The patch titled
Subject: powerpc: use asm-generic/cacheflush.h
has been removed from the -mm tree. Its filename was
powerpc-use-asm-generic-cacheflushh.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Christoph Hellwig <hch@xxxxxx>
Subject: powerpc: use asm-generic/cacheflush.h
Power needs almost no cache flushing routines of its own. Rely on
asm-generic/cacheflush.h for the defaults.
Also remove the pointless __KERNEL__ ifdef while we're at it.
Link: http://lkml.kernel.org/r/20200515143646.3857579-17-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/include/asm/cacheflush.h | 42 +++++-------------------
1 file changed, 10 insertions(+), 32 deletions(-)
--- a/arch/powerpc/include/asm/cacheflush.h~powerpc-use-asm-generic-cacheflushh
+++ a/arch/powerpc/include/asm/cacheflush.h
@@ -4,23 +4,9 @@
#ifndef _ASM_POWERPC_CACHEFLUSH_H
#define _ASM_POWERPC_CACHEFLUSH_H
-#ifdef __KERNEL__
-
#include <linux/mm.h>
#include <asm/cputable.h>
-/*
- * No cache flushing is required when address mappings are changed,
- * because the caches on PowerPCs are physically addressed.
- */
-#define flush_cache_all() do { } while (0)
-#define flush_cache_mm(mm) do { } while (0)
-#define flush_cache_dup_mm(mm) do { } while (0)
-#define flush_cache_range(vma, start, end) do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
-#define flush_icache_page(vma, page) do { } while (0)
-#define flush_cache_vunmap(start, end) do { } while (0)
-
#ifdef CONFIG_PPC_BOOK3S_64
/*
* Book3s has no ptesync after setting a pte, so without this ptesync it's
@@ -33,20 +19,20 @@ static inline void flush_cache_vmap(unsi
{
asm volatile("ptesync" ::: "memory");
}
-#else
-static inline void flush_cache_vmap(unsigned long start, unsigned long end) { }
-#endif
+#define flush_cache_vmap flush_cache_vmap
+#endif /* CONFIG_PPC_BOOK3S_64 */
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
extern void flush_dcache_page(struct page *page);
-#define flush_dcache_mmap_lock(mapping) do { } while (0)
-#define flush_dcache_mmap_unlock(mapping) do { } while (0)
void flush_icache_range(unsigned long start, unsigned long stop);
-extern void flush_icache_user_range(struct vm_area_struct *vma,
- struct page *page, unsigned long addr,
- int len);
-extern void flush_dcache_icache_page(struct page *page);
+#define flush_icache_range flush_icache_range
+
+void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+ unsigned long addr, int len);
+#define flush_icache_user_range flush_icache_user_range
+
+void flush_dcache_icache_page(struct page *page);
void __flush_dcache_icache(void *page);
/**
@@ -111,14 +97,6 @@ static inline void invalidate_dcache_ran
mb(); /* sync */
}
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
- do { \
- memcpy(dst, src, len); \
- flush_icache_user_range(vma, page, vaddr, len); \
- } while (0)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
- memcpy(dst, src, len)
-
-#endif /* __KERNEL__ */
+#include <asm-generic/cacheflush.h>
#endif /* _ASM_POWERPC_CACHEFLUSH_H */
_
Patches currently in -mm which might be from hch@xxxxxx are
amdgpu-a-null-mm-does-not-mean-a-thread-is-a-kthread.patch
kernel-move-use_mm-unuse_mm-to-kthreadc.patch
kernel-move-use_mm-unuse_mm-to-kthreadc-v2.patch
kernel-better-document-the-use_mm-unuse_mm-api-contract.patch
kernel-better-document-the-use_mm-unuse_mm-api-contract-v2.patch
kernel-set-user_ds-in-kthread_use_mm.patch
maccess-unexport-probe_kernel_write-and-probe_user_write.patch
maccess-remove-various-unused-weak-aliases.patch
maccess-remove-duplicate-kerneldoc-comments.patch
maccess-clarify-kerneldoc-comments.patch
maccess-update-the-top-of-file-comment.patch
maccess-rename-strncpy_from_unsafe_user-to-strncpy_from_user_nofault.patch
maccess-rename-strncpy_from_unsafe_strict-to-strncpy_from_kernel_nofault.patch
maccess-rename-strnlen_unsafe_user-to-strnlen_user_nofault.patch
maccess-remove-probe_read_common-and-probe_write_common.patch
maccess-unify-the-probe-kernel-arch-hooks.patch
bpf-factor-out-a-bpf_trace_copy_string-helper.patch
bpf-handle-the-compat-string-in-bpf_trace_copy_string-better.patch
bpf-rework-the-compat-kernel-probe-handling.patch
tracing-kprobes-handle-mixed-kernel-userspace-probes-better.patch
maccess-remove-strncpy_from_unsafe.patch
maccess-always-use-strict-semantics-for-probe_kernel_read.patch
maccess-move-user-access-routines-together.patch
maccess-allow-architectures-to-provide-kernel-probing-directly.patch
x86-use-non-set_fs-based-maccess-routines.patch
maccess-return-erange-when-copy_from_kernel_nofault_allowed-fails.patch
