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Subject[PATCH 00/19] C-SKY(csky) Linux Kernel Port
Date
This patchset adds architecture support to Linux for C-SKY's 32-bit embedded
CPU cores and the patches are based on linux-4.16-rc5.

There are two ABI versions with several CPU cores in this patchset:
ABIv1: ck610 (16-bit instruction, 32-bit data path, VIPT Cache ...)
ABIv2: ck807 ck810 (16/32-bit variable length instruction, PIPT Cache ...)

More information: http://en.c-sky.com

I'm from Hangzhou,China C-SKY Microsystems and responsible for C-SKY Linux
port. My development repo is github.com/c-sky/csky-linux and use buildroot
as our CI-test enviornment. "LTP, Lmbench, uclibc-ng-test ..." will be tested
for every commit. See here for more details:
https://gitlab.com/c-sky/buildroot/pipelines

You can try C-SKY linux in a few steps:
$ git clone https://github.com/c-sky/buildroot.git
$ cd buildroot
$ make qemu_csky_ck807_uclibc_bt_defconfig
$ make
It will download "linux uclibc-ng gcc binutils qemu busybox" source code and build
them into one image. How to run, See:
https://github.com/c-sky/buildroot/blob/master/board/qemu/csky/readme.txt

I've finished uClibc-ng.org upstream and "gcc glibc binutils qemu ..." upstream is
on going and the source code is here:
https://github.com/c-sky

It's my first patchset to linux and any feedback is welcome :)

Guo Ren (19):
csky: Kernel booting
csky: Exception handling and syscall
csky: Cache and TLB routines
csky: MMU and page talbe management
csky: Process management
csky: IRQ handling
csky: Atomic operations
csky: ELF and module probe
csky: VDSO and rt_sigreturn
csky: Signal handling
csky: Library functions
csky: Debug and Ptrace GDB
csky: User access
csky: Misc headers
csky: Build infrastructure
csky: Device tree
csky: defconfig
clocksource: add timer-nationalchip.c
irqchip: add irq-nationalchip.c and irq-csky.c

arch/csky/Kconfig | 203 ++++++++++++
arch/csky/Kconfig.debug | 22 ++
arch/csky/Makefile | 92 ++++++
arch/csky/abiv1/Makefile | 8 +
arch/csky/abiv1/inc/abi/cacheflush.h | 40 +++
arch/csky/abiv1/inc/abi/ckmmu.h | 140 ++++++++
arch/csky/abiv1/inc/abi/entry.h | 171 ++++++++++
arch/csky/abiv1/inc/abi/page.h | 26 ++
arch/csky/abiv1/inc/abi/pgtable-bits.h | 36 ++
arch/csky/abiv1/inc/abi/reg_ops.h | 79 +++++
arch/csky/abiv1/inc/abi/regdef.h | 27 ++
arch/csky/abiv1/inc/abi/vdso.h | 19 ++
arch/csky/abiv1/src/alignment.c | 513 +++++++++++++++++++++++++++++
arch/csky/abiv1/src/bswapdi.c | 18 +
arch/csky/abiv1/src/bswapsi.c | 15 +
arch/csky/abiv1/src/cacheflush.c | 32 ++
arch/csky/abiv1/src/memcpy.S | 344 +++++++++++++++++++
arch/csky/abiv1/src/mmap.c | 65 ++++
arch/csky/abiv2/Makefile | 3 +
arch/csky/abiv2/inc/abi/cacheflush.h | 9 +
arch/csky/abiv2/inc/abi/ckmmu.h | 126 +++++++
arch/csky/abiv2/inc/abi/entry.h | 154 +++++++++
arch/csky/abiv2/inc/abi/fpu.h | 296 +++++++++++++++++
arch/csky/abiv2/inc/abi/page.h | 20 ++
arch/csky/abiv2/inc/abi/pgtable-bits.h | 36 ++
arch/csky/abiv2/inc/abi/reg_ops.h | 86 +++++
arch/csky/abiv2/inc/abi/regdef.h | 28 ++
arch/csky/abiv2/inc/abi/vdso.h | 18 +
arch/csky/abiv2/src/fpu.c | 312 ++++++++++++++++++
arch/csky/abiv2/src/memcpy.c | 43 +++
arch/csky/boot/Makefile | 25 ++
arch/csky/boot/dts/Makefile | 14 +
arch/csky/boot/dts/gx6605s.dts | 159 +++++++++
arch/csky/boot/dts/include/dt-bindings | 1 +
arch/csky/boot/dts/qemu.dts | 87 +++++
arch/csky/configs/gx66xx_defconfig | 549 +++++++++++++++++++++++++++++++
arch/csky/configs/qemu_ck807_defconfig | 541 ++++++++++++++++++++++++++++++
arch/csky/include/asm/Kbuild | 71 ++++
arch/csky/include/asm/addrspace.h | 10 +
arch/csky/include/asm/barrier.h | 14 +
arch/csky/include/asm/bitops.h | 83 +++++
arch/csky/include/asm/cache.h | 32 ++
arch/csky/include/asm/cacheflush.h | 9 +
arch/csky/include/asm/checksum.h | 77 +++++
arch/csky/include/asm/dma-mapping.h | 17 +
arch/csky/include/asm/elf.h | 151 +++++++++
arch/csky/include/asm/fixmap.h | 65 ++++
arch/csky/include/asm/highmem.h | 50 +++
arch/csky/include/asm/io.h | 23 ++
arch/csky/include/asm/irq.h | 12 +
arch/csky/include/asm/irqflags.h | 55 ++++
arch/csky/include/asm/mmu.h | 11 +
arch/csky/include/asm/mmu_context.h | 140 ++++++++
arch/csky/include/asm/page.h | 108 ++++++
arch/csky/include/asm/pgalloc.h | 113 +++++++
arch/csky/include/asm/pgtable.h | 309 +++++++++++++++++
arch/csky/include/asm/processor.h | 140 ++++++++
arch/csky/include/asm/segment.h | 18 +
arch/csky/include/asm/shmparam.h | 10 +
arch/csky/include/asm/string.h | 19 ++
arch/csky/include/asm/syscalls.h | 14 +
arch/csky/include/asm/thread_info.h | 77 +++++
arch/csky/include/asm/tlb.h | 24 ++
arch/csky/include/asm/tlbflush.h | 22 ++
arch/csky/include/asm/traps.h | 39 +++
arch/csky/include/asm/uaccess.h | 408 +++++++++++++++++++++++
arch/csky/include/asm/unistd.h | 4 +
arch/csky/include/asm/user.h | 102 ++++++
arch/csky/include/asm/vdso.h | 12 +
arch/csky/include/uapi/asm/Kbuild | 30 ++
arch/csky/include/uapi/asm/byteorder.h | 14 +
arch/csky/include/uapi/asm/cachectl.h | 13 +
arch/csky/include/uapi/asm/fcntl.h | 13 +
arch/csky/include/uapi/asm/ptrace.h | 97 ++++++
arch/csky/include/uapi/asm/sigcontext.h | 33 ++
arch/csky/include/uapi/asm/signal.h | 164 +++++++++
arch/csky/include/uapi/asm/stat.h | 86 +++++
arch/csky/include/uapi/asm/unistd.h | 100 ++++++
arch/csky/kernel/Makefile | 8 +
arch/csky/kernel/asm-offsets.c | 86 +++++
arch/csky/kernel/atomic.S | 55 ++++
arch/csky/kernel/cpu-probe.c | 63 ++++
arch/csky/kernel/cskyksyms.c | 31 ++
arch/csky/kernel/dumpstack.c | 65 ++++
arch/csky/kernel/entry.S | 408 +++++++++++++++++++++++
arch/csky/kernel/head.S | 20 ++
arch/csky/kernel/irq.c | 41 +++
arch/csky/kernel/module.c | 130 ++++++++
arch/csky/kernel/platform.c | 18 +
arch/csky/kernel/power.c | 31 ++
arch/csky/kernel/process.c | 147 +++++++++
arch/csky/kernel/ptrace.c | 339 +++++++++++++++++++
arch/csky/kernel/setup.c | 157 +++++++++
arch/csky/kernel/signal.c | 379 +++++++++++++++++++++
arch/csky/kernel/syscall.c | 65 ++++
arch/csky/kernel/syscall_table.c | 12 +
arch/csky/kernel/time.c | 15 +
arch/csky/kernel/traps.c | 152 +++++++++
arch/csky/kernel/vdso.c | 89 +++++
arch/csky/kernel/vmlinux.lds.S | 67 ++++
arch/csky/lib/Makefile | 1 +
arch/csky/lib/delay.c | 40 +++
arch/csky/lib/memset.c | 38 +++
arch/csky/lib/usercopy.c | 271 +++++++++++++++
arch/csky/mm/Makefile | 13 +
arch/csky/mm/cachev1.c | 146 ++++++++
arch/csky/mm/cachev2.c | 90 +++++
arch/csky/mm/dma-mapping.c | 250 ++++++++++++++
arch/csky/mm/fault.c | 246 ++++++++++++++
arch/csky/mm/highmem.c | 210 ++++++++++++
arch/csky/mm/init.c | 101 ++++++
arch/csky/mm/ioremap.c | 49 +++
arch/csky/mm/syscache.c | 50 +++
arch/csky/mm/tlb.c | 207 ++++++++++++
arch/csky/oprofile/Makefile | 13 +
arch/csky/oprofile/init.c | 16 +
drivers/clocksource/Makefile | 1 +
drivers/clocksource/timer-nationalchip.c | 149 +++++++++
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-csky.c | 151 +++++++++
drivers/irqchip/irq-nationalchip.c | 196 +++++++++++
121 files changed, 11763 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/abiv1/inc/abi/cacheflush.h
create mode 100644 arch/csky/abiv1/inc/abi/ckmmu.h
create mode 100644 arch/csky/abiv1/inc/abi/entry.h
create mode 100644 arch/csky/abiv1/inc/abi/page.h
create mode 100644 arch/csky/abiv1/inc/abi/pgtable-bits.h
create mode 100644 arch/csky/abiv1/inc/abi/reg_ops.h
create mode 100644 arch/csky/abiv1/inc/abi/regdef.h
create mode 100644 arch/csky/abiv1/inc/abi/vdso.h
create mode 100644 arch/csky/abiv1/src/alignment.c
create mode 100644 arch/csky/abiv1/src/bswapdi.c
create mode 100644 arch/csky/abiv1/src/bswapsi.c
create mode 100644 arch/csky/abiv1/src/cacheflush.c
create mode 100644 arch/csky/abiv1/src/memcpy.S
create mode 100644 arch/csky/abiv1/src/mmap.c
create mode 100644 arch/csky/abiv2/Makefile
create mode 100644 arch/csky/abiv2/inc/abi/cacheflush.h
create mode 100644 arch/csky/abiv2/inc/abi/ckmmu.h
create mode 100644 arch/csky/abiv2/inc/abi/entry.h
create mode 100644 arch/csky/abiv2/inc/abi/fpu.h
create mode 100644 arch/csky/abiv2/inc/abi/page.h
create mode 100644 arch/csky/abiv2/inc/abi/pgtable-bits.h
create mode 100644 arch/csky/abiv2/inc/abi/reg_ops.h
create mode 100644 arch/csky/abiv2/inc/abi/regdef.h
create mode 100644 arch/csky/abiv2/inc/abi/vdso.h
create mode 100644 arch/csky/abiv2/src/fpu.c
create mode 100644 arch/csky/abiv2/src/memcpy.c
create mode 100644 arch/csky/boot/Makefile
create mode 100644 arch/csky/boot/dts/Makefile
create mode 100644 arch/csky/boot/dts/gx6605s.dts
create mode 120000 arch/csky/boot/dts/include/dt-bindings
create mode 100644 arch/csky/boot/dts/qemu.dts
create mode 100644 arch/csky/configs/gx66xx_defconfig
create mode 100644 arch/csky/configs/qemu_ck807_defconfig
create mode 100644 arch/csky/include/asm/Kbuild
create mode 100644 arch/csky/include/asm/addrspace.h
create mode 100644 arch/csky/include/asm/barrier.h
create mode 100644 arch/csky/include/asm/bitops.h
create mode 100644 arch/csky/include/asm/cache.h
create mode 100644 arch/csky/include/asm/cacheflush.h
create mode 100644 arch/csky/include/asm/checksum.h
create mode 100644 arch/csky/include/asm/dma-mapping.h
create mode 100644 arch/csky/include/asm/elf.h
create mode 100644 arch/csky/include/asm/fixmap.h
create mode 100644 arch/csky/include/asm/highmem.h
create mode 100644 arch/csky/include/asm/io.h
create mode 100644 arch/csky/include/asm/irq.h
create mode 100644 arch/csky/include/asm/irqflags.h
create mode 100644 arch/csky/include/asm/mmu.h
create mode 100644 arch/csky/include/asm/mmu_context.h
create mode 100644 arch/csky/include/asm/page.h
create mode 100644 arch/csky/include/asm/pgalloc.h
create mode 100644 arch/csky/include/asm/pgtable.h
create mode 100644 arch/csky/include/asm/processor.h
create mode 100644 arch/csky/include/asm/segment.h
create mode 100644 arch/csky/include/asm/shmparam.h
create mode 100644 arch/csky/include/asm/string.h
create mode 100644 arch/csky/include/asm/syscalls.h
create mode 100644 arch/csky/include/asm/thread_info.h
create mode 100644 arch/csky/include/asm/tlb.h
create mode 100644 arch/csky/include/asm/tlbflush.h
create mode 100644 arch/csky/include/asm/traps.h
create mode 100644 arch/csky/include/asm/uaccess.h
create mode 100644 arch/csky/include/asm/unistd.h
create mode 100644 arch/csky/include/asm/user.h
create mode 100644 arch/csky/include/asm/vdso.h
create mode 100644 arch/csky/include/uapi/asm/Kbuild
create mode 100644 arch/csky/include/uapi/asm/byteorder.h
create mode 100644 arch/csky/include/uapi/asm/cachectl.h
create mode 100644 arch/csky/include/uapi/asm/fcntl.h
create mode 100644 arch/csky/include/uapi/asm/ptrace.h
create mode 100644 arch/csky/include/uapi/asm/sigcontext.h
create mode 100644 arch/csky/include/uapi/asm/signal.h
create mode 100644 arch/csky/include/uapi/asm/stat.h
create mode 100644 arch/csky/include/uapi/asm/unistd.h
create mode 100644 arch/csky/kernel/Makefile
create mode 100644 arch/csky/kernel/asm-offsets.c
create mode 100644 arch/csky/kernel/atomic.S
create mode 100644 arch/csky/kernel/cpu-probe.c
create mode 100644 arch/csky/kernel/cskyksyms.c
create mode 100644 arch/csky/kernel/dumpstack.c
create mode 100644 arch/csky/kernel/entry.S
create mode 100644 arch/csky/kernel/head.S
create mode 100644 arch/csky/kernel/irq.c
create mode 100644 arch/csky/kernel/module.c
create mode 100644 arch/csky/kernel/platform.c
create mode 100644 arch/csky/kernel/power.c
create mode 100644 arch/csky/kernel/process.c
create mode 100644 arch/csky/kernel/ptrace.c
create mode 100644 arch/csky/kernel/setup.c
create mode 100644 arch/csky/kernel/signal.c
create mode 100644 arch/csky/kernel/syscall.c
create mode 100644 arch/csky/kernel/syscall_table.c
create mode 100644 arch/csky/kernel/time.c
create mode 100644 arch/csky/kernel/traps.c
create mode 100644 arch/csky/kernel/vdso.c
create mode 100644 arch/csky/kernel/vmlinux.lds.S
create mode 100644 arch/csky/lib/Makefile
create mode 100644 arch/csky/lib/delay.c
create mode 100644 arch/csky/lib/memset.c
create mode 100644 arch/csky/lib/usercopy.c
create mode 100644 arch/csky/mm/Makefile
create mode 100644 arch/csky/mm/cachev1.c
create mode 100644 arch/csky/mm/cachev2.c
create mode 100644 arch/csky/mm/dma-mapping.c
create mode 100644 arch/csky/mm/fault.c
create mode 100644 arch/csky/mm/highmem.c
create mode 100644 arch/csky/mm/init.c
create mode 100644 arch/csky/mm/ioremap.c
create mode 100644 arch/csky/mm/syscache.c
create mode 100644 arch/csky/mm/tlb.c
create mode 100644 arch/csky/oprofile/Makefile
create mode 100644 arch/csky/oprofile/init.c
create mode 100644 drivers/clocksource/timer-nationalchip.c
create mode 100644 drivers/irqchip/irq-csky.c
create mode 100644 drivers/irqchip/irq-nationalchip.c

--
2.7.4

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