diff --git a/.clippy.toml b/.clippy.toml new file mode 100644 index 000000000000..e4c4eef10b28 --- /dev/null +++ b/.clippy.toml @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 + +check-private-items = true + +disallowed-macros = [ + # The `clippy::dbg_macro` lint only works with `std::dbg!`, thus we simulate + # it here, see: https://github.com/rust-lang/rust-clippy/issues/11303. + { path = "kernel::dbg", reason = "the `dbg!` macro is intended as a debugging tool" }, +] diff --git a/.gitignore b/.gitignore index 56972adb5031..a61e4778d011 100644 --- a/.gitignore +++ b/.gitignore @@ -103,6 +103,7 @@ modules.order # We don't want to ignore the following even if they are dot-files # !.clang-format +!.clippy.toml !.cocciconfig !.editorconfig !.get_maintainer.ignore diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst index f8bc1630eba0..fa21cdd610b2 100644 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -212,6 +212,17 @@ pid>/``). This value defaults to 0. +core_sort_vma +============= + +The default coredump writes VMAs in address order. By setting +``core_sort_vma`` to 1, VMAs will be written from smallest size +to largest size. This is known to break at least elfutils, but +can be handy when dealing with very large (and truncated) +coredumps where the more useful debugging details are included +in the smaller VMAs. + + core_uses_pid ============= diff --git a/Documentation/rust/coding-guidelines.rst b/Documentation/rust/coding-guidelines.rst index 329b070a1d47..a2e326b42410 100644 --- a/Documentation/rust/coding-guidelines.rst +++ b/Documentation/rust/coding-guidelines.rst @@ -227,3 +227,149 @@ The equivalent in Rust may look like (ignoring documentation): That is, the equivalent of ``GPIO_LINE_DIRECTION_IN`` would be referred to as ``gpio::LineDirection::In``. In particular, it should not be named ``gpio::gpio_line_direction::GPIO_LINE_DIRECTION_IN``. + + +Lints +----- + +In Rust, it is possible to ``allow`` particular warnings (diagnostics, lints) +locally, making the compiler ignore instances of a given warning within a given +function, module, block, etc. + +It is similar to ``#pragma GCC diagnostic push`` + ``ignored`` + ``pop`` in C +[#]_: + +.. code-block:: c + + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wunused-function" + static void f(void) {} + #pragma GCC diagnostic pop + +.. [#] In this particular case, the kernel's ``__{always,maybe}_unused`` + attributes (C23's ``[[maybe_unused]]``) may be used; however, the example + is meant to reflect the equivalent lint in Rust discussed afterwards. + +But way less verbose: + +.. code-block:: rust + + #[allow(dead_code)] + fn f() {} + +By that virtue, it makes it possible to comfortably enable more diagnostics by +default (i.e. outside ``W=`` levels). In particular, those that may have some +false positives but that are otherwise quite useful to keep enabled to catch +potential mistakes. + +On top of that, Rust provides the ``expect`` attribute which takes this further. +It makes the compiler warn if the warning was not produced. For instance, the +following will ensure that, when ``f()`` is called somewhere, we will have to +remove the attribute: + +.. code-block:: rust + + #[expect(dead_code)] + fn f() {} + +If we do not, we get a warning from the compiler:: + + warning: this lint expectation is unfulfilled + --> x.rs:3:10 + | + 3 | #[expect(dead_code)] + | ^^^^^^^^^ + | + = note: `#[warn(unfulfilled_lint_expectations)]` on by default + +This means that ``expect``\ s do not get forgotten when they are not needed, which +may happen in several situations, e.g.: + +- Temporary attributes added while developing. + +- Improvements in lints in the compiler, Clippy or custom tools which may + remove a false positive. + +- When the lint is not needed anymore because it was expected that it would be + removed at some point, such as the ``dead_code`` example above. + +It also increases the visibility of the remaining ``allow``\ s and reduces the +chance of misapplying one. + +Thus prefer ``expect`` over ``allow`` unless: + +- Conditional compilation triggers the warning in some cases but not others. + + If there are only a few cases where the warning triggers (or does not + trigger) compared to the total number of cases, then one may consider using + a conditional ``expect`` (i.e. ``cfg_attr(..., expect(...))``). Otherwise, + it is likely simpler to just use ``allow``. + +- Inside macros, when the different invocations may create expanded code that + triggers the warning in some cases but not in others. + +- When code may trigger a warning for some architectures but not others, such + as an ``as`` cast to a C FFI type. + +As a more developed example, consider for instance this program: + +.. code-block:: rust + + fn g() {} + + fn main() { + #[cfg(CONFIG_X)] + g(); + } + +Here, function ``g()`` is dead code if ``CONFIG_X`` is not set. Can we use +``expect`` here? + +.. code-block:: rust + + #[expect(dead_code)] + fn g() {} + + fn main() { + #[cfg(CONFIG_X)] + g(); + } + +This would emit a lint if ``CONFIG_X`` is set, since it is not dead code in that +configuration. Therefore, in cases like this, we cannot use ``expect`` as-is. + +A simple possibility is using ``allow``: + +.. code-block:: rust + + #[allow(dead_code)] + fn g() {} + + fn main() { + #[cfg(CONFIG_X)] + g(); + } + +An alternative would be using a conditional ``expect``: + +.. code-block:: rust + + #[cfg_attr(not(CONFIG_X), expect(dead_code))] + fn g() {} + + fn main() { + #[cfg(CONFIG_X)] + g(); + } + +This would ensure that, if someone introduces another call to ``g()`` somewhere +(e.g. unconditionally), then it would be spotted that it is not dead code +anymore. However, the ``cfg_attr`` is more complex than a simple ``allow``. + +Therefore, it is likely that it is not worth using conditional ``expect``\ s when +more than one or two configurations are involved or when the lint may be +triggered due to non-local changes (such as ``dead_code``). + +For more information about diagnostics in Rust, please see: + + https://doc.rust-lang.org/stable/reference/attributes/diagnostics.html diff --git a/MAINTAINERS b/MAINTAINERS index 6bb4ec0c162a..de04c7ba8571 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20175,6 +20175,7 @@ B: https://github.com/Rust-for-Linux/linux/issues C: zulip://rust-for-linux.zulipchat.com P: https://rust-for-linux.com/contributing T: git https://github.com/Rust-for-Linux/linux.git rust-next +F: .clippy.toml F: Documentation/rust/ F: rust/ F: samples/rust/ @@ -20182,6 +20183,13 @@ F: scripts/*rust* F: tools/testing/selftests/rust/ K: \b(?i:rust)\b +RUST [ALLOC] +M: Danilo Krummrich <dakr@xxxxxxxxxx> +L: rust-for-linux@xxxxxxxxxxxxxxx +S: Maintained +F: rust/kernel/alloc.rs +F: rust/kernel/alloc/ + RXRPC SOCKETS (AF_RXRPC) M: David Howells <dhowells@xxxxxxxxxx> M: Marc Dionne <marc.dionne@xxxxxxxxxxxx> diff --git a/Makefile b/Makefile index 17dfe0a8ca8f..343c9f25433c 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 6 PATCHLEVEL = 12 -SUBLEVEL = 18 +SUBLEVEL = 19 EXTRAVERSION = NAME = Baby Opossum Posse @@ -446,19 +446,23 @@ KBUILD_USERLDFLAGS := $(USERLDFLAGS) export rust_common_flags := --edition=2021 \ -Zbinary_dep_depinfo=y \ -Astable_features \ - -Dunsafe_op_in_unsafe_fn \ -Dnon_ascii_idents \ + -Dunsafe_op_in_unsafe_fn \ + -Wmissing_docs \ -Wrust_2018_idioms \ -Wunreachable_pub \ - -Wmissing_docs \ - -Wrustdoc::missing_crate_level_docs \ -Wclippy::all \ + -Wclippy::ignored_unit_patterns \ -Wclippy::mut_mut \ -Wclippy::needless_bitwise_bool \ -Wclippy::needless_continue \ -Aclippy::needless_lifetimes \ -Wclippy::no_mangle_with_rust_abi \ - -Wclippy::dbg_macro + -Wclippy::undocumented_unsafe_blocks \ + -Wclippy::unnecessary_safety_comment \ + -Wclippy::unnecessary_safety_doc \ + -Wrustdoc::missing_crate_level_docs \ + -Wrustdoc::unescaped_backticks KBUILD_HOSTCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(HOST_LFS_CFLAGS) \ $(HOSTCFLAGS) -I $(srctree)/scripts/include @@ -583,6 +587,9 @@ endif # Allows the usage of unstable features in stable compilers. export RUSTC_BOOTSTRAP := 1 +# Allows finding `.clippy.toml` in out-of-srctree builds. +export CLIPPY_CONF_DIR := $(srctree) + export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC HOSTPKG_CONFIG export RUSTC RUSTDOC RUSTFMT RUSTC_OR_CLIPPY_QUIET RUSTC_OR_CLIPPY BINDGEN export HOSTRUSTC KBUILD_HOSTRUSTFLAGS @@ -1060,6 +1067,11 @@ endif KBUILD_USERCFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)) KBUILD_USERLDFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)) +# userspace programs are linked via the compiler, use the correct linker +ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_LD_IS_LLD),yy) +KBUILD_USERLDFLAGS += --ld-path=$(LD) +endif + # make the checker run with the right architecture CHECKFLAGS += --arch=$(ARCH) diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h index 293f880865e8..f0304273eb35 100644 --- a/arch/arm64/include/asm/hugetlb.h +++ b/arch/arm64/include/asm/hugetlb.h @@ -34,8 +34,8 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty); #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR -extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep); +extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, unsigned long sz); #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT extern void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep); diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index 0a6956bbfb32..fe167ce297a1 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -100,20 +100,11 @@ static int find_num_contig(struct mm_struct *mm, unsigned long addr, static inline int num_contig_ptes(unsigned long size, size_t *pgsize) { - int contig_ptes = 0; + int contig_ptes = 1; *pgsize = size; switch (size) { -#ifndef __PAGETABLE_PMD_FOLDED - case PUD_SIZE: - if (pud_sect_supported()) - contig_ptes = 1; - break; -#endif - case PMD_SIZE: - contig_ptes = 1; - break; case CONT_PMD_SIZE: *pgsize = PMD_SIZE; contig_ptes = CONT_PMDS; @@ -122,6 +113,8 @@ static inline int num_contig_ptes(unsigned long size, size_t *pgsize) *pgsize = PAGE_SIZE; contig_ptes = CONT_PTES; break; + default: + WARN_ON(!__hugetlb_valid_size(size)); } return contig_ptes; @@ -163,24 +156,23 @@ static pte_t get_clear_contig(struct mm_struct *mm, unsigned long pgsize, unsigned long ncontig) { - pte_t orig_pte = __ptep_get(ptep); - unsigned long i; - - for (i = 0; i < ncontig; i++, addr += pgsize, ptep++) { - pte_t pte = __ptep_get_and_clear(mm, addr, ptep); - - /* - * If HW_AFDBM is enabled, then the HW could turn on - * the dirty or accessed bit for any page in the set, - * so check them all. - */ - if (pte_dirty(pte)) - orig_pte = pte_mkdirty(orig_pte); - - if (pte_young(pte)) - orig_pte = pte_mkyoung(orig_pte); + pte_t pte, tmp_pte; + bool present; + + pte = __ptep_get_and_clear(mm, addr, ptep); + present = pte_present(pte); + while (--ncontig) { + ptep++; + addr += pgsize; + tmp_pte = __ptep_get_and_clear(mm, addr, ptep); + if (present) { + if (pte_dirty(tmp_pte)) + pte = pte_mkdirty(pte); + if (pte_young(tmp_pte)) + pte = pte_mkyoung(pte); + } } - return orig_pte; + return pte; } static pte_t get_clear_contig_flush(struct mm_struct *mm, @@ -385,18 +377,13 @@ void huge_pte_clear(struct mm_struct *mm, unsigned long addr, __pte_clear(mm, addr, ptep); } -pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) +pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, unsigned long sz) { int ncontig; size_t pgsize; - pte_t orig_pte = __ptep_get(ptep); - - if (!pte_cont(orig_pte)) - return __ptep_get_and_clear(mm, addr, ptep); - - ncontig = find_num_contig(mm, addr, ptep, &pgsize); + ncontig = num_contig_ptes(sz, &pgsize); return get_clear_contig(mm, addr, ptep, pgsize, ncontig); } @@ -538,6 +525,8 @@ bool __init arch_hugetlb_valid_size(unsigned long size) pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { + unsigned long psize = huge_page_size(hstate_vma(vma)); + if (alternative_has_cap_unlikely(ARM64_WORKAROUND_2645198)) { /* * Break-before-make (BBM) is required for all user space mappings @@ -547,7 +536,7 @@ pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr if (pte_user_exec(__ptep_get(ptep))) return huge_ptep_clear_flush(vma, addr, ptep); } - return huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); + return huge_ptep_get_and_clear(vma->vm_mm, addr, ptep, psize); } void huge_ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, diff --git a/arch/loongarch/include/asm/bug.h b/arch/loongarch/include/asm/bug.h index 08388876ade4..561ac1bf79e2 100644 --- a/arch/loongarch/include/asm/bug.h +++ b/arch/loongarch/include/asm/bug.h @@ -4,6 +4,7 @@ #include <asm/break.h> #include <linux/stringify.h> +#include <linux/objtool.h> #ifndef CONFIG_DEBUG_BUGVERBOSE #define _BUGVERBOSE_LOCATION(file, line) @@ -33,25 +34,25 @@ #define ASM_BUG_FLAGS(flags) \ __BUG_ENTRY(flags) \ - break BRK_BUG + break BRK_BUG; #define ASM_BUG() ASM_BUG_FLAGS(0) -#define __BUG_FLAGS(flags) \ - asm_inline volatile (__stringify(ASM_BUG_FLAGS(flags))); +#define __BUG_FLAGS(flags, extra) \ + asm_inline volatile (__stringify(ASM_BUG_FLAGS(flags)) \ + extra); #define __WARN_FLAGS(flags) \ do { \ instrumentation_begin(); \ - __BUG_FLAGS(BUGFLAG_WARNING|(flags)); \ - annotate_reachable(); \ + __BUG_FLAGS(BUGFLAG_WARNING|(flags), ASM_REACHABLE); \ instrumentation_end(); \ } while (0) #define BUG() \ do { \ instrumentation_begin(); \ - __BUG_FLAGS(0); \ + __BUG_FLAGS(0, ""); \ unreachable(); \ } while (0) diff --git a/arch/loongarch/include/asm/hugetlb.h b/arch/loongarch/include/asm/hugetlb.h index 376c0708e297..6302e60fbaee 100644 --- a/arch/loongarch/include/asm/hugetlb.h +++ b/arch/loongarch/include/asm/hugetlb.h @@ -41,7 +41,8 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) + unsigned long addr, pte_t *ptep, + unsigned long sz) { pte_t clear; pte_t pte = ptep_get(ptep); @@ -56,8 +57,9 @@ static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { pte_t pte; + unsigned long sz = huge_page_size(hstate_vma(vma)); - pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); + pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep, sz); flush_tlb_page(vma, addr); return pte; } diff --git a/arch/loongarch/kernel/machine_kexec.c b/arch/loongarch/kernel/machine_kexec.c index 8ae641dc53bb..f9381800e291 100644 --- a/arch/loongarch/kernel/machine_kexec.c +++ b/arch/loongarch/kernel/machine_kexec.c @@ -126,14 +126,14 @@ void kexec_reboot(void) /* All secondary cpus go to kexec_smp_wait */ if (smp_processor_id() > 0) { relocated_kexec_smp_wait(NULL); - unreachable(); + BUG(); } #endif do_kexec = (void *)reboot_code_buffer; do_kexec(efi_boot, cmdline_ptr, systable_ptr, start_addr, first_ind_entry); - unreachable(); + BUG(); } diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index 56934fe58170..1fa6a604734e 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -387,6 +387,9 @@ static void __init check_kernel_sections_mem(void) */ static void __init arch_mem_init(char **cmdline_p) { + /* Recalculate max_low_pfn for "mem=xxx" */ + max_pfn = max_low_pfn = PHYS_PFN(memblock_end_of_DRAM()); + if (usermem) pr_info("User-defined physical RAM map overwrite\n"); diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c index 5d59e9ce2772..d96065dbe779 100644 --- a/arch/loongarch/kernel/smp.c +++ b/arch/loongarch/kernel/smp.c @@ -19,6 +19,7 @@ #include <linux/smp.h> #include <linux/threads.h> #include <linux/export.h> +#include <linux/suspend.h> #include <linux/syscore_ops.h> #include <linux/time.h> #include <linux/tracepoint.h> @@ -423,7 +424,7 @@ void loongson_cpu_die(unsigned int cpu) mb(); } -void __noreturn arch_cpu_idle_dead(void) +static void __noreturn idle_play_dead(void) { register uint64_t addr; register void (*init_fn)(void); @@ -447,6 +448,50 @@ void __noreturn arch_cpu_idle_dead(void) BUG(); } +#ifdef CONFIG_HIBERNATION +static void __noreturn poll_play_dead(void) +{ + register uint64_t addr; + register void (*init_fn)(void); + + idle_task_exit(); + __this_cpu_write(cpu_state, CPU_DEAD); + + __smp_mb(); + do { + __asm__ __volatile__("nop\n\t"); + addr = iocsr_read64(LOONGARCH_IOCSR_MBUF0); + } while (addr == 0); + + init_fn = (void *)TO_CACHE(addr); + iocsr_write32(0xffffffff, LOONGARCH_IOCSR_IPI_CLEAR); + + init_fn(); + BUG(); +} +#endif + +static void (*play_dead)(void) = idle_play_dead; + +void __noreturn arch_cpu_idle_dead(void) +{ + play_dead(); + BUG(); /* play_dead() doesn't return */ +} + +#ifdef CONFIG_HIBERNATION +int hibernate_resume_nonboot_cpu_disable(void) +{ + int ret; + + play_dead = poll_play_dead; + ret = suspend_disable_secondary_cpus(); + play_dead = idle_play_dead; + + return ret; +} +#endif + #endif /* diff --git a/arch/loongarch/kvm/exit.c b/arch/loongarch/kvm/exit.c index 90894f70ff4a..add52e927f15 100644 --- a/arch/loongarch/kvm/exit.c +++ b/arch/loongarch/kvm/exit.c @@ -624,6 +624,12 @@ static int kvm_handle_rdwr_fault(struct kvm_vcpu *vcpu, bool write) struct kvm_run *run = vcpu->run; unsigned long badv = vcpu->arch.badv; + /* Inject ADE exception if exceed max GPA size */ + if (unlikely(badv >= vcpu->kvm->arch.gpa_size)) { + kvm_queue_exception(vcpu, EXCCODE_ADE, EXSUBCODE_ADEM); + return RESUME_GUEST; + } + ret = kvm_handle_mm_fault(vcpu, badv, write); if (ret) { /* Treat as MMIO */ diff --git a/arch/loongarch/kvm/main.c b/arch/loongarch/kvm/main.c index 7e8f5d6829ef..34fad2c29ee6 100644 --- a/arch/loongarch/kvm/main.c +++ b/arch/loongarch/kvm/main.c @@ -297,6 +297,13 @@ int kvm_arch_enable_virtualization_cpu(void) kvm_debug("GCFG:%lx GSTAT:%lx GINTC:%lx GTLBC:%lx", read_csr_gcfg(), read_csr_gstat(), read_csr_gintc(), read_csr_gtlbc()); + /* + * HW Guest CSR registers are lost after CPU suspend and resume. + * Clear last_vcpu so that Guest CSR registers forced to reload + * from vCPU SW state. + */ + this_cpu_ptr(vmcs)->last_vcpu = NULL; + return 0; } diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c index 9d53eca66fcc..e7a084de64f7 100644 --- a/arch/loongarch/kvm/vcpu.c +++ b/arch/loongarch/kvm/vcpu.c @@ -311,7 +311,7 @@ static int kvm_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu) { int ret = RESUME_GUEST; unsigned long estat = vcpu->arch.host_estat; - u32 intr = estat & 0x1fff; /* Ignore NMI */ + u32 intr = estat & CSR_ESTAT_IS; u32 ecode = (estat & CSR_ESTAT_EXC) >> CSR_ESTAT_EXC_SHIFT; vcpu->mode = OUTSIDE_GUEST_MODE; diff --git a/arch/loongarch/kvm/vm.c b/arch/loongarch/kvm/vm.c index 4ba734aaef87..fe9e973912d4 100644 --- a/arch/loongarch/kvm/vm.c +++ b/arch/loongarch/kvm/vm.c @@ -46,7 +46,11 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) if (kvm_pvtime_supported()) kvm->arch.pv_features |= BIT(KVM_FEATURE_STEAL_TIME); - kvm->arch.gpa_size = BIT(cpu_vabits - 1); + /* + * cpu_vabits means user address space only (a half of total). + * GPA size of VM is the same with the size of user address space. + */ + kvm->arch.gpa_size = BIT(cpu_vabits); kvm->arch.root_level = CONFIG_PGTABLE_LEVELS - 1; kvm->arch.invalid_ptes[0] = 0; kvm->arch.invalid_ptes[1] = (unsigned long)invalid_pte_table; diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h index fd69c8808554..00ee3c036630 100644 --- a/arch/mips/include/asm/hugetlb.h +++ b/arch/mips/include/asm/hugetlb.h @@ -32,7 +32,8 @@ static inline int prepare_hugepage_range(struct file *file, #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) + unsigned long addr, pte_t *ptep, + unsigned long sz) { pte_t clear; pte_t pte = *ptep; @@ -47,13 +48,14 @@ static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { pte_t pte; + unsigned long sz = huge_page_size(hstate_vma(vma)); /* * clear the huge pte entry firstly, so that the other smp threads will * not get old pte entry after finishing flush_tlb_page and before * setting new huge pte entry */ - pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); + pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep, sz); flush_tlb_page(vma, addr); return pte; } diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h index 72daacc472a0..f7a91411dcc9 100644 --- a/arch/parisc/include/asm/hugetlb.h +++ b/arch/parisc/include/asm/hugetlb.h @@ -10,7 +10,7 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep); + pte_t *ptep, unsigned long sz); /* * If the arch doesn't supply something else, assume that hugepage diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c index aa664f7ddb63..cec2b9a581dd 100644 --- a/arch/parisc/mm/hugetlbpage.c +++ b/arch/parisc/mm/hugetlbpage.c @@ -147,7 +147,7 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep) + pte_t *ptep, unsigned long sz) { pte_t entry; diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h index dad2e7980f24..86326587e58d 100644 --- a/arch/powerpc/include/asm/hugetlb.h +++ b/arch/powerpc/include/asm/hugetlb.h @@ -45,7 +45,8 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) + unsigned long addr, pte_t *ptep, + unsigned long sz) { return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1)); } @@ -55,8 +56,9 @@ static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { pte_t pte; + unsigned long sz = huge_page_size(hstate_vma(vma)); - pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); + pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep, sz); flush_hugetlb_page(vma, addr); return pte; } diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c index 6824e8139801..3708fa48bee9 100644 --- a/arch/powerpc/kvm/e500_mmu_host.c +++ b/arch/powerpc/kvm/e500_mmu_host.c @@ -242,7 +242,7 @@ static inline int tlbe_is_writable(struct kvm_book3e_206_tlb_entry *tlbe) return tlbe->mas7_3 & (MAS3_SW|MAS3_UW); } -static inline bool kvmppc_e500_ref_setup(struct tlbe_ref *ref, +static inline void kvmppc_e500_ref_setup(struct tlbe_ref *ref, struct kvm_book3e_206_tlb_entry *gtlbe, kvm_pfn_t pfn, unsigned int wimg) { @@ -252,7 +252,11 @@ static inline bool kvmppc_e500_ref_setup(struct tlbe_ref *ref, /* Use guest supplied MAS2_G and MAS2_E */ ref->flags |= (gtlbe->mas2 & MAS2_ATTRIB_MASK) | wimg; - return tlbe_is_writable(gtlbe); + /* Mark the page accessed */ + kvm_set_pfn_accessed(pfn); + + if (tlbe_is_writable(gtlbe)) + kvm_set_pfn_dirty(pfn); } static inline void kvmppc_e500_ref_release(struct tlbe_ref *ref) @@ -322,7 +326,6 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500, { struct kvm_memory_slot *slot; unsigned long pfn = 0; /* silence GCC warning */ - struct page *page = NULL; unsigned long hva; int pfnmap = 0; int tsize = BOOK3E_PAGESZ_4K; @@ -334,7 +337,6 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500, unsigned int wimg = 0; pgd_t *pgdir; unsigned long flags; - bool writable = false; /* used to check for invalidations in progress */ mmu_seq = kvm->mmu_invalidate_seq; @@ -444,7 +446,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500, if (likely(!pfnmap)) { tsize_pages = 1UL << (tsize + 10 - PAGE_SHIFT); - pfn = __kvm_faultin_pfn(slot, gfn, FOLL_WRITE, NULL, &page); + pfn = gfn_to_pfn_memslot(slot, gfn); if (is_error_noslot_pfn(pfn)) { if (printk_ratelimit()) pr_err("%s: real page not found for gfn %lx\n", @@ -489,7 +491,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500, } local_irq_restore(flags); - writable = kvmppc_e500_ref_setup(ref, gtlbe, pfn, wimg); + kvmppc_e500_ref_setup(ref, gtlbe, pfn, wimg); kvmppc_e500_setup_stlbe(&vcpu_e500->vcpu, gtlbe, tsize, ref, gvaddr, stlbe); @@ -497,8 +499,11 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500, kvmppc_mmu_flush_icache(pfn); out: - kvm_release_faultin_page(kvm, page, !!ret, writable); spin_unlock(&kvm->mmu_lock); + + /* Drop refcount on page, so that mmu notifiers can clear it */ + kvm_release_pfn_clean(pfn); + return ret; } diff --git a/arch/riscv/include/asm/hugetlb.h b/arch/riscv/include/asm/hugetlb.h index faf3624d8057..446126497768 100644 --- a/arch/riscv/include/asm/hugetlb.h +++ b/arch/riscv/include/asm/hugetlb.h @@ -28,7 +28,8 @@ void set_huge_pte_at(struct mm_struct *mm, #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep); + unsigned long addr, pte_t *ptep, + unsigned long sz); #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, diff --git a/arch/riscv/mm/hugetlbpage.c b/arch/riscv/mm/hugetlbpage.c index 42314f093922..b4a78a4b35cf 100644 --- a/arch/riscv/mm/hugetlbpage.c +++ b/arch/riscv/mm/hugetlbpage.c @@ -293,7 +293,7 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma, pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep) + pte_t *ptep, unsigned long sz) { pte_t orig_pte = ptep_get(ptep); int pte_num; diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index cf1b5d6fb1a6..4731a51241ba 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -20,8 +20,15 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, void __set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte); pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep); +pte_t __huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep); + +static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep, + unsigned long sz) +{ + return __huge_ptep_get_and_clear(mm, addr, ptep); +} /* * If the arch doesn't supply something else, assume that hugepage @@ -57,7 +64,7 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) { - return huge_ptep_get_and_clear(vma->vm_mm, address, ptep); + return __huge_ptep_get_and_clear(vma->vm_mm, address, ptep); } static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, @@ -66,7 +73,7 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, { int changed = !pte_same(huge_ptep_get(vma->vm_mm, addr, ptep), pte); if (changed) { - huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); + __huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); __set_huge_pte_at(vma->vm_mm, addr, ptep, pte); } return changed; @@ -75,7 +82,7 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - pte_t pte = huge_ptep_get_and_clear(mm, addr, ptep); + pte_t pte = __huge_ptep_get_and_clear(mm, addr, ptep); __set_huge_pte_at(mm, addr, ptep, pte_wrprotect(pte)); } diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 160b2acba8db..908bae849843 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -284,10 +284,10 @@ static void __init test_monitor_call(void) return; asm volatile( " mc 0,0\n" - "0: xgr %0,%0\n" + "0: lhi %[val],0\n" "1:\n" - EX_TABLE(0b,1b) - : "+d" (val)); + EX_TABLE(0b, 1b) + : [val] "+d" (val)); if (!val) panic("Monitor call doesn't work!\n"); } diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c index ded0eff58a19..9c1ba8c0cac6 100644 --- a/arch/s390/mm/hugetlbpage.c +++ b/arch/s390/mm/hugetlbpage.c @@ -174,8 +174,8 @@ pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep) return __rste_to_pte(pte_val(*ptep)); } -pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) +pte_t __huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) { pte_t pte = huge_ptep_get(mm, addr, ptep); pmd_t *pmdp = (pmd_t *) ptep; diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h index c714ca6a05aa..e7a9cdd498dc 100644 --- a/arch/sparc/include/asm/hugetlb.h +++ b/arch/sparc/include/asm/hugetlb.h @@ -20,7 +20,7 @@ void __set_huge_pte_at(struct mm_struct *mm, unsigned long addr, #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep); + pte_t *ptep, unsigned long sz); #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c index cc91ca7a1e18..c276d70a7479 100644 --- a/arch/sparc/mm/hugetlbpage.c +++ b/arch/sparc/mm/hugetlbpage.c @@ -368,7 +368,7 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, } pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep) + pte_t *ptep, unsigned long sz) { unsigned int i, nptes, orig_shift, shift; unsigned long size; diff --git a/arch/x86/boot/compressed/pgtable_64.c b/arch/x86/boot/compressed/pgtable_64.c index c882e1f67af0..d8c5de40669d 100644 --- a/arch/x86/boot/compressed/pgtable_64.c +++ b/arch/x86/boot/compressed/pgtable_64.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include "misc.h" #include <asm/bootparam.h> +#include <asm/bootparam_utils.h> #include <asm/e820/types.h> #include <asm/processor.h> #include "pgtable.h" @@ -107,6 +108,7 @@ asmlinkage void configure_5level_paging(struct boot_params *bp, void *pgtable) bool l5_required = false; /* Initialize boot_params. Required for cmdline_find_option_bool(). */ + sanitize_boot_params(bp); boot_params_ptr = bp; /* diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 8499b9cb9c82..e4dd840e0bec 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -761,6 +761,7 @@ struct kvm_vcpu_arch { u32 pkru; u32 hflags; u64 efer; + u64 host_debugctl; u64 apic_base; struct kvm_lapic *apic; /* kernel irqchip context */ bool load_eoi_exitmap_pending; diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c index 37b8244899d8..04712fd0c964 100644 --- a/arch/x86/kernel/amd_nb.c +++ b/arch/x86/kernel/amd_nb.c @@ -405,7 +405,6 @@ bool __init early_is_amd_nb(u32 device) struct resource *amd_get_mmconfig_range(struct resource *res) { - u32 address; u64 base, msr; unsigned int segn_busn_bits; @@ -413,13 +412,11 @@ struct resource *amd_get_mmconfig_range(struct resource *res) boot_cpu_data.x86_vendor != X86_VENDOR_HYGON) return NULL; - /* assume all cpus from fam10h have mmconfig */ - if (boot_cpu_data.x86 < 0x10) + /* Assume CPUs from Fam10h have mmconfig, although not all VMs do */ + if (boot_cpu_data.x86 < 0x10 || + rdmsrl_safe(MSR_FAM10H_MMIO_CONF_BASE, &msr)) return NULL; - address = MSR_FAM10H_MMIO_CONF_BASE; - rdmsrl(address, msr); - /* mmconfig is not enabled */ if (!(msr & FAM10H_MMIO_CONF_ENABLE)) return NULL; diff --git a/arch/x86/kernel/cpu/cacheinfo.c b/arch/x86/kernel/cpu/cacheinfo.c index e6fa03ed9172..a6c6bccfa8b8 100644 --- a/arch/x86/kernel/cpu/cacheinfo.c +++ b/arch/x86/kernel/cpu/cacheinfo.c @@ -808,7 +808,7 @@ void init_intel_cacheinfo(struct cpuinfo_x86 *c) cpuid(2, ®s[0], ®s[1], ®s[2], ®s[3]); /* If bit 31 is set, this is an unknown format */ - for (j = 0 ; j < 3 ; j++) + for (j = 0 ; j < 4 ; j++) if (regs[j] & (1 << 31)) regs[j] = 0; diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 4b5f3d052151..b93d88ec1417 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -672,26 +672,37 @@ static unsigned int intel_size_cache(struct cpuinfo_x86 *c, unsigned int size) } #endif -#define TLB_INST_4K 0x01 -#define TLB_INST_4M 0x02 -#define TLB_INST_2M_4M 0x03 +#define TLB_INST_4K 0x01 +#define TLB_INST_4M 0x02 +#define TLB_INST_2M_4M 0x03 -#define TLB_INST_ALL 0x05 -#define TLB_INST_1G 0x06 +#define TLB_INST_ALL 0x05 +#define TLB_INST_1G 0x06 -#define TLB_DATA_4K 0x11 -#define TLB_DATA_4M 0x12 -#define TLB_DATA_2M_4M 0x13 -#define TLB_DATA_4K_4M 0x14 +#define TLB_DATA_4K 0x11 +#define TLB_DATA_4M 0x12 +#define TLB_DATA_2M_4M 0x13 +#define TLB_DATA_4K_4M 0x14 -#define TLB_DATA_1G 0x16 +#define TLB_DATA_1G 0x16 +#define TLB_DATA_1G_2M_4M 0x17 -#define TLB_DATA0_4K 0x21 -#define TLB_DATA0_4M 0x22 -#define TLB_DATA0_2M_4M 0x23 +#define TLB_DATA0_4K 0x21 +#define TLB_DATA0_4M 0x22 +#define TLB_DATA0_2M_4M 0x23 -#define STLB_4K 0x41 -#define STLB_4K_2M 0x42 +#define STLB_4K 0x41 +#define STLB_4K_2M 0x42 + +/* + * All of leaf 0x2's one-byte TLB descriptors implies the same number of + * entries for their respective TLB types. The 0x63 descriptor is an + * exception: it implies 4 dTLB entries for 1GB pages 32 dTLB entries + * for 2MB or 4MB pages. Encode descriptor 0x63 dTLB entry count for + * 2MB/4MB pages here, as its count for dTLB 1GB pages is already at the + * intel_tlb_table[] mapping. + */ +#define TLB_0x63_2M_4M_ENTRIES 32 static const struct _tlb_table intel_tlb_table[] = { { 0x01, TLB_INST_4K, 32, " TLB_INST 4 KByte pages, 4-way set associative" }, @@ -713,7 +724,8 @@ static const struct _tlb_table intel_tlb_table[] = { { 0x5c, TLB_DATA_4K_4M, 128, " TLB_DATA 4 KByte and 4 MByte pages" }, { 0x5d, TLB_DATA_4K_4M, 256, " TLB_DATA 4 KByte and 4 MByte pages" }, { 0x61, TLB_INST_4K, 48, " TLB_INST 4 KByte pages, full associative" }, - { 0x63, TLB_DATA_1G, 4, " TLB_DATA 1 GByte pages, 4-way set associative" }, + { 0x63, TLB_DATA_1G_2M_4M, 4, " TLB_DATA 1 GByte pages, 4-way set associative" + " (plus 32 entries TLB_DATA 2 MByte or 4 MByte pages, not encoded here)" }, { 0x6b, TLB_DATA_4K, 256, " TLB_DATA 4 KByte pages, 8-way associative" }, { 0x6c, TLB_DATA_2M_4M, 128, " TLB_DATA 2 MByte or 4 MByte pages, 8-way associative" }, { 0x6d, TLB_DATA_1G, 16, " TLB_DATA 1 GByte pages, fully associative" }, @@ -813,6 +825,12 @@ static void intel_tlb_lookup(const unsigned char desc) if (tlb_lld_4m[ENTRIES] < intel_tlb_table[k].entries) tlb_lld_4m[ENTRIES] = intel_tlb_table[k].entries; break; + case TLB_DATA_1G_2M_4M: + if (tlb_lld_2m[ENTRIES] < TLB_0x63_2M_4M_ENTRIES) + tlb_lld_2m[ENTRIES] = TLB_0x63_2M_4M_ENTRIES; + if (tlb_lld_4m[ENTRIES] < TLB_0x63_2M_4M_ENTRIES) + tlb_lld_4m[ENTRIES] = TLB_0x63_2M_4M_ENTRIES; + fallthrough; case TLB_DATA_1G: if (tlb_lld_1g[ENTRIES] < intel_tlb_table[k].entries) tlb_lld_1g[ENTRIES] = intel_tlb_table[k].entries; @@ -836,7 +854,7 @@ static void intel_detect_tlb(struct cpuinfo_x86 *c) cpuid(2, ®s[0], ®s[1], ®s[2], ®s[3]); /* If bit 31 is set, this is an unknown format */ - for (j = 0 ; j < 3 ; j++) + for (j = 0 ; j < 4 ; j++) if (regs[j] & (1 << 31)) regs[j] = 0; diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index f5365b32582a..def6a2854a4b 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -175,23 +175,29 @@ static bool need_sha_check(u32 cur_rev) { switch (cur_rev >> 8) { case 0x80012: return cur_rev <= 0x800126f; break; + case 0x80082: return cur_rev <= 0x800820f; break; case 0x83010: return cur_rev <= 0x830107c; break; case 0x86001: return cur_rev <= 0x860010e; break; case 0x86081: return cur_rev <= 0x8608108; break; case 0x87010: return cur_rev <= 0x8701034; break; case 0x8a000: return cur_rev <= 0x8a0000a; break; + case 0xa0010: return cur_rev <= 0xa00107a; break; case 0xa0011: return cur_rev <= 0xa0011da; break; case 0xa0012: return cur_rev <= 0xa001243; break; + case 0xa0082: return cur_rev <= 0xa00820e; break; case 0xa1011: return cur_rev <= 0xa101153; break; case 0xa1012: return cur_rev <= 0xa10124e; break; case 0xa1081: return cur_rev <= 0xa108109; break; case 0xa2010: return cur_rev <= 0xa20102f; break; case 0xa2012: return cur_rev <= 0xa201212; break; + case 0xa4041: return cur_rev <= 0xa404109; break; + case 0xa5000: return cur_rev <= 0xa500013; break; case 0xa6012: return cur_rev <= 0xa60120a; break; case 0xa7041: return cur_rev <= 0xa704109; break; case 0xa7052: return cur_rev <= 0xa705208; break; case 0xa7080: return cur_rev <= 0xa708009; break; case 0xa70c0: return cur_rev <= 0xa70C009; break; + case 0xaa001: return cur_rev <= 0xaa00116; break; case 0xaa002: return cur_rev <= 0xaa00218; break; default: break; } diff --git a/arch/x86/kernel/cpu/sgx/ioctl.c b/arch/x86/kernel/cpu/sgx/ioctl.c index b65ab214bdf5..776a20172867 100644 --- a/arch/x86/kernel/cpu/sgx/ioctl.c +++ b/arch/x86/kernel/cpu/sgx/ioctl.c @@ -64,6 +64,13 @@ static int sgx_encl_create(struct sgx_encl *encl, struct sgx_secs *secs) struct file *backing; long ret; + /* + * ECREATE would detect this too, but checking here also ensures + * that the 'encl_size' calculations below can never overflow. + */ + if (!is_power_of_2(secs->size)) + return -EINVAL; + va_page = sgx_encl_grow(encl, true); if (IS_ERR(va_page)) return PTR_ERR(va_page); diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 83bfecd1a6e4..9157b4485ded 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -1387,7 +1387,7 @@ static inline int __do_cpuid_func(struct kvm_cpuid_array *array, u32 function) entry->ecx = entry->edx = 0; if (!enable_pmu || !kvm_cpu_cap_has(X86_FEATURE_PERFMON_V2)) { - entry->eax = entry->ebx; + entry->eax = entry->ebx = 0; break; } diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index e9af87b12814..3ec56bf76ef1 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -4579,6 +4579,8 @@ void sev_es_vcpu_reset(struct vcpu_svm *svm) void sev_es_prepare_switch_to_guest(struct vcpu_svm *svm, struct sev_es_save_area *hostsa) { + struct kvm *kvm = svm->vcpu.kvm; + /* * All host state for SEV-ES guests is categorized into three swap types * based on how it is handled by hardware during a world switch: @@ -4602,10 +4604,15 @@ void sev_es_prepare_switch_to_guest(struct vcpu_svm *svm, struct sev_es_save_are /* * If DebugSwap is enabled, debug registers are loaded but NOT saved by - * the CPU (Type-B). If DebugSwap is disabled/unsupported, the CPU both - * saves and loads debug registers (Type-A). + * the CPU (Type-B). If DebugSwap is disabled/unsupported, the CPU does + * not save or load debug registers. Sadly, on CPUs without + * ALLOWED_SEV_FEATURES, KVM can't prevent SNP guests from enabling + * DebugSwap on secondary vCPUs without KVM's knowledge via "AP Create". + * Save all registers if DebugSwap is supported to prevent host state + * from being clobbered by a misbehaving guest. */ - if (sev_vcpu_has_debug_swap(svm)) { + if (sev_vcpu_has_debug_swap(svm) || + (sev_snp_guest(kvm) && cpu_feature_enabled(X86_FEATURE_DEBUG_SWAP))) { hostsa->dr0 = native_get_debugreg(0); hostsa->dr1 = native_get_debugreg(1); hostsa->dr2 = native_get_debugreg(2); diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index a7cb7c82b38e..e39ab7c0be4e 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3167,6 +3167,27 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr) kvm_pr_unimpl_wrmsr(vcpu, ecx, data); break; } + + /* + * AMD changed the architectural behavior of bits 5:2. On CPUs + * without BusLockTrap, bits 5:2 control "external pins", but + * on CPUs that support BusLockDetect, bit 2 enables BusLockTrap + * and bits 5:3 are reserved-to-zero. Sadly, old KVM allowed + * the guest to set bits 5:2 despite not actually virtualizing + * Performance-Monitoring/Breakpoint external pins. Drop bits + * 5:2 for backwards compatibility. + */ + data &= ~GENMASK(5, 2); + + /* + * Suppress BTF as KVM doesn't virtualize BTF, but there's no + * way to communicate lack of support to the guest. + */ + if (data & DEBUGCTLMSR_BTF) { + kvm_pr_unimpl_wrmsr(vcpu, MSR_IA32_DEBUGCTLMSR, data); + data &= ~DEBUGCTLMSR_BTF; + } + if (data & DEBUGCTL_RESERVED_BITS) return 1; @@ -4176,6 +4197,18 @@ static noinstr void svm_vcpu_enter_exit(struct kvm_vcpu *vcpu, bool spec_ctrl_in guest_state_enter_irqoff(); + /* + * Set RFLAGS.IF prior to VMRUN, as the host's RFLAGS.IF at the time of + * VMRUN controls whether or not physical IRQs are masked (KVM always + * runs with V_INTR_MASKING_MASK). Toggle RFLAGS.IF here to avoid the + * temptation to do STI+VMRUN+CLI, as AMD CPUs bleed the STI shadow + * into guest state if delivery of an event during VMRUN triggers a + * #VMEXIT, and the guest_state transitions already tell lockdep that + * IRQs are being enabled/disabled. Note! GIF=0 for the entirety of + * this path, so IRQs aren't actually unmasked while running host code. + */ + raw_local_irq_enable(); + amd_clear_divider(); if (sev_es_guest(vcpu->kvm)) @@ -4184,6 +4217,8 @@ static noinstr void svm_vcpu_enter_exit(struct kvm_vcpu *vcpu, bool spec_ctrl_in else __svm_vcpu_run(svm, spec_ctrl_intercepted); + raw_local_irq_disable(); + guest_state_exit_irqoff(); } @@ -4240,6 +4275,16 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu, clgi(); kvm_load_guest_xsave_state(vcpu); + /* + * Hardware only context switches DEBUGCTL if LBR virtualization is + * enabled. Manually load DEBUGCTL if necessary (and restore it after + * VM-Exit), as running with the host's DEBUGCTL can negatively affect + * guest state and can even be fatal, e.g. due to Bus Lock Detect. + */ + if (!(svm->vmcb->control.virt_ext & LBR_CTL_ENABLE_MASK) && + vcpu->arch.host_debugctl != svm->vmcb->save.dbgctl) + update_debugctlmsr(svm->vmcb->save.dbgctl); + kvm_wait_lapic_expire(vcpu); /* @@ -4267,6 +4312,10 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu, if (unlikely(svm->vmcb->control.exit_code == SVM_EXIT_NMI)) kvm_before_interrupt(vcpu, KVM_HANDLING_NMI); + if (!(svm->vmcb->control.virt_ext & LBR_CTL_ENABLE_MASK) && + vcpu->arch.host_debugctl != svm->vmcb->save.dbgctl) + update_debugctlmsr(vcpu->arch.host_debugctl); + kvm_load_host_xsave_state(vcpu); stgi(); diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 43fa6a16eb19..d114efac7af7 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -591,7 +591,7 @@ static inline bool is_vnmi_enabled(struct vcpu_svm *svm) /* svm.c */ #define MSR_INVALID 0xffffffffU -#define DEBUGCTL_RESERVED_BITS (~(0x3fULL)) +#define DEBUGCTL_RESERVED_BITS (~DEBUGCTLMSR_LBR) extern bool dump_invalid_vmcb; diff --git a/arch/x86/kvm/svm/vmenter.S b/arch/x86/kvm/svm/vmenter.S index 2ed80aea3bb1..0c61153b275f 100644 --- a/arch/x86/kvm/svm/vmenter.S +++ b/arch/x86/kvm/svm/vmenter.S @@ -170,12 +170,8 @@ SYM_FUNC_START(__svm_vcpu_run) mov VCPU_RDI(%_ASM_DI), %_ASM_DI /* Enter guest mode */ - sti - 3: vmrun %_ASM_AX 4: - cli - /* Pop @svm to RAX while it's the only available register. */ pop %_ASM_AX @@ -340,12 +336,8 @@ SYM_FUNC_START(__svm_sev_es_vcpu_run) mov KVM_VMCB_pa(%rax), %rax /* Enter guest mode */ - sti - 1: vmrun %rax - -2: cli - +2: /* IMPORTANT: Stuff the RSB immediately after VM-Exit, before RET! */ FILL_RETURN_BUFFER %rax, RSB_CLEAR_LOOPS, X86_FEATURE_RSB_VMEXIT diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 1af30e3472cd..a3d45b01dbad 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -1515,16 +1515,12 @@ void vmx_vcpu_load_vmcs(struct kvm_vcpu *vcpu, int cpu, */ void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { - struct vcpu_vmx *vmx = to_vmx(vcpu); - if (vcpu->scheduled_out && !kvm_pause_in_guest(vcpu->kvm)) shrink_ple_window(vcpu); vmx_vcpu_load_vmcs(vcpu, cpu, NULL); vmx_vcpu_pi_load(vcpu, cpu); - - vmx->host_debugctlmsr = get_debugctlmsr(); } void vmx_vcpu_put(struct kvm_vcpu *vcpu) @@ -7454,8 +7450,8 @@ fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu, bool force_immediate_exit) } /* MSR_IA32_DEBUGCTLMSR is zeroed on vmexit. Restore it if needed */ - if (vmx->host_debugctlmsr) - update_debugctlmsr(vmx->host_debugctlmsr); + if (vcpu->arch.host_debugctl) + update_debugctlmsr(vcpu->arch.host_debugctl); #ifndef CONFIG_X86_64 /* diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index 41bf59bbc642..cf57fbf12104 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -339,8 +339,6 @@ struct vcpu_vmx { /* apic deadline value in host tsc */ u64 hv_deadline_tsc; - unsigned long host_debugctlmsr; - /* * Only bits masked by msr_ia32_feature_control_valid_bits can be set in * msr_ia32_feature_control. FEAT_CTL_LOCKED is always included diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b67a2f46e40b..8794c0a8a2e4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -10964,6 +10964,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) set_debugreg(0, 7); } + vcpu->arch.host_debugctl = get_debugctlmsr(); + guest_timing_enter_irqoff(); for (;;) { diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index eb503f53c319..101725c149c4 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -263,28 +263,33 @@ static void __init probe_page_size_mask(void) } /* - * INVLPG may not properly flush Global entries - * on these CPUs when PCIDs are enabled. + * INVLPG may not properly flush Global entries on + * these CPUs. New microcode fixes the issue. */ static const struct x86_cpu_id invlpg_miss_ids[] = { - X86_MATCH_VFM(INTEL_ALDERLAKE, 0), - X86_MATCH_VFM(INTEL_ALDERLAKE_L, 0), - X86_MATCH_VFM(INTEL_ATOM_GRACEMONT, 0), - X86_MATCH_VFM(INTEL_RAPTORLAKE, 0), - X86_MATCH_VFM(INTEL_RAPTORLAKE_P, 0), - X86_MATCH_VFM(INTEL_RAPTORLAKE_S, 0), + X86_MATCH_VFM(INTEL_ALDERLAKE, 0x2e), + X86_MATCH_VFM(INTEL_ALDERLAKE_L, 0x42c), + X86_MATCH_VFM(INTEL_ATOM_GRACEMONT, 0x11), + X86_MATCH_VFM(INTEL_RAPTORLAKE, 0x118), + X86_MATCH_VFM(INTEL_RAPTORLAKE_P, 0x4117), + X86_MATCH_VFM(INTEL_RAPTORLAKE_S, 0x2e), {} }; static void setup_pcid(void) { + const struct x86_cpu_id *invlpg_miss_match; + if (!IS_ENABLED(CONFIG_X86_64)) return; if (!boot_cpu_has(X86_FEATURE_PCID)) return; - if (x86_match_cpu(invlpg_miss_ids)) { + invlpg_miss_match = x86_match_cpu(invlpg_miss_ids); + + if (invlpg_miss_match && + boot_cpu_data.microcode < invlpg_miss_match->driver_data) { pr_info("Incomplete global flushes, disabling PCID"); setup_clear_cpu_cap(X86_FEATURE_PCID); return; diff --git a/block/partitions/efi.c b/block/partitions/efi.c index 5e9be13a56a8..7acba66eed48 100644 --- a/block/partitions/efi.c +++ b/block/partitions/efi.c @@ -682,7 +682,7 @@ static void utf16_le_to_7bit(const __le16 *in, unsigned int size, u8 *out) out[size] = 0; while (i < size) { - u8 c = le16_to_cpu(in[i]) & 0xff; + u8 c = le16_to_cpu(in[i]) & 0x7f; if (c && !isprint(c)) c = '!'; diff --git a/drivers/base/core.c b/drivers/base/core.c index d922cefc1e66..ec0ef6a0de94 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -2079,6 +2079,7 @@ static bool __fw_devlink_relax_cycles(struct fwnode_handle *con_handle, out: sup_handle->flags &= ~FWNODE_FLAG_VISITED; put_device(sup_dev); + put_device(con_dev); put_device(par_dev); return ret; } diff --git a/drivers/block/rnull.rs b/drivers/block/rnull.rs index b0227cf9ddd3..5de7223beb4d 100644 --- a/drivers/block/rnull.rs +++ b/drivers/block/rnull.rs @@ -32,7 +32,7 @@ } struct NullBlkModule { - _disk: Pin<Box<Mutex<GenDisk<NullBlkDevice>>>>, + _disk: Pin<KBox<Mutex<GenDisk<NullBlkDevice>>>>, } impl kernel::Module for NullBlkModule { @@ -47,7 +47,7 @@ fn init(_module: &'static ThisModule) -> Result<Self> { .rotational(false) .build(format_args!("rnullb{}", 0), tagset)?; - let disk = Box::pin_init(new_mutex!(disk, "nullb:disk"), flags::GFP_KERNEL)?; + let disk = KBox::pin_init(new_mutex!(disk, "nullb:disk"), flags::GFP_KERNEL)?; Ok(Self { _disk: disk }) } diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 458ac54e7b20..c7d728d686e5 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -2665,9 +2665,12 @@ static int ublk_ctrl_set_params(struct ublk_device *ub, if (ph.len > sizeof(struct ublk_params)) ph.len = sizeof(struct ublk_params); - /* parameters can only be changed when device isn't live */ mutex_lock(&ub->mutex); - if (ub->dev_info.state == UBLK_S_DEV_LIVE) { + if (test_bit(UB_STATE_USED, &ub->state)) { + /* + * Parameters can only be changed when device hasn't + * been started yet + */ ret = -EACCES; } else if (copy_from_user(&ub->params, argp, ph.len)) { ret = -EFAULT; diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 6bc6dd417adf..3a0b9dc98707 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -3644,6 +3644,7 @@ static ssize_t force_poll_sync_write(struct file *file, } static const struct file_operations force_poll_sync_fops = { + .owner = THIS_MODULE, .open = simple_open, .read = force_poll_sync_read, .write = force_poll_sync_write, diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c index 9938bb034c1c..acfd673834ed 100644 --- a/drivers/bus/mhi/host/pci_generic.c +++ b/drivers/bus/mhi/host/pci_generic.c @@ -1040,8 +1040,9 @@ static void mhi_pci_recovery_work(struct work_struct *work) err_unprepare: mhi_unprepare_after_power_down(mhi_cntrl); err_try_reset: - if (pci_reset_function(pdev)) - dev_err(&pdev->dev, "Recovery failed\n"); + err = pci_try_reset_function(pdev); + if (err) + dev_err(&pdev->dev, "Recovery failed: %d\n", err); } static void health_check(struct timer_list *t) diff --git a/drivers/cdx/cdx.c b/drivers/cdx/cdx.c index 07371cb653d3..4af1901c9d52 100644 --- a/drivers/cdx/cdx.c +++ b/drivers/cdx/cdx.c @@ -470,8 +470,12 @@ static ssize_t driver_override_show(struct device *dev, struct device_attribute *attr, char *buf) { struct cdx_device *cdx_dev = to_cdx_device(dev); + ssize_t len; - return sysfs_emit(buf, "%s\n", cdx_dev->driver_override); + device_lock(dev); + len = sysfs_emit(buf, "%s\n", cdx_dev->driver_override); + device_unlock(dev); + return len; } static DEVICE_ATTR_RW(driver_override); diff --git a/drivers/char/misc.c b/drivers/char/misc.c index 2cf595d2e10b..f7dd455dd0dd 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -264,8 +264,8 @@ int misc_register(struct miscdevice *misc) device_create_with_groups(&misc_class, misc->parent, dev, misc, misc->groups, "%s", misc->name); if (IS_ERR(misc->this_device)) { + misc_minor_free(misc->minor); if (is_dynamic) { - misc_minor_free(misc->minor); misc->minor = MISC_DYNAMIC_MINOR; } err = PTR_ERR(misc->this_device); diff --git a/drivers/gpio/gpio-aggregator.c b/drivers/gpio/gpio-aggregator.c index 38e0fff9afe7..cc6ee4334602 100644 --- a/drivers/gpio/gpio-aggregator.c +++ b/drivers/gpio/gpio-aggregator.c @@ -121,10 +121,15 @@ static ssize_t new_device_store(struct device_driver *driver, const char *buf, struct platform_device *pdev; int res, id; + if (!try_module_get(THIS_MODULE)) + return -ENOENT; + /* kernfs guarantees string termination, so count + 1 is safe */ aggr = kzalloc(sizeof(*aggr) + count + 1, GFP_KERNEL); - if (!aggr) - return -ENOMEM; + if (!aggr) { + res = -ENOMEM; + goto put_module; + } memcpy(aggr->args, buf, count + 1); @@ -163,6 +168,7 @@ static ssize_t new_device_store(struct device_driver *driver, const char *buf, } aggr->pdev = pdev; + module_put(THIS_MODULE); return count; remove_table: @@ -177,6 +183,8 @@ static ssize_t new_device_store(struct device_driver *driver, const char *buf, kfree(aggr->lookups); free_ga: kfree(aggr); +put_module: + module_put(THIS_MODULE); return res; } @@ -205,13 +213,19 @@ static ssize_t delete_device_store(struct device_driver *driver, if (error) return error; + if (!try_module_get(THIS_MODULE)) + return -ENOENT; + mutex_lock(&gpio_aggregator_lock); aggr = idr_remove(&gpio_aggregator_idr, id); mutex_unlock(&gpio_aggregator_lock); - if (!aggr) + if (!aggr) { + module_put(THIS_MODULE); return -ENOENT; + } gpio_aggregator_free(aggr); + module_put(THIS_MODULE); return count; } static DRIVER_ATTR_WO(delete_device); diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index 6159fda38d5d..6641ed5cd8e1 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -40,7 +40,7 @@ struct gpio_rcar_info { struct gpio_rcar_priv { void __iomem *base; - spinlock_t lock; + raw_spinlock_t lock; struct device *dev; struct gpio_chip gpio_chip; unsigned int irq_parent; @@ -123,7 +123,7 @@ static void gpio_rcar_config_interrupt_input_mode(struct gpio_rcar_priv *p, * "Setting Level-Sensitive Interrupt Input Mode" */ - spin_lock_irqsave(&p->lock, flags); + raw_spin_lock_irqsave(&p->lock, flags); /* Configure positive or negative logic in POSNEG */ gpio_rcar_modify_bit(p, POSNEG, hwirq, !active_high_rising_edge); @@ -142,7 +142,7 @@ static void gpio_rcar_config_interrupt_input_mode(struct gpio_rcar_priv *p, if (!level_trigger) gpio_rcar_write(p, INTCLR, BIT(hwirq)); - spin_unlock_irqrestore(&p->lock, flags); + raw_spin_unlock_irqrestore(&p->lock, flags); } static int gpio_rcar_irq_set_type(struct irq_data *d, unsigned int type) @@ -246,7 +246,7 @@ static void gpio_rcar_config_general_input_output_mode(struct gpio_chip *chip, * "Setting General Input Mode" */ - spin_lock_irqsave(&p->lock, flags); + raw_spin_lock_irqsave(&p->lock, flags); /* Configure positive logic in POSNEG */ gpio_rcar_modify_bit(p, POSNEG, gpio, false); @@ -261,7 +261,7 @@ static void gpio_rcar_config_general_input_output_mode(struct gpio_chip *chip, if (p->info.has_outdtsel && output) gpio_rcar_modify_bit(p, OUTDTSEL, gpio, false); - spin_unlock_irqrestore(&p->lock, flags); + raw_spin_unlock_irqrestore(&p->lock, flags); } static int gpio_rcar_request(struct gpio_chip *chip, unsigned offset) @@ -347,7 +347,7 @@ static int gpio_rcar_get_multiple(struct gpio_chip *chip, unsigned long *mask, return 0; } - spin_lock_irqsave(&p->lock, flags); + raw_spin_lock_irqsave(&p->lock, flags); outputs = gpio_rcar_read(p, INOUTSEL); m = outputs & bankmask; if (m) @@ -356,7 +356,7 @@ static int gpio_rcar_get_multiple(struct gpio_chip *chip, unsigned long *mask, m = ~outputs & bankmask; if (m) val |= gpio_rcar_read(p, INDT) & m; - spin_unlock_irqrestore(&p->lock, flags); + raw_spin_unlock_irqrestore(&p->lock, flags); bits[0] = val; return 0; @@ -367,9 +367,9 @@ static void gpio_rcar_set(struct gpio_chip *chip, unsigned offset, int value) struct gpio_rcar_priv *p = gpiochip_get_data(chip); unsigned long flags; - spin_lock_irqsave(&p->lock, flags); + raw_spin_lock_irqsave(&p->lock, flags); gpio_rcar_modify_bit(p, OUTDT, offset, value); - spin_unlock_irqrestore(&p->lock, flags); + raw_spin_unlock_irqrestore(&p->lock, flags); } static void gpio_rcar_set_multiple(struct gpio_chip *chip, unsigned long *mask, @@ -386,12 +386,12 @@ static void gpio_rcar_set_multiple(struct gpio_chip *chip, unsigned long *mask, if (!bankmask) return; - spin_lock_irqsave(&p->lock, flags); + raw_spin_lock_irqsave(&p->lock, flags); val = gpio_rcar_read(p, OUTDT); val &= ~bankmask; val |= (bankmask & bits[0]); gpio_rcar_write(p, OUTDT, val); - spin_unlock_irqrestore(&p->lock, flags); + raw_spin_unlock_irqrestore(&p->lock, flags); } static int gpio_rcar_direction_output(struct gpio_chip *chip, unsigned offset, @@ -468,7 +468,12 @@ static int gpio_rcar_parse_dt(struct gpio_rcar_priv *p, unsigned int *npins) p->info = *info; ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &args); - *npins = ret == 0 ? args.args[2] : RCAR_MAX_GPIO_PER_BANK; + if (ret) { + *npins = RCAR_MAX_GPIO_PER_BANK; + } else { + *npins = args.args[2]; + of_node_put(args.np); + } if (*npins == 0 || *npins > RCAR_MAX_GPIO_PER_BANK) { dev_warn(p->dev, "Invalid number of gpio lines %u, using %u\n", @@ -505,7 +510,7 @@ static int gpio_rcar_probe(struct platform_device *pdev) return -ENOMEM; p->dev = dev; - spin_lock_init(&p->lock); + raw_spin_lock_init(&p->lock); /* Get device configuration from DT node */ ret = gpio_rcar_parse_dt(p, &npins); diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c index 27eff741fe9a..c36a9dbccd4d 100644 --- a/drivers/gpio/gpio-vf610.c +++ b/drivers/gpio/gpio-vf610.c @@ -15,10 +15,9 @@ #include <linux/io.h> #include <linux/ioport.h> #include <linux/irq.h> -#include <linux/platform_device.h> -#include <linux/of.h> -#include <linux/of_irq.h> #include <linux/pinctrl/consumer.h> +#include <linux/platform_device.h> +#include <linux/property.h> #define VF610_GPIO_PER_PORT 32 @@ -37,6 +36,7 @@ struct vf610_gpio_port { struct clk *clk_port; struct clk *clk_gpio; int irq; + spinlock_t lock; /* protect gpio direction registers */ }; #define GPIO_PDOR 0x00 @@ -125,6 +125,7 @@ static int vf610_gpio_direction_input(struct gpio_chip *chip, unsigned int gpio) u32 val; if (port->sdata->have_paddr) { + guard(spinlock_irqsave)(&port->lock); val = vf610_gpio_readl(port->gpio_base + GPIO_PDDR); val &= ~mask; vf610_gpio_writel(val, port->gpio_base + GPIO_PDDR); @@ -143,6 +144,7 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned int gpio vf610_gpio_set(chip, gpio, value); if (port->sdata->have_paddr) { + guard(spinlock_irqsave)(&port->lock); val = vf610_gpio_readl(port->gpio_base + GPIO_PDDR); val |= mask; vf610_gpio_writel(val, port->gpio_base + GPIO_PDDR); @@ -297,7 +299,8 @@ static int vf610_gpio_probe(struct platform_device *pdev) if (!port) return -ENOMEM; - port->sdata = of_device_get_match_data(dev); + port->sdata = device_get_match_data(dev); + spin_lock_init(&port->lock); dual_base = port->sdata->have_dual_base; diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 7408ea8caacc..ae53f26da945 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -211,6 +211,18 @@ config DRM_DEBUG_MODESET_LOCK If in doubt, say "N". +config DRM_CLIENT_SELECTION + bool + depends on DRM + select DRM_CLIENT_SETUP if DRM_FBDEV_EMULATION + help + Drivers that support in-kernel DRM clients have to select this + option. + +config DRM_CLIENT_SETUP + bool + depends on DRM_CLIENT_SELECTION + config DRM_FBDEV_EMULATION bool "Enable legacy fbdev support for your modesetting driver" depends on DRM diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 84746054c721..1ec44529447a 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -144,8 +144,12 @@ drm_kms_helper-y := \ drm_rect.o \ drm_self_refresh_helper.o \ drm_simple_kms_helper.o +drm_kms_helper-$(CONFIG_DRM_CLIENT_SETUP) += \ + drm_client_setup.o drm_kms_helper-$(CONFIG_DRM_PANEL_BRIDGE) += bridge/panel.o -drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o +drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += \ + drm_fbdev_client.o \ + drm_fb_helper.o obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o # diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_queue.c index ad29634f8b44..80c85b6cc478 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_queue.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_queue.c @@ -266,8 +266,8 @@ int kfd_queue_acquire_buffers(struct kfd_process_device *pdd, struct queue_prope /* EOP buffer is not required for all ASICs */ if (properties->eop_ring_buffer_address) { if (properties->eop_ring_buffer_size != topo_dev->node_props.eop_buffer_size) { - pr_debug("queue eop bo size 0x%lx not equal to node eop buf size 0x%x\n", - properties->eop_buf_bo->tbo.base.size, + pr_debug("queue eop bo size 0x%x not equal to node eop buf size 0x%x\n", + properties->eop_ring_buffer_size, topo_dev->node_props.eop_buffer_size); err = -EINVAL; goto out_err_unreserve; diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index d915020a4295..f0eda0ba0156 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1455,7 +1455,8 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx) DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger); /* Invalid input */ - if (!plane_state->dst_rect.width || + if (!plane_state || + !plane_state->dst_rect.width || !plane_state->dst_rect.height || !plane_state->src_rect.width || !plane_state->src_rect.height) { diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c index 452589adaf04..e5f619c979d8 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c @@ -1883,16 +1883,6 @@ static int smu_v14_0_allow_ih_interrupt(struct smu_context *smu) NULL); } -static int smu_v14_0_process_pending_interrupt(struct smu_context *smu) -{ - int ret = 0; - - if (smu_cmn_feature_is_enabled(smu, SMU_FEATURE_ACDC_BIT)) - ret = smu_v14_0_allow_ih_interrupt(smu); - - return ret; -} - int smu_v14_0_enable_thermal_alert(struct smu_context *smu) { int ret = 0; @@ -1904,7 +1894,7 @@ int smu_v14_0_enable_thermal_alert(struct smu_context *smu) if (ret) return ret; - return smu_v14_0_process_pending_interrupt(smu); + return smu_v14_0_allow_ih_interrupt(smu); } int smu_v14_0_disable_thermal_alert(struct smu_context *smu) diff --git a/drivers/gpu/drm/drm_client_setup.c b/drivers/gpu/drm/drm_client_setup.c new file mode 100644 index 000000000000..5969c4ffe31b --- /dev/null +++ b/drivers/gpu/drm/drm_client_setup.c @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: MIT + +#include <drm/drm_client_setup.h> +#include <drm/drm_device.h> +#include <drm/drm_fbdev_client.h> +#include <drm/drm_fourcc.h> +#include <drm/drm_print.h> + +/** + * drm_client_setup() - Setup in-kernel DRM clients + * @dev: DRM device + * @format: Preferred pixel format for the device. Use NULL, unless + * there is clearly a driver-preferred format. + * + * This function sets up the in-kernel DRM clients. Restore, hotplug + * events and teardown are all taken care of. + * + * Drivers should call drm_client_setup() after registering the new + * DRM device with drm_dev_register(). This function is safe to call + * even when there are no connectors present. Setup will be retried + * on the next hotplug event. + * + * The clients are destroyed by drm_dev_unregister(). + */ +void drm_client_setup(struct drm_device *dev, const struct drm_format_info *format) +{ + int ret; + + ret = drm_fbdev_client_setup(dev, format); + if (ret) + drm_warn(dev, "Failed to set up DRM client; error %d\n", ret); +} +EXPORT_SYMBOL(drm_client_setup); + +/** + * drm_client_setup_with_fourcc() - Setup in-kernel DRM clients for color mode + * @dev: DRM device + * @fourcc: Preferred pixel format as 4CC code for the device + * + * This function sets up the in-kernel DRM clients. It is equivalent + * to drm_client_setup(), but expects a 4CC code as second argument. + */ +void drm_client_setup_with_fourcc(struct drm_device *dev, u32 fourcc) +{ + drm_client_setup(dev, drm_format_info(fourcc)); +} +EXPORT_SYMBOL(drm_client_setup_with_fourcc); + +/** + * drm_client_setup_with_color_mode() - Setup in-kernel DRM clients for color mode + * @dev: DRM device + * @color_mode: Preferred color mode for the device + * + * This function sets up the in-kernel DRM clients. It is equivalent + * to drm_client_setup(), but expects a color mode as second argument. + * + * Do not use this function in new drivers. Prefer drm_client_setup() with a + * format of NULL. + */ +void drm_client_setup_with_color_mode(struct drm_device *dev, unsigned int color_mode) +{ + u32 fourcc = drm_driver_color_mode_format(dev, color_mode); + + drm_client_setup_with_fourcc(dev, fourcc); +} +EXPORT_SYMBOL(drm_client_setup_with_color_mode); diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index eaac2e5726e7..b15ddbd65e7b 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -492,8 +492,8 @@ EXPORT_SYMBOL(drm_fb_helper_init); * @fb_helper: driver-allocated fbdev helper * * A helper to alloc fb_info and the member cmap. Called by the driver - * within the fb_probe fb_helper callback function. Drivers do not - * need to release the allocated fb_info structure themselves, this is + * within the struct &drm_driver.fbdev_probe callback function. Drivers do + * not need to release the allocated fb_info structure themselves, this is * automatically done when calling drm_fb_helper_fini(). * * RETURNS: @@ -1443,67 +1443,27 @@ int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, EXPORT_SYMBOL(drm_fb_helper_pan_display); static uint32_t drm_fb_helper_find_format(struct drm_fb_helper *fb_helper, const uint32_t *formats, - size_t format_count, uint32_t bpp, uint32_t depth) + size_t format_count, unsigned int color_mode) { struct drm_device *dev = fb_helper->dev; uint32_t format; size_t i; - /* - * Do not consider YUV or other complicated formats - * for framebuffers. This means only legacy formats - * are supported (fmt->depth is a legacy field), but - * the framebuffer emulation can only deal with such - * formats, specifically RGB/BGA formats. - */ - format = drm_mode_legacy_fb_format(bpp, depth); - if (!format) - goto err; + format = drm_driver_color_mode_format(dev, color_mode); + if (!format) { + drm_info(dev, "unsupported color mode of %d\n", color_mode); + return DRM_FORMAT_INVALID; + } for (i = 0; i < format_count; ++i) { if (formats[i] == format) return format; } - -err: - /* We found nothing. */ - drm_warn(dev, "bpp/depth value of %u/%u not supported\n", bpp, depth); + drm_warn(dev, "format %p4cc not supported\n", &format); return DRM_FORMAT_INVALID; } -static uint32_t drm_fb_helper_find_color_mode_format(struct drm_fb_helper *fb_helper, - const uint32_t *formats, size_t format_count, - unsigned int color_mode) -{ - struct drm_device *dev = fb_helper->dev; - uint32_t bpp, depth; - - switch (color_mode) { - case 1: - case 2: - case 4: - case 8: - case 16: - case 24: - bpp = depth = color_mode; - break; - case 15: - bpp = 16; - depth = 15; - break; - case 32: - bpp = 32; - depth = 24; - break; - default: - drm_info(dev, "unsupported color mode of %d\n", color_mode); - return DRM_FORMAT_INVALID; - } - - return drm_fb_helper_find_format(fb_helper, formats, format_count, bpp, depth); -} - static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, struct drm_fb_helper_surface_size *sizes) { @@ -1533,10 +1493,10 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, if (!cmdline_mode->bpp_specified) continue; - surface_format = drm_fb_helper_find_color_mode_format(fb_helper, - plane->format_types, - plane->format_count, - cmdline_mode->bpp); + surface_format = drm_fb_helper_find_format(fb_helper, + plane->format_types, + plane->format_count, + cmdline_mode->bpp); if (surface_format != DRM_FORMAT_INVALID) break; /* found supported format */ } @@ -1546,10 +1506,10 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, break; /* found supported format */ /* try preferred color mode */ - surface_format = drm_fb_helper_find_color_mode_format(fb_helper, - plane->format_types, - plane->format_count, - fb_helper->preferred_bpp); + surface_format = drm_fb_helper_find_format(fb_helper, + plane->format_types, + plane->format_count, + fb_helper->preferred_bpp); if (surface_format != DRM_FORMAT_INVALID) break; /* found supported format */ } @@ -1650,7 +1610,7 @@ static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, /* * Allocates the backing storage and sets up the fbdev info structure through - * the ->fb_probe callback. + * the ->fbdev_probe callback. */ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper) { @@ -1668,7 +1628,10 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper) } /* push down into drivers */ - ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes); + if (dev->driver->fbdev_probe) + ret = dev->driver->fbdev_probe(fb_helper, &sizes); + else if (fb_helper->funcs) + ret = fb_helper->funcs->fb_probe(fb_helper, &sizes); if (ret < 0) return ret; @@ -1740,7 +1703,7 @@ static void drm_fb_helper_fill_var(struct fb_info *info, * instance and the drm framebuffer allocated in &drm_fb_helper.fb. * * Drivers should call this (or their equivalent setup code) from their - * &drm_fb_helper_funcs.fb_probe callback after having allocated the fbdev + * &drm_driver.fbdev_probe callback after having allocated the fbdev * backing storage framebuffer. */ void drm_fb_helper_fill_info(struct fb_info *info, @@ -1896,7 +1859,7 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper) * Note that this also registers the fbdev and so allows userspace to call into * the driver through the fbdev interfaces. * - * This function will call down into the &drm_fb_helper_funcs.fb_probe callback + * This function will call down into the &drm_driver.fbdev_probe callback * to let the driver allocate and initialize the fbdev info structure and the * drm framebuffer used to back the fbdev. drm_fb_helper_fill_info() is provided * as a helper to setup simple default values for the fbdev info structure. diff --git a/drivers/gpu/drm/drm_fbdev_client.c b/drivers/gpu/drm/drm_fbdev_client.c new file mode 100644 index 000000000000..a09382afe2fb --- /dev/null +++ b/drivers/gpu/drm/drm_fbdev_client.c @@ -0,0 +1,141 @@ +// SPDX-License-Identifier: MIT + +#include <drm/drm_client.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_drv.h> +#include <drm/drm_fbdev_client.h> +#include <drm/drm_fb_helper.h> +#include <drm/drm_fourcc.h> +#include <drm/drm_print.h> + +/* + * struct drm_client_funcs + */ + +static void drm_fbdev_client_unregister(struct drm_client_dev *client) +{ + struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); + + if (fb_helper->info) { + drm_fb_helper_unregister_info(fb_helper); + } else { + drm_client_release(&fb_helper->client); + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); + } +} + +static int drm_fbdev_client_restore(struct drm_client_dev *client) +{ + drm_fb_helper_lastclose(client->dev); + + return 0; +} + +static int drm_fbdev_client_hotplug(struct drm_client_dev *client) +{ + struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); + struct drm_device *dev = client->dev; + int ret; + + if (dev->fb_helper) + return drm_fb_helper_hotplug_event(dev->fb_helper); + + ret = drm_fb_helper_init(dev, fb_helper); + if (ret) + goto err_drm_err; + + if (!drm_drv_uses_atomic_modeset(dev)) + drm_helper_disable_unused_functions(dev); + + ret = drm_fb_helper_initial_config(fb_helper); + if (ret) + goto err_drm_fb_helper_fini; + + return 0; + +err_drm_fb_helper_fini: + drm_fb_helper_fini(fb_helper); +err_drm_err: + drm_err(dev, "fbdev: Failed to setup emulation (ret=%d)\n", ret); + return ret; +} + +static const struct drm_client_funcs drm_fbdev_client_funcs = { + .owner = THIS_MODULE, + .unregister = drm_fbdev_client_unregister, + .restore = drm_fbdev_client_restore, + .hotplug = drm_fbdev_client_hotplug, +}; + +/** + * drm_fbdev_client_setup() - Setup fbdev emulation + * @dev: DRM device + * @format: Preferred color format for the device. DRM_FORMAT_XRGB8888 + * is used if this is zero. + * + * This function sets up fbdev emulation. Restore, hotplug events and + * teardown are all taken care of. Drivers that do suspend/resume need + * to call drm_fb_helper_set_suspend_unlocked() themselves. Simple + * drivers might use drm_mode_config_helper_suspend(). + * + * This function is safe to call even when there are no connectors present. + * Setup will be retried on the next hotplug event. + * + * The fbdev client is destroyed by drm_dev_unregister(). + * + * Returns: + * 0 on success, or a negative errno code otherwise. + */ +int drm_fbdev_client_setup(struct drm_device *dev, const struct drm_format_info *format) +{ + struct drm_fb_helper *fb_helper; + unsigned int color_mode; + int ret; + + /* TODO: Use format info throughout DRM */ + if (format) { + unsigned int bpp = drm_format_info_bpp(format, 0); + + switch (bpp) { + case 16: + color_mode = format->depth; // could also be 15 + break; + default: + color_mode = bpp; + } + } else { + switch (dev->mode_config.preferred_depth) { + case 0: + case 24: + color_mode = 32; + break; + default: + color_mode = dev->mode_config.preferred_depth; + } + } + + drm_WARN(dev, !dev->registered, "Device has not been registered.\n"); + drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n"); + + fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL); + if (!fb_helper) + return -ENOMEM; + drm_fb_helper_prepare(dev, fb_helper, color_mode, NULL); + + ret = drm_client_init(dev, &fb_helper->client, "fbdev", &drm_fbdev_client_funcs); + if (ret) { + drm_err(dev, "Failed to register client: %d\n", ret); + goto err_drm_client_init; + } + + drm_client_register(&fb_helper->client); + + return 0; + +err_drm_client_init: + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); + return ret; +} +EXPORT_SYMBOL(drm_fbdev_client_setup); diff --git a/drivers/gpu/drm/drm_fbdev_ttm.c b/drivers/gpu/drm/drm_fbdev_ttm.c index 119ffb28aaf9..d799cbe944cd 100644 --- a/drivers/gpu/drm/drm_fbdev_ttm.c +++ b/drivers/gpu/drm/drm_fbdev_ttm.c @@ -71,71 +71,7 @@ static const struct fb_ops drm_fbdev_ttm_fb_ops = { static int drm_fbdev_ttm_helper_fb_probe(struct drm_fb_helper *fb_helper, struct drm_fb_helper_surface_size *sizes) { - struct drm_client_dev *client = &fb_helper->client; - struct drm_device *dev = fb_helper->dev; - struct drm_client_buffer *buffer; - struct fb_info *info; - size_t screen_size; - void *screen_buffer; - u32 format; - int ret; - - drm_dbg_kms(dev, "surface width(%d), height(%d) and bpp(%d)\n", - sizes->surface_width, sizes->surface_height, - sizes->surface_bpp); - - format = drm_driver_legacy_fb_format(dev, sizes->surface_bpp, - sizes->surface_depth); - buffer = drm_client_framebuffer_create(client, sizes->surface_width, - sizes->surface_height, format); - if (IS_ERR(buffer)) - return PTR_ERR(buffer); - - fb_helper->buffer = buffer; - fb_helper->fb = buffer->fb; - - screen_size = buffer->gem->size; - screen_buffer = vzalloc(screen_size); - if (!screen_buffer) { - ret = -ENOMEM; - goto err_drm_client_framebuffer_delete; - } - - info = drm_fb_helper_alloc_info(fb_helper); - if (IS_ERR(info)) { - ret = PTR_ERR(info); - goto err_vfree; - } - - drm_fb_helper_fill_info(info, fb_helper, sizes); - - info->fbops = &drm_fbdev_ttm_fb_ops; - - /* screen */ - info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST; - info->screen_buffer = screen_buffer; - info->fix.smem_len = screen_size; - - /* deferred I/O */ - fb_helper->fbdefio.delay = HZ / 20; - fb_helper->fbdefio.deferred_io = drm_fb_helper_deferred_io; - - info->fbdefio = &fb_helper->fbdefio; - ret = fb_deferred_io_init(info); - if (ret) - goto err_drm_fb_helper_release_info; - - return 0; - -err_drm_fb_helper_release_info: - drm_fb_helper_release_info(fb_helper); -err_vfree: - vfree(screen_buffer); -err_drm_client_framebuffer_delete: - fb_helper->fb = NULL; - fb_helper->buffer = NULL; - drm_client_framebuffer_delete(buffer); - return ret; + return drm_fbdev_ttm_driver_fbdev_probe(fb_helper, sizes); } static void drm_fbdev_ttm_damage_blit_real(struct drm_fb_helper *fb_helper, @@ -240,6 +176,82 @@ static const struct drm_fb_helper_funcs drm_fbdev_ttm_helper_funcs = { .fb_dirty = drm_fbdev_ttm_helper_fb_dirty, }; +/* + * struct drm_driver + */ + +int drm_fbdev_ttm_driver_fbdev_probe(struct drm_fb_helper *fb_helper, + struct drm_fb_helper_surface_size *sizes) +{ + struct drm_client_dev *client = &fb_helper->client; + struct drm_device *dev = fb_helper->dev; + struct drm_client_buffer *buffer; + struct fb_info *info; + size_t screen_size; + void *screen_buffer; + u32 format; + int ret; + + drm_dbg_kms(dev, "surface width(%d), height(%d) and bpp(%d)\n", + sizes->surface_width, sizes->surface_height, + sizes->surface_bpp); + + format = drm_driver_legacy_fb_format(dev, sizes->surface_bpp, + sizes->surface_depth); + buffer = drm_client_framebuffer_create(client, sizes->surface_width, + sizes->surface_height, format); + if (IS_ERR(buffer)) + return PTR_ERR(buffer); + + fb_helper->funcs = &drm_fbdev_ttm_helper_funcs; + fb_helper->buffer = buffer; + fb_helper->fb = buffer->fb; + + screen_size = buffer->gem->size; + screen_buffer = vzalloc(screen_size); + if (!screen_buffer) { + ret = -ENOMEM; + goto err_drm_client_framebuffer_delete; + } + + info = drm_fb_helper_alloc_info(fb_helper); + if (IS_ERR(info)) { + ret = PTR_ERR(info); + goto err_vfree; + } + + drm_fb_helper_fill_info(info, fb_helper, sizes); + + info->fbops = &drm_fbdev_ttm_fb_ops; + + /* screen */ + info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST; + info->screen_buffer = screen_buffer; + info->fix.smem_len = screen_size; + + /* deferred I/O */ + fb_helper->fbdefio.delay = HZ / 20; + fb_helper->fbdefio.deferred_io = drm_fb_helper_deferred_io; + + info->fbdefio = &fb_helper->fbdefio; + ret = fb_deferred_io_init(info); + if (ret) + goto err_drm_fb_helper_release_info; + + return 0; + +err_drm_fb_helper_release_info: + drm_fb_helper_release_info(fb_helper); +err_vfree: + vfree(screen_buffer); +err_drm_client_framebuffer_delete: + fb_helper->fb = NULL; + fb_helper->buffer = NULL; + drm_client_framebuffer_delete(buffer); + return ret; +} +EXPORT_SYMBOL(drm_fbdev_ttm_driver_fbdev_probe); + static void drm_fbdev_ttm_client_unregister(struct drm_client_dev *client) { struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index 193cf8ed7912..3a94ca211f9c 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -36,7 +36,6 @@ * @depth: bit depth per pixel * * Computes a drm fourcc pixel format code for the given @bpp/@depth values. - * Useful in fbdev emulation code, since that deals in those values. */ uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) { @@ -140,6 +139,35 @@ uint32_t drm_driver_legacy_fb_format(struct drm_device *dev, } EXPORT_SYMBOL(drm_driver_legacy_fb_format); +/** + * drm_driver_color_mode_format - Compute DRM 4CC code from color mode + * @dev: DRM device + * @color_mode: command-line color mode + * + * Computes a DRM 4CC pixel format code for the given color mode using + * drm_driver_color_mode(). The color mode is in the format used and the + * kernel command line. It specifies the number of bits per pixel + * and color depth in a single value. + * + * Useful in fbdev emulation code, since that deals in those values. The + * helper does not consider YUV or other complicated formats. This means + * only legacy formats are supported (fmt->depth is a legacy field), but + * the framebuffer emulation can only deal with such formats, specifically + * RGB/BGA formats. + */ +uint32_t drm_driver_color_mode_format(struct drm_device *dev, unsigned int color_mode) +{ + switch (color_mode) { + case 15: + return drm_driver_legacy_fb_format(dev, 16, 15); + case 32: + return drm_driver_legacy_fb_format(dev, 32, 24); + default: + return drm_driver_legacy_fb_format(dev, color_mode, color_mode); + } +} +EXPORT_SYMBOL(drm_driver_color_mode_format); + /* * Internal function to query information for a given format. See * drm_format_info() for the public API. diff --git a/drivers/gpu/drm/drm_panic_qr.rs b/drivers/gpu/drm/drm_panic_qr.rs index 447740d79d3d..bcf248f69252 100644 --- a/drivers/gpu/drm/drm_panic_qr.rs +++ b/drivers/gpu/drm/drm_panic_qr.rs @@ -209,12 +209,9 @@ impl Version { /// Returns the smallest QR version than can hold these segments. fn from_segments(segments: &[&Segment<'_>]) -> Option<Version> { - for v in (1..=40).map(|k| Version(k)) { - if v.max_data() * 8 >= segments.iter().map(|s| s.total_size_bits(v)).sum() { - return Some(v); - } - } - None + (1..=40) + .map(Version) + .find(|&v| v.max_data() * 8 >= segments.iter().map(|s| s.total_size_bits(v)).sum()) } fn width(&self) -> u8 { @@ -242,7 +239,7 @@ fn g1_blk_size(&self) -> usize { } fn alignment_pattern(&self) -> &'static [u8] { - &ALIGNMENT_PATTERNS[self.0 - 1] + ALIGNMENT_PATTERNS[self.0 - 1] } fn poly(&self) -> &'static [u8] { @@ -479,7 +476,7 @@ struct EncodedMsg<'a> { /// Data to be put in the QR code, with correct segment encoding, padding, and /// Error Code Correction. impl EncodedMsg<'_> { - fn new<'a, 'b>(segments: &[&Segment<'b>], data: &'a mut [u8]) -> Option<EncodedMsg<'a>> { + fn new<'a>(segments: &[&Segment<'_>], data: &'a mut [u8]) -> Option<EncodedMsg<'a>> { let version = Version::from_segments(segments)?; let ec_size = version.ec_size(); let g1_blocks = version.g1_blocks(); @@ -492,7 +489,7 @@ fn new<'a, 'b>(segments: &[&Segment<'b>], data: &'a mut [u8]) -> Option<EncodedM data.fill(0); let mut em = EncodedMsg { - data: data, + data, ec_size, g1_blocks, g2_blocks, @@ -722,7 +719,10 @@ fn draw_finders(&mut self) { fn is_finder(&self, x: u8, y: u8) -> bool { let end = self.width - 8; - (x < 8 && y < 8) || (x < 8 && y >= end) || (x >= end && y < 8) + #[expect(clippy::nonminimal_bool)] + { + (x < 8 && y < 8) || (x < 8 && y >= end) || (x >= end && y < 8) + } } // Alignment pattern: 5x5 squares in a grid. @@ -931,7 +931,7 @@ fn draw_all(&mut self, data: impl Iterator<Item = u8>) { /// They must remain valid for the duration of the function call. #[no_mangle] pub unsafe extern "C" fn drm_panic_qr_generate( - url: *const i8, + url: *const kernel::ffi::c_char, data: *mut u8, data_len: usize, data_size: usize, @@ -978,10 +978,11 @@ fn draw_all(&mut self, data: impl Iterator<Item = u8>) { /// * `url_len`: Length of the URL. /// /// * If `url_len` > 0, remove the 2 segments header/length and also count the -/// conversion to numeric segments. +/// conversion to numeric segments. /// * If `url_len` = 0, only removes 3 bytes for 1 binary segment. #[no_mangle] pub extern "C" fn drm_panic_qr_max_data_size(version: u8, url_len: usize) -> usize { + #[expect(clippy::manual_range_contains)] if version < 1 || version > 40 { return 0; } diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c b/drivers/gpu/drm/i915/display/i9xx_plane.c index 9447f7229b60..17a1e3801a85 100644 --- a/drivers/gpu/drm/i915/display/i9xx_plane.c +++ b/drivers/gpu/drm/i915/display/i9xx_plane.c @@ -416,7 +416,8 @@ static int i9xx_plane_min_cdclk(const struct intel_crtc_state *crtc_state, return DIV_ROUND_UP(pixel_rate * num, den); } -static void i9xx_plane_update_noarm(struct intel_plane *plane, +static void i9xx_plane_update_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -444,7 +445,8 @@ static void i9xx_plane_update_noarm(struct intel_plane *plane, } } -static void i9xx_plane_update_arm(struct intel_plane *plane, +static void i9xx_plane_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -507,7 +509,8 @@ static void i9xx_plane_update_arm(struct intel_plane *plane, intel_plane_ggtt_offset(plane_state) + dspaddr_offset); } -static void i830_plane_update_arm(struct intel_plane *plane, +static void i830_plane_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -517,11 +520,12 @@ static void i830_plane_update_arm(struct intel_plane *plane, * Additional breakage on i830 causes register reads to return * the last latched value instead of the last written value [ALM026]. */ - i9xx_plane_update_noarm(plane, crtc_state, plane_state); - i9xx_plane_update_arm(plane, crtc_state, plane_state); + i9xx_plane_update_noarm(dsb, plane, crtc_state, plane_state); + i9xx_plane_update_arm(dsb, plane, crtc_state, plane_state); } -static void i9xx_plane_disable_arm(struct intel_plane *plane, +static void i9xx_plane_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); @@ -549,7 +553,8 @@ static void i9xx_plane_disable_arm(struct intel_plane *plane, } static void -g4x_primary_async_flip(struct intel_plane *plane, +g4x_primary_async_flip(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, bool async_flip) @@ -569,7 +574,8 @@ g4x_primary_async_flip(struct intel_plane *plane, } static void -vlv_primary_async_flip(struct intel_plane *plane, +vlv_primary_async_flip(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, bool async_flip) diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c index 293efc1f841d..4e95b8eda23f 100644 --- a/drivers/gpu/drm/i915/display/icl_dsi.c +++ b/drivers/gpu/drm/i915/display/icl_dsi.c @@ -50,38 +50,38 @@ #include "skl_scaler.h" #include "skl_universal_plane.h" -static int header_credits_available(struct drm_i915_private *dev_priv, +static int header_credits_available(struct intel_display *display, enum transcoder dsi_trans) { - return (intel_de_read(dev_priv, DSI_CMD_TXCTL(dsi_trans)) & FREE_HEADER_CREDIT_MASK) + return (intel_de_read(display, DSI_CMD_TXCTL(dsi_trans)) & FREE_HEADER_CREDIT_MASK) >> FREE_HEADER_CREDIT_SHIFT; } -static int payload_credits_available(struct drm_i915_private *dev_priv, +static int payload_credits_available(struct intel_display *display, enum transcoder dsi_trans) { - return (intel_de_read(dev_priv, DSI_CMD_TXCTL(dsi_trans)) & FREE_PLOAD_CREDIT_MASK) + return (intel_de_read(display, DSI_CMD_TXCTL(dsi_trans)) & FREE_PLOAD_CREDIT_MASK) >> FREE_PLOAD_CREDIT_SHIFT; } -static bool wait_for_header_credits(struct drm_i915_private *dev_priv, +static bool wait_for_header_credits(struct intel_display *display, enum transcoder dsi_trans, int hdr_credit) { - if (wait_for_us(header_credits_available(dev_priv, dsi_trans) >= + if (wait_for_us(header_credits_available(display, dsi_trans) >= hdr_credit, 100)) { - drm_err(&dev_priv->drm, "DSI header credits not released\n"); + drm_err(display->drm, "DSI header credits not released\n"); return false; } return true; } -static bool wait_for_payload_credits(struct drm_i915_private *dev_priv, +static bool wait_for_payload_credits(struct intel_display *display, enum transcoder dsi_trans, int payld_credit) { - if (wait_for_us(payload_credits_available(dev_priv, dsi_trans) >= + if (wait_for_us(payload_credits_available(display, dsi_trans) >= payld_credit, 100)) { - drm_err(&dev_priv->drm, "DSI payload credits not released\n"); + drm_err(display->drm, "DSI payload credits not released\n"); return false; } @@ -98,7 +98,7 @@ static enum transcoder dsi_port_to_transcoder(enum port port) static void wait_for_cmds_dispatched_to_panel(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); struct mipi_dsi_device *dsi; enum port port; @@ -108,8 +108,8 @@ static void wait_for_cmds_dispatched_to_panel(struct intel_encoder *encoder) /* wait for header/payload credits to be released */ for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - wait_for_header_credits(dev_priv, dsi_trans, MAX_HEADER_CREDIT); - wait_for_payload_credits(dev_priv, dsi_trans, MAX_PLOAD_CREDIT); + wait_for_header_credits(display, dsi_trans, MAX_HEADER_CREDIT); + wait_for_payload_credits(display, dsi_trans, MAX_PLOAD_CREDIT); } /* send nop DCS command */ @@ -119,22 +119,22 @@ static void wait_for_cmds_dispatched_to_panel(struct intel_encoder *encoder) dsi->channel = 0; ret = mipi_dsi_dcs_nop(dsi); if (ret < 0) - drm_err(&dev_priv->drm, + drm_err(display->drm, "error sending DCS NOP command\n"); } /* wait for header credits to be released */ for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - wait_for_header_credits(dev_priv, dsi_trans, MAX_HEADER_CREDIT); + wait_for_header_credits(display, dsi_trans, MAX_HEADER_CREDIT); } /* wait for LP TX in progress bit to be cleared */ for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - if (wait_for_us(!(intel_de_read(dev_priv, DSI_LP_MSG(dsi_trans)) & + if (wait_for_us(!(intel_de_read(display, DSI_LP_MSG(dsi_trans)) & LPTX_IN_PROGRESS), 20)) - drm_err(&dev_priv->drm, "LPTX bit not cleared\n"); + drm_err(display->drm, "LPTX bit not cleared\n"); } } @@ -142,7 +142,7 @@ static int dsi_send_pkt_payld(struct intel_dsi_host *host, const struct mipi_dsi_packet *packet) { struct intel_dsi *intel_dsi = host->intel_dsi; - struct drm_i915_private *i915 = to_i915(intel_dsi->base.base.dev); + struct intel_display *display = to_intel_display(&intel_dsi->base); enum transcoder dsi_trans = dsi_port_to_transcoder(host->port); const u8 *data = packet->payload; u32 len = packet->payload_length; @@ -150,20 +150,20 @@ static int dsi_send_pkt_payld(struct intel_dsi_host *host, /* payload queue can accept *256 bytes*, check limit */ if (len > MAX_PLOAD_CREDIT * 4) { - drm_err(&i915->drm, "payload size exceeds max queue limit\n"); + drm_err(display->drm, "payload size exceeds max queue limit\n"); return -EINVAL; } for (i = 0; i < len; i += 4) { u32 tmp = 0; - if (!wait_for_payload_credits(i915, dsi_trans, 1)) + if (!wait_for_payload_credits(display, dsi_trans, 1)) return -EBUSY; for (j = 0; j < min_t(u32, len - i, 4); j++) tmp |= *data++ << 8 * j; - intel_de_write(i915, DSI_CMD_TXPYLD(dsi_trans), tmp); + intel_de_write(display, DSI_CMD_TXPYLD(dsi_trans), tmp); } return 0; @@ -174,14 +174,14 @@ static int dsi_send_pkt_hdr(struct intel_dsi_host *host, bool enable_lpdt) { struct intel_dsi *intel_dsi = host->intel_dsi; - struct drm_i915_private *dev_priv = to_i915(intel_dsi->base.base.dev); + struct intel_display *display = to_intel_display(&intel_dsi->base); enum transcoder dsi_trans = dsi_port_to_transcoder(host->port); u32 tmp; - if (!wait_for_header_credits(dev_priv, dsi_trans, 1)) + if (!wait_for_header_credits(display, dsi_trans, 1)) return -EBUSY; - tmp = intel_de_read(dev_priv, DSI_CMD_TXHDR(dsi_trans)); + tmp = intel_de_read(display, DSI_CMD_TXHDR(dsi_trans)); if (packet->payload) tmp |= PAYLOAD_PRESENT; @@ -200,15 +200,14 @@ static int dsi_send_pkt_hdr(struct intel_dsi_host *host, tmp |= ((packet->header[0] & DT_MASK) << DT_SHIFT); tmp |= (packet->header[1] << PARAM_WC_LOWER_SHIFT); tmp |= (packet->header[2] << PARAM_WC_UPPER_SHIFT); - intel_de_write(dev_priv, DSI_CMD_TXHDR(dsi_trans), tmp); + intel_de_write(display, DSI_CMD_TXHDR(dsi_trans), tmp); return 0; } void icl_dsi_frame_update(struct intel_crtc_state *crtc_state) { - struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_display *display = to_intel_display(crtc_state); u32 mode_flags; enum port port; @@ -226,12 +225,13 @@ void icl_dsi_frame_update(struct intel_crtc_state *crtc_state) else return; - intel_de_rmw(dev_priv, DSI_CMD_FRMCTL(port), 0, DSI_FRAME_UPDATE_REQUEST); + intel_de_rmw(display, DSI_CMD_FRMCTL(port), 0, + DSI_FRAME_UPDATE_REQUEST); } static void dsi_program_swing_and_deemphasis(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum phy phy; u32 tmp, mask, val; @@ -245,31 +245,31 @@ static void dsi_program_swing_and_deemphasis(struct intel_encoder *encoder) mask = SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK; val = SCALING_MODE_SEL(0x2) | TAP2_DISABLE | TAP3_DISABLE | RTERM_SELECT(0x6); - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy)); + tmp = intel_de_read(display, ICL_PORT_TX_DW5_LN(0, phy)); tmp &= ~mask; tmp |= val; - intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), tmp); - intel_de_rmw(dev_priv, ICL_PORT_TX_DW5_AUX(phy), mask, val); + intel_de_write(display, ICL_PORT_TX_DW5_GRP(phy), tmp); + intel_de_rmw(display, ICL_PORT_TX_DW5_AUX(phy), mask, val); mask = SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK | RCOMP_SCALAR_MASK; val = SWING_SEL_UPPER(0x2) | SWING_SEL_LOWER(0x2) | RCOMP_SCALAR(0x98); - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW2_LN(0, phy)); + tmp = intel_de_read(display, ICL_PORT_TX_DW2_LN(0, phy)); tmp &= ~mask; tmp |= val; - intel_de_write(dev_priv, ICL_PORT_TX_DW2_GRP(phy), tmp); - intel_de_rmw(dev_priv, ICL_PORT_TX_DW2_AUX(phy), mask, val); + intel_de_write(display, ICL_PORT_TX_DW2_GRP(phy), tmp); + intel_de_rmw(display, ICL_PORT_TX_DW2_AUX(phy), mask, val); mask = POST_CURSOR_1_MASK | POST_CURSOR_2_MASK | CURSOR_COEFF_MASK; val = POST_CURSOR_1(0x0) | POST_CURSOR_2(0x0) | CURSOR_COEFF(0x3f); - intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_AUX(phy), mask, val); + intel_de_rmw(display, ICL_PORT_TX_DW4_AUX(phy), mask, val); /* Bspec: must not use GRP register for write */ for (lane = 0; lane <= 3; lane++) - intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_LN(lane, phy), + intel_de_rmw(display, ICL_PORT_TX_DW4_LN(lane, phy), mask, val); } } @@ -277,13 +277,13 @@ static void dsi_program_swing_and_deemphasis(struct intel_encoder *encoder) static void configure_dual_link_mode(struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); i915_reg_t dss_ctl1_reg, dss_ctl2_reg; u32 dss_ctl1; /* FIXME: Move all DSS handling to intel_vdsc.c */ - if (DISPLAY_VER(dev_priv) >= 12) { + if (DISPLAY_VER(display) >= 12) { struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); dss_ctl1_reg = ICL_PIPE_DSS_CTL1(crtc->pipe); @@ -293,7 +293,7 @@ static void configure_dual_link_mode(struct intel_encoder *encoder, dss_ctl2_reg = DSS_CTL2; } - dss_ctl1 = intel_de_read(dev_priv, dss_ctl1_reg); + dss_ctl1 = intel_de_read(display, dss_ctl1_reg); dss_ctl1 |= SPLITTER_ENABLE; dss_ctl1 &= ~OVERLAP_PIXELS_MASK; dss_ctl1 |= OVERLAP_PIXELS(intel_dsi->pixel_overlap); @@ -308,19 +308,19 @@ static void configure_dual_link_mode(struct intel_encoder *encoder, dl_buffer_depth = hactive / 2 + intel_dsi->pixel_overlap; if (dl_buffer_depth > MAX_DL_BUFFER_TARGET_DEPTH) - drm_err(&dev_priv->drm, + drm_err(display->drm, "DL buffer depth exceed max value\n"); dss_ctl1 &= ~LEFT_DL_BUF_TARGET_DEPTH_MASK; dss_ctl1 |= LEFT_DL_BUF_TARGET_DEPTH(dl_buffer_depth); - intel_de_rmw(dev_priv, dss_ctl2_reg, RIGHT_DL_BUF_TARGET_DEPTH_MASK, + intel_de_rmw(display, dss_ctl2_reg, RIGHT_DL_BUF_TARGET_DEPTH_MASK, RIGHT_DL_BUF_TARGET_DEPTH(dl_buffer_depth)); } else { /* Interleave */ dss_ctl1 |= DUAL_LINK_MODE_INTERLEAVE; } - intel_de_write(dev_priv, dss_ctl1_reg, dss_ctl1); + intel_de_write(display, dss_ctl1_reg, dss_ctl1); } /* aka DSI 8X clock */ @@ -341,6 +341,7 @@ static int afe_clk(struct intel_encoder *encoder, static void gen11_dsi_program_esc_clk_div(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { + struct intel_display *display = to_intel_display(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; @@ -360,33 +361,34 @@ static void gen11_dsi_program_esc_clk_div(struct intel_encoder *encoder, } for_each_dsi_port(port, intel_dsi->ports) { - intel_de_write(dev_priv, ICL_DSI_ESC_CLK_DIV(port), + intel_de_write(display, ICL_DSI_ESC_CLK_DIV(port), esc_clk_div_m & ICL_ESC_CLK_DIV_MASK); - intel_de_posting_read(dev_priv, ICL_DSI_ESC_CLK_DIV(port)); + intel_de_posting_read(display, ICL_DSI_ESC_CLK_DIV(port)); } for_each_dsi_port(port, intel_dsi->ports) { - intel_de_write(dev_priv, ICL_DPHY_ESC_CLK_DIV(port), + intel_de_write(display, ICL_DPHY_ESC_CLK_DIV(port), esc_clk_div_m & ICL_ESC_CLK_DIV_MASK); - intel_de_posting_read(dev_priv, ICL_DPHY_ESC_CLK_DIV(port)); + intel_de_posting_read(display, ICL_DPHY_ESC_CLK_DIV(port)); } if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv)) { for_each_dsi_port(port, intel_dsi->ports) { - intel_de_write(dev_priv, ADL_MIPIO_DW(port, 8), + intel_de_write(display, ADL_MIPIO_DW(port, 8), esc_clk_div_m_phy & TX_ESC_CLK_DIV_PHY); - intel_de_posting_read(dev_priv, ADL_MIPIO_DW(port, 8)); + intel_de_posting_read(display, ADL_MIPIO_DW(port, 8)); } } } -static void get_dsi_io_power_domains(struct drm_i915_private *dev_priv, - struct intel_dsi *intel_dsi) +static void get_dsi_io_power_domains(struct intel_dsi *intel_dsi) { + struct intel_display *display = to_intel_display(&intel_dsi->base); + struct drm_i915_private *dev_priv = to_i915(display->drm); enum port port; for_each_dsi_port(port, intel_dsi->ports) { - drm_WARN_ON(&dev_priv->drm, intel_dsi->io_wakeref[port]); + drm_WARN_ON(display->drm, intel_dsi->io_wakeref[port]); intel_dsi->io_wakeref[port] = intel_display_power_get(dev_priv, port == PORT_A ? @@ -397,15 +399,15 @@ static void get_dsi_io_power_domains(struct drm_i915_private *dev_priv, static void gen11_dsi_enable_io_power(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; for_each_dsi_port(port, intel_dsi->ports) - intel_de_rmw(dev_priv, ICL_DSI_IO_MODECTL(port), + intel_de_rmw(display, ICL_DSI_IO_MODECTL(port), 0, COMBO_PHY_MODE_DSI); - get_dsi_io_power_domains(dev_priv, intel_dsi); + get_dsi_io_power_domains(intel_dsi); } static void gen11_dsi_power_up_lanes(struct intel_encoder *encoder) @@ -421,6 +423,7 @@ static void gen11_dsi_power_up_lanes(struct intel_encoder *encoder) static void gen11_dsi_config_phy_lanes_sequence(struct intel_encoder *encoder) { + struct intel_display *display = to_intel_display(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum phy phy; @@ -429,32 +432,33 @@ static void gen11_dsi_config_phy_lanes_sequence(struct intel_encoder *encoder) /* Step 4b(i) set loadgen select for transmit and aux lanes */ for_each_dsi_phy(phy, intel_dsi->phys) { - intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_AUX(phy), LOADGEN_SELECT, 0); + intel_de_rmw(display, ICL_PORT_TX_DW4_AUX(phy), + LOADGEN_SELECT, 0); for (lane = 0; lane <= 3; lane++) - intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_LN(lane, phy), + intel_de_rmw(display, ICL_PORT_TX_DW4_LN(lane, phy), LOADGEN_SELECT, lane != 2 ? LOADGEN_SELECT : 0); } /* Step 4b(ii) set latency optimization for transmit and aux lanes */ for_each_dsi_phy(phy, intel_dsi->phys) { - intel_de_rmw(dev_priv, ICL_PORT_TX_DW2_AUX(phy), + intel_de_rmw(display, ICL_PORT_TX_DW2_AUX(phy), FRC_LATENCY_OPTIM_MASK, FRC_LATENCY_OPTIM_VAL(0x5)); - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW2_LN(0, phy)); + tmp = intel_de_read(display, ICL_PORT_TX_DW2_LN(0, phy)); tmp &= ~FRC_LATENCY_OPTIM_MASK; tmp |= FRC_LATENCY_OPTIM_VAL(0x5); - intel_de_write(dev_priv, ICL_PORT_TX_DW2_GRP(phy), tmp); + intel_de_write(display, ICL_PORT_TX_DW2_GRP(phy), tmp); /* For EHL, TGL, set latency optimization for PCS_DW1 lanes */ if (IS_JASPERLAKE(dev_priv) || IS_ELKHARTLAKE(dev_priv) || - (DISPLAY_VER(dev_priv) >= 12)) { - intel_de_rmw(dev_priv, ICL_PORT_PCS_DW1_AUX(phy), + (DISPLAY_VER(display) >= 12)) { + intel_de_rmw(display, ICL_PORT_PCS_DW1_AUX(phy), LATENCY_OPTIM_MASK, LATENCY_OPTIM_VAL(0)); - tmp = intel_de_read(dev_priv, + tmp = intel_de_read(display, ICL_PORT_PCS_DW1_LN(0, phy)); tmp &= ~LATENCY_OPTIM_MASK; tmp |= LATENCY_OPTIM_VAL(0x1); - intel_de_write(dev_priv, ICL_PORT_PCS_DW1_GRP(phy), + intel_de_write(display, ICL_PORT_PCS_DW1_GRP(phy), tmp); } } @@ -463,17 +467,17 @@ static void gen11_dsi_config_phy_lanes_sequence(struct intel_encoder *encoder) static void gen11_dsi_voltage_swing_program_seq(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); u32 tmp; enum phy phy; /* clear common keeper enable bit */ for_each_dsi_phy(phy, intel_dsi->phys) { - tmp = intel_de_read(dev_priv, ICL_PORT_PCS_DW1_LN(0, phy)); + tmp = intel_de_read(display, ICL_PORT_PCS_DW1_LN(0, phy)); tmp &= ~COMMON_KEEPER_EN; - intel_de_write(dev_priv, ICL_PORT_PCS_DW1_GRP(phy), tmp); - intel_de_rmw(dev_priv, ICL_PORT_PCS_DW1_AUX(phy), COMMON_KEEPER_EN, 0); + intel_de_write(display, ICL_PORT_PCS_DW1_GRP(phy), tmp); + intel_de_rmw(display, ICL_PORT_PCS_DW1_AUX(phy), COMMON_KEEPER_EN, 0); } /* @@ -482,14 +486,15 @@ static void gen11_dsi_voltage_swing_program_seq(struct intel_encoder *encoder) * as part of lane phy sequence configuration */ for_each_dsi_phy(phy, intel_dsi->phys) - intel_de_rmw(dev_priv, ICL_PORT_CL_DW5(phy), 0, SUS_CLOCK_CONFIG); + intel_de_rmw(display, ICL_PORT_CL_DW5(phy), 0, + SUS_CLOCK_CONFIG); /* Clear training enable to change swing values */ for_each_dsi_phy(phy, intel_dsi->phys) { - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy)); + tmp = intel_de_read(display, ICL_PORT_TX_DW5_LN(0, phy)); tmp &= ~TX_TRAINING_EN; - intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), tmp); - intel_de_rmw(dev_priv, ICL_PORT_TX_DW5_AUX(phy), TX_TRAINING_EN, 0); + intel_de_write(display, ICL_PORT_TX_DW5_GRP(phy), tmp); + intel_de_rmw(display, ICL_PORT_TX_DW5_AUX(phy), TX_TRAINING_EN, 0); } /* Program swing and de-emphasis */ @@ -497,26 +502,26 @@ static void gen11_dsi_voltage_swing_program_seq(struct intel_encoder *encoder) /* Set training enable to trigger update */ for_each_dsi_phy(phy, intel_dsi->phys) { - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy)); + tmp = intel_de_read(display, ICL_PORT_TX_DW5_LN(0, phy)); tmp |= TX_TRAINING_EN; - intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), tmp); - intel_de_rmw(dev_priv, ICL_PORT_TX_DW5_AUX(phy), 0, TX_TRAINING_EN); + intel_de_write(display, ICL_PORT_TX_DW5_GRP(phy), tmp); + intel_de_rmw(display, ICL_PORT_TX_DW5_AUX(phy), 0, TX_TRAINING_EN); } } static void gen11_dsi_enable_ddi_buffer(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; for_each_dsi_port(port, intel_dsi->ports) { - intel_de_rmw(dev_priv, DDI_BUF_CTL(port), 0, DDI_BUF_CTL_ENABLE); + intel_de_rmw(display, DDI_BUF_CTL(port), 0, DDI_BUF_CTL_ENABLE); - if (wait_for_us(!(intel_de_read(dev_priv, DDI_BUF_CTL(port)) & + if (wait_for_us(!(intel_de_read(display, DDI_BUF_CTL(port)) & DDI_BUF_IS_IDLE), 500)) - drm_err(&dev_priv->drm, "DDI port:%c buffer idle\n", + drm_err(display->drm, "DDI port:%c buffer idle\n", port_name(port)); } } @@ -525,6 +530,7 @@ static void gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { + struct intel_display *display = to_intel_display(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; @@ -532,12 +538,12 @@ gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder, /* Program DPHY clock lanes timings */ for_each_dsi_port(port, intel_dsi->ports) - intel_de_write(dev_priv, DPHY_CLK_TIMING_PARAM(port), + intel_de_write(display, DPHY_CLK_TIMING_PARAM(port), intel_dsi->dphy_reg); /* Program DPHY data lanes timings */ for_each_dsi_port(port, intel_dsi->ports) - intel_de_write(dev_priv, DPHY_DATA_TIMING_PARAM(port), + intel_de_write(display, DPHY_DATA_TIMING_PARAM(port), intel_dsi->dphy_data_lane_reg); /* @@ -546,10 +552,10 @@ gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder, * a value '0' inside TA_PARAM_REGISTERS otherwise * leave all fields at HW default values. */ - if (DISPLAY_VER(dev_priv) == 11) { + if (DISPLAY_VER(display) == 11) { if (afe_clk(encoder, crtc_state) <= 800000) { for_each_dsi_port(port, intel_dsi->ports) - intel_de_rmw(dev_priv, DPHY_TA_TIMING_PARAM(port), + intel_de_rmw(display, DPHY_TA_TIMING_PARAM(port), TA_SURE_MASK, TA_SURE_OVERRIDE | TA_SURE(0)); } @@ -557,7 +563,7 @@ gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder, if (IS_JASPERLAKE(dev_priv) || IS_ELKHARTLAKE(dev_priv)) { for_each_dsi_phy(phy, intel_dsi->phys) - intel_de_rmw(dev_priv, ICL_DPHY_CHKN(phy), + intel_de_rmw(display, ICL_DPHY_CHKN(phy), 0, ICL_DPHY_CHKN_AFE_OVER_PPI_STRAP); } } @@ -566,30 +572,30 @@ static void gen11_dsi_setup_timings(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; /* Program T-INIT master registers */ for_each_dsi_port(port, intel_dsi->ports) - intel_de_rmw(dev_priv, ICL_DSI_T_INIT_MASTER(port), + intel_de_rmw(display, ICL_DSI_T_INIT_MASTER(port), DSI_T_INIT_MASTER_MASK, intel_dsi->init_count); /* shadow register inside display core */ for_each_dsi_port(port, intel_dsi->ports) - intel_de_write(dev_priv, DSI_CLK_TIMING_PARAM(port), + intel_de_write(display, DSI_CLK_TIMING_PARAM(port), intel_dsi->dphy_reg); /* shadow register inside display core */ for_each_dsi_port(port, intel_dsi->ports) - intel_de_write(dev_priv, DSI_DATA_TIMING_PARAM(port), + intel_de_write(display, DSI_DATA_TIMING_PARAM(port), intel_dsi->dphy_data_lane_reg); /* shadow register inside display core */ - if (DISPLAY_VER(dev_priv) == 11) { + if (DISPLAY_VER(display) == 11) { if (afe_clk(encoder, crtc_state) <= 800000) { for_each_dsi_port(port, intel_dsi->ports) { - intel_de_rmw(dev_priv, DSI_TA_TIMING_PARAM(port), + intel_de_rmw(display, DSI_TA_TIMING_PARAM(port), TA_SURE_MASK, TA_SURE_OVERRIDE | TA_SURE(0)); } @@ -599,45 +605,45 @@ gen11_dsi_setup_timings(struct intel_encoder *encoder, static void gen11_dsi_gate_clocks(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); u32 tmp; enum phy phy; - mutex_lock(&dev_priv->display.dpll.lock); - tmp = intel_de_read(dev_priv, ICL_DPCLKA_CFGCR0); + mutex_lock(&display->dpll.lock); + tmp = intel_de_read(display, ICL_DPCLKA_CFGCR0); for_each_dsi_phy(phy, intel_dsi->phys) tmp |= ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy); - intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, tmp); - mutex_unlock(&dev_priv->display.dpll.lock); + intel_de_write(display, ICL_DPCLKA_CFGCR0, tmp); + mutex_unlock(&display->dpll.lock); } static void gen11_dsi_ungate_clocks(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); u32 tmp; enum phy phy; - mutex_lock(&dev_priv->display.dpll.lock); - tmp = intel_de_read(dev_priv, ICL_DPCLKA_CFGCR0); + mutex_lock(&display->dpll.lock); + tmp = intel_de_read(display, ICL_DPCLKA_CFGCR0); for_each_dsi_phy(phy, intel_dsi->phys) tmp &= ~ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy); - intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, tmp); - mutex_unlock(&dev_priv->display.dpll.lock); + intel_de_write(display, ICL_DPCLKA_CFGCR0, tmp); + mutex_unlock(&display->dpll.lock); } static bool gen11_dsi_is_clock_enabled(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); bool clock_enabled = false; enum phy phy; u32 tmp; - tmp = intel_de_read(dev_priv, ICL_DPCLKA_CFGCR0); + tmp = intel_de_read(display, ICL_DPCLKA_CFGCR0); for_each_dsi_phy(phy, intel_dsi->phys) { if (!(tmp & ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy))) @@ -650,36 +656,36 @@ static bool gen11_dsi_is_clock_enabled(struct intel_encoder *encoder) static void gen11_dsi_map_pll(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum phy phy; u32 val; - mutex_lock(&dev_priv->display.dpll.lock); + mutex_lock(&display->dpll.lock); - val = intel_de_read(dev_priv, ICL_DPCLKA_CFGCR0); + val = intel_de_read(display, ICL_DPCLKA_CFGCR0); for_each_dsi_phy(phy, intel_dsi->phys) { val &= ~ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy); val |= ICL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy); } - intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, val); + intel_de_write(display, ICL_DPCLKA_CFGCR0, val); for_each_dsi_phy(phy, intel_dsi->phys) { val &= ~ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy); } - intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, val); + intel_de_write(display, ICL_DPCLKA_CFGCR0, val); - intel_de_posting_read(dev_priv, ICL_DPCLKA_CFGCR0); + intel_de_posting_read(display, ICL_DPCLKA_CFGCR0); - mutex_unlock(&dev_priv->display.dpll.lock); + mutex_unlock(&display->dpll.lock); } static void gen11_dsi_configure_transcoder(struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); enum pipe pipe = crtc->pipe; @@ -689,7 +695,7 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder, for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - tmp = intel_de_read(dev_priv, DSI_TRANS_FUNC_CONF(dsi_trans)); + tmp = intel_de_read(display, DSI_TRANS_FUNC_CONF(dsi_trans)); if (intel_dsi->eotp_pkt) tmp &= ~EOTP_DISABLED; @@ -745,7 +751,7 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder, } } - if (DISPLAY_VER(dev_priv) >= 12) { + if (DISPLAY_VER(display) >= 12) { if (is_vid_mode(intel_dsi)) tmp |= BLANKING_PACKET_ENABLE; } @@ -778,15 +784,15 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder, tmp |= TE_SOURCE_GPIO; } - intel_de_write(dev_priv, DSI_TRANS_FUNC_CONF(dsi_trans), tmp); + intel_de_write(display, DSI_TRANS_FUNC_CONF(dsi_trans), tmp); } /* enable port sync mode if dual link */ if (intel_dsi->dual_link) { for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_rmw(dev_priv, - TRANS_DDI_FUNC_CTL2(dev_priv, dsi_trans), + intel_de_rmw(display, + TRANS_DDI_FUNC_CTL2(display, dsi_trans), 0, PORT_SYNC_MODE_ENABLE); } @@ -798,10 +804,10 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder, dsi_trans = dsi_port_to_transcoder(port); /* select data lane width */ - tmp = intel_de_read(dev_priv, - TRANS_DDI_FUNC_CTL(dev_priv, dsi_trans)); - tmp &= ~DDI_PORT_WIDTH_MASK; - tmp |= DDI_PORT_WIDTH(intel_dsi->lane_count); + tmp = intel_de_read(display, + TRANS_DDI_FUNC_CTL(display, dsi_trans)); + tmp &= ~TRANS_DDI_PORT_WIDTH_MASK; + tmp |= TRANS_DDI_PORT_WIDTH(intel_dsi->lane_count); /* select input pipe */ tmp &= ~TRANS_DDI_EDP_INPUT_MASK; @@ -825,16 +831,16 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder, /* enable DDI buffer */ tmp |= TRANS_DDI_FUNC_ENABLE; - intel_de_write(dev_priv, - TRANS_DDI_FUNC_CTL(dev_priv, dsi_trans), tmp); + intel_de_write(display, + TRANS_DDI_FUNC_CTL(display, dsi_trans), tmp); } /* wait for link ready */ for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - if (wait_for_us((intel_de_read(dev_priv, DSI_TRANS_FUNC_CONF(dsi_trans)) & + if (wait_for_us((intel_de_read(display, DSI_TRANS_FUNC_CONF(dsi_trans)) & LINK_READY), 2500)) - drm_err(&dev_priv->drm, "DSI link not ready\n"); + drm_err(display->drm, "DSI link not ready\n"); } } @@ -842,7 +848,7 @@ static void gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; @@ -909,17 +915,17 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder, /* minimum hactive as per bspec: 256 pixels */ if (adjusted_mode->crtc_hdisplay < 256) - drm_err(&dev_priv->drm, "hactive is less then 256 pixels\n"); + drm_err(display->drm, "hactive is less then 256 pixels\n"); /* if RGB666 format, then hactive must be multiple of 4 pixels */ if (intel_dsi->pixel_format == MIPI_DSI_FMT_RGB666 && hactive % 4 != 0) - drm_err(&dev_priv->drm, + drm_err(display->drm, "hactive pixels are not multiple of 4\n"); /* program TRANS_HTOTAL register */ for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_write(dev_priv, TRANS_HTOTAL(dev_priv, dsi_trans), + intel_de_write(display, TRANS_HTOTAL(display, dsi_trans), HACTIVE(hactive - 1) | HTOTAL(htotal - 1)); } @@ -928,12 +934,12 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder, if (intel_dsi->video_mode == NON_BURST_SYNC_PULSE) { /* BSPEC: hsync size should be atleast 16 pixels */ if (hsync_size < 16) - drm_err(&dev_priv->drm, + drm_err(display->drm, "hsync size < 16 pixels\n"); } if (hback_porch < 16) - drm_err(&dev_priv->drm, "hback porch < 16 pixels\n"); + drm_err(display->drm, "hback porch < 16 pixels\n"); if (intel_dsi->dual_link) { hsync_start /= 2; @@ -942,8 +948,8 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder, for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_write(dev_priv, - TRANS_HSYNC(dev_priv, dsi_trans), + intel_de_write(display, + TRANS_HSYNC(display, dsi_trans), HSYNC_START(hsync_start - 1) | HSYNC_END(hsync_end - 1)); } } @@ -957,22 +963,22 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder, * struct drm_display_mode. * For interlace mode: program required pixel minus 2 */ - intel_de_write(dev_priv, TRANS_VTOTAL(dev_priv, dsi_trans), + intel_de_write(display, TRANS_VTOTAL(display, dsi_trans), VACTIVE(vactive - 1) | VTOTAL(vtotal - 1)); } if (vsync_end < vsync_start || vsync_end > vtotal) - drm_err(&dev_priv->drm, "Invalid vsync_end value\n"); + drm_err(display->drm, "Invalid vsync_end value\n"); if (vsync_start < vactive) - drm_err(&dev_priv->drm, "vsync_start less than vactive\n"); + drm_err(display->drm, "vsync_start less than vactive\n"); /* program TRANS_VSYNC register for video mode only */ if (is_vid_mode(intel_dsi)) { for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_write(dev_priv, - TRANS_VSYNC(dev_priv, dsi_trans), + intel_de_write(display, + TRANS_VSYNC(display, dsi_trans), VSYNC_START(vsync_start - 1) | VSYNC_END(vsync_end - 1)); } } @@ -986,8 +992,8 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder, if (is_vid_mode(intel_dsi)) { for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_write(dev_priv, - TRANS_VSYNCSHIFT(dev_priv, dsi_trans), + intel_de_write(display, + TRANS_VSYNCSHIFT(display, dsi_trans), vsync_shift); } } @@ -998,11 +1004,11 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder, * FIXME get rid of these local hacks and do it right, * this will not handle eg. delayed vblank correctly. */ - if (DISPLAY_VER(dev_priv) >= 12) { + if (DISPLAY_VER(display) >= 12) { for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_write(dev_priv, - TRANS_VBLANK(dev_priv, dsi_trans), + intel_de_write(display, + TRANS_VBLANK(display, dsi_trans), VBLANK_START(vactive - 1) | VBLANK_END(vtotal - 1)); } } @@ -1010,20 +1016,20 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder, static void gen11_dsi_enable_transcoder(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; enum transcoder dsi_trans; for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_rmw(dev_priv, TRANSCONF(dev_priv, dsi_trans), 0, + intel_de_rmw(display, TRANSCONF(display, dsi_trans), 0, TRANSCONF_ENABLE); /* wait for transcoder to be enabled */ - if (intel_de_wait_for_set(dev_priv, TRANSCONF(dev_priv, dsi_trans), + if (intel_de_wait_for_set(display, TRANSCONF(display, dsi_trans), TRANSCONF_STATE_ENABLE, 10)) - drm_err(&dev_priv->drm, + drm_err(display->drm, "DSI transcoder not enabled\n"); } } @@ -1031,7 +1037,7 @@ static void gen11_dsi_enable_transcoder(struct intel_encoder *encoder) static void gen11_dsi_setup_timeouts(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; enum transcoder dsi_trans; @@ -1055,21 +1061,21 @@ static void gen11_dsi_setup_timeouts(struct intel_encoder *encoder, dsi_trans = dsi_port_to_transcoder(port); /* program hst_tx_timeout */ - intel_de_rmw(dev_priv, DSI_HSTX_TO(dsi_trans), + intel_de_rmw(display, DSI_HSTX_TO(dsi_trans), HSTX_TIMEOUT_VALUE_MASK, HSTX_TIMEOUT_VALUE(hs_tx_timeout)); /* FIXME: DSI_CALIB_TO */ /* program lp_rx_host timeout */ - intel_de_rmw(dev_priv, DSI_LPRX_HOST_TO(dsi_trans), + intel_de_rmw(display, DSI_LPRX_HOST_TO(dsi_trans), LPRX_TIMEOUT_VALUE_MASK, LPRX_TIMEOUT_VALUE(lp_rx_timeout)); /* FIXME: DSI_PWAIT_TO */ /* program turn around timeout */ - intel_de_rmw(dev_priv, DSI_TA_TO(dsi_trans), + intel_de_rmw(display, DSI_TA_TO(dsi_trans), TA_TIMEOUT_VALUE_MASK, TA_TIMEOUT_VALUE(ta_timeout)); } @@ -1078,7 +1084,7 @@ static void gen11_dsi_setup_timeouts(struct intel_encoder *encoder, static void gen11_dsi_config_util_pin(struct intel_encoder *encoder, bool enable) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); u32 tmp; @@ -1090,7 +1096,7 @@ static void gen11_dsi_config_util_pin(struct intel_encoder *encoder, if (is_vid_mode(intel_dsi) || (intel_dsi->ports & BIT(PORT_B))) return; - tmp = intel_de_read(dev_priv, UTIL_PIN_CTL); + tmp = intel_de_read(display, UTIL_PIN_CTL); if (enable) { tmp |= UTIL_PIN_DIRECTION_INPUT; @@ -1098,7 +1104,7 @@ static void gen11_dsi_config_util_pin(struct intel_encoder *encoder, } else { tmp &= ~UTIL_PIN_ENABLE; } - intel_de_write(dev_priv, UTIL_PIN_CTL, tmp); + intel_de_write(display, UTIL_PIN_CTL, tmp); } static void @@ -1136,7 +1142,7 @@ gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder, static void gen11_dsi_powerup_panel(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); struct mipi_dsi_device *dsi; enum port port; @@ -1152,14 +1158,14 @@ static void gen11_dsi_powerup_panel(struct intel_encoder *encoder) * FIXME: This uses the number of DW's currently in the payload * receive queue. This is probably not what we want here. */ - tmp = intel_de_read(dev_priv, DSI_CMD_RXCTL(dsi_trans)); + tmp = intel_de_read(display, DSI_CMD_RXCTL(dsi_trans)); tmp &= NUMBER_RX_PLOAD_DW_MASK; /* multiply "Number Rx Payload DW" by 4 to get max value */ tmp = tmp * 4; dsi = intel_dsi->dsi_hosts[port]->device; ret = mipi_dsi_set_maximum_return_packet_size(dsi, tmp); if (ret < 0) - drm_err(&dev_priv->drm, + drm_err(display->drm, "error setting max return pkt size%d\n", tmp); } @@ -1219,10 +1225,10 @@ static void gen11_dsi_pre_enable(struct intel_atomic_state *state, static void icl_apply_kvmr_pipe_a_wa(struct intel_encoder *encoder, enum pipe pipe, bool enable) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); - if (DISPLAY_VER(dev_priv) == 11 && pipe == PIPE_B) - intel_de_rmw(dev_priv, CHICKEN_PAR1_1, + if (DISPLAY_VER(display) == 11 && pipe == PIPE_B) + intel_de_rmw(display, CHICKEN_PAR1_1, IGNORE_KVMR_PIPE_A, enable ? IGNORE_KVMR_PIPE_A : 0); } @@ -1235,13 +1241,13 @@ static void icl_apply_kvmr_pipe_a_wa(struct intel_encoder *encoder, */ static void adlp_set_lp_hs_wakeup_gb(struct intel_encoder *encoder) { - struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; - if (DISPLAY_VER(i915) == 13) { + if (DISPLAY_VER(display) == 13) { for_each_dsi_port(port, intel_dsi->ports) - intel_de_rmw(i915, TGL_DSI_CHKN_REG(port), + intel_de_rmw(display, TGL_DSI_CHKN_REG(port), TGL_DSI_CHKN_LSHS_GB_MASK, TGL_DSI_CHKN_LSHS_GB(4)); } @@ -1275,7 +1281,7 @@ static void gen11_dsi_enable(struct intel_atomic_state *state, static void gen11_dsi_disable_transcoder(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; enum transcoder dsi_trans; @@ -1284,13 +1290,13 @@ static void gen11_dsi_disable_transcoder(struct intel_encoder *encoder) dsi_trans = dsi_port_to_transcoder(port); /* disable transcoder */ - intel_de_rmw(dev_priv, TRANSCONF(dev_priv, dsi_trans), + intel_de_rmw(display, TRANSCONF(display, dsi_trans), TRANSCONF_ENABLE, 0); /* wait for transcoder to be disabled */ - if (intel_de_wait_for_clear(dev_priv, TRANSCONF(dev_priv, dsi_trans), + if (intel_de_wait_for_clear(display, TRANSCONF(display, dsi_trans), TRANSCONF_STATE_ENABLE, 50)) - drm_err(&dev_priv->drm, + drm_err(display->drm, "DSI trancoder not disabled\n"); } } @@ -1307,7 +1313,7 @@ static void gen11_dsi_powerdown_panel(struct intel_encoder *encoder) static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; enum transcoder dsi_trans; @@ -1316,29 +1322,29 @@ static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder) /* disable periodic update mode */ if (is_cmd_mode(intel_dsi)) { for_each_dsi_port(port, intel_dsi->ports) - intel_de_rmw(dev_priv, DSI_CMD_FRMCTL(port), + intel_de_rmw(display, DSI_CMD_FRMCTL(port), DSI_PERIODIC_FRAME_UPDATE_ENABLE, 0); } /* put dsi link in ULPS */ for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - tmp = intel_de_read(dev_priv, DSI_LP_MSG(dsi_trans)); + tmp = intel_de_read(display, DSI_LP_MSG(dsi_trans)); tmp |= LINK_ENTER_ULPS; tmp &= ~LINK_ULPS_TYPE_LP11; - intel_de_write(dev_priv, DSI_LP_MSG(dsi_trans), tmp); + intel_de_write(display, DSI_LP_MSG(dsi_trans), tmp); - if (wait_for_us((intel_de_read(dev_priv, DSI_LP_MSG(dsi_trans)) & + if (wait_for_us((intel_de_read(display, DSI_LP_MSG(dsi_trans)) & LINK_IN_ULPS), 10)) - drm_err(&dev_priv->drm, "DSI link not in ULPS\n"); + drm_err(display->drm, "DSI link not in ULPS\n"); } /* disable ddi function */ for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_rmw(dev_priv, - TRANS_DDI_FUNC_CTL(dev_priv, dsi_trans), + intel_de_rmw(display, + TRANS_DDI_FUNC_CTL(display, dsi_trans), TRANS_DDI_FUNC_ENABLE, 0); } @@ -1346,8 +1352,8 @@ static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder) if (intel_dsi->dual_link) { for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - intel_de_rmw(dev_priv, - TRANS_DDI_FUNC_CTL2(dev_priv, dsi_trans), + intel_de_rmw(display, + TRANS_DDI_FUNC_CTL2(display, dsi_trans), PORT_SYNC_MODE_ENABLE, 0); } } @@ -1355,18 +1361,18 @@ static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder) static void gen11_dsi_disable_port(struct intel_encoder *encoder) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; gen11_dsi_ungate_clocks(encoder); for_each_dsi_port(port, intel_dsi->ports) { - intel_de_rmw(dev_priv, DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE, 0); + intel_de_rmw(display, DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE, 0); - if (wait_for_us((intel_de_read(dev_priv, DDI_BUF_CTL(port)) & + if (wait_for_us((intel_de_read(display, DDI_BUF_CTL(port)) & DDI_BUF_IS_IDLE), 8)) - drm_err(&dev_priv->drm, + drm_err(display->drm, "DDI port:%c buffer not idle\n", port_name(port)); } @@ -1375,6 +1381,7 @@ static void gen11_dsi_disable_port(struct intel_encoder *encoder) static void gen11_dsi_disable_io_power(struct intel_encoder *encoder) { + struct intel_display *display = to_intel_display(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; @@ -1392,7 +1399,7 @@ static void gen11_dsi_disable_io_power(struct intel_encoder *encoder) /* set mode to DDI */ for_each_dsi_port(port, intel_dsi->ports) - intel_de_rmw(dev_priv, ICL_DSI_IO_MODECTL(port), + intel_de_rmw(display, ICL_DSI_IO_MODECTL(port), COMBO_PHY_MODE_DSI, 0); } @@ -1504,8 +1511,7 @@ static void gen11_dsi_get_timings(struct intel_encoder *encoder, static bool gen11_dsi_is_periodic_cmd_mode(struct intel_dsi *intel_dsi) { - struct drm_device *dev = intel_dsi->base.base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); + struct intel_display *display = to_intel_display(&intel_dsi->base); enum transcoder dsi_trans; u32 val; @@ -1514,7 +1520,7 @@ static bool gen11_dsi_is_periodic_cmd_mode(struct intel_dsi *intel_dsi) else dsi_trans = TRANSCODER_DSI_0; - val = intel_de_read(dev_priv, DSI_TRANS_FUNC_CONF(dsi_trans)); + val = intel_de_read(display, DSI_TRANS_FUNC_CONF(dsi_trans)); return (val & DSI_PERIODIC_FRAME_UPDATE_ENABLE); } @@ -1557,7 +1563,7 @@ static void gen11_dsi_get_config(struct intel_encoder *encoder, static void gen11_dsi_sync_state(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_crtc *intel_crtc; enum pipe pipe; @@ -1568,9 +1574,9 @@ static void gen11_dsi_sync_state(struct intel_encoder *encoder, pipe = intel_crtc->pipe; /* wa verify 1409054076:icl,jsl,ehl */ - if (DISPLAY_VER(dev_priv) == 11 && pipe == PIPE_B && - !(intel_de_read(dev_priv, CHICKEN_PAR1_1) & IGNORE_KVMR_PIPE_A)) - drm_dbg_kms(&dev_priv->drm, + if (DISPLAY_VER(display) == 11 && pipe == PIPE_B && + !(intel_de_read(display, CHICKEN_PAR1_1) & IGNORE_KVMR_PIPE_A)) + drm_dbg_kms(display->drm, "[ENCODER:%d:%s] BIOS left IGNORE_KVMR_PIPE_A cleared with pipe B enabled\n", encoder->base.base.id, encoder->base.name); @@ -1579,9 +1585,9 @@ static void gen11_dsi_sync_state(struct intel_encoder *encoder, static int gen11_dsi_dsc_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; - int dsc_max_bpc = DISPLAY_VER(dev_priv) >= 12 ? 12 : 10; + int dsc_max_bpc = DISPLAY_VER(display) >= 12 ? 12 : 10; bool use_dsc; int ret; @@ -1606,12 +1612,12 @@ static int gen11_dsi_dsc_compute_config(struct intel_encoder *encoder, return ret; /* DSI specific sanity checks on the common code */ - drm_WARN_ON(&dev_priv->drm, vdsc_cfg->vbr_enable); - drm_WARN_ON(&dev_priv->drm, vdsc_cfg->simple_422); - drm_WARN_ON(&dev_priv->drm, + drm_WARN_ON(display->drm, vdsc_cfg->vbr_enable); + drm_WARN_ON(display->drm, vdsc_cfg->simple_422); + drm_WARN_ON(display->drm, vdsc_cfg->pic_width % vdsc_cfg->slice_width); - drm_WARN_ON(&dev_priv->drm, vdsc_cfg->slice_height < 8); - drm_WARN_ON(&dev_priv->drm, + drm_WARN_ON(display->drm, vdsc_cfg->slice_height < 8); + drm_WARN_ON(display->drm, vdsc_cfg->pic_height % vdsc_cfg->slice_height); ret = drm_dsc_compute_rc_parameters(vdsc_cfg); @@ -1627,7 +1633,7 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state) { - struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); struct intel_connector *intel_connector = intel_dsi->attached_connector; struct drm_display_mode *adjusted_mode = @@ -1661,7 +1667,7 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder, pipe_config->clock_set = true; if (gen11_dsi_dsc_compute_config(encoder, pipe_config)) - drm_dbg_kms(&i915->drm, "Attempting to use DSC failed\n"); + drm_dbg_kms(display->drm, "Attempting to use DSC failed\n"); pipe_config->port_clock = afe_clk(encoder, pipe_config) / 5; @@ -1679,15 +1685,13 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder, static void gen11_dsi_get_power_domains(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { - struct drm_i915_private *i915 = to_i915(encoder->base.dev); - - get_dsi_io_power_domains(i915, - enc_to_intel_dsi(encoder)); + get_dsi_io_power_domains(enc_to_intel_dsi(encoder)); } static bool gen11_dsi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe) { + struct intel_display *display = to_intel_display(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum transcoder dsi_trans; @@ -1703,8 +1707,8 @@ static bool gen11_dsi_get_hw_state(struct intel_encoder *encoder, for_each_dsi_port(port, intel_dsi->ports) { dsi_trans = dsi_port_to_transcoder(port); - tmp = intel_de_read(dev_priv, - TRANS_DDI_FUNC_CTL(dev_priv, dsi_trans)); + tmp = intel_de_read(display, + TRANS_DDI_FUNC_CTL(display, dsi_trans)); switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { case TRANS_DDI_EDP_INPUT_A_ON: *pipe = PIPE_A; @@ -1719,11 +1723,11 @@ static bool gen11_dsi_get_hw_state(struct intel_encoder *encoder, *pipe = PIPE_D; break; default: - drm_err(&dev_priv->drm, "Invalid PIPE input\n"); + drm_err(display->drm, "Invalid PIPE input\n"); goto out; } - tmp = intel_de_read(dev_priv, TRANSCONF(dev_priv, dsi_trans)); + tmp = intel_de_read(display, TRANSCONF(display, dsi_trans)); ret = tmp & TRANSCONF_ENABLE; } out: @@ -1833,8 +1837,7 @@ static const struct mipi_dsi_host_ops gen11_dsi_host_ops = { static void icl_dphy_param_init(struct intel_dsi *intel_dsi) { - struct drm_device *dev = intel_dsi->base.base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); + struct intel_display *display = to_intel_display(&intel_dsi->base); struct intel_connector *connector = intel_dsi->attached_connector; struct mipi_config *mipi_config = connector->panel.vbt.dsi.config; u32 tlpx_ns; @@ -1858,7 +1861,7 @@ static void icl_dphy_param_init(struct intel_dsi *intel_dsi) */ prepare_cnt = DIV_ROUND_UP(ths_prepare_ns * 4, tlpx_ns); if (prepare_cnt > ICL_PREPARE_CNT_MAX) { - drm_dbg_kms(&dev_priv->drm, "prepare_cnt out of range (%d)\n", + drm_dbg_kms(display->drm, "prepare_cnt out of range (%d)\n", prepare_cnt); prepare_cnt = ICL_PREPARE_CNT_MAX; } @@ -1867,7 +1870,7 @@ static void icl_dphy_param_init(struct intel_dsi *intel_dsi) clk_zero_cnt = DIV_ROUND_UP(mipi_config->tclk_prepare_clkzero - ths_prepare_ns, tlpx_ns); if (clk_zero_cnt > ICL_CLK_ZERO_CNT_MAX) { - drm_dbg_kms(&dev_priv->drm, + drm_dbg_kms(display->drm, "clk_zero_cnt out of range (%d)\n", clk_zero_cnt); clk_zero_cnt = ICL_CLK_ZERO_CNT_MAX; } @@ -1875,7 +1878,7 @@ static void icl_dphy_param_init(struct intel_dsi *intel_dsi) /* trail cnt in escape clocks*/ trail_cnt = DIV_ROUND_UP(tclk_trail_ns, tlpx_ns); if (trail_cnt > ICL_TRAIL_CNT_MAX) { - drm_dbg_kms(&dev_priv->drm, "trail_cnt out of range (%d)\n", + drm_dbg_kms(display->drm, "trail_cnt out of range (%d)\n", trail_cnt); trail_cnt = ICL_TRAIL_CNT_MAX; } @@ -1883,7 +1886,7 @@ static void icl_dphy_param_init(struct intel_dsi *intel_dsi) /* tclk pre count in escape clocks */ tclk_pre_cnt = DIV_ROUND_UP(mipi_config->tclk_pre, tlpx_ns); if (tclk_pre_cnt > ICL_TCLK_PRE_CNT_MAX) { - drm_dbg_kms(&dev_priv->drm, + drm_dbg_kms(display->drm, "tclk_pre_cnt out of range (%d)\n", tclk_pre_cnt); tclk_pre_cnt = ICL_TCLK_PRE_CNT_MAX; } @@ -1892,7 +1895,7 @@ static void icl_dphy_param_init(struct intel_dsi *intel_dsi) hs_zero_cnt = DIV_ROUND_UP(mipi_config->ths_prepare_hszero - ths_prepare_ns, tlpx_ns); if (hs_zero_cnt > ICL_HS_ZERO_CNT_MAX) { - drm_dbg_kms(&dev_priv->drm, "hs_zero_cnt out of range (%d)\n", + drm_dbg_kms(display->drm, "hs_zero_cnt out of range (%d)\n", hs_zero_cnt); hs_zero_cnt = ICL_HS_ZERO_CNT_MAX; } @@ -1900,7 +1903,7 @@ static void icl_dphy_param_init(struct intel_dsi *intel_dsi) /* hs exit zero cnt in escape clocks */ exit_zero_cnt = DIV_ROUND_UP(mipi_config->ths_exit, tlpx_ns); if (exit_zero_cnt > ICL_EXIT_ZERO_CNT_MAX) { - drm_dbg_kms(&dev_priv->drm, + drm_dbg_kms(display->drm, "exit_zero_cnt out of range (%d)\n", exit_zero_cnt); exit_zero_cnt = ICL_EXIT_ZERO_CNT_MAX; @@ -1942,10 +1945,9 @@ static void icl_dsi_add_properties(struct intel_connector *connector) fixed_mode->vdisplay); } -void icl_dsi_init(struct drm_i915_private *dev_priv, +void icl_dsi_init(struct intel_display *display, const struct intel_bios_encoder_data *devdata) { - struct intel_display *display = &dev_priv->display; struct intel_dsi *intel_dsi; struct intel_encoder *encoder; struct intel_connector *intel_connector; @@ -1973,7 +1975,8 @@ void icl_dsi_init(struct drm_i915_private *dev_priv, encoder->devdata = devdata; /* register DSI encoder with DRM subsystem */ - drm_encoder_init(&dev_priv->drm, &encoder->base, &gen11_dsi_encoder_funcs, + drm_encoder_init(display->drm, &encoder->base, + &gen11_dsi_encoder_funcs, DRM_MODE_ENCODER_DSI, "DSI %c", port_name(port)); encoder->pre_pll_enable = gen11_dsi_pre_pll_enable; @@ -1998,7 +2001,8 @@ void icl_dsi_init(struct drm_i915_private *dev_priv, encoder->shutdown = intel_dsi_shutdown; /* register DSI connector with DRM subsystem */ - drm_connector_init(&dev_priv->drm, connector, &gen11_dsi_connector_funcs, + drm_connector_init(display->drm, connector, + &gen11_dsi_connector_funcs, DRM_MODE_CONNECTOR_DSI); drm_connector_helper_add(connector, &gen11_dsi_connector_helper_funcs); connector->display_info.subpixel_order = SubPixelHorizontalRGB; @@ -2011,12 +2015,12 @@ void icl_dsi_init(struct drm_i915_private *dev_priv, intel_bios_init_panel_late(display, &intel_connector->panel, encoder->devdata, NULL); - mutex_lock(&dev_priv->drm.mode_config.mutex); + mutex_lock(&display->drm->mode_config.mutex); intel_panel_add_vbt_lfp_fixed_mode(intel_connector); - mutex_unlock(&dev_priv->drm.mode_config.mutex); + mutex_unlock(&display->drm->mode_config.mutex); if (!intel_panel_preferred_fixed_mode(intel_connector)) { - drm_err(&dev_priv->drm, "DSI fixed mode info missing\n"); + drm_err(display->drm, "DSI fixed mode info missing\n"); goto err; } @@ -2029,10 +2033,10 @@ void icl_dsi_init(struct drm_i915_private *dev_priv, else intel_dsi->ports = BIT(port); - if (drm_WARN_ON(&dev_priv->drm, intel_connector->panel.vbt.dsi.bl_ports & ~intel_dsi->ports)) + if (drm_WARN_ON(display->drm, intel_connector->panel.vbt.dsi.bl_ports & ~intel_dsi->ports)) intel_connector->panel.vbt.dsi.bl_ports &= intel_dsi->ports; - if (drm_WARN_ON(&dev_priv->drm, intel_connector->panel.vbt.dsi.cabc_ports & ~intel_dsi->ports)) + if (drm_WARN_ON(display->drm, intel_connector->panel.vbt.dsi.cabc_ports & ~intel_dsi->ports)) intel_connector->panel.vbt.dsi.cabc_ports &= intel_dsi->ports; for_each_dsi_port(port, intel_dsi->ports) { @@ -2046,7 +2050,7 @@ void icl_dsi_init(struct drm_i915_private *dev_priv, } if (!intel_dsi_vbt_init(intel_dsi, MIPI_DSI_GENERIC_PANEL_ID)) { - drm_dbg_kms(&dev_priv->drm, "no device found\n"); + drm_dbg_kms(display->drm, "no device found\n"); goto err; } diff --git a/drivers/gpu/drm/i915/display/icl_dsi.h b/drivers/gpu/drm/i915/display/icl_dsi.h index 43fa7d72eeb1..099fc50e35b4 100644 --- a/drivers/gpu/drm/i915/display/icl_dsi.h +++ b/drivers/gpu/drm/i915/display/icl_dsi.h @@ -6,11 +6,11 @@ #ifndef __ICL_DSI_H__ #define __ICL_DSI_H__ -struct drm_i915_private; struct intel_bios_encoder_data; struct intel_crtc_state; +struct intel_display; -void icl_dsi_init(struct drm_i915_private *dev_priv, +void icl_dsi_init(struct intel_display *display, const struct intel_bios_encoder_data *devdata); void icl_dsi_frame_update(struct intel_crtc_state *crtc_state); diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c index e979786aa5cf..5c2a7987cccb 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c @@ -790,7 +790,8 @@ skl_next_plane_to_commit(struct intel_atomic_state *state, return NULL; } -void intel_plane_update_noarm(struct intel_plane *plane, +void intel_plane_update_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -799,10 +800,11 @@ void intel_plane_update_noarm(struct intel_plane *plane, trace_intel_plane_update_noarm(plane, crtc); if (plane->update_noarm) - plane->update_noarm(plane, crtc_state, plane_state); + plane->update_noarm(dsb, plane, crtc_state, plane_state); } -void intel_plane_async_flip(struct intel_plane *plane, +void intel_plane_async_flip(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, bool async_flip) @@ -810,34 +812,37 @@ void intel_plane_async_flip(struct intel_plane *plane, struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); trace_intel_plane_async_flip(plane, crtc, async_flip); - plane->async_flip(plane, crtc_state, plane_state, async_flip); + plane->async_flip(dsb, plane, crtc_state, plane_state, async_flip); } -void intel_plane_update_arm(struct intel_plane *plane, +void intel_plane_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); if (crtc_state->do_async_flip && plane->async_flip) { - intel_plane_async_flip(plane, crtc_state, plane_state, true); + intel_plane_async_flip(dsb, plane, crtc_state, plane_state, true); return; } trace_intel_plane_update_arm(plane, crtc); - plane->update_arm(plane, crtc_state, plane_state); + plane->update_arm(dsb, plane, crtc_state, plane_state); } -void intel_plane_disable_arm(struct intel_plane *plane, +void intel_plane_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); trace_intel_plane_disable_arm(plane, crtc); - plane->disable_arm(plane, crtc_state); + plane->disable_arm(dsb, plane, crtc_state); } -void intel_crtc_planes_update_noarm(struct intel_atomic_state *state, +void intel_crtc_planes_update_noarm(struct intel_dsb *dsb, + struct intel_atomic_state *state, struct intel_crtc *crtc) { struct intel_crtc_state *new_crtc_state = @@ -862,11 +867,13 @@ void intel_crtc_planes_update_noarm(struct intel_atomic_state *state, /* TODO: for mailbox updates this should be skipped */ if (new_plane_state->uapi.visible || new_plane_state->planar_slave) - intel_plane_update_noarm(plane, new_crtc_state, new_plane_state); + intel_plane_update_noarm(dsb, plane, + new_crtc_state, new_plane_state); } } -static void skl_crtc_planes_update_arm(struct intel_atomic_state *state, +static void skl_crtc_planes_update_arm(struct intel_dsb *dsb, + struct intel_atomic_state *state, struct intel_crtc *crtc) { struct intel_crtc_state *old_crtc_state = @@ -893,13 +900,14 @@ static void skl_crtc_planes_update_arm(struct intel_atomic_state *state, */ if (new_plane_state->uapi.visible || new_plane_state->planar_slave) - intel_plane_update_arm(plane, new_crtc_state, new_plane_state); + intel_plane_update_arm(dsb, plane, new_crtc_state, new_plane_state); else - intel_plane_disable_arm(plane, new_crtc_state); + intel_plane_disable_arm(dsb, plane, new_crtc_state); } } -static void i9xx_crtc_planes_update_arm(struct intel_atomic_state *state, +static void i9xx_crtc_planes_update_arm(struct intel_dsb *dsb, + struct intel_atomic_state *state, struct intel_crtc *crtc) { struct intel_crtc_state *new_crtc_state = @@ -919,21 +927,22 @@ static void i9xx_crtc_planes_update_arm(struct intel_atomic_state *state, * would have to be called here as well. */ if (new_plane_state->uapi.visible) - intel_plane_update_arm(plane, new_crtc_state, new_plane_state); + intel_plane_update_arm(dsb, plane, new_crtc_state, new_plane_state); else - intel_plane_disable_arm(plane, new_crtc_state); + intel_plane_disable_arm(dsb, plane, new_crtc_state); } } -void intel_crtc_planes_update_arm(struct intel_atomic_state *state, +void intel_crtc_planes_update_arm(struct intel_dsb *dsb, + struct intel_atomic_state *state, struct intel_crtc *crtc) { struct drm_i915_private *i915 = to_i915(state->base.dev); if (DISPLAY_VER(i915) >= 9) - skl_crtc_planes_update_arm(state, crtc); + skl_crtc_planes_update_arm(dsb, state, crtc); else - i9xx_crtc_planes_update_arm(state, crtc); + i9xx_crtc_planes_update_arm(dsb, state, crtc); } int intel_atomic_plane_check_clipping(struct intel_plane_state *plane_state, diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.h b/drivers/gpu/drm/i915/display/intel_atomic_plane.h index 6c4fe3596465..0f982f452ff3 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h @@ -14,6 +14,7 @@ struct drm_rect; struct intel_atomic_state; struct intel_crtc; struct intel_crtc_state; +struct intel_dsb; struct intel_plane; struct intel_plane_state; enum plane_id; @@ -32,26 +33,32 @@ void intel_plane_copy_uapi_to_hw_state(struct intel_plane_state *plane_state, struct intel_crtc *crtc); void intel_plane_copy_hw_state(struct intel_plane_state *plane_state, const struct intel_plane_state *from_plane_state); -void intel_plane_async_flip(struct intel_plane *plane, +void intel_plane_async_flip(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, bool async_flip); -void intel_plane_update_noarm(struct intel_plane *plane, +void intel_plane_update_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state); -void intel_plane_update_arm(struct intel_plane *plane, +void intel_plane_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state); -void intel_plane_disable_arm(struct intel_plane *plane, +void intel_plane_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state); struct intel_plane *intel_plane_alloc(void); void intel_plane_free(struct intel_plane *plane); struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane); void intel_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state); -void intel_crtc_planes_update_noarm(struct intel_atomic_state *state, +void intel_crtc_planes_update_noarm(struct intel_dsb *dsb, + struct intel_atomic_state *state, struct intel_crtc *crtc); -void intel_crtc_planes_update_arm(struct intel_atomic_state *state, +void intel_crtc_planes_update_arm(struct intel_dsb *dsbx, + struct intel_atomic_state *state, struct intel_crtc *crtc); int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state, struct intel_crtc_state *crtc_state, diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c index ec55cb651d44..1fbe3cd452c1 100644 --- a/drivers/gpu/drm/i915/display/intel_color.c +++ b/drivers/gpu/drm/i915/display/intel_color.c @@ -1912,6 +1912,23 @@ void intel_color_post_update(const struct intel_crtc_state *crtc_state) i915->display.funcs.color->color_post_update(crtc_state); } +void intel_color_modeset(const struct intel_crtc_state *crtc_state) +{ + struct intel_display *display = to_intel_display(crtc_state); + + intel_color_load_luts(crtc_state); + intel_color_commit_noarm(crtc_state); + intel_color_commit_arm(crtc_state); + + if (DISPLAY_VER(display) < 9) { + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct intel_plane *plane = to_intel_plane(crtc->base.primary); + + /* update DSPCNTR to configure gamma/csc for pipe bottom color */ + plane->disable_arm(NULL, plane, crtc_state); + } +} + void intel_color_prepare_commit(struct intel_atomic_state *state, struct intel_crtc *crtc) { diff --git a/drivers/gpu/drm/i915/display/intel_color.h b/drivers/gpu/drm/i915/display/intel_color.h index 79f230a1709a..ab3aaec06a2a 100644 --- a/drivers/gpu/drm/i915/display/intel_color.h +++ b/drivers/gpu/drm/i915/display/intel_color.h @@ -28,6 +28,7 @@ void intel_color_commit_noarm(const struct intel_crtc_state *crtc_state); void intel_color_commit_arm(const struct intel_crtc_state *crtc_state); void intel_color_post_update(const struct intel_crtc_state *crtc_state); void intel_color_load_luts(const struct intel_crtc_state *crtc_state); +void intel_color_modeset(const struct intel_crtc_state *crtc_state); void intel_color_get_config(struct intel_crtc_state *crtc_state); bool intel_color_lut_equal(const struct intel_crtc_state *crtc_state, const struct drm_property_blob *blob1, diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c index 9ad53e1cbbd0..aeadb834d332 100644 --- a/drivers/gpu/drm/i915/display/intel_cursor.c +++ b/drivers/gpu/drm/i915/display/intel_cursor.c @@ -275,7 +275,8 @@ static int i845_check_cursor(struct intel_crtc_state *crtc_state, } /* TODO: split into noarm+arm pair */ -static void i845_cursor_update_arm(struct intel_plane *plane, +static void i845_cursor_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -315,10 +316,11 @@ static void i845_cursor_update_arm(struct intel_plane *plane, } } -static void i845_cursor_disable_arm(struct intel_plane *plane, +static void i845_cursor_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { - i845_cursor_update_arm(plane, crtc_state, NULL); + i845_cursor_update_arm(dsb, plane, crtc_state, NULL); } static bool i845_cursor_get_hw_state(struct intel_plane *plane, @@ -527,22 +529,25 @@ static int i9xx_check_cursor(struct intel_crtc_state *crtc_state, return 0; } -static void i9xx_cursor_disable_sel_fetch_arm(struct intel_plane *plane, +static void i9xx_cursor_disable_sel_fetch_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum pipe pipe = plane->pipe; if (!crtc_state->enable_psr2_sel_fetch) return; - intel_de_write_fw(dev_priv, SEL_FETCH_CUR_CTL(pipe), 0); + intel_de_write_dsb(display, dsb, SEL_FETCH_CUR_CTL(pipe), 0); } -static void wa_16021440873(struct intel_plane *plane, +static void wa_16021440873(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { + struct intel_display *display = to_intel_display(plane->base.dev); struct drm_i915_private *dev_priv = to_i915(plane->base.dev); u32 ctl = plane_state->ctl; int et_y_position = drm_rect_height(&crtc_state->pipe_src) + 1; @@ -551,16 +556,18 @@ static void wa_16021440873(struct intel_plane *plane, ctl &= ~MCURSOR_MODE_MASK; ctl |= MCURSOR_MODE_64_2B; - intel_de_write_fw(dev_priv, SEL_FETCH_CUR_CTL(pipe), ctl); + intel_de_write_dsb(display, dsb, SEL_FETCH_CUR_CTL(pipe), ctl); - intel_de_write(dev_priv, CURPOS_ERLY_TPT(dev_priv, pipe), - CURSOR_POS_Y(et_y_position)); + intel_de_write_dsb(display, dsb, CURPOS_ERLY_TPT(dev_priv, pipe), + CURSOR_POS_Y(et_y_position)); } -static void i9xx_cursor_update_sel_fetch_arm(struct intel_plane *plane, +static void i9xx_cursor_update_sel_fetch_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { + struct intel_display *display = to_intel_display(plane->base.dev); struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum pipe pipe = plane->pipe; @@ -571,19 +578,17 @@ static void i9xx_cursor_update_sel_fetch_arm(struct intel_plane *plane, if (crtc_state->enable_psr2_su_region_et) { u32 val = intel_cursor_position(crtc_state, plane_state, true); - intel_de_write_fw(dev_priv, - CURPOS_ERLY_TPT(dev_priv, pipe), - val); + + intel_de_write_dsb(display, dsb, CURPOS_ERLY_TPT(dev_priv, pipe), val); } - intel_de_write_fw(dev_priv, SEL_FETCH_CUR_CTL(pipe), - plane_state->ctl); + intel_de_write_dsb(display, dsb, SEL_FETCH_CUR_CTL(pipe), plane_state->ctl); } else { /* Wa_16021440873 */ if (crtc_state->enable_psr2_su_region_et) - wa_16021440873(plane, crtc_state, plane_state); + wa_16021440873(dsb, plane, crtc_state, plane_state); else - i9xx_cursor_disable_sel_fetch_arm(plane, crtc_state); + i9xx_cursor_disable_sel_fetch_arm(dsb, plane, crtc_state); } } @@ -610,9 +615,11 @@ static u32 skl_cursor_wm_reg_val(const struct skl_wm_level *level) return val; } -static void skl_write_cursor_wm(struct intel_plane *plane, +static void skl_write_cursor_wm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { + struct intel_display *display = to_intel_display(plane->base.dev); struct drm_i915_private *i915 = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; @@ -622,30 +629,32 @@ static void skl_write_cursor_wm(struct intel_plane *plane, int level; for (level = 0; level < i915->display.wm.num_levels; level++) - intel_de_write_fw(i915, CUR_WM(pipe, level), - skl_cursor_wm_reg_val(skl_plane_wm_level(pipe_wm, plane_id, level))); + intel_de_write_dsb(display, dsb, CUR_WM(pipe, level), + skl_cursor_wm_reg_val(skl_plane_wm_level(pipe_wm, plane_id, level))); - intel_de_write_fw(i915, CUR_WM_TRANS(pipe), - skl_cursor_wm_reg_val(skl_plane_trans_wm(pipe_wm, plane_id))); + intel_de_write_dsb(display, dsb, CUR_WM_TRANS(pipe), + skl_cursor_wm_reg_val(skl_plane_trans_wm(pipe_wm, plane_id))); if (HAS_HW_SAGV_WM(i915)) { const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id]; - intel_de_write_fw(i915, CUR_WM_SAGV(pipe), - skl_cursor_wm_reg_val(&wm->sagv.wm0)); - intel_de_write_fw(i915, CUR_WM_SAGV_TRANS(pipe), - skl_cursor_wm_reg_val(&wm->sagv.trans_wm)); + intel_de_write_dsb(display, dsb, CUR_WM_SAGV(pipe), + skl_cursor_wm_reg_val(&wm->sagv.wm0)); + intel_de_write_dsb(display, dsb, CUR_WM_SAGV_TRANS(pipe), + skl_cursor_wm_reg_val(&wm->sagv.trans_wm)); } - intel_de_write_fw(i915, CUR_BUF_CFG(pipe), - skl_cursor_ddb_reg_val(ddb)); + intel_de_write_dsb(display, dsb, CUR_BUF_CFG(pipe), + skl_cursor_ddb_reg_val(ddb)); } /* TODO: split into noarm+arm pair */ -static void i9xx_cursor_update_arm(struct intel_plane *plane, +static void i9xx_cursor_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { + struct intel_display *display = to_intel_display(plane->base.dev); struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum pipe pipe = plane->pipe; u32 cntl = 0, base = 0, pos = 0, fbc_ctl = 0; @@ -685,38 +694,36 @@ static void i9xx_cursor_update_arm(struct intel_plane *plane, */ if (DISPLAY_VER(dev_priv) >= 9) - skl_write_cursor_wm(plane, crtc_state); + skl_write_cursor_wm(dsb, plane, crtc_state); if (plane_state) - i9xx_cursor_update_sel_fetch_arm(plane, crtc_state, - plane_state); + i9xx_cursor_update_sel_fetch_arm(dsb, plane, crtc_state, plane_state); else - i9xx_cursor_disable_sel_fetch_arm(plane, crtc_state); + i9xx_cursor_disable_sel_fetch_arm(dsb, plane, crtc_state); if (plane->cursor.base != base || plane->cursor.size != fbc_ctl || plane->cursor.cntl != cntl) { if (HAS_CUR_FBC(dev_priv)) - intel_de_write_fw(dev_priv, - CUR_FBC_CTL(dev_priv, pipe), - fbc_ctl); - intel_de_write_fw(dev_priv, CURCNTR(dev_priv, pipe), cntl); - intel_de_write_fw(dev_priv, CURPOS(dev_priv, pipe), pos); - intel_de_write_fw(dev_priv, CURBASE(dev_priv, pipe), base); + intel_de_write_dsb(display, dsb, CUR_FBC_CTL(dev_priv, pipe), fbc_ctl); + intel_de_write_dsb(display, dsb, CURCNTR(dev_priv, pipe), cntl); + intel_de_write_dsb(display, dsb, CURPOS(dev_priv, pipe), pos); + intel_de_write_dsb(display, dsb, CURBASE(dev_priv, pipe), base); plane->cursor.base = base; plane->cursor.size = fbc_ctl; plane->cursor.cntl = cntl; } else { - intel_de_write_fw(dev_priv, CURPOS(dev_priv, pipe), pos); - intel_de_write_fw(dev_priv, CURBASE(dev_priv, pipe), base); + intel_de_write_dsb(display, dsb, CURPOS(dev_priv, pipe), pos); + intel_de_write_dsb(display, dsb, CURBASE(dev_priv, pipe), base); } } -static void i9xx_cursor_disable_arm(struct intel_plane *plane, +static void i9xx_cursor_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { - i9xx_cursor_update_arm(plane, crtc_state, NULL); + i9xx_cursor_update_arm(dsb, plane, crtc_state, NULL); } static bool i9xx_cursor_get_hw_state(struct intel_plane *plane, @@ -905,10 +912,10 @@ intel_legacy_cursor_update(struct drm_plane *_plane, } if (new_plane_state->uapi.visible) { - intel_plane_update_noarm(plane, crtc_state, new_plane_state); - intel_plane_update_arm(plane, crtc_state, new_plane_state); + intel_plane_update_noarm(NULL, plane, crtc_state, new_plane_state); + intel_plane_update_arm(NULL, plane, crtc_state, new_plane_state); } else { - intel_plane_disable_arm(plane, crtc_state); + intel_plane_disable_arm(NULL, plane, crtc_state); } local_irq_enable(); diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 2f1d9ce87ceb..34dee523f0b6 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -4888,7 +4888,7 @@ void intel_ddi_init(struct intel_display *display, if (!assert_has_icl_dsi(dev_priv)) return; - icl_dsi_init(dev_priv, devdata); + icl_dsi_init(display, devdata); return; } diff --git a/drivers/gpu/drm/i915/display/intel_de.h b/drivers/gpu/drm/i915/display/intel_de.h index e881bfeafb47..e017cd4a8168 100644 --- a/drivers/gpu/drm/i915/display/intel_de.h +++ b/drivers/gpu/drm/i915/display/intel_de.h @@ -8,6 +8,7 @@ #include "i915_drv.h" #include "i915_trace.h" +#include "intel_dsb.h" #include "intel_uncore.h" static inline struct intel_uncore *__to_uncore(struct intel_display *display) @@ -233,4 +234,14 @@ __intel_de_write_notrace(struct intel_display *display, i915_reg_t reg, } #define intel_de_write_notrace(p,...) __intel_de_write_notrace(__to_intel_display(p), __VA_ARGS__) +static __always_inline void +intel_de_write_dsb(struct intel_display *display, struct intel_dsb *dsb, + i915_reg_t reg, u32 val) +{ + if (dsb) + intel_dsb_reg_write(dsb, reg, val); + else + intel_de_write_fw(display, reg, val); +} + #endif /* __INTEL_DE_H__ */ diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 2c6d0da8a16f..3039ee03e1c7 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -135,7 +135,8 @@ static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state); static void intel_set_pipe_src_size(const struct intel_crtc_state *crtc_state); static void hsw_set_transconf(const struct intel_crtc_state *crtc_state); -static void bdw_set_pipe_misc(const struct intel_crtc_state *crtc_state); +static void bdw_set_pipe_misc(struct intel_dsb *dsb, + const struct intel_crtc_state *crtc_state); /* returns HPLL frequency in kHz */ int vlv_get_hpll_vco(struct drm_i915_private *dev_priv) @@ -715,7 +716,7 @@ void intel_plane_disable_noatomic(struct intel_crtc *crtc, if (DISPLAY_VER(dev_priv) == 2 && !crtc_state->active_planes) intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, false); - intel_plane_disable_arm(plane, crtc_state); + intel_plane_disable_arm(NULL, plane, crtc_state); intel_crtc_wait_for_next_vblank(crtc); } @@ -1172,8 +1173,8 @@ static void intel_crtc_async_flip_disable_wa(struct intel_atomic_state *state, * Apart from the async flip bit we want to * preserve the old state for the plane. */ - intel_plane_async_flip(plane, old_crtc_state, - old_plane_state, false); + intel_plane_async_flip(NULL, plane, + old_crtc_state, old_plane_state, false); need_vbl_wait = true; } } @@ -1315,7 +1316,7 @@ static void intel_crtc_disable_planes(struct intel_atomic_state *state, !(update_mask & BIT(plane->id))) continue; - intel_plane_disable_arm(plane, new_crtc_state); + intel_plane_disable_arm(NULL, plane, new_crtc_state); if (old_plane_state->uapi.visible) fb_bits |= plane->frontbuffer_bit; @@ -1502,14 +1503,6 @@ static void intel_encoders_update_pipe(struct intel_atomic_state *state, } } -static void intel_disable_primary_plane(const struct intel_crtc_state *crtc_state) -{ - struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct intel_plane *plane = to_intel_plane(crtc->base.primary); - - plane->disable_arm(plane, crtc_state); -} - static void ilk_configure_cpu_transcoder(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); @@ -1575,11 +1568,7 @@ static void ilk_crtc_enable(struct intel_atomic_state *state, * On ILK+ LUT must be loaded before the pipe is running but with * clocks enabled */ - intel_color_load_luts(new_crtc_state); - intel_color_commit_noarm(new_crtc_state); - intel_color_commit_arm(new_crtc_state); - /* update DSPCNTR to configure gamma for pipe bottom color */ - intel_disable_primary_plane(new_crtc_state); + intel_color_modeset(new_crtc_state); intel_initial_watermarks(state, crtc); intel_enable_transcoder(new_crtc_state); @@ -1716,7 +1705,7 @@ static void hsw_crtc_enable(struct intel_atomic_state *state, intel_set_pipe_src_size(pipe_crtc_state); if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv)) - bdw_set_pipe_misc(pipe_crtc_state); + bdw_set_pipe_misc(NULL, pipe_crtc_state); } if (!transcoder_is_dsi(cpu_transcoder)) @@ -1741,12 +1730,7 @@ static void hsw_crtc_enable(struct intel_atomic_state *state, * On ILK+ LUT must be loaded before the pipe is running but with * clocks enabled */ - intel_color_load_luts(pipe_crtc_state); - intel_color_commit_noarm(pipe_crtc_state); - intel_color_commit_arm(pipe_crtc_state); - /* update DSPCNTR to configure gamma/csc for pipe bottom color */ - if (DISPLAY_VER(dev_priv) < 9) - intel_disable_primary_plane(pipe_crtc_state); + intel_color_modeset(pipe_crtc_state); hsw_set_linetime_wm(pipe_crtc_state); @@ -2147,11 +2131,7 @@ static void valleyview_crtc_enable(struct intel_atomic_state *state, i9xx_pfit_enable(new_crtc_state); - intel_color_load_luts(new_crtc_state); - intel_color_commit_noarm(new_crtc_state); - intel_color_commit_arm(new_crtc_state); - /* update DSPCNTR to configure gamma for pipe bottom color */ - intel_disable_primary_plane(new_crtc_state); + intel_color_modeset(new_crtc_state); intel_initial_watermarks(state, crtc); intel_enable_transcoder(new_crtc_state); @@ -2187,11 +2167,7 @@ static void i9xx_crtc_enable(struct intel_atomic_state *state, i9xx_pfit_enable(new_crtc_state); - intel_color_load_luts(new_crtc_state); - intel_color_commit_noarm(new_crtc_state); - intel_color_commit_arm(new_crtc_state); - /* update DSPCNTR to configure gamma for pipe bottom color */ - intel_disable_primary_plane(new_crtc_state); + intel_color_modeset(new_crtc_state); if (!intel_initial_watermarks(state, crtc)) intel_update_watermarks(dev_priv); @@ -3246,9 +3222,11 @@ static void hsw_set_transconf(const struct intel_crtc_state *crtc_state) intel_de_posting_read(dev_priv, TRANSCONF(dev_priv, cpu_transcoder)); } -static void bdw_set_pipe_misc(const struct intel_crtc_state *crtc_state) +static void bdw_set_pipe_misc(struct intel_dsb *dsb, + const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct intel_display *display = to_intel_display(crtc->base.dev); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); u32 val = 0; @@ -3293,7 +3271,7 @@ static void bdw_set_pipe_misc(const struct intel_crtc_state *crtc_state) if (IS_BROADWELL(dev_priv)) val |= PIPE_MISC_PSR_MASK_SPRITE_ENABLE; - intel_de_write(dev_priv, PIPE_MISC(crtc->pipe), val); + intel_de_write_dsb(display, dsb, PIPE_MISC(crtc->pipe), val); } int bdw_get_pipe_misc_bpp(struct intel_crtc *crtc) @@ -6846,7 +6824,7 @@ static void commit_pipe_pre_planes(struct intel_atomic_state *state, intel_color_commit_arm(new_crtc_state); if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv)) - bdw_set_pipe_misc(new_crtc_state); + bdw_set_pipe_misc(NULL, new_crtc_state); if (intel_crtc_needs_fastset(new_crtc_state)) intel_pipe_fastset(old_crtc_state, new_crtc_state); @@ -6946,7 +6924,7 @@ static void intel_pre_update_crtc(struct intel_atomic_state *state, intel_crtc_needs_color_update(new_crtc_state)) intel_color_commit_noarm(new_crtc_state); - intel_crtc_planes_update_noarm(state, crtc); + intel_crtc_planes_update_noarm(NULL, state, crtc); } static void intel_update_crtc(struct intel_atomic_state *state, @@ -6962,7 +6940,7 @@ static void intel_update_crtc(struct intel_atomic_state *state, commit_pipe_pre_planes(state, crtc); - intel_crtc_planes_update_arm(state, crtc); + intel_crtc_planes_update_arm(NULL, state, crtc); commit_pipe_post_planes(state, crtc); diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index f29e5dc3db91..3e24d2e90d3c 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1036,6 +1036,10 @@ struct intel_csc_matrix { u16 postoff[3]; }; +void intel_io_mmio_fw_write(void *ctx, i915_reg_t reg, u32 val); + +typedef void (*intel_io_reg_write)(void *ctx, i915_reg_t reg, u32 val); + struct intel_crtc_state { /* * uapi (drm) state. This is the software state shown to userspace. @@ -1578,22 +1582,26 @@ struct intel_plane { u32 pixel_format, u64 modifier, unsigned int rotation); /* Write all non-self arming plane registers */ - void (*update_noarm)(struct intel_plane *plane, + void (*update_noarm)(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state); /* Write all self-arming plane registers */ - void (*update_arm)(struct intel_plane *plane, + void (*update_arm)(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state); /* Disable the plane, must arm */ - void (*disable_arm)(struct intel_plane *plane, + void (*disable_arm)(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state); bool (*get_hw_state)(struct intel_plane *plane, enum pipe *pipe); int (*check_plane)(struct intel_crtc_state *crtc_state, struct intel_plane_state *plane_state); int (*min_cdclk)(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state); - void (*async_flip)(struct intel_plane *plane, + void (*async_flip)(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, bool async_flip); diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c index e657b09ede99..e6fadcef58e0 100644 --- a/drivers/gpu/drm/i915/display/intel_sprite.c +++ b/drivers/gpu/drm/i915/display/intel_sprite.c @@ -378,7 +378,8 @@ static void vlv_sprite_update_gamma(const struct intel_plane_state *plane_state) } static void -vlv_sprite_update_noarm(struct intel_plane *plane, +vlv_sprite_update_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -399,7 +400,8 @@ vlv_sprite_update_noarm(struct intel_plane *plane, } static void -vlv_sprite_update_arm(struct intel_plane *plane, +vlv_sprite_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -449,7 +451,8 @@ vlv_sprite_update_arm(struct intel_plane *plane, } static void -vlv_sprite_disable_arm(struct intel_plane *plane, +vlv_sprite_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { struct intel_display *display = to_intel_display(plane->base.dev); @@ -795,7 +798,8 @@ static void ivb_sprite_update_gamma(const struct intel_plane_state *plane_state) } static void -ivb_sprite_update_noarm(struct intel_plane *plane, +ivb_sprite_update_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -826,7 +830,8 @@ ivb_sprite_update_noarm(struct intel_plane *plane, } static void -ivb_sprite_update_arm(struct intel_plane *plane, +ivb_sprite_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -874,7 +879,8 @@ ivb_sprite_update_arm(struct intel_plane *plane, } static void -ivb_sprite_disable_arm(struct intel_plane *plane, +ivb_sprite_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { struct intel_display *display = to_intel_display(plane->base.dev); @@ -1133,7 +1139,8 @@ static void ilk_sprite_update_gamma(const struct intel_plane_state *plane_state) } static void -g4x_sprite_update_noarm(struct intel_plane *plane, +g4x_sprite_update_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -1162,7 +1169,8 @@ g4x_sprite_update_noarm(struct intel_plane *plane, } static void -g4x_sprite_update_arm(struct intel_plane *plane, +g4x_sprite_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { @@ -1206,7 +1214,8 @@ g4x_sprite_update_arm(struct intel_plane *plane, } static void -g4x_sprite_disable_arm(struct intel_plane *plane, +g4x_sprite_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { struct intel_display *display = to_intel_display(plane->base.dev); diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c index 62a5287ea1d9..7f77a76309bd 100644 --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c @@ -589,11 +589,11 @@ static u32 skl_plane_min_alignment(struct intel_plane *plane, * in full-range YCbCr. */ static void -icl_program_input_csc(struct intel_plane *plane, - const struct intel_crtc_state *crtc_state, +icl_program_input_csc(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_plane_state *plane_state) { - struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum pipe pipe = plane->pipe; enum plane_id plane_id = plane->id; @@ -637,31 +637,31 @@ icl_program_input_csc(struct intel_plane *plane, }; const u16 *csc = input_csc_matrix[plane_state->hw.color_encoding]; - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 0), - ROFF(csc[0]) | GOFF(csc[1])); - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 1), - BOFF(csc[2])); - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 2), - ROFF(csc[3]) | GOFF(csc[4])); - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 3), - BOFF(csc[5])); - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 4), - ROFF(csc[6]) | GOFF(csc[7])); - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 5), - BOFF(csc[8])); - - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 0), - PREOFF_YUV_TO_RGB_HI); - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 1), - PREOFF_YUV_TO_RGB_ME); - intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 2), - PREOFF_YUV_TO_RGB_LO); - intel_de_write_fw(dev_priv, - PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 0), 0x0); - intel_de_write_fw(dev_priv, - PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 1), 0x0); - intel_de_write_fw(dev_priv, - PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 2), 0x0); + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 0), + ROFF(csc[0]) | GOFF(csc[1])); + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 1), + BOFF(csc[2])); + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 2), + ROFF(csc[3]) | GOFF(csc[4])); + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 3), + BOFF(csc[5])); + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 4), + ROFF(csc[6]) | GOFF(csc[7])); + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 5), + BOFF(csc[8])); + + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 0), + PREOFF_YUV_TO_RGB_HI); + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 1), + PREOFF_YUV_TO_RGB_ME); + intel_de_write_dsb(display, dsb, PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 2), + PREOFF_YUV_TO_RGB_LO); + intel_de_write_dsb(display, dsb, + PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 0), 0x0); + intel_de_write_dsb(display, dsb, + PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 1), 0x0); + intel_de_write_dsb(display, dsb, + PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 2), 0x0); } static unsigned int skl_plane_stride_mult(const struct drm_framebuffer *fb, @@ -715,9 +715,11 @@ static u32 skl_plane_wm_reg_val(const struct skl_wm_level *level) return val; } -static void skl_write_plane_wm(struct intel_plane *plane, +static void skl_write_plane_wm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { + struct intel_display *display = to_intel_display(plane->base.dev); struct drm_i915_private *i915 = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; @@ -729,71 +731,75 @@ static void skl_write_plane_wm(struct intel_plane *plane, int level; for (level = 0; level < i915->display.wm.num_levels; level++) - intel_de_write_fw(i915, PLANE_WM(pipe, plane_id, level), - skl_plane_wm_reg_val(skl_plane_wm_level(pipe_wm, plane_id, level))); + intel_de_write_dsb(display, dsb, PLANE_WM(pipe, plane_id, level), + skl_plane_wm_reg_val(skl_plane_wm_level(pipe_wm, plane_id, level))); - intel_de_write_fw(i915, PLANE_WM_TRANS(pipe, plane_id), - skl_plane_wm_reg_val(skl_plane_trans_wm(pipe_wm, plane_id))); + intel_de_write_dsb(display, dsb, PLANE_WM_TRANS(pipe, plane_id), + skl_plane_wm_reg_val(skl_plane_trans_wm(pipe_wm, plane_id))); if (HAS_HW_SAGV_WM(i915)) { const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id]; - intel_de_write_fw(i915, PLANE_WM_SAGV(pipe, plane_id), - skl_plane_wm_reg_val(&wm->sagv.wm0)); - intel_de_write_fw(i915, PLANE_WM_SAGV_TRANS(pipe, plane_id), - skl_plane_wm_reg_val(&wm->sagv.trans_wm)); + intel_de_write_dsb(display, dsb, PLANE_WM_SAGV(pipe, plane_id), + skl_plane_wm_reg_val(&wm->sagv.wm0)); + intel_de_write_dsb(display, dsb, PLANE_WM_SAGV_TRANS(pipe, plane_id), + skl_plane_wm_reg_val(&wm->sagv.trans_wm)); } - intel_de_write_fw(i915, PLANE_BUF_CFG(pipe, plane_id), - skl_plane_ddb_reg_val(ddb)); + intel_de_write_dsb(display, dsb, PLANE_BUF_CFG(pipe, plane_id), + skl_plane_ddb_reg_val(ddb)); if (DISPLAY_VER(i915) < 11) - intel_de_write_fw(i915, PLANE_NV12_BUF_CFG(pipe, plane_id), - skl_plane_ddb_reg_val(ddb_y)); + intel_de_write_dsb(display, dsb, PLANE_NV12_BUF_CFG(pipe, plane_id), + skl_plane_ddb_reg_val(ddb_y)); } static void -skl_plane_disable_arm(struct intel_plane *plane, +skl_plane_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; - skl_write_plane_wm(plane, crtc_state); + skl_write_plane_wm(dsb, plane, crtc_state); - intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), 0); - intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), 0); + intel_de_write_dsb(display, dsb, PLANE_CTL(pipe, plane_id), 0); + intel_de_write_dsb(display, dsb, PLANE_SURF(pipe, plane_id), 0); } -static void icl_plane_disable_sel_fetch_arm(struct intel_plane *plane, +static void icl_plane_disable_sel_fetch_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *i915 = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum pipe pipe = plane->pipe; if (!crtc_state->enable_psr2_sel_fetch) return; - intel_de_write_fw(i915, SEL_FETCH_PLANE_CTL(pipe, plane->id), 0); + intel_de_write_dsb(display, dsb, SEL_FETCH_PLANE_CTL(pipe, plane->id), 0); } static void -icl_plane_disable_arm(struct intel_plane *plane, +icl_plane_disable_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { + struct intel_display *display = to_intel_display(plane->base.dev); struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; if (icl_is_hdr_plane(dev_priv, plane_id)) - intel_de_write_fw(dev_priv, PLANE_CUS_CTL(pipe, plane_id), 0); + intel_de_write_dsb(display, dsb, PLANE_CUS_CTL(pipe, plane_id), 0); - skl_write_plane_wm(plane, crtc_state); + skl_write_plane_wm(dsb, plane, crtc_state); - icl_plane_disable_sel_fetch_arm(plane, crtc_state); - intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), 0); - intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), 0); + icl_plane_disable_sel_fetch_arm(dsb, plane, crtc_state); + intel_de_write_dsb(display, dsb, PLANE_CTL(pipe, plane_id), 0); + intel_de_write_dsb(display, dsb, PLANE_SURF(pipe, plane_id), 0); } static bool @@ -1230,28 +1236,30 @@ static u32 skl_plane_keymsk(const struct intel_plane_state *plane_state) return keymsk; } -static void icl_plane_csc_load_black(struct intel_plane *plane) +static void icl_plane_csc_load_black(struct intel_dsb *dsb, + struct intel_plane *plane, + const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *i915 = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; - intel_de_write_fw(i915, PLANE_CSC_COEFF(pipe, plane_id, 0), 0); - intel_de_write_fw(i915, PLANE_CSC_COEFF(pipe, plane_id, 1), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_COEFF(pipe, plane_id, 0), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_COEFF(pipe, plane_id, 1), 0); - intel_de_write_fw(i915, PLANE_CSC_COEFF(pipe, plane_id, 2), 0); - intel_de_write_fw(i915, PLANE_CSC_COEFF(pipe, plane_id, 3), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_COEFF(pipe, plane_id, 2), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_COEFF(pipe, plane_id, 3), 0); - intel_de_write_fw(i915, PLANE_CSC_COEFF(pipe, plane_id, 4), 0); - intel_de_write_fw(i915, PLANE_CSC_COEFF(pipe, plane_id, 5), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_COEFF(pipe, plane_id, 4), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_COEFF(pipe, plane_id, 5), 0); - intel_de_write_fw(i915, PLANE_CSC_PREOFF(pipe, plane_id, 0), 0); - intel_de_write_fw(i915, PLANE_CSC_PREOFF(pipe, plane_id, 1), 0); - intel_de_write_fw(i915, PLANE_CSC_PREOFF(pipe, plane_id, 2), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_PREOFF(pipe, plane_id, 0), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_PREOFF(pipe, plane_id, 1), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_PREOFF(pipe, plane_id, 2), 0); - intel_de_write_fw(i915, PLANE_CSC_POSTOFF(pipe, plane_id, 0), 0); - intel_de_write_fw(i915, PLANE_CSC_POSTOFF(pipe, plane_id, 1), 0); - intel_de_write_fw(i915, PLANE_CSC_POSTOFF(pipe, plane_id, 2), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_POSTOFF(pipe, plane_id, 0), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_POSTOFF(pipe, plane_id, 1), 0); + intel_de_write_dsb(display, dsb, PLANE_CSC_POSTOFF(pipe, plane_id, 2), 0); } static int icl_plane_color_plane(const struct intel_plane_state *plane_state) @@ -1264,11 +1272,12 @@ static int icl_plane_color_plane(const struct intel_plane_state *plane_state) } static void -skl_plane_update_noarm(struct intel_plane *plane, +skl_plane_update_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { - struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; u32 stride = skl_plane_stride(plane_state, 0); @@ -1283,21 +1292,23 @@ skl_plane_update_noarm(struct intel_plane *plane, crtc_y = 0; } - intel_de_write_fw(dev_priv, PLANE_STRIDE(pipe, plane_id), - PLANE_STRIDE_(stride)); - intel_de_write_fw(dev_priv, PLANE_POS(pipe, plane_id), - PLANE_POS_Y(crtc_y) | PLANE_POS_X(crtc_x)); - intel_de_write_fw(dev_priv, PLANE_SIZE(pipe, plane_id), - PLANE_HEIGHT(src_h - 1) | PLANE_WIDTH(src_w - 1)); + intel_de_write_dsb(display, dsb, PLANE_STRIDE(pipe, plane_id), + PLANE_STRIDE_(stride)); + intel_de_write_dsb(display, dsb, PLANE_POS(pipe, plane_id), + PLANE_POS_Y(crtc_y) | PLANE_POS_X(crtc_x)); + intel_de_write_dsb(display, dsb, PLANE_SIZE(pipe, plane_id), + PLANE_HEIGHT(src_h - 1) | PLANE_WIDTH(src_w - 1)); - skl_write_plane_wm(plane, crtc_state); + skl_write_plane_wm(dsb, plane, crtc_state); } static void -skl_plane_update_arm(struct intel_plane *plane, +skl_plane_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { + struct intel_display *display = to_intel_display(plane->base.dev); struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; @@ -1317,22 +1328,26 @@ skl_plane_update_arm(struct intel_plane *plane, plane_color_ctl = plane_state->color_ctl | glk_plane_color_ctl_crtc(crtc_state); - intel_de_write_fw(dev_priv, PLANE_KEYVAL(pipe, plane_id), skl_plane_keyval(plane_state)); - intel_de_write_fw(dev_priv, PLANE_KEYMSK(pipe, plane_id), skl_plane_keymsk(plane_state)); - intel_de_write_fw(dev_priv, PLANE_KEYMAX(pipe, plane_id), skl_plane_keymax(plane_state)); + intel_de_write_dsb(display, dsb, PLANE_KEYVAL(pipe, plane_id), + skl_plane_keyval(plane_state)); + intel_de_write_dsb(display, dsb, PLANE_KEYMSK(pipe, plane_id), + skl_plane_keymsk(plane_state)); + intel_de_write_dsb(display, dsb, PLANE_KEYMAX(pipe, plane_id), + skl_plane_keymax(plane_state)); - intel_de_write_fw(dev_priv, PLANE_OFFSET(pipe, plane_id), - PLANE_OFFSET_Y(y) | PLANE_OFFSET_X(x)); + intel_de_write_dsb(display, dsb, PLANE_OFFSET(pipe, plane_id), + PLANE_OFFSET_Y(y) | PLANE_OFFSET_X(x)); - intel_de_write_fw(dev_priv, PLANE_AUX_DIST(pipe, plane_id), - skl_plane_aux_dist(plane_state, 0)); + intel_de_write_dsb(display, dsb, PLANE_AUX_DIST(pipe, plane_id), + skl_plane_aux_dist(plane_state, 0)); - intel_de_write_fw(dev_priv, PLANE_AUX_OFFSET(pipe, plane_id), - PLANE_OFFSET_Y(plane_state->view.color_plane[1].y) | - PLANE_OFFSET_X(plane_state->view.color_plane[1].x)); + intel_de_write_dsb(display, dsb, PLANE_AUX_OFFSET(pipe, plane_id), + PLANE_OFFSET_Y(plane_state->view.color_plane[1].y) | + PLANE_OFFSET_X(plane_state->view.color_plane[1].x)); if (DISPLAY_VER(dev_priv) >= 10) - intel_de_write_fw(dev_priv, PLANE_COLOR_CTL(pipe, plane_id), plane_color_ctl); + intel_de_write_dsb(display, dsb, PLANE_COLOR_CTL(pipe, plane_id), + plane_color_ctl); /* * Enable the scaler before the plane so that we don't @@ -1349,17 +1364,19 @@ skl_plane_update_arm(struct intel_plane *plane, * disabled. Try to make the plane enable atomic by writing * the control register just before the surface register. */ - intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl); - intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), - skl_plane_surf(plane_state, 0)); + intel_de_write_dsb(display, dsb, PLANE_CTL(pipe, plane_id), + plane_ctl); + intel_de_write_dsb(display, dsb, PLANE_SURF(pipe, plane_id), + skl_plane_surf(plane_state, 0)); } -static void icl_plane_update_sel_fetch_noarm(struct intel_plane *plane, +static void icl_plane_update_sel_fetch_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, int color_plane) { - struct drm_i915_private *i915 = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum pipe pipe = plane->pipe; const struct drm_rect *clip; u32 val; @@ -1376,7 +1393,7 @@ static void icl_plane_update_sel_fetch_noarm(struct intel_plane *plane, y = (clip->y1 + plane_state->uapi.dst.y1); val = y << 16; val |= plane_state->uapi.dst.x1; - intel_de_write_fw(i915, SEL_FETCH_PLANE_POS(pipe, plane->id), val); + intel_de_write_dsb(display, dsb, SEL_FETCH_PLANE_POS(pipe, plane->id), val); x = plane_state->view.color_plane[color_plane].x; @@ -1391,20 +1408,21 @@ static void icl_plane_update_sel_fetch_noarm(struct intel_plane *plane, val = y << 16 | x; - intel_de_write_fw(i915, SEL_FETCH_PLANE_OFFSET(pipe, plane->id), - val); + intel_de_write_dsb(display, dsb, SEL_FETCH_PLANE_OFFSET(pipe, plane->id), val); /* Sizes are 0 based */ val = (drm_rect_height(clip) - 1) << 16; val |= (drm_rect_width(&plane_state->uapi.src) >> 16) - 1; - intel_de_write_fw(i915, SEL_FETCH_PLANE_SIZE(pipe, plane->id), val); + intel_de_write_dsb(display, dsb, SEL_FETCH_PLANE_SIZE(pipe, plane->id), val); } static void -icl_plane_update_noarm(struct intel_plane *plane, +icl_plane_update_noarm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { + struct intel_display *display = to_intel_display(plane->base.dev); struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; @@ -1428,76 +1446,82 @@ icl_plane_update_noarm(struct intel_plane *plane, crtc_y = 0; } - intel_de_write_fw(dev_priv, PLANE_STRIDE(pipe, plane_id), - PLANE_STRIDE_(stride)); - intel_de_write_fw(dev_priv, PLANE_POS(pipe, plane_id), - PLANE_POS_Y(crtc_y) | PLANE_POS_X(crtc_x)); - intel_de_write_fw(dev_priv, PLANE_SIZE(pipe, plane_id), - PLANE_HEIGHT(src_h - 1) | PLANE_WIDTH(src_w - 1)); + intel_de_write_dsb(display, dsb, PLANE_STRIDE(pipe, plane_id), + PLANE_STRIDE_(stride)); + intel_de_write_dsb(display, dsb, PLANE_POS(pipe, plane_id), + PLANE_POS_Y(crtc_y) | PLANE_POS_X(crtc_x)); + intel_de_write_dsb(display, dsb, PLANE_SIZE(pipe, plane_id), + PLANE_HEIGHT(src_h - 1) | PLANE_WIDTH(src_w - 1)); - intel_de_write_fw(dev_priv, PLANE_KEYVAL(pipe, plane_id), skl_plane_keyval(plane_state)); - intel_de_write_fw(dev_priv, PLANE_KEYMSK(pipe, plane_id), skl_plane_keymsk(plane_state)); - intel_de_write_fw(dev_priv, PLANE_KEYMAX(pipe, plane_id), skl_plane_keymax(plane_state)); + intel_de_write_dsb(display, dsb, PLANE_KEYVAL(pipe, plane_id), + skl_plane_keyval(plane_state)); + intel_de_write_dsb(display, dsb, PLANE_KEYMSK(pipe, plane_id), + skl_plane_keymsk(plane_state)); + intel_de_write_dsb(display, dsb, PLANE_KEYMAX(pipe, plane_id), + skl_plane_keymax(plane_state)); - intel_de_write_fw(dev_priv, PLANE_OFFSET(pipe, plane_id), - PLANE_OFFSET_Y(y) | PLANE_OFFSET_X(x)); + intel_de_write_dsb(display, dsb, PLANE_OFFSET(pipe, plane_id), + PLANE_OFFSET_Y(y) | PLANE_OFFSET_X(x)); if (intel_fb_is_rc_ccs_cc_modifier(fb->modifier)) { - intel_de_write_fw(dev_priv, PLANE_CC_VAL(pipe, plane_id, 0), - lower_32_bits(plane_state->ccval)); - intel_de_write_fw(dev_priv, PLANE_CC_VAL(pipe, plane_id, 1), - upper_32_bits(plane_state->ccval)); + intel_de_write_dsb(display, dsb, PLANE_CC_VAL(pipe, plane_id, 0), + lower_32_bits(plane_state->ccval)); + intel_de_write_dsb(display, dsb, PLANE_CC_VAL(pipe, plane_id, 1), + upper_32_bits(plane_state->ccval)); } /* FLAT CCS doesn't need to program AUX_DIST */ if (!HAS_FLAT_CCS(dev_priv) && DISPLAY_VER(dev_priv) < 20) - intel_de_write_fw(dev_priv, PLANE_AUX_DIST(pipe, plane_id), - skl_plane_aux_dist(plane_state, color_plane)); + intel_de_write_dsb(display, dsb, PLANE_AUX_DIST(pipe, plane_id), + skl_plane_aux_dist(plane_state, color_plane)); if (icl_is_hdr_plane(dev_priv, plane_id)) - intel_de_write_fw(dev_priv, PLANE_CUS_CTL(pipe, plane_id), - plane_state->cus_ctl); + intel_de_write_dsb(display, dsb, PLANE_CUS_CTL(pipe, plane_id), + plane_state->cus_ctl); - intel_de_write_fw(dev_priv, PLANE_COLOR_CTL(pipe, plane_id), plane_color_ctl); + intel_de_write_dsb(display, dsb, PLANE_COLOR_CTL(pipe, plane_id), + plane_color_ctl); if (fb->format->is_yuv && icl_is_hdr_plane(dev_priv, plane_id)) - icl_program_input_csc(plane, crtc_state, plane_state); + icl_program_input_csc(dsb, plane, plane_state); - skl_write_plane_wm(plane, crtc_state); + skl_write_plane_wm(dsb, plane, crtc_state); /* * FIXME: pxp session invalidation can hit any time even at time of commit * or after the commit, display content will be garbage. */ if (plane_state->force_black) - icl_plane_csc_load_black(plane); + icl_plane_csc_load_black(dsb, plane, crtc_state); - icl_plane_update_sel_fetch_noarm(plane, crtc_state, plane_state, color_plane); + icl_plane_update_sel_fetch_noarm(dsb, plane, crtc_state, plane_state, color_plane); } -static void icl_plane_update_sel_fetch_arm(struct intel_plane *plane, +static void icl_plane_update_sel_fetch_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { - struct drm_i915_private *i915 = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum pipe pipe = plane->pipe; if (!crtc_state->enable_psr2_sel_fetch) return; if (drm_rect_height(&plane_state->psr2_sel_fetch_area) > 0) - intel_de_write_fw(i915, SEL_FETCH_PLANE_CTL(pipe, plane->id), - SEL_FETCH_PLANE_CTL_ENABLE); + intel_de_write_dsb(display, dsb, SEL_FETCH_PLANE_CTL(pipe, plane->id), + SEL_FETCH_PLANE_CTL_ENABLE); else - icl_plane_disable_sel_fetch_arm(plane, crtc_state); + icl_plane_disable_sel_fetch_arm(dsb, plane, crtc_state); } static void -icl_plane_update_arm(struct intel_plane *plane, +icl_plane_update_arm(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { - struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; int color_plane = icl_plane_color_plane(plane_state); @@ -1516,25 +1540,27 @@ icl_plane_update_arm(struct intel_plane *plane, if (plane_state->scaler_id >= 0) skl_program_plane_scaler(plane, crtc_state, plane_state); - icl_plane_update_sel_fetch_arm(plane, crtc_state, plane_state); + icl_plane_update_sel_fetch_arm(dsb, plane, crtc_state, plane_state); /* * The control register self-arms if the plane was previously * disabled. Try to make the plane enable atomic by writing * the control register just before the surface register. */ - intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl); - intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), - skl_plane_surf(plane_state, color_plane)); + intel_de_write_dsb(display, dsb, PLANE_CTL(pipe, plane_id), + plane_ctl); + intel_de_write_dsb(display, dsb, PLANE_SURF(pipe, plane_id), + skl_plane_surf(plane_state, color_plane)); } static void -skl_plane_async_flip(struct intel_plane *plane, +skl_plane_async_flip(struct intel_dsb *dsb, + struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, bool async_flip) { - struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + struct intel_display *display = to_intel_display(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; u32 plane_ctl = plane_state->ctl; @@ -1544,9 +1570,10 @@ skl_plane_async_flip(struct intel_plane *plane, if (async_flip) plane_ctl |= PLANE_CTL_ASYNC_FLIP; - intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl); - intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), - skl_plane_surf(plane_state, 0)); + intel_de_write_dsb(display, dsb, PLANE_CTL(pipe, plane_id), + plane_ctl); + intel_de_write_dsb(display, dsb, PLANE_SURF(pipe, plane_id), + skl_plane_surf(plane_state, 0)); } static bool intel_format_is_p01x(u32 format) diff --git a/drivers/gpu/drm/imagination/pvr_fw_meta.c b/drivers/gpu/drm/imagination/pvr_fw_meta.c index c39beb70c317..6d13864851fc 100644 --- a/drivers/gpu/drm/imagination/pvr_fw_meta.c +++ b/drivers/gpu/drm/imagination/pvr_fw_meta.c @@ -527,8 +527,10 @@ pvr_meta_vm_map(struct pvr_device *pvr_dev, struct pvr_fw_object *fw_obj) static void pvr_meta_vm_unmap(struct pvr_device *pvr_dev, struct pvr_fw_object *fw_obj) { - pvr_vm_unmap(pvr_dev->kernel_vm_ctx, fw_obj->fw_mm_node.start, - fw_obj->fw_mm_node.size); + struct pvr_gem_object *pvr_obj = fw_obj->gem; + + pvr_vm_unmap_obj(pvr_dev->kernel_vm_ctx, pvr_obj, + fw_obj->fw_mm_node.start, fw_obj->fw_mm_node.size); } static bool diff --git a/drivers/gpu/drm/imagination/pvr_fw_trace.c b/drivers/gpu/drm/imagination/pvr_fw_trace.c index 73707daa4e52..5dbb636d7d4f 100644 --- a/drivers/gpu/drm/imagination/pvr_fw_trace.c +++ b/drivers/gpu/drm/imagination/pvr_fw_trace.c @@ -333,8 +333,8 @@ static int fw_trace_seq_show(struct seq_file *s, void *v) if (sf_id == ROGUE_FW_SF_LAST) return -EINVAL; - timestamp = read_fw_trace(trace_seq_data, 1) | - ((u64)read_fw_trace(trace_seq_data, 2) << 32); + timestamp = ((u64)read_fw_trace(trace_seq_data, 1) << 32) | + read_fw_trace(trace_seq_data, 2); timestamp = (timestamp & ~ROGUE_FWT_TIMESTAMP_TIME_CLRMSK) >> ROGUE_FWT_TIMESTAMP_TIME_SHIFT; diff --git a/drivers/gpu/drm/imagination/pvr_queue.c b/drivers/gpu/drm/imagination/pvr_queue.c index 20cb46012082..87780cc7c0c3 100644 --- a/drivers/gpu/drm/imagination/pvr_queue.c +++ b/drivers/gpu/drm/imagination/pvr_queue.c @@ -109,12 +109,20 @@ pvr_queue_fence_get_driver_name(struct dma_fence *f) return PVR_DRIVER_NAME; } +static void pvr_queue_fence_release_work(struct work_struct *w) +{ + struct pvr_queue_fence *fence = container_of(w, struct pvr_queue_fence, release_work); + + pvr_context_put(fence->queue->ctx); + dma_fence_free(&fence->base); +} + static void pvr_queue_fence_release(struct dma_fence *f) { struct pvr_queue_fence *fence = container_of(f, struct pvr_queue_fence, base); + struct pvr_device *pvr_dev = fence->queue->ctx->pvr_dev; - pvr_context_put(fence->queue->ctx); - dma_fence_free(f); + queue_work(pvr_dev->sched_wq, &fence->release_work); } static const char * @@ -268,6 +276,7 @@ pvr_queue_fence_init(struct dma_fence *f, pvr_context_get(queue->ctx); fence->queue = queue; + INIT_WORK(&fence->release_work, pvr_queue_fence_release_work); dma_fence_init(&fence->base, fence_ops, &fence_ctx->lock, fence_ctx->id, atomic_inc_return(&fence_ctx->seqno)); @@ -304,8 +313,9 @@ pvr_queue_cccb_fence_init(struct dma_fence *fence, struct pvr_queue *queue) static void pvr_queue_job_fence_init(struct dma_fence *fence, struct pvr_queue *queue) { - pvr_queue_fence_init(fence, queue, &pvr_queue_job_fence_ops, - &queue->job_fence_ctx); + if (!fence->ops) + pvr_queue_fence_init(fence, queue, &pvr_queue_job_fence_ops, + &queue->job_fence_ctx); } /** diff --git a/drivers/gpu/drm/imagination/pvr_queue.h b/drivers/gpu/drm/imagination/pvr_queue.h index e06ced69302f..93fe9ac9f58c 100644 --- a/drivers/gpu/drm/imagination/pvr_queue.h +++ b/drivers/gpu/drm/imagination/pvr_queue.h @@ -5,6 +5,7 @@ #define PVR_QUEUE_H #include <drm/gpu_scheduler.h> +#include <linux/workqueue.h> #include "pvr_cccb.h" #include "pvr_device.h" @@ -63,6 +64,9 @@ struct pvr_queue_fence { /** @queue: Queue that created this fence. */ struct pvr_queue *queue; + + /** @release_work: Fence release work structure. */ + struct work_struct release_work; }; /** diff --git a/drivers/gpu/drm/imagination/pvr_vm.c b/drivers/gpu/drm/imagination/pvr_vm.c index 363f885a7098..2896fa7501b1 100644 --- a/drivers/gpu/drm/imagination/pvr_vm.c +++ b/drivers/gpu/drm/imagination/pvr_vm.c @@ -293,8 +293,9 @@ pvr_vm_bind_op_map_init(struct pvr_vm_bind_op *bind_op, static int pvr_vm_bind_op_unmap_init(struct pvr_vm_bind_op *bind_op, - struct pvr_vm_context *vm_ctx, u64 device_addr, - u64 size) + struct pvr_vm_context *vm_ctx, + struct pvr_gem_object *pvr_obj, + u64 device_addr, u64 size) { int err; @@ -318,6 +319,7 @@ pvr_vm_bind_op_unmap_init(struct pvr_vm_bind_op *bind_op, goto err_bind_op_fini; } + bind_op->pvr_obj = pvr_obj; bind_op->vm_ctx = vm_ctx; bind_op->device_addr = device_addr; bind_op->size = size; @@ -597,20 +599,6 @@ pvr_vm_create_context(struct pvr_device *pvr_dev, bool is_userspace_context) return ERR_PTR(err); } -/** - * pvr_vm_unmap_all() - Unmap all mappings associated with a VM context. - * @vm_ctx: Target VM context. - * - * This function ensures that no mappings are left dangling by unmapping them - * all in order of ascending device-virtual address. - */ -void -pvr_vm_unmap_all(struct pvr_vm_context *vm_ctx) -{ - WARN_ON(pvr_vm_unmap(vm_ctx, vm_ctx->gpuvm_mgr.mm_start, - vm_ctx->gpuvm_mgr.mm_range)); -} - /** * pvr_vm_context_release() - Teardown a VM context. * @ref_count: Pointer to reference counter of the VM context. @@ -703,11 +691,7 @@ pvr_vm_lock_extra(struct drm_gpuvm_exec *vm_exec) struct pvr_vm_bind_op *bind_op = vm_exec->extra.priv; struct pvr_gem_object *pvr_obj = bind_op->pvr_obj; - /* Unmap operations don't have an object to lock. */ - if (!pvr_obj) - return 0; - - /* Acquire lock on the GEM being mapped. */ + /* Acquire lock on the GEM object being mapped/unmapped. */ return drm_exec_lock_obj(&vm_exec->exec, gem_from_pvr_gem(pvr_obj)); } @@ -772,8 +756,10 @@ pvr_vm_map(struct pvr_vm_context *vm_ctx, struct pvr_gem_object *pvr_obj, } /** - * pvr_vm_unmap() - Unmap an already mapped section of device-virtual memory. + * pvr_vm_unmap_obj_locked() - Unmap an already mapped section of device-virtual + * memory. * @vm_ctx: Target VM context. + * @pvr_obj: Target PowerVR memory object. * @device_addr: Virtual device address at the start of the target mapping. * @size: Size of the target mapping. * @@ -784,9 +770,13 @@ pvr_vm_map(struct pvr_vm_context *vm_ctx, struct pvr_gem_object *pvr_obj, * * Any error encountered while performing internal operations required to * destroy the mapping (returned from pvr_vm_gpuva_unmap or * pvr_vm_gpuva_remap). + * + * The vm_ctx->lock must be held when calling this function. */ -int -pvr_vm_unmap(struct pvr_vm_context *vm_ctx, u64 device_addr, u64 size) +static int +pvr_vm_unmap_obj_locked(struct pvr_vm_context *vm_ctx, + struct pvr_gem_object *pvr_obj, + u64 device_addr, u64 size) { struct pvr_vm_bind_op bind_op = {0}; struct drm_gpuvm_exec vm_exec = { @@ -799,11 +789,13 @@ pvr_vm_unmap(struct pvr_vm_context *vm_ctx, u64 device_addr, u64 size) }, }; - int err = pvr_vm_bind_op_unmap_init(&bind_op, vm_ctx, device_addr, - size); + int err = pvr_vm_bind_op_unmap_init(&bind_op, vm_ctx, pvr_obj, + device_addr, size); if (err) return err; + pvr_gem_object_get(pvr_obj); + err = drm_gpuvm_exec_lock(&vm_exec); if (err) goto err_cleanup; @@ -818,6 +810,96 @@ pvr_vm_unmap(struct pvr_vm_context *vm_ctx, u64 device_addr, u64 size) return err; } +/** + * pvr_vm_unmap_obj() - Unmap an already mapped section of device-virtual + * memory. + * @vm_ctx: Target VM context. + * @pvr_obj: Target PowerVR memory object. + * @device_addr: Virtual device address at the start of the target mapping. + * @size: Size of the target mapping. + * + * Return: + * * 0 on success, + * * Any error encountered by pvr_vm_unmap_obj_locked. + */ +int +pvr_vm_unmap_obj(struct pvr_vm_context *vm_ctx, struct pvr_gem_object *pvr_obj, + u64 device_addr, u64 size) +{ + int err; + + mutex_lock(&vm_ctx->lock); + err = pvr_vm_unmap_obj_locked(vm_ctx, pvr_obj, device_addr, size); + mutex_unlock(&vm_ctx->lock); + + return err; +} + +/** + * pvr_vm_unmap() - Unmap an already mapped section of device-virtual memory. + * @vm_ctx: Target VM context. + * @device_addr: Virtual device address at the start of the target mapping. + * @size: Size of the target mapping. + * + * Return: + * * 0 on success, + * * Any error encountered by drm_gpuva_find, + * * Any error encountered by pvr_vm_unmap_obj_locked. + */ +int +pvr_vm_unmap(struct pvr_vm_context *vm_ctx, u64 device_addr, u64 size) +{ + struct pvr_gem_object *pvr_obj; + struct drm_gpuva *va; + int err; + + mutex_lock(&vm_ctx->lock); + + va = drm_gpuva_find(&vm_ctx->gpuvm_mgr, device_addr, size); + if (va) { + pvr_obj = gem_to_pvr_gem(va->gem.obj); + err = pvr_vm_unmap_obj_locked(vm_ctx, pvr_obj, + va->va.addr, va->va.range); + } else { + err = -ENOENT; + } + + mutex_unlock(&vm_ctx->lock); + + return err; +} + +/** + * pvr_vm_unmap_all() - Unmap all mappings associated with a VM context. + * @vm_ctx: Target VM context. + * + * This function ensures that no mappings are left dangling by unmapping them + * all in order of ascending device-virtual address. + */ +void +pvr_vm_unmap_all(struct pvr_vm_context *vm_ctx) +{ + mutex_lock(&vm_ctx->lock); + + for (;;) { + struct pvr_gem_object *pvr_obj; + struct drm_gpuva *va; + + va = drm_gpuva_find_first(&vm_ctx->gpuvm_mgr, + vm_ctx->gpuvm_mgr.mm_start, + vm_ctx->gpuvm_mgr.mm_range); + if (!va) + break; + + pvr_obj = gem_to_pvr_gem(va->gem.obj); + + WARN_ON(pvr_vm_unmap_obj_locked(vm_ctx, pvr_obj, + va->va.addr, va->va.range)); + } + + mutex_unlock(&vm_ctx->lock); +} + /* Static data areas are determined by firmware. */ static const struct drm_pvr_static_data_area static_data_areas[] = { { diff --git a/drivers/gpu/drm/imagination/pvr_vm.h b/drivers/gpu/drm/imagination/pvr_vm.h index 79406243617c..b0528dffa7f1 100644 --- a/drivers/gpu/drm/imagination/pvr_vm.h +++ b/drivers/gpu/drm/imagination/pvr_vm.h @@ -38,6 +38,9 @@ struct pvr_vm_context *pvr_vm_create_context(struct pvr_device *pvr_dev, int pvr_vm_map(struct pvr_vm_context *vm_ctx, struct pvr_gem_object *pvr_obj, u64 pvr_obj_offset, u64 device_addr, u64 size); +int pvr_vm_unmap_obj(struct pvr_vm_context *vm_ctx, + struct pvr_gem_object *pvr_obj, + u64 device_addr, u64 size); int pvr_vm_unmap(struct pvr_vm_context *vm_ctx, u64 device_addr, u64 size); void pvr_vm_unmap_all(struct pvr_vm_context *vm_ctx); diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig index ceef470c9fbf..1050a4617fc1 100644 --- a/drivers/gpu/drm/nouveau/Kconfig +++ b/drivers/gpu/drm/nouveau/Kconfig @@ -4,6 +4,8 @@ config DRM_NOUVEAU depends on DRM && PCI && MMU select IOMMU_API select FW_LOADER + select FW_CACHE if PM_SLEEP + select DRM_CLIENT_SELECTION select DRM_DISPLAY_DP_HELPER select DRM_DISPLAY_HDMI_HELPER select DRM_DISPLAY_HELPER diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 34985771b2a2..6e5adab03471 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -31,6 +31,7 @@ #include <linux/dynamic_debug.h> #include <drm/drm_aperture.h> +#include <drm/drm_client_setup.h> #include <drm/drm_drv.h> #include <drm/drm_fbdev_ttm.h> #include <drm/drm_gem_ttm_helper.h> @@ -836,6 +837,7 @@ static int nouveau_drm_probe(struct pci_dev *pdev, { struct nvkm_device *device; struct nouveau_drm *drm; + const struct drm_format_info *format; int ret; if (vga_switcheroo_client_probe_defer(pdev)) @@ -873,9 +875,11 @@ static int nouveau_drm_probe(struct pci_dev *pdev, goto fail_pci; if (drm->client.device.info.ram_size <= 32 * 1024 * 1024) - drm_fbdev_ttm_setup(drm->dev, 8); + format = drm_format_info(DRM_FORMAT_C8); else - drm_fbdev_ttm_setup(drm->dev, 32); + format = NULL; + + drm_client_setup(drm->dev, format); quirk_broken_nv_runpm(pdev); return 0; @@ -1318,6 +1322,8 @@ driver_stub = { .dumb_create = nouveau_display_dumb_create, .dumb_map_offset = drm_gem_ttm_dumb_map_offset, + DRM_FBDEV_TTM_DRIVER_OPS, + .name = DRIVER_NAME, .desc = DRIVER_DESC, #ifdef GIT_REVISION diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 05c13102a8cb..d22889fbfa9c 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -359,7 +359,8 @@ int r300_mc_wait_for_idle(struct radeon_device *rdev) return -1; } -static void r300_gpu_init(struct radeon_device *rdev) +/* rs400_gpu_init also calls this! */ +void r300_gpu_init(struct radeon_device *rdev) { uint32_t gb_tile_config, tmp; diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 1e00f6b99f94..8f5e07834fcc 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -165,6 +165,7 @@ void r200_set_safe_registers(struct radeon_device *rdev); */ extern int r300_init(struct radeon_device *rdev); extern void r300_fini(struct radeon_device *rdev); +extern void r300_gpu_init(struct radeon_device *rdev); extern int r300_suspend(struct radeon_device *rdev); extern int r300_resume(struct radeon_device *rdev); extern int r300_asic_reset(struct radeon_device *rdev, bool hard); diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c index d6c18fd740ec..13cd0a688a65 100644 --- a/drivers/gpu/drm/radeon/rs400.c +++ b/drivers/gpu/drm/radeon/rs400.c @@ -256,8 +256,22 @@ int rs400_mc_wait_for_idle(struct radeon_device *rdev) static void rs400_gpu_init(struct radeon_device *rdev) { - /* FIXME: is this correct ? */ - r420_pipes_init(rdev); + /* Earlier code was calling r420_pipes_init and then + * rs400_mc_wait_for_idle(rdev). The problem is that + * at least on my Mobility Radeon Xpress 200M RC410 card + * that ends up in this code path ends up num_gb_pipes == 3 + * while the card seems to have only one pipe. With the + * r420 pipe initialization method. + * + * Problems shown up as HyperZ glitches, see: + * https://bugs.freedesktop.org/show_bug.cgi?id=110897 + * + * Delegating initialization to r300 code seems to work + * and results in proper pipe numbers. The rs400 cards + * are said to be not r400, but r300 kind of cards. + */ + r300_gpu_init(rdev); + if (rs400_mc_wait_for_idle(rdev)) { pr_warn("rs400: Failed to wait MC idle while programming pipes. Bad things might happen. %08x\n", RREG32(RADEON_MC_STATUS)); diff --git a/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h b/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h index c75302ca3427..f56e77e7f6d0 100644 --- a/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h +++ b/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h @@ -21,7 +21,7 @@ * */ -#if !defined(_GPU_SCHED_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#if !defined(_GPU_SCHED_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ) #define _GPU_SCHED_TRACE_H_ #include <linux/stringify.h> @@ -106,7 +106,7 @@ TRACE_EVENT(drm_sched_job_wait_dep, __entry->seqno) ); -#endif +#endif /* _GPU_SCHED_TRACE_H_ */ /* This part must be outside protection */ #undef TRACE_INCLUDE_PATH diff --git a/drivers/gpu/drm/xe/display/xe_plane_initial.c b/drivers/gpu/drm/xe/display/xe_plane_initial.c index a50ab9eae40a..f99d38cc5d8e 100644 --- a/drivers/gpu/drm/xe/display/xe_plane_initial.c +++ b/drivers/gpu/drm/xe/display/xe_plane_initial.c @@ -194,8 +194,6 @@ intel_find_initial_plane_obj(struct intel_crtc *crtc, to_intel_plane(crtc->base.primary); struct intel_plane_state *plane_state = to_intel_plane_state(plane->base.state); - struct intel_crtc_state *crtc_state = - to_intel_crtc_state(crtc->base.state); struct drm_framebuffer *fb; struct i915_vma *vma; @@ -241,14 +239,6 @@ intel_find_initial_plane_obj(struct intel_crtc *crtc, atomic_or(plane->frontbuffer_bit, &to_intel_frontbuffer(fb)->bits); plane_config->vma = vma; - - /* - * Flip to the newly created mapping ASAP, so we can re-use the - * first part of GGTT for WOPCM, prevent flickering, and prevent - * the lookup of sysmem scratch pages. - */ - plane->check_plane(crtc_state, plane_state); - plane->async_flip(plane, crtc_state, plane_state, true); return; nofb: diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c index b940688c3613..98fe8573e054 100644 --- a/drivers/gpu/drm/xe/xe_gt.c +++ b/drivers/gpu/drm/xe/xe_gt.c @@ -379,9 +379,7 @@ int xe_gt_init_early(struct xe_gt *gt) if (err) return err; - xe_wa_process_gt(gt); xe_wa_process_oob(gt); - xe_tuning_process_gt(gt); xe_force_wake_init_gt(gt, gt_to_fw(gt)); spin_lock_init(>->global_invl_lock); @@ -469,6 +467,8 @@ static int all_fw_domain_init(struct xe_gt *gt) goto err_hw_fence_irq; xe_gt_mcr_set_implicit_defaults(gt); + xe_wa_process_gt(gt); + xe_tuning_process_gt(gt); xe_reg_sr_apply_mmio(>->reg_sr, gt); err = xe_gt_clock_init(gt); diff --git a/drivers/gpu/drm/xe/xe_hmm.c b/drivers/gpu/drm/xe/xe_hmm.c index 2c32dc46f7d4..d7a9408b3a97 100644 --- a/drivers/gpu/drm/xe/xe_hmm.c +++ b/drivers/gpu/drm/xe/xe_hmm.c @@ -19,11 +19,10 @@ static u64 xe_npages_in_range(unsigned long start, unsigned long end) return (end - start) >> PAGE_SHIFT; } -/* +/** * xe_mark_range_accessed() - mark a range is accessed, so core mm * have such information for memory eviction or write back to * hard disk - * * @range: the range to mark * @write: if write to this range, we mark pages in this range * as dirty @@ -43,15 +42,51 @@ static void xe_mark_range_accessed(struct hmm_range *range, bool write) } } -/* +static int xe_alloc_sg(struct xe_device *xe, struct sg_table *st, + struct hmm_range *range, struct rw_semaphore *notifier_sem) +{ + unsigned long i, npages, hmm_pfn; + unsigned long num_chunks = 0; + int ret; + + /* HMM docs says this is needed. */ + ret = down_read_interruptible(notifier_sem); + if (ret) + return ret; + + if (mmu_interval_read_retry(range->notifier, range->notifier_seq)) { + up_read(notifier_sem); + return -EAGAIN; + } + + npages = xe_npages_in_range(range->start, range->end); + for (i = 0; i < npages;) { + unsigned long len; + + hmm_pfn = range->hmm_pfns[i]; + xe_assert(xe, hmm_pfn & HMM_PFN_VALID); + + len = 1UL << hmm_pfn_to_map_order(hmm_pfn); + + /* If order > 0 the page may extend beyond range->start */ + len -= (hmm_pfn & ~HMM_PFN_FLAGS) & (len - 1); + i += len; + num_chunks++; + } + up_read(notifier_sem); + + return sg_alloc_table(st, num_chunks, GFP_KERNEL); +} + +/** * xe_build_sg() - build a scatter gather table for all the physical pages/pfn * in a hmm_range. dma-map pages if necessary. dma-address is save in sg table * and will be used to program GPU page table later. - * * @xe: the xe device who will access the dma-address in sg table * @range: the hmm range that we build the sg table from. range->hmm_pfns[] * has the pfn numbers of pages that back up this hmm address range. * @st: pointer to the sg table. + * @notifier_sem: The xe notifier lock. * @write: whether we write to this range. This decides dma map direction * for system pages. If write we map it bi-diretional; otherwise * DMA_TO_DEVICE @@ -78,43 +113,84 @@ static void xe_mark_range_accessed(struct hmm_range *range, bool write) * Returns 0 if successful; -ENOMEM if fails to allocate memory */ static int xe_build_sg(struct xe_device *xe, struct hmm_range *range, - struct sg_table *st, bool write) + struct sg_table *st, + struct rw_semaphore *notifier_sem, + bool write) { + unsigned long npages = xe_npages_in_range(range->start, range->end); struct device *dev = xe->drm.dev; - struct page **pages; - u64 i, npages; - int ret; + struct scatterlist *sgl; + struct page *page; + unsigned long i, j; - npages = xe_npages_in_range(range->start, range->end); - pages = kvmalloc_array(npages, sizeof(*pages), GFP_KERNEL); - if (!pages) - return -ENOMEM; + lockdep_assert_held(notifier_sem); - for (i = 0; i < npages; i++) { - pages[i] = hmm_pfn_to_page(range->hmm_pfns[i]); - xe_assert(xe, !is_device_private_page(pages[i])); + i = 0; + for_each_sg(st->sgl, sgl, st->nents, j) { + unsigned long hmm_pfn, size; + + hmm_pfn = range->hmm_pfns[i]; + page = hmm_pfn_to_page(hmm_pfn); + xe_assert(xe, !is_device_private_page(page)); + + size = 1UL << hmm_pfn_to_map_order(hmm_pfn); + size -= page_to_pfn(page) & (size - 1); + i += size; + + if (unlikely(j == st->nents - 1)) { + if (i > npages) + size -= (i - npages); + sg_mark_end(sgl); + } + sg_set_page(sgl, page, size << PAGE_SHIFT, 0); } + xe_assert(xe, i == npages); - ret = sg_alloc_table_from_pages_segment(st, pages, npages, 0, npages << PAGE_SHIFT, - xe_sg_segment_size(dev), GFP_KERNEL); - if (ret) - goto free_pages; + return dma_map_sgtable(dev, st, write ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_NO_KERNEL_MAPPING); +} + +static void xe_hmm_userptr_set_mapped(struct xe_userptr_vma *uvma) +{ + struct xe_userptr *userptr = &uvma->userptr; + struct xe_vm *vm = xe_vma_vm(&uvma->vma); + + lockdep_assert_held_write(&vm->lock); + lockdep_assert_held(&vm->userptr.notifier_lock); + + mutex_lock(&userptr->unmap_mutex); + xe_assert(vm->xe, !userptr->mapped); + userptr->mapped = true; + mutex_unlock(&userptr->unmap_mutex); +} + +void xe_hmm_userptr_unmap(struct xe_userptr_vma *uvma) +{ + struct xe_userptr *userptr = &uvma->userptr; + struct xe_vma *vma = &uvma->vma; + bool write = !xe_vma_read_only(vma); + struct xe_vm *vm = xe_vma_vm(vma); + struct xe_device *xe = vm->xe; - ret = dma_map_sgtable(dev, st, write ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE, - DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_NO_KERNEL_MAPPING); - if (ret) { - sg_free_table(st); - st = NULL; + if (!lockdep_is_held_type(&vm->userptr.notifier_lock, 0) && + !lockdep_is_held_type(&vm->lock, 0) && + !(vma->gpuva.flags & XE_VMA_DESTROYED)) { + /* Don't unmap in exec critical section. */ + xe_vm_assert_held(vm); + /* Don't unmap while mapping the sg. */ + lockdep_assert_held(&vm->lock); } -free_pages: - kvfree(pages); - return ret; + mutex_lock(&userptr->unmap_mutex); + if (userptr->sg && userptr->mapped) + dma_unmap_sgtable(xe->drm.dev, userptr->sg, + write ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE, 0); + userptr->mapped = false; + mutex_unlock(&userptr->unmap_mutex); } -/* +/** * xe_hmm_userptr_free_sg() - Free the scatter gather table of userptr - * * @uvma: the userptr vma which hold the scatter gather table * * With function xe_userptr_populate_range, we allocate storage of @@ -124,16 +200,9 @@ static int xe_build_sg(struct xe_device *xe, struct hmm_range *range, void xe_hmm_userptr_free_sg(struct xe_userptr_vma *uvma) { struct xe_userptr *userptr = &uvma->userptr; - struct xe_vma *vma = &uvma->vma; - bool write = !xe_vma_read_only(vma); - struct xe_vm *vm = xe_vma_vm(vma); - struct xe_device *xe = vm->xe; - struct device *dev = xe->drm.dev; - - xe_assert(xe, userptr->sg); - dma_unmap_sgtable(dev, userptr->sg, - write ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE, 0); + xe_assert(xe_vma_vm(&uvma->vma)->xe, userptr->sg); + xe_hmm_userptr_unmap(uvma); sg_free_table(userptr->sg); userptr->sg = NULL; } @@ -166,13 +235,20 @@ int xe_hmm_userptr_populate_range(struct xe_userptr_vma *uvma, { unsigned long timeout = jiffies + msecs_to_jiffies(HMM_RANGE_DEFAULT_TIMEOUT); - unsigned long *pfns, flags = HMM_PFN_REQ_FAULT; + unsigned long *pfns; struct xe_userptr *userptr; struct xe_vma *vma = &uvma->vma; u64 userptr_start = xe_vma_userptr(vma); u64 userptr_end = userptr_start + xe_vma_size(vma); struct xe_vm *vm = xe_vma_vm(vma); - struct hmm_range hmm_range; + struct hmm_range hmm_range = { + .pfn_flags_mask = 0, /* ignore pfns */ + .default_flags = HMM_PFN_REQ_FAULT, + .start = userptr_start, + .end = userptr_end, + .notifier = &uvma->userptr.notifier, + .dev_private_owner = vm->xe, + }; bool write = !xe_vma_read_only(vma); unsigned long notifier_seq; u64 npages; @@ -199,19 +275,14 @@ int xe_hmm_userptr_populate_range(struct xe_userptr_vma *uvma, return -ENOMEM; if (write) - flags |= HMM_PFN_REQ_WRITE; + hmm_range.default_flags |= HMM_PFN_REQ_WRITE; if (!mmget_not_zero(userptr->notifier.mm)) { ret = -EFAULT; goto free_pfns; } - hmm_range.default_flags = flags; hmm_range.hmm_pfns = pfns; - hmm_range.notifier = &userptr->notifier; - hmm_range.start = userptr_start; - hmm_range.end = userptr_end; - hmm_range.dev_private_owner = vm->xe; while (true) { hmm_range.notifier_seq = mmu_interval_read_begin(&userptr->notifier); @@ -238,16 +309,37 @@ int xe_hmm_userptr_populate_range(struct xe_userptr_vma *uvma, if (ret) goto free_pfns; - ret = xe_build_sg(vm->xe, &hmm_range, &userptr->sgt, write); + ret = xe_alloc_sg(vm->xe, &userptr->sgt, &hmm_range, &vm->userptr.notifier_lock); if (ret) goto free_pfns; + ret = down_read_interruptible(&vm->userptr.notifier_lock); + if (ret) + goto free_st; + + if (mmu_interval_read_retry(hmm_range.notifier, hmm_range.notifier_seq)) { + ret = -EAGAIN; + goto out_unlock; + } + + ret = xe_build_sg(vm->xe, &hmm_range, &userptr->sgt, + &vm->userptr.notifier_lock, write); + if (ret) + goto out_unlock; + xe_mark_range_accessed(&hmm_range, write); userptr->sg = &userptr->sgt; + xe_hmm_userptr_set_mapped(uvma); userptr->notifier_seq = hmm_range.notifier_seq; + up_read(&vm->userptr.notifier_lock); + kvfree(pfns); + return 0; +out_unlock: + up_read(&vm->userptr.notifier_lock); +free_st: + sg_free_table(&userptr->sgt); free_pfns: kvfree(pfns); return ret; } - diff --git a/drivers/gpu/drm/xe/xe_hmm.h b/drivers/gpu/drm/xe/xe_hmm.h index 909dc2bdcd97..0ea98d8e7bbc 100644 --- a/drivers/gpu/drm/xe/xe_hmm.h +++ b/drivers/gpu/drm/xe/xe_hmm.h @@ -3,9 +3,16 @@ * Copyright © 2024 Intel Corporation */ +#ifndef _XE_HMM_H_ +#define _XE_HMM_H_ + #include <linux/types.h> struct xe_userptr_vma; int xe_hmm_userptr_populate_range(struct xe_userptr_vma *uvma, bool is_mm_mmap_locked); + void xe_hmm_userptr_free_sg(struct xe_userptr_vma *uvma); + +void xe_hmm_userptr_unmap(struct xe_userptr_vma *uvma); +#endif diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c index 797576690356..230cf47fb9c5 100644 --- a/drivers/gpu/drm/xe/xe_pt.c +++ b/drivers/gpu/drm/xe/xe_pt.c @@ -28,6 +28,8 @@ struct xe_pt_dir { struct xe_pt pt; /** @children: Array of page-table child nodes */ struct xe_ptw *children[XE_PDES]; + /** @staging: Array of page-table staging nodes */ + struct xe_ptw *staging[XE_PDES]; }; #if IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM) @@ -48,9 +50,10 @@ static struct xe_pt_dir *as_xe_pt_dir(struct xe_pt *pt) return container_of(pt, struct xe_pt_dir, pt); } -static struct xe_pt *xe_pt_entry(struct xe_pt_dir *pt_dir, unsigned int index) +static struct xe_pt * +xe_pt_entry_staging(struct xe_pt_dir *pt_dir, unsigned int index) { - return container_of(pt_dir->children[index], struct xe_pt, base); + return container_of(pt_dir->staging[index], struct xe_pt, base); } static u64 __xe_pt_empty_pte(struct xe_tile *tile, struct xe_vm *vm, @@ -125,6 +128,7 @@ struct xe_pt *xe_pt_create(struct xe_vm *vm, struct xe_tile *tile, } pt->bo = bo; pt->base.children = level ? as_xe_pt_dir(pt)->children : NULL; + pt->base.staging = level ? as_xe_pt_dir(pt)->staging : NULL; if (vm->xef) xe_drm_client_add_bo(vm->xef->client, pt->bo); @@ -205,8 +209,8 @@ void xe_pt_destroy(struct xe_pt *pt, u32 flags, struct llist_head *deferred) struct xe_pt_dir *pt_dir = as_xe_pt_dir(pt); for (i = 0; i < XE_PDES; i++) { - if (xe_pt_entry(pt_dir, i)) - xe_pt_destroy(xe_pt_entry(pt_dir, i), flags, + if (xe_pt_entry_staging(pt_dir, i)) + xe_pt_destroy(xe_pt_entry_staging(pt_dir, i), flags, deferred); } } @@ -375,8 +379,10 @@ xe_pt_insert_entry(struct xe_pt_stage_bind_walk *xe_walk, struct xe_pt *parent, /* Continue building a non-connected subtree. */ struct iosys_map *map = &parent->bo->vmap; - if (unlikely(xe_child)) + if (unlikely(xe_child)) { parent->base.children[offset] = &xe_child->base; + parent->base.staging[offset] = &xe_child->base; + } xe_pt_write(xe_walk->vm->xe, map, offset, pte); parent->num_live++; @@ -613,6 +619,7 @@ xe_pt_stage_bind(struct xe_tile *tile, struct xe_vma *vma, .ops = &xe_pt_stage_bind_ops, .shifts = xe_normal_pt_shifts, .max_level = XE_PT_HIGHEST_LEVEL, + .staging = true, }, .vm = xe_vma_vm(vma), .tile = tile, @@ -872,7 +879,7 @@ static void xe_pt_cancel_bind(struct xe_vma *vma, } } -static void xe_pt_commit_locks_assert(struct xe_vma *vma) +static void xe_pt_commit_prepare_locks_assert(struct xe_vma *vma) { struct xe_vm *vm = xe_vma_vm(vma); @@ -884,6 +891,16 @@ static void xe_pt_commit_locks_assert(struct xe_vma *vma) xe_vm_assert_held(vm); } +static void xe_pt_commit_locks_assert(struct xe_vma *vma) +{ + struct xe_vm *vm = xe_vma_vm(vma); + + xe_pt_commit_prepare_locks_assert(vma); + + if (xe_vma_is_userptr(vma)) + lockdep_assert_held_read(&vm->userptr.notifier_lock); +} + static void xe_pt_commit(struct xe_vma *vma, struct xe_vm_pgtable_update *entries, u32 num_entries, struct llist_head *deferred) @@ -894,13 +911,17 @@ static void xe_pt_commit(struct xe_vma *vma, for (i = 0; i < num_entries; i++) { struct xe_pt *pt = entries[i].pt; + struct xe_pt_dir *pt_dir; if (!pt->level) continue; + pt_dir = as_xe_pt_dir(pt); for (j = 0; j < entries[i].qwords; j++) { struct xe_pt *oldpte = entries[i].pt_entries[j].pt; + int j_ = j + entries[i].ofs; + pt_dir->children[j_] = pt_dir->staging[j_]; xe_pt_destroy(oldpte, xe_vma_vm(vma)->flags, deferred); } } @@ -912,7 +933,7 @@ static void xe_pt_abort_bind(struct xe_vma *vma, { int i, j; - xe_pt_commit_locks_assert(vma); + xe_pt_commit_prepare_locks_assert(vma); for (i = num_entries - 1; i >= 0; --i) { struct xe_pt *pt = entries[i].pt; @@ -927,10 +948,10 @@ static void xe_pt_abort_bind(struct xe_vma *vma, pt_dir = as_xe_pt_dir(pt); for (j = 0; j < entries[i].qwords; j++) { u32 j_ = j + entries[i].ofs; - struct xe_pt *newpte = xe_pt_entry(pt_dir, j_); + struct xe_pt *newpte = xe_pt_entry_staging(pt_dir, j_); struct xe_pt *oldpte = entries[i].pt_entries[j].pt; - pt_dir->children[j_] = oldpte ? &oldpte->base : 0; + pt_dir->staging[j_] = oldpte ? &oldpte->base : 0; xe_pt_destroy(newpte, xe_vma_vm(vma)->flags, NULL); } } @@ -942,7 +963,7 @@ static void xe_pt_commit_prepare_bind(struct xe_vma *vma, { u32 i, j; - xe_pt_commit_locks_assert(vma); + xe_pt_commit_prepare_locks_assert(vma); for (i = 0; i < num_entries; i++) { struct xe_pt *pt = entries[i].pt; @@ -960,10 +981,10 @@ static void xe_pt_commit_prepare_bind(struct xe_vma *vma, struct xe_pt *newpte = entries[i].pt_entries[j].pt; struct xe_pt *oldpte = NULL; - if (xe_pt_entry(pt_dir, j_)) - oldpte = xe_pt_entry(pt_dir, j_); + if (xe_pt_entry_staging(pt_dir, j_)) + oldpte = xe_pt_entry_staging(pt_dir, j_); - pt_dir->children[j_] = &newpte->base; + pt_dir->staging[j_] = &newpte->base; entries[i].pt_entries[j].pt = oldpte; } } @@ -1212,42 +1233,22 @@ static int vma_check_userptr(struct xe_vm *vm, struct xe_vma *vma, return 0; uvma = to_userptr_vma(vma); - notifier_seq = uvma->userptr.notifier_seq; + if (xe_pt_userptr_inject_eagain(uvma)) + xe_vma_userptr_force_invalidate(uvma); - if (uvma->userptr.initial_bind && !xe_vm_in_fault_mode(vm)) - return 0; + notifier_seq = uvma->userptr.notifier_seq; if (!mmu_interval_read_retry(&uvma->userptr.notifier, - notifier_seq) && - !xe_pt_userptr_inject_eagain(uvma)) + notifier_seq)) return 0; - if (xe_vm_in_fault_mode(vm)) { + if (xe_vm_in_fault_mode(vm)) return -EAGAIN; - } else { - spin_lock(&vm->userptr.invalidated_lock); - list_move_tail(&uvma->userptr.invalidate_link, - &vm->userptr.invalidated); - spin_unlock(&vm->userptr.invalidated_lock); - - if (xe_vm_in_preempt_fence_mode(vm)) { - struct dma_resv_iter cursor; - struct dma_fence *fence; - long err; - - dma_resv_iter_begin(&cursor, xe_vm_resv(vm), - DMA_RESV_USAGE_BOOKKEEP); - dma_resv_for_each_fence_unlocked(&cursor, fence) - dma_fence_enable_sw_signaling(fence); - dma_resv_iter_end(&cursor); - - err = dma_resv_wait_timeout(xe_vm_resv(vm), - DMA_RESV_USAGE_BOOKKEEP, - false, MAX_SCHEDULE_TIMEOUT); - XE_WARN_ON(err <= 0); - } - } + /* + * Just continue the operation since exec or rebind worker + * will take care of rebinding. + */ return 0; } @@ -1513,6 +1514,7 @@ static unsigned int xe_pt_stage_unbind(struct xe_tile *tile, struct xe_vma *vma, .ops = &xe_pt_stage_unbind_ops, .shifts = xe_normal_pt_shifts, .max_level = XE_PT_HIGHEST_LEVEL, + .staging = true, }, .tile = tile, .modified_start = xe_vma_start(vma), @@ -1554,7 +1556,7 @@ static void xe_pt_abort_unbind(struct xe_vma *vma, { int i, j; - xe_pt_commit_locks_assert(vma); + xe_pt_commit_prepare_locks_assert(vma); for (i = num_entries - 1; i >= 0; --i) { struct xe_vm_pgtable_update *entry = &entries[i]; @@ -1567,7 +1569,7 @@ static void xe_pt_abort_unbind(struct xe_vma *vma, continue; for (j = entry->ofs; j < entry->ofs + entry->qwords; j++) - pt_dir->children[j] = + pt_dir->staging[j] = entries[i].pt_entries[j - entry->ofs].pt ? &entries[i].pt_entries[j - entry->ofs].pt->base : NULL; } @@ -1580,7 +1582,7 @@ xe_pt_commit_prepare_unbind(struct xe_vma *vma, { int i, j; - xe_pt_commit_locks_assert(vma); + xe_pt_commit_prepare_locks_assert(vma); for (i = 0; i < num_entries; ++i) { struct xe_vm_pgtable_update *entry = &entries[i]; @@ -1594,8 +1596,8 @@ xe_pt_commit_prepare_unbind(struct xe_vma *vma, pt_dir = as_xe_pt_dir(pt); for (j = entry->ofs; j < entry->ofs + entry->qwords; j++) { entry->pt_entries[j - entry->ofs].pt = - xe_pt_entry(pt_dir, j); - pt_dir->children[j] = NULL; + xe_pt_entry_staging(pt_dir, j); + pt_dir->staging[j] = NULL; } } } diff --git a/drivers/gpu/drm/xe/xe_pt_walk.c b/drivers/gpu/drm/xe/xe_pt_walk.c index b8b3d2aea492..be602a763ff3 100644 --- a/drivers/gpu/drm/xe/xe_pt_walk.c +++ b/drivers/gpu/drm/xe/xe_pt_walk.c @@ -74,7 +74,8 @@ int xe_pt_walk_range(struct xe_ptw *parent, unsigned int level, u64 addr, u64 end, struct xe_pt_walk *walk) { pgoff_t offset = xe_pt_offset(addr, level, walk); - struct xe_ptw **entries = parent->children ? parent->children : NULL; + struct xe_ptw **entries = walk->staging ? (parent->staging ?: NULL) : + (parent->children ?: NULL); const struct xe_pt_walk_ops *ops = walk->ops; enum page_walk_action action; struct xe_ptw *child; diff --git a/drivers/gpu/drm/xe/xe_pt_walk.h b/drivers/gpu/drm/xe/xe_pt_walk.h index 5ecc4d2f0f65..5c02c244f7de 100644 --- a/drivers/gpu/drm/xe/xe_pt_walk.h +++ b/drivers/gpu/drm/xe/xe_pt_walk.h @@ -11,12 +11,14 @@ /** * struct xe_ptw - base class for driver pagetable subclassing. * @children: Pointer to an array of children if any. + * @staging: Pointer to an array of staging if any. * * Drivers could subclass this, and if it's a page-directory, typically * embed an array of xe_ptw pointers. */ struct xe_ptw { struct xe_ptw **children; + struct xe_ptw **staging; }; /** @@ -41,6 +43,8 @@ struct xe_pt_walk { * as shared pagetables. */ bool shared_pt_mode; + /** @staging: Walk staging PT structure */ + bool staging; }; /** diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index 5693b337f5df..872de052d670 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -580,51 +580,26 @@ static void preempt_rebind_work_func(struct work_struct *w) trace_xe_vm_rebind_worker_exit(vm); } -static bool vma_userptr_invalidate(struct mmu_interval_notifier *mni, - const struct mmu_notifier_range *range, - unsigned long cur_seq) +static void __vma_userptr_invalidate(struct xe_vm *vm, struct xe_userptr_vma *uvma) { - struct xe_userptr *userptr = container_of(mni, typeof(*userptr), notifier); - struct xe_userptr_vma *uvma = container_of(userptr, typeof(*uvma), userptr); + struct xe_userptr *userptr = &uvma->userptr; struct xe_vma *vma = &uvma->vma; - struct xe_vm *vm = xe_vma_vm(vma); struct dma_resv_iter cursor; struct dma_fence *fence; long err; - xe_assert(vm->xe, xe_vma_is_userptr(vma)); - trace_xe_vma_userptr_invalidate(vma); - - if (!mmu_notifier_range_blockable(range)) - return false; - - vm_dbg(&xe_vma_vm(vma)->xe->drm, - "NOTIFIER: addr=0x%016llx, range=0x%016llx", - xe_vma_start(vma), xe_vma_size(vma)); - - down_write(&vm->userptr.notifier_lock); - mmu_interval_set_seq(mni, cur_seq); - - /* No need to stop gpu access if the userptr is not yet bound. */ - if (!userptr->initial_bind) { - up_write(&vm->userptr.notifier_lock); - return true; - } - /* * Tell exec and rebind worker they need to repin and rebind this * userptr. */ if (!xe_vm_in_fault_mode(vm) && - !(vma->gpuva.flags & XE_VMA_DESTROYED) && vma->tile_present) { + !(vma->gpuva.flags & XE_VMA_DESTROYED)) { spin_lock(&vm->userptr.invalidated_lock); list_move_tail(&userptr->invalidate_link, &vm->userptr.invalidated); spin_unlock(&vm->userptr.invalidated_lock); } - up_write(&vm->userptr.notifier_lock); - /* * Preempt fences turn into schedule disables, pipeline these. * Note that even in fault mode, we need to wait for binds and @@ -642,11 +617,37 @@ static bool vma_userptr_invalidate(struct mmu_interval_notifier *mni, false, MAX_SCHEDULE_TIMEOUT); XE_WARN_ON(err <= 0); - if (xe_vm_in_fault_mode(vm)) { + if (xe_vm_in_fault_mode(vm) && userptr->initial_bind) { err = xe_vm_invalidate_vma(vma); XE_WARN_ON(err); } + xe_hmm_userptr_unmap(uvma); +} + +static bool vma_userptr_invalidate(struct mmu_interval_notifier *mni, + const struct mmu_notifier_range *range, + unsigned long cur_seq) +{ + struct xe_userptr_vma *uvma = container_of(mni, typeof(*uvma), userptr.notifier); + struct xe_vma *vma = &uvma->vma; + struct xe_vm *vm = xe_vma_vm(vma); + + xe_assert(vm->xe, xe_vma_is_userptr(vma)); + trace_xe_vma_userptr_invalidate(vma); + + if (!mmu_notifier_range_blockable(range)) + return false; + + vm_dbg(&xe_vma_vm(vma)->xe->drm, + "NOTIFIER: addr=0x%016llx, range=0x%016llx", + xe_vma_start(vma), xe_vma_size(vma)); + + down_write(&vm->userptr.notifier_lock); + mmu_interval_set_seq(mni, cur_seq); + + __vma_userptr_invalidate(vm, uvma); + up_write(&vm->userptr.notifier_lock); trace_xe_vma_userptr_invalidate_complete(vma); return true; @@ -656,6 +657,34 @@ static const struct mmu_interval_notifier_ops vma_userptr_notifier_ops = { .invalidate = vma_userptr_invalidate, }; +#if IS_ENABLED(CONFIG_DRM_XE_USERPTR_INVAL_INJECT) +/** + * xe_vma_userptr_force_invalidate() - force invalidate a userptr + * @uvma: The userptr vma to invalidate + * + * Perform a forced userptr invalidation for testing purposes. + */ +void xe_vma_userptr_force_invalidate(struct xe_userptr_vma *uvma) +{ + struct xe_vm *vm = xe_vma_vm(&uvma->vma); + + /* Protect against concurrent userptr pinning */ + lockdep_assert_held(&vm->lock); + /* Protect against concurrent notifiers */ + lockdep_assert_held(&vm->userptr.notifier_lock); + /* + * Protect against concurrent instances of this function and + * the critical exec sections + */ + xe_vm_assert_held(vm); + + if (!mmu_interval_read_retry(&uvma->userptr.notifier, + uvma->userptr.notifier_seq)) + uvma->userptr.notifier_seq -= 2; + __vma_userptr_invalidate(vm, uvma); +} +#endif + int xe_vm_userptr_pin(struct xe_vm *vm) { struct xe_userptr_vma *uvma, *next; @@ -1012,6 +1041,7 @@ static struct xe_vma *xe_vma_create(struct xe_vm *vm, INIT_LIST_HEAD(&userptr->invalidate_link); INIT_LIST_HEAD(&userptr->repin_link); vma->gpuva.gem.offset = bo_offset_or_userptr; + mutex_init(&userptr->unmap_mutex); err = mmu_interval_notifier_insert(&userptr->notifier, current->mm, @@ -1053,6 +1083,7 @@ static void xe_vma_destroy_late(struct xe_vma *vma) * them anymore */ mmu_interval_notifier_remove(&userptr->notifier); + mutex_destroy(&userptr->unmap_mutex); xe_vm_put(vm); } else if (xe_vma_is_null(vma)) { xe_vm_put(vm); @@ -2284,8 +2315,17 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct drm_gpuva_ops *ops, break; } case DRM_GPUVA_OP_UNMAP: + xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask); + break; case DRM_GPUVA_OP_PREFETCH: - /* FIXME: Need to skip some prefetch ops */ + vma = gpuva_to_vma(op->base.prefetch.va); + + if (xe_vma_is_userptr(vma)) { + err = xe_vma_userptr_pin_pages(to_userptr_vma(vma)); + if (err) + return err; + } + xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask); break; default: diff --git a/drivers/gpu/drm/xe/xe_vm.h b/drivers/gpu/drm/xe/xe_vm.h index c864dba35e1d..d2406532fcc5 100644 --- a/drivers/gpu/drm/xe/xe_vm.h +++ b/drivers/gpu/drm/xe/xe_vm.h @@ -275,9 +275,17 @@ static inline void vm_dbg(const struct drm_device *dev, const char *format, ...) { /* noop */ } #endif -#endif struct xe_vm_snapshot *xe_vm_snapshot_capture(struct xe_vm *vm); void xe_vm_snapshot_capture_delayed(struct xe_vm_snapshot *snap); void xe_vm_snapshot_print(struct xe_vm_snapshot *snap, struct drm_printer *p); void xe_vm_snapshot_free(struct xe_vm_snapshot *snap); + +#if IS_ENABLED(CONFIG_DRM_XE_USERPTR_INVAL_INJECT) +void xe_vma_userptr_force_invalidate(struct xe_userptr_vma *uvma); +#else +static inline void xe_vma_userptr_force_invalidate(struct xe_userptr_vma *uvma) +{ +} +#endif +#endif diff --git a/drivers/gpu/drm/xe/xe_vm_types.h b/drivers/gpu/drm/xe/xe_vm_types.h index 7f9a303e51d8..a4b4091cfd0d 100644 --- a/drivers/gpu/drm/xe/xe_vm_types.h +++ b/drivers/gpu/drm/xe/xe_vm_types.h @@ -59,12 +59,16 @@ struct xe_userptr { struct sg_table *sg; /** @notifier_seq: notifier sequence number */ unsigned long notifier_seq; + /** @unmap_mutex: Mutex protecting dma-unmapping */ + struct mutex unmap_mutex; /** * @initial_bind: user pointer has been bound at least once. * write: vm->userptr.notifier_lock in read mode and vm->resv held. * read: vm->userptr.notifier_lock in write mode or vm->resv held. */ bool initial_bind; + /** @mapped: Whether the @sgt sg-table is dma-mapped. Protected by @unmap_mutex. */ + bool mapped; #if IS_ENABLED(CONFIG_DRM_XE_USERPTR_INVAL_INJECT) u32 divisor; #endif @@ -227,8 +231,8 @@ struct xe_vm { * up for revalidation. Protected from access with the * @invalidated_lock. Removing items from the list * additionally requires @lock in write mode, and adding - * items to the list requires the @userptr.notifer_lock in - * write mode. + * items to the list requires either the @userptr.notifer_lock in + * write mode, OR @lock in write mode. */ struct list_head invalidated; } userptr; diff --git a/drivers/hid/hid-appleir.c b/drivers/hid/hid-appleir.c index 8deded185725..c45e5aa569d2 100644 --- a/drivers/hid/hid-appleir.c +++ b/drivers/hid/hid-appleir.c @@ -188,7 +188,7 @@ static int appleir_raw_event(struct hid_device *hid, struct hid_report *report, static const u8 flatbattery[] = { 0x25, 0x87, 0xe0 }; unsigned long flags; - if (len != 5) + if (len != 5 || !(hid->claimed & HID_CLAIMED_INPUT)) goto out; if (!memcmp(data, keydown, sizeof(keydown))) { diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c index 22683ec819aa..646ba5b92e0b 100644 --- a/drivers/hid/hid-google-hammer.c +++ b/drivers/hid/hid-google-hammer.c @@ -268,11 +268,13 @@ static void cbas_ec_remove(struct platform_device *pdev) mutex_unlock(&cbas_ec_reglock); } +#ifdef CONFIG_ACPI static const struct acpi_device_id cbas_ec_acpi_ids[] = { { "GOOG000B", 0 }, { } }; MODULE_DEVICE_TABLE(acpi, cbas_ec_acpi_ids); +#endif #ifdef CONFIG_OF static const struct of_device_id cbas_ec_of_match[] = { diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c index 7b3596689878..19b7bb0c3d7f 100644 --- a/drivers/hid/hid-steam.c +++ b/drivers/hid/hid-steam.c @@ -1327,11 +1327,11 @@ static void steam_remove(struct hid_device *hdev) return; } + hid_destroy_device(steam->client_hdev); cancel_delayed_work_sync(&steam->mode_switch); cancel_work_sync(&steam->work_connect); cancel_work_sync(&steam->rumble_work); cancel_work_sync(&steam->unregister_work); - hid_destroy_device(steam->client_hdev); steam->client_hdev = NULL; steam->client_opened = 0; if (steam->quirks & STEAM_QUIRK_WIRELESS) { diff --git a/drivers/hid/intel-ish-hid/ishtp-hid-client.c b/drivers/hid/intel-ish-hid/ishtp-hid-client.c index fbd4f8ea1951..af6a5afc1a93 100644 --- a/drivers/hid/intel-ish-hid/ishtp-hid-client.c +++ b/drivers/hid/intel-ish-hid/ishtp-hid-client.c @@ -833,9 +833,9 @@ static void hid_ishtp_cl_remove(struct ishtp_cl_device *cl_device) hid_ishtp_cl); dev_dbg(ishtp_device(cl_device), "%s\n", __func__); - hid_ishtp_cl_deinit(hid_ishtp_cl); ishtp_put_device(cl_device); ishtp_hid_remove(client_data); + hid_ishtp_cl_deinit(hid_ishtp_cl); hid_ishtp_cl = NULL; diff --git a/drivers/hid/intel-ish-hid/ishtp-hid.c b/drivers/hid/intel-ish-hid/ishtp-hid.c index 00c6f0ebf356..be2c62fc8251 100644 --- a/drivers/hid/intel-ish-hid/ishtp-hid.c +++ b/drivers/hid/intel-ish-hid/ishtp-hid.c @@ -261,12 +261,14 @@ int ishtp_hid_probe(unsigned int cur_hid_dev, */ void ishtp_hid_remove(struct ishtp_cl_data *client_data) { + void *data; int i; for (i = 0; i < client_data->num_hid_devices; ++i) { if (client_data->hid_sensor_hubs[i]) { - kfree(client_data->hid_sensor_hubs[i]->driver_data); + data = client_data->hid_sensor_hubs[i]->driver_data; hid_destroy_device(client_data->hid_sensor_hubs[i]); + kfree(data); client_data->hid_sensor_hubs[i] = NULL; } } diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c index 7802bbf5f958..59424103f634 100644 --- a/drivers/hwmon/ad7314.c +++ b/drivers/hwmon/ad7314.c @@ -22,11 +22,13 @@ */ #define AD7314_TEMP_MASK 0x7FE0 #define AD7314_TEMP_SHIFT 5 +#define AD7314_LEADING_ZEROS_MASK BIT(15) /* * ADT7301 and ADT7302 temperature masks */ #define ADT7301_TEMP_MASK 0x3FFF +#define ADT7301_LEADING_ZEROS_MASK (BIT(15) | BIT(14)) enum ad7314_variant { adt7301, @@ -65,12 +67,20 @@ static ssize_t ad7314_temperature_show(struct device *dev, return ret; switch (spi_get_device_id(chip->spi_dev)->driver_data) { case ad7314: + if (ret & AD7314_LEADING_ZEROS_MASK) { + /* Invalid read-out, leading zero part is missing */ + return -EIO; + } data = (ret & AD7314_TEMP_MASK) >> AD7314_TEMP_SHIFT; data = sign_extend32(data, 9); return sprintf(buf, "%d\n", 250 * data); case adt7301: case adt7302: + if (ret & ADT7301_LEADING_ZEROS_MASK) { + /* Invalid read-out, leading zero part is missing */ + return -EIO; + } /* * Documented as a 13 bit twos complement register * with a sign bit - which is a 14 bit 2's complement diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index b5352900463f..0d29c8f97ba7 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -181,40 +181,40 @@ static const struct ntc_compensation ncpXXwf104[] = { }; static const struct ntc_compensation ncpXXxh103[] = { - { .temp_c = -40, .ohm = 247565 }, - { .temp_c = -35, .ohm = 181742 }, - { .temp_c = -30, .ohm = 135128 }, - { .temp_c = -25, .ohm = 101678 }, - { .temp_c = -20, .ohm = 77373 }, - { .temp_c = -15, .ohm = 59504 }, - { .temp_c = -10, .ohm = 46222 }, - { .temp_c = -5, .ohm = 36244 }, - { .temp_c = 0, .ohm = 28674 }, - { .temp_c = 5, .ohm = 22878 }, - { .temp_c = 10, .ohm = 18399 }, - { .temp_c = 15, .ohm = 14910 }, - { .temp_c = 20, .ohm = 12169 }, + { .temp_c = -40, .ohm = 195652 }, + { .temp_c = -35, .ohm = 148171 }, + { .temp_c = -30, .ohm = 113347 }, + { .temp_c = -25, .ohm = 87559 }, + { .temp_c = -20, .ohm = 68237 }, + { .temp_c = -15, .ohm = 53650 }, + { .temp_c = -10, .ohm = 42506 }, + { .temp_c = -5, .ohm = 33892 }, + { .temp_c = 0, .ohm = 27219 }, + { .temp_c = 5, .ohm = 22021 }, + { .temp_c = 10, .ohm = 17926 }, + { .temp_c = 15, .ohm = 14674 }, + { .temp_c = 20, .ohm = 12081 }, { .temp_c = 25, .ohm = 10000 }, - { .temp_c = 30, .ohm = 8271 }, - { .temp_c = 35, .ohm = 6883 }, - { .temp_c = 40, .ohm = 5762 }, - { .temp_c = 45, .ohm = 4851 }, - { .temp_c = 50, .ohm = 4105 }, - { .temp_c = 55, .ohm = 3492 }, - { .temp_c = 60, .ohm = 2985 }, - { .temp_c = 65, .ohm = 2563 }, - { .temp_c = 70, .ohm = 2211 }, - { .temp_c = 75, .ohm = 1915 }, - { .temp_c = 80, .ohm = 1666 }, - { .temp_c = 85, .ohm = 1454 }, - { .temp_c = 90, .ohm = 1275 }, - { .temp_c = 95, .ohm = 1121 }, - { .temp_c = 100, .ohm = 990 }, - { .temp_c = 105, .ohm = 876 }, - { .temp_c = 110, .ohm = 779 }, - { .temp_c = 115, .ohm = 694 }, - { .temp_c = 120, .ohm = 620 }, - { .temp_c = 125, .ohm = 556 }, + { .temp_c = 30, .ohm = 8315 }, + { .temp_c = 35, .ohm = 6948 }, + { .temp_c = 40, .ohm = 5834 }, + { .temp_c = 45, .ohm = 4917 }, + { .temp_c = 50, .ohm = 4161 }, + { .temp_c = 55, .ohm = 3535 }, + { .temp_c = 60, .ohm = 3014 }, + { .temp_c = 65, .ohm = 2586 }, + { .temp_c = 70, .ohm = 2228 }, + { .temp_c = 75, .ohm = 1925 }, + { .temp_c = 80, .ohm = 1669 }, + { .temp_c = 85, .ohm = 1452 }, + { .temp_c = 90, .ohm = 1268 }, + { .temp_c = 95, .ohm = 1110 }, + { .temp_c = 100, .ohm = 974 }, + { .temp_c = 105, .ohm = 858 }, + { .temp_c = 110, .ohm = 758 }, + { .temp_c = 115, .ohm = 672 }, + { .temp_c = 120, .ohm = 596 }, + { .temp_c = 125, .ohm = 531 }, }; /* diff --git a/drivers/hwmon/peci/dimmtemp.c b/drivers/hwmon/peci/dimmtemp.c index 4a72e9712408..b7b09780c7b0 100644 --- a/drivers/hwmon/peci/dimmtemp.c +++ b/drivers/hwmon/peci/dimmtemp.c @@ -127,8 +127,6 @@ static int update_thresholds(struct peci_dimmtemp *priv, int dimm_no) return 0; ret = priv->gen_info->read_thresholds(priv, dimm_order, chan_rank, &data); - if (ret == -ENODATA) /* Use default or previous value */ - return 0; if (ret) return ret; @@ -509,11 +507,11 @@ read_thresholds_icx(struct peci_dimmtemp *priv, int dimm_order, int chan_rank, u ret = peci_ep_pci_local_read(priv->peci_dev, 0, 13, 0, 2, 0xd4, ®_val); if (ret || !(reg_val & BIT(31))) - return -ENODATA; /* Use default or previous value */ + return -ENODATA; ret = peci_ep_pci_local_read(priv->peci_dev, 0, 13, 0, 2, 0xd0, ®_val); if (ret) - return -ENODATA; /* Use default or previous value */ + return -ENODATA; /* * Device 26, Offset 224e0: IMC 0 channel 0 -> rank 0 @@ -546,11 +544,11 @@ read_thresholds_spr(struct peci_dimmtemp *priv, int dimm_order, int chan_rank, u ret = peci_ep_pci_local_read(priv->peci_dev, 0, 30, 0, 2, 0xd4, ®_val); if (ret || !(reg_val & BIT(31))) - return -ENODATA; /* Use default or previous value */ + return -ENODATA; ret = peci_ep_pci_local_read(priv->peci_dev, 0, 30, 0, 2, 0xd0, ®_val); if (ret) - return -ENODATA; /* Use default or previous value */ + return -ENODATA; /* * Device 26, Offset 219a8: IMC 0 channel 0 -> rank 0 diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c index ec40c5c59954..59424dc518c8 100644 --- a/drivers/hwmon/pmbus/pmbus.c +++ b/drivers/hwmon/pmbus/pmbus.c @@ -103,6 +103,8 @@ static int pmbus_identify(struct i2c_client *client, if (pmbus_check_byte_register(client, 0, PMBUS_PAGE)) { int page; + info->pages = PMBUS_PAGES; + for (page = 1; page < PMBUS_PAGES; page++) { if (pmbus_set_page(client, page, 0xff) < 0) break; diff --git a/drivers/hwmon/xgene-hwmon.c b/drivers/hwmon/xgene-hwmon.c index 5e0759a70f6d..92d82faf237f 100644 --- a/drivers/hwmon/xgene-hwmon.c +++ b/drivers/hwmon/xgene-hwmon.c @@ -706,7 +706,7 @@ static int xgene_hwmon_probe(struct platform_device *pdev) goto out; } - if (!ctx->pcc_comm_addr) { + if (IS_ERR_OR_NULL(ctx->pcc_comm_addr)) { dev_err(&pdev->dev, "Failed to ioremap PCC comm region\n"); rc = -ENOMEM; diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c index 0d7b9839e5b6..6bb6af0f96fa 100644 --- a/drivers/hwtracing/intel_th/pci.c +++ b/drivers/hwtracing/intel_th/pci.c @@ -329,6 +329,21 @@ static const struct pci_device_id intel_th_pci_id_table[] = { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa824), .driver_data = (kernel_ulong_t)&intel_th_2x, }, + { + /* Arrow Lake */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7724), + .driver_data = (kernel_ulong_t)&intel_th_2x, + }, + { + /* Panther Lake-H */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe324), + .driver_data = (kernel_ulong_t)&intel_th_2x, + }, + { + /* Panther Lake-P/U */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe424), + .driver_data = (kernel_ulong_t)&intel_th_2x, + }, { /* Alder Lake CPU */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x466f), diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index 955e9eff0099..6fe32f866765 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -1082,7 +1082,7 @@ static int ad7192_update_scan_mode(struct iio_dev *indio_dev, const unsigned lon conf &= ~AD7192_CONF_CHAN_MASK; for_each_set_bit(i, scan_mask, 8) - conf |= FIELD_PREP(AD7192_CONF_CHAN_MASK, i); + conf |= FIELD_PREP(AD7192_CONF_CHAN_MASK, BIT(i)); ret = ad_sd_write_reg(&st->sd, AD7192_REG_CONF, 3, conf); if (ret < 0) diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index d7fd21e7c6e2..3618e769b106 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -329,7 +329,7 @@ static const struct at91_adc_reg_layout sama7g5_layout = { #define AT91_HWFIFO_MAX_SIZE_STR "128" #define AT91_HWFIFO_MAX_SIZE 128 -#define AT91_SAMA5D2_CHAN_SINGLE(index, num, addr) \ +#define AT91_SAMA_CHAN_SINGLE(index, num, addr, rbits) \ { \ .type = IIO_VOLTAGE, \ .channel = num, \ @@ -337,7 +337,7 @@ static const struct at91_adc_reg_layout sama7g5_layout = { .scan_index = index, \ .scan_type = { \ .sign = 'u', \ - .realbits = 14, \ + .realbits = rbits, \ .storagebits = 16, \ }, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ @@ -350,7 +350,13 @@ static const struct at91_adc_reg_layout sama7g5_layout = { .indexed = 1, \ } -#define AT91_SAMA5D2_CHAN_DIFF(index, num, num2, addr) \ +#define AT91_SAMA5D2_CHAN_SINGLE(index, num, addr) \ + AT91_SAMA_CHAN_SINGLE(index, num, addr, 14) + +#define AT91_SAMA7G5_CHAN_SINGLE(index, num, addr) \ + AT91_SAMA_CHAN_SINGLE(index, num, addr, 16) + +#define AT91_SAMA_CHAN_DIFF(index, num, num2, addr, rbits) \ { \ .type = IIO_VOLTAGE, \ .differential = 1, \ @@ -360,7 +366,7 @@ static const struct at91_adc_reg_layout sama7g5_layout = { .scan_index = index, \ .scan_type = { \ .sign = 's', \ - .realbits = 14, \ + .realbits = rbits, \ .storagebits = 16, \ }, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ @@ -373,6 +379,12 @@ static const struct at91_adc_reg_layout sama7g5_layout = { .indexed = 1, \ } +#define AT91_SAMA5D2_CHAN_DIFF(index, num, num2, addr) \ + AT91_SAMA_CHAN_DIFF(index, num, num2, addr, 14) + +#define AT91_SAMA7G5_CHAN_DIFF(index, num, num2, addr) \ + AT91_SAMA_CHAN_DIFF(index, num, num2, addr, 16) + #define AT91_SAMA5D2_CHAN_TOUCH(num, name, mod) \ { \ .type = IIO_POSITIONRELATIVE, \ @@ -666,30 +678,30 @@ static const struct iio_chan_spec at91_sama5d2_adc_channels[] = { }; static const struct iio_chan_spec at91_sama7g5_adc_channels[] = { - AT91_SAMA5D2_CHAN_SINGLE(0, 0, 0x60), - AT91_SAMA5D2_CHAN_SINGLE(1, 1, 0x64), - AT91_SAMA5D2_CHAN_SINGLE(2, 2, 0x68), - AT91_SAMA5D2_CHAN_SINGLE(3, 3, 0x6c), - AT91_SAMA5D2_CHAN_SINGLE(4, 4, 0x70), - AT91_SAMA5D2_CHAN_SINGLE(5, 5, 0x74), - AT91_SAMA5D2_CHAN_SINGLE(6, 6, 0x78), - AT91_SAMA5D2_CHAN_SINGLE(7, 7, 0x7c), - AT91_SAMA5D2_CHAN_SINGLE(8, 8, 0x80), - AT91_SAMA5D2_CHAN_SINGLE(9, 9, 0x84), - AT91_SAMA5D2_CHAN_SINGLE(10, 10, 0x88), - AT91_SAMA5D2_CHAN_SINGLE(11, 11, 0x8c), - AT91_SAMA5D2_CHAN_SINGLE(12, 12, 0x90), - AT91_SAMA5D2_CHAN_SINGLE(13, 13, 0x94), - AT91_SAMA5D2_CHAN_SINGLE(14, 14, 0x98), - AT91_SAMA5D2_CHAN_SINGLE(15, 15, 0x9c), - AT91_SAMA5D2_CHAN_DIFF(16, 0, 1, 0x60), - AT91_SAMA5D2_CHAN_DIFF(17, 2, 3, 0x68), - AT91_SAMA5D2_CHAN_DIFF(18, 4, 5, 0x70), - AT91_SAMA5D2_CHAN_DIFF(19, 6, 7, 0x78), - AT91_SAMA5D2_CHAN_DIFF(20, 8, 9, 0x80), - AT91_SAMA5D2_CHAN_DIFF(21, 10, 11, 0x88), - AT91_SAMA5D2_CHAN_DIFF(22, 12, 13, 0x90), - AT91_SAMA5D2_CHAN_DIFF(23, 14, 15, 0x98), + AT91_SAMA7G5_CHAN_SINGLE(0, 0, 0x60), + AT91_SAMA7G5_CHAN_SINGLE(1, 1, 0x64), + AT91_SAMA7G5_CHAN_SINGLE(2, 2, 0x68), + AT91_SAMA7G5_CHAN_SINGLE(3, 3, 0x6c), + AT91_SAMA7G5_CHAN_SINGLE(4, 4, 0x70), + AT91_SAMA7G5_CHAN_SINGLE(5, 5, 0x74), + AT91_SAMA7G5_CHAN_SINGLE(6, 6, 0x78), + AT91_SAMA7G5_CHAN_SINGLE(7, 7, 0x7c), + AT91_SAMA7G5_CHAN_SINGLE(8, 8, 0x80), + AT91_SAMA7G5_CHAN_SINGLE(9, 9, 0x84), + AT91_SAMA7G5_CHAN_SINGLE(10, 10, 0x88), + AT91_SAMA7G5_CHAN_SINGLE(11, 11, 0x8c), + AT91_SAMA7G5_CHAN_SINGLE(12, 12, 0x90), + AT91_SAMA7G5_CHAN_SINGLE(13, 13, 0x94), + AT91_SAMA7G5_CHAN_SINGLE(14, 14, 0x98), + AT91_SAMA7G5_CHAN_SINGLE(15, 15, 0x9c), + AT91_SAMA7G5_CHAN_DIFF(16, 0, 1, 0x60), + AT91_SAMA7G5_CHAN_DIFF(17, 2, 3, 0x68), + AT91_SAMA7G5_CHAN_DIFF(18, 4, 5, 0x70), + AT91_SAMA7G5_CHAN_DIFF(19, 6, 7, 0x78), + AT91_SAMA7G5_CHAN_DIFF(20, 8, 9, 0x80), + AT91_SAMA7G5_CHAN_DIFF(21, 10, 11, 0x88), + AT91_SAMA7G5_CHAN_DIFF(22, 12, 13, 0x90), + AT91_SAMA7G5_CHAN_DIFF(23, 14, 15, 0x98), IIO_CHAN_SOFT_TIMESTAMP(24), AT91_SAMA5D2_CHAN_TEMP(AT91_SAMA7G5_ADC_TEMP_CHANNEL, "temp", 0xdc), }; diff --git a/drivers/iio/dac/ad3552r.c b/drivers/iio/dac/ad3552r.c index 7d61b2fe6624..390d3fab2147 100644 --- a/drivers/iio/dac/ad3552r.c +++ b/drivers/iio/dac/ad3552r.c @@ -714,6 +714,12 @@ static int ad3552r_reset(struct ad3552r_desc *dac) return ret; } + /* Clear reset error flag, see ad3552r manual, rev B table 38. */ + ret = ad3552r_write_reg(dac, AD3552R_REG_ADDR_ERR_STATUS, + AD3552R_MASK_RESET_STATUS); + if (ret) + return ret; + return ad3552r_update_reg_field(dac, addr_mask_map[AD3552R_ADDR_ASCENSION][0], addr_mask_map[AD3552R_ADDR_ASCENSION][1], diff --git a/drivers/iio/filter/admv8818.c b/drivers/iio/filter/admv8818.c index 848baa6e3bbf..d85b7d3de866 100644 --- a/drivers/iio/filter/admv8818.c +++ b/drivers/iio/filter/admv8818.c @@ -574,21 +574,15 @@ static int admv8818_init(struct admv8818_state *st) struct spi_device *spi = st->spi; unsigned int chip_id; - ret = regmap_update_bits(st->regmap, ADMV8818_REG_SPI_CONFIG_A, - ADMV8818_SOFTRESET_N_MSK | - ADMV8818_SOFTRESET_MSK, - FIELD_PREP(ADMV8818_SOFTRESET_N_MSK, 1) | - FIELD_PREP(ADMV8818_SOFTRESET_MSK, 1)); + ret = regmap_write(st->regmap, ADMV8818_REG_SPI_CONFIG_A, + ADMV8818_SOFTRESET_N_MSK | ADMV8818_SOFTRESET_MSK); if (ret) { dev_err(&spi->dev, "ADMV8818 Soft Reset failed.\n"); return ret; } - ret = regmap_update_bits(st->regmap, ADMV8818_REG_SPI_CONFIG_A, - ADMV8818_SDOACTIVE_N_MSK | - ADMV8818_SDOACTIVE_MSK, - FIELD_PREP(ADMV8818_SDOACTIVE_N_MSK, 1) | - FIELD_PREP(ADMV8818_SDOACTIVE_MSK, 1)); + ret = regmap_write(st->regmap, ADMV8818_REG_SPI_CONFIG_A, + ADMV8818_SDOACTIVE_N_MSK | ADMV8818_SDOACTIVE_MSK); if (ret) { dev_err(&spi->dev, "ADMV8818 SDO Enable failed.\n"); return ret; diff --git a/drivers/iio/light/apds9306.c b/drivers/iio/light/apds9306.c index 079e02be1005..7f9d6cac8adb 100644 --- a/drivers/iio/light/apds9306.c +++ b/drivers/iio/light/apds9306.c @@ -108,11 +108,11 @@ static const struct part_id_gts_multiplier apds9306_gts_mul[] = { { .part_id = 0xB1, .max_scale_int = 16, - .max_scale_nano = 3264320, + .max_scale_nano = 326432000, }, { .part_id = 0xB3, .max_scale_int = 14, - .max_scale_nano = 9712000, + .max_scale_nano = 97120000, }, }; diff --git a/drivers/misc/cardreader/rtsx_usb.c b/drivers/misc/cardreader/rtsx_usb.c index 285a748748d7..f150d8769f19 100644 --- a/drivers/misc/cardreader/rtsx_usb.c +++ b/drivers/misc/cardreader/rtsx_usb.c @@ -286,7 +286,6 @@ static int rtsx_usb_get_status_with_bulk(struct rtsx_ucr *ucr, u16 *status) int rtsx_usb_get_card_status(struct rtsx_ucr *ucr, u16 *status) { int ret; - u8 interrupt_val = 0; u16 *buf; if (!status) @@ -309,20 +308,6 @@ int rtsx_usb_get_card_status(struct rtsx_ucr *ucr, u16 *status) ret = rtsx_usb_get_status_with_bulk(ucr, status); } - rtsx_usb_read_register(ucr, CARD_INT_PEND, &interrupt_val); - /* Cross check presence with interrupts */ - if (*status & XD_CD) - if (!(interrupt_val & XD_INT)) - *status &= ~XD_CD; - - if (*status & SD_CD) - if (!(interrupt_val & SD_INT)) - *status &= ~SD_CD; - - if (*status & MS_CD) - if (!(interrupt_val & MS_INT)) - *status &= ~MS_CD; - /* usb_control_msg may return positive when success */ if (ret < 0) return ret; diff --git a/drivers/misc/eeprom/digsy_mtc_eeprom.c b/drivers/misc/eeprom/digsy_mtc_eeprom.c index 88888485e6f8..ee58f7ce5bfa 100644 --- a/drivers/misc/eeprom/digsy_mtc_eeprom.c +++ b/drivers/misc/eeprom/digsy_mtc_eeprom.c @@ -50,7 +50,7 @@ static struct platform_device digsy_mtc_eeprom = { }; static struct gpiod_lookup_table eeprom_spi_gpiod_table = { - .dev_id = "spi_gpio", + .dev_id = "spi_gpio.1", .table = { GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_CLK, "sck", GPIO_ACTIVE_HIGH), diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h index c3a6657dcd4a..a5f88ec97df7 100644 --- a/drivers/misc/mei/hw-me-regs.h +++ b/drivers/misc/mei/hw-me-regs.h @@ -117,6 +117,8 @@ #define MEI_DEV_ID_LNL_M 0xA870 /* Lunar Lake Point M */ +#define MEI_DEV_ID_PTL_P 0xE470 /* Panther Lake P */ + /* * MEI HW Section */ diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index 6589635f8ba3..d6ff9d82ae94 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -124,6 +124,8 @@ static const struct pci_device_id mei_me_pci_tbl[] = { {MEI_PCI_DEVICE(MEI_DEV_ID_LNL_M, MEI_ME_PCH15_CFG)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_PTL_P, MEI_ME_PCH15_CFG)}, + /* required last entry */ {0, } }; diff --git a/drivers/misc/mei/vsc-tp.c b/drivers/misc/mei/vsc-tp.c index 1618cca9a731..ef0a9f423c8f 100644 --- a/drivers/misc/mei/vsc-tp.c +++ b/drivers/misc/mei/vsc-tp.c @@ -504,7 +504,7 @@ static int vsc_tp_probe(struct spi_device *spi) if (ret) return ret; - tp->wakeuphost = devm_gpiod_get(dev, "wakeuphost", GPIOD_IN); + tp->wakeuphost = devm_gpiod_get(dev, "wakeuphostint", GPIOD_IN); if (IS_ERR(tp->wakeuphost)) return PTR_ERR(tp->wakeuphost); diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c index 7fea00c7ca8a..c60386bf2d1a 100644 --- a/drivers/net/caif/caif_virtio.c +++ b/drivers/net/caif/caif_virtio.c @@ -745,7 +745,7 @@ static int cfv_probe(struct virtio_device *vdev) if (cfv->vr_rx) vdev->vringh_config->del_vrhs(cfv->vdev); - if (cfv->vdev) + if (cfv->vq_tx) vdev->config->del_vqs(cfv->vdev); free_netdev(netdev); return err; diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index d84ee1b419a6..abc979fbb45d 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2590,7 +2590,8 @@ mt7531_setup_common(struct dsa_switch *ds) if (ret < 0) return ret; - return 0; + /* Setup VLAN ID 0 for VLAN-unaware bridges */ + return mt7530_setup_vlan0(priv); } static int @@ -2686,11 +2687,6 @@ mt7531_setup(struct dsa_switch *ds) if (ret) return ret; - /* Setup VLAN ID 0 for VLAN-unaware bridges */ - ret = mt7530_setup_vlan0(priv); - if (ret) - return ret; - ds->assisted_learning_on_cpu_port = true; ds->mtu_enforcement_ingress = true; diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h index e48b861e4ce1..270ff9aab335 100644 --- a/drivers/net/ethernet/emulex/benet/be.h +++ b/drivers/net/ethernet/emulex/benet/be.h @@ -562,7 +562,7 @@ struct be_adapter { struct be_dma_mem mbox_mem_alloced; struct be_mcc_obj mcc_obj; - struct mutex mcc_lock; /* For serializing mcc cmds to BE card */ + spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */ spinlock_t mcc_cq_lock; u16 cfg_num_rx_irqs; /* configured via set-channels */ diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index 61adcebeef01..51b8377edd1d 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -575,7 +575,7 @@ int be_process_mcc(struct be_adapter *adapter) /* Wait till no more pending mcc requests are present */ static int be_mcc_wait_compl(struct be_adapter *adapter) { -#define mcc_timeout 12000 /* 12s timeout */ +#define mcc_timeout 120000 /* 12s timeout */ int i, status = 0; struct be_mcc_obj *mcc_obj = &adapter->mcc_obj; @@ -589,7 +589,7 @@ static int be_mcc_wait_compl(struct be_adapter *adapter) if (atomic_read(&mcc_obj->q.used) == 0) break; - usleep_range(500, 1000); + udelay(100); } if (i == mcc_timeout) { dev_err(&adapter->pdev->dev, "FW not responding\n"); @@ -866,7 +866,7 @@ static bool use_mcc(struct be_adapter *adapter) static int be_cmd_lock(struct be_adapter *adapter) { if (use_mcc(adapter)) { - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); return 0; } else { return mutex_lock_interruptible(&adapter->mbox_lock); @@ -877,7 +877,7 @@ static int be_cmd_lock(struct be_adapter *adapter) static void be_cmd_unlock(struct be_adapter *adapter) { if (use_mcc(adapter)) - return mutex_unlock(&adapter->mcc_lock); + return spin_unlock_bh(&adapter->mcc_lock); else return mutex_unlock(&adapter->mbox_lock); } @@ -1047,7 +1047,7 @@ int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr, struct be_cmd_req_mac_query *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1076,7 +1076,7 @@ int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr, } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1088,7 +1088,7 @@ int be_cmd_pmac_add(struct be_adapter *adapter, const u8 *mac_addr, struct be_cmd_req_pmac_add *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1113,7 +1113,7 @@ int be_cmd_pmac_add(struct be_adapter *adapter, const u8 *mac_addr, } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); if (base_status(status) == MCC_STATUS_UNAUTHORIZED_REQUEST) status = -EPERM; @@ -1131,7 +1131,7 @@ int be_cmd_pmac_del(struct be_adapter *adapter, u32 if_id, int pmac_id, u32 dom) if (pmac_id == -1) return 0; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1151,7 +1151,7 @@ int be_cmd_pmac_del(struct be_adapter *adapter, u32 if_id, int pmac_id, u32 dom) status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1414,7 +1414,7 @@ int be_cmd_rxq_create(struct be_adapter *adapter, struct be_dma_mem *q_mem = &rxq->dma_mem; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1444,7 +1444,7 @@ int be_cmd_rxq_create(struct be_adapter *adapter, } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1508,7 +1508,7 @@ int be_cmd_rxq_destroy(struct be_adapter *adapter, struct be_queue_info *q) struct be_cmd_req_q_destroy *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1525,7 +1525,7 @@ int be_cmd_rxq_destroy(struct be_adapter *adapter, struct be_queue_info *q) q->created = false; err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1593,7 +1593,7 @@ int be_cmd_get_stats(struct be_adapter *adapter, struct be_dma_mem *nonemb_cmd) struct be_cmd_req_hdr *hdr; int status = 0; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1621,7 +1621,7 @@ int be_cmd_get_stats(struct be_adapter *adapter, struct be_dma_mem *nonemb_cmd) adapter->stats_cmd_sent = true; err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1637,7 +1637,7 @@ int lancer_cmd_get_pport_stats(struct be_adapter *adapter, CMD_SUBSYSTEM_ETH)) return -EPERM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1660,7 +1660,7 @@ int lancer_cmd_get_pport_stats(struct be_adapter *adapter, adapter->stats_cmd_sent = true; err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1697,7 +1697,7 @@ int be_cmd_link_status_query(struct be_adapter *adapter, u16 *link_speed, struct be_cmd_req_link_status *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); if (link_status) *link_status = LINK_DOWN; @@ -1736,7 +1736,7 @@ int be_cmd_link_status_query(struct be_adapter *adapter, u16 *link_speed, } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1747,7 +1747,7 @@ int be_cmd_get_die_temperature(struct be_adapter *adapter) struct be_cmd_req_get_cntl_addnl_attribs *req; int status = 0; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1762,7 +1762,7 @@ int be_cmd_get_die_temperature(struct be_adapter *adapter) status = be_mcc_notify(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1811,7 +1811,7 @@ int be_cmd_get_fat_dump(struct be_adapter *adapter, u32 buf_len, void *buf) if (!get_fat_cmd.va) return -ENOMEM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); while (total_size) { buf_size = min(total_size, (u32)60 * 1024); @@ -1849,9 +1849,9 @@ int be_cmd_get_fat_dump(struct be_adapter *adapter, u32 buf_len, void *buf) log_offset += buf_size; } err: + spin_unlock_bh(&adapter->mcc_lock); dma_free_coherent(&adapter->pdev->dev, get_fat_cmd.size, get_fat_cmd.va, get_fat_cmd.dma); - mutex_unlock(&adapter->mcc_lock); return status; } @@ -1862,7 +1862,7 @@ int be_cmd_get_fw_ver(struct be_adapter *adapter) struct be_cmd_req_get_fw_version *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1885,7 +1885,7 @@ int be_cmd_get_fw_ver(struct be_adapter *adapter) sizeof(adapter->fw_on_flash)); } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1899,7 +1899,7 @@ static int __be_cmd_modify_eqd(struct be_adapter *adapter, struct be_cmd_req_modify_eq_delay *req; int status = 0, i; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1922,7 +1922,7 @@ static int __be_cmd_modify_eqd(struct be_adapter *adapter, status = be_mcc_notify(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1949,7 +1949,7 @@ int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array, struct be_cmd_req_vlan_config *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1971,7 +1971,7 @@ int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -1982,7 +1982,7 @@ static int __be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 value) struct be_cmd_req_rx_filter *req = mem->va; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2015,7 +2015,7 @@ static int __be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 value) status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2046,7 +2046,7 @@ int be_cmd_set_flow_control(struct be_adapter *adapter, u32 tx_fc, u32 rx_fc) CMD_SUBSYSTEM_COMMON)) return -EPERM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2066,7 +2066,7 @@ int be_cmd_set_flow_control(struct be_adapter *adapter, u32 tx_fc, u32 rx_fc) status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); if (base_status(status) == MCC_STATUS_FEATURE_NOT_SUPPORTED) return -EOPNOTSUPP; @@ -2085,7 +2085,7 @@ int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc) CMD_SUBSYSTEM_COMMON)) return -EPERM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2108,7 +2108,7 @@ int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc) } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2189,7 +2189,7 @@ int be_cmd_rss_config(struct be_adapter *adapter, u8 *rsstable, if (!(be_if_cap_flags(adapter) & BE_IF_FLAGS_RSS)) return 0; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2214,7 +2214,7 @@ int be_cmd_rss_config(struct be_adapter *adapter, u8 *rsstable, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2226,7 +2226,7 @@ int be_cmd_set_beacon_state(struct be_adapter *adapter, u8 port_num, struct be_cmd_req_enable_disable_beacon *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2247,7 +2247,7 @@ int be_cmd_set_beacon_state(struct be_adapter *adapter, u8 port_num, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2258,7 +2258,7 @@ int be_cmd_get_beacon_state(struct be_adapter *adapter, u8 port_num, u32 *state) struct be_cmd_req_get_beacon_state *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2282,7 +2282,7 @@ int be_cmd_get_beacon_state(struct be_adapter *adapter, u8 port_num, u32 *state) } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2306,7 +2306,7 @@ int be_cmd_read_port_transceiver_data(struct be_adapter *adapter, return -ENOMEM; } - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2328,7 +2328,7 @@ int be_cmd_read_port_transceiver_data(struct be_adapter *adapter, memcpy(data, resp->page_data + off, len); } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); return status; } @@ -2345,7 +2345,7 @@ static int lancer_cmd_write_object(struct be_adapter *adapter, void *ctxt = NULL; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); adapter->flash_status = 0; wrb = wrb_from_mccq(adapter); @@ -2387,7 +2387,7 @@ static int lancer_cmd_write_object(struct be_adapter *adapter, if (status) goto err_unlock; - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); if (!wait_for_completion_timeout(&adapter->et_cmd_compl, msecs_to_jiffies(60000))) @@ -2406,7 +2406,7 @@ static int lancer_cmd_write_object(struct be_adapter *adapter, return status; err_unlock: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2460,7 +2460,7 @@ static int lancer_cmd_delete_object(struct be_adapter *adapter, struct be_mcc_wrb *wrb; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2478,7 +2478,7 @@ static int lancer_cmd_delete_object(struct be_adapter *adapter, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2491,7 +2491,7 @@ int lancer_cmd_read_object(struct be_adapter *adapter, struct be_dma_mem *cmd, struct lancer_cmd_resp_read_object *resp; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2525,7 +2525,7 @@ int lancer_cmd_read_object(struct be_adapter *adapter, struct be_dma_mem *cmd, } err_unlock: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2537,7 +2537,7 @@ static int be_cmd_write_flashrom(struct be_adapter *adapter, struct be_cmd_write_flashrom *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); adapter->flash_status = 0; wrb = wrb_from_mccq(adapter); @@ -2562,7 +2562,7 @@ static int be_cmd_write_flashrom(struct be_adapter *adapter, if (status) goto err_unlock; - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); if (!wait_for_completion_timeout(&adapter->et_cmd_compl, msecs_to_jiffies(40000))) @@ -2573,7 +2573,7 @@ static int be_cmd_write_flashrom(struct be_adapter *adapter, return status; err_unlock: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -2584,7 +2584,7 @@ static int be_cmd_get_flash_crc(struct be_adapter *adapter, u8 *flashed_crc, struct be_mcc_wrb *wrb; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -2611,7 +2611,7 @@ static int be_cmd_get_flash_crc(struct be_adapter *adapter, u8 *flashed_crc, memcpy(flashed_crc, req->crc, 4); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3217,7 +3217,7 @@ int be_cmd_enable_magic_wol(struct be_adapter *adapter, u8 *mac, struct be_cmd_req_acpi_wol_magic_config *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3234,7 +3234,7 @@ int be_cmd_enable_magic_wol(struct be_adapter *adapter, u8 *mac, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3249,7 +3249,7 @@ int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num, CMD_SUBSYSTEM_LOWLEVEL)) return -EPERM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3272,7 +3272,7 @@ int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num, if (status) goto err_unlock; - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); if (!wait_for_completion_timeout(&adapter->et_cmd_compl, msecs_to_jiffies(SET_LB_MODE_TIMEOUT))) @@ -3281,7 +3281,7 @@ int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num, return status; err_unlock: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3298,7 +3298,7 @@ int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num, CMD_SUBSYSTEM_LOWLEVEL)) return -EPERM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3324,7 +3324,7 @@ int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num, if (status) goto err; - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); wait_for_completion(&adapter->et_cmd_compl); resp = embedded_payload(wrb); @@ -3332,7 +3332,7 @@ int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num, return status; err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3348,7 +3348,7 @@ int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern, CMD_SUBSYSTEM_LOWLEVEL)) return -EPERM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3382,7 +3382,7 @@ int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern, } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3393,7 +3393,7 @@ int be_cmd_get_seeprom_data(struct be_adapter *adapter, struct be_cmd_req_seeprom_read *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3409,7 +3409,7 @@ int be_cmd_get_seeprom_data(struct be_adapter *adapter, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3424,7 +3424,7 @@ int be_cmd_get_phy_info(struct be_adapter *adapter) CMD_SUBSYSTEM_COMMON)) return -EPERM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3469,7 +3469,7 @@ int be_cmd_get_phy_info(struct be_adapter *adapter) } dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3479,7 +3479,7 @@ static int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain) struct be_cmd_req_set_qos *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3499,7 +3499,7 @@ static int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain) status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3611,7 +3611,7 @@ int be_cmd_get_fn_privileges(struct be_adapter *adapter, u32 *privilege, struct be_cmd_req_get_fn_privileges *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3643,7 +3643,7 @@ int be_cmd_get_fn_privileges(struct be_adapter *adapter, u32 *privilege, } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3655,7 +3655,7 @@ int be_cmd_set_fn_privileges(struct be_adapter *adapter, u32 privileges, struct be_cmd_req_set_fn_privileges *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3675,7 +3675,7 @@ int be_cmd_set_fn_privileges(struct be_adapter *adapter, u32 privileges, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3707,7 +3707,7 @@ int be_cmd_get_mac_from_list(struct be_adapter *adapter, u8 *mac, return -ENOMEM; } - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3771,7 +3771,7 @@ int be_cmd_get_mac_from_list(struct be_adapter *adapter, u8 *mac, } out: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); dma_free_coherent(&adapter->pdev->dev, get_mac_list_cmd.size, get_mac_list_cmd.va, get_mac_list_cmd.dma); return status; @@ -3831,7 +3831,7 @@ int be_cmd_set_mac_list(struct be_adapter *adapter, u8 *mac_array, if (!cmd.va) return -ENOMEM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3853,7 +3853,7 @@ int be_cmd_set_mac_list(struct be_adapter *adapter, u8 *mac_array, err: dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3889,7 +3889,7 @@ int be_cmd_set_hsw_config(struct be_adapter *adapter, u16 pvid, CMD_SUBSYSTEM_COMMON)) return -EPERM; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3930,7 +3930,7 @@ int be_cmd_set_hsw_config(struct be_adapter *adapter, u16 pvid, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -3944,7 +3944,7 @@ int be_cmd_get_hsw_config(struct be_adapter *adapter, u16 *pvid, int status; u16 vid; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -3991,7 +3991,7 @@ int be_cmd_get_hsw_config(struct be_adapter *adapter, u16 *pvid, } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -4190,7 +4190,7 @@ int be_cmd_set_ext_fat_capabilites(struct be_adapter *adapter, struct be_cmd_req_set_ext_fat_caps *req; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -4206,7 +4206,7 @@ int be_cmd_set_ext_fat_capabilites(struct be_adapter *adapter, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -4684,7 +4684,7 @@ int be_cmd_manage_iface(struct be_adapter *adapter, u32 iface, u8 op) if (iface == 0xFFFFFFFF) return -1; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -4701,7 +4701,7 @@ int be_cmd_manage_iface(struct be_adapter *adapter, u32 iface, u8 op) status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -4735,7 +4735,7 @@ int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg, struct be_cmd_resp_get_iface_list *resp; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -4756,7 +4756,7 @@ int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg, } err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -4850,7 +4850,7 @@ int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain) if (BEx_chip(adapter)) return 0; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -4868,7 +4868,7 @@ int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain) req->enable = 1; status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -4941,7 +4941,7 @@ __be_cmd_set_logical_link_config(struct be_adapter *adapter, u32 link_config = 0; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -4969,7 +4969,7 @@ __be_cmd_set_logical_link_config(struct be_adapter *adapter, status = be_mcc_notify_wait(adapter); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -5000,8 +5000,7 @@ int be_cmd_set_features(struct be_adapter *adapter) struct be_mcc_wrb *wrb; int status; - if (mutex_lock_interruptible(&adapter->mcc_lock)) - return -1; + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -5039,7 +5038,7 @@ int be_cmd_set_features(struct be_adapter *adapter) dev_info(&adapter->pdev->dev, "Adapter does not support HW error recovery\n"); - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } @@ -5053,7 +5052,7 @@ int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload, struct be_cmd_resp_hdr *resp; int status; - mutex_lock(&adapter->mcc_lock); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -5076,7 +5075,7 @@ int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload, memcpy(wrb_payload, resp, sizeof(*resp) + resp->response_length); be_dws_le_to_cpu(wrb_payload, sizeof(*resp) + resp->response_length); err: - mutex_unlock(&adapter->mcc_lock); + spin_unlock_bh(&adapter->mcc_lock); return status; } EXPORT_SYMBOL(be_roce_mcc_cmd); diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 875fe379eea2..3d2e21592119 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -5667,8 +5667,8 @@ static int be_drv_init(struct be_adapter *adapter) } mutex_init(&adapter->mbox_lock); - mutex_init(&adapter->mcc_lock); mutex_init(&adapter->rx_filter_lock); + spin_lock_init(&adapter->mcc_lock); spin_lock_init(&adapter->mcc_cq_lock); init_completion(&adapter->et_cmd_compl); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c index bab16c2191b2..181af419b878 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c @@ -483,7 +483,7 @@ int hclge_ptp_init(struct hclge_dev *hdev) ret = hclge_ptp_get_cycle(hdev); if (ret) - return ret; + goto out; } ret = hclge_ptp_int_en(hdev, true); diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c index f5acfb7d4ff6..ab7c2750c104 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -11,6 +11,8 @@ #include "dwmac_dma.h" #include "dwmac1000.h" +#define DRIVER_NAME "dwmac-loongson-pci" + /* Normal Loongson Tx Summary */ #define DMA_INTR_ENA_NIE_TX_LOONGSON 0x00040000 /* Normal Loongson Rx Summary */ @@ -568,7 +570,7 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id for (i = 0; i < PCI_STD_NUM_BARS; i++) { if (pci_resource_len(pdev, i) == 0) continue; - ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); + ret = pcim_iomap_regions(pdev, BIT(0), DRIVER_NAME); if (ret) goto err_disable_device; break; @@ -687,7 +689,7 @@ static const struct pci_device_id loongson_dwmac_id_table[] = { MODULE_DEVICE_TABLE(pci, loongson_dwmac_id_table); static struct pci_driver loongson_dwmac_driver = { - .name = "dwmac-loongson-pci", + .name = DRIVER_NAME, .id_table = loongson_dwmac_id_table, .probe = loongson_dwmac_probe, .remove = loongson_dwmac_remove, diff --git a/drivers/net/ipa/data/ipa_data-v4.7.c b/drivers/net/ipa/data/ipa_data-v4.7.c index c8c23d9be961..41f212209993 100644 --- a/drivers/net/ipa/data/ipa_data-v4.7.c +++ b/drivers/net/ipa/data/ipa_data-v4.7.c @@ -28,20 +28,18 @@ enum ipa_resource_type { enum ipa_rsrc_group_id { /* Source resource group identifiers */ IPA_RSRC_GROUP_SRC_UL_DL = 0, - IPA_RSRC_GROUP_SRC_UC_RX_Q, IPA_RSRC_GROUP_SRC_COUNT, /* Last in set; not a source group */ /* Destination resource group identifiers */ - IPA_RSRC_GROUP_DST_UL_DL_DPL = 0, - IPA_RSRC_GROUP_DST_UNUSED_1, + IPA_RSRC_GROUP_DST_UL_DL = 0, IPA_RSRC_GROUP_DST_COUNT, /* Last; not a destination group */ }; /* QSB configuration data for an SoC having IPA v4.7 */ static const struct ipa_qsb_data ipa_qsb_data[] = { [IPA_QSB_MASTER_DDR] = { - .max_writes = 8, - .max_reads = 0, /* no limit (hardware max) */ + .max_writes = 12, + .max_reads = 13, .max_reads_beats = 120, }, }; @@ -81,7 +79,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, .endpoint = { .config = { - .resource_group = IPA_RSRC_GROUP_DST_UL_DL_DPL, + .resource_group = IPA_RSRC_GROUP_DST_UL_DL, .aggregation = true, .status_enable = true, .rx = { @@ -106,6 +104,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { .filter_support = true, .config = { .resource_group = IPA_RSRC_GROUP_SRC_UL_DL, + .checksum = true, .qmap = true, .status_enable = true, .tx = { @@ -128,7 +127,8 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, .endpoint = { .config = { - .resource_group = IPA_RSRC_GROUP_DST_UL_DL_DPL, + .resource_group = IPA_RSRC_GROUP_DST_UL_DL, + .checksum = true, .qmap = true, .aggregation = true, .rx = { @@ -197,12 +197,12 @@ static const struct ipa_resource ipa_resource_src[] = { /* Destination resource configuration data for an SoC having IPA v4.7 */ static const struct ipa_resource ipa_resource_dst[] = { [IPA_RESOURCE_TYPE_DST_DATA_SECTORS] = { - .limits[IPA_RSRC_GROUP_DST_UL_DL_DPL] = { + .limits[IPA_RSRC_GROUP_DST_UL_DL] = { .min = 7, .max = 7, }, }, [IPA_RESOURCE_TYPE_DST_DPS_DMARS] = { - .limits[IPA_RSRC_GROUP_DST_UL_DL_DPL] = { + .limits[IPA_RSRC_GROUP_DST_UL_DL] = { .min = 2, .max = 2, }, }, diff --git a/drivers/net/mctp/mctp-i3c.c b/drivers/net/mctp/mctp-i3c.c index ee9d562f0817..a2b15cddf46e 100644 --- a/drivers/net/mctp/mctp-i3c.c +++ b/drivers/net/mctp/mctp-i3c.c @@ -507,6 +507,9 @@ static int mctp_i3c_header_create(struct sk_buff *skb, struct net_device *dev, { struct mctp_i3c_internal_hdr *ihdr; + if (!daddr || !saddr) + return -EINVAL; + skb_push(skb, sizeof(struct mctp_i3c_internal_hdr)); skb_reset_mac_header(skb); ihdr = (void *)skb_mac_header(skb); diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 4f3e742907cb..c9cfdc33fc5f 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -615,6 +615,49 @@ int phy_ethtool_get_stats(struct phy_device *phydev, } EXPORT_SYMBOL(phy_ethtool_get_stats); +/** + * __phy_ethtool_get_phy_stats - Retrieve standardized PHY statistics + * @phydev: Pointer to the PHY device + * @phy_stats: Pointer to ethtool_eth_phy_stats structure + * @phydev_stats: Pointer to ethtool_phy_stats structure + * + * Fetches PHY statistics using a kernel-defined interface for consistent + * diagnostics. Unlike phy_ethtool_get_stats(), which allows custom stats, + * this function enforces a standardized format for better interoperability. + */ +void __phy_ethtool_get_phy_stats(struct phy_device *phydev, + struct ethtool_eth_phy_stats *phy_stats, + struct ethtool_phy_stats *phydev_stats) +{ + if (!phydev->drv || !phydev->drv->get_phy_stats) + return; + + mutex_lock(&phydev->lock); + phydev->drv->get_phy_stats(phydev, phy_stats, phydev_stats); + mutex_unlock(&phydev->lock); +} + +/** + * __phy_ethtool_get_link_ext_stats - Retrieve extended link statistics for a PHY + * @phydev: Pointer to the PHY device + * @link_stats: Pointer to the structure to store extended link statistics + * + * Populates the ethtool_link_ext_stats structure with link down event counts + * and additional driver-specific link statistics, if available. + */ +void __phy_ethtool_get_link_ext_stats(struct phy_device *phydev, + struct ethtool_link_ext_stats *link_stats) +{ + link_stats->link_down_events = READ_ONCE(phydev->link_down_events); + + if (!phydev->drv || !phydev->drv->get_link_stats) + return; + + mutex_lock(&phydev->lock); + phydev->drv->get_link_stats(phydev, link_stats); + mutex_unlock(&phydev->lock); +} + /** * phy_ethtool_get_plca_cfg - Get PLCA RS configuration * @phydev: the phy_device struct diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 499797646580..119dfa2d6643 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -3776,6 +3776,8 @@ static const struct ethtool_phy_ops phy_ethtool_phy_ops = { static const struct phylib_stubs __phylib_stubs = { .hwtstamp_get = __phy_hwtstamp_get, .hwtstamp_set = __phy_hwtstamp_set, + .get_phy_stats = __phy_ethtool_get_phy_stats, + .get_link_ext_stats = __phy_ethtool_get_link_ext_stats, }; static void phylib_register_stubs(void) diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 4583e15ad03a..1420c4efa48e 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -72,6 +72,17 @@ #define PPP_PROTO_LEN 2 #define PPP_LCP_HDRLEN 4 +/* The filter instructions generated by libpcap are constructed + * assuming a four-byte PPP header on each packet, where the last + * 2 bytes are the protocol field defined in the RFC and the first + * byte of the first 2 bytes indicates the direction. + * The second byte is currently unused, but we still need to initialize + * it to prevent crafted BPF programs from reading them which would + * cause reading of uninitialized data. + */ +#define PPP_FILTER_OUTBOUND_TAG 0x0100 +#define PPP_FILTER_INBOUND_TAG 0x0000 + /* * An instance of /dev/ppp can be associated with either a ppp * interface unit or a ppp channel. In both cases, file->private_data @@ -1762,10 +1773,10 @@ ppp_send_frame(struct ppp *ppp, struct sk_buff *skb) if (proto < 0x8000) { #ifdef CONFIG_PPP_FILTER - /* check if we should pass this packet */ - /* the filter instructions are constructed assuming - a four-byte PPP header on each packet */ - *(u8 *)skb_push(skb, 2) = 1; + /* check if the packet passes the pass and active filters. + * See comment for PPP_FILTER_OUTBOUND_TAG above. + */ + *(__be16 *)skb_push(skb, 2) = htons(PPP_FILTER_OUTBOUND_TAG); if (ppp->pass_filter && bpf_prog_run(ppp->pass_filter, skb) == 0) { if (ppp->debug & 1) @@ -2482,14 +2493,13 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb) /* network protocol frame - give it to the kernel */ #ifdef CONFIG_PPP_FILTER - /* check if the packet passes the pass and active filters */ - /* the filter instructions are constructed assuming - a four-byte PPP header on each packet */ if (ppp->pass_filter || ppp->active_filter) { if (skb_unclone(skb, GFP_ATOMIC)) goto err; - - *(u8 *)skb_push(skb, 2) = 0; + /* Check if the packet passes the pass and active filters. + * See comment for PPP_FILTER_INBOUND_TAG above. + */ + *(__be16 *)skb_push(skb, 2) = htons(PPP_FILTER_INBOUND_TAG); if (ppp->pass_filter && bpf_prog_run(ppp->pass_filter, skb) == 0) { if (ppp->debug & 1) diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index c620911a1193..754e01688900 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -1197,7 +1197,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, if (tlv_len != sizeof(*fseq_ver)) goto invalid_tlv_len; - IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n", + IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %.32s\n", fseq_ver->version); } break; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index 91ca830a7b60..f4276fdee6be 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -1518,6 +1518,13 @@ static ssize_t iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm *mvm, if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) return -EOPNOTSUPP; + /* + * If the firmware is not running, silently succeed since there is + * no data to clear. + */ + if (!iwl_mvm_firmware_running(mvm)) + return count; + mutex_lock(&mvm->mutex); iwl_fw_dbg_clear_monitor_buf(&mvm->fwrt); mutex_unlock(&mvm->mutex); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c index 72fa7ac86516..17b8ccc27569 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c @@ -1030,6 +1030,8 @@ void iwl_mvm_rx_session_protect_notif(struct iwl_mvm *mvm, /* End TE, notify mac80211 */ mvmvif->time_event_data.id = SESSION_PROTECT_CONF_MAX_ID; mvmvif->time_event_data.link_id = -1; + /* set the bit so the ROC cleanup will actually clean up */ + set_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status); iwl_mvm_roc_finished(mvm); ieee80211_remain_on_channel_expired(mvm->hw); } else if (le32_to_cpu(notif->start)) { diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h index 27a7e0b5b3d5..ebe9b25cc53a 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h +++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* - * Copyright (C) 2003-2015, 2018-2024 Intel Corporation + * Copyright (C) 2003-2015, 2018-2025 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -643,7 +643,8 @@ dma_addr_t iwl_pcie_get_sgt_tb_phys(struct sg_table *sgt, unsigned int offset, unsigned int len); struct sg_table *iwl_pcie_prep_tso(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_cmd_meta *cmd_meta, - u8 **hdr, unsigned int hdr_room); + u8 **hdr, unsigned int hdr_room, + unsigned int offset); void iwl_pcie_free_tso_pages(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_cmd_meta *cmd_meta); diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c index b1846abb99b7..477a05cd1288 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright (C) 2017 Intel Deutschland GmbH - * Copyright (C) 2018-2020, 2023-2024 Intel Corporation + * Copyright (C) 2018-2020, 2023-2025 Intel Corporation */ #include <net/tso.h> #include <linux/tcp.h> @@ -188,7 +188,8 @@ static int iwl_txq_gen2_build_amsdu(struct iwl_trans *trans, (3 + snap_ip_tcp_hdrlen + sizeof(struct ethhdr)); /* Our device supports 9 segments at most, it will fit in 1 page */ - sgt = iwl_pcie_prep_tso(trans, skb, out_meta, &start_hdr, hdr_room); + sgt = iwl_pcie_prep_tso(trans, skb, out_meta, &start_hdr, hdr_room, + snap_ip_tcp_hdrlen + hdr_len); if (!sgt) return -ENOMEM; @@ -347,6 +348,7 @@ iwl_tfh_tfd *iwl_txq_gen2_build_tx_amsdu(struct iwl_trans *trans, return tfd; out_err: + iwl_pcie_free_tso_pages(trans, skb, out_meta); iwl_txq_gen2_tfd_unmap(trans, out_meta, tfd); return NULL; } diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c index 9fe050f0ddc1..9fcdd06e126a 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2003-2014, 2018-2021, 2023-2024 Intel Corporation + * Copyright (C) 2003-2014, 2018-2021, 2023-2025 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -1853,6 +1853,7 @@ dma_addr_t iwl_pcie_get_sgt_tb_phys(struct sg_table *sgt, unsigned int offset, * @cmd_meta: command meta to store the scatter list information for unmapping * @hdr: output argument for TSO headers * @hdr_room: requested length for TSO headers + * @offset: offset into the data from which mapping should start * * Allocate space for a scatter gather list and TSO headers and map the SKB * using the scatter gather list. The SKB is unmapped again when the page is @@ -1862,9 +1863,12 @@ dma_addr_t iwl_pcie_get_sgt_tb_phys(struct sg_table *sgt, unsigned int offset, */ struct sg_table *iwl_pcie_prep_tso(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_cmd_meta *cmd_meta, - u8 **hdr, unsigned int hdr_room) + u8 **hdr, unsigned int hdr_room, + unsigned int offset) { struct sg_table *sgt; + unsigned int n_segments = skb_shinfo(skb)->nr_frags + 1; + int orig_nents; if (WARN_ON_ONCE(skb_has_frag_list(skb))) return NULL; @@ -1872,8 +1876,7 @@ struct sg_table *iwl_pcie_prep_tso(struct iwl_trans *trans, struct sk_buff *skb, *hdr = iwl_pcie_get_page_hdr(trans, hdr_room + __alignof__(struct sg_table) + sizeof(struct sg_table) + - (skb_shinfo(skb)->nr_frags + 1) * - sizeof(struct scatterlist), + n_segments * sizeof(struct scatterlist), skb); if (!*hdr) return NULL; @@ -1881,14 +1884,15 @@ struct sg_table *iwl_pcie_prep_tso(struct iwl_trans *trans, struct sk_buff *skb, sgt = (void *)PTR_ALIGN(*hdr + hdr_room, __alignof__(struct sg_table)); sgt->sgl = (void *)(sgt + 1); - sg_init_table(sgt->sgl, skb_shinfo(skb)->nr_frags + 1); + sg_init_table(sgt->sgl, n_segments); /* Only map the data, not the header (it is copied to the TSO page) */ - sgt->orig_nents = skb_to_sgvec(skb, sgt->sgl, skb_headlen(skb), - skb->data_len); - if (WARN_ON_ONCE(sgt->orig_nents <= 0)) + orig_nents = skb_to_sgvec(skb, sgt->sgl, offset, skb->len - offset); + if (WARN_ON_ONCE(orig_nents <= 0)) return NULL; + sgt->orig_nents = orig_nents; + /* And map the entire SKB */ if (dma_map_sgtable(trans->dev, sgt, DMA_TO_DEVICE, 0) < 0) return NULL; @@ -1937,7 +1941,8 @@ static int iwl_fill_data_tbs_amsdu(struct iwl_trans *trans, struct sk_buff *skb, (3 + snap_ip_tcp_hdrlen + sizeof(struct ethhdr)) + iv_len; /* Our device supports 9 segments at most, it will fit in 1 page */ - sgt = iwl_pcie_prep_tso(trans, skb, out_meta, &start_hdr, hdr_room); + sgt = iwl_pcie_prep_tso(trans, skb, out_meta, &start_hdr, hdr_room, + snap_ip_tcp_hdrlen + hdr_len + iv_len); if (!sgt) return -ENOMEM; diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c index 61af1583356c..e4daac9c2440 100644 --- a/drivers/nvme/host/ioctl.c +++ b/drivers/nvme/host/ioctl.c @@ -120,19 +120,31 @@ static int nvme_map_user_request(struct request *req, u64 ubuffer, struct nvme_ns *ns = q->queuedata; struct block_device *bdev = ns ? ns->disk->part0 : NULL; bool supports_metadata = bdev && blk_get_integrity(bdev->bd_disk); + struct nvme_ctrl *ctrl = nvme_req(req)->ctrl; bool has_metadata = meta_buffer && meta_len; struct bio *bio = NULL; int ret; - if (has_metadata && !supports_metadata) - return -EINVAL; + if (!nvme_ctrl_sgl_supported(ctrl)) + dev_warn_once(ctrl->device, "using unchecked data buffer\n"); + if (has_metadata) { + if (!supports_metadata) { + ret = -EINVAL; + goto out; + } + if (!nvme_ctrl_meta_sgl_supported(ctrl)) + dev_warn_once(ctrl->device, + "using unchecked metadata buffer\n"); + } if (ioucmd && (ioucmd->flags & IORING_URING_CMD_FIXED)) { struct iov_iter iter; /* fixedbufs is only for non-vectored io */ - if (WARN_ON_ONCE(flags & NVME_IOCTL_VEC)) - return -EINVAL; + if (WARN_ON_ONCE(flags & NVME_IOCTL_VEC)) { + ret = -EINVAL; + goto out; + } ret = io_uring_cmd_import_fixed(ubuffer, bufflen, rq_data_dir(req), &iter, ioucmd); if (ret < 0) diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 61bba5513de0..dcdce7d12e44 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -1130,6 +1130,13 @@ static inline bool nvme_ctrl_sgl_supported(struct nvme_ctrl *ctrl) return ctrl->sgls & ((1 << 0) | (1 << 1)); } +static inline bool nvme_ctrl_meta_sgl_supported(struct nvme_ctrl *ctrl) +{ + if (ctrl->ops->flags & NVME_F_FABRICS) + return true; + return ctrl->sgls & NVME_CTRL_SGLS_MSDS; +} + #ifdef CONFIG_NVME_HOST_AUTH int __init nvme_init_auth(void); void __exit nvme_exit_auth(void); diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index cc74682dc0d4..e1329d4974fd 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -43,6 +43,7 @@ */ #define NVME_MAX_KB_SZ 8192 #define NVME_MAX_SEGS 128 +#define NVME_MAX_META_SEGS 15 #define NVME_MAX_NR_ALLOCATIONS 5 static int use_threaded_interrupts; @@ -143,6 +144,7 @@ struct nvme_dev { bool hmb; mempool_t *iod_mempool; + mempool_t *iod_meta_mempool; /* shadow doorbell buffer support: */ __le32 *dbbuf_dbs; @@ -238,6 +240,8 @@ struct nvme_iod { dma_addr_t first_dma; dma_addr_t meta_dma; struct sg_table sgt; + struct sg_table meta_sgt; + union nvme_descriptor meta_list; union nvme_descriptor list[NVME_MAX_NR_ALLOCATIONS]; }; @@ -505,6 +509,15 @@ static void nvme_commit_rqs(struct blk_mq_hw_ctx *hctx) spin_unlock(&nvmeq->sq_lock); } +static inline bool nvme_pci_metadata_use_sgls(struct nvme_dev *dev, + struct request *req) +{ + if (!nvme_ctrl_meta_sgl_supported(&dev->ctrl)) + return false; + return req->nr_integrity_segments > 1 || + nvme_req(req)->flags & NVME_REQ_USERCMD; +} + static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req, int nseg) { @@ -517,8 +530,10 @@ static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req, return false; if (!nvmeq->qid) return false; + if (nvme_pci_metadata_use_sgls(dev, req)) + return true; if (!sgl_threshold || avg_seg_size < sgl_threshold) - return false; + return nvme_req(req)->flags & NVME_REQ_USERCMD; return true; } @@ -779,7 +794,8 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req, struct bio_vec bv = req_bvec(req); if (!is_pci_p2pdma_page(bv.bv_page)) { - if ((bv.bv_offset & (NVME_CTRL_PAGE_SIZE - 1)) + + if (!nvme_pci_metadata_use_sgls(dev, req) && + (bv.bv_offset & (NVME_CTRL_PAGE_SIZE - 1)) + bv.bv_len <= NVME_CTRL_PAGE_SIZE * 2) return nvme_setup_prp_simple(dev, req, &cmnd->rw, &bv); @@ -823,11 +839,69 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req, return ret; } -static blk_status_t nvme_map_metadata(struct nvme_dev *dev, struct request *req, - struct nvme_command *cmnd) +static blk_status_t nvme_pci_setup_meta_sgls(struct nvme_dev *dev, + struct request *req) +{ + struct nvme_iod *iod = blk_mq_rq_to_pdu(req); + struct nvme_rw_command *cmnd = &iod->cmd.rw; + struct nvme_sgl_desc *sg_list; + struct scatterlist *sgl, *sg; + unsigned int entries; + dma_addr_t sgl_dma; + int rc, i; + + iod->meta_sgt.sgl = mempool_alloc(dev->iod_meta_mempool, GFP_ATOMIC); + if (!iod->meta_sgt.sgl) + return BLK_STS_RESOURCE; + + sg_init_table(iod->meta_sgt.sgl, req->nr_integrity_segments); + iod->meta_sgt.orig_nents = blk_rq_map_integrity_sg(req, + iod->meta_sgt.sgl); + if (!iod->meta_sgt.orig_nents) + goto out_free_sg; + + rc = dma_map_sgtable(dev->dev, &iod->meta_sgt, rq_dma_dir(req), + DMA_ATTR_NO_WARN); + if (rc) + goto out_free_sg; + + sg_list = dma_pool_alloc(dev->prp_small_pool, GFP_ATOMIC, &sgl_dma); + if (!sg_list) + goto out_unmap_sg; + + entries = iod->meta_sgt.nents; + iod->meta_list.sg_list = sg_list; + iod->meta_dma = sgl_dma; + + cmnd->flags = NVME_CMD_SGL_METASEG; + cmnd->metadata = cpu_to_le64(sgl_dma); + + sgl = iod->meta_sgt.sgl; + if (entries == 1) { + nvme_pci_sgl_set_data(sg_list, sgl); + return BLK_STS_OK; + } + + sgl_dma += sizeof(*sg_list); + nvme_pci_sgl_set_seg(sg_list, sgl_dma, entries); + for_each_sg(sgl, sg, entries, i) + nvme_pci_sgl_set_data(&sg_list[i + 1], sg); + + return BLK_STS_OK; + +out_unmap_sg: + dma_unmap_sgtable(dev->dev, &iod->meta_sgt, rq_dma_dir(req), 0); +out_free_sg: + mempool_free(iod->meta_sgt.sgl, dev->iod_meta_mempool); + return BLK_STS_RESOURCE; +} + +static blk_status_t nvme_pci_setup_meta_mptr(struct nvme_dev *dev, + struct request *req) { struct nvme_iod *iod = blk_mq_rq_to_pdu(req); struct bio_vec bv = rq_integrity_vec(req); + struct nvme_command *cmnd = &iod->cmd; iod->meta_dma = dma_map_bvec(dev->dev, &bv, rq_dma_dir(req), 0); if (dma_mapping_error(dev->dev, iod->meta_dma)) @@ -836,6 +910,13 @@ static blk_status_t nvme_map_metadata(struct nvme_dev *dev, struct request *req, return BLK_STS_OK; } +static blk_status_t nvme_map_metadata(struct nvme_dev *dev, struct request *req) +{ + if (nvme_pci_metadata_use_sgls(dev, req)) + return nvme_pci_setup_meta_sgls(dev, req); + return nvme_pci_setup_meta_mptr(dev, req); +} + static blk_status_t nvme_prep_rq(struct nvme_dev *dev, struct request *req) { struct nvme_iod *iod = blk_mq_rq_to_pdu(req); @@ -844,6 +925,7 @@ static blk_status_t nvme_prep_rq(struct nvme_dev *dev, struct request *req) iod->aborted = false; iod->nr_allocations = -1; iod->sgt.nents = 0; + iod->meta_sgt.nents = 0; ret = nvme_setup_cmd(req->q->queuedata, req); if (ret) @@ -856,7 +938,7 @@ static blk_status_t nvme_prep_rq(struct nvme_dev *dev, struct request *req) } if (blk_integrity_rq(req)) { - ret = nvme_map_metadata(dev, req, &iod->cmd); + ret = nvme_map_metadata(dev, req); if (ret) goto out_unmap_data; } @@ -955,17 +1037,31 @@ static void nvme_queue_rqs(struct request **rqlist) *rqlist = requeue_list; } +static __always_inline void nvme_unmap_metadata(struct nvme_dev *dev, + struct request *req) +{ + struct nvme_iod *iod = blk_mq_rq_to_pdu(req); + + if (!iod->meta_sgt.nents) { + dma_unmap_page(dev->dev, iod->meta_dma, + rq_integrity_vec(req).bv_len, + rq_dma_dir(req)); + return; + } + + dma_pool_free(dev->prp_small_pool, iod->meta_list.sg_list, + iod->meta_dma); + dma_unmap_sgtable(dev->dev, &iod->meta_sgt, rq_dma_dir(req), 0); + mempool_free(iod->meta_sgt.sgl, dev->iod_meta_mempool); +} + static __always_inline void nvme_pci_unmap_rq(struct request *req) { struct nvme_queue *nvmeq = req->mq_hctx->driver_data; struct nvme_dev *dev = nvmeq->dev; - if (blk_integrity_rq(req)) { - struct nvme_iod *iod = blk_mq_rq_to_pdu(req); - - dma_unmap_page(dev->dev, iod->meta_dma, - rq_integrity_vec(req).bv_len, rq_dma_dir(req)); - } + if (blk_integrity_rq(req)) + nvme_unmap_metadata(dev, req); if (blk_rq_nr_phys_segments(req)) nvme_unmap_data(dev, req); @@ -2719,6 +2815,7 @@ static void nvme_release_prp_pools(struct nvme_dev *dev) static int nvme_pci_alloc_iod_mempool(struct nvme_dev *dev) { + size_t meta_size = sizeof(struct scatterlist) * (NVME_MAX_META_SEGS + 1); size_t alloc_size = sizeof(struct scatterlist) * NVME_MAX_SEGS; dev->iod_mempool = mempool_create_node(1, @@ -2727,7 +2824,18 @@ static int nvme_pci_alloc_iod_mempool(struct nvme_dev *dev) dev_to_node(dev->dev)); if (!dev->iod_mempool) return -ENOMEM; + + dev->iod_meta_mempool = mempool_create_node(1, + mempool_kmalloc, mempool_kfree, + (void *)meta_size, GFP_KERNEL, + dev_to_node(dev->dev)); + if (!dev->iod_meta_mempool) + goto free; + return 0; +free: + mempool_destroy(dev->iod_mempool); + return -ENOMEM; } static void nvme_free_tagset(struct nvme_dev *dev) @@ -2792,6 +2900,11 @@ static void nvme_reset_work(struct work_struct *work) if (result) goto out; + if (nvme_ctrl_meta_sgl_supported(&dev->ctrl)) + dev->ctrl.max_integrity_segments = NVME_MAX_META_SEGS; + else + dev->ctrl.max_integrity_segments = 1; + nvme_dbbuf_dma_alloc(dev); result = nvme_setup_host_mem(dev); @@ -3061,11 +3174,6 @@ static struct nvme_dev *nvme_pci_alloc_dev(struct pci_dev *pdev, dev->ctrl.max_hw_sectors = min_t(u32, NVME_MAX_KB_SZ << 1, dma_opt_mapping_size(&pdev->dev) >> 9); dev->ctrl.max_segments = NVME_MAX_SEGS; - - /* - * There is no support for SGLs for metadata (yet), so we are limited to - * a single integrity segment for the separate metadata pointer. - */ dev->ctrl.max_integrity_segments = 1; return dev; @@ -3128,6 +3236,11 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (result) goto out_disable; + if (nvme_ctrl_meta_sgl_supported(&dev->ctrl)) + dev->ctrl.max_integrity_segments = NVME_MAX_META_SEGS; + else + dev->ctrl.max_integrity_segments = 1; + nvme_dbbuf_dma_alloc(dev); result = nvme_setup_host_mem(dev); @@ -3170,6 +3283,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) nvme_free_queues(dev, 0); out_release_iod_mempool: mempool_destroy(dev->iod_mempool); + mempool_destroy(dev->iod_meta_mempool); out_release_prp_pools: nvme_release_prp_pools(dev); out_dev_unmap: @@ -3235,6 +3349,7 @@ static void nvme_remove(struct pci_dev *pdev) nvme_dbbuf_dma_free(dev); nvme_free_queues(dev, 0); mempool_destroy(dev->iod_mempool); + mempool_destroy(dev->iod_meta_mempool); nvme_release_prp_pools(dev); nvme_dev_unmap(dev); nvme_uninit_ctrl(&dev->ctrl); diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index 840ae475074d..eeb05b7bc0fd 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -217,6 +217,19 @@ static inline int nvme_tcp_queue_id(struct nvme_tcp_queue *queue) return queue - queue->ctrl->queues; } +static inline bool nvme_tcp_recv_pdu_supported(enum nvme_tcp_pdu_type type) +{ + switch (type) { + case nvme_tcp_c2h_term: + case nvme_tcp_c2h_data: + case nvme_tcp_r2t: + case nvme_tcp_rsp: + return true; + default: + return false; + } +} + /* * Check if the queue is TLS encrypted */ @@ -763,6 +776,40 @@ static int nvme_tcp_handle_r2t(struct nvme_tcp_queue *queue, return 0; } +static void nvme_tcp_handle_c2h_term(struct nvme_tcp_queue *queue, + struct nvme_tcp_term_pdu *pdu) +{ + u16 fes; + const char *msg; + u32 plen = le32_to_cpu(pdu->hdr.plen); + + static const char * const msg_table[] = { + [NVME_TCP_FES_INVALID_PDU_HDR] = "Invalid PDU Header Field", + [NVME_TCP_FES_PDU_SEQ_ERR] = "PDU Sequence Error", + [NVME_TCP_FES_HDR_DIGEST_ERR] = "Header Digest Error", + [NVME_TCP_FES_DATA_OUT_OF_RANGE] = "Data Transfer Out Of Range", + [NVME_TCP_FES_DATA_LIMIT_EXCEEDED] = "Data Transfer Limit Exceeded", + [NVME_TCP_FES_UNSUPPORTED_PARAM] = "Unsupported Parameter", + }; + + if (plen < NVME_TCP_MIN_C2HTERM_PLEN || + plen > NVME_TCP_MAX_C2HTERM_PLEN) { + dev_err(queue->ctrl->ctrl.device, + "Received a malformed C2HTermReq PDU (plen = %u)\n", + plen); + return; + } + + fes = le16_to_cpu(pdu->fes); + if (fes && fes < ARRAY_SIZE(msg_table)) + msg = msg_table[fes]; + else + msg = "Unknown"; + + dev_err(queue->ctrl->ctrl.device, + "Received C2HTermReq (FES = %s)\n", msg); +} + static int nvme_tcp_recv_pdu(struct nvme_tcp_queue *queue, struct sk_buff *skb, unsigned int *offset, size_t *len) { @@ -784,6 +831,25 @@ static int nvme_tcp_recv_pdu(struct nvme_tcp_queue *queue, struct sk_buff *skb, return 0; hdr = queue->pdu; + if (unlikely(hdr->hlen != sizeof(struct nvme_tcp_rsp_pdu))) { + if (!nvme_tcp_recv_pdu_supported(hdr->type)) + goto unsupported_pdu; + + dev_err(queue->ctrl->ctrl.device, + "pdu type %d has unexpected header length (%d)\n", + hdr->type, hdr->hlen); + return -EPROTO; + } + + if (unlikely(hdr->type == nvme_tcp_c2h_term)) { + /* + * C2HTermReq never includes Header or Data digests. + * Skip the checks. + */ + nvme_tcp_handle_c2h_term(queue, (void *)queue->pdu); + return -EINVAL; + } + if (queue->hdr_digest) { ret = nvme_tcp_verify_hdgst(queue, queue->pdu, hdr->hlen); if (unlikely(ret)) @@ -807,10 +873,13 @@ static int nvme_tcp_recv_pdu(struct nvme_tcp_queue *queue, struct sk_buff *skb, nvme_tcp_init_recv_ctx(queue); return nvme_tcp_handle_r2t(queue, (void *)queue->pdu); default: - dev_err(queue->ctrl->ctrl.device, - "unsupported pdu type (%d)\n", hdr->type); - return -EINVAL; + goto unsupported_pdu; } + +unsupported_pdu: + dev_err(queue->ctrl->ctrl.device, + "unsupported pdu type (%d)\n", hdr->type); + return -EINVAL; } static inline void nvme_tcp_end_request(struct request *rq, u16 status) @@ -1452,11 +1521,11 @@ static int nvme_tcp_init_connection(struct nvme_tcp_queue *queue) msg.msg_flags = MSG_WAITALL; ret = kernel_recvmsg(queue->sock, &msg, &iov, 1, iov.iov_len, msg.msg_flags); - if (ret < sizeof(*icresp)) { + if (ret >= 0 && ret < sizeof(*icresp)) + ret = -ECONNRESET; + if (ret < 0) { pr_warn("queue %d: failed to receive icresp, error %d\n", nvme_tcp_queue_id(queue), ret); - if (ret >= 0) - ret = -ECONNRESET; goto free_icresp; } ret = -ENOTCONN; diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index 7c51c2a8c109..4f9cac8a5abe 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -571,10 +571,16 @@ static void nvmet_tcp_queue_response(struct nvmet_req *req) struct nvmet_tcp_cmd *cmd = container_of(req, struct nvmet_tcp_cmd, req); struct nvmet_tcp_queue *queue = cmd->queue; + enum nvmet_tcp_recv_state queue_state; + struct nvmet_tcp_cmd *queue_cmd; struct nvme_sgl_desc *sgl; u32 len; - if (unlikely(cmd == queue->cmd)) { + /* Pairs with store_release in nvmet_prepare_receive_pdu() */ + queue_state = smp_load_acquire(&queue->rcv_state); + queue_cmd = READ_ONCE(queue->cmd); + + if (unlikely(cmd == queue_cmd)) { sgl = &cmd->req.cmd->common.dptr.sgl; len = le32_to_cpu(sgl->length); @@ -583,7 +589,7 @@ static void nvmet_tcp_queue_response(struct nvmet_req *req) * Avoid using helpers, this might happen before * nvmet_req_init is completed. */ - if (queue->rcv_state == NVMET_TCP_RECV_PDU && + if (queue_state == NVMET_TCP_RECV_PDU && len && len <= cmd->req.port->inline_data_size && nvme_is_write(cmd->req.cmd)) return; @@ -847,8 +853,9 @@ static void nvmet_prepare_receive_pdu(struct nvmet_tcp_queue *queue) { queue->offset = 0; queue->left = sizeof(struct nvme_tcp_hdr); - queue->cmd = NULL; - queue->rcv_state = NVMET_TCP_RECV_PDU; + WRITE_ONCE(queue->cmd, NULL); + /* Ensure rcv_state is visible only after queue->cmd is set */ + smp_store_release(&queue->rcv_state, NVMET_TCP_RECV_PDU); } static void nvmet_tcp_free_crypto(struct nvmet_tcp_queue *queue) diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index e45d6d3a8dc6..45445a1600a9 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -360,12 +360,12 @@ static int __init __reserved_mem_alloc_size(unsigned long node, const char *unam prop = of_get_flat_dt_prop(node, "alignment", &len); if (prop) { - if (len != dt_root_size_cells * sizeof(__be32)) { + if (len != dt_root_addr_cells * sizeof(__be32)) { pr_err("invalid alignment property in '%s' node.\n", uname); return -EINVAL; } - align = dt_mem_next_cell(dt_root_size_cells, &prop); + align = dt_mem_next_cell(dt_root_addr_cells, &prop); } nomap = of_get_flat_dt_prop(node, "no-map", NULL) != NULL; diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 2cfb2ac3f465..84dcd7da7319 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -9958,6 +9958,7 @@ static const struct tpacpi_quirk battery_quirk_table[] __initconst = { * Individual addressing is broken on models that expose the * primary battery as BAT1. */ + TPACPI_Q_LNV('G', '8', true), /* ThinkPad X131e */ TPACPI_Q_LNV('8', 'F', true), /* Thinkpad X120e */ TPACPI_Q_LNV('J', '7', true), /* B5400 */ TPACPI_Q_LNV('J', 'I', true), /* Thinkpad 11e */ diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c index 27afbb9d544b..cbf531d0ba68 100644 --- a/drivers/rapidio/devices/rio_mport_cdev.c +++ b/drivers/rapidio/devices/rio_mport_cdev.c @@ -1742,7 +1742,8 @@ static int rio_mport_add_riodev(struct mport_cdev_priv *priv, err = rio_add_net(net); if (err) { rmcd_debug(RDEV, "failed to register net, err=%d", err); - kfree(net); + put_device(&net->dev); + mport->net = NULL; goto cleanup; } } diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c index fdcf742b2adb..c12941f71e2c 100644 --- a/drivers/rapidio/rio-scan.c +++ b/drivers/rapidio/rio-scan.c @@ -871,7 +871,10 @@ static struct rio_net *rio_scan_alloc_net(struct rio_mport *mport, dev_set_name(&net->dev, "rnet_%d", net->id); net->dev.parent = &mport->dev; net->dev.release = rio_scan_release_dev; - rio_add_net(net); + if (rio_add_net(net)) { + put_device(&net->dev); + net = NULL; + } } return net; diff --git a/drivers/slimbus/messaging.c b/drivers/slimbus/messaging.c index 242570a5e565..455c1fd1490f 100644 --- a/drivers/slimbus/messaging.c +++ b/drivers/slimbus/messaging.c @@ -148,8 +148,9 @@ int slim_do_transfer(struct slim_controller *ctrl, struct slim_msg_txn *txn) } ret = ctrl->xfer_msg(ctrl, txn); - - if (!ret && need_tid && !txn->msg->comp) { + if (ret == -ETIMEDOUT) { + slim_free_txn_tid(ctrl, txn); + } else if (!ret && need_tid && !txn->msg->comp) { unsigned long ms = txn->rl + HZ; time_left = wait_for_completion_timeout(txn->comp, diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 0dd85d2635b9..47d06af33747 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -1131,7 +1131,10 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance, struct cxacru_data *instance; struct usb_device *usb_dev = interface_to_usbdev(intf); struct usb_host_endpoint *cmd_ep = usb_dev->ep_in[CXACRU_EP_CMD]; - struct usb_endpoint_descriptor *in, *out; + static const u8 ep_addrs[] = { + CXACRU_EP_CMD + USB_DIR_IN, + CXACRU_EP_CMD + USB_DIR_OUT, + 0}; int ret; /* instance init */ @@ -1179,13 +1182,11 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance, } if (usb_endpoint_xfer_int(&cmd_ep->desc)) - ret = usb_find_common_endpoints(intf->cur_altsetting, - NULL, NULL, &in, &out); + ret = usb_check_int_endpoints(intf, ep_addrs); else - ret = usb_find_common_endpoints(intf->cur_altsetting, - &in, &out, NULL, NULL); + ret = usb_check_bulk_endpoints(intf, ep_addrs); - if (ret) { + if (!ret) { usb_err(usbatm_instance, "cxacru_bind: interface has incorrect endpoints\n"); ret = -ENODEV; goto fail; diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 906daf423cb0..145787c424e0 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -6065,6 +6065,36 @@ void usb_hub_cleanup(void) usb_deregister(&hub_driver); } /* usb_hub_cleanup() */ +/** + * hub_hc_release_resources - clear resources used by host controller + * @udev: pointer to device being released + * + * Context: task context, might sleep + * + * Function releases the host controller resources in correct order before + * making any operation on resuming usb device. The host controller resources + * allocated for devices in tree should be released starting from the last + * usb device in tree toward the root hub. This function is used only during + * resuming device when usb device require reinitialization – that is, when + * flag udev->reset_resume is set. + * + * This call is synchronous, and may not be used in an interrupt context. + */ +static void hub_hc_release_resources(struct usb_device *udev) +{ + struct usb_hub *hub = usb_hub_to_struct_hub(udev); + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + int i; + + /* Release up resources for all children before this device */ + for (i = 0; i < udev->maxchild; i++) + if (hub->ports[i]->child) + hub_hc_release_resources(hub->ports[i]->child); + + if (hcd->driver->reset_device) + hcd->driver->reset_device(hcd, udev); +} + /** * usb_reset_and_verify_device - perform a USB port reset to reinitialize a device * @udev: device to reset (not in SUSPENDED or NOTATTACHED state) @@ -6129,6 +6159,9 @@ static int usb_reset_and_verify_device(struct usb_device *udev) bos = udev->bos; udev->bos = NULL; + if (udev->reset_resume) + hub_hc_release_resources(udev); + mutex_lock(hcd->address0_mutex); for (i = 0; i < PORT_INIT_TRIES; ++i) { diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 027479179f09..6926bd639ec6 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -341,6 +341,10 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x0638, 0x0a13), .driver_info = USB_QUIRK_STRING_FETCH_255 }, + /* Prolific Single-LUN Mass Storage Card Reader */ + { USB_DEVICE(0x067b, 0x2731), .driver_info = USB_QUIRK_DELAY_INIT | + USB_QUIRK_NO_LPM }, + /* Saitek Cyborg Gold Joystick */ { USB_DEVICE(0x06a3, 0x0006), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 244e3e04e1ad..7820d6815bed 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -131,11 +131,24 @@ void dwc3_enable_susphy(struct dwc3 *dwc, bool enable) } } -void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode) +void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode, bool ignore_susphy) { + unsigned int hw_mode; u32 reg; reg = dwc3_readl(dwc->regs, DWC3_GCTL); + + /* + * For DRD controllers, GUSB3PIPECTL.SUSPENDENABLE and + * GUSB2PHYCFG.SUSPHY should be cleared during mode switching, + * and they can be set after core initialization. + */ + hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0); + if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD && !ignore_susphy) { + if (DWC3_GCTL_PRTCAP(reg) != mode) + dwc3_enable_susphy(dwc, false); + } + reg &= ~(DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG)); reg |= DWC3_GCTL_PRTCAPDIR(mode); dwc3_writel(dwc->regs, DWC3_GCTL, reg); @@ -216,7 +229,7 @@ static void __dwc3_set_mode(struct work_struct *work) spin_lock_irqsave(&dwc->lock, flags); - dwc3_set_prtcap(dwc, desired_dr_role); + dwc3_set_prtcap(dwc, desired_dr_role, false); spin_unlock_irqrestore(&dwc->lock, flags); @@ -658,16 +671,7 @@ static int dwc3_ss_phy_setup(struct dwc3 *dwc, int index) */ reg &= ~DWC3_GUSB3PIPECTL_UX_EXIT_PX; - /* - * Above DWC_usb3.0 1.94a, it is recommended to set - * DWC3_GUSB3PIPECTL_SUSPHY to '0' during coreConsultant configuration. - * So default value will be '0' when the core is reset. Application - * needs to set it to '1' after the core initialization is completed. - * - * Similarly for DRD controllers, GUSB3PIPECTL.SUSPENDENABLE must be - * cleared after power-on reset, and it can be set after core - * initialization. - */ + /* Ensure the GUSB3PIPECTL.SUSPENDENABLE is cleared prior to phy init. */ reg &= ~DWC3_GUSB3PIPECTL_SUSPHY; if (dwc->u2ss_inp3_quirk) @@ -747,15 +751,7 @@ static int dwc3_hs_phy_setup(struct dwc3 *dwc, int index) break; } - /* - * Above DWC_usb3.0 1.94a, it is recommended to set - * DWC3_GUSB2PHYCFG_SUSPHY to '0' during coreConsultant configuration. - * So default value will be '0' when the core is reset. Application - * needs to set it to '1' after the core initialization is completed. - * - * Similarly for DRD controllers, GUSB2PHYCFG.SUSPHY must be cleared - * after power-on reset, and it can be set after core initialization. - */ + /* Ensure the GUSB2PHYCFG.SUSPHY is cleared prior to phy init. */ reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; if (dwc->dis_enblslpm_quirk) @@ -830,6 +826,25 @@ static int dwc3_phy_init(struct dwc3 *dwc) goto err_exit_usb3_phy; } + /* + * Above DWC_usb3.0 1.94a, it is recommended to set + * DWC3_GUSB3PIPECTL_SUSPHY and DWC3_GUSB2PHYCFG_SUSPHY to '0' during + * coreConsultant configuration. So default value will be '0' when the + * core is reset. Application needs to set it to '1' after the core + * initialization is completed. + * + * Certain phy requires to be in P0 power state during initialization. + * Make sure GUSB3PIPECTL.SUSPENDENABLE and GUSB2PHYCFG.SUSPHY are clear + * prior to phy init to maintain in the P0 state. + * + * After phy initialization, some phy operations can only be executed + * while in lower P states. Ensure GUSB3PIPECTL.SUSPENDENABLE and + * GUSB2PHYCFG.SUSPHY are set soon after initialization to avoid + * blocking phy ops. + */ + if (!DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) + dwc3_enable_susphy(dwc, true); + return 0; err_exit_usb3_phy: @@ -1564,7 +1579,7 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) switch (dwc->dr_mode) { case USB_DR_MODE_PERIPHERAL: - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE, false); if (dwc->usb2_phy) otg_set_vbus(dwc->usb2_phy->otg, false); @@ -1576,7 +1591,7 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) return dev_err_probe(dev, ret, "failed to initialize gadget\n"); break; case USB_DR_MODE_HOST: - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST, false); if (dwc->usb2_phy) otg_set_vbus(dwc->usb2_phy->otg, true); @@ -1621,7 +1636,7 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc) } /* de-assert DRVVBUS for HOST and OTG mode */ - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE, true); } static void dwc3_get_software_properties(struct dwc3 *dwc) @@ -1811,8 +1826,6 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->tx_thr_num_pkt_prd = tx_thr_num_pkt_prd; dwc->tx_max_burst_prd = tx_max_burst_prd; - dwc->imod_interval = 0; - dwc->tx_fifo_resize_max_num = tx_fifo_resize_max_num; } @@ -1830,21 +1843,19 @@ static void dwc3_check_params(struct dwc3 *dwc) unsigned int hwparam_gen = DWC3_GHWPARAMS3_SSPHY_IFC(dwc->hwparams.hwparams3); - /* Check for proper value of imod_interval */ - if (dwc->imod_interval && !dwc3_has_imod(dwc)) { - dev_warn(dwc->dev, "Interrupt moderation not supported\n"); - dwc->imod_interval = 0; - } - /* + * Enable IMOD for all supporting controllers. + * + * Particularly, DWC_usb3 v3.00a must enable this feature for + * the following reason: + * * Workaround for STAR 9000961433 which affects only version * 3.00a of the DWC_usb3 core. This prevents the controller * interrupt from being masked while handling events. IMOD * allows us to work around this issue. Enable it for the * affected version. */ - if (!dwc->imod_interval && - DWC3_VER_IS(DWC3, 300A)) + if (dwc3_has_imod((dwc))) dwc->imod_interval = 1; /* Check the maximum_speed parameter */ @@ -2433,7 +2444,7 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) if (ret) return ret; - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE, true); dwc3_gadget_resume(dwc); break; case DWC3_GCTL_PRTCAP_HOST: @@ -2441,7 +2452,7 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) ret = dwc3_core_init_for_resume(dwc); if (ret) return ret; - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST, true); break; } /* Restore GUSB2PHYCFG bits that were modified in suspend */ @@ -2470,7 +2481,7 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) if (ret) return ret; - dwc3_set_prtcap(dwc, dwc->current_dr_role); + dwc3_set_prtcap(dwc, dwc->current_dr_role, true); dwc3_otg_init(dwc); if (dwc->current_otg_role == DWC3_OTG_ROLE_HOST) { diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 0e91a227507f..f288d88cd105 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1562,7 +1562,7 @@ struct dwc3_gadget_ep_cmd_params { #define DWC3_HAS_OTG BIT(3) /* prototypes */ -void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode); +void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode, bool ignore_susphy); void dwc3_set_mode(struct dwc3 *dwc, u32 mode); u32 dwc3_core_fifo_space(struct dwc3_ep *dep, u8 type); diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c index d76ae676783c..7977860932b1 100644 --- a/drivers/usb/dwc3/drd.c +++ b/drivers/usb/dwc3/drd.c @@ -173,7 +173,7 @@ void dwc3_otg_init(struct dwc3 *dwc) * block "Initialize GCTL for OTG operation". */ /* GCTL.PrtCapDir=2'b11 */ - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG, true); /* GUSB2PHYCFG0.SusPHY=0 */ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; @@ -556,7 +556,7 @@ int dwc3_drd_init(struct dwc3 *dwc) dwc3_drd_update(dwc); } else { - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG, true); /* use OTG block to get ID event */ irq = dwc3_otg_get_irq(dwc); diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 8c80bb4a467b..309a871453bf 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -4507,14 +4507,18 @@ static irqreturn_t dwc3_process_event_buf(struct dwc3_event_buffer *evt) dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(0), DWC3_GEVNTSIZ_SIZE(evt->length)); + evt->flags &= ~DWC3_EVENT_PENDING; + /* + * Add an explicit write memory barrier to make sure that the update of + * clearing DWC3_EVENT_PENDING is observed in dwc3_check_event_buf() + */ + wmb(); + if (dwc->imod_interval) { dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), DWC3_GEVNTCOUNT_EHB); dwc3_writel(dwc->regs, DWC3_DEV_IMOD(0), dwc->imod_interval); } - /* Keep the clearing of DWC3_EVENT_PENDING at the end */ - evt->flags &= ~DWC3_EVENT_PENDING; - return ret; } diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index cec86c0c6369..8402a86176f4 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1050,10 +1050,11 @@ static int set_config(struct usb_composite_dev *cdev, else usb_gadget_set_remote_wakeup(gadget, 0); done: - if (power <= USB_SELF_POWER_VBUS_MAX_DRAW) - usb_gadget_set_selfpowered(gadget); - else + if (power > USB_SELF_POWER_VBUS_MAX_DRAW || + (c && !(c->bmAttributes & USB_CONFIG_ATT_SELFPOWER))) usb_gadget_clear_selfpowered(gadget); + else + usb_gadget_set_selfpowered(gadget); usb_gadget_vbus_draw(gadget, power); if (result >= 0 && cdev->delayed_status) @@ -2615,7 +2616,10 @@ void composite_suspend(struct usb_gadget *gadget) cdev->suspended = 1; - usb_gadget_set_selfpowered(gadget); + if (cdev->config && + cdev->config->bmAttributes & USB_CONFIG_ATT_SELFPOWER) + usb_gadget_set_selfpowered(gadget); + usb_gadget_vbus_draw(gadget, 2); } @@ -2649,8 +2653,11 @@ void composite_resume(struct usb_gadget *gadget) else maxpower = min(maxpower, 900U); - if (maxpower > USB_SELF_POWER_VBUS_MAX_DRAW) + if (maxpower > USB_SELF_POWER_VBUS_MAX_DRAW || + !(cdev->config->bmAttributes & USB_CONFIG_ATT_SELFPOWER)) usb_gadget_clear_selfpowered(gadget); + else + usb_gadget_set_selfpowered(gadget); usb_gadget_vbus_draw(gadget, maxpower); } else { diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c index 09e2838917e2..f58590bf5e02 100644 --- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -1052,8 +1052,8 @@ void gether_suspend(struct gether *link) * There is a transfer in progress. So we trigger a remote * wakeup to inform the host. */ - ether_wakeup_host(dev->port_usb); - return; + if (!ether_wakeup_host(dev->port_usb)) + return; } spin_lock_irqsave(&dev->lock, flags); link->is_suspend = true; diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 8d774f19271e..2fe3a92978fa 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -12,6 +12,7 @@ #include <linux/slab.h> #include <linux/unaligned.h> #include <linux/bitfield.h> +#include <linux/pci.h> #include "xhci.h" #include "xhci-trace.h" @@ -770,9 +771,16 @@ static int xhci_exit_test_mode(struct xhci_hcd *xhci) enum usb_link_tunnel_mode xhci_port_is_tunneled(struct xhci_hcd *xhci, struct xhci_port *port) { + struct usb_hcd *hcd; void __iomem *base; u32 offset; + /* Don't try and probe this capability for non-Intel hosts */ + hcd = xhci_to_hcd(xhci); + if (!dev_is_pci(hcd->self.controller) || + to_pci_dev(hcd->self.controller)->vendor != PCI_VENDOR_ID_INTEL) + return USB_LINK_UNKNOWN; + base = &xhci->cap_regs->hc_capbase; offset = xhci_find_next_ext_cap(base, 0, XHCI_EXT_CAPS_INTEL_SPR_SHADOW); diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index d2900197a49e..32c8693b438b 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2443,7 +2443,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) * and our use of dma addresses in the trb_address_map radix tree needs * TRB_SEGMENT_SIZE alignment, so we pick the greater alignment need. */ - if (xhci->quirks & XHCI_ZHAOXIN_TRB_FETCH) + if (xhci->quirks & XHCI_TRB_OVERFETCH) + /* Buggy HC prefetches beyond segment bounds - allocate dummy space at the end */ xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, TRB_SEGMENT_SIZE * 2, TRB_SEGMENT_SIZE * 2, xhci->page_size * 2); else diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index deb3c98c9bea..1b033c8ce188 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -28,8 +28,8 @@ #define SPARSE_CNTL_ENABLE 0xC12C /* Device for a quirk */ -#define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73 -#define PCI_DEVICE_ID_FRESCO_LOGIC_PDK 0x1000 +#define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73 +#define PCI_DEVICE_ID_FRESCO_LOGIC_PDK 0x1000 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1009 0x1009 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 0x1100 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1400 0x1400 @@ -38,8 +38,10 @@ #define PCI_DEVICE_ID_EJ168 0x7023 #define PCI_DEVICE_ID_EJ188 0x7052 -#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31 -#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 +#define PCI_DEVICE_ID_VIA_VL805 0x3483 + +#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31 +#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 #define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI 0x9cb1 #define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI 0x22b5 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI 0xa12f @@ -424,8 +426,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == 0x3432) xhci->quirks |= XHCI_BROKEN_STREAMS; - if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) + if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == PCI_DEVICE_ID_VIA_VL805) { xhci->quirks |= XHCI_LPM_SUPPORT; + xhci->quirks |= XHCI_TRB_OVERFETCH; + } if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI) { @@ -473,11 +477,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if (pdev->device == 0x9202) { xhci->quirks |= XHCI_RESET_ON_RESUME; - xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH; + xhci->quirks |= XHCI_TRB_OVERFETCH; } if (pdev->device == 0x9203) - xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH; + xhci->quirks |= XHCI_TRB_OVERFETCH; } if (pdev->vendor == PCI_DEVICE_ID_CADENCE && diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 673179047eb8..439767d242fa 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1621,7 +1621,7 @@ struct xhci_hcd { #define XHCI_EP_CTX_BROKEN_DCS BIT_ULL(42) #define XHCI_SUSPEND_RESUME_CLKS BIT_ULL(43) #define XHCI_RESET_TO_DEFAULT BIT_ULL(44) -#define XHCI_ZHAOXIN_TRB_FETCH BIT_ULL(45) +#define XHCI_TRB_OVERFETCH BIT_ULL(45) #define XHCI_ZHAOXIN_HOST BIT_ULL(46) #define XHCI_WRITE_64_HI_LO BIT_ULL(47) #define XHCI_CDNS_SCTX_QUIRK BIT_ULL(48) diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index edc43f169d49..7324de52d950 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -312,8 +312,10 @@ static int usbhsc_clk_get(struct device *dev, struct usbhs_priv *priv) priv->clks[1] = of_clk_get(dev_of_node(dev), 1); if (PTR_ERR(priv->clks[1]) == -ENOENT) priv->clks[1] = NULL; - else if (IS_ERR(priv->clks[1])) + else if (IS_ERR(priv->clks[1])) { + clk_put(priv->clks[0]); return PTR_ERR(priv->clks[1]); + } return 0; } @@ -779,6 +781,8 @@ static void usbhs_remove(struct platform_device *pdev) dev_dbg(&pdev->dev, "usb remove\n"); + flush_delayed_work(&priv->notify_hotplug_work); + /* power off */ if (!usbhs_get_dparam(priv, runtime_pwctrl)) usbhsc_power_ctrl(priv, 0); diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 105132ae87ac..e8e5723f5412 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -1094,7 +1094,7 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) goto usbhs_mod_gadget_probe_err_gpriv; } - gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED); + gpriv->transceiver = devm_usb_get_phy(dev, USB_PHY_TYPE_UNDEFINED); dev_info(dev, "%stransceiver found\n", !IS_ERR(gpriv->transceiver) ? "" : "no "); diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c index 64f6dd0dc660..88c50b984e8a 100644 --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c @@ -334,6 +334,11 @@ static int rt1711h_probe(struct i2c_client *client) { int ret; struct rt1711h_chip *chip; + const u16 alert_mask = TCPC_ALERT_TX_SUCCESS | TCPC_ALERT_TX_DISCARDED | + TCPC_ALERT_TX_FAILED | TCPC_ALERT_RX_HARD_RST | + TCPC_ALERT_RX_STATUS | TCPC_ALERT_POWER_STATUS | + TCPC_ALERT_CC_STATUS | TCPC_ALERT_RX_BUF_OVF | + TCPC_ALERT_FAULT; chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); if (!chip) @@ -382,6 +387,12 @@ static int rt1711h_probe(struct i2c_client *client) dev_name(chip->dev), chip); if (ret < 0) return ret; + + /* Enable alert interrupts */ + ret = rt1711h_write16(chip, TCPC_ALERT_MASK, alert_mask); + if (ret < 0) + return ret; + enable_irq_wake(client->irq); return 0; diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index 7a3f0f5af38f..3f2bc13efa48 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -25,7 +25,7 @@ * difficult to estimate the time it takes for the system to process the command * before it is actually passed to the PPM. */ -#define UCSI_TIMEOUT_MS 5000 +#define UCSI_TIMEOUT_MS 10000 /* * UCSI_SWAP_TIMEOUT_MS - Timeout for role swap requests @@ -1330,7 +1330,7 @@ static int ucsi_reset_ppm(struct ucsi *ucsi) mutex_lock(&ucsi->ppm_lock); - ret = ucsi->ops->read_cci(ucsi, &cci); + ret = ucsi->ops->poll_cci(ucsi, &cci); if (ret < 0) goto out; @@ -1348,7 +1348,7 @@ static int ucsi_reset_ppm(struct ucsi *ucsi) tmo = jiffies + msecs_to_jiffies(UCSI_TIMEOUT_MS); do { - ret = ucsi->ops->read_cci(ucsi, &cci); + ret = ucsi->ops->poll_cci(ucsi, &cci); if (ret < 0) goto out; if (cci & UCSI_CCI_COMMAND_COMPLETE) @@ -1377,7 +1377,7 @@ static int ucsi_reset_ppm(struct ucsi *ucsi) /* Give the PPM time to process a reset before reading CCI */ msleep(20); - ret = ucsi->ops->read_cci(ucsi, &cci); + ret = ucsi->ops->poll_cci(ucsi, &cci); if (ret) goto out; @@ -1809,11 +1809,11 @@ static int ucsi_init(struct ucsi *ucsi) err_unregister: for (con = connector; con->port; con++) { + if (con->wq) + destroy_workqueue(con->wq); ucsi_unregister_partner(con); ucsi_unregister_altmodes(con, UCSI_RECIPIENT_CON); ucsi_unregister_port_psy(con); - if (con->wq) - destroy_workqueue(con->wq); usb_power_delivery_unregister_capabilities(con->port_sink_caps); con->port_sink_caps = NULL; @@ -1913,8 +1913,8 @@ struct ucsi *ucsi_create(struct device *dev, const struct ucsi_operations *ops) struct ucsi *ucsi; if (!ops || - !ops->read_version || !ops->read_cci || !ops->read_message_in || - !ops->sync_control || !ops->async_control) + !ops->read_version || !ops->read_cci || !ops->poll_cci || + !ops->read_message_in || !ops->sync_control || !ops->async_control) return ERR_PTR(-EINVAL); ucsi = kzalloc(sizeof(*ucsi), GFP_KERNEL); @@ -1997,10 +1997,6 @@ void ucsi_unregister(struct ucsi *ucsi) for (i = 0; i < ucsi->cap.num_connectors; i++) { cancel_work_sync(&ucsi->connector[i].work); - ucsi_unregister_partner(&ucsi->connector[i]); - ucsi_unregister_altmodes(&ucsi->connector[i], - UCSI_RECIPIENT_CON); - ucsi_unregister_port_psy(&ucsi->connector[i]); if (ucsi->connector[i].wq) { struct ucsi_work *uwork; @@ -2016,6 +2012,11 @@ void ucsi_unregister(struct ucsi *ucsi) destroy_workqueue(ucsi->connector[i].wq); } + ucsi_unregister_partner(&ucsi->connector[i]); + ucsi_unregister_altmodes(&ucsi->connector[i], + UCSI_RECIPIENT_CON); + ucsi_unregister_port_psy(&ucsi->connector[i]); + usb_power_delivery_unregister_capabilities(ucsi->connector[i].port_sink_caps); ucsi->connector[i].port_sink_caps = NULL; usb_power_delivery_unregister_capabilities(ucsi->connector[i].port_source_caps); diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index 1cf5aad4c23a..a333006d3496 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -60,6 +60,7 @@ struct dentry; * struct ucsi_operations - UCSI I/O operations * @read_version: Read implemented UCSI version * @read_cci: Read CCI register + * @poll_cci: Read CCI register while polling with notifications disabled * @read_message_in: Read message data from UCSI * @sync_control: Blocking control operation * @async_control: Non-blocking control operation @@ -74,6 +75,7 @@ struct dentry; struct ucsi_operations { int (*read_version)(struct ucsi *ucsi, u16 *version); int (*read_cci)(struct ucsi *ucsi, u32 *cci); + int (*poll_cci)(struct ucsi *ucsi, u32 *cci); int (*read_message_in)(struct ucsi *ucsi, void *val, size_t val_len); int (*sync_control)(struct ucsi *ucsi, u64 command); int (*async_control)(struct ucsi *ucsi, u64 command); diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c index accf15ff1306..8de2961718cd 100644 --- a/drivers/usb/typec/ucsi/ucsi_acpi.c +++ b/drivers/usb/typec/ucsi/ucsi_acpi.c @@ -59,19 +59,24 @@ static int ucsi_acpi_read_version(struct ucsi *ucsi, u16 *version) static int ucsi_acpi_read_cci(struct ucsi *ucsi, u32 *cci) { struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); - int ret; - - if (UCSI_COMMAND(ua->cmd) == UCSI_PPM_RESET) { - ret = ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_READ); - if (ret) - return ret; - } memcpy(cci, ua->base + UCSI_CCI, sizeof(*cci)); return 0; } +static int ucsi_acpi_poll_cci(struct ucsi *ucsi, u32 *cci) +{ + struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); + int ret; + + ret = ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_READ); + if (ret) + return ret; + + return ucsi_acpi_read_cci(ucsi, cci); +} + static int ucsi_acpi_read_message_in(struct ucsi *ucsi, void *val, size_t val_len) { struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); @@ -94,6 +99,7 @@ static int ucsi_acpi_async_control(struct ucsi *ucsi, u64 command) static const struct ucsi_operations ucsi_acpi_ops = { .read_version = ucsi_acpi_read_version, .read_cci = ucsi_acpi_read_cci, + .poll_cci = ucsi_acpi_poll_cci, .read_message_in = ucsi_acpi_read_message_in, .sync_control = ucsi_sync_control_common, .async_control = ucsi_acpi_async_control @@ -145,6 +151,7 @@ static int ucsi_gram_sync_control(struct ucsi *ucsi, u64 command) static const struct ucsi_operations ucsi_gram_ops = { .read_version = ucsi_acpi_read_version, .read_cci = ucsi_acpi_read_cci, + .poll_cci = ucsi_acpi_poll_cci, .read_message_in = ucsi_gram_read_message_in, .sync_control = ucsi_gram_sync_control, .async_control = ucsi_acpi_async_control diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c index 740171f24ef9..4b1668733a4b 100644 --- a/drivers/usb/typec/ucsi/ucsi_ccg.c +++ b/drivers/usb/typec/ucsi/ucsi_ccg.c @@ -664,6 +664,7 @@ static int ucsi_ccg_sync_control(struct ucsi *ucsi, u64 command) static const struct ucsi_operations ucsi_ccg_ops = { .read_version = ucsi_ccg_read_version, .read_cci = ucsi_ccg_read_cci, + .poll_cci = ucsi_ccg_read_cci, .read_message_in = ucsi_ccg_read_message_in, .sync_control = ucsi_ccg_sync_control, .async_control = ucsi_ccg_async_control, diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c index 9b6cb76e6328..75c0e54c37fa 100644 --- a/drivers/usb/typec/ucsi/ucsi_glink.c +++ b/drivers/usb/typec/ucsi/ucsi_glink.c @@ -201,6 +201,7 @@ static void pmic_glink_ucsi_connector_status(struct ucsi_connector *con) static const struct ucsi_operations pmic_glink_ucsi_ops = { .read_version = pmic_glink_ucsi_read_version, .read_cci = pmic_glink_ucsi_read_cci, + .poll_cci = pmic_glink_ucsi_read_cci, .read_message_in = pmic_glink_ucsi_read_message_in, .sync_control = ucsi_sync_control_common, .async_control = pmic_glink_ucsi_async_control, diff --git a/drivers/usb/typec/ucsi/ucsi_stm32g0.c b/drivers/usb/typec/ucsi/ucsi_stm32g0.c index 6923fad31d79..57ef7d83a412 100644 --- a/drivers/usb/typec/ucsi/ucsi_stm32g0.c +++ b/drivers/usb/typec/ucsi/ucsi_stm32g0.c @@ -424,6 +424,7 @@ static irqreturn_t ucsi_stm32g0_irq_handler(int irq, void *data) static const struct ucsi_operations ucsi_stm32g0_ops = { .read_version = ucsi_stm32g0_read_version, .read_cci = ucsi_stm32g0_read_cci, + .poll_cci = ucsi_stm32g0_read_cci, .read_message_in = ucsi_stm32g0_read_message_in, .sync_control = ucsi_sync_control_common, .async_control = ucsi_stm32g0_async_control, diff --git a/drivers/usb/typec/ucsi/ucsi_yoga_c630.c b/drivers/usb/typec/ucsi/ucsi_yoga_c630.c index f3a5e24ea84d..40e5da4fd2a4 100644 --- a/drivers/usb/typec/ucsi/ucsi_yoga_c630.c +++ b/drivers/usb/typec/ucsi/ucsi_yoga_c630.c @@ -74,6 +74,7 @@ static int yoga_c630_ucsi_async_control(struct ucsi *ucsi, u64 command) const struct ucsi_operations yoga_c630_ucsi_ops = { .read_version = yoga_c630_ucsi_read_version, .read_cci = yoga_c630_ucsi_read_cci, + .poll_cci = yoga_c630_ucsi_read_cci, .read_message_in = yoga_c630_ucsi_read_message_in, .sync_control = ucsi_sync_control_common, .async_control = yoga_c630_ucsi_async_control, diff --git a/drivers/virt/acrn/hsm.c b/drivers/virt/acrn/hsm.c index c24036c4e51e..e4e196abdaac 100644 --- a/drivers/virt/acrn/hsm.c +++ b/drivers/virt/acrn/hsm.c @@ -49,7 +49,7 @@ static int pmcmd_ioctl(u64 cmd, void __user *uptr) switch (cmd & PMCMD_TYPE_MASK) { case ACRN_PMCMD_GET_PX_CNT: case ACRN_PMCMD_GET_CX_CNT: - pm_info = kmalloc(sizeof(u64), GFP_KERNEL); + pm_info = kzalloc(sizeof(u64), GFP_KERNEL); if (!pm_info) return -ENOMEM; @@ -64,7 +64,7 @@ static int pmcmd_ioctl(u64 cmd, void __user *uptr) kfree(pm_info); break; case ACRN_PMCMD_GET_PX_DATA: - px_data = kmalloc(sizeof(*px_data), GFP_KERNEL); + px_data = kzalloc(sizeof(*px_data), GFP_KERNEL); if (!px_data) return -ENOMEM; @@ -79,7 +79,7 @@ static int pmcmd_ioctl(u64 cmd, void __user *uptr) kfree(px_data); break; case ACRN_PMCMD_GET_CX_DATA: - cx_data = kmalloc(sizeof(*cx_data), GFP_KERNEL); + cx_data = kzalloc(sizeof(*cx_data), GFP_KERNEL); if (!cx_data) return -ENOMEM; diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 848cb2c3d9dd..78c4a3765002 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1200,7 +1200,7 @@ ssize_t btrfs_buffered_write(struct kiocb *iocb, struct iov_iter *i) ssize_t ret; bool only_release_metadata = false; bool force_page_uptodate = false; - loff_t old_isize = i_size_read(inode); + loff_t old_isize; unsigned int ilock_flags = 0; const bool nowait = (iocb->ki_flags & IOCB_NOWAIT); unsigned int bdp_flags = (nowait ? BDP_ASYNC : 0); @@ -1212,6 +1212,13 @@ ssize_t btrfs_buffered_write(struct kiocb *iocb, struct iov_iter *i) if (ret < 0) return ret; + /* + * We can only trust the isize with inode lock held, or it can race with + * other buffered writes and cause incorrect call of + * pagecache_isize_extended() to overwrite existing data. + */ + old_isize = i_size_read(inode); + ret = generic_write_checks(iocb, i); if (ret <= 0) goto out; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 395b8b880ce7..587ac07cd194 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -7094,6 +7094,7 @@ static int read_one_chunk(struct btrfs_key *key, struct extent_buffer *leaf, btrfs_err(fs_info, "failed to add chunk map, start=%llu len=%llu: %d", map->start, map->chunk_len, ret); + btrfs_free_chunk_map(map); } return ret; diff --git a/fs/coredump.c b/fs/coredump.c index 45737b43dda5..2b8c36c9660c 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -63,6 +63,7 @@ static void free_vma_snapshot(struct coredump_params *cprm); static int core_uses_pid; static unsigned int core_pipe_limit; +static unsigned int core_sort_vma; static char core_pattern[CORENAME_MAX_SIZE] = "core"; static int core_name_size = CORENAME_MAX_SIZE; unsigned int core_file_note_size_limit = CORE_FILE_NOTE_SIZE_DEFAULT; @@ -1025,6 +1026,15 @@ static struct ctl_table coredump_sysctls[] = { .extra1 = (unsigned int *)&core_file_note_size_min, .extra2 = (unsigned int *)&core_file_note_size_max, }, + { + .procname = "core_sort_vma", + .data = &core_sort_vma, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_douintvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, + }, }; static int __init init_fs_coredump_sysctls(void) @@ -1255,8 +1265,9 @@ static bool dump_vma_snapshot(struct coredump_params *cprm) cprm->vma_data_size += m->dump_size; } - sort(cprm->vma_meta, cprm->vma_count, sizeof(*cprm->vma_meta), - cmp_vma_size, NULL); + if (core_sort_vma) + sort(cprm->vma_meta, cprm->vma_count, sizeof(*cprm->vma_meta), + cmp_vma_size, NULL); return true; } diff --git a/fs/exfat/balloc.c b/fs/exfat/balloc.c index ce9be95c9172..9ff825f1502d 100644 --- a/fs/exfat/balloc.c +++ b/fs/exfat/balloc.c @@ -141,7 +141,7 @@ int exfat_set_bitmap(struct inode *inode, unsigned int clu, bool sync) return 0; } -void exfat_clear_bitmap(struct inode *inode, unsigned int clu, bool sync) +int exfat_clear_bitmap(struct inode *inode, unsigned int clu, bool sync) { int i, b; unsigned int ent_idx; @@ -150,13 +150,17 @@ void exfat_clear_bitmap(struct inode *inode, unsigned int clu, bool sync) struct exfat_mount_options *opts = &sbi->options; if (!is_valid_cluster(sbi, clu)) - return; + return -EIO; ent_idx = CLUSTER_TO_BITMAP_ENT(clu); i = BITMAP_OFFSET_SECTOR_INDEX(sb, ent_idx); b = BITMAP_OFFSET_BIT_IN_SECTOR(sb, ent_idx); + if (!test_bit_le(b, sbi->vol_amap[i]->b_data)) + return -EIO; + clear_bit_le(b, sbi->vol_amap[i]->b_data); + exfat_update_bh(sbi->vol_amap[i], sync); if (opts->discard) { @@ -171,6 +175,8 @@ void exfat_clear_bitmap(struct inode *inode, unsigned int clu, bool sync) opts->discard = 0; } } + + return 0; } /* diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h index 3cdc1de362a9..d2ba8e2d0c39 100644 --- a/fs/exfat/exfat_fs.h +++ b/fs/exfat/exfat_fs.h @@ -452,7 +452,7 @@ int exfat_count_num_clusters(struct super_block *sb, int exfat_load_bitmap(struct super_block *sb); void exfat_free_bitmap(struct exfat_sb_info *sbi); int exfat_set_bitmap(struct inode *inode, unsigned int clu, bool sync); -void exfat_clear_bitmap(struct inode *inode, unsigned int clu, bool sync); +int exfat_clear_bitmap(struct inode *inode, unsigned int clu, bool sync); unsigned int exfat_find_free_bitmap(struct super_block *sb, unsigned int clu); int exfat_count_used_clusters(struct super_block *sb, unsigned int *ret_count); int exfat_trim_fs(struct inode *inode, struct fstrim_range *range); diff --git a/fs/exfat/fatent.c b/fs/exfat/fatent.c index 9e5492ac409b..6f3651c6ca91 100644 --- a/fs/exfat/fatent.c +++ b/fs/exfat/fatent.c @@ -175,6 +175,7 @@ static int __exfat_free_cluster(struct inode *inode, struct exfat_chain *p_chain BITMAP_OFFSET_SECTOR_INDEX(sb, CLUSTER_TO_BITMAP_ENT(clu)); if (p_chain->flags == ALLOC_NO_FAT_CHAIN) { + int err; unsigned int last_cluster = p_chain->dir + p_chain->size - 1; do { bool sync = false; @@ -189,7 +190,9 @@ static int __exfat_free_cluster(struct inode *inode, struct exfat_chain *p_chain cur_cmap_i = next_cmap_i; } - exfat_clear_bitmap(inode, clu, (sync && IS_DIRSYNC(inode))); + err = exfat_clear_bitmap(inode, clu, (sync && IS_DIRSYNC(inode))); + if (err) + break; clu++; num_clusters++; } while (num_clusters < p_chain->size); @@ -210,12 +213,13 @@ static int __exfat_free_cluster(struct inode *inode, struct exfat_chain *p_chain cur_cmap_i = next_cmap_i; } - exfat_clear_bitmap(inode, clu, (sync && IS_DIRSYNC(inode))); + if (exfat_clear_bitmap(inode, clu, (sync && IS_DIRSYNC(inode)))) + break; clu = n_clu; num_clusters++; if (err) - goto dec_used_clus; + break; if (num_clusters >= sbi->num_clusters - EXFAT_FIRST_CLUSTER) { /* @@ -229,7 +233,6 @@ static int __exfat_free_cluster(struct inode *inode, struct exfat_chain *p_chain } while (clu != EXFAT_EOF_CLUSTER); } -dec_used_clus: sbi->used_clusters -= num_clusters; return 0; } diff --git a/fs/exfat/file.c b/fs/exfat/file.c index 05b51e721783..807349d8ea05 100644 --- a/fs/exfat/file.c +++ b/fs/exfat/file.c @@ -587,7 +587,7 @@ static ssize_t exfat_file_write_iter(struct kiocb *iocb, struct iov_iter *iter) valid_size = ei->valid_size; ret = generic_write_checks(iocb, iter); - if (ret < 0) + if (ret <= 0) goto unlock; if (iocb->ki_flags & IOCB_DIRECT) { diff --git a/fs/exfat/namei.c b/fs/exfat/namei.c index 337197ece599..e47a5ddfc79b 100644 --- a/fs/exfat/namei.c +++ b/fs/exfat/namei.c @@ -237,7 +237,7 @@ static int exfat_search_empty_slot(struct super_block *sb, dentry = 0; } - while (dentry + num_entries < total_entries && + while (dentry + num_entries <= total_entries && clu.dir != EXFAT_EOF_CLUSTER) { i = dentry & (dentries_per_clu - 1); diff --git a/fs/netfs/read_collect.c b/fs/netfs/read_collect.c index a44132c98653..3b9461f5e712 100644 --- a/fs/netfs/read_collect.c +++ b/fs/netfs/read_collect.c @@ -258,17 +258,18 @@ static bool netfs_consume_read_data(struct netfs_io_subrequest *subreq, bool was */ if (!subreq->consumed && !prev_donated && - !list_is_first(&subreq->rreq_link, &rreq->subrequests) && - subreq->start == prev->start + prev->len) { + !list_is_first(&subreq->rreq_link, &rreq->subrequests)) { prev = list_prev_entry(subreq, rreq_link); - WRITE_ONCE(prev->next_donated, prev->next_donated + subreq->len); - subreq->start += subreq->len; - subreq->len = 0; - subreq->transferred = 0; - trace_netfs_donate(rreq, subreq, prev, subreq->len, - netfs_trace_donate_to_prev); - trace_netfs_sreq(subreq, netfs_sreq_trace_donate_to_prev); - goto remove_subreq_locked; + if (subreq->start == prev->start + prev->len) { + WRITE_ONCE(prev->next_donated, prev->next_donated + subreq->len); + subreq->start += subreq->len; + subreq->len = 0; + subreq->transferred = 0; + trace_netfs_donate(rreq, subreq, prev, subreq->len, + netfs_trace_donate_to_prev); + trace_netfs_sreq(subreq, netfs_sreq_trace_donate_to_prev); + goto remove_subreq_locked; + } } /* If we can't donate down the chain, donate up the chain instead. */ diff --git a/fs/netfs/read_pgpriv2.c b/fs/netfs/read_pgpriv2.c index 54d5004fec18..e72f5e674834 100644 --- a/fs/netfs/read_pgpriv2.c +++ b/fs/netfs/read_pgpriv2.c @@ -181,16 +181,17 @@ void netfs_pgpriv2_write_to_the_cache(struct netfs_io_request *rreq) break; folioq_unmark3(folioq, slot); - if (!folioq->marks3) { + while (!folioq->marks3) { folioq = folioq->next; if (!folioq) - break; + goto end_of_queue; } slot = __ffs(folioq->marks3); folio = folioq_folio(folioq, slot); } +end_of_queue: netfs_issue_write(wreq, &wreq->io_streams[1]); smp_wmb(); /* Write lists before ALL_QUEUED. */ set_bit(NETFS_RREQ_ALL_QUEUED, &wreq->flags); diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 6800ee92d742..153d25d4b810 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -29,6 +29,7 @@ #include <linux/pagemap.h> #include <linux/gfp.h> #include <linux/swap.h> +#include <linux/compaction.h> #include <linux/uaccess.h> #include <linux/filelock.h> @@ -451,7 +452,7 @@ static bool nfs_release_folio(struct folio *folio, gfp_t gfp) /* If the private flag is set, then the folio is not freeable */ if (folio_test_private(folio)) { if ((current_gfp_context(gfp) & GFP_KERNEL) != GFP_KERNEL || - current_is_kswapd()) + current_is_kswapd() || current_is_kcompactd()) return false; if (nfs_wb_folio(folio->mapping->host, folio) < 0) return false; diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h index 05274121e46f..b630beb757a4 100644 --- a/fs/smb/client/cifsglob.h +++ b/fs/smb/client/cifsglob.h @@ -209,10 +209,8 @@ struct cifs_cred { struct cifs_open_info_data { bool adjust_tz; - union { - bool reparse_point; - bool symlink; - }; + bool reparse_point; + bool contains_posix_file_info; struct { /* ioctl response buffer */ struct { diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c index e11e67af760f..a3f0835e12be 100644 --- a/fs/smb/client/inode.c +++ b/fs/smb/client/inode.c @@ -968,7 +968,7 @@ cifs_get_file_info(struct file *filp) /* TODO: add support to query reparse tag */ data.adjust_tz = false; if (data.symlink_target) { - data.symlink = true; + data.reparse_point = true; data.reparse.tag = IO_REPARSE_TAG_SYMLINK; } path = build_path_from_dentry(dentry, page); diff --git a/fs/smb/client/reparse.h b/fs/smb/client/reparse.h index ff05b0e75c92..f080f92cb1e7 100644 --- a/fs/smb/client/reparse.h +++ b/fs/smb/client/reparse.h @@ -97,14 +97,30 @@ static inline bool reparse_inode_match(struct inode *inode, static inline bool cifs_open_data_reparse(struct cifs_open_info_data *data) { - struct smb2_file_all_info *fi = &data->fi; - u32 attrs = le32_to_cpu(fi->Attributes); + u32 attrs; bool ret; - ret = data->reparse_point || (attrs & ATTR_REPARSE); - if (ret) - attrs |= ATTR_REPARSE; - fi->Attributes = cpu_to_le32(attrs); + if (data->contains_posix_file_info) { + struct smb311_posix_qinfo *fi = &data->posix_fi; + + attrs = le32_to_cpu(fi->DosAttributes); + if (data->reparse_point) { + attrs |= ATTR_REPARSE; + fi->DosAttributes = cpu_to_le32(attrs); + } + + } else { + struct smb2_file_all_info *fi = &data->fi; + + attrs = le32_to_cpu(fi->Attributes); + if (data->reparse_point) { + attrs |= ATTR_REPARSE; + fi->Attributes = cpu_to_le32(attrs); + } + } + + ret = attrs & ATTR_REPARSE; + return ret; } diff --git a/fs/smb/client/smb1ops.c b/fs/smb/client/smb1ops.c index c70f4961c4eb..bd791aa54681 100644 --- a/fs/smb/client/smb1ops.c +++ b/fs/smb/client/smb1ops.c @@ -551,7 +551,7 @@ static int cifs_query_path_info(const unsigned int xid, int rc; FILE_ALL_INFO fi = {}; - data->symlink = false; + data->reparse_point = false; data->adjust_tz = false; /* could do find first instead but this returns more info */ @@ -592,7 +592,7 @@ static int cifs_query_path_info(const unsigned int xid, /* Need to check if this is a symbolic link or not */ tmprc = CIFS_open(xid, &oparms, &oplock, NULL); if (tmprc == -EOPNOTSUPP) - data->symlink = true; + data->reparse_point = true; else if (tmprc == 0) CIFSSMBClose(xid, tcon, fid.netfid); } diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c index 7dfd3eb3847b..6048b3fed3e7 100644 --- a/fs/smb/client/smb2inode.c +++ b/fs/smb/client/smb2inode.c @@ -648,6 +648,7 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon, switch (cmds[i]) { case SMB2_OP_QUERY_INFO: idata = in_iov[i].iov_base; + idata->contains_posix_file_info = false; if (rc == 0 && cfile && cfile->symlink_target) { idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL); if (!idata->symlink_target) @@ -671,6 +672,7 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon, break; case SMB2_OP_POSIX_QUERY_INFO: idata = in_iov[i].iov_base; + idata->contains_posix_file_info = true; if (rc == 0 && cfile && cfile->symlink_target) { idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL); if (!idata->symlink_target) @@ -768,6 +770,7 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon, idata = in_iov[i].iov_base; idata->reparse.io.iov = *iov; idata->reparse.io.buftype = resp_buftype[i + 1]; + idata->contains_posix_file_info = false; /* BB VERIFY */ rbuf = reparse_buf_ptr(iov); if (IS_ERR(rbuf)) { rc = PTR_ERR(rbuf); @@ -789,6 +792,7 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon, case SMB2_OP_QUERY_WSL_EA: if (!rc) { idata = in_iov[i].iov_base; + idata->contains_posix_file_info = false; qi_rsp = rsp_iov[i + 1].iov_base; data[0] = (u8 *)qi_rsp + le16_to_cpu(qi_rsp->OutputBufferOffset); size[0] = le32_to_cpu(qi_rsp->OutputBufferLength); diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index e8da63d29a28..516be8c0b2a9 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -1001,6 +1001,7 @@ static int smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon, if (!data->symlink_target) return -ENOMEM; } + data->contains_posix_file_info = false; return SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid, &data->fi); } @@ -5177,7 +5178,7 @@ int __cifs_sfu_make_node(unsigned int xid, struct inode *inode, FILE_CREATE, CREATE_NOT_DIR | CREATE_OPTION_SPECIAL, ACL_NO_MODE); oparms.fid = &fid; - + idata.contains_posix_file_info = false; rc = server->ops->open(xid, &oparms, &oplock, &idata); if (rc) goto out; diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c index c763a2f7df66..8464261d7638 100644 --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -7441,17 +7441,17 @@ int smb2_lock(struct ksmbd_work *work) } no_check_cl: + flock = smb_lock->fl; + list_del(&smb_lock->llist); + if (smb_lock->zero_len) { err = 0; goto skip; } - - flock = smb_lock->fl; - list_del(&smb_lock->llist); retry: rc = vfs_lock_file(filp, smb_lock->cmd, flock, NULL); skip: - if (flags & SMB2_LOCKFLAG_UNLOCK) { + if (smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) { if (!rc) { ksmbd_debug(SMB, "File unlocked\n"); } else if (rc == -ENOENT) { diff --git a/fs/smb/server/smbacl.c b/fs/smb/server/smbacl.c index 1c9775f1efa5..da8ed72f335d 100644 --- a/fs/smb/server/smbacl.c +++ b/fs/smb/server/smbacl.c @@ -807,6 +807,13 @@ static int parse_sid(struct smb_sid *psid, char *end_of_acl) return -EINVAL; } + if (!psid->num_subauth) + return 0; + + if (psid->num_subauth > SID_MAX_SUB_AUTHORITIES || + end_of_acl < (char *)psid + 8 + sizeof(__le32) * psid->num_subauth) + return -EINVAL; + return 0; } @@ -848,6 +855,9 @@ int parse_sec_desc(struct mnt_idmap *idmap, struct smb_ntsd *pntsd, pntsd->type = cpu_to_le16(DACL_PRESENT); if (pntsd->osidoffset) { + if (le32_to_cpu(pntsd->osidoffset) < sizeof(struct smb_ntsd)) + return -EINVAL; + rc = parse_sid(owner_sid_ptr, end_of_acl); if (rc) { pr_err("%s: Error %d parsing Owner SID\n", __func__, rc); @@ -863,6 +873,9 @@ int parse_sec_desc(struct mnt_idmap *idmap, struct smb_ntsd *pntsd, } if (pntsd->gsidoffset) { + if (le32_to_cpu(pntsd->gsidoffset) < sizeof(struct smb_ntsd)) + return -EINVAL; + rc = parse_sid(group_sid_ptr, end_of_acl); if (rc) { pr_err("%s: Error %d mapping Owner SID to gid\n", @@ -884,6 +897,9 @@ int parse_sec_desc(struct mnt_idmap *idmap, struct smb_ntsd *pntsd, pntsd->type |= cpu_to_le16(DACL_PROTECTED); if (dacloffset) { + if (dacloffset < sizeof(struct smb_ntsd)) + return -EINVAL; + parse_dacl(idmap, dacl_ptr, end_of_acl, owner_sid_ptr, group_sid_ptr, fattr); } diff --git a/fs/smb/server/transport_ipc.c b/fs/smb/server/transport_ipc.c index 69bac122adbe..87af57cf35a1 100644 --- a/fs/smb/server/transport_ipc.c +++ b/fs/smb/server/transport_ipc.c @@ -281,6 +281,7 @@ static int handle_response(int type, void *payload, size_t sz) if (entry->type + 1 != type) { pr_err("Waiting for IPC type %d, got %d. Ignore.\n", entry->type + 1, type); + continue; } entry->response = kvzalloc(sz, GFP_KERNEL); diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h index 594d5905f615..215bf9f317cb 100644 --- a/include/asm-generic/hugetlb.h +++ b/include/asm-generic/hugetlb.h @@ -84,7 +84,7 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, #ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) + unsigned long addr, pte_t *ptep, unsigned long sz) { return ptep_get_and_clear(mm, addr, ptep); } diff --git a/include/drm/drm_client_setup.h b/include/drm/drm_client_setup.h new file mode 100644 index 000000000000..46aab3fb46be --- /dev/null +++ b/include/drm/drm_client_setup.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: MIT */ + +#ifndef DRM_CLIENT_SETUP_H +#define DRM_CLIENT_SETUP_H + +#include <linux/types.h> + +struct drm_device; +struct drm_format_info; + +#if defined(CONFIG_DRM_CLIENT_SETUP) +void drm_client_setup(struct drm_device *dev, const struct drm_format_info *format); +void drm_client_setup_with_fourcc(struct drm_device *dev, u32 fourcc); +void drm_client_setup_with_color_mode(struct drm_device *dev, unsigned int color_mode); +#else +static inline void drm_client_setup(struct drm_device *dev, + const struct drm_format_info *format) +{ } +static inline void drm_client_setup_with_fourcc(struct drm_device *dev, u32 fourcc) +{ } +static inline void drm_client_setup_with_color_mode(struct drm_device *dev, + unsigned int color_mode) +{ } +#endif + +#endif diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index 02ea4e3248fd..36a606af4ba1 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -34,6 +34,8 @@ #include <drm/drm_device.h> +struct drm_fb_helper; +struct drm_fb_helper_surface_size; struct drm_file; struct drm_gem_object; struct drm_master; @@ -366,6 +368,22 @@ struct drm_driver { struct drm_device *dev, uint32_t handle, uint64_t *offset); + /** + * @fbdev_probe + * + * Allocates and initialize the fb_info structure for fbdev emulation. + * Furthermore it also needs to allocate the DRM framebuffer used to + * back the fbdev. + * + * This callback is mandatory for fbdev support. + * + * Returns: + * + * 0 on success ot a negative error code otherwise. + */ + int (*fbdev_probe)(struct drm_fb_helper *fbdev_helper, + struct drm_fb_helper_surface_size *sizes); + /** * @show_fdinfo: * diff --git a/include/drm/drm_fbdev_client.h b/include/drm/drm_fbdev_client.h new file mode 100644 index 000000000000..e11a5614f127 --- /dev/null +++ b/include/drm/drm_fbdev_client.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: MIT */ + +#ifndef DRM_FBDEV_CLIENT_H +#define DRM_FBDEV_CLIENT_H + +struct drm_device; +struct drm_format_info; + +#ifdef CONFIG_DRM_FBDEV_EMULATION +int drm_fbdev_client_setup(struct drm_device *dev, const struct drm_format_info *format); +#else +static inline int drm_fbdev_client_setup(struct drm_device *dev, + const struct drm_format_info *format) +{ + return 0; +} +#endif + +#endif diff --git a/include/drm/drm_fbdev_ttm.h b/include/drm/drm_fbdev_ttm.h index 9e6c3bdf3537..243685d02eb1 100644 --- a/include/drm/drm_fbdev_ttm.h +++ b/include/drm/drm_fbdev_ttm.h @@ -3,11 +3,24 @@ #ifndef DRM_FBDEV_TTM_H #define DRM_FBDEV_TTM_H +#include <linux/stddef.h> + struct drm_device; +struct drm_fb_helper; +struct drm_fb_helper_surface_size; #ifdef CONFIG_DRM_FBDEV_EMULATION +int drm_fbdev_ttm_driver_fbdev_probe(struct drm_fb_helper *fb_helper, + struct drm_fb_helper_surface_size *sizes); + +#define DRM_FBDEV_TTM_DRIVER_OPS \ + .fbdev_probe = drm_fbdev_ttm_driver_fbdev_probe + void drm_fbdev_ttm_setup(struct drm_device *dev, unsigned int preferred_bpp); #else +#define DRM_FBDEV_TTM_DRIVER_OPS \ + .fbdev_probe = NULL + static inline void drm_fbdev_ttm_setup(struct drm_device *dev, unsigned int preferred_bpp) { } #endif diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index ccf91daa4307..c3f4405d6662 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -313,6 +313,7 @@ drm_get_format_info(struct drm_device *dev, uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); uint32_t drm_driver_legacy_fb_format(struct drm_device *dev, uint32_t bpp, uint32_t depth); +uint32_t drm_driver_color_mode_format(struct drm_device *dev, unsigned int color_mode); unsigned int drm_format_info_block_width(const struct drm_format_info *info, int plane); unsigned int drm_format_info_block_height(const struct drm_format_info *info, diff --git a/include/linux/compaction.h b/include/linux/compaction.h index e94776496049..7bf0c521db63 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -80,6 +80,11 @@ static inline unsigned long compact_gap(unsigned int order) return 2UL << order; } +static inline int current_is_kcompactd(void) +{ + return current->flags & PF_KCOMPACTD; +} + #ifdef CONFIG_COMPACTION extern unsigned int extfrag_for_order(struct zone *zone, unsigned int order); diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index b8b935b52603..b0ed740ca749 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -412,6 +412,29 @@ struct ethtool_eth_phy_stats { ); }; +/** + * struct ethtool_phy_stats - PHY-level statistics counters + * @rx_packets: Total successfully received frames + * @rx_bytes: Total successfully received bytes + * @rx_errors: Total received frames with errors (e.g., CRC errors) + * @tx_packets: Total successfully transmitted frames + * @tx_bytes: Total successfully transmitted bytes + * @tx_errors: Total transmitted frames with errors + * + * This structure provides a standardized interface for reporting + * PHY-level statistics counters. It is designed to expose statistics + * commonly provided by PHYs but not explicitly defined in the IEEE + * 802.3 standard. + */ +struct ethtool_phy_stats { + u64 rx_packets; + u64 rx_bytes; + u64 rx_errors; + u64 tx_packets; + u64 tx_bytes; + u64 tx_errors; +}; + /* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed * via a more targeted API. */ diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index e4697539b665..25a7b13574c2 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -1009,7 +1009,9 @@ static inline void hugetlb_count_sub(long l, struct mm_struct *mm) static inline pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { - return huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); + unsigned long psize = huge_page_size(hstate_vma(vma)); + + return huge_ptep_get_and_clear(vma->vm_mm, addr, ptep, psize); } #endif diff --git a/include/linux/nvme-tcp.h b/include/linux/nvme-tcp.h index e07e8978d691..e435250fcb4d 100644 --- a/include/linux/nvme-tcp.h +++ b/include/linux/nvme-tcp.h @@ -13,6 +13,8 @@ #define NVME_TCP_ADMIN_CCSZ SZ_8K #define NVME_TCP_DIGEST_LENGTH 4 #define NVME_TCP_MIN_MAXH2CDATA 4096 +#define NVME_TCP_MIN_C2HTERM_PLEN 24 +#define NVME_TCP_MAX_C2HTERM_PLEN 152 enum nvme_tcp_pfv { NVME_TCP_PFV_1_0 = 0x0, diff --git a/include/linux/nvme.h b/include/linux/nvme.h index b58d9405d65e..1c101f6fad2f 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -388,6 +388,7 @@ enum { NVME_CTRL_CTRATT_PREDICTABLE_LAT = 1 << 5, NVME_CTRL_CTRATT_NAMESPACE_GRANULARITY = 1 << 7, NVME_CTRL_CTRATT_UUID_LIST = 1 << 9, + NVME_CTRL_SGLS_MSDS = 1 << 19, }; struct nvme_lbaf { diff --git a/include/linux/phy.h b/include/linux/phy.h index a98bc91a0cde..945264f457d8 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1090,6 +1090,35 @@ struct phy_driver { int (*cable_test_get_status)(struct phy_device *dev, bool *finished); /* Get statistics from the PHY using ethtool */ + /** + * @get_phy_stats: Retrieve PHY statistics. + * @dev: The PHY device for which the statistics are retrieved. + * @eth_stats: structure where Ethernet PHY stats will be stored. + * @stats: structure where additional PHY-specific stats will be stored. + * + * Retrieves the supported PHY statistics and populates the provided + * structures. The input structures are pre-initialized with + * `ETHTOOL_STAT_NOT_SET`, and the driver must only modify members + * corresponding to supported statistics. Unmodified members will remain + * set to `ETHTOOL_STAT_NOT_SET` and will not be returned to userspace. + */ + void (*get_phy_stats)(struct phy_device *dev, + struct ethtool_eth_phy_stats *eth_stats, + struct ethtool_phy_stats *stats); + + /** + * @get_link_stats: Retrieve link statistics. + * @dev: The PHY device for which the statistics are retrieved. + * @link_stats: structure where link-specific stats will be stored. + * + * Retrieves link-related statistics for the given PHY device. The input + * structure is pre-initialized with `ETHTOOL_STAT_NOT_SET`, and the + * driver must only modify members corresponding to supported + * statistics. Unmodified members will remain set to + * `ETHTOOL_STAT_NOT_SET` and will not be returned to userspace. + */ + void (*get_link_stats)(struct phy_device *dev, + struct ethtool_link_ext_stats *link_stats); /** @get_sset_count: Number of statistic counters */ int (*get_sset_count)(struct phy_device *dev); /** @get_strings: Names of the statistic counters */ @@ -2055,6 +2084,13 @@ int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data); int phy_ethtool_get_sset_count(struct phy_device *phydev); int phy_ethtool_get_stats(struct phy_device *phydev, struct ethtool_stats *stats, u64 *data); + +void __phy_ethtool_get_phy_stats(struct phy_device *phydev, + struct ethtool_eth_phy_stats *phy_stats, + struct ethtool_phy_stats *phydev_stats); +void __phy_ethtool_get_link_ext_stats(struct phy_device *phydev, + struct ethtool_link_ext_stats *link_stats); + int phy_ethtool_get_plca_cfg(struct phy_device *phydev, struct phy_plca_cfg *plca_cfg); int phy_ethtool_set_plca_cfg(struct phy_device *phydev, diff --git a/include/linux/phylib_stubs.h b/include/linux/phylib_stubs.h index 1279f48c8a70..9d2d6090c86d 100644 --- a/include/linux/phylib_stubs.h +++ b/include/linux/phylib_stubs.h @@ -5,6 +5,9 @@ #include <linux/rtnetlink.h> +struct ethtool_eth_phy_stats; +struct ethtool_link_ext_stats; +struct ethtool_phy_stats; struct kernel_hwtstamp_config; struct netlink_ext_ack; struct phy_device; @@ -19,6 +22,11 @@ struct phylib_stubs { int (*hwtstamp_set)(struct phy_device *phydev, struct kernel_hwtstamp_config *config, struct netlink_ext_ack *extack); + void (*get_phy_stats)(struct phy_device *phydev, + struct ethtool_eth_phy_stats *phy_stats, + struct ethtool_phy_stats *phydev_stats); + void (*get_link_ext_stats)(struct phy_device *phydev, + struct ethtool_link_ext_stats *link_stats); }; static inline int phy_hwtstamp_get(struct phy_device *phydev, @@ -50,6 +58,29 @@ static inline int phy_hwtstamp_set(struct phy_device *phydev, return phylib_stubs->hwtstamp_set(phydev, config, extack); } +static inline void phy_ethtool_get_phy_stats(struct phy_device *phydev, + struct ethtool_eth_phy_stats *phy_stats, + struct ethtool_phy_stats *phydev_stats) +{ + ASSERT_RTNL(); + + if (!phylib_stubs) + return; + + phylib_stubs->get_phy_stats(phydev, phy_stats, phydev_stats); +} + +static inline void phy_ethtool_get_link_ext_stats(struct phy_device *phydev, + struct ethtool_link_ext_stats *link_stats) +{ + ASSERT_RTNL(); + + if (!phylib_stubs) + return; + + phylib_stubs->get_link_ext_stats(phydev, link_stats); +} + #else static inline int phy_hwtstamp_get(struct phy_device *phydev, @@ -65,4 +96,15 @@ static inline int phy_hwtstamp_set(struct phy_device *phydev, return -EOPNOTSUPP; } +static inline void phy_ethtool_get_phy_stats(struct phy_device *phydev, + struct ethtool_eth_phy_stats *phy_stats, + struct ethtool_phy_stats *phydev_stats) +{ +} + +static inline void phy_ethtool_get_link_ext_stats(struct phy_device *phydev, + struct ethtool_link_ext_stats *link_stats) +{ +} + #endif diff --git a/include/linux/sched.h b/include/linux/sched.h index 8982820dae21..0d1d70aded38 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1682,7 +1682,7 @@ extern struct pid *cad_pid; #define PF_USED_MATH 0x00002000 /* If unset the fpu must be initialized before use */ #define PF_USER_WORKER 0x00004000 /* Kernel thread cloned from userspace thread */ #define PF_NOFREEZE 0x00008000 /* This thread should not be frozen */ -#define PF__HOLE__00010000 0x00010000 +#define PF_KCOMPACTD 0x00010000 /* I am kcompactd */ #define PF_KSWAPD 0x00020000 /* I am kswapd */ #define PF_MEMALLOC_NOFS 0x00040000 /* All allocations inherit GFP_NOFS. See memalloc_nfs_save() */ #define PF_MEMALLOC_NOIO 0x00080000 /* All allocations inherit GFP_NOIO. See memalloc_noio_save() */ diff --git a/kernel/events/core.c b/kernel/events/core.c index a0e1d2124727..5fff74c73606 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -11846,6 +11846,8 @@ void perf_pmu_unregister(struct pmu *pmu) { mutex_lock(&pmus_lock); list_del_rcu(&pmu->entry); + idr_remove(&pmu_idr, pmu->type); + mutex_unlock(&pmus_lock); /* * We dereference the pmu list under both SRCU and regular RCU, so @@ -11855,7 +11857,6 @@ void perf_pmu_unregister(struct pmu *pmu) synchronize_rcu(); free_percpu(pmu->pmu_disable_count); - idr_remove(&pmu_idr, pmu->type); if (pmu_bus_running && pmu->dev && pmu->dev != PMU_NULL_DEV) { if (pmu->nr_addr_filters) device_remove_file(pmu->dev, &dev_attr_nr_addr_filters); @@ -11863,7 +11864,6 @@ void perf_pmu_unregister(struct pmu *pmu) put_device(pmu->dev); } free_pmu_context(pmu); - mutex_unlock(&pmus_lock); } EXPORT_SYMBOL_GPL(perf_pmu_unregister); diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index a0e0676f5d8b..4fdc08ca0f3c 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -1775,6 +1775,7 @@ void uprobe_free_utask(struct task_struct *t) if (!utask) return; + t->utask = NULL; if (utask->active_uprobe) put_uprobe(utask->active_uprobe); @@ -1784,7 +1785,6 @@ void uprobe_free_utask(struct task_struct *t) xol_free_insn_slot(t); kfree(utask); - t->utask = NULL; } /* diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index ddc096d6b0c2..58ba14ed8fbc 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4155,15 +4155,17 @@ static inline bool child_cfs_rq_on_list(struct cfs_rq *cfs_rq) { struct cfs_rq *prev_cfs_rq; struct list_head *prev; + struct rq *rq = rq_of(cfs_rq); if (cfs_rq->on_list) { prev = cfs_rq->leaf_cfs_rq_list.prev; } else { - struct rq *rq = rq_of(cfs_rq); - prev = rq->tmp_alone_branch; } + if (prev == &rq->leaf_cfs_rq_list) + return false; + prev_cfs_rq = container_of(prev, struct cfs_rq, leaf_cfs_rq_list); return (prev_cfs_rq->tg->parent == cfs_rq->tg); diff --git a/kernel/trace/trace_fprobe.c b/kernel/trace/trace_fprobe.c index c62d1629cffe..99048c330382 100644 --- a/kernel/trace/trace_fprobe.c +++ b/kernel/trace/trace_fprobe.c @@ -1018,6 +1018,19 @@ static int parse_symbol_and_return(int argc, const char *argv[], if (*is_return) return 0; + if (is_tracepoint) { + tmp = *symbol; + while (*tmp && (isalnum(*tmp) || *tmp == '_')) + tmp++; + if (*tmp) { + /* find a wrong character. */ + trace_probe_log_err(tmp - *symbol, BAD_TP_NAME); + kfree(*symbol); + *symbol = NULL; + return -EINVAL; + } + } + /* If there is $retval, this should be a return fprobe. */ for (i = 2; i < argc; i++) { tmp = strstr(argv[i], "$retval"); @@ -1025,6 +1038,8 @@ static int parse_symbol_and_return(int argc, const char *argv[], if (is_tracepoint) { trace_probe_log_set_index(i); trace_probe_log_err(tmp - argv[i], RETVAL_ON_PROBE); + kfree(*symbol); + *symbol = NULL; return -EINVAL; } *is_return = true; diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h index 5803e6a41570..8a6797c2278d 100644 --- a/kernel/trace/trace_probe.h +++ b/kernel/trace/trace_probe.h @@ -36,7 +36,6 @@ #define MAX_BTF_ARGS_LEN 128 #define MAX_DENTRY_ARGS_LEN 256 #define MAX_STRING_SIZE PATH_MAX -#define MAX_ARG_BUF_LEN (MAX_TRACE_ARGS * MAX_ARG_NAME_LEN) /* Reserved field names */ #define FIELD_STRING_IP "__probe_ip" @@ -481,6 +480,7 @@ extern int traceprobe_define_arg_fields(struct trace_event_call *event_call, C(NON_UNIQ_SYMBOL, "The symbol is not unique"), \ C(BAD_RETPROBE, "Retprobe address must be an function entry"), \ C(NO_TRACEPOINT, "Tracepoint is not found"), \ + C(BAD_TP_NAME, "Invalid character in tracepoint name"),\ C(BAD_ADDR_SUFFIX, "Invalid probed address suffix"), \ C(NO_GROUP_NAME, "Group name is not specified"), \ C(GROUP_TOO_LONG, "Group name is too long"), \ diff --git a/mm/compaction.c b/mm/compaction.c index 384e4672998e..77dbb9022b47 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -3164,6 +3164,7 @@ static int kcompactd(void *p) if (!cpumask_empty(cpumask)) set_cpus_allowed_ptr(tsk, cpumask); + current->flags |= PF_KCOMPACTD; set_freezable(); pgdat->kcompactd_max_order = 0; @@ -3220,6 +3221,8 @@ static int kcompactd(void *p) pgdat->proactive_compact_trigger = false; } + current->flags &= ~PF_KCOMPACTD; + return 0; } diff --git a/mm/hugetlb.c b/mm/hugetlb.c index bdee6d3ab0e7..1e9aa6de4e21 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -5395,7 +5395,7 @@ static void move_huge_pte(struct vm_area_struct *vma, unsigned long old_addr, if (src_ptl != dst_ptl) spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING); - pte = huge_ptep_get_and_clear(mm, old_addr, src_pte); + pte = huge_ptep_get_and_clear(mm, old_addr, src_pte, sz); if (need_clear_uffd_wp && pte_marker_uffd_wp(pte)) huge_pte_clear(mm, new_addr, dst_pte, sz); @@ -5570,7 +5570,7 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma, set_vma_resv_flags(vma, HPAGE_RESV_UNMAPPED); } - pte = huge_ptep_get_and_clear(mm, address, ptep); + pte = huge_ptep_get_and_clear(mm, address, ptep, sz); tlb_remove_huge_tlb_entry(h, tlb, ptep, address); if (huge_pte_dirty(pte)) set_page_dirty(page); diff --git a/mm/internal.h b/mm/internal.h index 9bb098e78f15..398633d6b6c9 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -1101,7 +1101,7 @@ static inline int find_next_best_node(int node, nodemask_t *used_node_mask) * mm/memory-failure.c */ #ifdef CONFIG_MEMORY_FAILURE -void unmap_poisoned_folio(struct folio *folio, enum ttu_flags ttu); +int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill); void shake_folio(struct folio *folio); extern int hwpoison_filter(struct page *p); @@ -1123,8 +1123,9 @@ void add_to_kill_ksm(struct task_struct *tsk, struct page *p, unsigned long page_mapped_in_vma(struct page *page, struct vm_area_struct *vma); #else -static inline void unmap_poisoned_folio(struct folio *folio, enum ttu_flags ttu) +static inline int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill) { + return -EBUSY; } #endif diff --git a/mm/kasan/kasan_test_rust.rs b/mm/kasan/kasan_test_rust.rs index caa7175964ef..5b34edf30e72 100644 --- a/mm/kasan/kasan_test_rust.rs +++ b/mm/kasan/kasan_test_rust.rs @@ -11,11 +11,12 @@ /// drop the vector, and touch it. #[no_mangle] pub extern "C" fn kasan_test_rust_uaf() -> u8 { - let mut v: Vec<u8> = Vec::new(); + let mut v: KVec<u8> = KVec::new(); for _ in 0..4096 { v.push(0x42, GFP_KERNEL).unwrap(); } let ptr: *mut u8 = addr_of_mut!(v[2048]); drop(v); + // SAFETY: Incorrect, on purpose. unsafe { *ptr } } diff --git a/mm/kmsan/hooks.c b/mm/kmsan/hooks.c index 3ea50f09311f..3df45c25c1f6 100644 --- a/mm/kmsan/hooks.c +++ b/mm/kmsan/hooks.c @@ -357,6 +357,7 @@ void kmsan_handle_dma(struct page *page, size_t offset, size_t size, size -= to_go; } } +EXPORT_SYMBOL_GPL(kmsan_handle_dma); void kmsan_handle_dma_sg(struct scatterlist *sg, int nents, enum dma_data_direction dir) diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 96ce31e5a203..fa25a022e64d 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1554,11 +1554,35 @@ static int get_hwpoison_page(struct page *p, unsigned long flags) return ret; } -void unmap_poisoned_folio(struct folio *folio, enum ttu_flags ttu) +int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill) { - if (folio_test_hugetlb(folio) && !folio_test_anon(folio)) { - struct address_space *mapping; + enum ttu_flags ttu = TTU_IGNORE_MLOCK | TTU_SYNC | TTU_HWPOISON; + struct address_space *mapping; + + if (folio_test_swapcache(folio)) { + pr_err("%#lx: keeping poisoned page in swap cache\n", pfn); + ttu &= ~TTU_HWPOISON; + } + /* + * Propagate the dirty bit from PTEs to struct page first, because we + * need this to decide if we should kill or just drop the page. + * XXX: the dirty test could be racy: set_page_dirty() may not always + * be called inside page lock (it's recommended but not enforced). + */ + mapping = folio_mapping(folio); + if (!must_kill && !folio_test_dirty(folio) && mapping && + mapping_can_writeback(mapping)) { + if (folio_mkclean(folio)) { + folio_set_dirty(folio); + } else { + ttu &= ~TTU_HWPOISON; + pr_info("%#lx: corrupted page was clean: dropped without side effects\n", + pfn); + } + } + + if (folio_test_hugetlb(folio) && !folio_test_anon(folio)) { /* * For hugetlb folios in shared mappings, try_to_unmap * could potentially call huge_pmd_unshare. Because of @@ -1570,7 +1594,7 @@ void unmap_poisoned_folio(struct folio *folio, enum ttu_flags ttu) if (!mapping) { pr_info("%#lx: could not lock mapping for mapped hugetlb folio\n", folio_pfn(folio)); - return; + return -EBUSY; } try_to_unmap(folio, ttu|TTU_RMAP_LOCKED); @@ -1578,6 +1602,8 @@ void unmap_poisoned_folio(struct folio *folio, enum ttu_flags ttu) } else { try_to_unmap(folio, ttu); } + + return folio_mapped(folio) ? -EBUSY : 0; } /* @@ -1587,8 +1613,6 @@ void unmap_poisoned_folio(struct folio *folio, enum ttu_flags ttu) static bool hwpoison_user_mappings(struct folio *folio, struct page *p, unsigned long pfn, int flags) { - enum ttu_flags ttu = TTU_IGNORE_MLOCK | TTU_SYNC | TTU_HWPOISON; - struct address_space *mapping; LIST_HEAD(tokill); bool unmap_success; int forcekill; @@ -1611,29 +1635,6 @@ static bool hwpoison_user_mappings(struct folio *folio, struct page *p, if (!folio_mapped(folio)) return true; - if (folio_test_swapcache(folio)) { - pr_err("%#lx: keeping poisoned page in swap cache\n", pfn); - ttu &= ~TTU_HWPOISON; - } - - /* - * Propagate the dirty bit from PTEs to struct page first, because we - * need this to decide if we should kill or just drop the page. - * XXX: the dirty test could be racy: set_page_dirty() may not always - * be called inside page lock (it's recommended but not enforced). - */ - mapping = folio_mapping(folio); - if (!(flags & MF_MUST_KILL) && !folio_test_dirty(folio) && mapping && - mapping_can_writeback(mapping)) { - if (folio_mkclean(folio)) { - folio_set_dirty(folio); - } else { - ttu &= ~TTU_HWPOISON; - pr_info("%#lx: corrupted page was clean: dropped without side effects\n", - pfn); - } - } - /* * First collect all the processes that have the page * mapped in dirty form. This has to be done before try_to_unmap, @@ -1641,9 +1642,7 @@ static bool hwpoison_user_mappings(struct folio *folio, struct page *p, */ collect_procs(folio, p, &tokill, flags & MF_ACTION_REQUIRED); - unmap_poisoned_folio(folio, ttu); - - unmap_success = !folio_mapped(folio); + unmap_success = !unmap_poisoned_folio(folio, pfn, flags & MF_MUST_KILL); if (!unmap_success) pr_err("%#lx: failed to unmap page (folio mapcount=%d)\n", pfn, folio_mapcount(folio)); diff --git a/mm/memory.c b/mm/memory.c index d322ddfe6791..525f96ad65b8 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2957,8 +2957,10 @@ static int __apply_to_page_range(struct mm_struct *mm, unsigned long addr, next = pgd_addr_end(addr, end); if (pgd_none(*pgd) && !create) continue; - if (WARN_ON_ONCE(pgd_leaf(*pgd))) - return -EINVAL; + if (WARN_ON_ONCE(pgd_leaf(*pgd))) { + err = -EINVAL; + break; + } if (!pgd_none(*pgd) && WARN_ON_ONCE(pgd_bad(*pgd))) { if (!create) continue; @@ -5077,7 +5079,11 @@ vm_fault_t finish_fault(struct vm_fault *vmf) bool is_cow = (vmf->flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED); int type, nr_pages; - unsigned long addr = vmf->address; + unsigned long addr; + bool needs_fallback = false; + +fallback: + addr = vmf->address; /* Did we COW the page? */ if (is_cow) @@ -5116,7 +5122,8 @@ vm_fault_t finish_fault(struct vm_fault *vmf) * approach also applies to non-anonymous-shmem faults to avoid * inflating the RSS of the process. */ - if (!vma_is_anon_shmem(vma) || unlikely(userfaultfd_armed(vma))) { + if (!vma_is_anon_shmem(vma) || unlikely(userfaultfd_armed(vma)) || + unlikely(needs_fallback)) { nr_pages = 1; } else if (nr_pages > 1) { pgoff_t idx = folio_page_idx(folio, page); @@ -5152,9 +5159,9 @@ vm_fault_t finish_fault(struct vm_fault *vmf) ret = VM_FAULT_NOPAGE; goto unlock; } else if (nr_pages > 1 && !pte_range_none(vmf->pte, nr_pages)) { - update_mmu_tlb_range(vma, addr, vmf->pte, nr_pages); - ret = VM_FAULT_NOPAGE; - goto unlock; + needs_fallback = true; + pte_unmap_unlock(vmf->pte, vmf->ptl); + goto fallback; } folio_ref_add(folio, nr_pages - 1); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 621ae1015106..619445096ef4 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1795,26 +1795,24 @@ static void do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) if (folio_test_large(folio)) pfn = folio_pfn(folio) + folio_nr_pages(folio) - 1; - /* - * HWPoison pages have elevated reference counts so the migration would - * fail on them. It also doesn't make any sense to migrate them in the - * first place. Still try to unmap such a page in case it is still mapped - * (keep the unmap as the catch all safety net). - */ + if (!folio_try_get(folio)) + continue; + + if (unlikely(page_folio(page) != folio)) + goto put_folio; + if (folio_test_hwpoison(folio) || (folio_test_large(folio) && folio_test_has_hwpoisoned(folio))) { if (WARN_ON(folio_test_lru(folio))) folio_isolate_lru(folio); - if (folio_mapped(folio)) - unmap_poisoned_folio(folio, TTU_IGNORE_MLOCK); - continue; - } - - if (!folio_try_get(folio)) - continue; + if (folio_mapped(folio)) { + folio_lock(folio); + unmap_poisoned_folio(folio, pfn, false); + folio_unlock(folio); + } - if (unlikely(page_folio(page) != folio)) goto put_folio; + } if (!isolate_folio_to_list(folio, &source)) { if (__ratelimit(&migrate_rs)) { diff --git a/mm/page_alloc.c b/mm/page_alloc.c index de65e8b4f75f..e0a77fe1b630 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4243,6 +4243,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, restart: compaction_retries = 0; no_progress_loops = 0; + compact_result = COMPACT_SKIPPED; compact_priority = DEF_COMPACT_PRIORITY; cpuset_mems_cookie = read_mems_allowed_begin(); zonelist_iter_cookie = zonelist_iter_begin(); @@ -5991,11 +5992,10 @@ static void setup_per_zone_lowmem_reserve(void) for (j = i + 1; j < MAX_NR_ZONES; j++) { struct zone *upper_zone = &pgdat->node_zones[j]; - bool empty = !zone_managed_pages(upper_zone); managed_pages += zone_managed_pages(upper_zone); - if (clear || empty) + if (clear) zone->lowmem_reserve[j] = 0; else zone->lowmem_reserve[j] = managed_pages / ratio; diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c index ce13c4062647..66011831d798 100644 --- a/mm/userfaultfd.c +++ b/mm/userfaultfd.c @@ -1215,6 +1215,7 @@ static int move_pages_pte(struct mm_struct *mm, pmd_t *dst_pmd, pmd_t *src_pmd, */ if (!src_folio) { struct folio *folio; + bool locked; /* * Pin the page while holding the lock to be sure the @@ -1234,12 +1235,26 @@ static int move_pages_pte(struct mm_struct *mm, pmd_t *dst_pmd, pmd_t *src_pmd, goto out; } + locked = folio_trylock(folio); + /* + * We avoid waiting for folio lock with a raised + * refcount for large folios because extra refcounts + * will result in split_folio() failing later and + * retrying. If multiple tasks are trying to move a + * large folio we can end up livelocking. + */ + if (!locked && folio_test_large(folio)) { + spin_unlock(src_ptl); + err = -EAGAIN; + goto out; + } + folio_get(folio); src_folio = folio; src_folio_pte = orig_src_pte; spin_unlock(src_ptl); - if (!folio_trylock(src_folio)) { + if (!locked) { pte_unmap(&orig_src_pte); pte_unmap(&orig_dst_pte); src_pte = dst_pte = NULL; diff --git a/mm/vma.c b/mm/vma.c index 7621384d64cf..c9ddc06b672a 100644 --- a/mm/vma.c +++ b/mm/vma.c @@ -1417,24 +1417,28 @@ int do_vmi_munmap(struct vma_iterator *vmi, struct mm_struct *mm, static struct vm_area_struct *vma_modify(struct vma_merge_struct *vmg) { struct vm_area_struct *vma = vmg->vma; + unsigned long start = vmg->start; + unsigned long end = vmg->end; struct vm_area_struct *merged; /* First, try to merge. */ merged = vma_merge_existing_range(vmg); if (merged) return merged; + if (vmg_nomem(vmg)) + return ERR_PTR(-ENOMEM); /* Split any preceding portion of the VMA. */ - if (vma->vm_start < vmg->start) { - int err = split_vma(vmg->vmi, vma, vmg->start, 1); + if (vma->vm_start < start) { + int err = split_vma(vmg->vmi, vma, start, 1); if (err) return ERR_PTR(err); } /* Split any trailing portion of the VMA. */ - if (vma->vm_end > vmg->end) { - int err = split_vma(vmg->vmi, vma, vmg->end, 0); + if (vma->vm_end > end) { + int err = split_vma(vmg->vmi, vma, end, 0); if (err) return ERR_PTR(err); diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 3f9255dfacb0..fd70a7cd1c8f 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -586,13 +586,13 @@ static int vmap_small_pages_range_noflush(unsigned long addr, unsigned long end, mask |= PGTBL_PGD_MODIFIED; err = vmap_pages_p4d_range(pgd, addr, next, prot, pages, &nr, &mask); if (err) - return err; + break; } while (pgd++, addr = next, addr != end); if (mask & ARCH_PAGE_TABLE_SYNC_MASK) arch_sync_kernel_mappings(start, end); - return 0; + return err; } /* diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index e45187b88220..41be38264493 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -131,7 +131,8 @@ int vlan_check_real_dev(struct net_device *real_dev, { const char *name = real_dev->name; - if (real_dev->features & NETIF_F_VLAN_CHALLENGED) { + if (real_dev->features & NETIF_F_VLAN_CHALLENGED || + real_dev->type != ARPHRD_ETHER) { pr_info("VLANs not supported on %s\n", name); NL_SET_ERR_MSG_MOD(extack, "VLANs not supported on device"); return -EOPNOTSUPP; diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 90c21b3edcd8..c019f69c5939 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -9731,6 +9731,9 @@ void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, sizeof(*ev) + (name ? eir_precalc_len(name_len) : 0) + eir_precalc_len(sizeof(conn->dev_class))); + if (!skb) + return; + ev = skb_put(skb, sizeof(*ev)); bacpy(&ev->addr.bdaddr, &conn->dst); ev->addr.type = link_to_bdaddr(conn->type, conn->dst_type); @@ -10484,6 +10487,8 @@ void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, skb = mgmt_alloc_skb(hdev, MGMT_EV_DEVICE_FOUND, sizeof(*ev) + (name ? eir_precalc_len(name_len) : 0)); + if (!skb) + return; ev = skb_put(skb, sizeof(*ev)); bacpy(&ev->addr.bdaddr, bdaddr); diff --git a/net/ethtool/cabletest.c b/net/ethtool/cabletest.c index f22051f33868..84096f6b0236 100644 --- a/net/ethtool/cabletest.c +++ b/net/ethtool/cabletest.c @@ -72,8 +72,8 @@ int ethnl_act_cable_test(struct sk_buff *skb, struct genl_info *info) dev = req_info.dev; rtnl_lock(); - phydev = ethnl_req_get_phydev(&req_info, - tb[ETHTOOL_A_CABLE_TEST_HEADER], + phydev = ethnl_req_get_phydev(&req_info, tb, + ETHTOOL_A_CABLE_TEST_HEADER, info->extack); if (IS_ERR_OR_NULL(phydev)) { ret = -EOPNOTSUPP; @@ -339,8 +339,8 @@ int ethnl_act_cable_test_tdr(struct sk_buff *skb, struct genl_info *info) goto out_dev_put; rtnl_lock(); - phydev = ethnl_req_get_phydev(&req_info, - tb[ETHTOOL_A_CABLE_TEST_TDR_HEADER], + phydev = ethnl_req_get_phydev(&req_info, tb, + ETHTOOL_A_CABLE_TEST_TDR_HEADER, info->extack); if (IS_ERR_OR_NULL(phydev)) { ret = -EOPNOTSUPP; diff --git a/net/ethtool/linkstate.c b/net/ethtool/linkstate.c index 34d76e87847d..05a5f72c99fa 100644 --- a/net/ethtool/linkstate.c +++ b/net/ethtool/linkstate.c @@ -3,6 +3,7 @@ #include "netlink.h" #include "common.h" #include <linux/phy.h> +#include <linux/phylib_stubs.h> struct linkstate_req_info { struct ethnl_req_info base; @@ -26,9 +27,8 @@ const struct nla_policy ethnl_linkstate_get_policy[] = { NLA_POLICY_NESTED(ethnl_header_policy_stats), }; -static int linkstate_get_sqi(struct net_device *dev) +static int linkstate_get_sqi(struct phy_device *phydev) { - struct phy_device *phydev = dev->phydev; int ret; if (!phydev) @@ -46,9 +46,8 @@ static int linkstate_get_sqi(struct net_device *dev) return ret; } -static int linkstate_get_sqi_max(struct net_device *dev) +static int linkstate_get_sqi_max(struct phy_device *phydev) { - struct phy_device *phydev = dev->phydev; int ret; if (!phydev) @@ -100,19 +99,28 @@ static int linkstate_prepare_data(const struct ethnl_req_info *req_base, { struct linkstate_reply_data *data = LINKSTATE_REPDATA(reply_base); struct net_device *dev = reply_base->dev; + struct nlattr **tb = info->attrs; + struct phy_device *phydev; int ret; + phydev = ethnl_req_get_phydev(req_base, tb, ETHTOOL_A_LINKSTATE_HEADER, + info->extack); + if (IS_ERR(phydev)) { + ret = PTR_ERR(phydev); + goto out; + } + ret = ethnl_ops_begin(dev); if (ret < 0) return ret; data->link = __ethtool_get_link(dev); - ret = linkstate_get_sqi(dev); + ret = linkstate_get_sqi(phydev); if (linkstate_sqi_critical_error(ret)) goto out; data->sqi = ret; - ret = linkstate_get_sqi_max(dev); + ret = linkstate_get_sqi_max(phydev); if (linkstate_sqi_critical_error(ret)) goto out; data->sqi_max = ret; @@ -127,9 +135,9 @@ static int linkstate_prepare_data(const struct ethnl_req_info *req_base, sizeof(data->link_stats) / 8); if (req_base->flags & ETHTOOL_FLAG_STATS) { - if (dev->phydev) - data->link_stats.link_down_events = - READ_ONCE(dev->phydev->link_down_events); + if (phydev) + phy_ethtool_get_link_ext_stats(phydev, + &data->link_stats); if (dev->ethtool_ops->get_link_ext_stats) dev->ethtool_ops->get_link_ext_stats(dev, diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c index 4d18dc29b304..e233dfc8ca4b 100644 --- a/net/ethtool/netlink.c +++ b/net/ethtool/netlink.c @@ -210,7 +210,7 @@ int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info, } struct phy_device *ethnl_req_get_phydev(const struct ethnl_req_info *req_info, - const struct nlattr *header, + struct nlattr **tb, unsigned int header, struct netlink_ext_ack *extack) { struct phy_device *phydev; @@ -224,8 +224,8 @@ struct phy_device *ethnl_req_get_phydev(const struct ethnl_req_info *req_info, return req_info->dev->phydev; phydev = phy_link_topo_get_phy(req_info->dev, req_info->phy_index); - if (!phydev) { - NL_SET_ERR_MSG_ATTR(extack, header, + if (!phydev && tb) { + NL_SET_ERR_MSG_ATTR(extack, tb[header], "no phy matching phyindex"); return ERR_PTR(-ENODEV); } diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h index 203b08eb6c6f..5e176938d6d2 100644 --- a/net/ethtool/netlink.h +++ b/net/ethtool/netlink.h @@ -275,7 +275,8 @@ static inline void ethnl_parse_header_dev_put(struct ethnl_req_info *req_info) * ethnl_req_get_phydev() - Gets the phy_device targeted by this request, * if any. Must be called under rntl_lock(). * @req_info: The ethnl request to get the phy from. - * @header: The netlink header, used for error reporting. + * @tb: The netlink attributes array, for error reporting. + * @header: The netlink header index, used for error reporting. * @extack: The netlink extended ACK, for error reporting. * * The caller must hold RTNL, until it's done interacting with the returned @@ -289,7 +290,7 @@ static inline void ethnl_parse_header_dev_put(struct ethnl_req_info *req_info) * is returned. */ struct phy_device *ethnl_req_get_phydev(const struct ethnl_req_info *req_info, - const struct nlattr *header, + struct nlattr **tb, unsigned int header, struct netlink_ext_ack *extack); /** diff --git a/net/ethtool/phy.c b/net/ethtool/phy.c index ed8f690f6bac..e067cc234419 100644 --- a/net/ethtool/phy.c +++ b/net/ethtool/phy.c @@ -125,7 +125,7 @@ static int ethnl_phy_parse_request(struct ethnl_req_info *req_base, struct phy_req_info *req_info = PHY_REQINFO(req_base); struct phy_device *phydev; - phydev = ethnl_req_get_phydev(req_base, tb[ETHTOOL_A_PHY_HEADER], + phydev = ethnl_req_get_phydev(req_base, tb, ETHTOOL_A_PHY_HEADER, extack); if (!phydev) return 0; diff --git a/net/ethtool/plca.c b/net/ethtool/plca.c index d95d92f173a6..e1f7820a6158 100644 --- a/net/ethtool/plca.c +++ b/net/ethtool/plca.c @@ -62,7 +62,7 @@ static int plca_get_cfg_prepare_data(const struct ethnl_req_info *req_base, struct phy_device *phydev; int ret; - phydev = ethnl_req_get_phydev(req_base, tb[ETHTOOL_A_PLCA_HEADER], + phydev = ethnl_req_get_phydev(req_base, tb, ETHTOOL_A_PLCA_HEADER, info->extack); // check that the PHY device is available and connected if (IS_ERR_OR_NULL(phydev)) { @@ -152,7 +152,7 @@ ethnl_set_plca(struct ethnl_req_info *req_info, struct genl_info *info) bool mod = false; int ret; - phydev = ethnl_req_get_phydev(req_info, tb[ETHTOOL_A_PLCA_HEADER], + phydev = ethnl_req_get_phydev(req_info, tb, ETHTOOL_A_PLCA_HEADER, info->extack); // check that the PHY device is available and connected if (IS_ERR_OR_NULL(phydev)) @@ -211,7 +211,7 @@ static int plca_get_status_prepare_data(const struct ethnl_req_info *req_base, struct phy_device *phydev; int ret; - phydev = ethnl_req_get_phydev(req_base, tb[ETHTOOL_A_PLCA_HEADER], + phydev = ethnl_req_get_phydev(req_base, tb, ETHTOOL_A_PLCA_HEADER, info->extack); // check that the PHY device is available and connected if (IS_ERR_OR_NULL(phydev)) { diff --git a/net/ethtool/pse-pd.c b/net/ethtool/pse-pd.c index a0705edca22a..71843de832cc 100644 --- a/net/ethtool/pse-pd.c +++ b/net/ethtool/pse-pd.c @@ -64,7 +64,7 @@ static int pse_prepare_data(const struct ethnl_req_info *req_base, if (ret < 0) return ret; - phydev = ethnl_req_get_phydev(req_base, tb[ETHTOOL_A_PSE_HEADER], + phydev = ethnl_req_get_phydev(req_base, tb, ETHTOOL_A_PSE_HEADER, info->extack); if (IS_ERR(phydev)) return -ENODEV; @@ -261,7 +261,7 @@ ethnl_set_pse(struct ethnl_req_info *req_info, struct genl_info *info) struct phy_device *phydev; int ret; - phydev = ethnl_req_get_phydev(req_info, tb[ETHTOOL_A_PSE_HEADER], + phydev = ethnl_req_get_phydev(req_info, tb, ETHTOOL_A_PSE_HEADER, info->extack); ret = ethnl_set_pse_validate(phydev, info); if (ret) diff --git a/net/ethtool/stats.c b/net/ethtool/stats.c index 912f0c4fff2f..273ae4ff343f 100644 --- a/net/ethtool/stats.c +++ b/net/ethtool/stats.c @@ -1,5 +1,8 @@ // SPDX-License-Identifier: GPL-2.0-only +#include <linux/phy.h> +#include <linux/phylib_stubs.h> + #include "netlink.h" #include "common.h" #include "bitset.h" @@ -20,6 +23,7 @@ struct stats_reply_data { struct ethtool_eth_mac_stats mac_stats; struct ethtool_eth_ctrl_stats ctrl_stats; struct ethtool_rmon_stats rmon_stats; + struct ethtool_phy_stats phydev_stats; ); const struct ethtool_rmon_hist_range *rmon_ranges; }; @@ -120,8 +124,15 @@ static int stats_prepare_data(const struct ethnl_req_info *req_base, struct stats_reply_data *data = STATS_REPDATA(reply_base); enum ethtool_mac_stats_src src = req_info->src; struct net_device *dev = reply_base->dev; + struct nlattr **tb = info->attrs; + struct phy_device *phydev; int ret; + phydev = ethnl_req_get_phydev(req_base, tb, ETHTOOL_A_STATS_HEADER, + info->extack); + if (IS_ERR(phydev)) + return PTR_ERR(phydev); + ret = ethnl_ops_begin(dev); if (ret < 0) return ret; @@ -145,6 +156,13 @@ static int stats_prepare_data(const struct ethnl_req_info *req_base, data->ctrl_stats.src = src; data->rmon_stats.src = src; + if (test_bit(ETHTOOL_STATS_ETH_PHY, req_info->stat_mask) && + src == ETHTOOL_MAC_STATS_SRC_AGGREGATE) { + if (phydev) + phy_ethtool_get_phy_stats(phydev, &data->phy_stats, + &data->phydev_stats); + } + if (test_bit(ETHTOOL_STATS_ETH_PHY, req_info->stat_mask) && dev->ethtool_ops->get_eth_phy_stats) dev->ethtool_ops->get_eth_phy_stats(dev, &data->phy_stats); diff --git a/net/ethtool/strset.c b/net/ethtool/strset.c index b3382b3cf325..b9400d18f01d 100644 --- a/net/ethtool/strset.c +++ b/net/ethtool/strset.c @@ -299,7 +299,7 @@ static int strset_prepare_data(const struct ethnl_req_info *req_base, return 0; } - phydev = ethnl_req_get_phydev(req_base, tb[ETHTOOL_A_HEADER_FLAGS], + phydev = ethnl_req_get_phydev(req_base, tb, ETHTOOL_A_HEADER_FLAGS, info->extack); /* phydev can be NULL, check for errors only */ diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c index 2308665b51c5..2dfac79dc78b 100644 --- a/net/ipv4/tcp_offload.c +++ b/net/ipv4/tcp_offload.c @@ -13,12 +13,15 @@ #include <net/tcp.h> #include <net/protocol.h> -static void tcp_gso_tstamp(struct sk_buff *skb, unsigned int ts_seq, +static void tcp_gso_tstamp(struct sk_buff *skb, struct sk_buff *gso_skb, unsigned int seq, unsigned int mss) { + u32 flags = skb_shinfo(gso_skb)->tx_flags & SKBTX_ANY_TSTAMP; + u32 ts_seq = skb_shinfo(gso_skb)->tskey; + while (skb) { if (before(ts_seq, seq + mss)) { - skb_shinfo(skb)->tx_flags |= SKBTX_SW_TSTAMP; + skb_shinfo(skb)->tx_flags |= flags; skb_shinfo(skb)->tskey = ts_seq; return; } @@ -193,8 +196,8 @@ struct sk_buff *tcp_gso_segment(struct sk_buff *skb, th = tcp_hdr(skb); seq = ntohl(th->seq); - if (unlikely(skb_shinfo(gso_skb)->tx_flags & SKBTX_SW_TSTAMP)) - tcp_gso_tstamp(segs, skb_shinfo(gso_skb)->tskey, seq, mss); + if (unlikely(skb_shinfo(gso_skb)->tx_flags & SKBTX_ANY_TSTAMP)) + tcp_gso_tstamp(segs, gso_skb, seq, mss); newcheck = ~csum_fold(csum_add(csum_unfold(th->check), delta)); diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c index a5be6e4ed326..ecfca59f31f1 100644 --- a/net/ipv4/udp_offload.c +++ b/net/ipv4/udp_offload.c @@ -321,13 +321,17 @@ struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb, /* clear destructor to avoid skb_segment assigning it to tail */ copy_dtor = gso_skb->destructor == sock_wfree; - if (copy_dtor) + if (copy_dtor) { gso_skb->destructor = NULL; + gso_skb->sk = NULL; + } segs = skb_segment(gso_skb, features); if (IS_ERR_OR_NULL(segs)) { - if (copy_dtor) + if (copy_dtor) { gso_skb->destructor = sock_wfree; + gso_skb->sk = sk; + } return segs; } diff --git a/net/ipv6/ila/ila_lwt.c b/net/ipv6/ila/ila_lwt.c index ff7e734e335b..7d574f5132e2 100644 --- a/net/ipv6/ila/ila_lwt.c +++ b/net/ipv6/ila/ila_lwt.c @@ -88,13 +88,15 @@ static int ila_output(struct net *net, struct sock *sk, struct sk_buff *skb) goto drop; } - if (ilwt->connected) { + /* cache only if we don't create a dst reference loop */ + if (ilwt->connected && orig_dst->lwtstate != dst->lwtstate) { local_bh_disable(); dst_cache_set_ip6(&ilwt->dst_cache, dst, &fl6.saddr); local_bh_enable(); } } + skb_dst_drop(skb); skb_dst_set(skb, dst); return dst_output(net, sk, skb); diff --git a/net/llc/llc_s_ac.c b/net/llc/llc_s_ac.c index 06fb8e6944b0..7a0cae9a8111 100644 --- a/net/llc/llc_s_ac.c +++ b/net/llc/llc_s_ac.c @@ -24,7 +24,7 @@ #include <net/llc_s_ac.h> #include <net/llc_s_ev.h> #include <net/llc_sap.h> - +#include <net/sock.h> /** * llc_sap_action_unitdata_ind - forward UI PDU to network layer @@ -40,6 +40,26 @@ int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb) return 0; } +static int llc_prepare_and_xmit(struct sk_buff *skb) +{ + struct llc_sap_state_ev *ev = llc_sap_ev(skb); + struct sk_buff *nskb; + int rc; + + rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac); + if (rc) + return rc; + + nskb = skb_clone(skb, GFP_ATOMIC); + if (!nskb) + return -ENOMEM; + + if (skb->sk) + skb_set_owner_w(nskb, skb->sk); + + return dev_queue_xmit(nskb); +} + /** * llc_sap_action_send_ui - sends UI PDU resp to UNITDATA REQ to MAC layer * @sap: SAP @@ -52,17 +72,12 @@ int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb) int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb) { struct llc_sap_state_ev *ev = llc_sap_ev(skb); - int rc; llc_pdu_header_init(skb, LLC_PDU_TYPE_U, ev->saddr.lsap, ev->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_ui_cmd(skb); - rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac); - if (likely(!rc)) { - skb_get(skb); - rc = dev_queue_xmit(skb); - } - return rc; + + return llc_prepare_and_xmit(skb); } /** @@ -77,17 +92,12 @@ int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb) int llc_sap_action_send_xid_c(struct llc_sap *sap, struct sk_buff *skb) { struct llc_sap_state_ev *ev = llc_sap_ev(skb); - int rc; llc_pdu_header_init(skb, LLC_PDU_TYPE_U_XID, ev->saddr.lsap, ev->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_xid_cmd(skb, LLC_XID_NULL_CLASS_2, 0); - rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac); - if (likely(!rc)) { - skb_get(skb); - rc = dev_queue_xmit(skb); - } - return rc; + + return llc_prepare_and_xmit(skb); } /** @@ -133,17 +143,12 @@ int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb) int llc_sap_action_send_test_c(struct llc_sap *sap, struct sk_buff *skb) { struct llc_sap_state_ev *ev = llc_sap_ev(skb); - int rc; llc_pdu_header_init(skb, LLC_PDU_TYPE_U, ev->saddr.lsap, ev->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_test_cmd(skb); - rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac); - if (likely(!rc)) { - skb_get(skb); - rc = dev_queue_xmit(skb); - } - return rc; + + return llc_prepare_and_xmit(skb); } int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 7a0242e937d3..bfe0514efca3 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1751,6 +1751,7 @@ struct ieee802_11_elems { const struct ieee80211_eht_operation *eht_operation; const struct ieee80211_multi_link_elem *ml_basic; const struct ieee80211_multi_link_elem *ml_reconf; + const struct ieee80211_multi_link_elem *ml_epcs; const struct ieee80211_bandwidth_indication *bandwidth_indication; const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; @@ -1781,6 +1782,7 @@ struct ieee802_11_elems { /* mult-link element can be de-fragmented and thus u8 is not sufficient */ size_t ml_basic_len; size_t ml_reconf_len; + size_t ml_epcs_len; u8 ttlm_num; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 111066928b96..88751b0eb317 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -4733,6 +4733,7 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, parse_params.start = bss_ies->data; parse_params.len = bss_ies->len; parse_params.bss = cbss; + parse_params.link_id = -1; bss_elems = ieee802_11_parse_elems_full(&parse_params); if (!bss_elems) { ret = false; diff --git a/net/mac80211/parse.c b/net/mac80211/parse.c index 279c5143b335..6da39c864f45 100644 --- a/net/mac80211/parse.c +++ b/net/mac80211/parse.c @@ -44,6 +44,12 @@ struct ieee80211_elems_parse { /* The reconfiguration Multi-Link element in the original elements */ const struct element *ml_reconf_elem; + /* The EPCS Multi-Link element in the original elements */ + const struct element *ml_epcs_elem; + + bool multi_link_inner; + bool skip_vendor; + /* * scratch buffer that can be used for various element parsing related * tasks, e.g., element de-fragmentation etc. @@ -149,16 +155,18 @@ ieee80211_parse_extension_element(u32 *crc, switch (le16_get_bits(mle->control, IEEE80211_ML_CONTROL_TYPE)) { case IEEE80211_ML_CONTROL_TYPE_BASIC: - if (elems_parse->ml_basic_elem) { + if (elems_parse->multi_link_inner) { elems->parse_error |= IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC; break; } - elems_parse->ml_basic_elem = elem; break; case IEEE80211_ML_CONTROL_TYPE_RECONF: elems_parse->ml_reconf_elem = elem; break; + case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS: + elems_parse->ml_epcs_elem = elem; + break; default: break; } @@ -393,6 +401,9 @@ _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params, IEEE80211_PARSE_ERR_BAD_ELEM_SIZE; break; case WLAN_EID_VENDOR_SPECIFIC: + if (elems_parse->skip_vendor) + break; + if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && pos[2] == 0xf2) { /* Microsoft OUI (00:50:F2) */ @@ -860,21 +871,36 @@ ieee80211_mle_get_sta_prof(struct ieee80211_elems_parse *elems_parse, } } -static void ieee80211_mle_parse_link(struct ieee80211_elems_parse *elems_parse, - struct ieee80211_elems_parse_params *params) +static const struct element * +ieee80211_prep_mle_link_parse(struct ieee80211_elems_parse *elems_parse, + struct ieee80211_elems_parse_params *params, + struct ieee80211_elems_parse_params *sub) { struct ieee802_11_elems *elems = &elems_parse->elems; struct ieee80211_mle_per_sta_profile *prof; - struct ieee80211_elems_parse_params sub = { - .mode = params->mode, - .action = params->action, - .from_ap = params->from_ap, - .link_id = -1, - }; - ssize_t ml_len = elems->ml_basic_len; - const struct element *non_inherit = NULL; + const struct element *tmp; + ssize_t ml_len; const u8 *end; + if (params->mode < IEEE80211_CONN_MODE_EHT) + return NULL; + + for_each_element_extid(tmp, WLAN_EID_EXT_EHT_MULTI_LINK, + elems->ie_start, elems->total_len) { + const struct ieee80211_multi_link_elem *mle = + (void *)tmp->data + 1; + + if (!ieee80211_mle_size_ok(tmp->data + 1, tmp->datalen - 1)) + continue; + + if (le16_get_bits(mle->control, IEEE80211_ML_CONTROL_TYPE) != + IEEE80211_ML_CONTROL_TYPE_BASIC) + continue; + + elems_parse->ml_basic_elem = tmp; + break; + } + ml_len = cfg80211_defragment_element(elems_parse->ml_basic_elem, elems->ie_start, elems->total_len, @@ -885,26 +911,26 @@ static void ieee80211_mle_parse_link(struct ieee80211_elems_parse *elems_parse, WLAN_EID_FRAGMENT); if (ml_len < 0) - return; + return NULL; elems->ml_basic = (const void *)elems_parse->scratch_pos; elems->ml_basic_len = ml_len; elems_parse->scratch_pos += ml_len; if (params->link_id == -1) - return; + return NULL; ieee80211_mle_get_sta_prof(elems_parse, params->link_id); prof = elems->prof; if (!prof) - return; + return NULL; /* check if we have the 4 bytes for the fixed part in assoc response */ if (elems->sta_prof_len < sizeof(*prof) + prof->sta_info_len - 1 + 4) { elems->prof = NULL; elems->sta_prof_len = 0; - return; + return NULL; } /* @@ -913,13 +939,17 @@ static void ieee80211_mle_parse_link(struct ieee80211_elems_parse *elems_parse, * the -1 is because the 'sta_info_len' is accounted to as part of the * per-STA profile, but not part of the 'u8 variable[]' portion. */ - sub.start = prof->variable + prof->sta_info_len - 1 + 4; + sub->start = prof->variable + prof->sta_info_len - 1 + 4; end = (const u8 *)prof + elems->sta_prof_len; - sub.len = end - sub.start; + sub->len = end - sub->start; + + sub->mode = params->mode; + sub->action = params->action; + sub->from_ap = params->from_ap; + sub->link_id = -1; - non_inherit = cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, - sub.start, sub.len); - _ieee802_11_parse_elems_full(&sub, elems_parse, non_inherit); + return cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, + sub->start, sub->len); } static void @@ -943,18 +973,43 @@ ieee80211_mle_defrag_reconf(struct ieee80211_elems_parse *elems_parse) elems_parse->scratch_pos += ml_len; } +static void +ieee80211_mle_defrag_epcs(struct ieee80211_elems_parse *elems_parse) +{ + struct ieee802_11_elems *elems = &elems_parse->elems; + ssize_t ml_len; + + ml_len = cfg80211_defragment_element(elems_parse->ml_epcs_elem, + elems->ie_start, + elems->total_len, + elems_parse->scratch_pos, + elems_parse->scratch + + elems_parse->scratch_len - + elems_parse->scratch_pos, + WLAN_EID_FRAGMENT); + if (ml_len < 0) + return; + elems->ml_epcs = (void *)elems_parse->scratch_pos; + elems->ml_epcs_len = ml_len; + elems_parse->scratch_pos += ml_len; +} + struct ieee802_11_elems * ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params) { + struct ieee80211_elems_parse_params sub = {}; struct ieee80211_elems_parse *elems_parse; - struct ieee802_11_elems *elems; const struct element *non_inherit = NULL; - u8 *nontransmitted_profile; - int nontransmitted_profile_len = 0; + struct ieee802_11_elems *elems; size_t scratch_len = 3 * params->len; + bool multi_link_inner = false; BUILD_BUG_ON(offsetof(typeof(*elems_parse), elems) != 0); + /* cannot parse for both a specific link and non-transmitted BSS */ + if (WARN_ON(params->link_id >= 0 && params->bss)) + return NULL; + elems_parse = kzalloc(struct_size(elems_parse, scratch, scratch_len), GFP_ATOMIC); if (!elems_parse) @@ -971,36 +1026,55 @@ ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params) ieee80211_clear_tpe(&elems->tpe); ieee80211_clear_tpe(&elems->csa_tpe); - nontransmitted_profile = elems_parse->scratch_pos; - nontransmitted_profile_len = - ieee802_11_find_bssid_profile(params->start, params->len, - elems, params->bss, - nontransmitted_profile); - elems_parse->scratch_pos += nontransmitted_profile_len; - non_inherit = cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, - nontransmitted_profile, - nontransmitted_profile_len); + /* + * If we're looking for a non-transmitted BSS then we cannot at + * the same time be looking for a second link as the two can only + * appear in the same frame carrying info for different BSSes. + * + * In any case, we only look for one at a time, as encoded by + * the WARN_ON above. + */ + if (params->bss) { + int nontx_len = + ieee802_11_find_bssid_profile(params->start, + params->len, + elems, params->bss, + elems_parse->scratch_pos); + sub.start = elems_parse->scratch_pos; + sub.mode = params->mode; + sub.len = nontx_len; + sub.action = params->action; + sub.link_id = params->link_id; + + /* consume the space used for non-transmitted profile */ + elems_parse->scratch_pos += nontx_len; + + non_inherit = cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, + sub.start, nontx_len); + } else { + /* must always parse to get elems_parse->ml_basic_elem */ + non_inherit = ieee80211_prep_mle_link_parse(elems_parse, params, + &sub); + multi_link_inner = true; + } + elems_parse->skip_vendor = + cfg80211_find_elem(WLAN_EID_VENDOR_SPECIFIC, + sub.start, sub.len); elems->crc = _ieee802_11_parse_elems_full(params, elems_parse, non_inherit); - /* Override with nontransmitted profile, if found */ - if (nontransmitted_profile_len) { - struct ieee80211_elems_parse_params sub = { - .mode = params->mode, - .start = nontransmitted_profile, - .len = nontransmitted_profile_len, - .action = params->action, - .link_id = params->link_id, - }; - + /* Override with nontransmitted/per-STA profile if found */ + if (sub.len) { + elems_parse->multi_link_inner = multi_link_inner; + elems_parse->skip_vendor = false; _ieee802_11_parse_elems_full(&sub, elems_parse, NULL); } - ieee80211_mle_parse_link(elems_parse, params); - ieee80211_mle_defrag_reconf(elems_parse); + ieee80211_mle_defrag_epcs(elems_parse); + if (elems->tim && !elems->parse_error) { const struct ieee80211_tim_ie *tim_ie = elems->tim; diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index b4ba2d9f0417..2a085ec5bfd0 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -968,7 +968,7 @@ static void __mptcp_pm_release_addr_entry(struct mptcp_pm_addr_entry *entry) static int mptcp_pm_nl_append_new_local_addr(struct pm_nl_pernet *pernet, struct mptcp_pm_addr_entry *entry, - bool needs_id) + bool needs_id, bool replace) { struct mptcp_pm_addr_entry *cur, *del_entry = NULL; unsigned int addr_max; @@ -1008,6 +1008,17 @@ static int mptcp_pm_nl_append_new_local_addr(struct pm_nl_pernet *pernet, if (entry->addr.id) goto out; + /* allow callers that only need to look up the local + * addr's id to skip replacement. This allows them to + * avoid calling synchronize_rcu in the packet recv + * path. + */ + if (!replace) { + kfree(entry); + ret = cur->addr.id; + goto out; + } + pernet->addrs--; entry->addr.id = cur->addr.id; list_del_rcu(&cur->list); @@ -1160,7 +1171,7 @@ int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct mptcp_addr_info *skc entry->ifindex = 0; entry->flags = MPTCP_PM_ADDR_FLAG_IMPLICIT; entry->lsk = NULL; - ret = mptcp_pm_nl_append_new_local_addr(pernet, entry, true); + ret = mptcp_pm_nl_append_new_local_addr(pernet, entry, true, false); if (ret < 0) kfree(entry); @@ -1432,7 +1443,8 @@ int mptcp_pm_nl_add_addr_doit(struct sk_buff *skb, struct genl_info *info) } } ret = mptcp_pm_nl_append_new_local_addr(pernet, entry, - !mptcp_pm_has_addr_attr_id(attr, info)); + !mptcp_pm_has_addr_attr_id(attr, info), + true); if (ret < 0) { GENL_SET_ERR_MSG_FMT(info, "too many addresses or duplicate one: %d", ret); goto out_free; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 1e78f575fb56..ecfceddce00f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -4218,6 +4218,11 @@ static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) if (flags[flag]) *mntrflags |= (1<<flag); + /* cooked monitor mode is incompatible with other modes */ + if (*mntrflags & MONITOR_FLAG_COOK_FRAMES && + *mntrflags != MONITOR_FLAG_COOK_FRAMES) + return -EOPNOTSUPP; + *mntrflags |= MONITOR_FLAG_CHANGED; return 0; diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 6489ba943a63..2b626078739c 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -407,7 +407,8 @@ static bool is_an_alpha2(const char *alpha2) { if (!alpha2) return false; - return isalpha(alpha2[0]) && isalpha(alpha2[1]); + return isascii(alpha2[0]) && isalpha(alpha2[0]) && + isascii(alpha2[1]) && isalpha(alpha2[1]); } static bool alpha2_equal(const char *alpha2_x, const char *alpha2_y) diff --git a/rust/Makefile b/rust/Makefile index 45779a064fa4..09521fc449dc 100644 --- a/rust/Makefile +++ b/rust/Makefile @@ -3,7 +3,7 @@ # Where to place rustdoc generated documentation rustdoc_output := $(objtree)/Documentation/output/rust/rustdoc -obj-$(CONFIG_RUST) += core.o compiler_builtins.o +obj-$(CONFIG_RUST) += core.o compiler_builtins.o ffi.o always-$(CONFIG_RUST) += exports_core_generated.h # Missing prototypes are expected in the helpers since these are exported @@ -15,8 +15,8 @@ always-$(CONFIG_RUST) += libmacros.so no-clean-files += libmacros.so always-$(CONFIG_RUST) += bindings/bindings_generated.rs bindings/bindings_helpers_generated.rs -obj-$(CONFIG_RUST) += alloc.o bindings.o kernel.o -always-$(CONFIG_RUST) += exports_alloc_generated.h exports_helpers_generated.h \ +obj-$(CONFIG_RUST) += bindings.o kernel.o +always-$(CONFIG_RUST) += exports_helpers_generated.h \ exports_bindings_generated.h exports_kernel_generated.h always-$(CONFIG_RUST) += uapi/uapi_generated.rs @@ -53,15 +53,10 @@ endif core-cfgs = \ --cfg no_fp_fmt_parse -alloc-cfgs = \ - --cfg no_global_oom_handling \ - --cfg no_rc \ - --cfg no_sync - quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $< cmd_rustdoc = \ OBJTREE=$(abspath $(objtree)) \ - $(RUSTDOC) $(if $(rustdoc_host),$(rust_common_flags),$(rust_flags)) \ + $(RUSTDOC) $(filter-out $(skip_flags),$(if $(rustdoc_host),$(rust_common_flags),$(rust_flags))) \ $(rustc_target_flags) -L$(objtree)/$(obj) \ -Zunstable-options --generate-link-to-definition \ --output $(rustdoc_output) \ @@ -81,7 +76,7 @@ quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $< # command-like flags to solve the issue. Meanwhile, we use the non-custom case # and then retouch the generated files. rustdoc: rustdoc-core rustdoc-macros rustdoc-compiler_builtins \ - rustdoc-alloc rustdoc-kernel + rustdoc-kernel $(Q)cp $(srctree)/Documentation/images/logo.svg $(rustdoc_output)/static.files/ $(Q)cp $(srctree)/Documentation/images/COPYING-logo $(rustdoc_output)/static.files/ $(Q)find $(rustdoc_output) -name '*.html' -type f -print0 | xargs -0 sed -Ei \ @@ -98,6 +93,9 @@ rustdoc-macros: private rustc_target_flags = --crate-type proc-macro \ rustdoc-macros: $(src)/macros/lib.rs FORCE +$(call if_changed,rustdoc) +# Starting with Rust 1.82.0, skipping `-Wrustdoc::unescaped_backticks` should +# not be needed -- see https://github.com/rust-lang/rust/pull/128307. +rustdoc-core: private skip_flags = -Wrustdoc::unescaped_backticks rustdoc-core: private rustc_target_flags = $(core-cfgs) rustdoc-core: $(RUST_LIB_SRC)/core/src/lib.rs FORCE +$(call if_changed,rustdoc) @@ -105,20 +103,14 @@ rustdoc-core: $(RUST_LIB_SRC)/core/src/lib.rs FORCE rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE +$(call if_changed,rustdoc) -# We need to allow `rustdoc::broken_intra_doc_links` because some -# `no_global_oom_handling` functions refer to non-`no_global_oom_handling` -# functions. Ideally `rustdoc` would have a way to distinguish broken links -# due to things that are "configured out" vs. entirely non-existing ones. -rustdoc-alloc: private rustc_target_flags = $(alloc-cfgs) \ - -Arustdoc::broken_intra_doc_links -rustdoc-alloc: $(RUST_LIB_SRC)/alloc/src/lib.rs rustdoc-core rustdoc-compiler_builtins FORCE +rustdoc-ffi: $(src)/ffi.rs rustdoc-core FORCE +$(call if_changed,rustdoc) -rustdoc-kernel: private rustc_target_flags = --extern alloc \ +rustdoc-kernel: private rustc_target_flags = --extern ffi \ --extern build_error --extern macros=$(objtree)/$(obj)/libmacros.so \ --extern bindings --extern uapi -rustdoc-kernel: $(src)/kernel/lib.rs rustdoc-core rustdoc-macros \ - rustdoc-compiler_builtins rustdoc-alloc $(obj)/libmacros.so \ +rustdoc-kernel: $(src)/kernel/lib.rs rustdoc-core rustdoc-ffi rustdoc-macros \ + rustdoc-compiler_builtins $(obj)/libmacros.so \ $(obj)/bindings.o FORCE +$(call if_changed,rustdoc) @@ -135,15 +127,28 @@ quiet_cmd_rustc_test_library = RUSTC TL $< rusttestlib-build_error: $(src)/build_error.rs FORCE +$(call if_changed,rustc_test_library) +rusttestlib-ffi: $(src)/ffi.rs FORCE + +$(call if_changed,rustc_test_library) + rusttestlib-macros: private rustc_target_flags = --extern proc_macro rusttestlib-macros: private rustc_test_library_proc = yes rusttestlib-macros: $(src)/macros/lib.rs FORCE +$(call if_changed,rustc_test_library) -rusttestlib-bindings: $(src)/bindings/lib.rs FORCE +rusttestlib-kernel: private rustc_target_flags = --extern ffi \ + --extern build_error --extern macros \ + --extern bindings --extern uapi +rusttestlib-kernel: $(src)/kernel/lib.rs \ + rusttestlib-bindings rusttestlib-uapi rusttestlib-build_error \ + $(obj)/libmacros.so $(obj)/bindings.o FORCE + +$(call if_changed,rustc_test_library) + +rusttestlib-bindings: private rustc_target_flags = --extern ffi +rusttestlib-bindings: $(src)/bindings/lib.rs rusttestlib-ffi FORCE +$(call if_changed,rustc_test_library) -rusttestlib-uapi: $(src)/uapi/lib.rs FORCE +rusttestlib-uapi: private rustc_target_flags = --extern ffi +rusttestlib-uapi: $(src)/uapi/lib.rs rusttestlib-ffi FORCE +$(call if_changed,rustc_test_library) quiet_cmd_rustdoc_test = RUSTDOC T $< @@ -162,7 +167,7 @@ quiet_cmd_rustdoc_test_kernel = RUSTDOC TK $< mkdir -p $(objtree)/$(obj)/test/doctests/kernel; \ OBJTREE=$(abspath $(objtree)) \ $(RUSTDOC) --test $(rust_flags) \ - -L$(objtree)/$(obj) --extern alloc --extern kernel \ + -L$(objtree)/$(obj) --extern ffi --extern kernel \ --extern build_error --extern macros \ --extern bindings --extern uapi \ --no-run --crate-name kernel -Zunstable-options \ @@ -192,19 +197,20 @@ quiet_cmd_rustc_test = RUSTC T $< rusttest: rusttest-macros rusttest-kernel -rusttest-macros: private rustc_target_flags = --extern proc_macro +rusttest-macros: private rustc_target_flags = --extern proc_macro \ + --extern macros --extern kernel rusttest-macros: private rustdoc_test_target_flags = --crate-type proc-macro -rusttest-macros: $(src)/macros/lib.rs FORCE +rusttest-macros: $(src)/macros/lib.rs \ + rusttestlib-macros rusttestlib-kernel FORCE +$(call if_changed,rustc_test) +$(call if_changed,rustdoc_test) -rusttest-kernel: private rustc_target_flags = --extern alloc \ +rusttest-kernel: private rustc_target_flags = --extern ffi \ --extern build_error --extern macros --extern bindings --extern uapi -rusttest-kernel: $(src)/kernel/lib.rs \ +rusttest-kernel: $(src)/kernel/lib.rs rusttestlib-ffi rusttestlib-kernel \ rusttestlib-build_error rusttestlib-macros rusttestlib-bindings \ rusttestlib-uapi FORCE +$(call if_changed,rustc_test) - +$(call if_changed,rustc_test_library) ifdef CONFIG_CC_IS_CLANG bindgen_c_flags = $(c_flags) @@ -266,7 +272,11 @@ else bindgen_c_flags_lto = $(bindgen_c_flags) endif -bindgen_c_flags_final = $(bindgen_c_flags_lto) -D__BINDGEN__ +# `-fno-builtin` is passed to avoid `bindgen` from using `clang` builtin +# prototypes for functions like `memcpy` -- if this flag is not passed, +# `bindgen`-generated prototypes use `c_ulong` or `c_uint` depending on +# architecture instead of generating `usize`. +bindgen_c_flags_final = $(bindgen_c_flags_lto) -fno-builtin -D__BINDGEN__ # Each `bindgen` release may upgrade the list of Rust target versions. By # default, the highest stable release in their list is used. Thus we need to set @@ -284,7 +294,7 @@ bindgen_c_flags_final = $(bindgen_c_flags_lto) -D__BINDGEN__ quiet_cmd_bindgen = BINDGEN $@ cmd_bindgen = \ $(BINDGEN) $< $(bindgen_target_flags) --rust-target 1.68 \ - --use-core --with-derive-default --ctypes-prefix core::ffi --no-layout-tests \ + --use-core --with-derive-default --ctypes-prefix ffi --no-layout-tests \ --no-debug '.*' --enable-function-attribute-detection \ -o $@ -- $(bindgen_c_flags_final) -DMODULE \ $(bindgen_target_cflags) $(bindgen_target_extra) @@ -325,9 +335,6 @@ quiet_cmd_exports = EXPORTS $@ $(obj)/exports_core_generated.h: $(obj)/core.o FORCE $(call if_changed,exports) -$(obj)/exports_alloc_generated.h: $(obj)/alloc.o FORCE - $(call if_changed,exports) - # Even though Rust kernel modules should never use the bindings directly, # symbols from the `bindings` crate and the C helpers need to be exported # because Rust generics and inlined functions may not get their code generated @@ -374,7 +381,7 @@ quiet_cmd_rustc_library = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) L rust-analyzer: $(Q)$(srctree)/scripts/generate_rust_analyzer.py \ - --cfgs='core=$(core-cfgs)' --cfgs='alloc=$(alloc-cfgs)' \ + --cfgs='core=$(core-cfgs)' \ $(realpath $(srctree)) $(realpath $(objtree)) \ $(rustc_sysroot) $(RUST_LIB_SRC) $(KBUILD_EXTMOD) > \ $(if $(KBUILD_EXTMOD),$(extmod_prefix),$(objtree))/rust-project.json @@ -412,29 +419,28 @@ $(obj)/compiler_builtins.o: private rustc_objcopy = -w -W '__*' $(obj)/compiler_builtins.o: $(src)/compiler_builtins.rs $(obj)/core.o FORCE +$(call if_changed_rule,rustc_library) -$(obj)/alloc.o: private skip_clippy = 1 -$(obj)/alloc.o: private skip_flags = -Wunreachable_pub -$(obj)/alloc.o: private rustc_target_flags = $(alloc-cfgs) -$(obj)/alloc.o: $(RUST_LIB_SRC)/alloc/src/lib.rs $(obj)/compiler_builtins.o FORCE +$(obj)/build_error.o: $(src)/build_error.rs $(obj)/compiler_builtins.o FORCE +$(call if_changed_rule,rustc_library) -$(obj)/build_error.o: $(src)/build_error.rs $(obj)/compiler_builtins.o FORCE +$(obj)/ffi.o: $(src)/ffi.rs $(obj)/compiler_builtins.o FORCE +$(call if_changed_rule,rustc_library) +$(obj)/bindings.o: private rustc_target_flags = --extern ffi $(obj)/bindings.o: $(src)/bindings/lib.rs \ - $(obj)/compiler_builtins.o \ + $(obj)/ffi.o \ $(obj)/bindings/bindings_generated.rs \ $(obj)/bindings/bindings_helpers_generated.rs FORCE +$(call if_changed_rule,rustc_library) +$(obj)/uapi.o: private rustc_target_flags = --extern ffi $(obj)/uapi.o: $(src)/uapi/lib.rs \ - $(obj)/compiler_builtins.o \ + $(obj)/ffi.o \ $(obj)/uapi/uapi_generated.rs FORCE +$(call if_changed_rule,rustc_library) -$(obj)/kernel.o: private rustc_target_flags = --extern alloc \ +$(obj)/kernel.o: private rustc_target_flags = --extern ffi \ --extern build_error --extern macros --extern bindings --extern uapi -$(obj)/kernel.o: $(src)/kernel/lib.rs $(obj)/alloc.o $(obj)/build_error.o \ +$(obj)/kernel.o: $(src)/kernel/lib.rs $(obj)/build_error.o \ $(obj)/libmacros.so $(obj)/bindings.o $(obj)/uapi.o FORCE +$(call if_changed_rule,rustc_library) diff --git a/rust/bindgen_parameters b/rust/bindgen_parameters index b7c7483123b7..0f96af8b9a7f 100644 --- a/rust/bindgen_parameters +++ b/rust/bindgen_parameters @@ -1,5 +1,10 @@ # SPDX-License-Identifier: GPL-2.0 +# We want to map these types to `isize`/`usize` manually, instead of +# define them as `int`/`long` depending on platform bitwidth. +--blocklist-type __kernel_s?size_t +--blocklist-type __kernel_ptrdiff_t + --opaque-type xregs_state --opaque-type desc_struct --opaque-type arch_lbr_state diff --git a/rust/bindings/bindings_helper.h b/rust/bindings/bindings_helper.h index ae82e9c941af..a80783fcbe04 100644 --- a/rust/bindings/bindings_helper.h +++ b/rust/bindings/bindings_helper.h @@ -31,4 +31,5 @@ const gfp_t RUST_CONST_HELPER_GFP_KERNEL_ACCOUNT = GFP_KERNEL_ACCOUNT; const gfp_t RUST_CONST_HELPER_GFP_NOWAIT = GFP_NOWAIT; const gfp_t RUST_CONST_HELPER___GFP_ZERO = __GFP_ZERO; const gfp_t RUST_CONST_HELPER___GFP_HIGHMEM = ___GFP_HIGHMEM; +const gfp_t RUST_CONST_HELPER___GFP_NOWARN = ___GFP_NOWARN; const blk_features_t RUST_CONST_HELPER_BLK_FEAT_ROTATIONAL = BLK_FEAT_ROTATIONAL; diff --git a/rust/bindings/lib.rs b/rust/bindings/lib.rs index 93a1a3fc97bc..014af0d1fc70 100644 --- a/rust/bindings/lib.rs +++ b/rust/bindings/lib.rs @@ -25,7 +25,13 @@ )] #[allow(dead_code)] +#[allow(clippy::undocumented_unsafe_blocks)] mod bindings_raw { + // Manual definition for blocklisted types. + type __kernel_size_t = usize; + type __kernel_ssize_t = isize; + type __kernel_ptrdiff_t = isize; + // Use glob import here to expose all helpers. // Symbols defined within the module will take precedence to the glob import. pub use super::bindings_helper::*; diff --git a/rust/exports.c b/rust/exports.c index e5695f3b45b7..82a037381798 100644 --- a/rust/exports.c +++ b/rust/exports.c @@ -16,7 +16,6 @@ #define EXPORT_SYMBOL_RUST_GPL(sym) extern int sym; EXPORT_SYMBOL_GPL(sym) #include "exports_core_generated.h" -#include "exports_alloc_generated.h" #include "exports_helpers_generated.h" #include "exports_bindings_generated.h" #include "exports_kernel_generated.h" diff --git a/rust/ffi.rs b/rust/ffi.rs new file mode 100644 index 000000000000..584f75b49862 --- /dev/null +++ b/rust/ffi.rs @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 + +//! Foreign function interface (FFI) types. +//! +//! This crate provides mapping from C primitive types to Rust ones. +//! +//! The Rust [`core`] crate provides [`core::ffi`], which maps integer types to the platform default +//! C ABI. The kernel does not use [`core::ffi`], so it can customise the mapping that deviates from +//! the platform default. + +#![no_std] + +macro_rules! alias { + ($($name:ident = $ty:ty;)*) => {$( + #[allow(non_camel_case_types, missing_docs)] + pub type $name = $ty; + + // Check size compatibility with `core`. + const _: () = assert!( + core::mem::size_of::<$name>() == core::mem::size_of::<core::ffi::$name>() + ); + )*} +} + +alias! { + // `core::ffi::c_char` is either `i8` or `u8` depending on architecture. In the kernel, we use + // `-funsigned-char` so it's always mapped to `u8`. + c_char = u8; + + c_schar = i8; + c_uchar = u8; + + c_short = i16; + c_ushort = u16; + + c_int = i32; + c_uint = u32; + + // In the kernel, `intptr_t` is defined to be `long` in all platforms, so we can map the type to + // `isize`. + c_long = isize; + c_ulong = usize; + + c_longlong = i64; + c_ulonglong = u64; +} + +pub use core::ffi::c_void; diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index 30f40149f3a9..20a0c69d5cc7 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -22,5 +22,6 @@ #include "spinlock.c" #include "task.c" #include "uaccess.c" +#include "vmalloc.c" #include "wait.c" #include "workqueue.c" diff --git a/rust/helpers/slab.c b/rust/helpers/slab.c index f043e087f9d6..a842bfbddcba 100644 --- a/rust/helpers/slab.c +++ b/rust/helpers/slab.c @@ -7,3 +7,9 @@ rust_helper_krealloc(const void *objp, size_t new_size, gfp_t flags) { return krealloc(objp, new_size, flags); } + +void * __must_check __realloc_size(2) +rust_helper_kvrealloc(const void *p, size_t size, gfp_t flags) +{ + return kvrealloc(p, size, flags); +} diff --git a/rust/helpers/vmalloc.c b/rust/helpers/vmalloc.c new file mode 100644 index 000000000000..80d34501bbc0 --- /dev/null +++ b/rust/helpers/vmalloc.c @@ -0,0 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/vmalloc.h> + +void * __must_check __realloc_size(2) +rust_helper_vrealloc(const void *p, size_t size, gfp_t flags) +{ + return vrealloc(p, size, flags); +} diff --git a/rust/kernel/alloc.rs b/rust/kernel/alloc.rs index 1966bd407017..f2f7f3a53d29 100644 --- a/rust/kernel/alloc.rs +++ b/rust/kernel/alloc.rs @@ -1,23 +1,41 @@ // SPDX-License-Identifier: GPL-2.0 -//! Extensions to the [`alloc`] crate. +//! Implementation of the kernel's memory allocation infrastructure. -#[cfg(not(test))] -#[cfg(not(testlib))] -mod allocator; -pub mod box_ext; -pub mod vec_ext; +#[cfg(not(any(test, testlib)))] +pub mod allocator; +pub mod kbox; +pub mod kvec; +pub mod layout; + +#[cfg(any(test, testlib))] +pub mod allocator_test; + +#[cfg(any(test, testlib))] +pub use self::allocator_test as allocator; + +pub use self::kbox::Box; +pub use self::kbox::KBox; +pub use self::kbox::KVBox; +pub use self::kbox::VBox; + +pub use self::kvec::IntoIter; +pub use self::kvec::KVVec; +pub use self::kvec::KVec; +pub use self::kvec::VVec; +pub use self::kvec::Vec; /// Indicates an allocation error. #[derive(Copy, Clone, PartialEq, Eq, Debug)] pub struct AllocError; +use core::{alloc::Layout, ptr::NonNull}; /// Flags to be used when allocating memory. /// /// They can be combined with the operators `|`, `&`, and `!`. /// /// Values can be used from the [`flags`] module. -#[derive(Clone, Copy)] +#[derive(Clone, Copy, PartialEq)] pub struct Flags(u32); impl Flags { @@ -25,6 +43,11 @@ impl Flags { pub(crate) fn as_raw(self) -> u32 { self.0 } + + /// Check whether `flags` is contained in `self`. + pub fn contains(self, flags: Flags) -> bool { + (self & flags) == flags + } } impl core::ops::BitOr for Flags { @@ -85,4 +108,117 @@ pub mod flags { /// use any filesystem callback. It is very likely to fail to allocate memory, even for very /// small allocations. pub const GFP_NOWAIT: Flags = Flags(bindings::GFP_NOWAIT); + + /// Suppresses allocation failure reports. + /// + /// This is normally or'd with other flags. + pub const __GFP_NOWARN: Flags = Flags(bindings::__GFP_NOWARN); +} + +/// The kernel's [`Allocator`] trait. +/// +/// An implementation of [`Allocator`] can allocate, re-allocate and free memory buffers described +/// via [`Layout`]. +/// +/// [`Allocator`] is designed to be implemented as a ZST; [`Allocator`] functions do not operate on +/// an object instance. +/// +/// In order to be able to support `#[derive(SmartPointer)]` later on, we need to avoid a design +/// that requires an `Allocator` to be instantiated, hence its functions must not contain any kind +/// of `self` parameter. +/// +/// # Safety +/// +/// - A memory allocation returned from an allocator must remain valid until it is explicitly freed. +/// +/// - Any pointer to a valid memory allocation must be valid to be passed to any other [`Allocator`] +/// function of the same type. +/// +/// - Implementers must ensure that all trait functions abide by the guarantees documented in the +/// `# Guarantees` sections. +pub unsafe trait Allocator { + /// Allocate memory based on `layout` and `flags`. + /// + /// On success, returns a buffer represented as `NonNull<[u8]>` that satisfies the layout + /// constraints (i.e. minimum size and alignment as specified by `layout`). + /// + /// This function is equivalent to `realloc` when called with `None`. + /// + /// # Guarantees + /// + /// When the return value is `Ok(ptr)`, then `ptr` is + /// - valid for reads and writes for `layout.size()` bytes, until it is passed to + /// [`Allocator::free`] or [`Allocator::realloc`], + /// - aligned to `layout.align()`, + /// + /// Additionally, `Flags` are honored as documented in + /// <https://docs.kernel.org/core-api/mm-api.html#mm-api-gfp-flags>. + fn alloc(layout: Layout, flags: Flags) -> Result<NonNull<[u8]>, AllocError> { + // SAFETY: Passing `None` to `realloc` is valid by its safety requirements and asks for a + // new memory allocation. + unsafe { Self::realloc(None, layout, Layout::new::<()>(), flags) } + } + + /// Re-allocate an existing memory allocation to satisfy the requested `layout`. + /// + /// If the requested size is zero, `realloc` behaves equivalent to `free`. + /// + /// If the requested size is larger than the size of the existing allocation, a successful call + /// to `realloc` guarantees that the new or grown buffer has at least `Layout::size` bytes, but + /// may also be larger. + /// + /// If the requested size is smaller than the size of the existing allocation, `realloc` may or + /// may not shrink the buffer; this is implementation specific to the allocator. + /// + /// On allocation failure, the existing buffer, if any, remains valid. + /// + /// The buffer is represented as `NonNull<[u8]>`. + /// + /// # Safety + /// + /// - If `ptr == Some(p)`, then `p` must point to an existing and valid memory allocation + /// created by this [`Allocator`]; if `old_layout` is zero-sized `p` does not need to be a + /// pointer returned by this [`Allocator`]. + /// - `ptr` is allowed to be `None`; in this case a new memory allocation is created and + /// `old_layout` is ignored. + /// - `old_layout` must match the `Layout` the allocation has been created with. + /// + /// # Guarantees + /// + /// This function has the same guarantees as [`Allocator::alloc`]. When `ptr == Some(p)`, then + /// it additionally guarantees that: + /// - the contents of the memory pointed to by `p` are preserved up to the lesser of the new + /// and old size, i.e. `ret_ptr[0..min(layout.size(), old_layout.size())] == + /// p[0..min(layout.size(), old_layout.size())]`. + /// - when the return value is `Err(AllocError)`, then `ptr` is still valid. + unsafe fn realloc( + ptr: Option<NonNull<u8>>, + layout: Layout, + old_layout: Layout, + flags: Flags, + ) -> Result<NonNull<[u8]>, AllocError>; + + /// Free an existing memory allocation. + /// + /// # Safety + /// + /// - `ptr` must point to an existing and valid memory allocation created by this [`Allocator`]; + /// if `old_layout` is zero-sized `p` does not need to be a pointer returned by this + /// [`Allocator`]. + /// - `layout` must match the `Layout` the allocation has been created with. + /// - The memory allocation at `ptr` must never again be read from or written to. + unsafe fn free(ptr: NonNull<u8>, layout: Layout) { + // SAFETY: The caller guarantees that `ptr` points at a valid allocation created by this + // allocator. We are passing a `Layout` with the smallest possible alignment, so it is + // smaller than or equal to the alignment previously used with this allocation. + let _ = unsafe { Self::realloc(Some(ptr), Layout::new::<()>(), layout, Flags(0)) }; + } +} + +/// Returns a properly aligned dangling pointer from the given `layout`. +pub(crate) fn dangling_from_layout(layout: Layout) -> NonNull<u8> { + let ptr = layout.align() as *mut u8; + + // SAFETY: `layout.align()` (and hence `ptr`) is guaranteed to be non-zero. + unsafe { NonNull::new_unchecked(ptr) } } diff --git a/rust/kernel/alloc/allocator.rs b/rust/kernel/alloc/allocator.rs index e6ea601f38c6..439985e29fbc 100644 --- a/rust/kernel/alloc/allocator.rs +++ b/rust/kernel/alloc/allocator.rs @@ -1,74 +1,188 @@ // SPDX-License-Identifier: GPL-2.0 //! Allocator support. +//! +//! Documentation for the kernel's memory allocators can found in the "Memory Allocation Guide" +//! linked below. For instance, this includes the concept of "get free page" (GFP) flags and the +//! typical application of the different kernel allocators. +//! +//! Reference: <https://docs.kernel.org/core-api/memory-allocation.html> -use super::{flags::*, Flags}; -use core::alloc::{GlobalAlloc, Layout}; +use super::Flags; +use core::alloc::Layout; use core::ptr; +use core::ptr::NonNull; -struct KernelAllocator; +use crate::alloc::{AllocError, Allocator}; +use crate::bindings; +use crate::pr_warn; -/// Calls `krealloc` with a proper size to alloc a new object aligned to `new_layout`'s alignment. +/// The contiguous kernel allocator. /// -/// # Safety +/// `Kmalloc` is typically used for physically contiguous allocations up to page size, but also +/// supports larger allocations up to `bindings::KMALLOC_MAX_SIZE`, which is hardware specific. /// -/// - `ptr` can be either null or a pointer which has been allocated by this allocator. -/// - `new_layout` must have a non-zero size. -pub(crate) unsafe fn krealloc_aligned(ptr: *mut u8, new_layout: Layout, flags: Flags) -> *mut u8 { +/// For more details see [self]. +pub struct Kmalloc; + +/// The virtually contiguous kernel allocator. +/// +/// `Vmalloc` allocates pages from the page level allocator and maps them into the contiguous kernel +/// virtual space. It is typically used for large allocations. The memory allocated with this +/// allocator is not physically contiguous. +/// +/// For more details see [self]. +pub struct Vmalloc; + +/// The kvmalloc kernel allocator. +/// +/// `KVmalloc` attempts to allocate memory with `Kmalloc` first, but falls back to `Vmalloc` upon +/// failure. This allocator is typically used when the size for the requested allocation is not +/// known and may exceed the capabilities of `Kmalloc`. +/// +/// For more details see [self]. +pub struct KVmalloc; + +/// Returns a proper size to alloc a new object aligned to `new_layout`'s alignment. +fn aligned_size(new_layout: Layout) -> usize { // Customized layouts from `Layout::from_size_align()` can have size < align, so pad first. let layout = new_layout.pad_to_align(); // Note that `layout.size()` (after padding) is guaranteed to be a multiple of `layout.align()` // which together with the slab guarantees means the `krealloc` will return a properly aligned // object (see comments in `kmalloc()` for more information). - let size = layout.size(); - - // SAFETY: - // - `ptr` is either null or a pointer returned from a previous `k{re}alloc()` by the - // function safety requirement. - // - `size` is greater than 0 since it's from `layout.size()` (which cannot be zero according - // to the function safety requirement) - unsafe { bindings::krealloc(ptr as *const core::ffi::c_void, size, flags.0) as *mut u8 } + layout.size() } -unsafe impl GlobalAlloc for KernelAllocator { - unsafe fn alloc(&self, layout: Layout) -> *mut u8 { - // SAFETY: `ptr::null_mut()` is null and `layout` has a non-zero size by the function safety - // requirement. - unsafe { krealloc_aligned(ptr::null_mut(), layout, GFP_KERNEL) } - } +/// # Invariants +/// +/// One of the following: `krealloc`, `vrealloc`, `kvrealloc`. +struct ReallocFunc( + unsafe extern "C" fn(*const crate::ffi::c_void, usize, u32) -> *mut crate::ffi::c_void, +); - unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) { - unsafe { - bindings::kfree(ptr as *const core::ffi::c_void); - } - } +impl ReallocFunc { + // INVARIANT: `krealloc` satisfies the type invariants. + const KREALLOC: Self = Self(bindings::krealloc); - unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 { - // SAFETY: - // - `new_size`, when rounded up to the nearest multiple of `layout.align()`, will not - // overflow `isize` by the function safety requirement. - // - `layout.align()` is a proper alignment (i.e. not zero and must be a power of two). - let layout = unsafe { Layout::from_size_align_unchecked(new_size, layout.align()) }; + // INVARIANT: `vrealloc` satisfies the type invariants. + const VREALLOC: Self = Self(bindings::vrealloc); + + // INVARIANT: `kvrealloc` satisfies the type invariants. + const KVREALLOC: Self = Self(bindings::kvrealloc); + + /// # Safety + /// + /// This method has the same safety requirements as [`Allocator::realloc`]. + /// + /// # Guarantees + /// + /// This method has the same guarantees as `Allocator::realloc`. Additionally + /// - it accepts any pointer to a valid memory allocation allocated by this function. + /// - memory allocated by this function remains valid until it is passed to this function. + unsafe fn call( + &self, + ptr: Option<NonNull<u8>>, + layout: Layout, + old_layout: Layout, + flags: Flags, + ) -> Result<NonNull<[u8]>, AllocError> { + let size = aligned_size(layout); + let ptr = match ptr { + Some(ptr) => { + if old_layout.size() == 0 { + ptr::null() + } else { + ptr.as_ptr() + } + } + None => ptr::null(), + }; // SAFETY: - // - `ptr` is either null or a pointer allocated by this allocator by the function safety - // requirement. - // - the size of `layout` is not zero because `new_size` is not zero by the function safety - // requirement. - unsafe { krealloc_aligned(ptr, layout, GFP_KERNEL) } + // - `self.0` is one of `krealloc`, `vrealloc`, `kvrealloc` and thus only requires that + // `ptr` is NULL or valid. + // - `ptr` is either NULL or valid by the safety requirements of this function. + // + // GUARANTEE: + // - `self.0` is one of `krealloc`, `vrealloc`, `kvrealloc`. + // - Those functions provide the guarantees of this function. + let raw_ptr = unsafe { + // If `size == 0` and `ptr != NULL` the memory behind the pointer is freed. + self.0(ptr.cast(), size, flags.0).cast() + }; + + let ptr = if size == 0 { + crate::alloc::dangling_from_layout(layout) + } else { + NonNull::new(raw_ptr).ok_or(AllocError)? + }; + + Ok(NonNull::slice_from_raw_parts(ptr, size)) + } +} + +// SAFETY: `realloc` delegates to `ReallocFunc::call`, which guarantees that +// - memory remains valid until it is explicitly freed, +// - passing a pointer to a valid memory allocation is OK, +// - `realloc` satisfies the guarantees, since `ReallocFunc::call` has the same. +unsafe impl Allocator for Kmalloc { + #[inline] + unsafe fn realloc( + ptr: Option<NonNull<u8>>, + layout: Layout, + old_layout: Layout, + flags: Flags, + ) -> Result<NonNull<[u8]>, AllocError> { + // SAFETY: `ReallocFunc::call` has the same safety requirements as `Allocator::realloc`. + unsafe { ReallocFunc::KREALLOC.call(ptr, layout, old_layout, flags) } } +} + +// SAFETY: `realloc` delegates to `ReallocFunc::call`, which guarantees that +// - memory remains valid until it is explicitly freed, +// - passing a pointer to a valid memory allocation is OK, +// - `realloc` satisfies the guarantees, since `ReallocFunc::call` has the same. +unsafe impl Allocator for Vmalloc { + #[inline] + unsafe fn realloc( + ptr: Option<NonNull<u8>>, + layout: Layout, + old_layout: Layout, + flags: Flags, + ) -> Result<NonNull<[u8]>, AllocError> { + // TODO: Support alignments larger than PAGE_SIZE. + if layout.align() > bindings::PAGE_SIZE { + pr_warn!("Vmalloc does not support alignments larger than PAGE_SIZE yet.\n"); + return Err(AllocError); + } - unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 { - // SAFETY: `ptr::null_mut()` is null and `layout` has a non-zero size by the function safety - // requirement. - unsafe { krealloc_aligned(ptr::null_mut(), layout, GFP_KERNEL | __GFP_ZERO) } + // SAFETY: If not `None`, `ptr` is guaranteed to point to valid memory, which was previously + // allocated with this `Allocator`. + unsafe { ReallocFunc::VREALLOC.call(ptr, layout, old_layout, flags) } } } -#[global_allocator] -static ALLOCATOR: KernelAllocator = KernelAllocator; +// SAFETY: `realloc` delegates to `ReallocFunc::call`, which guarantees that +// - memory remains valid until it is explicitly freed, +// - passing a pointer to a valid memory allocation is OK, +// - `realloc` satisfies the guarantees, since `ReallocFunc::call` has the same. +unsafe impl Allocator for KVmalloc { + #[inline] + unsafe fn realloc( + ptr: Option<NonNull<u8>>, + layout: Layout, + old_layout: Layout, + flags: Flags, + ) -> Result<NonNull<[u8]>, AllocError> { + // TODO: Support alignments larger than PAGE_SIZE. + if layout.align() > bindings::PAGE_SIZE { + pr_warn!("KVmalloc does not support alignments larger than PAGE_SIZE yet.\n"); + return Err(AllocError); + } -// See <https://github.com/rust-lang/rust/pull/86844>. -#[no_mangle] -static __rust_no_alloc_shim_is_unstable: u8 = 0; + // SAFETY: If not `None`, `ptr` is guaranteed to point to valid memory, which was previously + // allocated with this `Allocator`. + unsafe { ReallocFunc::KVREALLOC.call(ptr, layout, old_layout, flags) } + } +} diff --git a/rust/kernel/alloc/allocator_test.rs b/rust/kernel/alloc/allocator_test.rs new file mode 100644 index 000000000000..e3240d16040b --- /dev/null +++ b/rust/kernel/alloc/allocator_test.rs @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0 + +//! So far the kernel's `Box` and `Vec` types can't be used by userspace test cases, since all users +//! of those types (e.g. `CString`) use kernel allocators for instantiation. +//! +//! In order to allow userspace test cases to make use of such types as well, implement the +//! `Cmalloc` allocator within the allocator_test module and type alias all kernel allocators to +//! `Cmalloc`. The `Cmalloc` allocator uses libc's `realloc()` function as allocator backend. + +#![allow(missing_docs)] + +use super::{flags::*, AllocError, Allocator, Flags}; +use core::alloc::Layout; +use core::cmp; +use core::ptr; +use core::ptr::NonNull; + +/// The userspace allocator based on libc. +pub struct Cmalloc; + +pub type Kmalloc = Cmalloc; +pub type Vmalloc = Kmalloc; +pub type KVmalloc = Kmalloc; + +extern "C" { + #[link_name = "aligned_alloc"] + fn libc_aligned_alloc(align: usize, size: usize) -> *mut crate::ffi::c_void; + + #[link_name = "free"] + fn libc_free(ptr: *mut crate::ffi::c_void); +} + +// SAFETY: +// - memory remains valid until it is explicitly freed, +// - passing a pointer to a valid memory allocation created by this `Allocator` is always OK, +// - `realloc` provides the guarantees as provided in the `# Guarantees` section. +unsafe impl Allocator for Cmalloc { + unsafe fn realloc( + ptr: Option<NonNull<u8>>, + layout: Layout, + old_layout: Layout, + flags: Flags, + ) -> Result<NonNull<[u8]>, AllocError> { + let src = match ptr { + Some(src) => { + if old_layout.size() == 0 { + ptr::null_mut() + } else { + src.as_ptr() + } + } + None => ptr::null_mut(), + }; + + if layout.size() == 0 { + // SAFETY: `src` is either NULL or was previously allocated with this `Allocator` + unsafe { libc_free(src.cast()) }; + + return Ok(NonNull::slice_from_raw_parts( + crate::alloc::dangling_from_layout(layout), + 0, + )); + } + + // SAFETY: Returns either NULL or a pointer to a memory allocation that satisfies or + // exceeds the given size and alignment requirements. + let dst = unsafe { libc_aligned_alloc(layout.align(), layout.size()) } as *mut u8; + let dst = NonNull::new(dst).ok_or(AllocError)?; + + if flags.contains(__GFP_ZERO) { + // SAFETY: The preceding calls to `libc_aligned_alloc` and `NonNull::new` + // guarantee that `dst` points to memory of at least `layout.size()` bytes. + unsafe { dst.as_ptr().write_bytes(0, layout.size()) }; + } + + if !src.is_null() { + // SAFETY: + // - `src` has previously been allocated with this `Allocator`; `dst` has just been + // newly allocated, hence the memory regions do not overlap. + // - both` src` and `dst` are properly aligned and valid for reads and writes + unsafe { + ptr::copy_nonoverlapping( + src, + dst.as_ptr(), + cmp::min(layout.size(), old_layout.size()), + ) + }; + } + + // SAFETY: `src` is either NULL or was previously allocated with this `Allocator` + unsafe { libc_free(src.cast()) }; + + Ok(NonNull::slice_from_raw_parts(dst, layout.size())) + } +} diff --git a/rust/kernel/alloc/box_ext.rs b/rust/kernel/alloc/box_ext.rs deleted file mode 100644 index 7009ad78d4e0..000000000000 --- a/rust/kernel/alloc/box_ext.rs +++ /dev/null @@ -1,89 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 - -//! Extensions to [`Box`] for fallible allocations. - -use super::{AllocError, Flags}; -use alloc::boxed::Box; -use core::{mem::MaybeUninit, ptr, result::Result}; - -/// Extensions to [`Box`]. -pub trait BoxExt<T>: Sized { - /// Allocates a new box. - /// - /// The allocation may fail, in which case an error is returned. - fn new(x: T, flags: Flags) -> Result<Self, AllocError>; - - /// Allocates a new uninitialised box. - /// - /// The allocation may fail, in which case an error is returned. - fn new_uninit(flags: Flags) -> Result<Box<MaybeUninit<T>>, AllocError>; - - /// Drops the contents, but keeps the allocation. - /// - /// # Examples - /// - /// ``` - /// use kernel::alloc::{flags, box_ext::BoxExt}; - /// let value = Box::new([0; 32], flags::GFP_KERNEL)?; - /// assert_eq!(*value, [0; 32]); - /// let mut value = Box::drop_contents(value); - /// // Now we can re-use `value`: - /// value.write([1; 32]); - /// // SAFETY: We just wrote to it. - /// let value = unsafe { value.assume_init() }; - /// assert_eq!(*value, [1; 32]); - /// # Ok::<(), Error>(()) - /// ``` - fn drop_contents(this: Self) -> Box<MaybeUninit<T>>; -} - -impl<T> BoxExt<T> for Box<T> { - fn new(x: T, flags: Flags) -> Result<Self, AllocError> { - let mut b = <Self as BoxExt<_>>::new_uninit(flags)?; - b.write(x); - // SAFETY: We just wrote to it. - Ok(unsafe { b.assume_init() }) - } - - #[cfg(any(test, testlib))] - fn new_uninit(_flags: Flags) -> Result<Box<MaybeUninit<T>>, AllocError> { - Ok(Box::new_uninit()) - } - - #[cfg(not(any(test, testlib)))] - fn new_uninit(flags: Flags) -> Result<Box<MaybeUninit<T>>, AllocError> { - let ptr = if core::mem::size_of::<MaybeUninit<T>>() == 0 { - core::ptr::NonNull::<_>::dangling().as_ptr() - } else { - let layout = core::alloc::Layout::new::<MaybeUninit<T>>(); - - // SAFETY: Memory is being allocated (first arg is null). The only other source of - // safety issues is sleeping on atomic context, which is addressed by klint. Lastly, - // the type is not a SZT (checked above). - let ptr = - unsafe { super::allocator::krealloc_aligned(core::ptr::null_mut(), layout, flags) }; - if ptr.is_null() { - return Err(AllocError); - } - - ptr.cast::<MaybeUninit<T>>() - }; - - // SAFETY: For non-zero-sized types, we allocate above using the global allocator. For - // zero-sized types, we use `NonNull::dangling`. - Ok(unsafe { Box::from_raw(ptr) }) - } - - fn drop_contents(this: Self) -> Box<MaybeUninit<T>> { - let ptr = Box::into_raw(this); - // SAFETY: `ptr` is valid, because it came from `Box::into_raw`. - unsafe { ptr::drop_in_place(ptr) }; - - // CAST: `MaybeUninit<T>` is a transparent wrapper of `T`. - let ptr = ptr.cast::<MaybeUninit<T>>(); - - // SAFETY: `ptr` is valid for writes, because it came from `Box::into_raw` and it is valid for - // reads, since the pointer came from `Box::into_raw` and the type is `MaybeUninit<T>`. - unsafe { Box::from_raw(ptr) } - } -} diff --git a/rust/kernel/alloc/kbox.rs b/rust/kernel/alloc/kbox.rs new file mode 100644 index 000000000000..9ce414361c2c --- /dev/null +++ b/rust/kernel/alloc/kbox.rs @@ -0,0 +1,456 @@ +// SPDX-License-Identifier: GPL-2.0 + +//! Implementation of [`Box`]. + +#[allow(unused_imports)] // Used in doc comments. +use super::allocator::{KVmalloc, Kmalloc, Vmalloc}; +use super::{AllocError, Allocator, Flags}; +use core::alloc::Layout; +use core::fmt; +use core::marker::PhantomData; +use core::mem::ManuallyDrop; +use core::mem::MaybeUninit; +use core::ops::{Deref, DerefMut}; +use core::pin::Pin; +use core::ptr::NonNull; +use core::result::Result; + +use crate::init::{InPlaceInit, InPlaceWrite, Init, PinInit}; +use crate::types::ForeignOwnable; + +/// The kernel's [`Box`] type -- a heap allocation for a single value of type `T`. +/// +/// This is the kernel's version of the Rust stdlib's `Box`. There are several differences, +/// for example no `noalias` attribute is emitted and partially moving out of a `Box` is not +/// supported. There are also several API differences, e.g. `Box` always requires an [`Allocator`] +/// implementation to be passed as generic, page [`Flags`] when allocating memory and all functions +/// that may allocate memory are fallible. +/// +/// `Box` works with any of the kernel's allocators, e.g. [`Kmalloc`], [`Vmalloc`] or [`KVmalloc`]. +/// There are aliases for `Box` with these allocators ([`KBox`], [`VBox`], [`KVBox`]). +/// +/// When dropping a [`Box`], the value is also dropped and the heap memory is automatically freed. +/// +/// # Examples +/// +/// ``` +/// let b = KBox::<u64>::new(24_u64, GFP_KERNEL)?; +/// +/// assert_eq!(*b, 24_u64); +/// # Ok::<(), Error>(()) +/// ``` +/// +/// ``` +/// # use kernel::bindings; +/// const SIZE: usize = bindings::KMALLOC_MAX_SIZE as usize + 1; +/// struct Huge([u8; SIZE]); +/// +/// assert!(KBox::<Huge>::new_uninit(GFP_KERNEL | __GFP_NOWARN).is_err()); +/// ``` +/// +/// ``` +/// # use kernel::bindings; +/// const SIZE: usize = bindings::KMALLOC_MAX_SIZE as usize + 1; +/// struct Huge([u8; SIZE]); +/// +/// assert!(KVBox::<Huge>::new_uninit(GFP_KERNEL).is_ok()); +/// ``` +/// +/// # Invariants +/// +/// `self.0` is always properly aligned and either points to memory allocated with `A` or, for +/// zero-sized types, is a dangling, well aligned pointer. +#[repr(transparent)] +pub struct Box<T: ?Sized, A: Allocator>(NonNull<T>, PhantomData<A>); + +/// Type alias for [`Box`] with a [`Kmalloc`] allocator. +/// +/// # Examples +/// +/// ``` +/// let b = KBox::new(24_u64, GFP_KERNEL)?; +/// +/// assert_eq!(*b, 24_u64); +/// # Ok::<(), Error>(()) +/// ``` +pub type KBox<T> = Box<T, super::allocator::Kmalloc>; + +/// Type alias for [`Box`] with a [`Vmalloc`] allocator. +/// +/// # Examples +/// +/// ``` +/// let b = VBox::new(24_u64, GFP_KERNEL)?; +/// +/// assert_eq!(*b, 24_u64); +/// # Ok::<(), Error>(()) +/// ``` +pub type VBox<T> = Box<T, super::allocator::Vmalloc>; + +/// Type alias for [`Box`] with a [`KVmalloc`] allocator. +/// +/// # Examples +/// +/// ``` +/// let b = KVBox::new(24_u64, GFP_KERNEL)?; +/// +/// assert_eq!(*b, 24_u64); +/// # Ok::<(), Error>(()) +/// ``` +pub type KVBox<T> = Box<T, super::allocator::KVmalloc>; + +// SAFETY: `Box` is `Send` if `T` is `Send` because the `Box` owns a `T`. +unsafe impl<T, A> Send for Box<T, A> +where + T: Send + ?Sized, + A: Allocator, +{ +} + +// SAFETY: `Box` is `Sync` if `T` is `Sync` because the `Box` owns a `T`. +unsafe impl<T, A> Sync for Box<T, A> +where + T: Sync + ?Sized, + A: Allocator, +{ +} + +impl<T, A> Box<T, A> +where + T: ?Sized, + A: Allocator, +{ + /// Creates a new `Box<T, A>` from a raw pointer. + /// + /// # Safety + /// + /// For non-ZSTs, `raw` must point at an allocation allocated with `A` that is sufficiently + /// aligned for and holds a valid `T`. The caller passes ownership of the allocation to the + /// `Box`. + /// + /// For ZSTs, `raw` must be a dangling, well aligned pointer. + #[inline] + pub const unsafe fn from_raw(raw: *mut T) -> Self { + // INVARIANT: Validity of `raw` is guaranteed by the safety preconditions of this function. + // SAFETY: By the safety preconditions of this function, `raw` is not a NULL pointer. + Self(unsafe { NonNull::new_unchecked(raw) }, PhantomData) + } + + /// Consumes the `Box<T, A>` and returns a raw pointer. + /// + /// This will not run the destructor of `T` and for non-ZSTs the allocation will stay alive + /// indefinitely. Use [`Box::from_raw`] to recover the [`Box`], drop the value and free the + /// allocation, if any. + /// + /// # Examples + /// + /// ``` + /// let x = KBox::new(24, GFP_KERNEL)?; + /// let ptr = KBox::into_raw(x); + /// // SAFETY: `ptr` comes from a previous call to `KBox::into_raw`. + /// let x = unsafe { KBox::from_raw(ptr) }; + /// + /// assert_eq!(*x, 24); + /// # Ok::<(), Error>(()) + /// ``` + #[inline] + pub fn into_raw(b: Self) -> *mut T { + ManuallyDrop::new(b).0.as_ptr() + } + + /// Consumes and leaks the `Box<T, A>` and returns a mutable reference. + /// + /// See [`Box::into_raw`] for more details. + #[inline] + pub fn leak<'a>(b: Self) -> &'a mut T { + // SAFETY: `Box::into_raw` always returns a properly aligned and dereferenceable pointer + // which points to an initialized instance of `T`. + unsafe { &mut *Box::into_raw(b) } + } +} + +impl<T, A> Box<MaybeUninit<T>, A> +where + A: Allocator, +{ + /// Converts a `Box<MaybeUninit<T>, A>` to a `Box<T, A>`. + /// + /// It is undefined behavior to call this function while the value inside of `b` is not yet + /// fully initialized. + /// + /// # Safety + /// + /// Callers must ensure that the value inside of `b` is in an initialized state. + pub unsafe fn assume_init(self) -> Box<T, A> { + let raw = Self::into_raw(self); + + // SAFETY: `raw` comes from a previous call to `Box::into_raw`. By the safety requirements + // of this function, the value inside the `Box` is in an initialized state. Hence, it is + // safe to reconstruct the `Box` as `Box<T, A>`. + unsafe { Box::from_raw(raw.cast()) } + } + + /// Writes the value and converts to `Box<T, A>`. + pub fn write(mut self, value: T) -> Box<T, A> { + (*self).write(value); + + // SAFETY: We've just initialized `b`'s value. + unsafe { self.assume_init() } + } +} + +impl<T, A> Box<T, A> +where + A: Allocator, +{ + /// Creates a new `Box<T, A>` and initializes its contents with `x`. + /// + /// New memory is allocated with `A`. The allocation may fail, in which case an error is + /// returned. For ZSTs no memory is allocated. + pub fn new(x: T, flags: Flags) -> Result<Self, AllocError> { + let b = Self::new_uninit(flags)?; + Ok(Box::write(b, x)) + } + + /// Creates a new `Box<T, A>` with uninitialized contents. + /// + /// New memory is allocated with `A`. The allocation may fail, in which case an error is + /// returned. For ZSTs no memory is allocated. + /// + /// # Examples + /// + /// ``` + /// let b = KBox::<u64>::new_uninit(GFP_KERNEL)?; + /// let b = KBox::write(b, 24); + /// + /// assert_eq!(*b, 24_u64); + /// # Ok::<(), Error>(()) + /// ``` + pub fn new_uninit(flags: Flags) -> Result<Box<MaybeUninit<T>, A>, AllocError> { + let layout = Layout::new::<MaybeUninit<T>>(); + let ptr = A::alloc(layout, flags)?; + + // INVARIANT: `ptr` is either a dangling pointer or points to memory allocated with `A`, + // which is sufficient in size and alignment for storing a `T`. + Ok(Box(ptr.cast(), PhantomData)) + } + + /// Constructs a new `Pin<Box<T, A>>`. If `T` does not implement [`Unpin`], then `x` will be + /// pinned in memory and can't be moved. + #[inline] + pub fn pin(x: T, flags: Flags) -> Result<Pin<Box<T, A>>, AllocError> + where + A: 'static, + { + Ok(Self::new(x, flags)?.into()) + } + + /// Forgets the contents (does not run the destructor), but keeps the allocation. + fn forget_contents(this: Self) -> Box<MaybeUninit<T>, A> { + let ptr = Self::into_raw(this); + + // SAFETY: `ptr` is valid, because it came from `Box::into_raw`. + unsafe { Box::from_raw(ptr.cast()) } + } + + /// Drops the contents, but keeps the allocation. + /// + /// # Examples + /// + /// ``` + /// let value = KBox::new([0; 32], GFP_KERNEL)?; + /// assert_eq!(*value, [0; 32]); + /// let value = KBox::drop_contents(value); + /// // Now we can re-use `value`: + /// let value = KBox::write(value, [1; 32]); + /// assert_eq!(*value, [1; 32]); + /// # Ok::<(), Error>(()) + /// ``` + pub fn drop_contents(this: Self) -> Box<MaybeUninit<T>, A> { + let ptr = this.0.as_ptr(); + + // SAFETY: `ptr` is valid, because it came from `this`. After this call we never access the + // value stored in `this` again. + unsafe { core::ptr::drop_in_place(ptr) }; + + Self::forget_contents(this) + } + + /// Moves the `Box`'s value out of the `Box` and consumes the `Box`. + pub fn into_inner(b: Self) -> T { + // SAFETY: By the type invariant `&*b` is valid for `read`. + let value = unsafe { core::ptr::read(&*b) }; + let _ = Self::forget_contents(b); + value + } +} + +impl<T, A> From<Box<T, A>> for Pin<Box<T, A>> +where + T: ?Sized, + A: Allocator, +{ + /// Converts a `Box<T, A>` into a `Pin<Box<T, A>>`. If `T` does not implement [`Unpin`], then + /// `*b` will be pinned in memory and can't be moved. + /// + /// This moves `b` into `Pin` without moving `*b` or allocating and copying any memory. + fn from(b: Box<T, A>) -> Self { + // SAFETY: The value wrapped inside a `Pin<Box<T, A>>` cannot be moved or replaced as long + // as `T` does not implement `Unpin`. + unsafe { Pin::new_unchecked(b) } + } +} + +impl<T, A> InPlaceWrite<T> for Box<MaybeUninit<T>, A> +where + A: Allocator + 'static, +{ + type Initialized = Box<T, A>; + + fn write_init<E>(mut self, init: impl Init<T, E>) -> Result<Self::Initialized, E> { + let slot = self.as_mut_ptr(); + // SAFETY: When init errors/panics, slot will get deallocated but not dropped, + // slot is valid. + unsafe { init.__init(slot)? }; + // SAFETY: All fields have been initialized. + Ok(unsafe { Box::assume_init(self) }) + } + + fn write_pin_init<E>(mut self, init: impl PinInit<T, E>) -> Result<Pin<Self::Initialized>, E> { + let slot = self.as_mut_ptr(); + // SAFETY: When init errors/panics, slot will get deallocated but not dropped, + // slot is valid and will not be moved, because we pin it later. + unsafe { init.__pinned_init(slot)? }; + // SAFETY: All fields have been initialized. + Ok(unsafe { Box::assume_init(self) }.into()) + } +} + +impl<T, A> InPlaceInit<T> for Box<T, A> +where + A: Allocator + 'static, +{ + type PinnedSelf = Pin<Self>; + + #[inline] + fn try_pin_init<E>(init: impl PinInit<T, E>, flags: Flags) -> Result<Pin<Self>, E> + where + E: From<AllocError>, + { + Box::<_, A>::new_uninit(flags)?.write_pin_init(init) + } + + #[inline] + fn try_init<E>(init: impl Init<T, E>, flags: Flags) -> Result<Self, E> + where + E: From<AllocError>, + { + Box::<_, A>::new_uninit(flags)?.write_init(init) + } +} + +impl<T: 'static, A> ForeignOwnable for Box<T, A> +where + A: Allocator, +{ + type Borrowed<'a> = &'a T; + + fn into_foreign(self) -> *const crate::ffi::c_void { + Box::into_raw(self) as _ + } + + unsafe fn from_foreign(ptr: *const crate::ffi::c_void) -> Self { + // SAFETY: The safety requirements of this function ensure that `ptr` comes from a previous + // call to `Self::into_foreign`. + unsafe { Box::from_raw(ptr as _) } + } + + unsafe fn borrow<'a>(ptr: *const crate::ffi::c_void) -> &'a T { + // SAFETY: The safety requirements of this method ensure that the object remains alive and + // immutable for the duration of 'a. + unsafe { &*ptr.cast() } + } +} + +impl<T: 'static, A> ForeignOwnable for Pin<Box<T, A>> +where + A: Allocator, +{ + type Borrowed<'a> = Pin<&'a T>; + + fn into_foreign(self) -> *const crate::ffi::c_void { + // SAFETY: We are still treating the box as pinned. + Box::into_raw(unsafe { Pin::into_inner_unchecked(self) }) as _ + } + + unsafe fn from_foreign(ptr: *const crate::ffi::c_void) -> Self { + // SAFETY: The safety requirements of this function ensure that `ptr` comes from a previous + // call to `Self::into_foreign`. + unsafe { Pin::new_unchecked(Box::from_raw(ptr as _)) } + } + + unsafe fn borrow<'a>(ptr: *const crate::ffi::c_void) -> Pin<&'a T> { + // SAFETY: The safety requirements for this function ensure that the object is still alive, + // so it is safe to dereference the raw pointer. + // The safety requirements of `from_foreign` also ensure that the object remains alive for + // the lifetime of the returned value. + let r = unsafe { &*ptr.cast() }; + + // SAFETY: This pointer originates from a `Pin<Box<T>>`. + unsafe { Pin::new_unchecked(r) } + } +} + +impl<T, A> Deref for Box<T, A> +where + T: ?Sized, + A: Allocator, +{ + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: `self.0` is always properly aligned, dereferenceable and points to an initialized + // instance of `T`. + unsafe { self.0.as_ref() } + } +} + +impl<T, A> DerefMut for Box<T, A> +where + T: ?Sized, + A: Allocator, +{ + fn deref_mut(&mut self) -> &mut T { + // SAFETY: `self.0` is always properly aligned, dereferenceable and points to an initialized + // instance of `T`. + unsafe { self.0.as_mut() } + } +} + +impl<T, A> fmt::Debug for Box<T, A> +where + T: ?Sized + fmt::Debug, + A: Allocator, +{ + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Debug::fmt(&**self, f) + } +} + +impl<T, A> Drop for Box<T, A> +where + T: ?Sized, + A: Allocator, +{ + fn drop(&mut self) { + let layout = Layout::for_value::<T>(self); + + // SAFETY: The pointer in `self.0` is guaranteed to be valid by the type invariant. + unsafe { core::ptr::drop_in_place::<T>(self.deref_mut()) }; + + // SAFETY: + // - `self.0` was previously allocated with `A`. + // - `layout` is equal to the `Layout´ `self.0` was allocated with. + unsafe { A::free(self.0.cast(), layout) }; + } +} diff --git a/rust/kernel/alloc/kvec.rs b/rust/kernel/alloc/kvec.rs new file mode 100644 index 000000000000..ae9d072741ce --- /dev/null +++ b/rust/kernel/alloc/kvec.rs @@ -0,0 +1,913 @@ +// SPDX-License-Identifier: GPL-2.0 + +//! Implementation of [`Vec`]. + +use super::{ + allocator::{KVmalloc, Kmalloc, Vmalloc}, + layout::ArrayLayout, + AllocError, Allocator, Box, Flags, +}; +use core::{ + fmt, + marker::PhantomData, + mem::{ManuallyDrop, MaybeUninit}, + ops::Deref, + ops::DerefMut, + ops::Index, + ops::IndexMut, + ptr, + ptr::NonNull, + slice, + slice::SliceIndex, +}; + +/// Create a [`KVec`] containing the arguments. +/// +/// New memory is allocated with `GFP_KERNEL`. +/// +/// # Examples +/// +/// ``` +/// let mut v = kernel::kvec![]; +/// v.push(1, GFP_KERNEL)?; +/// assert_eq!(v, [1]); +/// +/// let mut v = kernel::kvec![1; 3]?; +/// v.push(4, GFP_KERNEL)?; +/// assert_eq!(v, [1, 1, 1, 4]); +/// +/// let mut v = kernel::kvec![1, 2, 3]?; +/// v.push(4, GFP_KERNEL)?; +/// assert_eq!(v, [1, 2, 3, 4]); +/// +/// # Ok::<(), Error>(()) +/// ``` +#[macro_export] +macro_rules! kvec { + () => ( + $crate::alloc::KVec::new() + ); + ($elem:expr; $n:expr) => ( + $crate::alloc::KVec::from_elem($elem, $n, GFP_KERNEL) + ); + ($($x:expr),+ $(,)?) => ( + match $crate::alloc::KBox::new_uninit(GFP_KERNEL) { + Ok(b) => Ok($crate::alloc::KVec::from($crate::alloc::KBox::write(b, [$($x),+]))), + Err(e) => Err(e), + } + ); +} + +/// The kernel's [`Vec`] type. +/// +/// A contiguous growable array type with contents allocated with the kernel's allocators (e.g. +/// [`Kmalloc`], [`Vmalloc`] or [`KVmalloc`]), written `Vec<T, A>`. +/// +/// For non-zero-sized values, a [`Vec`] will use the given allocator `A` for its allocation. For +/// the most common allocators the type aliases [`KVec`], [`VVec`] and [`KVVec`] exist. +/// +/// For zero-sized types the [`Vec`]'s pointer must be `dangling_mut::<T>`; no memory is allocated. +/// +/// Generally, [`Vec`] consists of a pointer that represents the vector's backing buffer, the +/// capacity of the vector (the number of elements that currently fit into the vector), its length +/// (the number of elements that are currently stored in the vector) and the `Allocator` type used +/// to allocate (and free) the backing buffer. +/// +/// A [`Vec`] can be deconstructed into and (re-)constructed from its previously named raw parts +/// and manually modified. +/// +/// [`Vec`]'s backing buffer gets, if required, automatically increased (re-allocated) when elements +/// are added to the vector. +/// +/// # Invariants +/// +/// - `self.ptr` is always properly aligned and either points to memory allocated with `A` or, for +/// zero-sized types, is a dangling, well aligned pointer. +/// +/// - `self.len` always represents the exact number of elements stored in the vector. +/// +/// - `self.layout` represents the absolute number of elements that can be stored within the vector +/// without re-allocation. For ZSTs `self.layout`'s capacity is zero. However, it is legal for the +/// backing buffer to be larger than `layout`. +/// +/// - The `Allocator` type `A` of the vector is the exact same `Allocator` type the backing buffer +/// was allocated with (and must be freed with). +pub struct Vec<T, A: Allocator> { + ptr: NonNull<T>, + /// Represents the actual buffer size as `cap` times `size_of::<T>` bytes. + /// + /// Note: This isn't quite the same as `Self::capacity`, which in contrast returns the number of + /// elements we can still store without reallocating. + layout: ArrayLayout<T>, + len: usize, + _p: PhantomData<A>, +} + +/// Type alias for [`Vec`] with a [`Kmalloc`] allocator. +/// +/// # Examples +/// +/// ``` +/// let mut v = KVec::new(); +/// v.push(1, GFP_KERNEL)?; +/// assert_eq!(&v, &[1]); +/// +/// # Ok::<(), Error>(()) +/// ``` +pub type KVec<T> = Vec<T, Kmalloc>; + +/// Type alias for [`Vec`] with a [`Vmalloc`] allocator. +/// +/// # Examples +/// +/// ``` +/// let mut v = VVec::new(); +/// v.push(1, GFP_KERNEL)?; +/// assert_eq!(&v, &[1]); +/// +/// # Ok::<(), Error>(()) +/// ``` +pub type VVec<T> = Vec<T, Vmalloc>; + +/// Type alias for [`Vec`] with a [`KVmalloc`] allocator. +/// +/// # Examples +/// +/// ``` +/// let mut v = KVVec::new(); +/// v.push(1, GFP_KERNEL)?; +/// assert_eq!(&v, &[1]); +/// +/// # Ok::<(), Error>(()) +/// ``` +pub type KVVec<T> = Vec<T, KVmalloc>; + +// SAFETY: `Vec` is `Send` if `T` is `Send` because `Vec` owns its elements. +unsafe impl<T, A> Send for Vec<T, A> +where + T: Send, + A: Allocator, +{ +} + +// SAFETY: `Vec` is `Sync` if `T` is `Sync` because `Vec` owns its elements. +unsafe impl<T, A> Sync for Vec<T, A> +where + T: Sync, + A: Allocator, +{ +} + +impl<T, A> Vec<T, A> +where + A: Allocator, +{ + #[inline] + const fn is_zst() -> bool { + core::mem::size_of::<T>() == 0 + } + + /// Returns the number of elements that can be stored within the vector without allocating + /// additional memory. + pub fn capacity(&self) -> usize { + if const { Self::is_zst() } { + usize::MAX + } else { + self.layout.len() + } + } + + /// Returns the number of elements stored within the vector. + #[inline] + pub fn len(&self) -> usize { + self.len + } + + /// Forcefully sets `self.len` to `new_len`. + /// + /// # Safety + /// + /// - `new_len` must be less than or equal to [`Self::capacity`]. + /// - If `new_len` is greater than `self.len`, all elements within the interval + /// [`self.len`,`new_len`) must be initialized. + #[inline] + pub unsafe fn set_len(&mut self, new_len: usize) { + debug_assert!(new_len <= self.capacity()); + self.len = new_len; + } + + /// Returns a slice of the entire vector. + #[inline] + pub fn as_slice(&self) -> &[T] { + self + } + + /// Returns a mutable slice of the entire vector. + #[inline] + pub fn as_mut_slice(&mut self) -> &mut [T] { + self + } + + /// Returns a mutable raw pointer to the vector's backing buffer, or, if `T` is a ZST, a + /// dangling raw pointer. + #[inline] + pub fn as_mut_ptr(&mut self) -> *mut T { + self.ptr.as_ptr() + } + + /// Returns a raw pointer to the vector's backing buffer, or, if `T` is a ZST, a dangling raw + /// pointer. + #[inline] + pub fn as_ptr(&self) -> *const T { + self.ptr.as_ptr() + } + + /// Returns `true` if the vector contains no elements, `false` otherwise. + /// + /// # Examples + /// + /// ``` + /// let mut v = KVec::new(); + /// assert!(v.is_empty()); + /// + /// v.push(1, GFP_KERNEL); + /// assert!(!v.is_empty()); + /// ``` + #[inline] + pub fn is_empty(&self) -> bool { + self.len() == 0 + } + + /// Creates a new, empty `Vec<T, A>`. + /// + /// This method does not allocate by itself. + #[inline] + pub const fn new() -> Self { + // INVARIANT: Since this is a new, empty `Vec` with no backing memory yet, + // - `ptr` is a properly aligned dangling pointer for type `T`, + // - `layout` is an empty `ArrayLayout` (zero capacity) + // - `len` is zero, since no elements can be or have been stored, + // - `A` is always valid. + Self { + ptr: NonNull::dangling(), + layout: ArrayLayout::empty(), + len: 0, + _p: PhantomData::<A>, + } + } + + /// Returns a slice of `MaybeUninit<T>` for the remaining spare capacity of the vector. + pub fn spare_capacity_mut(&mut self) -> &mut [MaybeUninit<T>] { + // SAFETY: + // - `self.len` is smaller than `self.capacity` and hence, the resulting pointer is + // guaranteed to be part of the same allocated object. + // - `self.len` can not overflow `isize`. + let ptr = unsafe { self.as_mut_ptr().add(self.len) } as *mut MaybeUninit<T>; + + // SAFETY: The memory between `self.len` and `self.capacity` is guaranteed to be allocated + // and valid, but uninitialized. + unsafe { slice::from_raw_parts_mut(ptr, self.capacity() - self.len) } + } + + /// Appends an element to the back of the [`Vec`] instance. + /// + /// # Examples + /// + /// ``` + /// let mut v = KVec::new(); + /// v.push(1, GFP_KERNEL)?; + /// assert_eq!(&v, &[1]); + /// + /// v.push(2, GFP_KERNEL)?; + /// assert_eq!(&v, &[1, 2]); + /// # Ok::<(), Error>(()) + /// ``` + pub fn push(&mut self, v: T, flags: Flags) -> Result<(), AllocError> { + self.reserve(1, flags)?; + + // SAFETY: + // - `self.len` is smaller than `self.capacity` and hence, the resulting pointer is + // guaranteed to be part of the same allocated object. + // - `self.len` can not overflow `isize`. + let ptr = unsafe { self.as_mut_ptr().add(self.len) }; + + // SAFETY: + // - `ptr` is properly aligned and valid for writes. + unsafe { core::ptr::write(ptr, v) }; + + // SAFETY: We just initialised the first spare entry, so it is safe to increase the length + // by 1. We also know that the new length is <= capacity because of the previous call to + // `reserve` above. + unsafe { self.set_len(self.len() + 1) }; + Ok(()) + } + + /// Creates a new [`Vec`] instance with at least the given capacity. + /// + /// # Examples + /// + /// ``` + /// let v = KVec::<u32>::with_capacity(20, GFP_KERNEL)?; + /// + /// assert!(v.capacity() >= 20); + /// # Ok::<(), Error>(()) + /// ``` + pub fn with_capacity(capacity: usize, flags: Flags) -> Result<Self, AllocError> { + let mut v = Vec::new(); + + v.reserve(capacity, flags)?; + + Ok(v) + } + + /// Creates a `Vec<T, A>` from a pointer, a length and a capacity using the allocator `A`. + /// + /// # Examples + /// + /// ``` + /// let mut v = kernel::kvec![1, 2, 3]?; + /// v.reserve(1, GFP_KERNEL)?; + /// + /// let (mut ptr, mut len, cap) = v.into_raw_parts(); + /// + /// // SAFETY: We've just reserved memory for another element. + /// unsafe { ptr.add(len).write(4) }; + /// len += 1; + /// + /// // SAFETY: We only wrote an additional element at the end of the `KVec`'s buffer and + /// // correspondingly increased the length of the `KVec` by one. Otherwise, we construct it + /// // from the exact same raw parts. + /// let v = unsafe { KVec::from_raw_parts(ptr, len, cap) }; + /// + /// assert_eq!(v, [1, 2, 3, 4]); + /// + /// # Ok::<(), Error>(()) + /// ``` + /// + /// # Safety + /// + /// If `T` is a ZST: + /// + /// - `ptr` must be a dangling, well aligned pointer. + /// + /// Otherwise: + /// + /// - `ptr` must have been allocated with the allocator `A`. + /// - `ptr` must satisfy or exceed the alignment requirements of `T`. + /// - `ptr` must point to memory with a size of at least `size_of::<T>() * capacity` bytes. + /// - The allocated size in bytes must not be larger than `isize::MAX`. + /// - `length` must be less than or equal to `capacity`. + /// - The first `length` elements must be initialized values of type `T`. + /// + /// It is also valid to create an empty `Vec` passing a dangling pointer for `ptr` and zero for + /// `cap` and `len`. + pub unsafe fn from_raw_parts(ptr: *mut T, length: usize, capacity: usize) -> Self { + let layout = if Self::is_zst() { + ArrayLayout::empty() + } else { + // SAFETY: By the safety requirements of this function, `capacity * size_of::<T>()` is + // smaller than `isize::MAX`. + unsafe { ArrayLayout::new_unchecked(capacity) } + }; + + // INVARIANT: For ZSTs, we store an empty `ArrayLayout`, all other type invariants are + // covered by the safety requirements of this function. + Self { + // SAFETY: By the safety requirements, `ptr` is either dangling or pointing to a valid + // memory allocation, allocated with `A`. + ptr: unsafe { NonNull::new_unchecked(ptr) }, + layout, + len: length, + _p: PhantomData::<A>, + } + } + + /// Consumes the `Vec<T, A>` and returns its raw components `pointer`, `length` and `capacity`. + /// + /// This will not run the destructor of the contained elements and for non-ZSTs the allocation + /// will stay alive indefinitely. Use [`Vec::from_raw_parts`] to recover the [`Vec`], drop the + /// elements and free the allocation, if any. + pub fn into_raw_parts(self) -> (*mut T, usize, usize) { + let mut me = ManuallyDrop::new(self); + let len = me.len(); + let capacity = me.capacity(); + let ptr = me.as_mut_ptr(); + (ptr, len, capacity) + } + + /// Ensures that the capacity exceeds the length by at least `additional` elements. + /// + /// # Examples + /// + /// ``` + /// let mut v = KVec::new(); + /// v.push(1, GFP_KERNEL)?; + /// + /// v.reserve(10, GFP_KERNEL)?; + /// let cap = v.capacity(); + /// assert!(cap >= 10); + /// + /// v.reserve(10, GFP_KERNEL)?; + /// let new_cap = v.capacity(); + /// assert_eq!(new_cap, cap); + /// + /// # Ok::<(), Error>(()) + /// ``` + pub fn reserve(&mut self, additional: usize, flags: Flags) -> Result<(), AllocError> { + let len = self.len(); + let cap = self.capacity(); + + if cap - len >= additional { + return Ok(()); + } + + if Self::is_zst() { + // The capacity is already `usize::MAX` for ZSTs, we can't go higher. + return Err(AllocError); + } + + // We know that `cap <= isize::MAX` because of the type invariants of `Self`. So the + // multiplication by two won't overflow. + let new_cap = core::cmp::max(cap * 2, len.checked_add(additional).ok_or(AllocError)?); + let layout = ArrayLayout::new(new_cap).map_err(|_| AllocError)?; + + // SAFETY: + // - `ptr` is valid because it's either `None` or comes from a previous call to + // `A::realloc`. + // - `self.layout` matches the `ArrayLayout` of the preceding allocation. + let ptr = unsafe { + A::realloc( + Some(self.ptr.cast()), + layout.into(), + self.layout.into(), + flags, + )? + }; + + // INVARIANT: + // - `layout` is some `ArrayLayout::<T>`, + // - `ptr` has been created by `A::realloc` from `layout`. + self.ptr = ptr.cast(); + self.layout = layout; + + Ok(()) + } +} + +impl<T: Clone, A: Allocator> Vec<T, A> { + /// Extend the vector by `n` clones of `value`. + pub fn extend_with(&mut self, n: usize, value: T, flags: Flags) -> Result<(), AllocError> { + if n == 0 { + return Ok(()); + } + + self.reserve(n, flags)?; + + let spare = self.spare_capacity_mut(); + + for item in spare.iter_mut().take(n - 1) { + item.write(value.clone()); + } + + // We can write the last element directly without cloning needlessly. + spare[n - 1].write(value); + + // SAFETY: + // - `self.len() + n < self.capacity()` due to the call to reserve above, + // - the loop and the line above initialized the next `n` elements. + unsafe { self.set_len(self.len() + n) }; + + Ok(()) + } + + /// Pushes clones of the elements of slice into the [`Vec`] instance. + /// + /// # Examples + /// + /// ``` + /// let mut v = KVec::new(); + /// v.push(1, GFP_KERNEL)?; + /// + /// v.extend_from_slice(&[20, 30, 40], GFP_KERNEL)?; + /// assert_eq!(&v, &[1, 20, 30, 40]); + /// + /// v.extend_from_slice(&[50, 60], GFP_KERNEL)?; + /// assert_eq!(&v, &[1, 20, 30, 40, 50, 60]); + /// # Ok::<(), Error>(()) + /// ``` + pub fn extend_from_slice(&mut self, other: &[T], flags: Flags) -> Result<(), AllocError> { + self.reserve(other.len(), flags)?; + for (slot, item) in core::iter::zip(self.spare_capacity_mut(), other) { + slot.write(item.clone()); + } + + // SAFETY: + // - `other.len()` spare entries have just been initialized, so it is safe to increase + // the length by the same number. + // - `self.len() + other.len() <= self.capacity()` is guaranteed by the preceding `reserve` + // call. + unsafe { self.set_len(self.len() + other.len()) }; + Ok(()) + } + + /// Create a new `Vec<T, A>` and extend it by `n` clones of `value`. + pub fn from_elem(value: T, n: usize, flags: Flags) -> Result<Self, AllocError> { + let mut v = Self::with_capacity(n, flags)?; + + v.extend_with(n, value, flags)?; + + Ok(v) + } +} + +impl<T, A> Drop for Vec<T, A> +where + A: Allocator, +{ + fn drop(&mut self) { + // SAFETY: `self.as_mut_ptr` is guaranteed to be valid by the type invariant. + unsafe { + ptr::drop_in_place(core::ptr::slice_from_raw_parts_mut( + self.as_mut_ptr(), + self.len, + )) + }; + + // SAFETY: + // - `self.ptr` was previously allocated with `A`. + // - `self.layout` matches the `ArrayLayout` of the preceding allocation. + unsafe { A::free(self.ptr.cast(), self.layout.into()) }; + } +} + +impl<T, A, const N: usize> From<Box<[T; N], A>> for Vec<T, A> +where + A: Allocator, +{ + fn from(b: Box<[T; N], A>) -> Vec<T, A> { + let len = b.len(); + let ptr = Box::into_raw(b); + + // SAFETY: + // - `b` has been allocated with `A`, + // - `ptr` fulfills the alignment requirements for `T`, + // - `ptr` points to memory with at least a size of `size_of::<T>() * len`, + // - all elements within `b` are initialized values of `T`, + // - `len` does not exceed `isize::MAX`. + unsafe { Vec::from_raw_parts(ptr as _, len, len) } + } +} + +impl<T> Default for KVec<T> { + #[inline] + fn default() -> Self { + Self::new() + } +} + +impl<T: fmt::Debug, A: Allocator> fmt::Debug for Vec<T, A> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Debug::fmt(&**self, f) + } +} + +impl<T, A> Deref for Vec<T, A> +where + A: Allocator, +{ + type Target = [T]; + + #[inline] + fn deref(&self) -> &[T] { + // SAFETY: The memory behind `self.as_ptr()` is guaranteed to contain `self.len` + // initialized elements of type `T`. + unsafe { slice::from_raw_parts(self.as_ptr(), self.len) } + } +} + +impl<T, A> DerefMut for Vec<T, A> +where + A: Allocator, +{ + #[inline] + fn deref_mut(&mut self) -> &mut [T] { + // SAFETY: The memory behind `self.as_ptr()` is guaranteed to contain `self.len` + // initialized elements of type `T`. + unsafe { slice::from_raw_parts_mut(self.as_mut_ptr(), self.len) } + } +} + +impl<T: Eq, A> Eq for Vec<T, A> where A: Allocator {} + +impl<T, I: SliceIndex<[T]>, A> Index<I> for Vec<T, A> +where + A: Allocator, +{ + type Output = I::Output; + + #[inline] + fn index(&self, index: I) -> &Self::Output { + Index::index(&**self, index) + } +} + +impl<T, I: SliceIndex<[T]>, A> IndexMut<I> for Vec<T, A> +where + A: Allocator, +{ + #[inline] + fn index_mut(&mut self, index: I) -> &mut Self::Output { + IndexMut::index_mut(&mut **self, index) + } +} + +macro_rules! impl_slice_eq { + ($([$($vars:tt)*] $lhs:ty, $rhs:ty,)*) => { + $( + impl<T, U, $($vars)*> PartialEq<$rhs> for $lhs + where + T: PartialEq<U>, + { + #[inline] + fn eq(&self, other: &$rhs) -> bool { self[..] == other[..] } + } + )* + } +} + +impl_slice_eq! { + [A1: Allocator, A2: Allocator] Vec<T, A1>, Vec<U, A2>, + [A: Allocator] Vec<T, A>, &[U], + [A: Allocator] Vec<T, A>, &mut [U], + [A: Allocator] &[T], Vec<U, A>, + [A: Allocator] &mut [T], Vec<U, A>, + [A: Allocator] Vec<T, A>, [U], + [A: Allocator] [T], Vec<U, A>, + [A: Allocator, const N: usize] Vec<T, A>, [U; N], + [A: Allocator, const N: usize] Vec<T, A>, &[U; N], +} + +impl<'a, T, A> IntoIterator for &'a Vec<T, A> +where + A: Allocator, +{ + type Item = &'a T; + type IntoIter = slice::Iter<'a, T>; + + fn into_iter(self) -> Self::IntoIter { + self.iter() + } +} + +impl<'a, T, A: Allocator> IntoIterator for &'a mut Vec<T, A> +where + A: Allocator, +{ + type Item = &'a mut T; + type IntoIter = slice::IterMut<'a, T>; + + fn into_iter(self) -> Self::IntoIter { + self.iter_mut() + } +} + +/// An [`Iterator`] implementation for [`Vec`] that moves elements out of a vector. +/// +/// This structure is created by the [`Vec::into_iter`] method on [`Vec`] (provided by the +/// [`IntoIterator`] trait). +/// +/// # Examples +/// +/// ``` +/// let v = kernel::kvec![0, 1, 2]?; +/// let iter = v.into_iter(); +/// +/// # Ok::<(), Error>(()) +/// ``` +pub struct IntoIter<T, A: Allocator> { + ptr: *mut T, + buf: NonNull<T>, + len: usize, + layout: ArrayLayout<T>, + _p: PhantomData<A>, +} + +impl<T, A> IntoIter<T, A> +where + A: Allocator, +{ + fn into_raw_parts(self) -> (*mut T, NonNull<T>, usize, usize) { + let me = ManuallyDrop::new(self); + let ptr = me.ptr; + let buf = me.buf; + let len = me.len; + let cap = me.layout.len(); + (ptr, buf, len, cap) + } + + /// Same as `Iterator::collect` but specialized for `Vec`'s `IntoIter`. + /// + /// # Examples + /// + /// ``` + /// let v = kernel::kvec![1, 2, 3]?; + /// let mut it = v.into_iter(); + /// + /// assert_eq!(it.next(), Some(1)); + /// + /// let v = it.collect(GFP_KERNEL); + /// assert_eq!(v, [2, 3]); + /// + /// # Ok::<(), Error>(()) + /// ``` + /// + /// # Implementation details + /// + /// Currently, we can't implement `FromIterator`. There are a couple of issues with this trait + /// in the kernel, namely: + /// + /// - Rust's specialization feature is unstable. This prevents us to optimize for the special + /// case where `I::IntoIter` equals `Vec`'s `IntoIter` type. + /// - We also can't use `I::IntoIter`'s type ID either to work around this, since `FromIterator` + /// doesn't require this type to be `'static`. + /// - `FromIterator::from_iter` does return `Self` instead of `Result<Self, AllocError>`, hence + /// we can't properly handle allocation failures. + /// - Neither `Iterator::collect` nor `FromIterator::from_iter` can handle additional allocation + /// flags. + /// + /// Instead, provide `IntoIter::collect`, such that we can at least convert a `IntoIter` into a + /// `Vec` again. + /// + /// Note that `IntoIter::collect` doesn't require `Flags`, since it re-uses the existing backing + /// buffer. However, this backing buffer may be shrunk to the actual count of elements. + pub fn collect(self, flags: Flags) -> Vec<T, A> { + let old_layout = self.layout; + let (mut ptr, buf, len, mut cap) = self.into_raw_parts(); + let has_advanced = ptr != buf.as_ptr(); + + if has_advanced { + // Copy the contents we have advanced to at the beginning of the buffer. + // + // SAFETY: + // - `ptr` is valid for reads of `len * size_of::<T>()` bytes, + // - `buf.as_ptr()` is valid for writes of `len * size_of::<T>()` bytes, + // - `ptr` and `buf.as_ptr()` are not be subject to aliasing restrictions relative to + // each other, + // - both `ptr` and `buf.ptr()` are properly aligned. + unsafe { ptr::copy(ptr, buf.as_ptr(), len) }; + ptr = buf.as_ptr(); + + // SAFETY: `len` is guaranteed to be smaller than `self.layout.len()`. + let layout = unsafe { ArrayLayout::<T>::new_unchecked(len) }; + + // SAFETY: `buf` points to the start of the backing buffer and `len` is guaranteed to be + // smaller than `cap`. Depending on `alloc` this operation may shrink the buffer or leaves + // it as it is. + ptr = match unsafe { + A::realloc(Some(buf.cast()), layout.into(), old_layout.into(), flags) + } { + // If we fail to shrink, which likely can't even happen, continue with the existing + // buffer. + Err(_) => ptr, + Ok(ptr) => { + cap = len; + ptr.as_ptr().cast() + } + }; + } + + // SAFETY: If the iterator has been advanced, the advanced elements have been copied to + // the beginning of the buffer and `len` has been adjusted accordingly. + // + // - `ptr` is guaranteed to point to the start of the backing buffer. + // - `cap` is either the original capacity or, after shrinking the buffer, equal to `len`. + // - `alloc` is guaranteed to be unchanged since `into_iter` has been called on the original + // `Vec`. + unsafe { Vec::from_raw_parts(ptr, len, cap) } + } +} + +impl<T, A> Iterator for IntoIter<T, A> +where + A: Allocator, +{ + type Item = T; + + /// # Examples + /// + /// ``` + /// let v = kernel::kvec![1, 2, 3]?; + /// let mut it = v.into_iter(); + /// + /// assert_eq!(it.next(), Some(1)); + /// assert_eq!(it.next(), Some(2)); + /// assert_eq!(it.next(), Some(3)); + /// assert_eq!(it.next(), None); + /// + /// # Ok::<(), Error>(()) + /// ``` + fn next(&mut self) -> Option<T> { + if self.len == 0 { + return None; + } + + let current = self.ptr; + + // SAFETY: We can't overflow; decreasing `self.len` by one every time we advance `self.ptr` + // by one guarantees that. + unsafe { self.ptr = self.ptr.add(1) }; + + self.len -= 1; + + // SAFETY: `current` is guaranteed to point at a valid element within the buffer. + Some(unsafe { current.read() }) + } + + /// # Examples + /// + /// ``` + /// let v: KVec<u32> = kernel::kvec![1, 2, 3]?; + /// let mut iter = v.into_iter(); + /// let size = iter.size_hint().0; + /// + /// iter.next(); + /// assert_eq!(iter.size_hint().0, size - 1); + /// + /// iter.next(); + /// assert_eq!(iter.size_hint().0, size - 2); + /// + /// iter.next(); + /// assert_eq!(iter.size_hint().0, size - 3); + /// + /// # Ok::<(), Error>(()) + /// ``` + fn size_hint(&self) -> (usize, Option<usize>) { + (self.len, Some(self.len)) + } +} + +impl<T, A> Drop for IntoIter<T, A> +where + A: Allocator, +{ + fn drop(&mut self) { + // SAFETY: `self.ptr` is guaranteed to be valid by the type invariant. + unsafe { ptr::drop_in_place(ptr::slice_from_raw_parts_mut(self.ptr, self.len)) }; + + // SAFETY: + // - `self.buf` was previously allocated with `A`. + // - `self.layout` matches the `ArrayLayout` of the preceding allocation. + unsafe { A::free(self.buf.cast(), self.layout.into()) }; + } +} + +impl<T, A> IntoIterator for Vec<T, A> +where + A: Allocator, +{ + type Item = T; + type IntoIter = IntoIter<T, A>; + + /// Consumes the `Vec<T, A>` and creates an `Iterator`, which moves each value out of the + /// vector (from start to end). + /// + /// # Examples + /// + /// ``` + /// let v = kernel::kvec![1, 2]?; + /// let mut v_iter = v.into_iter(); + /// + /// let first_element: Option<u32> = v_iter.next(); + /// + /// assert_eq!(first_element, Some(1)); + /// assert_eq!(v_iter.next(), Some(2)); + /// assert_eq!(v_iter.next(), None); + /// + /// # Ok::<(), Error>(()) + /// ``` + /// + /// ``` + /// let v = kernel::kvec![]; + /// let mut v_iter = v.into_iter(); + /// + /// let first_element: Option<u32> = v_iter.next(); + /// + /// assert_eq!(first_element, None); + /// + /// # Ok::<(), Error>(()) + /// ``` + #[inline] + fn into_iter(self) -> Self::IntoIter { + let buf = self.ptr; + let layout = self.layout; + let (ptr, len, _) = self.into_raw_parts(); + + IntoIter { + ptr, + buf, + len, + layout, + _p: PhantomData::<A>, + } + } +} diff --git a/rust/kernel/alloc/layout.rs b/rust/kernel/alloc/layout.rs new file mode 100644 index 000000000000..4b3cd7fdc816 --- /dev/null +++ b/rust/kernel/alloc/layout.rs @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: GPL-2.0 + +//! Memory layout. +//! +//! Custom layout types extending or improving [`Layout`]. + +use core::{alloc::Layout, marker::PhantomData}; + +/// Error when constructing an [`ArrayLayout`]. +pub struct LayoutError; + +/// A layout for an array `[T; n]`. +/// +/// # Invariants +/// +/// - `len * size_of::<T>() <= isize::MAX`. +pub struct ArrayLayout<T> { + len: usize, + _phantom: PhantomData<fn() -> T>, +} + +impl<T> Clone for ArrayLayout<T> { + fn clone(&self) -> Self { + *self + } +} +impl<T> Copy for ArrayLayout<T> {} + +const ISIZE_MAX: usize = isize::MAX as usize; + +impl<T> ArrayLayout<T> { + /// Creates a new layout for `[T; 0]`. + pub const fn empty() -> Self { + // INVARIANT: `0 * size_of::<T>() <= isize::MAX`. + Self { + len: 0, + _phantom: PhantomData, + } + } + + /// Creates a new layout for `[T; len]`. + /// + /// # Errors + /// + /// When `len * size_of::<T>()` overflows or when `len * size_of::<T>() > isize::MAX`. + pub const fn new(len: usize) -> Result<Self, LayoutError> { + match len.checked_mul(core::mem::size_of::<T>()) { + Some(size) if size <= ISIZE_MAX => { + // INVARIANT: We checked above that `len * size_of::<T>() <= isize::MAX`. + Ok(Self { + len, + _phantom: PhantomData, + }) + } + _ => Err(LayoutError), + } + } + + /// Creates a new layout for `[T; len]`. + /// + /// # Safety + /// + /// `len` must be a value, for which `len * size_of::<T>() <= isize::MAX` is true. + pub unsafe fn new_unchecked(len: usize) -> Self { + // INVARIANT: By the safety requirements of this function + // `len * size_of::<T>() <= isize::MAX`. + Self { + len, + _phantom: PhantomData, + } + } + + /// Returns the number of array elements represented by this layout. + pub const fn len(&self) -> usize { + self.len + } + + /// Returns `true` when no array elements are represented by this layout. + pub const fn is_empty(&self) -> bool { + self.len == 0 + } +} + +impl<T> From<ArrayLayout<T>> for Layout { + fn from(value: ArrayLayout<T>) -> Self { + let res = Layout::array::<T>(value.len); + // SAFETY: By the type invariant of `ArrayLayout` we have + // `len * size_of::<T>() <= isize::MAX` and thus the result must be `Ok`. + unsafe { res.unwrap_unchecked() } + } +} diff --git a/rust/kernel/alloc/vec_ext.rs b/rust/kernel/alloc/vec_ext.rs deleted file mode 100644 index 1297a4be32e8..000000000000 --- a/rust/kernel/alloc/vec_ext.rs +++ /dev/null @@ -1,185 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 - -//! Extensions to [`Vec`] for fallible allocations. - -use super::{AllocError, Flags}; -use alloc::vec::Vec; - -/// Extensions to [`Vec`]. -pub trait VecExt<T>: Sized { - /// Creates a new [`Vec`] instance with at least the given capacity. - /// - /// # Examples - /// - /// ``` - /// let v = Vec::<u32>::with_capacity(20, GFP_KERNEL)?; - /// - /// assert!(v.capacity() >= 20); - /// # Ok::<(), Error>(()) - /// ``` - fn with_capacity(capacity: usize, flags: Flags) -> Result<Self, AllocError>; - - /// Appends an element to the back of the [`Vec`] instance. - /// - /// # Examples - /// - /// ``` - /// let mut v = Vec::new(); - /// v.push(1, GFP_KERNEL)?; - /// assert_eq!(&v, &[1]); - /// - /// v.push(2, GFP_KERNEL)?; - /// assert_eq!(&v, &[1, 2]); - /// # Ok::<(), Error>(()) - /// ``` - fn push(&mut self, v: T, flags: Flags) -> Result<(), AllocError>; - - /// Pushes clones of the elements of slice into the [`Vec`] instance. - /// - /// # Examples - /// - /// ``` - /// let mut v = Vec::new(); - /// v.push(1, GFP_KERNEL)?; - /// - /// v.extend_from_slice(&[20, 30, 40], GFP_KERNEL)?; - /// assert_eq!(&v, &[1, 20, 30, 40]); - /// - /// v.extend_from_slice(&[50, 60], GFP_KERNEL)?; - /// assert_eq!(&v, &[1, 20, 30, 40, 50, 60]); - /// # Ok::<(), Error>(()) - /// ``` - fn extend_from_slice(&mut self, other: &[T], flags: Flags) -> Result<(), AllocError> - where - T: Clone; - - /// Ensures that the capacity exceeds the length by at least `additional` elements. - /// - /// # Examples - /// - /// ``` - /// let mut v = Vec::new(); - /// v.push(1, GFP_KERNEL)?; - /// - /// v.reserve(10, GFP_KERNEL)?; - /// let cap = v.capacity(); - /// assert!(cap >= 10); - /// - /// v.reserve(10, GFP_KERNEL)?; - /// let new_cap = v.capacity(); - /// assert_eq!(new_cap, cap); - /// - /// # Ok::<(), Error>(()) - /// ``` - fn reserve(&mut self, additional: usize, flags: Flags) -> Result<(), AllocError>; -} - -impl<T> VecExt<T> for Vec<T> { - fn with_capacity(capacity: usize, flags: Flags) -> Result<Self, AllocError> { - let mut v = Vec::new(); - <Self as VecExt<_>>::reserve(&mut v, capacity, flags)?; - Ok(v) - } - - fn push(&mut self, v: T, flags: Flags) -> Result<(), AllocError> { - <Self as VecExt<_>>::reserve(self, 1, flags)?; - let s = self.spare_capacity_mut(); - s[0].write(v); - - // SAFETY: We just initialised the first spare entry, so it is safe to increase the length - // by 1. We also know that the new length is <= capacity because of the previous call to - // `reserve` above. - unsafe { self.set_len(self.len() + 1) }; - Ok(()) - } - - fn extend_from_slice(&mut self, other: &[T], flags: Flags) -> Result<(), AllocError> - where - T: Clone, - { - <Self as VecExt<_>>::reserve(self, other.len(), flags)?; - for (slot, item) in core::iter::zip(self.spare_capacity_mut(), other) { - slot.write(item.clone()); - } - - // SAFETY: We just initialised the `other.len()` spare entries, so it is safe to increase - // the length by the same amount. We also know that the new length is <= capacity because - // of the previous call to `reserve` above. - unsafe { self.set_len(self.len() + other.len()) }; - Ok(()) - } - - #[cfg(any(test, testlib))] - fn reserve(&mut self, additional: usize, _flags: Flags) -> Result<(), AllocError> { - Vec::reserve(self, additional); - Ok(()) - } - - #[cfg(not(any(test, testlib)))] - fn reserve(&mut self, additional: usize, flags: Flags) -> Result<(), AllocError> { - let len = self.len(); - let cap = self.capacity(); - - if cap - len >= additional { - return Ok(()); - } - - if core::mem::size_of::<T>() == 0 { - // The capacity is already `usize::MAX` for SZTs, we can't go higher. - return Err(AllocError); - } - - // We know cap is <= `isize::MAX` because `Layout::array` fails if the resulting byte size - // is greater than `isize::MAX`. So the multiplication by two won't overflow. - let new_cap = core::cmp::max(cap * 2, len.checked_add(additional).ok_or(AllocError)?); - let layout = core::alloc::Layout::array::<T>(new_cap).map_err(|_| AllocError)?; - - let (old_ptr, len, cap) = destructure(self); - - // We need to make sure that `ptr` is either NULL or comes from a previous call to - // `krealloc_aligned`. A `Vec<T>`'s `ptr` value is not guaranteed to be NULL and might be - // dangling after being created with `Vec::new`. Instead, we can rely on `Vec<T>`'s capacity - // to be zero if no memory has been allocated yet. - let ptr = if cap == 0 { - core::ptr::null_mut() - } else { - old_ptr - }; - - // SAFETY: `ptr` is valid because it's either NULL or comes from a previous call to - // `krealloc_aligned`. We also verified that the type is not a ZST. - let new_ptr = unsafe { super::allocator::krealloc_aligned(ptr.cast(), layout, flags) }; - if new_ptr.is_null() { - // SAFETY: We are just rebuilding the existing `Vec` with no changes. - unsafe { rebuild(self, old_ptr, len, cap) }; - Err(AllocError) - } else { - // SAFETY: `ptr` has been reallocated with the layout for `new_cap` elements. New cap - // is greater than `cap`, so it continues to be >= `len`. - unsafe { rebuild(self, new_ptr.cast::<T>(), len, new_cap) }; - Ok(()) - } - } -} - -#[cfg(not(any(test, testlib)))] -fn destructure<T>(v: &mut Vec<T>) -> (*mut T, usize, usize) { - let mut tmp = Vec::new(); - core::mem::swap(&mut tmp, v); - let mut tmp = core::mem::ManuallyDrop::new(tmp); - let len = tmp.len(); - let cap = tmp.capacity(); - (tmp.as_mut_ptr(), len, cap) -} - -/// Rebuilds a `Vec` from a pointer, length, and capacity. -/// -/// # Safety -/// -/// The same as [`Vec::from_raw_parts`]. -#[cfg(not(any(test, testlib)))] -unsafe fn rebuild<T>(v: &mut Vec<T>, ptr: *mut T, len: usize, cap: usize) { - // SAFETY: The safety requirements from this function satisfy those of `from_raw_parts`. - let mut tmp = unsafe { Vec::from_raw_parts(ptr, len, cap) }; - core::mem::swap(&mut tmp, v); -} diff --git a/rust/kernel/block/mq/gen_disk.rs b/rust/kernel/block/mq/gen_disk.rs index 708125dce96a..c6df153ebb88 100644 --- a/rust/kernel/block/mq/gen_disk.rs +++ b/rust/kernel/block/mq/gen_disk.rs @@ -174,9 +174,9 @@ pub fn build<T: Operations>( /// /// # Invariants /// -/// - `gendisk` must always point to an initialized and valid `struct gendisk`. -/// - `gendisk` was added to the VFS through a call to -/// `bindings::device_add_disk`. +/// - `gendisk` must always point to an initialized and valid `struct gendisk`. +/// - `gendisk` was added to the VFS through a call to +/// `bindings::device_add_disk`. pub struct GenDisk<T: Operations> { _tagset: Arc<TagSet<T>>, gendisk: *mut bindings::gendisk, diff --git a/rust/kernel/block/mq/operations.rs b/rust/kernel/block/mq/operations.rs index 9ba7fdfeb4b2..c8646d0d9866 100644 --- a/rust/kernel/block/mq/operations.rs +++ b/rust/kernel/block/mq/operations.rs @@ -131,7 +131,7 @@ impl<T: Operations> OperationsVTable<T> { unsafe extern "C" fn poll_callback( _hctx: *mut bindings::blk_mq_hw_ctx, _iob: *mut bindings::io_comp_batch, - ) -> core::ffi::c_int { + ) -> crate::ffi::c_int { T::poll().into() } @@ -145,9 +145,9 @@ impl<T: Operations> OperationsVTable<T> { /// for the same context. unsafe extern "C" fn init_hctx_callback( _hctx: *mut bindings::blk_mq_hw_ctx, - _tagset_data: *mut core::ffi::c_void, - _hctx_idx: core::ffi::c_uint, - ) -> core::ffi::c_int { + _tagset_data: *mut crate::ffi::c_void, + _hctx_idx: crate::ffi::c_uint, + ) -> crate::ffi::c_int { from_result(|| Ok(0)) } @@ -159,7 +159,7 @@ impl<T: Operations> OperationsVTable<T> { /// This function may only be called by blk-mq C infrastructure. unsafe extern "C" fn exit_hctx_callback( _hctx: *mut bindings::blk_mq_hw_ctx, - _hctx_idx: core::ffi::c_uint, + _hctx_idx: crate::ffi::c_uint, ) { } @@ -176,9 +176,9 @@ impl<T: Operations> OperationsVTable<T> { unsafe extern "C" fn init_request_callback( _set: *mut bindings::blk_mq_tag_set, rq: *mut bindings::request, - _hctx_idx: core::ffi::c_uint, - _numa_node: core::ffi::c_uint, - ) -> core::ffi::c_int { + _hctx_idx: crate::ffi::c_uint, + _numa_node: crate::ffi::c_uint, + ) -> crate::ffi::c_int { from_result(|| { // SAFETY: By the safety requirements of this function, `rq` points // to a valid allocation. @@ -203,7 +203,7 @@ impl<T: Operations> OperationsVTable<T> { unsafe extern "C" fn exit_request_callback( _set: *mut bindings::blk_mq_tag_set, rq: *mut bindings::request, - _hctx_idx: core::ffi::c_uint, + _hctx_idx: crate::ffi::c_uint, ) { // SAFETY: The tagset invariants guarantee that all requests are allocated with extra memory // for the request data. diff --git a/rust/kernel/block/mq/raw_writer.rs b/rust/kernel/block/mq/raw_writer.rs index 9222465d670b..7e2159e4f6a6 100644 --- a/rust/kernel/block/mq/raw_writer.rs +++ b/rust/kernel/block/mq/raw_writer.rs @@ -25,7 +25,7 @@ fn new(buffer: &'a mut [u8]) -> Result<RawWriter<'a>> { } pub(crate) fn from_array<const N: usize>( - a: &'a mut [core::ffi::c_char; N], + a: &'a mut [crate::ffi::c_char; N], ) -> Result<RawWriter<'a>> { Self::new( // SAFETY: the buffer of `a` is valid for read and write as `u8` for diff --git a/rust/kernel/block/mq/tag_set.rs b/rust/kernel/block/mq/tag_set.rs index f9a1ca655a35..d7f175a05d99 100644 --- a/rust/kernel/block/mq/tag_set.rs +++ b/rust/kernel/block/mq/tag_set.rs @@ -53,7 +53,7 @@ pub fn new( queue_depth: num_tags, cmd_size, flags: bindings::BLK_MQ_F_SHOULD_MERGE, - driver_data: core::ptr::null_mut::<core::ffi::c_void>(), + driver_data: core::ptr::null_mut::<crate::ffi::c_void>(), nr_maps: num_maps, ..tag_set } diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs index 6f1587a2524e..5fece574ec02 100644 --- a/rust/kernel/error.rs +++ b/rust/kernel/error.rs @@ -6,9 +6,10 @@ use crate::{alloc::AllocError, str::CStr}; -use alloc::alloc::LayoutError; +use core::alloc::LayoutError; use core::fmt; +use core::num::NonZeroI32; use core::num::TryFromIntError; use core::str::Utf8Error; @@ -20,7 +21,11 @@ macro_rules! declare_err { $( #[doc = $doc] )* - pub const $err: super::Error = super::Error(-(crate::bindings::$err as i32)); + pub const $err: super::Error = + match super::Error::try_from_errno(-(crate::bindings::$err as i32)) { + Some(err) => err, + None => panic!("Invalid errno in `declare_err!`"), + }; }; } @@ -88,14 +93,14 @@ macro_rules! declare_err { /// /// The value is a valid `errno` (i.e. `>= -MAX_ERRNO && < 0`). #[derive(Clone, Copy, PartialEq, Eq)] -pub struct Error(core::ffi::c_int); +pub struct Error(NonZeroI32); impl Error { /// Creates an [`Error`] from a kernel error code. /// /// It is a bug to pass an out-of-range `errno`. `EINVAL` would /// be returned in such a case. - pub(crate) fn from_errno(errno: core::ffi::c_int) -> Error { + pub fn from_errno(errno: crate::ffi::c_int) -> Error { if errno < -(bindings::MAX_ERRNO as i32) || errno >= 0 { // TODO: Make it a `WARN_ONCE` once available. crate::pr_warn!( @@ -107,7 +112,20 @@ pub(crate) fn from_errno(errno: core::ffi::c_int) -> Error { // INVARIANT: The check above ensures the type invariant // will hold. - Error(errno) + // SAFETY: `errno` is checked above to be in a valid range. + unsafe { Error::from_errno_unchecked(errno) } + } + + /// Creates an [`Error`] from a kernel error code. + /// + /// Returns [`None`] if `errno` is out-of-range. + const fn try_from_errno(errno: crate::ffi::c_int) -> Option<Error> { + if errno < -(bindings::MAX_ERRNO as i32) || errno >= 0 { + return None; + } + + // SAFETY: `errno` is checked above to be in a valid range. + Some(unsafe { Error::from_errno_unchecked(errno) }) } /// Creates an [`Error`] from a kernel error code. @@ -115,38 +133,35 @@ pub(crate) fn from_errno(errno: core::ffi::c_int) -> Error { /// # Safety /// /// `errno` must be within error code range (i.e. `>= -MAX_ERRNO && < 0`). - unsafe fn from_errno_unchecked(errno: core::ffi::c_int) -> Error { + const unsafe fn from_errno_unchecked(errno: crate::ffi::c_int) -> Error { // INVARIANT: The contract ensures the type invariant // will hold. - Error(errno) + // SAFETY: The caller guarantees `errno` is non-zero. + Error(unsafe { NonZeroI32::new_unchecked(errno) }) } /// Returns the kernel error code. - pub fn to_errno(self) -> core::ffi::c_int { - self.0 + pub fn to_errno(self) -> crate::ffi::c_int { + self.0.get() } #[cfg(CONFIG_BLOCK)] pub(crate) fn to_blk_status(self) -> bindings::blk_status_t { // SAFETY: `self.0` is a valid error due to its invariant. - unsafe { bindings::errno_to_blk_status(self.0) } + unsafe { bindings::errno_to_blk_status(self.0.get()) } } /// Returns the error encoded as a pointer. - #[allow(dead_code)] - pub(crate) fn to_ptr<T>(self) -> *mut T { - #[cfg_attr(target_pointer_width = "32", allow(clippy::useless_conversion))] + pub fn to_ptr<T>(self) -> *mut T { // SAFETY: `self.0` is a valid error due to its invariant. - unsafe { - bindings::ERR_PTR(self.0.into()) as *mut _ - } + unsafe { bindings::ERR_PTR(self.0.get() as _) as *mut _ } } /// Returns a string representing the error, if one exists. - #[cfg(not(testlib))] + #[cfg(not(any(test, testlib)))] pub fn name(&self) -> Option<&'static CStr> { // SAFETY: Just an FFI call, there are no extra safety requirements. - let ptr = unsafe { bindings::errname(-self.0) }; + let ptr = unsafe { bindings::errname(-self.0.get()) }; if ptr.is_null() { None } else { @@ -160,7 +175,7 @@ pub fn name(&self) -> Option<&'static CStr> { /// When `testlib` is configured, this always returns `None` to avoid the dependency on a /// kernel function so that tests that use this (e.g., by calling [`Result::unwrap`]) can still /// run in userspace. - #[cfg(testlib)] + #[cfg(any(test, testlib))] pub fn name(&self) -> Option<&'static CStr> { None } @@ -171,9 +186,11 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self.name() { // Print out number if no name can be found. None => f.debug_tuple("Error").field(&-self.0).finish(), - // SAFETY: These strings are ASCII-only. Some(name) => f - .debug_tuple(unsafe { core::str::from_utf8_unchecked(name) }) + .debug_tuple( + // SAFETY: These strings are ASCII-only. + unsafe { core::str::from_utf8_unchecked(name) }, + ) .finish(), } } @@ -239,7 +256,7 @@ fn from(e: core::convert::Infallible) -> Error { /// Converts an integer as returned by a C kernel function to an error if it's negative, and /// `Ok(())` otherwise. -pub fn to_result(err: core::ffi::c_int) -> Result { +pub fn to_result(err: crate::ffi::c_int) -> Result { if err < 0 { Err(Error::from_errno(err)) } else { @@ -262,21 +279,21 @@ pub fn to_result(err: core::ffi::c_int) -> Result { /// fn devm_platform_ioremap_resource( /// pdev: &mut PlatformDevice, /// index: u32, -/// ) -> Result<*mut core::ffi::c_void> { +/// ) -> Result<*mut kernel::ffi::c_void> { /// // SAFETY: `pdev` points to a valid platform device. There are no safety requirements /// // on `index`. /// from_err_ptr(unsafe { bindings::devm_platform_ioremap_resource(pdev.to_ptr(), index) }) /// } /// ``` -// TODO: Remove `dead_code` marker once an in-kernel client is available. -#[allow(dead_code)] -pub(crate) fn from_err_ptr<T>(ptr: *mut T) -> Result<*mut T> { - // CAST: Casting a pointer to `*const core::ffi::c_void` is always valid. - let const_ptr: *const core::ffi::c_void = ptr.cast(); +pub fn from_err_ptr<T>(ptr: *mut T) -> Result<*mut T> { + // CAST: Casting a pointer to `*const crate::ffi::c_void` is always valid. + let const_ptr: *const crate::ffi::c_void = ptr.cast(); // SAFETY: The FFI function does not deref the pointer. if unsafe { bindings::IS_ERR(const_ptr) } { // SAFETY: The FFI function does not deref the pointer. let err = unsafe { bindings::PTR_ERR(const_ptr) }; + + #[allow(clippy::unnecessary_cast)] // CAST: If `IS_ERR()` returns `true`, // then `PTR_ERR()` is guaranteed to return a // negative value greater-or-equal to `-bindings::MAX_ERRNO`, @@ -286,8 +303,7 @@ pub(crate) fn from_err_ptr<T>(ptr: *mut T) -> Result<*mut T> { // // SAFETY: `IS_ERR()` ensures `err` is a // negative value greater-or-equal to `-bindings::MAX_ERRNO`. - #[allow(clippy::unnecessary_cast)] - return Err(unsafe { Error::from_errno_unchecked(err as core::ffi::c_int) }); + return Err(unsafe { Error::from_errno_unchecked(err as crate::ffi::c_int) }); } Ok(ptr) } @@ -307,7 +323,7 @@ pub(crate) fn from_err_ptr<T>(ptr: *mut T) -> Result<*mut T> { /// # use kernel::bindings; /// unsafe extern "C" fn probe_callback( /// pdev: *mut bindings::platform_device, -/// ) -> core::ffi::c_int { +/// ) -> kernel::ffi::c_int { /// from_result(|| { /// let ptr = devm_alloc(pdev)?; /// bindings::platform_set_drvdata(pdev, ptr); @@ -315,9 +331,7 @@ pub(crate) fn from_err_ptr<T>(ptr: *mut T) -> Result<*mut T> { /// }) /// } /// ``` -// TODO: Remove `dead_code` marker once an in-kernel client is available. -#[allow(dead_code)] -pub(crate) fn from_result<T, F>(f: F) -> T +pub fn from_result<T, F>(f: F) -> T where T: From<i16>, F: FnOnce() -> Result<T>, diff --git a/rust/kernel/firmware.rs b/rust/kernel/firmware.rs index 13a374a5cdb7..c5162fdc95ff 100644 --- a/rust/kernel/firmware.rs +++ b/rust/kernel/firmware.rs @@ -12,7 +12,7 @@ /// One of the following: `bindings::request_firmware`, `bindings::firmware_request_nowarn`, /// `bindings::firmware_request_platform`, `bindings::request_firmware_direct`. struct FwFunc( - unsafe extern "C" fn(*mut *const bindings::firmware, *const i8, *mut bindings::device) -> i32, + unsafe extern "C" fn(*mut *const bindings::firmware, *const u8, *mut bindings::device) -> i32, ); impl FwFunc { diff --git a/rust/kernel/init.rs b/rust/kernel/init.rs index 789f80f71ca7..c962029f96e1 100644 --- a/rust/kernel/init.rs +++ b/rust/kernel/init.rs @@ -13,7 +13,7 @@ //! To initialize a `struct` with an in-place constructor you will need two things: //! - an in-place constructor, //! - a memory location that can hold your `struct` (this can be the [stack], an [`Arc<T>`], -//! [`UniqueArc<T>`], [`Box<T>`] or any other smart pointer that implements [`InPlaceInit`]). +//! [`UniqueArc<T>`], [`KBox<T>`] or any other smart pointer that implements [`InPlaceInit`]). //! //! To get an in-place constructor there are generally three options: //! - directly creating an in-place constructor using the [`pin_init!`] macro, @@ -35,7 +35,7 @@ //! that you need to write `<-` instead of `:` for fields that you want to initialize in-place. //! //! ```rust -//! # #![allow(clippy::disallowed_names)] +//! # #![expect(clippy::disallowed_names)] //! use kernel::sync::{new_mutex, Mutex}; //! # use core::pin::Pin; //! #[pin_data] @@ -55,7 +55,7 @@ //! (or just the stack) to actually initialize a `Foo`: //! //! ```rust -//! # #![allow(clippy::disallowed_names)] +//! # #![expect(clippy::disallowed_names)] //! # use kernel::sync::{new_mutex, Mutex}; //! # use core::pin::Pin; //! # #[pin_data] @@ -68,7 +68,7 @@ //! # a <- new_mutex!(42, "Foo::a"), //! # b: 24, //! # }); -//! let foo: Result<Pin<Box<Foo>>> = Box::pin_init(foo, GFP_KERNEL); +//! let foo: Result<Pin<KBox<Foo>>> = KBox::pin_init(foo, GFP_KERNEL); //! ``` //! //! For more information see the [`pin_init!`] macro. @@ -87,20 +87,19 @@ //! To declare an init macro/function you just return an [`impl PinInit<T, E>`]: //! //! ```rust -//! # #![allow(clippy::disallowed_names)] //! # use kernel::{sync::Mutex, new_mutex, init::PinInit, try_pin_init}; //! #[pin_data] //! struct DriverData { //! #[pin] //! status: Mutex<i32>, -//! buffer: Box<[u8; 1_000_000]>, +//! buffer: KBox<[u8; 1_000_000]>, //! } //! //! impl DriverData { //! fn new() -> impl PinInit<Self, Error> { //! try_pin_init!(Self { //! status <- new_mutex!(0, "DriverData::status"), -//! buffer: Box::init(kernel::init::zeroed(), GFP_KERNEL)?, +//! buffer: KBox::init(kernel::init::zeroed(), GFP_KERNEL)?, //! }) //! } //! } @@ -121,11 +120,12 @@ //! `slot` gets called. //! //! ```rust -//! # #![allow(unreachable_pub, clippy::disallowed_names)] +//! # #![expect(unreachable_pub, clippy::disallowed_names)] //! use kernel::{init, types::Opaque}; //! use core::{ptr::addr_of_mut, marker::PhantomPinned, pin::Pin}; //! # mod bindings { -//! # #![allow(non_camel_case_types)] +//! # #![expect(non_camel_case_types)] +//! # #![expect(clippy::missing_safety_doc)] //! # pub struct foo; //! # pub unsafe fn init_foo(_ptr: *mut foo) {} //! # pub unsafe fn destroy_foo(_ptr: *mut foo) {} @@ -133,7 +133,7 @@ //! # } //! # // `Error::from_errno` is `pub(crate)` in the `kernel` crate, thus provide a workaround. //! # trait FromErrno { -//! # fn from_errno(errno: core::ffi::c_int) -> Error { +//! # fn from_errno(errno: kernel::ffi::c_int) -> Error { //! # // Dummy error that can be constructed outside the `kernel` crate. //! # Error::from(core::fmt::Error) //! # } @@ -211,13 +211,12 @@ //! [`pin_init!`]: crate::pin_init! use crate::{ - alloc::{box_ext::BoxExt, AllocError, Flags}, + alloc::{AllocError, Flags, KBox}, error::{self, Error}, sync::Arc, sync::UniqueArc, types::{Opaque, ScopeGuard}, }; -use alloc::boxed::Box; use core::{ cell::UnsafeCell, convert::Infallible, @@ -238,7 +237,7 @@ /// # Examples /// /// ```rust -/// # #![allow(clippy::disallowed_names)] +/// # #![expect(clippy::disallowed_names)] /// # use kernel::{init, macros::pin_data, pin_init, stack_pin_init, init::*, sync::Mutex, new_mutex}; /// # use core::pin::Pin; /// #[pin_data] @@ -290,7 +289,7 @@ macro_rules! stack_pin_init { /// # Examples /// /// ```rust,ignore -/// # #![allow(clippy::disallowed_names)] +/// # #![expect(clippy::disallowed_names)] /// # use kernel::{init, pin_init, stack_try_pin_init, init::*, sync::Mutex, new_mutex}; /// # use macros::pin_data; /// # use core::{alloc::AllocError, pin::Pin}; @@ -298,7 +297,7 @@ macro_rules! stack_pin_init { /// struct Foo { /// #[pin] /// a: Mutex<usize>, -/// b: Box<Bar>, +/// b: KBox<Bar>, /// } /// /// struct Bar { @@ -307,7 +306,7 @@ macro_rules! stack_pin_init { /// /// stack_try_pin_init!(let foo: Result<Pin<&mut Foo>, AllocError> = pin_init!(Foo { /// a <- new_mutex!(42), -/// b: Box::new(Bar { +/// b: KBox::new(Bar { /// x: 64, /// }, GFP_KERNEL)?, /// })); @@ -316,7 +315,7 @@ macro_rules! stack_pin_init { /// ``` /// /// ```rust,ignore -/// # #![allow(clippy::disallowed_names)] +/// # #![expect(clippy::disallowed_names)] /// # use kernel::{init, pin_init, stack_try_pin_init, init::*, sync::Mutex, new_mutex}; /// # use macros::pin_data; /// # use core::{alloc::AllocError, pin::Pin}; @@ -324,7 +323,7 @@ macro_rules! stack_pin_init { /// struct Foo { /// #[pin] /// a: Mutex<usize>, -/// b: Box<Bar>, +/// b: KBox<Bar>, /// } /// /// struct Bar { @@ -333,7 +332,7 @@ macro_rules! stack_pin_init { /// /// stack_try_pin_init!(let foo: Pin<&mut Foo> =? pin_init!(Foo { /// a <- new_mutex!(42), -/// b: Box::new(Bar { +/// b: KBox::new(Bar { /// x: 64, /// }, GFP_KERNEL)?, /// })); @@ -368,7 +367,6 @@ macro_rules! stack_try_pin_init { /// The syntax is almost identical to that of a normal `struct` initializer: /// /// ```rust -/// # #![allow(clippy::disallowed_names)] /// # use kernel::{init, pin_init, macros::pin_data, init::*}; /// # use core::pin::Pin; /// #[pin_data] @@ -392,7 +390,7 @@ macro_rules! stack_try_pin_init { /// }, /// }); /// # initializer } -/// # Box::pin_init(demo(), GFP_KERNEL).unwrap(); +/// # KBox::pin_init(demo(), GFP_KERNEL).unwrap(); /// ``` /// /// Arbitrary Rust expressions can be used to set the value of a variable. @@ -413,7 +411,6 @@ macro_rules! stack_try_pin_init { /// To create an initializer function, simply declare it like this: /// /// ```rust -/// # #![allow(clippy::disallowed_names)] /// # use kernel::{init, pin_init, init::*}; /// # use core::pin::Pin; /// # #[pin_data] @@ -440,7 +437,7 @@ macro_rules! stack_try_pin_init { /// Users of `Foo` can now create it like this: /// /// ```rust -/// # #![allow(clippy::disallowed_names)] +/// # #![expect(clippy::disallowed_names)] /// # use kernel::{init, pin_init, macros::pin_data, init::*}; /// # use core::pin::Pin; /// # #[pin_data] @@ -462,13 +459,12 @@ macro_rules! stack_try_pin_init { /// # }) /// # } /// # } -/// let foo = Box::pin_init(Foo::new(), GFP_KERNEL); +/// let foo = KBox::pin_init(Foo::new(), GFP_KERNEL); /// ``` /// /// They can also easily embed it into their own `struct`s: /// /// ```rust -/// # #![allow(clippy::disallowed_names)] /// # use kernel::{init, pin_init, macros::pin_data, init::*}; /// # use core::pin::Pin; /// # #[pin_data] @@ -541,6 +537,7 @@ macro_rules! stack_try_pin_init { /// } /// pin_init!(&this in Buf { /// buf: [0; 64], +/// // SAFETY: TODO. /// ptr: unsafe { addr_of_mut!((*this.as_ptr()).buf).cast() }, /// pin: PhantomPinned, /// }); @@ -590,11 +587,10 @@ macro_rules! pin_init { /// # Examples /// /// ```rust -/// # #![feature(new_uninit)] /// use kernel::{init::{self, PinInit}, error::Error}; /// #[pin_data] /// struct BigBuf { -/// big: Box<[u8; 1024 * 1024 * 1024]>, +/// big: KBox<[u8; 1024 * 1024 * 1024]>, /// small: [u8; 1024 * 1024], /// ptr: *mut u8, /// } @@ -602,7 +598,7 @@ macro_rules! pin_init { /// impl BigBuf { /// fn new() -> impl PinInit<Self, Error> { /// try_pin_init!(Self { -/// big: Box::init(init::zeroed(), GFP_KERNEL)?, +/// big: KBox::init(init::zeroed(), GFP_KERNEL)?, /// small: [0; 1024 * 1024], /// ptr: core::ptr::null_mut(), /// }? Error) @@ -694,16 +690,16 @@ macro_rules! init { /// # Examples /// /// ```rust -/// use kernel::{init::{PinInit, zeroed}, error::Error}; +/// use kernel::{alloc::KBox, init::{PinInit, zeroed}, error::Error}; /// struct BigBuf { -/// big: Box<[u8; 1024 * 1024 * 1024]>, +/// big: KBox<[u8; 1024 * 1024 * 1024]>, /// small: [u8; 1024 * 1024], /// } /// /// impl BigBuf { /// fn new() -> impl Init<Self, Error> { /// try_init!(Self { -/// big: Box::init(zeroed(), GFP_KERNEL)?, +/// big: KBox::init(zeroed(), GFP_KERNEL)?, /// small: [0; 1024 * 1024], /// }? Error) /// } @@ -814,8 +810,8 @@ macro_rules! assert_pinned { /// A pin-initializer for the type `T`. /// /// To use this initializer, you will need a suitable memory location that can hold a `T`. This can -/// be [`Box<T>`], [`Arc<T>`], [`UniqueArc<T>`] or even the stack (see [`stack_pin_init!`]). Use the -/// [`InPlaceInit::pin_init`] function of a smart pointer like [`Arc<T>`] on this. +/// be [`KBox<T>`], [`Arc<T>`], [`UniqueArc<T>`] or even the stack (see [`stack_pin_init!`]). Use +/// the [`InPlaceInit::pin_init`] function of a smart pointer like [`Arc<T>`] on this. /// /// Also see the [module description](self). /// @@ -854,7 +850,7 @@ pub unsafe trait PinInit<T: ?Sized, E = Infallible>: Sized { /// # Examples /// /// ```rust - /// # #![allow(clippy::disallowed_names)] + /// # #![expect(clippy::disallowed_names)] /// use kernel::{types::Opaque, init::pin_init_from_closure}; /// #[repr(C)] /// struct RawFoo([u8; 16]); @@ -875,6 +871,7 @@ pub unsafe trait PinInit<T: ?Sized, E = Infallible>: Sized { /// } /// /// let foo = pin_init!(Foo { + /// // SAFETY: TODO. /// raw <- unsafe { /// Opaque::ffi_init(|s| { /// init_foo(s); @@ -894,7 +891,7 @@ fn pin_chain<F>(self, f: F) -> ChainPinInit<Self, F, T, E> } /// An initializer returned by [`PinInit::pin_chain`]. -pub struct ChainPinInit<I, F, T: ?Sized, E>(I, F, __internal::Invariant<(E, Box<T>)>); +pub struct ChainPinInit<I, F, T: ?Sized, E>(I, F, __internal::Invariant<(E, KBox<T>)>); // SAFETY: The `__pinned_init` function is implemented such that it // - returns `Ok(())` on successful initialization, @@ -920,8 +917,8 @@ unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), E> { /// An initializer for `T`. /// /// To use this initializer, you will need a suitable memory location that can hold a `T`. This can -/// be [`Box<T>`], [`Arc<T>`], [`UniqueArc<T>`] or even the stack (see [`stack_pin_init!`]). Use the -/// [`InPlaceInit::init`] function of a smart pointer like [`Arc<T>`] on this. Because +/// be [`KBox<T>`], [`Arc<T>`], [`UniqueArc<T>`] or even the stack (see [`stack_pin_init!`]). Use +/// the [`InPlaceInit::init`] function of a smart pointer like [`Arc<T>`] on this. Because /// [`PinInit<T, E>`] is a super trait, you can use every function that takes it as well. /// /// Also see the [module description](self). @@ -965,7 +962,7 @@ pub unsafe trait Init<T: ?Sized, E = Infallible>: PinInit<T, E> { /// # Examples /// /// ```rust - /// # #![allow(clippy::disallowed_names)] + /// # #![expect(clippy::disallowed_names)] /// use kernel::{types::Opaque, init::{self, init_from_closure}}; /// struct Foo { /// buf: [u8; 1_000_000], @@ -993,7 +990,7 @@ fn chain<F>(self, f: F) -> ChainInit<Self, F, T, E> } /// An initializer returned by [`Init::chain`]. -pub struct ChainInit<I, F, T: ?Sized, E>(I, F, __internal::Invariant<(E, Box<T>)>); +pub struct ChainInit<I, F, T: ?Sized, E>(I, F, __internal::Invariant<(E, KBox<T>)>); // SAFETY: The `__init` function is implemented such that it // - returns `Ok(())` on successful initialization, @@ -1077,8 +1074,9 @@ pub fn uninit<T, E>() -> impl Init<MaybeUninit<T>, E> { /// # Examples /// /// ```rust -/// use kernel::{error::Error, init::init_array_from_fn}; -/// let array: Box<[usize; 1_000]> = Box::init::<Error>(init_array_from_fn(|i| i), GFP_KERNEL).unwrap(); +/// use kernel::{alloc::KBox, error::Error, init::init_array_from_fn}; +/// let array: KBox<[usize; 1_000]> = +/// KBox::init::<Error>(init_array_from_fn(|i| i), GFP_KERNEL).unwrap(); /// assert_eq!(array.len(), 1_000); /// ``` pub fn init_array_from_fn<I, const N: usize, T, E>( @@ -1162,6 +1160,7 @@ pub fn pin_init_array_from_fn<I, const N: usize, T, E>( // SAFETY: Every type can be initialized by-value. unsafe impl<T, E> Init<T, E> for T { unsafe fn __init(self, slot: *mut T) -> Result<(), E> { + // SAFETY: TODO. unsafe { slot.write(self) }; Ok(()) } @@ -1170,6 +1169,7 @@ unsafe fn __init(self, slot: *mut T) -> Result<(), E> { // SAFETY: Every type can be initialized by-value. `__pinned_init` calls `__init`. unsafe impl<T, E> PinInit<T, E> for T { unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), E> { + // SAFETY: TODO. unsafe { self.__init(slot) } } } @@ -1243,26 +1243,6 @@ fn try_init<E>(init: impl Init<T, E>, flags: Flags) -> Result<Self, E> } } -impl<T> InPlaceInit<T> for Box<T> { - type PinnedSelf = Pin<Self>; - - #[inline] - fn try_pin_init<E>(init: impl PinInit<T, E>, flags: Flags) -> Result<Self::PinnedSelf, E> - where - E: From<AllocError>, - { - <Box<_> as BoxExt<_>>::new_uninit(flags)?.write_pin_init(init) - } - - #[inline] - fn try_init<E>(init: impl Init<T, E>, flags: Flags) -> Result<Self, E> - where - E: From<AllocError>, - { - <Box<_> as BoxExt<_>>::new_uninit(flags)?.write_init(init) - } -} - impl<T> InPlaceInit<T> for UniqueArc<T> { type PinnedSelf = Pin<Self>; @@ -1299,28 +1279,6 @@ pub trait InPlaceWrite<T> { fn write_pin_init<E>(self, init: impl PinInit<T, E>) -> Result<Pin<Self::Initialized>, E>; } -impl<T> InPlaceWrite<T> for Box<MaybeUninit<T>> { - type Initialized = Box<T>; - - fn write_init<E>(mut self, init: impl Init<T, E>) -> Result<Self::Initialized, E> { - let slot = self.as_mut_ptr(); - // SAFETY: When init errors/panics, slot will get deallocated but not dropped, - // slot is valid. - unsafe { init.__init(slot)? }; - // SAFETY: All fields have been initialized. - Ok(unsafe { self.assume_init() }) - } - - fn write_pin_init<E>(mut self, init: impl PinInit<T, E>) -> Result<Pin<Self::Initialized>, E> { - let slot = self.as_mut_ptr(); - // SAFETY: When init errors/panics, slot will get deallocated but not dropped, - // slot is valid and will not be moved, because we pin it later. - unsafe { init.__pinned_init(slot)? }; - // SAFETY: All fields have been initialized. - Ok(unsafe { self.assume_init() }.into()) - } -} - impl<T> InPlaceWrite<T> for UniqueArc<MaybeUninit<T>> { type Initialized = UniqueArc<T>; @@ -1411,6 +1369,7 @@ pub fn zeroed<T: Zeroable>() -> impl Init<T> { macro_rules! impl_zeroable { ($($({$($generics:tt)*})? $t:ty, )*) => { + // SAFETY: Safety comments written in the macro invocation. $(unsafe impl$($($generics)*)? Zeroable for $t {})* }; } @@ -1451,7 +1410,7 @@ macro_rules! impl_zeroable { // // In this case we are allowed to use `T: ?Sized`, since all zeros is the `None` variant. {<T: ?Sized>} Option<NonNull<T>>, - {<T: ?Sized>} Option<Box<T>>, + {<T: ?Sized>} Option<KBox<T>>, // SAFETY: `null` pointer is valid. // diff --git a/rust/kernel/init/__internal.rs b/rust/kernel/init/__internal.rs index 13cefd37512f..74329cc3262c 100644 --- a/rust/kernel/init/__internal.rs +++ b/rust/kernel/init/__internal.rs @@ -15,9 +15,10 @@ /// [this table]: https://doc.rust-lang.org/nomicon/phantom-data.html#table-of-phantomdata-patterns pub(super) type Invariant<T> = PhantomData<fn(*mut T) -> *mut T>; -/// This is the module-internal type implementing `PinInit` and `Init`. It is unsafe to create this -/// type, since the closure needs to fulfill the same safety requirement as the -/// `__pinned_init`/`__init` functions. +/// Module-internal type implementing `PinInit` and `Init`. +/// +/// It is unsafe to create this type, since the closure needs to fulfill the same safety +/// requirement as the `__pinned_init`/`__init` functions. pub(crate) struct InitClosure<F, T: ?Sized, E>(pub(crate) F, pub(crate) Invariant<(E, T)>); // SAFETY: While constructing the `InitClosure`, the user promised that it upholds the @@ -53,6 +54,7 @@ unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), E> { pub unsafe trait HasPinData { type PinData: PinData; + #[expect(clippy::missing_safety_doc)] unsafe fn __pin_data() -> Self::PinData; } @@ -82,6 +84,7 @@ fn make_closure<F, O, E>(self, f: F) -> F pub unsafe trait HasInitData { type InitData: InitData; + #[expect(clippy::missing_safety_doc)] unsafe fn __init_data() -> Self::InitData; } @@ -102,7 +105,7 @@ fn make_closure<F, O, E>(self, f: F) -> F } } -pub struct AllData<T: ?Sized>(PhantomData<fn(Box<T>) -> Box<T>>); +pub struct AllData<T: ?Sized>(PhantomData<fn(KBox<T>) -> KBox<T>>); impl<T: ?Sized> Clone for AllData<T> { fn clone(&self) -> Self { @@ -112,10 +115,12 @@ fn clone(&self) -> Self { impl<T: ?Sized> Copy for AllData<T> {} +// SAFETY: TODO. unsafe impl<T: ?Sized> InitData for AllData<T> { type Datee = T; } +// SAFETY: TODO. unsafe impl<T: ?Sized> HasInitData for T { type InitData = AllData<T>; diff --git a/rust/kernel/init/macros.rs b/rust/kernel/init/macros.rs index 9a0c4650ef67..1fd146a83241 100644 --- a/rust/kernel/init/macros.rs +++ b/rust/kernel/init/macros.rs @@ -182,13 +182,13 @@ //! // Normally `Drop` bounds do not have the correct semantics, but for this purpose they do //! // (normally people want to know if a type has any kind of drop glue at all, here we want //! // to know if it has any kind of custom drop glue, which is exactly what this bound does). -//! #[allow(drop_bounds)] +//! #[expect(drop_bounds)] //! impl<T: ::core::ops::Drop> MustNotImplDrop for T {} //! impl<T> MustNotImplDrop for Bar<T> {} //! // Here comes a convenience check, if one implemented `PinnedDrop`, but forgot to add it to //! // `#[pin_data]`, then this will error with the same mechanic as above, this is not needed //! // for safety, but a good sanity check, since no normal code calls `PinnedDrop::drop`. -//! #[allow(non_camel_case_types)] +//! #[expect(non_camel_case_types)] //! trait UselessPinnedDropImpl_you_need_to_specify_PinnedDrop {} //! impl< //! T: ::kernel::init::PinnedDrop, @@ -513,6 +513,7 @@ fn drop($($sig:tt)*) { } ), ) => { + // SAFETY: TODO. unsafe $($impl_sig)* { // Inherit all attributes and the type/ident tokens for the signature. $(#[$($attr)*])* @@ -872,6 +873,7 @@ unsafe fn __pin_data() -> Self::PinData { } } + // SAFETY: TODO. unsafe impl<$($impl_generics)*> $crate::init::__internal::PinData for __ThePinData<$($ty_generics)*> where $($whr)* @@ -923,14 +925,14 @@ impl<'__pin, $($impl_generics)*> ::core::marker::Unpin for $name<$($ty_generics) // `Drop`. Additionally we will implement this trait for the struct leading to a conflict, // if it also implements `Drop` trait MustNotImplDrop {} - #[allow(drop_bounds)] + #[expect(drop_bounds)] impl<T: ::core::ops::Drop> MustNotImplDrop for T {} impl<$($impl_generics)*> MustNotImplDrop for $name<$($ty_generics)*> where $($whr)* {} // We also take care to prevent users from writing a useless `PinnedDrop` implementation. // They might implement `PinnedDrop` correctly for the struct, but forget to give // `PinnedDrop` as the parameter to `#[pin_data]`. - #[allow(non_camel_case_types)] + #[expect(non_camel_case_types)] trait UselessPinnedDropImpl_you_need_to_specify_PinnedDrop {} impl<T: $crate::init::PinnedDrop> UselessPinnedDropImpl_you_need_to_specify_PinnedDrop for T {} @@ -987,6 +989,7 @@ fn drop(&mut self) { // // The functions are `unsafe` to prevent accidentally calling them. #[allow(dead_code)] + #[expect(clippy::missing_safety_doc)] impl<$($impl_generics)*> $pin_data<$($ty_generics)*> where $($whr)* { @@ -997,6 +1000,7 @@ impl<$($impl_generics)*> $pin_data<$($ty_generics)*> slot: *mut $p_type, init: impl $crate::init::PinInit<$p_type, E>, ) -> ::core::result::Result<(), E> { + // SAFETY: TODO. unsafe { $crate::init::PinInit::__pinned_init(init, slot) } } )* @@ -1007,6 +1011,7 @@ impl<$($impl_generics)*> $pin_data<$($ty_generics)*> slot: *mut $type, init: impl $crate::init::Init<$type, E>, ) -> ::core::result::Result<(), E> { + // SAFETY: TODO. unsafe { $crate::init::Init::__init(init, slot) } } )* @@ -1121,6 +1126,8 @@ macro_rules! __init_internal { // no possibility of returning without `unsafe`. struct __InitOk; // Get the data about fields from the supplied type. + // + // SAFETY: TODO. let data = unsafe { use $crate::init::__internal::$has_data; // Here we abuse `paste!` to retokenize `$t`. Declarative macros have some internal @@ -1176,6 +1183,7 @@ fn assert_zeroable<T: $crate::init::Zeroable>(_: *mut T) {} let init = move |slot| -> ::core::result::Result<(), $err> { init(slot).map(|__InitOk| ()) }; + // SAFETY: TODO. let init = unsafe { $crate::init::$construct_closure::<_, $err>(init) }; init }}; @@ -1324,6 +1332,8 @@ fn assert_zeroable<T: $crate::init::Zeroable>(_: *mut T) {} // Endpoint, nothing more to munch, create the initializer. // Since we are in the closure that is never called, this will never get executed. // We abuse `slot` to get the correct type inference here: + // + // SAFETY: TODO. unsafe { // Here we abuse `paste!` to retokenize `$t`. Declarative macros have some internal // information that is associated to already parsed fragments, so a path fragment diff --git a/rust/kernel/ioctl.rs b/rust/kernel/ioctl.rs index cfa7d080b531..2fc7662339e5 100644 --- a/rust/kernel/ioctl.rs +++ b/rust/kernel/ioctl.rs @@ -4,7 +4,7 @@ //! //! C header: [`include/asm-generic/ioctl.h`](srctree/include/asm-generic/ioctl.h) -#![allow(non_snake_case)] +#![expect(non_snake_case)] use crate::build_assert; diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs index e936254531fd..d764cb7ff5d7 100644 --- a/rust/kernel/lib.rs +++ b/rust/kernel/lib.rs @@ -15,7 +15,8 @@ #![feature(arbitrary_self_types)] #![feature(coerce_unsized)] #![feature(dispatch_from_dyn)] -#![feature(new_uninit)] +#![feature(inline_const)] +#![feature(lint_reasons)] #![feature(unsize)] // Ensure conditional compilation based on the kernel configuration works; @@ -26,6 +27,8 @@ // Allow proc-macros to refer to `::kernel` inside the `kernel` crate (this crate). extern crate self as kernel; +pub use ffi; + pub mod alloc; #[cfg(CONFIG_BLOCK)] pub mod block; diff --git a/rust/kernel/list.rs b/rust/kernel/list.rs index 5b4aec29eb67..fb93330f4af4 100644 --- a/rust/kernel/list.rs +++ b/rust/kernel/list.rs @@ -354,6 +354,7 @@ pub fn pop_front(&mut self) -> Option<ListArc<T, ID>> { /// /// `item` must not be in a different linked list (with the same id). pub unsafe fn remove(&mut self, item: &T) -> Option<ListArc<T, ID>> { + // SAFETY: TODO. let mut item = unsafe { ListLinks::fields(T::view_links(item)) }; // SAFETY: The user provided a reference, and reference are never dangling. // diff --git a/rust/kernel/list/arc_field.rs b/rust/kernel/list/arc_field.rs index 2330f673427a..c4b9dd503982 100644 --- a/rust/kernel/list/arc_field.rs +++ b/rust/kernel/list/arc_field.rs @@ -56,7 +56,7 @@ pub unsafe fn assert_ref(&self) -> &T { /// /// The caller must have mutable access to the `ListArc<ID>` containing the struct with this /// field for the duration of the returned reference. - #[allow(clippy::mut_from_ref)] + #[expect(clippy::mut_from_ref)] pub unsafe fn assert_mut(&self) -> &mut T { // SAFETY: The caller has exclusive access to the `ListArc`, so they also have exclusive // access to this field. diff --git a/rust/kernel/net/phy.rs b/rust/kernel/net/phy.rs index 910ce867480a..beb62ec712c3 100644 --- a/rust/kernel/net/phy.rs +++ b/rust/kernel/net/phy.rs @@ -314,7 +314,7 @@ impl<T: Driver> Adapter<T> { /// `phydev` must be passed by the corresponding callback in `phy_driver`. unsafe extern "C" fn soft_reset_callback( phydev: *mut bindings::phy_device, - ) -> core::ffi::c_int { + ) -> crate::ffi::c_int { from_result(|| { // SAFETY: This callback is called only in contexts // where we hold `phy_device->lock`, so the accessors on @@ -328,7 +328,7 @@ impl<T: Driver> Adapter<T> { /// # Safety /// /// `phydev` must be passed by the corresponding callback in `phy_driver`. - unsafe extern "C" fn probe_callback(phydev: *mut bindings::phy_device) -> core::ffi::c_int { + unsafe extern "C" fn probe_callback(phydev: *mut bindings::phy_device) -> crate::ffi::c_int { from_result(|| { // SAFETY: This callback is called only in contexts // where we can exclusively access `phy_device` because @@ -345,7 +345,7 @@ impl<T: Driver> Adapter<T> { /// `phydev` must be passed by the corresponding callback in `phy_driver`. unsafe extern "C" fn get_features_callback( phydev: *mut bindings::phy_device, - ) -> core::ffi::c_int { + ) -> crate::ffi::c_int { from_result(|| { // SAFETY: This callback is called only in contexts // where we hold `phy_device->lock`, so the accessors on @@ -359,7 +359,7 @@ impl<T: Driver> Adapter<T> { /// # Safety /// /// `phydev` must be passed by the corresponding callback in `phy_driver`. - unsafe extern "C" fn suspend_callback(phydev: *mut bindings::phy_device) -> core::ffi::c_int { + unsafe extern "C" fn suspend_callback(phydev: *mut bindings::phy_device) -> crate::ffi::c_int { from_result(|| { // SAFETY: The C core code ensures that the accessors on // `Device` are okay to call even though `phy_device->lock` @@ -373,7 +373,7 @@ impl<T: Driver> Adapter<T> { /// # Safety /// /// `phydev` must be passed by the corresponding callback in `phy_driver`. - unsafe extern "C" fn resume_callback(phydev: *mut bindings::phy_device) -> core::ffi::c_int { + unsafe extern "C" fn resume_callback(phydev: *mut bindings::phy_device) -> crate::ffi::c_int { from_result(|| { // SAFETY: The C core code ensures that the accessors on // `Device` are okay to call even though `phy_device->lock` @@ -389,7 +389,7 @@ impl<T: Driver> Adapter<T> { /// `phydev` must be passed by the corresponding callback in `phy_driver`. unsafe extern "C" fn config_aneg_callback( phydev: *mut bindings::phy_device, - ) -> core::ffi::c_int { + ) -> crate::ffi::c_int { from_result(|| { // SAFETY: This callback is called only in contexts // where we hold `phy_device->lock`, so the accessors on @@ -405,7 +405,7 @@ impl<T: Driver> Adapter<T> { /// `phydev` must be passed by the corresponding callback in `phy_driver`. unsafe extern "C" fn read_status_callback( phydev: *mut bindings::phy_device, - ) -> core::ffi::c_int { + ) -> crate::ffi::c_int { from_result(|| { // SAFETY: This callback is called only in contexts // where we hold `phy_device->lock`, so the accessors on @@ -421,7 +421,7 @@ impl<T: Driver> Adapter<T> { /// `phydev` must be passed by the corresponding callback in `phy_driver`. unsafe extern "C" fn match_phy_device_callback( phydev: *mut bindings::phy_device, - ) -> core::ffi::c_int { + ) -> crate::ffi::c_int { // SAFETY: This callback is called only in contexts // where we hold `phy_device->lock`, so the accessors on // `Device` are okay to call. diff --git a/rust/kernel/prelude.rs b/rust/kernel/prelude.rs index 4571daec0961..8bdab9aa0d16 100644 --- a/rust/kernel/prelude.rs +++ b/rust/kernel/prelude.rs @@ -14,10 +14,7 @@ #[doc(no_inline)] pub use core::pin::Pin; -pub use crate::alloc::{box_ext::BoxExt, flags::*, vec_ext::VecExt}; - -#[doc(no_inline)] -pub use alloc::{boxed::Box, vec::Vec}; +pub use crate::alloc::{flags::*, Box, KBox, KVBox, KVVec, KVec, VBox, VVec, Vec}; #[doc(no_inline)] pub use macros::{module, pin_data, pinned_drop, vtable, Zeroable}; diff --git a/rust/kernel/print.rs b/rust/kernel/print.rs index 508b0221256c..a28077a7cb30 100644 --- a/rust/kernel/print.rs +++ b/rust/kernel/print.rs @@ -14,6 +14,7 @@ use crate::str::RawFormatter; // Called from `vsprintf` with format specifier `%pA`. +#[expect(clippy::missing_safety_doc)] #[no_mangle] unsafe extern "C" fn rust_fmt_argument( buf: *mut c_char, @@ -23,6 +24,7 @@ use fmt::Write; // SAFETY: The C contract guarantees that `buf` is valid if it's less than `end`. let mut w = unsafe { RawFormatter::from_ptrs(buf.cast(), end.cast()) }; + // SAFETY: TODO. let _ = w.write_fmt(unsafe { *(ptr as *const fmt::Arguments<'_>) }); w.pos().cast() } @@ -102,6 +104,7 @@ pub unsafe fn call_printk( ) { // `_printk` does not seem to fail in any path. #[cfg(CONFIG_PRINTK)] + // SAFETY: TODO. unsafe { bindings::_printk( format_string.as_ptr() as _, @@ -137,7 +140,7 @@ pub fn call_printk_cont(args: fmt::Arguments<'_>) { #[doc(hidden)] #[cfg(not(testlib))] #[macro_export] -#[allow(clippy::crate_in_macro_def)] +#[expect(clippy::crate_in_macro_def)] macro_rules! print_macro ( // The non-continuation cases (most of them, e.g. `INFO`). ($format_string:path, false, $($arg:tt)+) => ( diff --git a/rust/kernel/rbtree.rs b/rust/kernel/rbtree.rs index 7543378d3729..571e27efe544 100644 --- a/rust/kernel/rbtree.rs +++ b/rust/kernel/rbtree.rs @@ -7,7 +7,6 @@ //! Reference: <https://docs.kernel.org/core-api/rbtree.html> use crate::{alloc::Flags, bindings, container_of, error::Result, prelude::*}; -use alloc::boxed::Box; use core::{ cmp::{Ord, Ordering}, marker::PhantomData, @@ -497,7 +496,7 @@ fn drop(&mut self) { // but it is not observable. The loop invariant is still maintained. // SAFETY: `this` is valid per the loop invariant. - unsafe { drop(Box::from_raw(this.cast_mut())) }; + unsafe { drop(KBox::from_raw(this.cast_mut())) }; } } } @@ -764,7 +763,7 @@ pub fn remove_current(self) -> (Option<Self>, RBTreeNode<K, V>) { // point to the links field of `Node<K, V>` objects. let this = unsafe { container_of!(self.current.as_ptr(), Node<K, V>, links) }.cast_mut(); // SAFETY: `this` is valid by the type invariants as described above. - let node = unsafe { Box::from_raw(this) }; + let node = unsafe { KBox::from_raw(this) }; let node = RBTreeNode { node }; // SAFETY: The reference to the tree used to create the cursor outlives the cursor, so // the tree cannot change. By the tree invariant, all nodes are valid. @@ -809,7 +808,7 @@ fn remove_neighbor(&mut self, direction: Direction) -> Option<RBTreeNode<K, V>> // point to the links field of `Node<K, V>` objects. let this = unsafe { container_of!(neighbor, Node<K, V>, links) }.cast_mut(); // SAFETY: `this` is valid by the type invariants as described above. - let node = unsafe { Box::from_raw(this) }; + let node = unsafe { KBox::from_raw(this) }; return Some(RBTreeNode { node }); } None @@ -1038,7 +1037,7 @@ fn next(&mut self) -> Option<Self::Item> { /// It contains the memory needed to hold a node that can be inserted into a red-black tree. One /// can be obtained by directly allocating it ([`RBTreeNodeReservation::new`]). pub struct RBTreeNodeReservation<K, V> { - node: Box<MaybeUninit<Node<K, V>>>, + node: KBox<MaybeUninit<Node<K, V>>>, } impl<K, V> RBTreeNodeReservation<K, V> { @@ -1046,7 +1045,7 @@ impl<K, V> RBTreeNodeReservation<K, V> { /// call to [`RBTree::insert`]. pub fn new(flags: Flags) -> Result<RBTreeNodeReservation<K, V>> { Ok(RBTreeNodeReservation { - node: <Box<_> as BoxExt<_>>::new_uninit(flags)?, + node: KBox::new_uninit(flags)?, }) } } @@ -1062,14 +1061,15 @@ impl<K, V> RBTreeNodeReservation<K, V> { /// Initialises a node reservation. /// /// It then becomes an [`RBTreeNode`] that can be inserted into a tree. - pub fn into_node(mut self, key: K, value: V) -> RBTreeNode<K, V> { - self.node.write(Node { - key, - value, - links: bindings::rb_node::default(), - }); - // SAFETY: We just wrote to it. - let node = unsafe { self.node.assume_init() }; + pub fn into_node(self, key: K, value: V) -> RBTreeNode<K, V> { + let node = KBox::write( + self.node, + Node { + key, + value, + links: bindings::rb_node::default(), + }, + ); RBTreeNode { node } } } @@ -1079,7 +1079,7 @@ pub fn into_node(mut self, key: K, value: V) -> RBTreeNode<K, V> { /// The node is fully initialised (with key and value) and can be inserted into a tree without any /// extra allocations or failure paths. pub struct RBTreeNode<K, V> { - node: Box<Node<K, V>>, + node: KBox<Node<K, V>>, } impl<K, V> RBTreeNode<K, V> { @@ -1091,7 +1091,9 @@ pub fn new(key: K, value: V, flags: Flags) -> Result<RBTreeNode<K, V>> { /// Get the key and value from inside the node. pub fn to_key_value(self) -> (K, V) { - (self.node.key, self.node.value) + let node = KBox::into_inner(self.node); + + (node.key, node.value) } } @@ -1113,7 +1115,7 @@ impl<K, V> RBTreeNode<K, V> { /// may be freed (but only for the key/value; memory for the node itself is kept for reuse). pub fn into_reservation(self) -> RBTreeNodeReservation<K, V> { RBTreeNodeReservation { - node: Box::drop_contents(self.node), + node: KBox::drop_contents(self.node), } } } @@ -1164,7 +1166,7 @@ impl<'a, K, V> RawVacantEntry<'a, K, V> { /// The `node` must have a key such that inserting it here does not break the ordering of this /// [`RBTree`]. fn insert(self, node: RBTreeNode<K, V>) -> &'a mut V { - let node = Box::into_raw(node.node); + let node = KBox::into_raw(node.node); // SAFETY: `node` is valid at least until we call `Box::from_raw`, which only happens when // the node is removed or replaced. @@ -1238,21 +1240,24 @@ pub fn remove_node(self) -> RBTreeNode<K, V> { // SAFETY: The node was a node in the tree, but we removed it, so we can convert it // back into a box. node: unsafe { - Box::from_raw(container_of!(self.node_links, Node<K, V>, links).cast_mut()) + KBox::from_raw(container_of!(self.node_links, Node<K, V>, links).cast_mut()) }, } } /// Takes the value of the entry out of the map, and returns it. pub fn remove(self) -> V { - self.remove_node().node.value + let rb_node = self.remove_node(); + let node = KBox::into_inner(rb_node.node); + + node.value } /// Swap the current node for the provided node. /// /// The key of both nodes must be equal. fn replace(self, node: RBTreeNode<K, V>) -> RBTreeNode<K, V> { - let node = Box::into_raw(node.node); + let node = KBox::into_raw(node.node); // SAFETY: `node` is valid at least until we call `Box::from_raw`, which only happens when // the node is removed or replaced. @@ -1268,7 +1273,7 @@ fn replace(self, node: RBTreeNode<K, V>) -> RBTreeNode<K, V> { // - `self.node_ptr` produces a valid pointer to a node in the tree. // - Now that we removed this entry from the tree, we can convert the node to a box. let old_node = - unsafe { Box::from_raw(container_of!(self.node_links, Node<K, V>, links).cast_mut()) }; + unsafe { KBox::from_raw(container_of!(self.node_links, Node<K, V>, links).cast_mut()) }; RBTreeNode { node: old_node } } diff --git a/rust/kernel/std_vendor.rs b/rust/kernel/std_vendor.rs index 67bf9d37ddb5..8b4872b48e97 100644 --- a/rust/kernel/std_vendor.rs +++ b/rust/kernel/std_vendor.rs @@ -1,5 +1,7 @@ // SPDX-License-Identifier: Apache-2.0 OR MIT +//! Rust standard library vendored code. +//! //! The contents of this file come from the Rust standard library, hosted in //! the <https://github.com/rust-lang/rust> repository, licensed under //! "Apache-2.0 OR MIT" and adapted for kernel use. For copyright details, @@ -14,7 +16,7 @@ /// /// ```rust /// let a = 2; -/// # #[allow(clippy::dbg_macro)] +/// # #[expect(clippy::disallowed_macros)] /// let b = dbg!(a * 2) + 1; /// // ^-- prints: [src/main.rs:2] a * 2 = 4 /// assert_eq!(b, 5); @@ -52,7 +54,7 @@ /// With a method call: /// /// ```rust -/// # #[allow(clippy::dbg_macro)] +/// # #[expect(clippy::disallowed_macros)] /// fn foo(n: usize) { /// if dbg!(n.checked_sub(4)).is_some() { /// // ... @@ -71,7 +73,7 @@ /// Naive factorial implementation: /// /// ```rust -/// # #[allow(clippy::dbg_macro)] +/// # #[expect(clippy::disallowed_macros)] /// # { /// fn factorial(n: u32) -> u32 { /// if dbg!(n <= 1) { @@ -118,7 +120,7 @@ /// a tuple (and return it, too): /// /// ``` -/// # #[allow(clippy::dbg_macro)] +/// # #![expect(clippy::disallowed_macros)] /// assert_eq!(dbg!(1usize, 2u32), (1, 2)); /// ``` /// @@ -127,7 +129,7 @@ /// invocations. You can use a 1-tuple directly if you need one: /// /// ``` -/// # #[allow(clippy::dbg_macro)] +/// # #[expect(clippy::disallowed_macros)] /// # { /// assert_eq!(1, dbg!(1u32,)); // trailing comma ignored /// assert_eq!((1,), dbg!((1u32,))); // 1-tuple diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs index bb8d4f41475b..d04c12a1426d 100644 --- a/rust/kernel/str.rs +++ b/rust/kernel/str.rs @@ -2,8 +2,7 @@ //! String representations. -use crate::alloc::{flags::*, vec_ext::VecExt, AllocError}; -use alloc::vec::Vec; +use crate::alloc::{flags::*, AllocError, KVec}; use core::fmt::{self, Write}; use core::ops::{self, Deref, DerefMut, Index}; @@ -162,10 +161,10 @@ pub const fn len(&self) -> usize { /// Returns the length of this string with `NUL`. #[inline] pub const fn len_with_nul(&self) -> usize { - // SAFETY: This is one of the invariant of `CStr`. - // We add a `unreachable_unchecked` here to hint the optimizer that - // the value returned from this function is non-zero. if self.0.is_empty() { + // SAFETY: This is one of the invariant of `CStr`. + // We add a `unreachable_unchecked` here to hint the optimizer that + // the value returned from this function is non-zero. unsafe { core::hint::unreachable_unchecked() }; } self.0.len() @@ -185,7 +184,7 @@ pub const fn is_empty(&self) -> bool { /// last at least `'a`. When `CStr` is alive, the memory pointed by `ptr` /// must not be mutated. #[inline] - pub unsafe fn from_char_ptr<'a>(ptr: *const core::ffi::c_char) -> &'a Self { + pub unsafe fn from_char_ptr<'a>(ptr: *const crate::ffi::c_char) -> &'a Self { // SAFETY: The safety precondition guarantees `ptr` is a valid pointer // to a `NUL`-terminated C string. let len = unsafe { bindings::strlen(ptr) } + 1; @@ -248,7 +247,7 @@ pub unsafe fn from_bytes_with_nul_unchecked_mut(bytes: &mut [u8]) -> &mut CStr { /// Returns a C pointer to the string. #[inline] - pub const fn as_char_ptr(&self) -> *const core::ffi::c_char { + pub const fn as_char_ptr(&self) -> *const crate::ffi::c_char { self.0.as_ptr() as _ } @@ -301,6 +300,7 @@ pub fn to_str(&self) -> Result<&str, core::str::Utf8Error> { /// ``` #[inline] pub unsafe fn as_str_unchecked(&self) -> &str { + // SAFETY: TODO. unsafe { core::str::from_utf8_unchecked(self.as_bytes()) } } @@ -524,7 +524,28 @@ macro_rules! c_str { #[cfg(test)] mod tests { use super::*; - use alloc::format; + + struct String(CString); + + impl String { + fn from_fmt(args: fmt::Arguments<'_>) -> Self { + String(CString::try_from_fmt(args).unwrap()) + } + } + + impl Deref for String { + type Target = str; + + fn deref(&self) -> &str { + self.0.to_str().unwrap() + } + } + + macro_rules! format { + ($($f:tt)*) => ({ + &*String::from_fmt(kernel::fmt!($($f)*)) + }) + } const ALL_ASCII_CHARS: &'static str = "\\x01\\x02\\x03\\x04\\x05\\x06\\x07\\x08\\x09\\x0a\\x0b\\x0c\\x0d\\x0e\\x0f\ @@ -790,7 +811,7 @@ fn write_str(&mut self, s: &str) -> fmt::Result { /// assert_eq!(s.is_ok(), false); /// ``` pub struct CString { - buf: Vec<u8>, + buf: KVec<u8>, } impl CString { @@ -803,7 +824,7 @@ pub fn try_from_fmt(args: fmt::Arguments<'_>) -> Result<Self, Error> { let size = f.bytes_written(); // Allocate a vector with the required number of bytes, and write to it. - let mut buf = <Vec<_> as VecExt<_>>::with_capacity(size, GFP_KERNEL)?; + let mut buf = KVec::with_capacity(size, GFP_KERNEL)?; // SAFETY: The buffer stored in `buf` is at least of size `size` and is valid for writes. let mut f = unsafe { Formatter::from_buffer(buf.as_mut_ptr(), size) }; f.write_fmt(args)?; @@ -850,10 +871,9 @@ impl<'a> TryFrom<&'a CStr> for CString { type Error = AllocError; fn try_from(cstr: &'a CStr) -> Result<CString, AllocError> { - let mut buf = Vec::new(); + let mut buf = KVec::new(); - <Vec<_> as VecExt<_>>::extend_from_slice(&mut buf, cstr.as_bytes_with_nul(), GFP_KERNEL) - .map_err(|_| AllocError)?; + buf.extend_from_slice(cstr.as_bytes_with_nul(), GFP_KERNEL)?; // INVARIANT: The `CStr` and `CString` types have the same invariants for // the string data, and we copied it over without changes. diff --git a/rust/kernel/sync/arc.rs b/rust/kernel/sync/arc.rs index 28743a7c74a8..fa4509406ee9 100644 --- a/rust/kernel/sync/arc.rs +++ b/rust/kernel/sync/arc.rs @@ -17,13 +17,12 @@ //! [`Arc`]: https://doc.rust-lang.org/std/sync/struct.Arc.html use crate::{ - alloc::{box_ext::BoxExt, AllocError, Flags}, + alloc::{AllocError, Flags, KBox}, bindings, init::{self, InPlaceInit, Init, PinInit}, try_init, types::{ForeignOwnable, Opaque}, }; -use alloc::boxed::Box; use core::{ alloc::Layout, fmt, @@ -201,11 +200,11 @@ pub fn new(contents: T, flags: Flags) -> Result<Self, AllocError> { data: contents, }; - let inner = <Box<_> as BoxExt<_>>::new(value, flags)?; + let inner = KBox::new(value, flags)?; // SAFETY: We just created `inner` with a reference count of 1, which is owned by the new // `Arc` object. - Ok(unsafe { Self::from_inner(Box::leak(inner).into()) }) + Ok(unsafe { Self::from_inner(KBox::leak(inner).into()) }) } } @@ -333,12 +332,12 @@ pub fn into_unique_or_drop(self) -> Option<Pin<UniqueArc<T>>> { impl<T: 'static> ForeignOwnable for Arc<T> { type Borrowed<'a> = ArcBorrow<'a, T>; - fn into_foreign(self) -> *const core::ffi::c_void { + fn into_foreign(self) -> *const crate::ffi::c_void { ManuallyDrop::new(self).ptr.as_ptr() as _ } - unsafe fn borrow<'a>(ptr: *const core::ffi::c_void) -> ArcBorrow<'a, T> { - // SAFETY: By the safety requirement of this function, we know that `ptr` came from + unsafe fn borrow<'a>(ptr: *const crate::ffi::c_void) -> ArcBorrow<'a, T> { + // By the safety requirement of this function, we know that `ptr` came from // a previous call to `Arc::into_foreign`. let inner = NonNull::new(ptr as *mut ArcInner<T>).unwrap(); @@ -347,7 +346,7 @@ unsafe fn borrow<'a>(ptr: *const core::ffi::c_void) -> ArcBorrow<'a, T> { unsafe { ArcBorrow::new(inner) } } - unsafe fn from_foreign(ptr: *const core::ffi::c_void) -> Self { + unsafe fn from_foreign(ptr: *const crate::ffi::c_void) -> Self { // SAFETY: By the safety requirement of this function, we know that `ptr` came from // a previous call to `Arc::into_foreign`, which guarantees that `ptr` is valid and // holds a reference count increment that is transferrable to us. @@ -398,8 +397,8 @@ fn drop(&mut self) { if is_zero { // The count reached zero, we must free the memory. // - // SAFETY: The pointer was initialised from the result of `Box::leak`. - unsafe { drop(Box::from_raw(self.ptr.as_ptr())) }; + // SAFETY: The pointer was initialised from the result of `KBox::leak`. + unsafe { drop(KBox::from_raw(self.ptr.as_ptr())) }; } } } @@ -641,7 +640,7 @@ pub fn new(value: T, flags: Flags) -> Result<Self, AllocError> { /// Tries to allocate a new [`UniqueArc`] instance whose contents are not initialised yet. pub fn new_uninit(flags: Flags) -> Result<UniqueArc<MaybeUninit<T>>, AllocError> { // INVARIANT: The refcount is initialised to a non-zero value. - let inner = Box::try_init::<AllocError>( + let inner = KBox::try_init::<AllocError>( try_init!(ArcInner { // SAFETY: There are no safety requirements for this FFI call. refcount: Opaque::new(unsafe { bindings::REFCOUNT_INIT(1) }), @@ -651,8 +650,8 @@ pub fn new_uninit(flags: Flags) -> Result<UniqueArc<MaybeUninit<T>>, AllocError> )?; Ok(UniqueArc { // INVARIANT: The newly-created object has a refcount of 1. - // SAFETY: The pointer from the `Box` is valid. - inner: unsafe { Arc::from_inner(Box::leak(inner).into()) }, + // SAFETY: The pointer from the `KBox` is valid. + inner: unsafe { Arc::from_inner(KBox::leak(inner).into()) }, }) } } diff --git a/rust/kernel/sync/arc/std_vendor.rs b/rust/kernel/sync/arc/std_vendor.rs index a66a0c2831b3..11b3f4ecca5f 100644 --- a/rust/kernel/sync/arc/std_vendor.rs +++ b/rust/kernel/sync/arc/std_vendor.rs @@ -1,5 +1,7 @@ // SPDX-License-Identifier: Apache-2.0 OR MIT +//! Rust standard library vendored code. +//! //! The contents of this file come from the Rust standard library, hosted in //! the <https://github.com/rust-lang/rust> repository, licensed under //! "Apache-2.0 OR MIT" and adapted for kernel use. For copyright details, diff --git a/rust/kernel/sync/condvar.rs b/rust/kernel/sync/condvar.rs index 2b306afbe56d..7df565038d7d 100644 --- a/rust/kernel/sync/condvar.rs +++ b/rust/kernel/sync/condvar.rs @@ -7,6 +7,7 @@ use super::{lock::Backend, lock::Guard, LockClassKey}; use crate::{ + ffi::{c_int, c_long}, init::PinInit, pin_init, str::CStr, @@ -14,7 +15,6 @@ time::Jiffies, types::Opaque, }; -use core::ffi::{c_int, c_long}; use core::marker::PhantomPinned; use core::ptr; use macros::pin_data; @@ -70,8 +70,8 @@ macro_rules! new_condvar { /// } /// /// /// Allocates a new boxed `Example`. -/// fn new_example() -> Result<Pin<Box<Example>>> { -/// Box::pin_init(pin_init!(Example { +/// fn new_example() -> Result<Pin<KBox<Example>>> { +/// KBox::pin_init(pin_init!(Example { /// value <- new_mutex!(0), /// value_changed <- new_condvar!(), /// }), GFP_KERNEL) @@ -93,7 +93,6 @@ pub struct CondVar { } // SAFETY: `CondVar` only uses a `struct wait_queue_head`, which is safe to use on any thread. -#[allow(clippy::non_send_fields_in_send_ty)] unsafe impl Send for CondVar {} // SAFETY: `CondVar` only uses a `struct wait_queue_head`, which is safe to use on multiple threads diff --git a/rust/kernel/sync/lock.rs b/rust/kernel/sync/lock.rs index f6c34ca4d819..528eb6907231 100644 --- a/rust/kernel/sync/lock.rs +++ b/rust/kernel/sync/lock.rs @@ -46,7 +46,7 @@ pub unsafe trait Backend { /// remain valid for read indefinitely. unsafe fn init( ptr: *mut Self::State, - name: *const core::ffi::c_char, + name: *const crate::ffi::c_char, key: *mut bindings::lock_class_key, ); @@ -150,9 +150,9 @@ pub(crate) fn do_unlocked<U>(&mut self, cb: impl FnOnce() -> U) -> U { // SAFETY: The caller owns the lock, so it is safe to unlock it. unsafe { B::unlock(self.lock.state.get(), &self.state) }; - // SAFETY: The lock was just unlocked above and is being relocked now. - let _relock = - ScopeGuard::new(|| unsafe { B::relock(self.lock.state.get(), &mut self.state) }); + let _relock = ScopeGuard::new(|| + // SAFETY: The lock was just unlocked above and is being relocked now. + unsafe { B::relock(self.lock.state.get(), &mut self.state) }); cb() } diff --git a/rust/kernel/sync/lock/mutex.rs b/rust/kernel/sync/lock/mutex.rs index 30632070ee67..59a872cbcac6 100644 --- a/rust/kernel/sync/lock/mutex.rs +++ b/rust/kernel/sync/lock/mutex.rs @@ -58,7 +58,7 @@ macro_rules! new_mutex { /// } /// /// // Allocate a boxed `Example`. -/// let e = Box::pin_init(Example::new(), GFP_KERNEL)?; +/// let e = KBox::pin_init(Example::new(), GFP_KERNEL)?; /// assert_eq!(e.c, 10); /// assert_eq!(e.d.lock().a, 20); /// assert_eq!(e.d.lock().b, 30); @@ -96,7 +96,7 @@ unsafe impl super::Backend for MutexBackend { unsafe fn init( ptr: *mut Self::State, - name: *const core::ffi::c_char, + name: *const crate::ffi::c_char, key: *mut bindings::lock_class_key, ) { // SAFETY: The safety requirements ensure that `ptr` is valid for writes, and `name` and diff --git a/rust/kernel/sync/lock/spinlock.rs b/rust/kernel/sync/lock/spinlock.rs index ea5c5bc1ce12..b77eed1789ad 100644 --- a/rust/kernel/sync/lock/spinlock.rs +++ b/rust/kernel/sync/lock/spinlock.rs @@ -56,7 +56,7 @@ macro_rules! new_spinlock { /// } /// /// // Allocate a boxed `Example`. -/// let e = Box::pin_init(Example::new(), GFP_KERNEL)?; +/// let e = KBox::pin_init(Example::new(), GFP_KERNEL)?; /// assert_eq!(e.c, 10); /// assert_eq!(e.d.lock().a, 20); /// assert_eq!(e.d.lock().b, 30); @@ -95,7 +95,7 @@ unsafe impl super::Backend for SpinLockBackend { unsafe fn init( ptr: *mut Self::State, - name: *const core::ffi::c_char, + name: *const crate::ffi::c_char, key: *mut bindings::lock_class_key, ) { // SAFETY: The safety requirements ensure that `ptr` is valid for writes, and `name` and diff --git a/rust/kernel/sync/locked_by.rs b/rust/kernel/sync/locked_by.rs index ce2ee8d87865..a7b244675c2b 100644 --- a/rust/kernel/sync/locked_by.rs +++ b/rust/kernel/sync/locked_by.rs @@ -43,7 +43,7 @@ /// struct InnerDirectory { /// /// The sum of the bytes used by all files. /// bytes_used: u64, -/// _files: Vec<File>, +/// _files: KVec<File>, /// } /// /// struct Directory { diff --git a/rust/kernel/task.rs b/rust/kernel/task.rs index 55dff7e088bf..5bce090a3869 100644 --- a/rust/kernel/task.rs +++ b/rust/kernel/task.rs @@ -4,13 +4,9 @@ //! //! C header: [`include/linux/sched.h`](srctree/include/linux/sched.h). +use crate::ffi::{c_int, c_long, c_uint}; use crate::types::Opaque; -use core::{ - ffi::{c_int, c_long, c_uint}, - marker::PhantomData, - ops::Deref, - ptr, -}; +use core::{marker::PhantomData, ops::Deref, ptr}; /// A sentinel value used for infinite timeouts. pub const MAX_SCHEDULE_TIMEOUT: c_long = c_long::MAX; diff --git a/rust/kernel/time.rs b/rust/kernel/time.rs index e3bb5e89f88d..379c0f5772e5 100644 --- a/rust/kernel/time.rs +++ b/rust/kernel/time.rs @@ -12,10 +12,10 @@ pub const NSEC_PER_MSEC: i64 = bindings::NSEC_PER_MSEC as i64; /// The time unit of Linux kernel. One jiffy equals (1/HZ) second. -pub type Jiffies = core::ffi::c_ulong; +pub type Jiffies = crate::ffi::c_ulong; /// The millisecond time unit. -pub type Msecs = core::ffi::c_uint; +pub type Msecs = crate::ffi::c_uint; /// Converts milliseconds to jiffies. #[inline] diff --git a/rust/kernel/types.rs b/rust/kernel/types.rs index 9e7ca066355c..7c8c531ef190 100644 --- a/rust/kernel/types.rs +++ b/rust/kernel/types.rs @@ -3,13 +3,11 @@ //! Kernel types. use crate::init::{self, PinInit}; -use alloc::boxed::Box; use core::{ cell::UnsafeCell, marker::{PhantomData, PhantomPinned}, mem::{ManuallyDrop, MaybeUninit}, ops::{Deref, DerefMut}, - pin::Pin, ptr::NonNull, }; @@ -31,7 +29,7 @@ pub trait ForeignOwnable: Sized { /// For example, it might be invalid, dangling or pointing to uninitialized memory. Using it in /// any way except for [`ForeignOwnable::from_foreign`], [`ForeignOwnable::borrow`], /// [`ForeignOwnable::try_from_foreign`] can result in undefined behavior. - fn into_foreign(self) -> *const core::ffi::c_void; + fn into_foreign(self) -> *const crate::ffi::c_void; /// Borrows a foreign-owned object. /// @@ -39,7 +37,7 @@ pub trait ForeignOwnable: Sized { /// /// `ptr` must have been returned by a previous call to [`ForeignOwnable::into_foreign`] for /// which a previous matching [`ForeignOwnable::from_foreign`] hasn't been called yet. - unsafe fn borrow<'a>(ptr: *const core::ffi::c_void) -> Self::Borrowed<'a>; + unsafe fn borrow<'a>(ptr: *const crate::ffi::c_void) -> Self::Borrowed<'a>; /// Converts a foreign-owned object back to a Rust-owned one. /// @@ -49,7 +47,7 @@ pub trait ForeignOwnable: Sized { /// which a previous matching [`ForeignOwnable::from_foreign`] hasn't been called yet. /// Additionally, all instances (if any) of values returned by [`ForeignOwnable::borrow`] for /// this object must have been dropped. - unsafe fn from_foreign(ptr: *const core::ffi::c_void) -> Self; + unsafe fn from_foreign(ptr: *const crate::ffi::c_void) -> Self; /// Tries to convert a foreign-owned object back to a Rust-owned one. /// @@ -60,7 +58,7 @@ pub trait ForeignOwnable: Sized { /// /// `ptr` must either be null or satisfy the safety requirements for /// [`ForeignOwnable::from_foreign`]. - unsafe fn try_from_foreign(ptr: *const core::ffi::c_void) -> Option<Self> { + unsafe fn try_from_foreign(ptr: *const crate::ffi::c_void) -> Option<Self> { if ptr.is_null() { None } else { @@ -71,64 +69,16 @@ unsafe fn try_from_foreign(ptr: *const core::ffi::c_void) -> Option<Self> { } } -impl<T: 'static> ForeignOwnable for Box<T> { - type Borrowed<'a> = &'a T; - - fn into_foreign(self) -> *const core::ffi::c_void { - Box::into_raw(self) as _ - } - - unsafe fn borrow<'a>(ptr: *const core::ffi::c_void) -> &'a T { - // SAFETY: The safety requirements for this function ensure that the object is still alive, - // so it is safe to dereference the raw pointer. - // The safety requirements of `from_foreign` also ensure that the object remains alive for - // the lifetime of the returned value. - unsafe { &*ptr.cast() } - } - - unsafe fn from_foreign(ptr: *const core::ffi::c_void) -> Self { - // SAFETY: The safety requirements of this function ensure that `ptr` comes from a previous - // call to `Self::into_foreign`. - unsafe { Box::from_raw(ptr as _) } - } -} - -impl<T: 'static> ForeignOwnable for Pin<Box<T>> { - type Borrowed<'a> = Pin<&'a T>; - - fn into_foreign(self) -> *const core::ffi::c_void { - // SAFETY: We are still treating the box as pinned. - Box::into_raw(unsafe { Pin::into_inner_unchecked(self) }) as _ - } - - unsafe fn borrow<'a>(ptr: *const core::ffi::c_void) -> Pin<&'a T> { - // SAFETY: The safety requirements for this function ensure that the object is still alive, - // so it is safe to dereference the raw pointer. - // The safety requirements of `from_foreign` also ensure that the object remains alive for - // the lifetime of the returned value. - let r = unsafe { &*ptr.cast() }; - - // SAFETY: This pointer originates from a `Pin<Box<T>>`. - unsafe { Pin::new_unchecked(r) } - } - - unsafe fn from_foreign(ptr: *const core::ffi::c_void) -> Self { - // SAFETY: The safety requirements of this function ensure that `ptr` comes from a previous - // call to `Self::into_foreign`. - unsafe { Pin::new_unchecked(Box::from_raw(ptr as _)) } - } -} - impl ForeignOwnable for () { type Borrowed<'a> = (); - fn into_foreign(self) -> *const core::ffi::c_void { + fn into_foreign(self) -> *const crate::ffi::c_void { core::ptr::NonNull::dangling().as_ptr() } - unsafe fn borrow<'a>(_: *const core::ffi::c_void) -> Self::Borrowed<'a> {} + unsafe fn borrow<'a>(_: *const crate::ffi::c_void) -> Self::Borrowed<'a> {} - unsafe fn from_foreign(_: *const core::ffi::c_void) -> Self {} + unsafe fn from_foreign(_: *const crate::ffi::c_void) -> Self {} } /// Runs a cleanup function/closure when dropped. @@ -185,7 +135,7 @@ unsafe fn from_foreign(_: *const core::ffi::c_void) -> Self {} /// # use kernel::types::ScopeGuard; /// fn example3(arg: bool) -> Result { /// let mut vec = -/// ScopeGuard::new_with_data(Vec::new(), |v| pr_info!("vec had {} elements\n", v.len())); +/// ScopeGuard::new_with_data(KVec::new(), |v| pr_info!("vec had {} elements\n", v.len())); /// /// vec.push(10u8, GFP_KERNEL)?; /// if arg { @@ -225,7 +175,7 @@ pub fn dismiss(mut self) -> T { impl ScopeGuard<(), fn(())> { /// Creates a new guarded object with the given cleanup function. pub fn new(cleanup: impl FnOnce()) -> ScopeGuard<(), impl FnOnce(())> { - ScopeGuard::new_with_data((), move |_| cleanup()) + ScopeGuard::new_with_data((), move |()| cleanup()) } } @@ -410,6 +360,7 @@ pub unsafe fn from_raw(ptr: NonNull<T>) -> Self { /// /// struct Empty {} /// + /// # // SAFETY: TODO. /// unsafe impl AlwaysRefCounted for Empty { /// fn inc_ref(&self) {} /// unsafe fn dec_ref(_obj: NonNull<Self>) {} @@ -417,6 +368,7 @@ pub unsafe fn from_raw(ptr: NonNull<T>) -> Self { /// /// let mut data = Empty {}; /// let ptr = NonNull::<Empty>::new(&mut data as *mut _).unwrap(); + /// # // SAFETY: TODO. /// let data_ref: ARef<Empty> = unsafe { ARef::from_raw(ptr) }; /// let raw_ptr: NonNull<Empty> = ARef::into_raw(data_ref); /// @@ -481,21 +433,23 @@ pub enum Either<L, R> { /// All bit-patterns must be valid for this type. This type must not have interior mutability. pub unsafe trait FromBytes {} -// SAFETY: All bit patterns are acceptable values of the types below. -unsafe impl FromBytes for u8 {} -unsafe impl FromBytes for u16 {} -unsafe impl FromBytes for u32 {} -unsafe impl FromBytes for u64 {} -unsafe impl FromBytes for usize {} -unsafe impl FromBytes for i8 {} -unsafe impl FromBytes for i16 {} -unsafe impl FromBytes for i32 {} -unsafe impl FromBytes for i64 {} -unsafe impl FromBytes for isize {} -// SAFETY: If all bit patterns are acceptable for individual values in an array, then all bit -// patterns are also acceptable for arrays of that type. -unsafe impl<T: FromBytes> FromBytes for [T] {} -unsafe impl<T: FromBytes, const N: usize> FromBytes for [T; N] {} +macro_rules! impl_frombytes { + ($($({$($generics:tt)*})? $t:ty, )*) => { + // SAFETY: Safety comments written in the macro invocation. + $(unsafe impl$($($generics)*)? FromBytes for $t {})* + }; +} + +impl_frombytes! { + // SAFETY: All bit patterns are acceptable values of the types below. + u8, u16, u32, u64, usize, + i8, i16, i32, i64, isize, + + // SAFETY: If all bit patterns are acceptable for individual values in an array, then all bit + // patterns are also acceptable for arrays of that type. + {<T: FromBytes>} [T], + {<T: FromBytes, const N: usize>} [T; N], +} /// Types that can be viewed as an immutable slice of initialized bytes. /// @@ -514,21 +468,23 @@ unsafe impl<T: FromBytes> FromBytes for [T] {} /// mutability. pub unsafe trait AsBytes {} -// SAFETY: Instances of the following types have no uninitialized portions. -unsafe impl AsBytes for u8 {} -unsafe impl AsBytes for u16 {} -unsafe impl AsBytes for u32 {} -unsafe impl AsBytes for u64 {} -unsafe impl AsBytes for usize {} -unsafe impl AsBytes for i8 {} -unsafe impl AsBytes for i16 {} -unsafe impl AsBytes for i32 {} -unsafe impl AsBytes for i64 {} -unsafe impl AsBytes for isize {} -unsafe impl AsBytes for bool {} -unsafe impl AsBytes for char {} -unsafe impl AsBytes for str {} -// SAFETY: If individual values in an array have no uninitialized portions, then the array itself -// does not have any uninitialized portions either. -unsafe impl<T: AsBytes> AsBytes for [T] {} -unsafe impl<T: AsBytes, const N: usize> AsBytes for [T; N] {} +macro_rules! impl_asbytes { + ($($({$($generics:tt)*})? $t:ty, )*) => { + // SAFETY: Safety comments written in the macro invocation. + $(unsafe impl$($($generics)*)? AsBytes for $t {})* + }; +} + +impl_asbytes! { + // SAFETY: Instances of the following types have no uninitialized portions. + u8, u16, u32, u64, usize, + i8, i16, i32, i64, isize, + bool, + char, + str, + + // SAFETY: If individual values in an array have no uninitialized portions, then the array + // itself does not have any uninitialized portions either. + {<T: AsBytes>} [T], + {<T: AsBytes, const N: usize>} [T; N], +} diff --git a/rust/kernel/uaccess.rs b/rust/kernel/uaccess.rs index e9347cff99ab..5a3c2d4df65f 100644 --- a/rust/kernel/uaccess.rs +++ b/rust/kernel/uaccess.rs @@ -8,11 +8,10 @@ alloc::Flags, bindings, error::Result, + ffi::c_void, prelude::*, types::{AsBytes, FromBytes}, }; -use alloc::vec::Vec; -use core::ffi::{c_ulong, c_void}; use core::mem::{size_of, MaybeUninit}; /// The type used for userspace addresses. @@ -46,15 +45,14 @@ /// every byte in the region. /// /// ```no_run -/// use alloc::vec::Vec; -/// use core::ffi::c_void; +/// use kernel::ffi::c_void; /// use kernel::error::Result; /// use kernel::uaccess::{UserPtr, UserSlice}; /// /// fn bytes_add_one(uptr: UserPtr, len: usize) -> Result<()> { /// let (read, mut write) = UserSlice::new(uptr, len).reader_writer(); /// -/// let mut buf = Vec::new(); +/// let mut buf = KVec::new(); /// read.read_all(&mut buf, GFP_KERNEL)?; /// /// for b in &mut buf { @@ -69,8 +67,7 @@ /// Example illustrating a TOCTOU (time-of-check to time-of-use) bug. /// /// ```no_run -/// use alloc::vec::Vec; -/// use core::ffi::c_void; +/// use kernel::ffi::c_void; /// use kernel::error::{code::EINVAL, Result}; /// use kernel::uaccess::{UserPtr, UserSlice}; /// @@ -78,21 +75,21 @@ /// fn is_valid(uptr: UserPtr, len: usize) -> Result<bool> { /// let read = UserSlice::new(uptr, len).reader(); /// -/// let mut buf = Vec::new(); +/// let mut buf = KVec::new(); /// read.read_all(&mut buf, GFP_KERNEL)?; /// /// todo!() /// } /// /// /// Returns the bytes behind this user pointer if they are valid. -/// fn get_bytes_if_valid(uptr: UserPtr, len: usize) -> Result<Vec<u8>> { +/// fn get_bytes_if_valid(uptr: UserPtr, len: usize) -> Result<KVec<u8>> { /// if !is_valid(uptr, len)? { /// return Err(EINVAL); /// } /// /// let read = UserSlice::new(uptr, len).reader(); /// -/// let mut buf = Vec::new(); +/// let mut buf = KVec::new(); /// read.read_all(&mut buf, GFP_KERNEL)?; /// /// // THIS IS A BUG! The bytes could have changed since we checked them. @@ -130,7 +127,7 @@ pub fn new(ptr: UserPtr, length: usize) -> Self { /// Reads the entirety of the user slice, appending it to the end of the provided buffer. /// /// Fails with [`EFAULT`] if the read happens on a bad address. - pub fn read_all(self, buf: &mut Vec<u8>, flags: Flags) -> Result { + pub fn read_all(self, buf: &mut KVec<u8>, flags: Flags) -> Result { self.reader().read_all(buf, flags) } @@ -227,13 +224,9 @@ pub fn read_raw(&mut self, out: &mut [MaybeUninit<u8>]) -> Result { if len > self.length { return Err(EFAULT); } - let Ok(len_ulong) = c_ulong::try_from(len) else { - return Err(EFAULT); - }; - // SAFETY: `out_ptr` points into a mutable slice of length `len_ulong`, so we may write + // SAFETY: `out_ptr` points into a mutable slice of length `len`, so we may write // that many bytes to it. - let res = - unsafe { bindings::copy_from_user(out_ptr, self.ptr as *const c_void, len_ulong) }; + let res = unsafe { bindings::copy_from_user(out_ptr, self.ptr as *const c_void, len) }; if res != 0 { return Err(EFAULT); } @@ -262,9 +255,6 @@ pub fn read<T: FromBytes>(&mut self) -> Result<T> { if len > self.length { return Err(EFAULT); } - let Ok(len_ulong) = c_ulong::try_from(len) else { - return Err(EFAULT); - }; let mut out: MaybeUninit<T> = MaybeUninit::uninit(); // SAFETY: The local variable `out` is valid for writing `size_of::<T>()` bytes. // @@ -275,7 +265,7 @@ pub fn read<T: FromBytes>(&mut self) -> Result<T> { bindings::_copy_from_user( out.as_mut_ptr().cast::<c_void>(), self.ptr as *const c_void, - len_ulong, + len, ) }; if res != 0 { @@ -291,9 +281,9 @@ pub fn read<T: FromBytes>(&mut self) -> Result<T> { /// Reads the entirety of the user slice, appending it to the end of the provided buffer. /// /// Fails with [`EFAULT`] if the read happens on a bad address. - pub fn read_all(mut self, buf: &mut Vec<u8>, flags: Flags) -> Result { + pub fn read_all(mut self, buf: &mut KVec<u8>, flags: Flags) -> Result { let len = self.length; - VecExt::<u8>::reserve(buf, len, flags)?; + buf.reserve(len, flags)?; // The call to `try_reserve` was successful, so the spare capacity is at least `len` bytes // long. @@ -338,12 +328,9 @@ pub fn write_slice(&mut self, data: &[u8]) -> Result { if len > self.length { return Err(EFAULT); } - let Ok(len_ulong) = c_ulong::try_from(len) else { - return Err(EFAULT); - }; - // SAFETY: `data_ptr` points into an immutable slice of length `len_ulong`, so we may read + // SAFETY: `data_ptr` points into an immutable slice of length `len`, so we may read // that many bytes from it. - let res = unsafe { bindings::copy_to_user(self.ptr as *mut c_void, data_ptr, len_ulong) }; + let res = unsafe { bindings::copy_to_user(self.ptr as *mut c_void, data_ptr, len) }; if res != 0 { return Err(EFAULT); } @@ -362,9 +349,6 @@ pub fn write<T: AsBytes>(&mut self, value: &T) -> Result { if len > self.length { return Err(EFAULT); } - let Ok(len_ulong) = c_ulong::try_from(len) else { - return Err(EFAULT); - }; // SAFETY: The reference points to a value of type `T`, so it is valid for reading // `size_of::<T>()` bytes. // @@ -375,7 +359,7 @@ pub fn write<T: AsBytes>(&mut self, value: &T) -> Result { bindings::_copy_to_user( self.ptr as *mut c_void, (value as *const T).cast::<c_void>(), - len_ulong, + len, ) }; if res != 0 { diff --git a/rust/kernel/workqueue.rs b/rust/kernel/workqueue.rs index 553a5cba2adc..4d1d2062f6eb 100644 --- a/rust/kernel/workqueue.rs +++ b/rust/kernel/workqueue.rs @@ -216,7 +216,7 @@ pub fn try_spawn<T: 'static + Send + FnOnce()>( func: Some(func), }); - self.enqueue(Box::pin_init(init, flags).map_err(|_| AllocError)?); + self.enqueue(KBox::pin_init(init, flags).map_err(|_| AllocError)?); Ok(()) } } @@ -239,9 +239,9 @@ fn project(self: Pin<&mut Self>) -> &mut Option<T> { } impl<T: FnOnce()> WorkItem for ClosureWork<T> { - type Pointer = Pin<Box<Self>>; + type Pointer = Pin<KBox<Self>>; - fn run(mut this: Pin<Box<Self>>) { + fn run(mut this: Pin<KBox<Self>>) { if let Some(func) = this.as_mut().project().take() { (func)() } @@ -297,7 +297,7 @@ unsafe fn __enqueue<F>(self, queue_work_on: F) -> Self::EnqueueOutput /// Defines the method that should be called directly when a work item is executed. /// -/// This trait is implemented by `Pin<Box<T>>` and [`Arc<T>`], and is mainly intended to be +/// This trait is implemented by `Pin<KBox<T>>` and [`Arc<T>`], and is mainly intended to be /// implemented for smart pointer types. For your own structs, you would implement [`WorkItem`] /// instead. The [`run`] method on this trait will usually just perform the appropriate /// `container_of` translation and then call into the [`run`][WorkItem::run] method from the @@ -329,7 +329,7 @@ pub unsafe trait WorkItemPointer<const ID: u64>: RawWorkItem<ID> { /// This trait is used when the `work_struct` field is defined using the [`Work`] helper. pub trait WorkItem<const ID: u64 = 0> { /// The pointer type that this struct is wrapped in. This will typically be `Arc<Self>` or - /// `Pin<Box<Self>>`. + /// `Pin<KBox<Self>>`. type Pointer: WorkItemPointer<ID>; /// The method that should be called when this work item is executed. @@ -366,7 +366,6 @@ unsafe impl<T: ?Sized, const ID: u64> Sync for Work<T, ID> {} impl<T: ?Sized, const ID: u64> Work<T, ID> { /// Creates a new instance of [`Work`]. #[inline] - #[allow(clippy::new_ret_no_self)] pub fn new(name: &'static CStr, key: &'static LockClassKey) -> impl PinInit<Self> where T: WorkItem<ID>, @@ -520,13 +519,14 @@ unsafe fn raw_get_work(ptr: *mut Self) -> *mut $crate::workqueue::Work<$work_typ impl{T} HasWork<Self> for ClosureWork<T> { self.work } } +// SAFETY: TODO. unsafe impl<T, const ID: u64> WorkItemPointer<ID> for Arc<T> where T: WorkItem<ID, Pointer = Self>, T: HasWork<T, ID>, { unsafe extern "C" fn run(ptr: *mut bindings::work_struct) { - // SAFETY: The `__enqueue` method always uses a `work_struct` stored in a `Work<T, ID>`. + // The `__enqueue` method always uses a `work_struct` stored in a `Work<T, ID>`. let ptr = ptr as *mut Work<T, ID>; // SAFETY: This computes the pointer that `__enqueue` got from `Arc::into_raw`. let ptr = unsafe { T::work_container_of(ptr) }; @@ -537,6 +537,7 @@ unsafe impl<T, const ID: u64> WorkItemPointer<ID> for Arc<T> } } +// SAFETY: TODO. unsafe impl<T, const ID: u64> RawWorkItem<ID> for Arc<T> where T: WorkItem<ID, Pointer = Self>, @@ -565,18 +566,19 @@ unsafe fn __enqueue<F>(self, queue_work_on: F) -> Self::EnqueueOutput } } -unsafe impl<T, const ID: u64> WorkItemPointer<ID> for Pin<Box<T>> +// SAFETY: TODO. +unsafe impl<T, const ID: u64> WorkItemPointer<ID> for Pin<KBox<T>> where T: WorkItem<ID, Pointer = Self>, T: HasWork<T, ID>, { unsafe extern "C" fn run(ptr: *mut bindings::work_struct) { - // SAFETY: The `__enqueue` method always uses a `work_struct` stored in a `Work<T, ID>`. + // The `__enqueue` method always uses a `work_struct` stored in a `Work<T, ID>`. let ptr = ptr as *mut Work<T, ID>; // SAFETY: This computes the pointer that `__enqueue` got from `Arc::into_raw`. let ptr = unsafe { T::work_container_of(ptr) }; // SAFETY: This pointer comes from `Arc::into_raw` and we've been given back ownership. - let boxed = unsafe { Box::from_raw(ptr) }; + let boxed = unsafe { KBox::from_raw(ptr) }; // SAFETY: The box was already pinned when it was enqueued. let pinned = unsafe { Pin::new_unchecked(boxed) }; @@ -584,7 +586,8 @@ unsafe impl<T, const ID: u64> WorkItemPointer<ID> for Pin<Box<T>> } } -unsafe impl<T, const ID: u64> RawWorkItem<ID> for Pin<Box<T>> +// SAFETY: TODO. +unsafe impl<T, const ID: u64> RawWorkItem<ID> for Pin<KBox<T>> where T: WorkItem<ID, Pointer = Self>, T: HasWork<T, ID>, @@ -598,9 +601,9 @@ unsafe fn __enqueue<F>(self, queue_work_on: F) -> Self::EnqueueOutput // SAFETY: We're not going to move `self` or any of its fields, so its okay to temporarily // remove the `Pin` wrapper. let boxed = unsafe { Pin::into_inner_unchecked(self) }; - let ptr = Box::into_raw(boxed); + let ptr = KBox::into_raw(boxed); - // SAFETY: Pointers into a `Box` point at a valid value. + // SAFETY: Pointers into a `KBox` point at a valid value. let work_ptr = unsafe { T::raw_get_work(ptr) }; // SAFETY: `raw_get_work` returns a pointer to a valid value. let work_ptr = unsafe { Work::raw_get(work_ptr) }; diff --git a/rust/macros/lib.rs b/rust/macros/lib.rs index 90e2202ba4d5..b16402a16acd 100644 --- a/rust/macros/lib.rs +++ b/rust/macros/lib.rs @@ -132,7 +132,7 @@ pub fn module(ts: TokenStream) -> TokenStream { /// calls to this function at compile time: /// /// ```compile_fail -/// # use kernel::error::VTABLE_DEFAULT_ERROR; +/// # // Intentionally missing `use`s to simplify `rusttest`. /// kernel::build_error(VTABLE_DEFAULT_ERROR) /// ``` /// @@ -242,8 +242,8 @@ pub fn concat_idents(ts: TokenStream) -> TokenStream { /// #[pin_data] /// struct DriverData { /// #[pin] -/// queue: Mutex<Vec<Command>>, -/// buf: Box<[u8; 1024 * 1024]>, +/// queue: Mutex<KVec<Command>>, +/// buf: KBox<[u8; 1024 * 1024]>, /// } /// ``` /// @@ -251,8 +251,8 @@ pub fn concat_idents(ts: TokenStream) -> TokenStream { /// #[pin_data(PinnedDrop)] /// struct DriverData { /// #[pin] -/// queue: Mutex<Vec<Command>>, -/// buf: Box<[u8; 1024 * 1024]>, +/// queue: Mutex<KVec<Command>>, +/// buf: KBox<[u8; 1024 * 1024]>, /// raw_info: *mut Info, /// } /// @@ -281,8 +281,8 @@ pub fn pin_data(inner: TokenStream, item: TokenStream) -> TokenStream { /// #[pin_data(PinnedDrop)] /// struct DriverData { /// #[pin] -/// queue: Mutex<Vec<Command>>, -/// buf: Box<[u8; 1024 * 1024]>, +/// queue: Mutex<KVec<Command>>, +/// buf: KBox<[u8; 1024 * 1024]>, /// raw_info: *mut Info, /// } /// diff --git a/rust/macros/module.rs b/rust/macros/module.rs index aef3b132f32b..e7a087b7e884 100644 --- a/rust/macros/module.rs +++ b/rust/macros/module.rs @@ -253,7 +253,7 @@ mod __module_init {{ #[doc(hidden)] #[no_mangle] #[link_section = \".init.text\"] - pub unsafe extern \"C\" fn init_module() -> core::ffi::c_int {{ + pub unsafe extern \"C\" fn init_module() -> kernel::ffi::c_int {{ // SAFETY: This function is inaccessible to the outside due to the double // module wrapping it. It is called exactly once by the C side via its // unique name. @@ -292,7 +292,7 @@ mod __module_init {{ #[doc(hidden)] #[link_section = \"{initcall_section}\"] #[used] - pub static __{name}_initcall: extern \"C\" fn() -> core::ffi::c_int = __{name}_init; + pub static __{name}_initcall: extern \"C\" fn() -> kernel::ffi::c_int = __{name}_init; #[cfg(not(MODULE))] #[cfg(CONFIG_HAVE_ARCH_PREL32_RELOCATIONS)] @@ -307,7 +307,7 @@ mod __module_init {{ #[cfg(not(MODULE))] #[doc(hidden)] #[no_mangle] - pub extern \"C\" fn __{name}_init() -> core::ffi::c_int {{ + pub extern \"C\" fn __{name}_init() -> kernel::ffi::c_int {{ // SAFETY: This function is inaccessible to the outside due to the double // module wrapping it. It is called exactly once by the C side via its // placement above in the initcall section. @@ -330,7 +330,7 @@ mod __module_init {{ /// # Safety /// /// This function must only be called once. - unsafe fn __init() -> core::ffi::c_int {{ + unsafe fn __init() -> kernel::ffi::c_int {{ match <{type_} as kernel::Module>::init(&super::super::THIS_MODULE) {{ Ok(m) => {{ // SAFETY: No data race, since `__MOD` can only be accessed by this diff --git a/rust/uapi/lib.rs b/rust/uapi/lib.rs index 80a00260e3e7..13495910271f 100644 --- a/rust/uapi/lib.rs +++ b/rust/uapi/lib.rs @@ -14,6 +14,7 @@ #![cfg_attr(test, allow(unsafe_op_in_unsafe_fn))] #![allow( clippy::all, + clippy::undocumented_unsafe_blocks, dead_code, missing_docs, non_camel_case_types, @@ -24,4 +25,9 @@ unsafe_op_in_unsafe_fn )] +// Manual definition of blocklisted types. +type __kernel_size_t = usize; +type __kernel_ssize_t = isize; +type __kernel_ptrdiff_t = isize; + include!(concat!(env!("OBJTREE"), "/rust/uapi/uapi_generated.rs")); diff --git a/samples/rust/rust_minimal.rs b/samples/rust/rust_minimal.rs index 2a9eaab62d1c..4aaf117bf8e3 100644 --- a/samples/rust/rust_minimal.rs +++ b/samples/rust/rust_minimal.rs @@ -13,7 +13,7 @@ } struct RustMinimal { - numbers: Vec<i32>, + numbers: KVec<i32>, } impl kernel::Module for RustMinimal { @@ -21,7 +21,7 @@ fn init(_module: &'static ThisModule) -> Result<Self> { pr_info!("Rust minimal sample (init)\n"); pr_info!("Am I built-in? {}\n", !cfg!(MODULE)); - let mut numbers = Vec::new(); + let mut numbers = KVec::new(); numbers.push(72, GFP_KERNEL)?; numbers.push(108, GFP_KERNEL)?; numbers.push(200, GFP_KERNEL)?; diff --git a/samples/rust/rust_print.rs b/samples/rust/rust_print.rs index 6eabb0d79ea3..ba1606bdbd75 100644 --- a/samples/rust/rust_print.rs +++ b/samples/rust/rust_print.rs @@ -15,6 +15,7 @@ struct RustPrint; +#[expect(clippy::disallowed_macros)] fn arc_print() -> Result { use kernel::sync::*; diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 880785b52c04..2bba59e790b8 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -248,7 +248,7 @@ $(obj)/%.lst: $(obj)/%.c FORCE # Compile Rust sources (.rs) # --------------------------------------------------------------------------- -rust_allowed_features := arbitrary_self_types,new_uninit +rust_allowed_features := arbitrary_self_types,lint_reasons # `--out-dir` is required to avoid temporaries being created by `rustc` in the # current working directory, which may be not accessible in the out-of-tree @@ -258,7 +258,7 @@ rust_common_cmd = \ -Zallow-features=$(rust_allowed_features) \ -Zcrate-attr=no_std \ -Zcrate-attr='feature($(rust_allowed_features))' \ - -Zunstable-options --extern force:alloc --extern kernel \ + -Zunstable-options --extern kernel \ --crate-type rlib -L $(objtree)/rust/ \ --crate-name $(basename $(notdir $@)) \ --sysroot=/dev/null \ diff --git a/scripts/generate_rust_analyzer.py b/scripts/generate_rust_analyzer.py index d2bc63cde8c6..09e1d166d8d2 100755 --- a/scripts/generate_rust_analyzer.py +++ b/scripts/generate_rust_analyzer.py @@ -64,13 +64,6 @@ def generate_crates(srctree, objtree, sysroot_src, external_src, cfgs): [], ) - append_crate( - "alloc", - sysroot_src / "alloc" / "src" / "lib.rs", - ["core", "compiler_builtins"], - cfg=crates_cfgs.get("alloc", []), - ) - append_crate( "macros", srctree / "rust" / "macros" / "lib.rs", @@ -96,7 +89,7 @@ def generate_crates(srctree, objtree, sysroot_src, external_src, cfgs): append_crate( "kernel", srctree / "rust" / "kernel" / "lib.rs", - ["core", "alloc", "macros", "build_error", "bindings"], + ["core", "macros", "build_error", "bindings"], cfg=cfg, ) crates[-1]["source"] = { @@ -133,7 +126,7 @@ def generate_crates(srctree, objtree, sysroot_src, external_src, cfgs): append_crate( name, path, - ["core", "alloc", "kernel"], + ["core", "kernel"], cfg=cfg, ) diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index 9955c4d54e42..b30faf731da7 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -106,7 +106,7 @@ static struct snd_seq_client *clientptr(int clientid) return clienttab[clientid]; } -struct snd_seq_client *snd_seq_client_use_ptr(int clientid) +static struct snd_seq_client *client_use_ptr(int clientid, bool load_module) { unsigned long flags; struct snd_seq_client *client; @@ -126,7 +126,7 @@ struct snd_seq_client *snd_seq_client_use_ptr(int clientid) } spin_unlock_irqrestore(&clients_lock, flags); #ifdef CONFIG_MODULES - if (!in_interrupt()) { + if (load_module) { static DECLARE_BITMAP(client_requested, SNDRV_SEQ_GLOBAL_CLIENTS); static DECLARE_BITMAP(card_requested, SNDRV_CARDS); @@ -168,6 +168,20 @@ struct snd_seq_client *snd_seq_client_use_ptr(int clientid) return client; } +/* get snd_seq_client object for the given id quickly */ +struct snd_seq_client *snd_seq_client_use_ptr(int clientid) +{ + return client_use_ptr(clientid, false); +} + +/* get snd_seq_client object for the given id; + * if not found, retry after loading the modules + */ +static struct snd_seq_client *client_load_and_use_ptr(int clientid) +{ + return client_use_ptr(clientid, IS_ENABLED(CONFIG_MODULES)); +} + /* Take refcount and perform ioctl_mutex lock on the given client; * used only for OSS sequencer * Unlock via snd_seq_client_ioctl_unlock() below @@ -176,7 +190,7 @@ bool snd_seq_client_ioctl_lock(int clientid) { struct snd_seq_client *client; - client = snd_seq_client_use_ptr(clientid); + client = client_load_and_use_ptr(clientid); if (!client) return false; mutex_lock(&client->ioctl_mutex); @@ -1195,7 +1209,7 @@ static int snd_seq_ioctl_running_mode(struct snd_seq_client *client, void *arg) int err = 0; /* requested client number */ - cptr = snd_seq_client_use_ptr(info->client); + cptr = client_load_and_use_ptr(info->client); if (cptr == NULL) return -ENOENT; /* don't change !!! */ @@ -1257,7 +1271,7 @@ static int snd_seq_ioctl_get_client_info(struct snd_seq_client *client, struct snd_seq_client *cptr; /* requested client number */ - cptr = snd_seq_client_use_ptr(client_info->client); + cptr = client_load_and_use_ptr(client_info->client); if (cptr == NULL) return -ENOENT; /* don't change !!! */ @@ -1392,7 +1406,7 @@ static int snd_seq_ioctl_get_port_info(struct snd_seq_client *client, void *arg) struct snd_seq_client *cptr; struct snd_seq_client_port *port; - cptr = snd_seq_client_use_ptr(info->addr.client); + cptr = client_load_and_use_ptr(info->addr.client); if (cptr == NULL) return -ENXIO; @@ -1496,10 +1510,10 @@ static int snd_seq_ioctl_subscribe_port(struct snd_seq_client *client, struct snd_seq_client *receiver = NULL, *sender = NULL; struct snd_seq_client_port *sport = NULL, *dport = NULL; - receiver = snd_seq_client_use_ptr(subs->dest.client); + receiver = client_load_and_use_ptr(subs->dest.client); if (!receiver) goto __end; - sender = snd_seq_client_use_ptr(subs->sender.client); + sender = client_load_and_use_ptr(subs->sender.client); if (!sender) goto __end; sport = snd_seq_port_use_ptr(sender, subs->sender.port); @@ -1864,7 +1878,7 @@ static int snd_seq_ioctl_get_client_pool(struct snd_seq_client *client, struct snd_seq_client_pool *info = arg; struct snd_seq_client *cptr; - cptr = snd_seq_client_use_ptr(info->client); + cptr = client_load_and_use_ptr(info->client); if (cptr == NULL) return -ENOENT; memset(info, 0, sizeof(*info)); @@ -1968,7 +1982,7 @@ static int snd_seq_ioctl_get_subscription(struct snd_seq_client *client, struct snd_seq_client_port *sport = NULL; result = -EINVAL; - sender = snd_seq_client_use_ptr(subs->sender.client); + sender = client_load_and_use_ptr(subs->sender.client); if (!sender) goto __end; sport = snd_seq_port_use_ptr(sender, subs->sender.port); @@ -1999,7 +2013,7 @@ static int snd_seq_ioctl_query_subs(struct snd_seq_client *client, void *arg) struct list_head *p; int i; - cptr = snd_seq_client_use_ptr(subs->root.client); + cptr = client_load_and_use_ptr(subs->root.client); if (!cptr) goto __end; port = snd_seq_port_use_ptr(cptr, subs->root.port); @@ -2066,7 +2080,7 @@ static int snd_seq_ioctl_query_next_client(struct snd_seq_client *client, if (info->client < 0) info->client = 0; for (; info->client < SNDRV_SEQ_MAX_CLIENTS; info->client++) { - cptr = snd_seq_client_use_ptr(info->client); + cptr = client_load_and_use_ptr(info->client); if (cptr) break; /* found */ } @@ -2089,7 +2103,7 @@ static int snd_seq_ioctl_query_next_port(struct snd_seq_client *client, struct snd_seq_client *cptr; struct snd_seq_client_port *port = NULL; - cptr = snd_seq_client_use_ptr(info->addr.client); + cptr = client_load_and_use_ptr(info->addr.client); if (cptr == NULL) return -ENXIO; @@ -2186,7 +2200,7 @@ static int snd_seq_ioctl_client_ump_info(struct snd_seq_client *caller, size = sizeof(struct snd_ump_endpoint_info); else size = sizeof(struct snd_ump_block_info); - cptr = snd_seq_client_use_ptr(client); + cptr = client_load_and_use_ptr(client); if (!cptr) return -ENOENT; @@ -2458,7 +2472,7 @@ int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, if (check_event_type_and_length(ev)) return -EINVAL; - cptr = snd_seq_client_use_ptr(client); + cptr = client_load_and_use_ptr(client); if (cptr == NULL) return -EINVAL; @@ -2690,7 +2704,7 @@ void snd_seq_info_clients_read(struct snd_info_entry *entry, /* list the client table */ for (c = 0; c < SNDRV_SEQ_MAX_CLIENTS; c++) { - client = snd_seq_client_use_ptr(c); + client = client_load_and_use_ptr(c); if (client == NULL) continue; if (client->type == NO_CLIENT) { diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig index 68f1eee9e5c9..dbf933c18a82 100644 --- a/sound/pci/hda/Kconfig +++ b/sound/pci/hda/Kconfig @@ -208,6 +208,7 @@ comment "Set to Y if you want auto-loading the side codec driver" config SND_HDA_CODEC_REALTEK tristate "Build Realtek HD-audio codec support" + depends on INPUT select SND_HDA_GENERIC select SND_HDA_GENERIC_LEDS select SND_HDA_SCODEC_COMPONENT diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index b4540c5cd2a6..ea52bc7370a5 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2242,6 +2242,8 @@ static const struct snd_pci_quirk power_save_denylist[] = { SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0), /* KONTRON SinglePC may cause a stall at runtime resume */ SND_PCI_QUIRK(0x1734, 0x1232, "KONTRON SinglePC", 0), + /* Dell ALC3271 */ + SND_PCI_QUIRK(0x1028, 0x0962, "Dell ALC3271", 0), {} }; diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 4a3b4c6d4114..b559f0d4e348 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -3845,6 +3845,79 @@ static void alc225_shutup(struct hda_codec *codec) } } +static void alc222_init(struct hda_codec *codec) +{ + struct alc_spec *spec = codec->spec; + hda_nid_t hp_pin = alc_get_hp_pin(spec); + bool hp1_pin_sense, hp2_pin_sense; + + if (!hp_pin) + return; + + msleep(30); + + hp1_pin_sense = snd_hda_jack_detect(codec, hp_pin); + hp2_pin_sense = snd_hda_jack_detect(codec, 0x14); + + if (hp1_pin_sense || hp2_pin_sense) { + msleep(2); + + if (hp1_pin_sense) + snd_hda_codec_write(codec, hp_pin, 0, + AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT); + if (hp2_pin_sense) + snd_hda_codec_write(codec, 0x14, 0, + AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT); + msleep(75); + + if (hp1_pin_sense) + snd_hda_codec_write(codec, hp_pin, 0, + AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE); + if (hp2_pin_sense) + snd_hda_codec_write(codec, 0x14, 0, + AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE); + + msleep(75); + } +} + +static void alc222_shutup(struct hda_codec *codec) +{ + struct alc_spec *spec = codec->spec; + hda_nid_t hp_pin = alc_get_hp_pin(spec); + bool hp1_pin_sense, hp2_pin_sense; + + if (!hp_pin) + hp_pin = 0x21; + + hp1_pin_sense = snd_hda_jack_detect(codec, hp_pin); + hp2_pin_sense = snd_hda_jack_detect(codec, 0x14); + + if (hp1_pin_sense || hp2_pin_sense) { + msleep(2); + + if (hp1_pin_sense) + snd_hda_codec_write(codec, hp_pin, 0, + AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE); + if (hp2_pin_sense) + snd_hda_codec_write(codec, 0x14, 0, + AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE); + + msleep(75); + + if (hp1_pin_sense) + snd_hda_codec_write(codec, hp_pin, 0, + AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0); + if (hp2_pin_sense) + snd_hda_codec_write(codec, 0x14, 0, + AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0); + + msleep(75); + } + alc_auto_setup_eapd(codec, false); + alc_shutup_pins(codec); +} + static void alc_default_init(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; @@ -4929,7 +5002,6 @@ static void alc298_fixup_samsung_amp_v2_4_amps(struct hda_codec *codec, alc298_samsung_v2_init_amps(codec, 4); } -#if IS_REACHABLE(CONFIG_INPUT) static void gpio2_mic_hotkey_event(struct hda_codec *codec, struct hda_jack_callback *event) { @@ -5038,10 +5110,6 @@ static void alc233_fixup_lenovo_line2_mic_hotkey(struct hda_codec *codec, spec->kb_dev = NULL; } } -#else /* INPUT */ -#define alc280_fixup_hp_gpio2_mic_hotkey NULL -#define alc233_fixup_lenovo_line2_mic_hotkey NULL -#endif /* INPUT */ static void alc269_fixup_hp_line1_mic1_led(struct hda_codec *codec, const struct hda_fixup *fix, int action) @@ -5055,6 +5123,16 @@ static void alc269_fixup_hp_line1_mic1_led(struct hda_codec *codec, } } +static void alc233_fixup_lenovo_low_en_micmute_led(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ + struct alc_spec *spec = codec->spec; + + if (action == HDA_FIXUP_ACT_PRE_PROBE) + spec->micmute_led_polarity = 1; + alc233_fixup_lenovo_line2_mic_hotkey(codec, fix, action); +} + static void alc_hp_mute_disable(struct hda_codec *codec, unsigned int delay) { if (delay <= 0) @@ -7588,6 +7666,7 @@ enum { ALC275_FIXUP_DELL_XPS, ALC293_FIXUP_LENOVO_SPK_NOISE, ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY, + ALC233_FIXUP_LENOVO_L2MH_LOW_ENLED, ALC255_FIXUP_DELL_SPK_NOISE, ALC225_FIXUP_DISABLE_MIC_VREF, ALC225_FIXUP_DELL1_MIC_NO_PRESENCE, @@ -7657,7 +7736,6 @@ enum { ALC285_FIXUP_THINKPAD_X1_GEN7, ALC285_FIXUP_THINKPAD_HEADSET_JACK, ALC294_FIXUP_ASUS_ALLY, - ALC294_FIXUP_ASUS_ALLY_X, ALC294_FIXUP_ASUS_ALLY_PINS, ALC294_FIXUP_ASUS_ALLY_VERBS, ALC294_FIXUP_ASUS_ALLY_SPEAKER, @@ -8574,6 +8652,10 @@ static const struct hda_fixup alc269_fixups[] = { .type = HDA_FIXUP_FUNC, .v.func = alc233_fixup_lenovo_line2_mic_hotkey, }, + [ALC233_FIXUP_LENOVO_L2MH_LOW_ENLED] = { + .type = HDA_FIXUP_FUNC, + .v.func = alc233_fixup_lenovo_low_en_micmute_led, + }, [ALC233_FIXUP_INTEL_NUC8_DMIC] = { .type = HDA_FIXUP_FUNC, .v.func = alc_fixup_inv_dmic, @@ -9096,12 +9178,6 @@ static const struct hda_fixup alc269_fixups[] = { .chained = true, .chain_id = ALC294_FIXUP_ASUS_ALLY_PINS }, - [ALC294_FIXUP_ASUS_ALLY_X] = { - .type = HDA_FIXUP_FUNC, - .v.func = tas2781_fixup_i2c, - .chained = true, - .chain_id = ALC294_FIXUP_ASUS_ALLY_PINS - }, [ALC294_FIXUP_ASUS_ALLY_PINS] = { .type = HDA_FIXUP_PINS, .v.pins = (const struct hda_pintbl[]) { @@ -10586,7 +10662,6 @@ static const struct hda_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x1043, 0x1740, "ASUS UX430UA", ALC295_FIXUP_ASUS_DACS), SND_PCI_QUIRK(0x1043, 0x17d1, "ASUS UX431FL", ALC294_FIXUP_ASUS_DUAL_SPK), SND_PCI_QUIRK(0x1043, 0x17f3, "ROG Ally NR2301L/X", ALC294_FIXUP_ASUS_ALLY), - SND_PCI_QUIRK(0x1043, 0x1eb3, "ROG Ally X RC72LA", ALC294_FIXUP_ASUS_ALLY_X), SND_PCI_QUIRK(0x1043, 0x1863, "ASUS UX6404VI/VV", ALC245_FIXUP_CS35L41_SPI_2), SND_PCI_QUIRK(0x1043, 0x1881, "ASUS Zephyrus S/M", ALC294_FIXUP_ASUS_GX502_PINS), SND_PCI_QUIRK(0x1043, 0x18b1, "Asus MJ401TA", ALC256_FIXUP_ASUS_HEADSET_MIC), @@ -10852,6 +10927,9 @@ static const struct hda_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x17aa, 0x3178, "ThinkCentre Station", ALC283_FIXUP_HEADSET_MIC), SND_PCI_QUIRK(0x17aa, 0x31af, "ThinkCentre Station", ALC623_FIXUP_LENOVO_THINKSTATION_P340), SND_PCI_QUIRK(0x17aa, 0x334b, "Lenovo ThinkCentre M70 Gen5", ALC283_FIXUP_HEADSET_MIC), + SND_PCI_QUIRK(0x17aa, 0x3384, "ThinkCentre M90a PRO", ALC233_FIXUP_LENOVO_L2MH_LOW_ENLED), + SND_PCI_QUIRK(0x17aa, 0x3386, "ThinkCentre M90a Gen6", ALC233_FIXUP_LENOVO_L2MH_LOW_ENLED), + SND_PCI_QUIRK(0x17aa, 0x3387, "ThinkCentre M70a Gen6", ALC233_FIXUP_LENOVO_L2MH_LOW_ENLED), SND_PCI_QUIRK(0x17aa, 0x3801, "Lenovo Yoga9 14IAP7", ALC287_FIXUP_YOGA9_14IAP7_BASS_SPK_PIN), HDA_CODEC_QUIRK(0x17aa, 0x3802, "DuetITL 2021", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS), SND_PCI_QUIRK(0x17aa, 0x3802, "Lenovo Yoga Pro 9 14IRP8", ALC287_FIXUP_TAS2781_I2C), @@ -11838,8 +11916,11 @@ static int patch_alc269(struct hda_codec *codec) spec->codec_variant = ALC269_TYPE_ALC300; spec->gen.mixer_nid = 0; /* no loopback on ALC300 */ break; + case 0x10ec0222: case 0x10ec0623: spec->codec_variant = ALC269_TYPE_ALC623; + spec->shutup = alc222_shutup; + spec->init_hook = alc222_init; break; case 0x10ec0700: case 0x10ec0701: diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c index 5f81c68fd42b..5756ff3528a2 100644 --- a/sound/usb/usx2y/usbusx2y.c +++ b/sound/usb/usx2y/usbusx2y.c @@ -151,6 +151,12 @@ static int snd_usx2y_card_used[SNDRV_CARDS]; static void snd_usx2y_card_private_free(struct snd_card *card); static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s); +#ifdef USX2Y_NRPACKS_VARIABLE +int nrpacks = USX2Y_NRPACKS; /* number of packets per urb */ +module_param(nrpacks, int, 0444); +MODULE_PARM_DESC(nrpacks, "Number of packets per URB."); +#endif + /* * pipe 4 is used for switching the lamps, setting samplerate, volumes .... */ @@ -432,6 +438,11 @@ static int snd_usx2y_probe(struct usb_interface *intf, struct snd_card *card; int err; +#ifdef USX2Y_NRPACKS_VARIABLE + if (nrpacks < 0 || nrpacks > USX2Y_NRPACKS_MAX) + return -EINVAL; +#endif + if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 || (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 && le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 && diff --git a/sound/usb/usx2y/usbusx2y.h b/sound/usb/usx2y/usbusx2y.h index 391fd7b4ed5e..6a76d04bf1c7 100644 --- a/sound/usb/usx2y/usbusx2y.h +++ b/sound/usb/usx2y/usbusx2y.h @@ -7,6 +7,32 @@ #define NRURBS 2 +/* Default value used for nr of packs per urb. + * 1 to 4 have been tested ok on uhci. + * To use 3 on ohci, you'd need a patch: + * look for "0000425-linux-2.6.9-rc4-mm1_ohci-hcd.patch.gz" on + * "https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000425"; + * + * 1, 2 and 4 work out of the box on ohci, if I recall correctly. + * Bigger is safer operation, smaller gives lower latencies. + */ +#define USX2Y_NRPACKS 4 + +#define USX2Y_NRPACKS_MAX 1024 + +/* If your system works ok with this module's parameter + * nrpacks set to 1, you might as well comment + * this define out, and thereby produce smaller, faster code. + * You'd also set USX2Y_NRPACKS to 1 then. + */ +#define USX2Y_NRPACKS_VARIABLE 1 + +#ifdef USX2Y_NRPACKS_VARIABLE +extern int nrpacks; +#define nr_of_packs() nrpacks +#else +#define nr_of_packs() USX2Y_NRPACKS +#endif #define URBS_ASYNC_SEQ 10 #define URB_DATA_LEN_ASYNC_SEQ 32 diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c index f540f46a0b14..acca8bead82e 100644 --- a/sound/usb/usx2y/usbusx2yaudio.c +++ b/sound/usb/usx2y/usbusx2yaudio.c @@ -28,33 +28,6 @@ #include "usx2y.h" #include "usbusx2y.h" -/* Default value used for nr of packs per urb. - * 1 to 4 have been tested ok on uhci. - * To use 3 on ohci, you'd need a patch: - * look for "0000425-linux-2.6.9-rc4-mm1_ohci-hcd.patch.gz" on - * "https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000425"; - * - * 1, 2 and 4 work out of the box on ohci, if I recall correctly. - * Bigger is safer operation, smaller gives lower latencies. - */ -#define USX2Y_NRPACKS 4 - -/* If your system works ok with this module's parameter - * nrpacks set to 1, you might as well comment - * this define out, and thereby produce smaller, faster code. - * You'd also set USX2Y_NRPACKS to 1 then. - */ -#define USX2Y_NRPACKS_VARIABLE 1 - -#ifdef USX2Y_NRPACKS_VARIABLE -static int nrpacks = USX2Y_NRPACKS; /* number of packets per urb */ -#define nr_of_packs() nrpacks -module_param(nrpacks, int, 0444); -MODULE_PARM_DESC(nrpacks, "Number of packets per URB."); -#else -#define nr_of_packs() USX2Y_NRPACKS -#endif - static int usx2y_urb_capt_retire(struct snd_usx2y_substream *subs) { struct urb *urb = subs->completed_urb; diff --git a/tools/testing/selftests/bpf/benchs/bench_trigger.c b/tools/testing/selftests/bpf/benchs/bench_trigger.c index 2ed0ef6f21ee..32e9f194d449 100644 --- a/tools/testing/selftests/bpf/benchs/bench_trigger.c +++ b/tools/testing/selftests/bpf/benchs/bench_trigger.c @@ -4,6 +4,7 @@ #include <argp.h> #include <unistd.h> #include <stdint.h> +#include "bpf_util.h" #include "bench.h" #include "trigger_bench.skel.h" #include "trace_helpers.h" @@ -72,7 +73,7 @@ static __always_inline void inc_counter(struct counter *counters) unsigned slot; if (unlikely(tid == 0)) - tid = syscall(SYS_gettid); + tid = sys_gettid(); /* multiplicative hashing, it's fast */ slot = 2654435769U * tid; diff --git a/tools/testing/selftests/bpf/bpf_util.h b/tools/testing/selftests/bpf/bpf_util.h index 10587a29b967..feff92219e21 100644 --- a/tools/testing/selftests/bpf/bpf_util.h +++ b/tools/testing/selftests/bpf/bpf_util.h @@ -6,6 +6,7 @@ #include <stdlib.h> #include <string.h> #include <errno.h> +#include <syscall.h> #include <bpf/libbpf.h> /* libbpf_num_possible_cpus */ static inline unsigned int bpf_num_possible_cpus(void) @@ -59,4 +60,12 @@ static inline void bpf_strlcpy(char *dst, const char *src, size_t sz) (offsetof(TYPE, MEMBER) + sizeof_field(TYPE, MEMBER)) #endif +/* Availability of gettid across glibc versions is hit-and-miss, therefore + * fallback to syscall in this macro and use it everywhere. + */ +#ifndef sys_gettid +#define sys_gettid() syscall(SYS_gettid) +#endif + + #endif /* __BPF_UTIL__ */ diff --git a/tools/testing/selftests/bpf/map_tests/task_storage_map.c b/tools/testing/selftests/bpf/map_tests/task_storage_map.c index 7d050364efca..62971dbf2996 100644 --- a/tools/testing/selftests/bpf/map_tests/task_storage_map.c +++ b/tools/testing/selftests/bpf/map_tests/task_storage_map.c @@ -12,6 +12,7 @@ #include <bpf/bpf.h> #include <bpf/libbpf.h> +#include "bpf_util.h" #include "test_maps.h" #include "task_local_storage_helpers.h" #include "read_bpf_task_storage_busy.skel.h" @@ -115,7 +116,7 @@ void test_task_storage_map_stress_lookup(void) CHECK(err, "attach", "error %d\n", err); /* Trigger program */ - syscall(SYS_gettid); + sys_gettid(); skel->bss->pid = 0; CHECK(skel->bss->busy != 0, "bad bpf_task_storage_busy", "got %d\n", skel->bss->busy); diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c b/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c index 070c52c312e5..6befa870434b 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c @@ -690,7 +690,7 @@ void test_bpf_cookie(void) if (!ASSERT_OK_PTR(skel, "skel_open")) return; - skel->bss->my_tid = syscall(SYS_gettid); + skel->bss->my_tid = sys_gettid(); if (test__start_subtest("kprobe")) kprobe_subtest(skel); diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c index 9006549a1294..b8e1224cfd19 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c @@ -226,7 +226,7 @@ static void test_task_common_nocheck(struct bpf_iter_attach_opts *opts, ASSERT_OK(pthread_create(&thread_id, NULL, &do_nothing_wait, NULL), "pthread_create"); - skel->bss->tid = syscall(SYS_gettid); + skel->bss->tid = sys_gettid(); do_dummy_read_opts(skel->progs.dump_task, opts); @@ -255,10 +255,10 @@ static void *run_test_task_tid(void *arg) union bpf_iter_link_info linfo; int num_unknown_tid, num_known_tid; - ASSERT_NEQ(getpid(), syscall(SYS_gettid), "check_new_thread_id"); + ASSERT_NEQ(getpid(), sys_gettid(), "check_new_thread_id"); memset(&linfo, 0, sizeof(linfo)); - linfo.task.tid = syscall(SYS_gettid); + linfo.task.tid = sys_gettid(); opts.link_info = &linfo; opts.link_info_len = sizeof(linfo); test_task_common(&opts, 0, 1); diff --git a/tools/testing/selftests/bpf/prog_tests/cgrp_local_storage.c b/tools/testing/selftests/bpf/prog_tests/cgrp_local_storage.c index 747761572098..9015e2c2ab12 100644 --- a/tools/testing/selftests/bpf/prog_tests/cgrp_local_storage.c +++ b/tools/testing/selftests/bpf/prog_tests/cgrp_local_storage.c @@ -63,14 +63,14 @@ static void test_tp_btf(int cgroup_fd) if (!ASSERT_OK(err, "map_delete_elem")) goto out; - skel->bss->target_pid = syscall(SYS_gettid); + skel->bss->target_pid = sys_gettid(); err = cgrp_ls_tp_btf__attach(skel); if (!ASSERT_OK(err, "skel_attach")) goto out; - syscall(SYS_gettid); - syscall(SYS_gettid); + sys_gettid(); + sys_gettid(); skel->bss->target_pid = 0; @@ -154,7 +154,7 @@ static void test_recursion(int cgroup_fd) goto out; /* trigger sys_enter, make sure it does not cause deadlock */ - syscall(SYS_gettid); + sys_gettid(); out: cgrp_ls_recursion__destroy(skel); @@ -224,7 +224,7 @@ static void test_yes_rcu_lock(__u64 cgroup_id) return; CGROUP_MODE_SET(skel); - skel->bss->target_pid = syscall(SYS_gettid); + skel->bss->target_pid = sys_gettid(); bpf_program__set_autoload(skel->progs.yes_rcu_lock, true); err = cgrp_ls_sleepable__load(skel); diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c index 26019313e1fc..1c682550e0e7 100644 --- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c +++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c @@ -1010,7 +1010,7 @@ static void run_core_reloc_tests(bool use_btfgen) struct data *data; void *mmap_data = NULL; - my_pid_tgid = getpid() | ((uint64_t)syscall(SYS_gettid) << 32); + my_pid_tgid = getpid() | ((uint64_t)sys_gettid() << 32); for (i = 0; i < ARRAY_SIZE(test_cases); i++) { char btf_file[] = "/tmp/core_reloc.btf.XXXXXX"; diff --git a/tools/testing/selftests/bpf/prog_tests/linked_funcs.c b/tools/testing/selftests/bpf/prog_tests/linked_funcs.c index cad664546912..fa639b021f7e 100644 --- a/tools/testing/selftests/bpf/prog_tests/linked_funcs.c +++ b/tools/testing/selftests/bpf/prog_tests/linked_funcs.c @@ -20,7 +20,7 @@ void test_linked_funcs(void) bpf_program__set_autoload(skel->progs.handler1, true); bpf_program__set_autoload(skel->progs.handler2, true); - skel->rodata->my_tid = syscall(SYS_gettid); + skel->rodata->my_tid = sys_gettid(); skel->bss->syscall_id = SYS_getpgid; err = linked_funcs__load(skel); diff --git a/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c b/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c index c29787e092d6..761ce24bce38 100644 --- a/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c +++ b/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c @@ -23,7 +23,7 @@ static int get_pid_tgid(pid_t *pid, pid_t *tgid, struct stat st; int err; - *pid = syscall(SYS_gettid); + *pid = sys_gettid(); *tgid = getpid(); err = stat("/proc/self/ns/pid", &st); diff --git a/tools/testing/selftests/bpf/prog_tests/rcu_read_lock.c b/tools/testing/selftests/bpf/prog_tests/rcu_read_lock.c index a1f7e7378a64..ebe0c12b5536 100644 --- a/tools/testing/selftests/bpf/prog_tests/rcu_read_lock.c +++ b/tools/testing/selftests/bpf/prog_tests/rcu_read_lock.c @@ -21,7 +21,7 @@ static void test_success(void) if (!ASSERT_OK_PTR(skel, "skel_open")) return; - skel->bss->target_pid = syscall(SYS_gettid); + skel->bss->target_pid = sys_gettid(); bpf_program__set_autoload(skel->progs.get_cgroup_id, true); bpf_program__set_autoload(skel->progs.task_succ, true); @@ -58,7 +58,7 @@ static void test_rcuptr_acquire(void) if (!ASSERT_OK_PTR(skel, "skel_open")) return; - skel->bss->target_pid = syscall(SYS_gettid); + skel->bss->target_pid = sys_gettid(); bpf_program__set_autoload(skel->progs.task_acquire, true); err = rcu_read_lock__load(skel); diff --git a/tools/testing/selftests/bpf/prog_tests/task_local_storage.c b/tools/testing/selftests/bpf/prog_tests/task_local_storage.c index c33c05161a9e..0d42ce00166f 100644 --- a/tools/testing/selftests/bpf/prog_tests/task_local_storage.c +++ b/tools/testing/selftests/bpf/prog_tests/task_local_storage.c @@ -23,14 +23,14 @@ static void test_sys_enter_exit(void) if (!ASSERT_OK_PTR(skel, "skel_open_and_load")) return; - skel->bss->target_pid = syscall(SYS_gettid); + skel->bss->target_pid = sys_gettid(); err = task_local_storage__attach(skel); if (!ASSERT_OK(err, "skel_attach")) goto out; - syscall(SYS_gettid); - syscall(SYS_gettid); + sys_gettid(); + sys_gettid(); /* 3x syscalls: 1x attach and 2x gettid */ ASSERT_EQ(skel->bss->enter_cnt, 3, "enter_cnt"); @@ -99,7 +99,7 @@ static void test_recursion(void) /* trigger sys_enter, make sure it does not cause deadlock */ skel->bss->test_pid = getpid(); - syscall(SYS_gettid); + sys_gettid(); skel->bss->test_pid = 0; task_ls_recursion__detach(skel); diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c index c1ac813ff9ba..02a484b22aa6 100644 --- a/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c +++ b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c @@ -125,7 +125,7 @@ static void *child_thread(void *ctx) struct child *child = ctx; int c = 0, err; - child->tid = syscall(SYS_gettid); + child->tid = sys_gettid(); /* let parent know we are ready */ err = write(child->c2p[1], &c, 1); diff --git a/tools/testing/selftests/damon/damon_nr_regions.py b/tools/testing/selftests/damon/damon_nr_regions.py index 2e8a74aff543..58f3291fed12 100755 --- a/tools/testing/selftests/damon/damon_nr_regions.py +++ b/tools/testing/selftests/damon/damon_nr_regions.py @@ -65,6 +65,7 @@ def test_nr_regions(real_nr_regions, min_nr_regions, max_nr_regions): test_name = 'nr_regions test with %d/%d/%d real/min/max nr_regions' % ( real_nr_regions, min_nr_regions, max_nr_regions) + collected_nr_regions.sort() if (collected_nr_regions[0] < min_nr_regions or collected_nr_regions[-1] > max_nr_regions): print('fail %s' % test_name) @@ -109,6 +110,7 @@ def main(): attrs = kdamonds.kdamonds[0].contexts[0].monitoring_attrs attrs.min_nr_regions = 3 attrs.max_nr_regions = 7 + attrs.update_us = 100000 err = kdamonds.kdamonds[0].commit() if err is not None: proc.terminate() diff --git a/tools/testing/selftests/damon/damos_quota.py b/tools/testing/selftests/damon/damos_quota.py index 7d4c6bb2e3cd..57c4937aaed2 100755 --- a/tools/testing/selftests/damon/damos_quota.py +++ b/tools/testing/selftests/damon/damos_quota.py @@ -51,16 +51,19 @@ def main(): nr_quota_exceeds = scheme.stats.qt_exceeds wss_collected.sort() + nr_expected_quota_exceeds = 0 for wss in wss_collected: if wss > sz_quota: print('quota is not kept: %s > %s' % (wss, sz_quota)) print('collected samples are as below') print('\n'.join(['%d' % wss for wss in wss_collected])) exit(1) + if wss == sz_quota: + nr_expected_quota_exceeds += 1 - if nr_quota_exceeds < len(wss_collected): - print('quota is not always exceeded: %d > %d' % - (len(wss_collected), nr_quota_exceeds)) + if nr_quota_exceeds < nr_expected_quota_exceeds: + print('quota is exceeded less than expected: %d < %d' % + (nr_quota_exceeds, nr_expected_quota_exceeds)) exit(1) if __name__ == '__main__': diff --git a/tools/testing/selftests/damon/damos_quota_goal.py b/tools/testing/selftests/damon/damos_quota_goal.py index 18246f3b62f7..f76e0412b564 100755 --- a/tools/testing/selftests/damon/damos_quota_goal.py +++ b/tools/testing/selftests/damon/damos_quota_goal.py @@ -63,6 +63,9 @@ def main(): if last_effective_bytes != 0 else -1.0)) if last_effective_bytes == goal.effective_bytes: + # effective quota was already minimum that cannot be more reduced + if expect_increase is False and last_effective_bytes == 1: + continue print('efective bytes not changed: %d' % goal.effective_bytes) exit(1) diff --git a/tools/testing/selftests/mm/hugepage-mremap.c b/tools/testing/selftests/mm/hugepage-mremap.c index ada9156cc497..c463d1c09c9b 100644 --- a/tools/testing/selftests/mm/hugepage-mremap.c +++ b/tools/testing/selftests/mm/hugepage-mremap.c @@ -15,7 +15,7 @@ #define _GNU_SOURCE #include <stdlib.h> #include <stdio.h> -#include <asm-generic/unistd.h> +#include <unistd.h> #include <sys/mman.h> #include <errno.h> #include <fcntl.h> /* Definition of O_* constants */ diff --git a/tools/testing/selftests/mm/ksm_functional_tests.c b/tools/testing/selftests/mm/ksm_functional_tests.c index 66b4e111b5a2..b61803e36d1c 100644 --- a/tools/testing/selftests/mm/ksm_functional_tests.c +++ b/tools/testing/selftests/mm/ksm_functional_tests.c @@ -11,7 +11,7 @@ #include <string.h> #include <stdbool.h> #include <stdint.h> -#include <asm-generic/unistd.h> +#include <unistd.h> #include <errno.h> #include <fcntl.h> #include <sys/mman.h> @@ -369,6 +369,7 @@ static void test_unmerge_discarded(void) munmap(map, size); } +#ifdef __NR_userfaultfd static void test_unmerge_uffd_wp(void) { struct uffdio_writeprotect uffd_writeprotect; @@ -429,6 +430,7 @@ static void test_unmerge_uffd_wp(void) unmap: munmap(map, size); } +#endif /* Verify that KSM can be enabled / queried with prctl. */ static void test_prctl(void) @@ -684,7 +686,9 @@ int main(int argc, char **argv) exit(test_child_ksm()); } +#ifdef __NR_userfaultfd tests++; +#endif ksft_print_header(); ksft_set_plan(tests); @@ -696,7 +700,9 @@ int main(int argc, char **argv) test_unmerge(); test_unmerge_zero_pages(); test_unmerge_discarded(); +#ifdef __NR_userfaultfd test_unmerge_uffd_wp(); +#endif test_prot_none(); diff --git a/tools/testing/selftests/mm/memfd_secret.c b/tools/testing/selftests/mm/memfd_secret.c index 74c911aa3aea..9a0597310a76 100644 --- a/tools/testing/selftests/mm/memfd_secret.c +++ b/tools/testing/selftests/mm/memfd_secret.c @@ -17,7 +17,7 @@ #include <stdlib.h> #include <string.h> -#include <asm-generic/unistd.h> +#include <unistd.h> #include <errno.h> #include <stdio.h> #include <fcntl.h> @@ -28,6 +28,8 @@ #define pass(fmt, ...) ksft_test_result_pass(fmt, ##__VA_ARGS__) #define skip(fmt, ...) ksft_test_result_skip(fmt, ##__VA_ARGS__) +#ifdef __NR_memfd_secret + #define PATTERN 0x55 static const int prot = PROT_READ | PROT_WRITE; @@ -332,3 +334,13 @@ int main(int argc, char *argv[]) ksft_finished(); } + +#else /* __NR_memfd_secret */ + +int main(int argc, char *argv[]) +{ + printf("skip: skipping memfd_secret test (missing __NR_memfd_secret)\n"); + return KSFT_SKIP; +} + +#endif /* __NR_memfd_secret */ diff --git a/tools/testing/selftests/mm/mkdirty.c b/tools/testing/selftests/mm/mkdirty.c index 1db134063c38..b8a7efe9204e 100644 --- a/tools/testing/selftests/mm/mkdirty.c +++ b/tools/testing/selftests/mm/mkdirty.c @@ -9,7 +9,7 @@ */ #include <fcntl.h> #include <signal.h> -#include <asm-generic/unistd.h> +#include <unistd.h> #include <string.h> #include <errno.h> #include <stdlib.h> @@ -265,6 +265,7 @@ static void test_pte_mapped_thp(void) munmap(mmap_mem, mmap_size); } +#ifdef __NR_userfaultfd static void test_uffdio_copy(void) { struct uffdio_register uffdio_register; @@ -321,6 +322,7 @@ static void test_uffdio_copy(void) munmap(dst, pagesize); free(src); } +#endif /* __NR_userfaultfd */ int main(void) { @@ -333,7 +335,9 @@ int main(void) thpsize / 1024); tests += 3; } +#ifdef __NR_userfaultfd tests += 1; +#endif /* __NR_userfaultfd */ ksft_print_header(); ksft_set_plan(tests); @@ -363,7 +367,9 @@ int main(void) if (thpsize) test_pte_mapped_thp(); /* Placing a fresh page via userfaultfd may set the PTE dirty. */ +#ifdef __NR_userfaultfd test_uffdio_copy(); +#endif /* __NR_userfaultfd */ err = ksft_get_fail_cnt(); if (err) diff --git a/tools/testing/selftests/mm/mlock2.h b/tools/testing/selftests/mm/mlock2.h index 1e5731bab499..4417eaa5cfb7 100644 --- a/tools/testing/selftests/mm/mlock2.h +++ b/tools/testing/selftests/mm/mlock2.h @@ -3,7 +3,6 @@ #include <errno.h> #include <stdio.h> #include <stdlib.h> -#include <asm-generic/unistd.h> static int mlock2_(void *start, size_t len, int flags) { diff --git a/tools/testing/selftests/mm/protection_keys.c b/tools/testing/selftests/mm/protection_keys.c index 4990f7ab4cb7..4fcecfb7b189 100644 --- a/tools/testing/selftests/mm/protection_keys.c +++ b/tools/testing/selftests/mm/protection_keys.c @@ -42,7 +42,7 @@ #include <sys/wait.h> #include <sys/stat.h> #include <fcntl.h> -#include <asm-generic/unistd.h> +#include <unistd.h> #include <sys/ptrace.h> #include <setjmp.h> diff --git a/tools/testing/selftests/mm/uffd-common.c b/tools/testing/selftests/mm/uffd-common.c index 717539eddf98..7ad6ba660c7d 100644 --- a/tools/testing/selftests/mm/uffd-common.c +++ b/tools/testing/selftests/mm/uffd-common.c @@ -673,7 +673,11 @@ int uffd_open_dev(unsigned int flags) int uffd_open_sys(unsigned int flags) { +#ifdef __NR_userfaultfd return syscall(__NR_userfaultfd, flags); +#else + return -1; +#endif } int uffd_open(unsigned int flags) diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c index a4b83280998a..944d559ade21 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -33,10 +33,11 @@ * pthread_mutex_lock will also verify the atomicity of the memory * transfer (UFFDIO_COPY). */ -#include <asm-generic/unistd.h> + #include "uffd-common.h" uint64_t features; +#ifdef __NR_userfaultfd #define BOUNCE_RANDOM (1<<0) #define BOUNCE_RACINGFAULTS (1<<1) @@ -471,3 +472,15 @@ int main(int argc, char **argv) nr_pages, nr_pages_per_cpu); return userfaultfd_stress(); } + +#else /* __NR_userfaultfd */ + +#warning "missing __NR_userfaultfd definition" + +int main(void) +{ + printf("skip: Skipping userfaultfd test (missing __NR_userfaultfd)\n"); + return KSFT_SKIP; +} + +#endif /* __NR_userfaultfd */ diff --git a/tools/testing/selftests/mm/uffd-unit-tests.c b/tools/testing/selftests/mm/uffd-unit-tests.c index a2e71b1636e7..3ddbb0a71b9c 100644 --- a/tools/testing/selftests/mm/uffd-unit-tests.c +++ b/tools/testing/selftests/mm/uffd-unit-tests.c @@ -5,11 +5,12 @@ * Copyright (C) 2015-2023 Red Hat, Inc. */ -#include <asm-generic/unistd.h> #include "uffd-common.h" #include "../../../../mm/gup_test.h" +#ifdef __NR_userfaultfd + /* The unit test doesn't need a large or random size, make it 32MB for now */ #define UFFD_TEST_MEM_SIZE (32UL << 20) @@ -1558,3 +1559,14 @@ int main(int argc, char *argv[]) return ksft_get_fail_cnt() ? KSFT_FAIL : KSFT_PASS; } +#else /* __NR_userfaultfd */ + +#warning "missing __NR_userfaultfd definition" + +int main(void) +{ + printf("Skipping %s (missing __NR_userfaultfd)\n", __file__); + return KSFT_SKIP; +} + +#endif /* __NR_userfaultfd */ diff --git a/usr/include/Makefile b/usr/include/Makefile index 771e32872b2a..58173cfe5ff1 100644 --- a/usr/include/Makefile +++ b/usr/include/Makefile @@ -10,7 +10,7 @@ UAPI_CFLAGS := -std=c90 -Wall -Werror=implicit-function-declaration # In theory, we do not care -m32 or -m64 for header compile tests. # It is here just because CONFIG_CC_CAN_LINK is tested with -m32 or -m64. -UAPI_CFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CFLAGS)) +UAPI_CFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)) # USERCFLAGS might contain sysroot location for CC. UAPI_CFLAGS += $(USERCFLAGS)
