The following changes since commit 7928b2cbe55b2a410a0f5c1f154610059c57b1b2:
Linux 4.16-rc1 (2018-02-11 15:04:29 -0800)
are available in the Git repository at:
ssh://[email protected]/pub/scm/linux/kernel/git/greentime/linux.git tags/nds32-for-linus-4.17
for you to fetch changes up to 6fc61ee69433e7e0433cabd36f78bb5fb3b26524:
nds32: To use the generic dump_stack() (2018-03-16 15:45:23 +0800)
----------------------------------------------------------------
This tag contains the core nds32 Linux port(including interrupt controller
driver and timer driver), which has been through 7 rounds of review on mailing
list.
It is able to boot to shell and passes most LTP-2017 testsuites in nds32 AE3XX
platform.
Total Tests: 1901
Total Skipped Tests: 618
Total Failures: 78
Copied below is the ChangeLog that contains the history of this patch set:
Changes in v7:
- Update cpu binding document to add "andestech,nds32v3" as fallback
- Remove unnecessary configs of arch/nds32/Kconfig
- Use GENERIC_CALIBRATE_DELAY
- Add more help texts for minimum CPU type config
- Update defconfig because of Kconfig changed and bug fixed
- Move early_trap_init() declaration to nds32.h
- Refine dma.c
- Remove apply_relocate() in module.c and include <linux/moduleloader.h> to catch it
- Add do_kernel_restart() in machine_restart()
- Clean up setup.c to remove CONFIG_VGA_CONSOLE and some extern declaration functions
- Add negative dependency for VGA_CONSOLE on nds32
- Refine ptrace.c and arch/nds32/include/asm/ptrace.h
- Refine syscall restart flow and arch/nds32/kernel/signal.c
- Fix a bug in VDSO
- Remove the handling for kernel code unaligned accessing
- Add a description for unaligned access handling in git commit message.
- Rebase to v4.16-rc1
- Replace ACCESS_ONCE with READ_ONCE
- Replace atomic_long_dec(&mm->nr_ptes) with mm_dec_nr_ptes(mm)
- Remove print_symbol(%s) with printk(%pS)
- Add bpf_perf_event.h
- Remove init_stack and init_thread_info
Changes in v6:
- Refine naming for atl2c
- Refine ae3xx.dts
- Remove CONFIG_TIMER_ATCPIT100 in defconfig
- Refine elf.h
- Fix a vdso bug
- Separate arch patchset and timer patchset
- To select TIMER_OF in drivers/clocksource/Kconfig instead of arch/nds32/Kconfig
Changes in v5:
- Remove __NR__llseek and sys_mmap()
- Add a comment to explain that we don't have clocksource cycle counter in the CPU
- Add volatile in iounmap()
- Fix typo Featuretures to Features
- Replace CPU_CACHE_NONALIASING with !CPU_CACHE_ALIASING
- Fix a endian bug when we try to get val = of_get_property(cpu,"clock-frequency", NULL)
- Add screen_info to fix the building error when CONFIG_ VGA_CONSOLE is enabled
- Remove unnecessary msync()
- Add depends on !64BIT || BROKEN for faraday Kconfig because the descriptor only supports 32bit
- Add atl2c binding document
- Remove unnecessary include headers
- Fix a vector table bug. It placed wrong vector handlers for 2 exceptions.
- Fix a vdso bug. It may encounter TLB multi-hit exception because we accidently set it as a global page.
- Add proper isb and barrier after some cache operations
- Fix a bug in system call restart flow. $r0 ~ $r5 does not be recovered before restarting system call
- Fix the build errors for OpenRISC and SPARC because io.h changed.
- Update ae3xx.dts to support atl2c.
Changes in v4:
- Add atcpit100 timer driver due to it include vdso implementations and sent
them together with nds32 may help reviewer to review.
- Update ae3xx.dts for atcpit100 clock setting and remove vdso settings.
- To get cycle counter register by timer driver instead of dts.
- Use "depends on NDS32 || COMPILE_TEST" in atcpit100 driver because it is needed for nds32 vdso
- Update defconfig becasue kconfig rename from CONFIG_CLKSRC_ATCPIT100 to CONFIG_TIMER_ATCPIT100
- Remove ag101p.dts because we are not yet ready for ag101p platform.
- Update copyright style to SPDX-License-Identifier
- Include <linux/uaccess.h> instead of <asm/uaccess.h>
- Add local_irq_save()/local_irq_restore() to protect SR_TLB_VPN in update_mmu_cache().
- Update cpu_dcache_inval_all implementation to make sure all level cache are writeback.
Changes in v3:
- Use arch's io.h instead of generic one
- Add andestech-boards binding document
- Update nds32/cpus.txt binding document
- Remove atcpit100 timer drivers
- Select NO_BOOTMEM and delete HAVE_MEMBLOCK_NODE_MAP
- make CPU_BIG_ENDIAN and CPU_LITTLE_ENDIAN are dependent
- Add cpu type to select HWZOL/CPU_CACHE_ALIASING
- Change CPU_CACHE_NONALIASING to CPU_CACHE_ALIASING
- Remove bootarg from device tree script
- Update ag101p.dts and ae3xx.dts for correct board name.
- Clear and simplify defconfig
- Implement L2C_R_REG/ L2C_W_REG with readl/writel instead of __raw_readl/__raw_writel for endian save
- Remove early_init_dt_add_memory_arch/early_init_dt_alloc_memory_arch to use the generic ones
- Refine devicetree.c
- Fix bug https://lkml.kernel.org/r/1499782590-31366-1-git-send-ema...
- Refine irqchip/irq-ativic32.c implementations
- Add COMPILE_TEST in drivers/net/ethernet/faraday/Kconfig
- Refine cache operations
- Add CONFIG_HW_SUPPORT_UNALIGNMENT_ACCESS
- Fix ZERO_PAGE define
- Remove SA_RESTORER
- Remove uapi/asm/signal.h
- Redefine user_pt_regs
- Remove spinlock.h
- Remove __ARCH_WANT_RENAMEAT and __ARCH_WANT_SYSCALL_OFF_T from unistd.h
- Remove set_fs(USER_DS) because flush_old_exec() will do this setting
- Replace in_atomic() with faulthandler_disabled()
- Add barrier.h
- Select COMMON_CLK
- Add clk_pll in dts
- Add of_clk_init() in arch/nds32/kernel/time.c
Changes in v2:
- Set GENERIC_CALIBRATE_DELAY default n
- Add earlycon support
- Remove earlyprintk
- Add CPU_BIG_ENDIAN, CPU_LITTLE_ENDIAN support
- Refine unalignment access exception handler
- Add VMSPLIT support
- Use only one defconfig
- Change interrupt-cells from 2 to 1
- Refine andestech cpu names in bindings/nds32/cpus.txt
- Get clock frequency in dts because fpga bitmap doesn't include this feature
- Update MAINTAINERS for bindings
- Remove unused configs in Kconfig
- Refine device tree scripts
- Refine coding style
- Use generic ioremap_nocache
- Remove L2CC_PA_BASE define and its codes in head.S. It will be moved to bootloader.
- Set PHYS_OFFSET to 0x0 instead of CONFIG_MEMORY_START
- Remove unused macros
- Simplify cpu_cache_* API
- Change __asm__ __volatile__ to asm volatile
- Refine uaccess.h
- Remove unused/deprecated syscall
- Use generic posix_types.h
- Remove arch_trace_hardirqs_on/arch_trace_hardirqs_off
- Fix bug of restart syscall
- Refine syscall implementations
- Use IS_ENABLED to replace ifdef as possible
- Remove device_initcall(nds32_device_probe)
- Refine vdso implementations
- Refine copy_from_user()/copy_to_user()/clear_user()/get_user()/memmove()/memcpy()
- Refine ioremap.c
- Refine irq-ativic32.c
- Fix a bug of earlycon.c
- Export ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt
- Add atcpit100 driver
----------------------------------------------------------------
Greentime Hu (41):
openrisc: add ioremap_nocache declaration before include asm-generic/io.h and sync ioremap prototype with it.
xtensa: add ioremap_nocache declaration before include asm-generic/io.h.
asm-generic/io.h: move ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt out of ifndef CONFIG_MMU
earlycon: add reg-offset to physical address before mapping
drivers/video/concole: add negative dependency for VGA_CONSOLE on nds32
nds32: Assembly macros and definitions
nds32: Kernel booting and initialization
nds32: Exception handling
nds32: MMU definitions
nds32: MMU initialization
nds32: MMU fault handling and page table management
nds32: Cache and TLB routines
nds32: Process management
nds32: IRQ handling
nds32: Atomic operations
nds32: Device specific operations
nds32: DMA mapping API
nds32: ELF definitions
nds32: System calls handling
nds32: VDSO support
nds32: Signal handling support
nds32: Library functions
nds32: Debugging support
nds32: L2 cache support
nds32: Loadable modules
nds32: Generic timers support
nds32: Device tree support
nds32: Miscellaneous header files
nds32: defconfig
nds32: Build infrastructure
MAINTAINERS: Add nds32
dt-bindings: nds32 CPU Bindings
dt-bindings: nds32 L2 cache controller Bindings
dt-bindings: nds32 SoC Bindings
dt-bindings: interrupt-controller: Andestech Internal Vector Interrupt Controller
irqchip: Andestech Internal Vector Interrupt Controller driver
net: faraday add nds32 support.
nds32: fix building failed if using older version gcc.
nios2: add ioremap_nocache declaration before include asm-generic/io.h.
nds32: fix building failed if using elf toolchain.
nds32: To use the generic dump_stack()
Rick Chen (3):
clocksource/drivers/atcpit100: Add andestech atcpit100 timer
clocksource/drivers/atcpit100: VDSO support
dt-bindings: timer: Add andestech atcpit100 timer binding doc
Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt | 19 +++
Documentation/devicetree/bindings/nds32/andestech-boards | 40 +++++
Documentation/devicetree/bindings/nds32/atl2c.txt | 28 +++
Documentation/devicetree/bindings/nds32/cpus.txt | 38 +++++
Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt | 33 ++++
MAINTAINERS | 11 ++
arch/nds32/Kconfig | 103 +++++++++++
arch/nds32/Kconfig.cpu | 174 +++++++++++++++++++
arch/nds32/Makefile | 67 ++++++++
arch/nds32/boot/Makefile | 15 ++
arch/nds32/boot/dts/Makefile | 8 +
arch/nds32/boot/dts/ae3xx.dts | 85 ++++++++++
arch/nds32/configs/defconfig | 104 ++++++++++++
arch/nds32/include/asm/Kbuild | 55 ++++++
arch/nds32/include/asm/assembler.h | 39 +++++
arch/nds32/include/asm/barrier.h | 15 ++
arch/nds32/include/asm/bitfield.h | 963 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
arch/nds32/include/asm/cache.h | 12 ++
arch/nds32/include/asm/cache_info.h | 13 ++
arch/nds32/include/asm/cacheflush.h | 44 +++++
arch/nds32/include/asm/current.h | 12 ++
arch/nds32/include/asm/delay.h | 39 +++++
arch/nds32/include/asm/dma-mapping.h | 14 ++
arch/nds32/include/asm/elf.h | 171 +++++++++++++++++++
arch/nds32/include/asm/fixmap.h | 29 ++++
arch/nds32/include/asm/futex.h | 103 +++++++++++
arch/nds32/include/asm/highmem.h | 65 +++++++
arch/nds32/include/asm/io.h | 83 +++++++++
arch/nds32/include/asm/irqflags.h | 36 ++++
arch/nds32/include/asm/l2_cache.h | 137 +++++++++++++++
arch/nds32/include/asm/linkage.h | 11 ++
arch/nds32/include/asm/memory.h | 105 ++++++++++++
arch/nds32/include/asm/mmu.h | 12 ++
arch/nds32/include/asm/mmu_context.h | 68 ++++++++
arch/nds32/include/asm/module.h | 11 ++
arch/nds32/include/asm/nds32.h | 81 +++++++++
arch/nds32/include/asm/page.h | 67 ++++++++
arch/nds32/include/asm/pgalloc.h | 96 +++++++++++
arch/nds32/include/asm/pgtable.h | 409 ++++++++++++++++++++++++++++++++++++++++++++
arch/nds32/include/asm/proc-fns.h | 44 +++++
arch/nds32/include/asm/processor.h | 103 +++++++++++
arch/nds32/include/asm/ptrace.h | 77 +++++++++
arch/nds32/include/asm/shmparam.h | 19 +++
arch/nds32/include/asm/string.h | 17 ++
arch/nds32/include/asm/swab.h | 35 ++++
arch/nds32/include/asm/syscall.h | 188 ++++++++++++++++++++
arch/nds32/include/asm/syscalls.h | 13 ++
arch/nds32/include/asm/thread_info.h | 76 +++++++++
arch/nds32/include/asm/tlb.h | 28 +++
arch/nds32/include/asm/tlbflush.h | 47 +++++
arch/nds32/include/asm/uaccess.h | 283 ++++++++++++++++++++++++++++++
arch/nds32/include/asm/unistd.h | 6 +
arch/nds32/include/asm/vdso.h | 24 +++
arch/nds32/include/asm/vdso_datapage.h | 36 ++++
arch/nds32/include/asm/vdso_timer_info.h | 14 ++
arch/nds32/include/uapi/asm/Kbuild | 29 ++++
arch/nds32/include/uapi/asm/auxvec.h | 12 ++
arch/nds32/include/uapi/asm/byteorder.h | 13 ++
arch/nds32/include/uapi/asm/cachectl.h | 14 ++
arch/nds32/include/uapi/asm/param.h | 11 ++
arch/nds32/include/uapi/asm/ptrace.h | 25 +++
arch/nds32/include/uapi/asm/sigcontext.h | 60 +++++++
arch/nds32/include/uapi/asm/unistd.h | 11 ++
arch/nds32/kernel/Makefile | 23 +++
arch/nds32/kernel/asm-offsets.c | 28 +++
arch/nds32/kernel/atl2c.c | 64 +++++++
arch/nds32/kernel/cacheinfo.c | 49 ++++++
arch/nds32/kernel/devtree.c | 19 +++
arch/nds32/kernel/dma.c | 477 +++++++++++++++++++++++++++++++++++++++++++++++++++
arch/nds32/kernel/ex-entry.S | 157 +++++++++++++++++
arch/nds32/kernel/ex-exit.S | 184 ++++++++++++++++++++
arch/nds32/kernel/ex-scall.S | 98 +++++++++++
arch/nds32/kernel/head.S | 188 ++++++++++++++++++++
arch/nds32/kernel/irq.c | 9 +
arch/nds32/kernel/module.c | 278 ++++++++++++++++++++++++++++++
arch/nds32/kernel/nds32_ksyms.c | 31 ++++
arch/nds32/kernel/process.c | 208 +++++++++++++++++++++++
arch/nds32/kernel/ptrace.c | 119 +++++++++++++
arch/nds32/kernel/setup.c | 363 +++++++++++++++++++++++++++++++++++++++
arch/nds32/kernel/signal.c | 324 +++++++++++++++++++++++++++++++++++
arch/nds32/kernel/stacktrace.c | 47 +++++
arch/nds32/kernel/sys_nds32.c | 50 ++++++
arch/nds32/kernel/syscall_table.c | 17 ++
arch/nds32/kernel/time.c | 11 ++
arch/nds32/kernel/traps.c | 430 ++++++++++++++++++++++++++++++++++++++++++++++
arch/nds32/kernel/vdso.c | 230 +++++++++++++++++++++++++
arch/nds32/kernel/vdso/Makefile | 82 +++++++++
arch/nds32/kernel/vdso/datapage.S | 21 +++
arch/nds32/kernel/vdso/gen_vdso_offsets.sh | 15 ++
arch/nds32/kernel/vdso/gettimeofday.c | 270 +++++++++++++++++++++++++++++
arch/nds32/kernel/vdso/note.S | 11 ++
arch/nds32/kernel/vdso/sigreturn.S | 19 +++
arch/nds32/kernel/vdso/vdso.S | 18 ++
arch/nds32/kernel/vdso/vdso.lds.S | 75 ++++++++
arch/nds32/kernel/vmlinux.lds.S | 57 +++++++
arch/nds32/lib/Makefile | 3 +
arch/nds32/lib/clear_user.S | 42 +++++
arch/nds32/lib/copy_from_user.S | 45 +++++
arch/nds32/lib/copy_page.S | 37 ++++
arch/nds32/lib/copy_template.S | 69 ++++++++
arch/nds32/lib/copy_to_user.S | 45 +++++
arch/nds32/lib/memcpy.S | 30 ++++
arch/nds32/lib/memmove.S | 70 ++++++++
arch/nds32/lib/memset.S | 33 ++++
arch/nds32/lib/memzero.S | 18 ++
arch/nds32/mm/Makefile | 7 +
arch/nds32/mm/alignment.c | 576 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
arch/nds32/mm/cacheflush.c | 322 +++++++++++++++++++++++++++++++++++
arch/nds32/mm/extable.c | 16 ++
arch/nds32/mm/fault.c | 410 ++++++++++++++++++++++++++++++++++++++++++++
arch/nds32/mm/highmem.c | 79 +++++++++
arch/nds32/mm/init.c | 277 ++++++++++++++++++++++++++++++
arch/nds32/mm/ioremap.c | 62 +++++++
arch/nds32/mm/mm-nds32.c | 90 ++++++++++
arch/nds32/mm/mmap.c | 73 ++++++++
arch/nds32/mm/proc.c | 533 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
arch/nds32/mm/tlb.c | 50 ++++++
arch/nios2/include/asm/io.h | 1 +
arch/openrisc/include/asm/io.h | 3 +-
arch/sparc/include/asm/io_32.h | 5 -
arch/sparc/kernel/ioport.c | 4 +-
arch/xtensa/include/asm/io.h | 1 +
drivers/clocksource/Kconfig | 9 +
drivers/clocksource/Makefile | 1 +
drivers/clocksource/timer-atcpit100.c | 266 +++++++++++++++++++++++++++++
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-ativic32.c | 107 ++++++++++++
drivers/net/ethernet/faraday/Kconfig | 8 +-
drivers/tty/serial/earlycon.c | 3 +-
drivers/video/console/Kconfig | 2 +-
include/asm-generic/io.h | 18 +-
131 files changed, 11866 insertions(+), 22 deletions(-)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt
create mode 100644 Documentation/devicetree/bindings/nds32/andestech-boards
create mode 100644 Documentation/devicetree/bindings/nds32/atl2c.txt
create mode 100644 Documentation/devicetree/bindings/nds32/cpus.txt
create mode 100644 Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt
create mode 100644 arch/nds32/Kconfig
create mode 100644 arch/nds32/Kconfig.cpu
create mode 100644 arch/nds32/Makefile
create mode 100644 arch/nds32/boot/Makefile
create mode 100644 arch/nds32/boot/dts/Makefile
create mode 100644 arch/nds32/boot/dts/ae3xx.dts
create mode 100644 arch/nds32/configs/defconfig
create mode 100644 arch/nds32/include/asm/Kbuild
create mode 100644 arch/nds32/include/asm/assembler.h
create mode 100644 arch/nds32/include/asm/barrier.h
create mode 100644 arch/nds32/include/asm/bitfield.h
create mode 100644 arch/nds32/include/asm/cache.h
create mode 100644 arch/nds32/include/asm/cache_info.h
create mode 100644 arch/nds32/include/asm/cacheflush.h
create mode 100644 arch/nds32/include/asm/current.h
create mode 100644 arch/nds32/include/asm/delay.h
create mode 100644 arch/nds32/include/asm/dma-mapping.h
create mode 100644 arch/nds32/include/asm/elf.h
create mode 100644 arch/nds32/include/asm/fixmap.h
create mode 100644 arch/nds32/include/asm/futex.h
create mode 100644 arch/nds32/include/asm/highmem.h
create mode 100644 arch/nds32/include/asm/io.h
create mode 100644 arch/nds32/include/asm/irqflags.h
create mode 100644 arch/nds32/include/asm/l2_cache.h
create mode 100644 arch/nds32/include/asm/linkage.h
create mode 100644 arch/nds32/include/asm/memory.h
create mode 100644 arch/nds32/include/asm/mmu.h
create mode 100644 arch/nds32/include/asm/mmu_context.h
create mode 100644 arch/nds32/include/asm/module.h
create mode 100644 arch/nds32/include/asm/nds32.h
create mode 100644 arch/nds32/include/asm/page.h
create mode 100644 arch/nds32/include/asm/pgalloc.h
create mode 100644 arch/nds32/include/asm/pgtable.h
create mode 100644 arch/nds32/include/asm/proc-fns.h
create mode 100644 arch/nds32/include/asm/processor.h
create mode 100644 arch/nds32/include/asm/ptrace.h
create mode 100644 arch/nds32/include/asm/shmparam.h
create mode 100644 arch/nds32/include/asm/string.h
create mode 100644 arch/nds32/include/asm/swab.h
create mode 100644 arch/nds32/include/asm/syscall.h
create mode 100644 arch/nds32/include/asm/syscalls.h
create mode 100644 arch/nds32/include/asm/thread_info.h
create mode 100644 arch/nds32/include/asm/tlb.h
create mode 100644 arch/nds32/include/asm/tlbflush.h
create mode 100644 arch/nds32/include/asm/uaccess.h
create mode 100644 arch/nds32/include/asm/unistd.h
create mode 100644 arch/nds32/include/asm/vdso.h
create mode 100644 arch/nds32/include/asm/vdso_datapage.h
create mode 100644 arch/nds32/include/asm/vdso_timer_info.h
create mode 100644 arch/nds32/include/uapi/asm/Kbuild
create mode 100644 arch/nds32/include/uapi/asm/auxvec.h
create mode 100644 arch/nds32/include/uapi/asm/byteorder.h
create mode 100644 arch/nds32/include/uapi/asm/cachectl.h
create mode 100644 arch/nds32/include/uapi/asm/param.h
create mode 100644 arch/nds32/include/uapi/asm/ptrace.h
create mode 100644 arch/nds32/include/uapi/asm/sigcontext.h
create mode 100644 arch/nds32/include/uapi/asm/unistd.h
create mode 100644 arch/nds32/kernel/Makefile
create mode 100644 arch/nds32/kernel/asm-offsets.c
create mode 100644 arch/nds32/kernel/atl2c.c
create mode 100644 arch/nds32/kernel/cacheinfo.c
create mode 100644 arch/nds32/kernel/devtree.c
create mode 100644 arch/nds32/kernel/dma.c
create mode 100644 arch/nds32/kernel/ex-entry.S
create mode 100644 arch/nds32/kernel/ex-exit.S
create mode 100644 arch/nds32/kernel/ex-scall.S
create mode 100644 arch/nds32/kernel/head.S
create mode 100644 arch/nds32/kernel/irq.c
create mode 100644 arch/nds32/kernel/module.c
create mode 100644 arch/nds32/kernel/nds32_ksyms.c
create mode 100644 arch/nds32/kernel/process.c
create mode 100644 arch/nds32/kernel/ptrace.c
create mode 100644 arch/nds32/kernel/setup.c
create mode 100644 arch/nds32/kernel/signal.c
create mode 100644 arch/nds32/kernel/stacktrace.c
create mode 100644 arch/nds32/kernel/sys_nds32.c
create mode 100644 arch/nds32/kernel/syscall_table.c
create mode 100644 arch/nds32/kernel/time.c
create mode 100644 arch/nds32/kernel/traps.c
create mode 100644 arch/nds32/kernel/vdso.c
create mode 100644 arch/nds32/kernel/vdso/Makefile
create mode 100644 arch/nds32/kernel/vdso/datapage.S
create mode 100755 arch/nds32/kernel/vdso/gen_vdso_offsets.sh
create mode 100644 arch/nds32/kernel/vdso/gettimeofday.c
create mode 100644 arch/nds32/kernel/vdso/note.S
create mode 100644 arch/nds32/kernel/vdso/sigreturn.S
create mode 100644 arch/nds32/kernel/vdso/vdso.S
create mode 100644 arch/nds32/kernel/vdso/vdso.lds.S
create mode 100644 arch/nds32/kernel/vmlinux.lds.S
create mode 100644 arch/nds32/lib/Makefile
create mode 100644 arch/nds32/lib/clear_user.S
create mode 100644 arch/nds32/lib/copy_from_user.S
create mode 100644 arch/nds32/lib/copy_page.S
create mode 100644 arch/nds32/lib/copy_template.S
create mode 100644 arch/nds32/lib/copy_to_user.S
create mode 100644 arch/nds32/lib/memcpy.S
create mode 100644 arch/nds32/lib/memmove.S
create mode 100644 arch/nds32/lib/memset.S
create mode 100644 arch/nds32/lib/memzero.S
create mode 100644 arch/nds32/mm/Makefile
create mode 100644 arch/nds32/mm/alignment.c
create mode 100644 arch/nds32/mm/cacheflush.c
create mode 100644 arch/nds32/mm/extable.c
create mode 100644 arch/nds32/mm/fault.c
create mode 100644 arch/nds32/mm/highmem.c
create mode 100644 arch/nds32/mm/init.c
create mode 100644 arch/nds32/mm/ioremap.c
create mode 100644 arch/nds32/mm/mm-nds32.c
create mode 100644 arch/nds32/mm/mmap.c
create mode 100644 arch/nds32/mm/proc.c
create mode 100644 arch/nds32/mm/tlb.c
create mode 100644 drivers/clocksource/timer-atcpit100.c
create mode 100644 drivers/irqchip/irq-ativic32.c
On Mon, Apr 2, 2018 at 8:01 AM, Greentime Hu <[email protected]> wrote:
> ----------------------------------------------------------------
> This tag contains the core nds32 Linux port(including interrupt controller
> driver and timer driver), which has been through 7 rounds of review on mailing
> list.
Reviewed-by: Arnd Bergmann <[email protected]>
On Sun, Apr 1, 2018 at 11:01 PM, Greentime Hu <[email protected]> wrote:
>
> This tag contains the core nds32 Linux port(including interrupt controller
> driver and timer driver), which has been through 7 rounds of review on mailing
> list.
Can I get an overview of the nds32 architecture (uses, quirks, reasons
for existing?) to add to the initial merge message? Just an overview,
not some kind of architecture manual thing.
Yeah, yeah, I can google it myself and write something up, but it's
the kind of information I'd like to see when merging an architecture I
hadn't really ever heard about, and I suspect most others haven't
either.
Linus
2018-04-03 0:04 GMT+08:00 Linus Torvalds <[email protected]>:
> On Sun, Apr 1, 2018 at 11:01 PM, Greentime Hu <[email protected]> wrote:
>>
>> This tag contains the core nds32 Linux port(including interrupt controller
>> driver and timer driver), which has been through 7 rounds of review on mailing
>> list.
>
> Can I get an overview of the nds32 architecture (uses, quirks, reasons
> for existing?) to add to the initial merge message? Just an overview,
> not some kind of architecture manual thing.
>
> Yeah, yeah, I can google it myself and write something up, but it's
> the kind of information I'd like to see when merging an architecture I
> hadn't really ever heard about, and I suspect most others haven't
> either.
>
Hi, Linus:
Andes nds32 architecture supports Linux for Andes's N10, D10, N13,
N15, D15 processor cores.
Based on the patented 16/32-bit AndeStar RISC-like architecture, we
designed the configurable AndesCore series of embedded processor
families. AndesCores range from highly performance-efficient
small-footprint cores for microcontrollers and deeply-embedded
applications to 1GHz+ cores running Linux, covering general-purpose
N-series cores for a wide range of computing need, DSP-capable
D-series cores for digital signal control, instruction-extensible
E-series cores for application-specific acceleration, and secure
S-series cores for best protection of the most valuable.
Our customers together have shipped over 2.5 billion SoC’s with Andes
processors embedded (including non-MMU IP cores). It will help our
customers to get better Linux support if we are merged into mainline.
On Mon, Apr 2, 2018 at 6:04 PM, Linus Torvalds
<[email protected]> wrote:
> On Sun, Apr 1, 2018 at 11:01 PM, Greentime Hu <[email protected]> wrote:
>>
>> This tag contains the core nds32 Linux port(including interrupt controller
>> driver and timer driver), which has been through 7 rounds of review on mailing
>> list.
>
> Can I get an overview of the nds32 architecture (uses, quirks, reasons
> for existing?) to add to the initial merge message? Just an overview,
> not some kind of architecture manual thing.
>
> Yeah, yeah, I can google it myself and write something up, but it's
> the kind of information I'd like to see when merging an architecture I
> hadn't really ever heard about, and I suspect most others haven't
> either.
The non-marketing description is that this is a fairly conventional
(in a good way) low-end RISC architecture that is usually integrated
into custom microcontroller and SoC designs, competing with
the similar ARM32, ARC, MIPS32, RISC-V, Xtensa and (currently
under review) C-Sky architectures that occupy the same space.
The most interesting bit from my perspective is that Andestech
are already selling a new generation of CPU cores that are
based on 32-bit and 64-bit RISC-V, but are still supporting enough
customers on the existing cores to invest in both.
Arnd