Hi Arnd, Could you help me review the patch, seems the patch is skipped. ref: https://lkml.org/lkml/2018/10/16/224 Thx On Tue, Oct 16, 2018 at 10:58:20AM +0800, Guo Ren wrote: > This patch adds Makefile, Kconfig for build infrastructure. > > Signed-off-by: Guo Ren <ren_guo@xxxxxxxxx> > Cc: Arnd Bergmann <arnd@xxxxxxxx> > --- > Changelog: > - make allmodconfig is OK. > - Use BUILTIN_DTB as string, remove bool define for compile. > - Add xor.h in asm/Kbuild > - Add compat.h in asm/Kbuild. > - Add select DMA_DIRECT_OPS in Kconfig. > - remove kernel/platform.c in Makefile. > --- > --- > arch/csky/Kconfig | 205 +++++++++++++++++++++++++++++++++ > arch/csky/Kconfig.debug | 9 ++ > arch/csky/Makefile | 93 +++++++++++++++ > arch/csky/abiv1/Makefile | 8 ++ > arch/csky/abiv2/Makefile | 10 ++ > arch/csky/boot/Makefile | 24 ++++ > arch/csky/boot/dts/Makefile | 13 +++ > arch/csky/boot/dts/include/dt-bindings | 1 + > arch/csky/include/asm/Kbuild | 72 ++++++++++++ > arch/csky/include/uapi/asm/Kbuild | 33 ++++++ > arch/csky/kernel/Makefile | 8 ++ > arch/csky/lib/Makefile | 1 + > arch/csky/mm/Makefile | 13 +++ > 13 files changed, 490 insertions(+) > create mode 100644 arch/csky/Kconfig > create mode 100644 arch/csky/Kconfig.debug > create mode 100644 arch/csky/Makefile > create mode 100644 arch/csky/abiv1/Makefile > create mode 100644 arch/csky/abiv2/Makefile > create mode 100644 arch/csky/boot/Makefile > create mode 100644 arch/csky/boot/dts/Makefile > create mode 120000 arch/csky/boot/dts/include/dt-bindings > create mode 100644 arch/csky/include/asm/Kbuild > create mode 100644 arch/csky/include/uapi/asm/Kbuild > create mode 100644 arch/csky/kernel/Makefile > create mode 100644 arch/csky/lib/Makefile > create mode 100644 arch/csky/mm/Makefile > > diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig > new file mode 100644 > index 0000000..0a05585 > --- /dev/null > +++ b/arch/csky/Kconfig > @@ -0,0 +1,205 @@ > +config CSKY > + def_bool y > + select ARCH_HAS_SYNC_DMA_FOR_CPU > + select ARCH_HAS_SYNC_DMA_FOR_DEVICE > + select ARCH_USE_BUILTIN_BSWAP > + select ARCH_USE_QUEUED_RWLOCKS if NR_CPUS>2 > + select COMMON_CLK > + select CLKSRC_MMIO > + select CLKSRC_OF > + select DMA_DIRECT_OPS > + select DMA_NONCOHERENT_OPS > + select IRQ_DOMAIN > + select HANDLE_DOMAIN_IRQ > + select DW_APB_TIMER_OF > + select GENERIC_LIB_ASHLDI3 > + select GENERIC_LIB_ASHRDI3 > + select GENERIC_LIB_LSHRDI3 > + select GENERIC_LIB_MULDI3 > + select GENERIC_LIB_CMPDI2 > + select GENERIC_LIB_UCMPDI2 > + select GENERIC_ALLOCATOR > + select GENERIC_ATOMIC64 > + select GENERIC_CLOCKEVENTS > + select GENERIC_CPU_DEVICES > + select GENERIC_IRQ_CHIP > + select GENERIC_IRQ_PROBE > + select GENERIC_IRQ_SHOW > + select GENERIC_IRQ_MULTI_HANDLER > + select GENERIC_SCHED_CLOCK > + select GENERIC_SMP_IDLE_THREAD > + select HAVE_ARCH_TRACEHOOK > + select HAVE_GENERIC_DMA_COHERENT > + select HAVE_KERNEL_GZIP > + select HAVE_KERNEL_LZO > + select HAVE_KERNEL_LZMA > + select HAVE_C_RECORDMCOUNT > + select HAVE_DMA_API_DEBUG > + select HAVE_DMA_CONTIGUOUS > + select HAVE_MEMBLOCK > + select MAY_HAVE_SPARSE_IRQ > + select MODULES_USE_ELF_RELA if MODULES > + select NO_BOOTMEM > + select OF > + select OF_EARLY_FLATTREE > + select OF_RESERVED_MEM > + select PERF_USE_VMALLOC > + select RTC_LIB > + select TIMER_OF > + select USB_ARCH_HAS_EHCI > + select USB_ARCH_HAS_OHCI > + > +config CPU_HAS_CACHEV2 > + bool > + > +config CPU_HAS_FPUV2 > + bool > + > +config CPU_HAS_HILO > + bool > + > +config CPU_HAS_TLBI > + bool > + > +config CPU_HAS_LDSTEX > + bool > + help > + For SMP, CPU needs "ldex&stex" instrcutions to atomic operations. > + > +config CPU_NEED_TLBSYNC > + bool > + > +config CPU_NEED_SOFTALIGN > + bool > + > +config CPU_NO_USER_BKPT > + bool > + help > + For abiv2 we couldn't use "trap 1" as user space bkpt in gdbserver, because > + abiv2 is 16/32bit instruction set and "trap 1" is 32bit. > + So we need a 16bit instruction as user space bkpt, and it will cause an illegal > + instruction exception. > + In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not. > + > +config GENERIC_CALIBRATE_DELAY > + def_bool y > + > +config GENERIC_CSUM > + def_bool y > + > +config GENERIC_HWEIGHT > + def_bool y > + > +config MMU > + def_bool y > + > +config RWSEM_GENERIC_SPINLOCK > + def_bool y > + > +config TIME_LOW_RES > + def_bool y > + > +config TRACE_IRQFLAGS_SUPPORT > + def_bool y > + > +config CPU_TLB_SIZE > + int > + default "128" if (CPU_CK610 || CPU_CK807 || CPU_CK810) > + default "1024" if (CPU_CK860) > + > +config CPU_ASID_BITS > + int > + default "8" if (CPU_CK610 || CPU_CK807 || CPU_CK810) > + default "12" if (CPU_CK860) > + > +config L1_CACHE_SHIFT > + int > + default "4" if (CPU_CK610) > + default "5" if (CPU_CK807 || CPU_CK810) > + default "6" if (CPU_CK860) > + > +menu "Processor type and features" > + > +choice > + prompt "CPU MODEL" > + default CPU_CK807 > + > +config CPU_CK610 > + bool "CSKY CPU ck610" > + select CPU_NEED_TLBSYNC > + select CPU_NEED_SOFTALIGN > + select CPU_NO_USER_BKPT > + > +config CPU_CK810 > + bool "CSKY CPU ck810" > + select CPU_HAS_HILO > + select CPU_NEED_TLBSYNC > + > +config CPU_CK807 > + bool "CSKY CPU ck807" > + select CPU_HAS_HILO > + > +config CPU_CK860 > + bool "CSKY CPU ck860" > + select CPU_HAS_TLBI > + select CPU_HAS_CACHEV2 > + select CPU_HAS_LDSTEX > + select CPU_HAS_FPUV2 > +endchoice > + > +choice > + prompt "Power Manager Instruction (wait/doze/stop)" > + default CPU_PM_NONE > + > +config CPU_PM_NONE > + bool "None" > + > +config CPU_PM_WAIT > + bool "wait" > + > +config CPU_PM_DOZE > + bool "doze" > + > +config CPU_PM_STOP > + bool "stop" > +endchoice > + > +config CPU_HAS_VDSP > + bool "CPU has VDSP coprocessor" > + depends on CPU_HAS_FPU && CPU_HAS_FPUV2 > + > +config CPU_HAS_FPU > + bool "CPU has FPU coprocessor" > + depends on CPU_CK807 || CPU_CK810 || CPU_CK860 > + > +config CPU_HAS_TEE > + bool "CPU has Trusted Execution Environment" > + depends on CPU_CK810 > + > +config SMP > + bool "Symmetric Multi-Processing (SMP) support for C-SKY" > + depends on CPU_CK860 > + default n > + > +config NR_CPUS > + int "Maximum number of CPUs (2-32)" > + range 2 32 > + depends on SMP > + default "2" > + > +config HIGHMEM > + bool "High Memory Support" > + depends on !CPU_CK610 > + default y > + > +config FORCE_MAX_ZONEORDER > + int "Maximum zone order" > + default "11" > + > +config RAM_BASE > + hex "DRAM start addr (the same with memory-section in dts)" > + default 0x0 > + > +endmenu > + > +source "kernel/Kconfig.hz" > diff --git a/arch/csky/Kconfig.debug b/arch/csky/Kconfig.debug > new file mode 100644 > index 0000000..48cf6ff > --- /dev/null > +++ b/arch/csky/Kconfig.debug > @@ -0,0 +1,9 @@ > +menu "C-SKY Debug Options" > +config CSKY_BUILTIN_DTB > + string "Use kernel builtin dtb" > + help > + User could define the dtb instead of the one which is passed from > + bootloader. > + Sometimes for debug, we want to use a built-in dtb and then we needn't > + modify bootloader at all. > +endmenu > diff --git a/arch/csky/Makefile b/arch/csky/Makefile > new file mode 100644 > index 0000000..67a4ae1 > --- /dev/null > +++ b/arch/csky/Makefile > @@ -0,0 +1,93 @@ > +OBJCOPYFLAGS :=-O binary > +GZFLAGS :=-9 > +KBUILD_DEFCONFIG := defconfig > + > +ifdef CONFIG_CPU_HAS_FPU > +FPUEXT = f > +endif > + > +ifdef CONFIG_CPU_HAS_VDSP > +VDSPEXT = v > +endif > + > +ifdef CONFIG_CPU_HAS_TEE > +TEEEXT = t > +endif > + > +ifdef CONFIG_CPU_CK610 > +CPUTYPE = ck610 > +CSKYABI = abiv1 > +endif > + > +ifdef CONFIG_CPU_CK810 > +CPUTYPE = ck810 > +CSKYABI = abiv2 > +endif > + > +ifdef CONFIG_CPU_CK807 > +CPUTYPE = ck807 > +CSKYABI = abiv2 > +endif > + > +ifdef CONFIG_CPU_CK860 > +CPUTYPE = ck860 > +CSKYABI = abiv2 > +endif > + > +ifneq ($(CSKYABI),) > +MCPU_STR = $(CPUTYPE)$(FPUEXT)$(VDSPEXT)$(TEEEXT) > +KBUILD_CFLAGS += -mcpu=$(MCPU_STR) > +KBUILD_CFLAGS += -DCSKYCPU_DEF_NAME=\"$(MCPU_STR)\" > +KBUILD_CFLAGS += -msoft-float -mdiv > +KBUILD_CFLAGS += -fno-tree-vectorize > +endif > + > +KBUILD_CFLAGS += -pipe > +ifeq ($(CSKYABI),abiv2) > +KBUILD_CFLAGS += -mno-stack-size > +endif > + > +abidirs := $(patsubst %,arch/csky/%/,$(CSKYABI)) > +KBUILD_CFLAGS += $(patsubst %,-I$(srctree)/%inc,$(abidirs)) > + > +KBUILD_CPPFLAGS += -mlittle-endian > +LDFLAGS += -EL > + > +KBUILD_AFLAGS += $(KBUILD_CFLAGS) > + > +head-y := arch/csky/kernel/head.o > + > +core-y += arch/csky/kernel/ > +core-y += arch/csky/mm/ > +core-y += arch/csky/$(CSKYABI)/ > + > +libs-y += arch/csky/lib/ \ > + $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name) > + > +boot := arch/csky/boot > +ifneq '$(CONFIG_CSKY_BUILTIN_DTB)' '""' > +core-y += $(boot)/dts/ > +endif > + > +all: zImage > + > + > +dtbs: scripts > + $(Q)$(MAKE) $(build)=$(boot)/dts > + > +%.dtb %.dtb.S %.dtb.o: scripts > + $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ > + > +zImage Image uImage: vmlinux dtbs > + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ > + > +archclean: > + $(Q)$(MAKE) $(clean)=$(boot) > + $(Q)$(MAKE) $(clean)=$(boot)/dts > + rm -rf arch/csky/include/generated > + > +define archhelp > + echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' > + echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' > + echo ' uImage - U-Boot wrapped zImage' > +endef > diff --git a/arch/csky/abiv1/Makefile b/arch/csky/abiv1/Makefile > new file mode 100644 > index 0000000..7c06276 > --- /dev/null > +++ b/arch/csky/abiv1/Makefile > @@ -0,0 +1,8 @@ > +obj-$(CONFIG_CPU_NEED_SOFTALIGN) += alignment.o > +obj-y += bswapdi.o > +obj-y += bswapsi.o > +obj-y += cacheflush.o > +obj-y += mmap.o > +obj-y += memcpy.o > +obj-y += memset.o > +obj-y += strksyms.o > diff --git a/arch/csky/abiv2/Makefile b/arch/csky/abiv2/Makefile > new file mode 100644 > index 0000000..069ca72 > --- /dev/null > +++ b/arch/csky/abiv2/Makefile > @@ -0,0 +1,10 @@ > +obj-y += cacheflush.o > +obj-$(CONFIG_CPU_HAS_FPU) += fpu.o > +obj-y += memcmp.o > +obj-y += memcpy.o > +obj-y += memmove.o > +obj-y += memset.o > +obj-y += strcmp.o > +obj-y += strcpy.o > +obj-y += strlen.o > +obj-y += strksyms.o > diff --git a/arch/csky/boot/Makefile b/arch/csky/boot/Makefile > new file mode 100644 > index 0000000..47d3d72 > --- /dev/null > +++ b/arch/csky/boot/Makefile > @@ -0,0 +1,24 @@ > +targets := Image zImage uImage > +targets += $(dtb-y) > + > +$(obj)/Image: vmlinux FORCE > + $(call if_changed,objcopy) > + @echo ' Kernel: $@ is ready' > + > +compress-$(CONFIG_KERNEL_GZIP) = gzip > +compress-$(CONFIG_KERNEL_LZO) = lzo > +compress-$(CONFIG_KERNEL_LZMA) = lzma > +compress-$(CONFIG_KERNEL_XZ) = xzkern > +compress-$(CONFIG_KERNEL_LZ4) = lz4 > + > +$(obj)/zImage: $(obj)/Image FORCE > + $(call if_changed,$(compress-y)) > + @echo ' Kernel: $@ is ready' > + > +UIMAGE_ARCH = sandbox > +UIMAGE_COMPRESSION = $(compress-y) > +UIMAGE_LOADADDR = $(shell $(NM) vmlinux | awk '$$NF == "_start" {print $$1}') > + > +$(obj)/uImage: $(obj)/zImage > + $(call if_changed,uimage) > + @echo 'Image: $@ is ready' > diff --git a/arch/csky/boot/dts/Makefile b/arch/csky/boot/dts/Makefile > new file mode 100644 > index 0000000..305e81a > --- /dev/null > +++ b/arch/csky/boot/dts/Makefile > @@ -0,0 +1,13 @@ > +dtstree := $(srctree)/$(src) > + > +ifneq '$(CONFIG_CSKY_BUILTIN_DTB)' '""' > +builtindtb-y := $(patsubst "%",%,$(CONFIG_CSKY_BUILTIN_DTB)) > +dtb-y += $(builtindtb-y).dtb > +obj-y += $(builtindtb-y).dtb.o > +.SECONDARY: $(obj)/$(builtindtb-y).dtb.S > +else > +dtb-y := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) > +endif > + > +always += $(dtb-y) > +clean-files += *.dtb *.dtb.S > diff --git a/arch/csky/boot/dts/include/dt-bindings b/arch/csky/boot/dts/include/dt-bindings > new file mode 120000 > index 0000000..08c00e4 > --- /dev/null > +++ b/arch/csky/boot/dts/include/dt-bindings > @@ -0,0 +1 @@ > +../../../../../include/dt-bindings > \ No newline at end of file > diff --git a/arch/csky/include/asm/Kbuild b/arch/csky/include/asm/Kbuild > new file mode 100644 > index 0000000..014eb57 > --- /dev/null > +++ b/arch/csky/include/asm/Kbuild > @@ -0,0 +1,72 @@ > +generic-y += asm-offsets.h > +generic-y += bitsperlong.h > +generic-y += bugs.h > +generic-y += clkdev.h > +generic-y += compat.h > +generic-y += current.h > +generic-y += delay.h > +generic-y += device.h > +generic-y += div64.h > +generic-y += dma.h > +generic-y += dma-contiguous.h > +generic-y += dma-mapping.h > +generic-y += emergency-restart.h > +generic-y += errno.h > +generic-y += exec.h > +generic-y += fb.h > +generic-y += ftrace.h > +generic-y += futex.h > +generic-y += gpio.h > +generic-y += hardirq.h > +generic-y += hw_irq.h > +generic-y += ioctl.h > +generic-y += ioctls.h > +generic-y += irq.h > +generic-y += irq_regs.h > +generic-y += ipcbuf.h > +generic-y += irq_work.h > +generic-y += kdebug.h > +generic-y += kmap_types.h > +generic-y += kprobes.h > +generic-y += kvm_para.h > +generic-y += linkage.h > +generic-y += local.h > +generic-y += local64.h > +generic-y += mman.h > +generic-y += mm-arch-hooks.h > +generic-y += module.h > +generic-y += msgbuf.h > +generic-y += mutex.h > +generic-y += param.h > +generic-y += pci.h > +generic-y += percpu.h > +generic-y += posix_types.h > +generic-y += poll.h > +generic-y += preempt.h > +generic-y += qrwlock.h > +generic-y += resource.h > +generic-y += scatterlist.h > +generic-y += sections.h > +generic-y += sembuf.h > +generic-y += serial.h > +generic-y += setup.h > +generic-y += shmbuf.h > +generic-y += shm.h > +generic-y += siginfo.h > +generic-y += signal.h > +generic-y += socket.h > +generic-y += sockios.h > +generic-y += statfs.h > +generic-y += termbits.h > +generic-y += termios.h > +generic-y += timex.h > +generic-y += topology.h > +generic-y += trace_clock.h > +generic-y += types.h > +generic-y += ucontext.h > +generic-y += unaligned.h > +generic-y += user.h > +generic-y += vga.h > +generic-y += vmlinux.lds.h > +generic-y += word-at-a-time.h > +generic-y += xor.h > diff --git a/arch/csky/include/uapi/asm/Kbuild b/arch/csky/include/uapi/asm/Kbuild > new file mode 100644 > index 0000000..b65252b > --- /dev/null > +++ b/arch/csky/include/uapi/asm/Kbuild > @@ -0,0 +1,33 @@ > +include include/uapi/asm-generic/Kbuild.asm > + > +header-y += cachectl.h > +header-y += stat.h > + > +generic-y += auxvec.h > +generic-y += param.h > +generic-y += bpf_perf_event.h > +generic-y += errno.h > +generic-y += fcntl.h > +generic-y += ioctl.h > +generic-y += ioctls.h > +generic-y += ipcbuf.h > +generic-y += shmbuf.h > +generic-y += bitsperlong.h > +generic-y += mman.h > +generic-y += msgbuf.h > +generic-y += poll.h > +generic-y += posix_types.h > +generic-y += resource.h > +generic-y += sembuf.h > +generic-y += siginfo.h > +generic-y += signal.h > +generic-y += socket.h > +generic-y += sockios.h > +generic-y += statfs.h > +generic-y += stat.h > +generic-y += setup.h > +generic-y += swab.h > +generic-y += termbits.h > +generic-y += termios.h > +generic-y += types.h > +generic-y += ucontext.h > diff --git a/arch/csky/kernel/Makefile b/arch/csky/kernel/Makefile > new file mode 100644 > index 0000000..4422de7 > --- /dev/null > +++ b/arch/csky/kernel/Makefile > @@ -0,0 +1,8 @@ > +extra-y := head.o vmlinux.lds > + > +obj-y += entry.o atomic.o signal.o traps.o irq.o time.o vdso.o > +obj-y += power.o syscall.o syscall_table.o setup.o > +obj-y += process.o cpu-probe.o ptrace.o dumpstack.o > + > +obj-$(CONFIG_MODULES) += module.o > +obj-$(CONFIG_SMP) += smp.o > diff --git a/arch/csky/lib/Makefile b/arch/csky/lib/Makefile > new file mode 100644 > index 0000000..d1f368c > --- /dev/null > +++ b/arch/csky/lib/Makefile > @@ -0,0 +1 @@ > +lib-y := usercopy.o delay.o > diff --git a/arch/csky/mm/Makefile b/arch/csky/mm/Makefile > new file mode 100644 > index 0000000..c870eb3 > --- /dev/null > +++ b/arch/csky/mm/Makefile > @@ -0,0 +1,13 @@ > +ifeq ($(CONFIG_CPU_HAS_CACHEV2),y) > +obj-y += cachev2.o > +else > +obj-y += cachev1.o > +endif > + > +obj-y += dma-mapping.o > +obj-y += fault.o > +obj-$(CONFIG_HIGHMEM) += highmem.o > +obj-y += init.o > +obj-y += ioremap.o > +obj-y += syscache.o > +obj-y += tlb.o > -- > 2.7.4
