| Message ID | cover.1513577007.git.green.hu@gmail.com |
|---|---|
| Headers | show |
| Series | Andes(nds32) Linux Kernel | expand |
On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: > From: Greentime Hu <greentime@andestech.com> > > This patch introduces some miscellaneous header files. > +static inline void __delay(unsigned long loops) > +{ > + __asm__ __volatile__(".align 2\n" > + "1:\n" > + "\taddi\t%0, %0, -1\n" > + "\tbgtz\t%0, 1b\n" > + :"=r"(loops) > + :"0"(loops)); > +} > + > +static inline void __udelay(unsigned long usecs, unsigned long lpj) > +{ > + usecs *= (unsigned long)(((0x8000000000000000ULL / (500000 / HZ)) + > + 0x80000000ULL) >> 32); > + usecs = (unsigned long)(((unsigned long long)usecs * lpj) >> 32); > + __delay(usecs); > +} Do you have a reliable clocksource that you can read here instead of doing the loop? It's generally preferred to have an accurate delay if at all possible, the delay loop calibration is only for those architectures that don't have any way to observe how much time has passed accurately. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: > new file mode 100644 > index 0000000..90da745 > --- /dev/null > +++ b/arch/nds32/include/uapi/asm/unistd.h > @@ -0,0 +1,12 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// Copyright (C) 2005-2017 Andes Technology Corporation > + > +#define __ARCH_WANT_SYNC_FILE_RANGE2 > + > +/* Use the standard ABI for syscalls */ > +#include <asm-generic/unistd.h> > + > +/* Additional NDS32 specific syscalls. */ > +#define __NR_cacheflush (__NR_arch_specific_syscall) > +#define __NR__llseek __NR_llseek > +__SYSCALL(__NR_cacheflush, sys_cacheflush) I'm still confused by __NR__llseek here, why do you need that one? > +SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, > + unsigned long, prot, unsigned long, flags, > + unsigned long, fd, unsigned long, pgoff) > +{ > + if (pgoff & (~PAGE_MASK >> 12)) > + return -EINVAL; > + > + return sys_mmap_pgoff(addr, len, prot, flags, fd, > + pgoff >> (PAGE_SHIFT - 12)); > +} > + > +SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, > + unsigned long, prot, unsigned long, flags, > + unsigned long, fd, unsigned long, pgoff) > +{ > + if (unlikely(pgoff & ~PAGE_MASK)) > + return -EINVAL; > + > + return sys_mmap_pgoff(addr, len, prot, flags, fd, > + pgoff >> PAGE_SHIFT); > +} And I don't see why you define sys_mmap() in addition to sys_mmap2(). The rest of the syscall handling looks good now. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: > +#define __ASM_NDS32_IO_H > + > +extern void iounmap(void __iomem *addr); The prototype here should probably include 'volatile' to avoid warnings in an allmodconfig build. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
2017-12-18 19:26 GMT+08:00 Arnd Bergmann <arnd@arndb.de>: > On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: > >> +#define __ASM_NDS32_IO_H >> + >> +extern void iounmap(void __iomem *addr); > > The prototype here should probably include 'volatile' to avoid warnings in an > allmodconfig build. > Thanks. I will update it like this. extern void iounmap(volatile void __iomem *addr); -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
2017-12-18 19:19 GMT+08:00 Arnd Bergmann <arnd@arndb.de>: > On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: > > >> new file mode 100644 >> index 0000000..90da745 >> --- /dev/null >> +++ b/arch/nds32/include/uapi/asm/unistd.h >> @@ -0,0 +1,12 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +// Copyright (C) 2005-2017 Andes Technology Corporation >> + >> +#define __ARCH_WANT_SYNC_FILE_RANGE2 >> + >> +/* Use the standard ABI for syscalls */ >> +#include <asm-generic/unistd.h> >> + >> +/* Additional NDS32 specific syscalls. */ >> +#define __NR_cacheflush (__NR_arch_specific_syscall) >> +#define __NR__llseek __NR_llseek >> +__SYSCALL(__NR_cacheflush, sys_cacheflush) > > I'm still confused by __NR__llseek here, why do you need that one? > Dear Arnd: We hoped to solve ABI register alignment problem for llseek in glibc by __NR__llseek. After checking glibc again, I find glibc has same __NR__llseek macro and It's better to solve this problem. So, I will remove this definition in the next version patch. >> +SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, >> + unsigned long, prot, unsigned long, flags, >> + unsigned long, fd, unsigned long, pgoff) >> +{ >> + if (pgoff & (~PAGE_MASK >> 12)) >> + return -EINVAL; >> + >> + return sys_mmap_pgoff(addr, len, prot, flags, fd, >> + pgoff >> (PAGE_SHIFT - 12)); >> +} >> + >> +SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, >> + unsigned long, prot, unsigned long, flags, >> + unsigned long, fd, unsigned long, pgoff) >> +{ >> + if (unlikely(pgoff & ~PAGE_MASK)) >> + return -EINVAL; >> + >> + return sys_mmap_pgoff(addr, len, prot, flags, fd, >> + pgoff >> PAGE_SHIFT); >> +} > > And I don't see why you define sys_mmap() in addition to sys_mmap2(). > This is my mistake. I will remove it in the next version patch. > The rest of the syscall handling looks good now. > > Arnd Thanks Vincent -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi, Arnd: 2017-12-18 19:13 GMT+08:00 Arnd Bergmann <arnd@arndb.de>: > On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: >> From: Greentime Hu <greentime@andestech.com> >> >> This patch introduces some miscellaneous header files. > >> +static inline void __delay(unsigned long loops) >> +{ >> + __asm__ __volatile__(".align 2\n" >> + "1:\n" >> + "\taddi\t%0, %0, -1\n" >> + "\tbgtz\t%0, 1b\n" >> + :"=r"(loops) >> + :"0"(loops)); >> +} >> + >> +static inline void __udelay(unsigned long usecs, unsigned long lpj) >> +{ >> + usecs *= (unsigned long)(((0x8000000000000000ULL / (500000 / HZ)) + >> + 0x80000000ULL) >> 32); >> + usecs = (unsigned long)(((unsigned long long)usecs * lpj) >> 32); >> + __delay(usecs); >> +} > > Do you have a reliable clocksource that you can read here instead of doing the > loop? It's generally preferred to have an accurate delay if at all possible, the > delay loop calibration is only for those architectures that don't have any > way to observe how much time has passed accurately. > We currently only have atcpit100 as clocksource but it is an IP of SoC. These delay API will be unavailable if we changed to another SoC unless all these timer driver provided the same APIs. It may suffer our customers if they forget to port these APIs in their timer drivers when they try to use nds32 in the first beginning. Or maybe I can use a CONFIG_USE_ACCURATE_DELAY to keep these 2 implementions for these purposes? -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, Dec 19, 2017 at 6:34 AM, Greentime Hu <green.hu@gmail.com> wrote: > Hi, Arnd: > > 2017-12-18 19:13 GMT+08:00 Arnd Bergmann <arnd@arndb.de>: >> On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: >>> From: Greentime Hu <greentime@andestech.com> >>> >>> This patch introduces some miscellaneous header files. >> >>> +static inline void __delay(unsigned long loops) >>> +{ >>> + __asm__ __volatile__(".align 2\n" >>> + "1:\n" >>> + "\taddi\t%0, %0, -1\n" >>> + "\tbgtz\t%0, 1b\n" >>> + :"=r"(loops) >>> + :"0"(loops)); >>> +} >>> + >>> +static inline void __udelay(unsigned long usecs, unsigned long lpj) >>> +{ >>> + usecs *= (unsigned long)(((0x8000000000000000ULL / (500000 / HZ)) + >>> + 0x80000000ULL) >> 32); >>> + usecs = (unsigned long)(((unsigned long long)usecs * lpj) >> 32); >>> + __delay(usecs); >>> +} >> >> Do you have a reliable clocksource that you can read here instead of doing the >> loop? It's generally preferred to have an accurate delay if at all possible, the >> delay loop calibration is only for those architectures that don't have any >> way to observe how much time has passed accurately. >> > > We currently only have atcpit100 as clocksource but it is an IP of SoC. > These delay API will be unavailable if we changed to another SoC > unless all these timer driver provided the same APIs. > It may suffer our customers if they forget to port these APIs in their > timer drivers when they try to use nds32 in the first beginning. Ok, thanks for the clarification. > Or maybe I can use a CONFIG_USE_ACCURATE_DELAY to keep these 2 > implementions for these purposes? I'd just add a one-line comment in delay.h to explain that there is no cycle counter in the CPU. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 12/17/2017 10:46 PM, Greentime Hu wrote: > From: Greentime Hu <greentime@andestech.com> > > This patch includes the kernel startup code. It can get dtb pointer > passed from bootloader. It will create a temp mapping by tlb > instructions at beginning and goto start_kernel. > > Signed-off-by: Vincent Chen <vincentc@andestech.com> > Signed-off-by: Greentime Hu <greentime@andestech.com> > --- > arch/nds32/kernel/head.S | 189 ++++++++++++++++++++++ > arch/nds32/kernel/setup.c | 383 +++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 572 insertions(+) > create mode 100644 arch/nds32/kernel/head.S > create mode 100644 arch/nds32/kernel/setup.c > > diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c > new file mode 100644 > index 0000000..7718c58 > --- /dev/null > +++ b/arch/nds32/kernel/setup.c > @@ -0,0 +1,383 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// Copyright (C) 2005-2017 Andes Technology Corporation > + [snip] > +struct cache_info L1_cache_info[2]; > +static void __init dump_cpu_info(int cpu) > +{ > + int i, p = 0; > + char str[sizeof(hwcap_str) + 16]; > + > + for (i = 0; hwcap_str[i]; i++) { > + if (elf_hwcap & (1 << i)) { > + sprintf(str + p, "%s ", hwcap_str[i]); > + p += strlen(hwcap_str[i]) + 1; > + } > + } > + > + pr_info("CPU%d Featuretures: %s\n", cpu, str); Features:
2017-12-19 17:54 GMT+08:00 Arnd Bergmann <arnd@arndb.de>: > On Tue, Dec 19, 2017 at 6:34 AM, Greentime Hu <green.hu@gmail.com> wrote: >> Hi, Arnd: >> >> 2017-12-18 19:13 GMT+08:00 Arnd Bergmann <arnd@arndb.de>: >>> On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: >>>> From: Greentime Hu <greentime@andestech.com> >>>> >>>> This patch introduces some miscellaneous header files. >>> >>>> +static inline void __delay(unsigned long loops) >>>> +{ >>>> + __asm__ __volatile__(".align 2\n" >>>> + "1:\n" >>>> + "\taddi\t%0, %0, -1\n" >>>> + "\tbgtz\t%0, 1b\n" >>>> + :"=r"(loops) >>>> + :"0"(loops)); >>>> +} >>>> + >>>> +static inline void __udelay(unsigned long usecs, unsigned long lpj) >>>> +{ >>>> + usecs *= (unsigned long)(((0x8000000000000000ULL / (500000 / HZ)) + >>>> + 0x80000000ULL) >> 32); >>>> + usecs = (unsigned long)(((unsigned long long)usecs * lpj) >> 32); >>>> + __delay(usecs); >>>> +} >>> >>> Do you have a reliable clocksource that you can read here instead of doing the >>> loop? It's generally preferred to have an accurate delay if at all possible, the >>> delay loop calibration is only for those architectures that don't have any >>> way to observe how much time has passed accurately. >>> >> >> We currently only have atcpit100 as clocksource but it is an IP of SoC. >> These delay API will be unavailable if we changed to another SoC >> unless all these timer driver provided the same APIs. >> It may suffer our customers if they forget to port these APIs in their >> timer drivers when they try to use nds32 in the first beginning. > > Ok, thanks for the clarification. > >> Or maybe I can use a CONFIG_USE_ACCURATE_DELAY to keep these 2 >> implementions for these purposes? > > I'd just add a one-line comment in delay.h to explain that there is no > cycle counter in the CPU. > Thanks. Got it. I will add a one-line comment in delay.h -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
2017-12-20 6:01 GMT+08:00 Randy Dunlap <rdunlap@infradead.org>: > On 12/17/2017 10:46 PM, Greentime Hu wrote: >> From: Greentime Hu <greentime@andestech.com> >> >> This patch includes the kernel startup code. It can get dtb pointer >> passed from bootloader. It will create a temp mapping by tlb >> instructions at beginning and goto start_kernel. >> >> Signed-off-by: Vincent Chen <vincentc@andestech.com> >> Signed-off-by: Greentime Hu <greentime@andestech.com> >> --- >> arch/nds32/kernel/head.S | 189 ++++++++++++++++++++++ >> arch/nds32/kernel/setup.c | 383 +++++++++++++++++++++++++++++++++++++++++++++ >> 2 files changed, 572 insertions(+) >> create mode 100644 arch/nds32/kernel/head.S >> create mode 100644 arch/nds32/kernel/setup.c >> > >> diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c >> new file mode 100644 >> index 0000000..7718c58 >> --- /dev/null >> +++ b/arch/nds32/kernel/setup.c >> @@ -0,0 +1,383 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +// Copyright (C) 2005-2017 Andes Technology Corporation >> + > > [snip] > >> +struct cache_info L1_cache_info[2]; >> +static void __init dump_cpu_info(int cpu) >> +{ >> + int i, p = 0; >> + char str[sizeof(hwcap_str) + 16]; >> + >> + for (i = 0; hwcap_str[i]; i++) { >> + if (elf_hwcap & (1 << i)) { >> + sprintf(str + p, "%s ", hwcap_str[i]); >> + p += strlen(hwcap_str[i]) + 1; >> + } >> + } >> + >> + pr_info("CPU%d Featuretures: %s\n", cpu, str); > > Features: > Thanks Randy. I will fix this typo. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Dec 18, 2017 at 7:46 AM, Greentime Hu <green.hu@gmail.com> wrote: > This is the 4th version patchset to add the Linux kernel port for Andes(nds32) > processors. Almost all of the feedbacks from v3 patchseries has been addressed. > Thanks to everyone who provided feedback on the previous version. > > > This patchset adds core architecture support to Linux for Andestech's > N13, N15, D15, N10, D10 processor cores. > > Based on the 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. > > The patches are based on v4.14-rc8, and can also be found in the > following git tree: > https://github.com/andestech/linux.git nds32-4.14-rc8-v4 > > The build script and toolchain repositories are able to be found here: > https://github.com/andestech/build_script.git > > Freely available instruction set and architecture overview documents can > be found on the following page: > http://www.andestech.com/product.php?cls=9 > > > Vincent Ren-Wei Chen and I will maintain this port. Thanks to everyone who > helped us and contributed to it. :) Any feedback is welcome. Aside from the missing Ack on the sparc patch, everything looks good to get merged from my side this time. I would suggest as next steps: - ask Daniel to include the clocksource driver patches in his tree - Provide a git tree with all the patches you plan to send for inclusion, based on v4.16-rc1. - Add any further changes on top of that branch, without rebasing any further. - give Stephen the git URL for inclusion in linux-next Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
This is the 4th version patchset to add the Linux kernel port for Andes(nds32) processors. Almost all of the feedbacks from v3 patchseries has been addressed. Thanks to everyone who provided feedback on the previous version. This patchset adds core architecture support to Linux for Andestech's N13, N15, D15, N10, D10 processor cores. Based on the 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. The patches are based on v4.14-rc8, and can also be found in the following git tree: https://github.com/andestech/linux.git nds32-4.14-rc8-v4 The build script and toolchain repositories are able to be found here: https://github.com/andestech/build_script.git Freely available instruction set and architecture overview documents can be found on the following page: http://www.andestech.com/product.php?cls=9 Vincent Ren-Wei Chen and I will maintain this port. Thanks to everyone who helped us and contributed to it. :) Any feedback is welcome. 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-email-mark.rutland@arm.com - 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 (33): 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 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 SoC Bindings dt-bindings: interrupt-controller: Andestech Internal Vector Interrupt Controller irqchip: Andestech Internal Vector Interrupt Controller driver net: faraday add nds32 support. Rick Chen (3): clocksource/drivers/atcpit100: Add andestech atcpit100 timer clocksource/drivers/atcpit100: VDSO support dt-bindings: timer: Add andestech atcpit100 timer binding doc .../interrupt-controller/andestech,ativic32.txt | 19 + .../devicetree/bindings/nds32/andestech-boards | 40 + Documentation/devicetree/bindings/nds32/cpus.txt | 37 + .../bindings/timer/andestech,atcpit100-timer.txt | 33 + MAINTAINERS | 11 + arch/nds32/Kconfig | 108 +++ arch/nds32/Kconfig.cpu | 161 ++++ arch/nds32/Makefile | 66 ++ arch/nds32/boot/Makefile | 15 + arch/nds32/boot/dts/Makefile | 8 + arch/nds32/boot/dts/ae3xx.dts | 65 ++ arch/nds32/configs/defconfig | 108 +++ arch/nds32/include/asm/Kbuild | 53 ++ 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 | 38 + arch/nds32/include/asm/dma-mapping.h | 14 + arch/nds32/include/asm/elf.h | 179 ++++ 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 | 142 +++ 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 | 83 ++ arch/nds32/include/asm/page.h | 67 ++ arch/nds32/include/asm/pgalloc.h | 96 ++ arch/nds32/include/asm/pgtable.h | 413 +++++++++ arch/nds32/include/asm/proc-fns.h | 44 + arch/nds32/include/asm/processor.h | 102 +++ arch/nds32/include/asm/ptrace.h | 66 ++ 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 | 78 ++ 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 | 28 + 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 | 12 + 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 | 459 ++++++++++ arch/nds32/kernel/ex-entry.S | 157 ++++ arch/nds32/kernel/ex-exit.S | 193 ++++ arch/nds32/kernel/ex-scall.S | 106 +++ arch/nds32/kernel/head.S | 189 ++++ arch/nds32/kernel/irq.c | 9 + arch/nds32/kernel/module.c | 286 ++++++ arch/nds32/kernel/nds32_ksyms.c | 31 + arch/nds32/kernel/process.c | 204 +++++ arch/nds32/kernel/ptrace.c | 311 +++++++ arch/nds32/kernel/setup.c | 383 ++++++++ arch/nds32/kernel/signal.c | 337 +++++++ arch/nds32/kernel/stacktrace.c | 47 + arch/nds32/kernel/sys_nds32.c | 61 ++ arch/nds32/kernel/syscall_table.c | 17 + arch/nds32/kernel/time.c | 11 + arch/nds32/kernel/traps.c | 428 +++++++++ arch/nds32/kernel/vdso.c | 233 +++++ 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 | 271 ++++++ 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 | 76 ++ 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 | 70 ++ 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 | 609 +++++++++++++ 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 | 540 +++++++++++ arch/nds32/mm/tlb.c | 50 + drivers/clocksource/Kconfig | 7 + drivers/clocksource/Makefile | 1 + drivers/clocksource/timer-atcpit100.c | 273 ++++++ drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-ativic32.c | 107 +++ drivers/net/ethernet/faraday/Kconfig | 6 +- drivers/tty/serial/earlycon.c | 3 +- include/asm-generic/io.h | 18 +- 124 files changed, 12098 insertions(+), 13 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/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