[PATCH V4 12/27] csky: ELF and module probe

Signed-off-by: Guo Ren --- arch/csky/include/asm/elf.h | 149 arch/csky/kernel/module.c | 82 2 files changed, 231 insertions(+) create mode 100644 arch/csky/include/asm/elf.h create mode 100644 arch/csky/kernel/module.c

[PATCH V4 11/27] csky: Atomic operations

Signed-off-by: Guo Ren --- arch/csky/include/asm/atomic.h | 215 + arch/csky/include/asm/cmpxchg.h| 70 arch/csky/include/asm/spinlock.h | 286 + arch/csky/include/asm/spinlock_types.h | 35 arch/csky

[PATCH V4 16/27] csky: SMP support

Signed-off-by: Guo Ren --- arch/csky/include/asm/smp.h | 26 + arch/csky/kernel/smp.c | 234 2 files changed, 260 insertions(+) create mode 100644 arch/csky/include/asm/smp.h create mode 100644 arch/csky/kernel/smp.c diff --git a/arch

[PATCH V4 15/27] csky: Debug and Ptrace GDB

Signed-off-by: Guo Ren --- arch/csky/include/asm/bug.h | 26 +++ arch/csky/include/uapi/asm/ptrace.h | 103 arch/csky/kernel/dumpstack.c| 64 arch/csky/kernel/ptrace.c | 317 4 files changed, 510 insertions

[PATCH V4 13/27] csky: Library functions

Signed-off-by: Guo Ren --- arch/csky/abiv1/bswapdi.c| 18 ++ arch/csky/abiv1/bswapsi.c| 14 ++ arch/csky/abiv1/inc/abi/string.h | 13 ++ arch/csky/abiv1/memcpy.S | 344 +++ arch/csky/abiv1/memset.c | 37 + arch/csky

[PATCH V4 17/27] csky: Misc headers

Signed-off-by: Guo Ren --- arch/csky/abiv1/inc/abi/reg_ops.h | 26 +++ arch/csky/abiv1/inc/abi/regdef.h | 25 +++ arch/csky/abiv2/inc/abi/reg_ops.h | 17 ++ arch/csky/abiv2/inc/abi/regdef.h | 26 +++ arch/csky/boot/dts/qemu.dts| 77 + arch/csky

[PATCH V4 19/27] dt-bindings: timer: gx6605s SOC timer

Signed-off-by: Guo Ren --- .../bindings/timer/csky,gx6605s-timer.txt | 42 ++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/csky,gx6605s-timer.txt diff --git a/Documentation/devicetree/bindings/timer/csky,gx6605s

[PATCH V4 21/27] dt-bindings: interrupt-controller: C-SKY APB intc

Signed-off-by: Guo Ren --- .../interrupt-controller/csky,apb-intc.txt | 45 ++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt diff --git a/Documentation/devicetree/bindings/interrupt

[PATCH V4 14/27] csky: User access

Signed-off-by: Guo Ren --- arch/csky/include/asm/uaccess.h | 398 arch/csky/lib/usercopy.c| 271 +++ 2 files changed, 669 insertions(+) create mode 100644 arch/csky/include/asm/uaccess.h create mode 100644 arch/csky/lib

[PATCH V4 24/27] clocksource: add C-SKY SMP timer

This timer is used by SMP system and use mfcr/mtcr instruction to access the regs. Changelog: - Support csky mp timer alpha version. - Just use low-counter with 32bit width as clocksource. - Coding convention with upstream feed-back. Signed-off-by: Guo Ren --- drivers/clocksource

[PATCH V4 25/27] clocksource: add C-SKY timers' build infrastructure

Signed-off-by: Guo Ren --- drivers/clocksource/Kconfig | 15 +++ drivers/clocksource/Makefile | 2 ++ 2 files changed, 17 insertions(+) diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index dec0dd8..6ff0a25 100644 --- a/drivers/clocksource/Kconfig +++ b

[PATCH V4 23/27] clocksource: add gx6605s SOC system timer

Changelog: - Add License and Copyright - Use timer-of framework - Change name with upstream feedback - Use clksource_mmio framework Signed-off-by: Guo Ren --- drivers/clocksource/timer-gx6605s.c | 150 1 file changed, 150 insertions(+) create mode

[PATCH V4 27/27] dt-bindings: Add vendor prefix for csky

Signed-off-by: Guo Ren --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 7cad066..335f9e0 100644 --- a/Documentation

[PATCH V4 22/27] dt-bindings: interrupt-controller: C-SKY SMP intc

Signed-off-by: Guo Ren --- .../bindings/interrupt-controller/csky,mpintc.txt | 40 ++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt diff --git a/Documentation/devicetree/bindings/interrupt

[PATCH V4 20/27] dt-bindings: timer: C-SKY Multi-processor timer

Signed-off-by: Guo Ren --- .../devicetree/bindings/timer/csky,mptimer.txt | 46 ++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/csky,mptimer.txt diff --git a/Documentation/devicetree/bindings/timer/csky,mptimer.txt b

[PATCH V4 26/27] irqchip: add C-SKY irqchip drivers

use irq_domain_add_linear instead of leagcy. - add set_handle_irq(), ref from openrisc & arm. Signed-off-by: Guo Ren --- drivers/irqchip/Makefile| 1 + drivers/irqchip/irq-csky-apb-intc.c | 243 drivers/irqchip/irq-csky-mpintc.c

[PATCH V4 18/27] dt-bindings: csky CPU Bindings

Signed-off-by: Guo Ren --- Documentation/devicetree/bindings/csky/cpus.txt | 70 + 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/csky/cpus.txt diff --git a/Documentation/devicetree/bindings/csky/cpus.txt b/Documentation

Re: [PATCH V4 00/27] C-SKY(csky) Linux Kernel Port

On Wed, Sep 12, 2018 at 04:30:36PM +0200, Arnd Bergmann wrote: > On Wed, Sep 12, 2018 at 3:25 PM Guo Ren wrote: > > > > This is the 3th version patchset to add the Linux kernel port for > > C-SKY(csky). > > Thanks to everyone who provided feedback on the previous ver

Re: [PATCH V4 00/27] C-SKY(csky) Linux Kernel Port

On Fri, Sep 14, 2018 at 04:46:56PM +0200, Arnd Bergmann wrote: > On Fri, Sep 14, 2018 at 4:37 PM Guo Ren wrote: > > On Wed, Sep 12, 2018 at 04:30:36PM +0200, Arnd Bergmann wrote: > > > On Wed, Sep 12, 2018 at 3:25 PM Guo Ren wrote: > > > > > > One big questi

Re: [PATCH V4 00/27] C-SKY(csky) Linux Kernel Port

On Fri, Sep 14, 2018 at 06:09:35PM +0200, Arnd Bergmann wrote: > On Fri, Sep 14, 2018 at 6:02 PM Guo Ren wrote: > > > > On Fri, Sep 14, 2018 at 04:46:56PM +0200, Arnd Bergmann wrote: > > > On Fri, Sep 14, 2018 at 4:37 PM Guo Ren wrote: > > > > > One level

[PATCH V5 00/30] C-SKY(csky) Linux Kernel Port

.h 5d2985f csky: cleanup Kconfig and Makefile. 423d97e csky: cancel subdirectories cae2af4 csky: use asm-generic/fcntl.h Guo Ren (30): csky: Build infrastructure csky: defconfig csky: Kernel booting csky: Exception handling and mm-fault csky: System Call csky: Cache and TLB routines csky

[PATCH V5 02/30] csky: defconfig

This patch adds csky defconfig. Signed-off-by: Guo Ren --- arch/csky/configs/defconfig | 61 + 1 file changed, 61 insertions(+) create mode 100644 arch/csky/configs/defconfig diff --git a/arch/csky/configs/defconfig b/arch/csky/configs/defconfig new

[PATCH V5 05/30] csky: System Call

This patch adds files related to syscall. Signed-off-by: Guo Ren --- arch/csky/include/asm/syscall.h | 69 + arch/csky/include/asm/syscalls.h| 15 arch/csky/include/uapi/asm/unistd.h | 10 ++ arch/csky/kernel/syscall.c | 42

[PATCH V5 04/30] csky: Exception handling and mm-fault

This patch adds exception handling code, cpuinfo and mm-fault code. Signed-off-by: Guo Ren --- arch/csky/abiv1/alignment.c | 332 + arch/csky/abiv1/inc/abi/entry.h | 160 arch/csky/abiv2/inc/abi/entry.h | 157 arch/csky

[PATCH V5 06/30] csky: Cache and TLB routines

This patch adds cache and tlb sync codes for abiv1 & abiv2. Signed-off-by: Guo Ren --- arch/csky/abiv1/cacheflush.c | 51 arch/csky/abiv1/inc/abi/cacheflush.h | 43 +++ arch/csky/abiv1/inc/abi/tlb.h | 12 ++ arch/csky/abiv2/cacheflush.c |

[PATCH V5 03/30] csky: Kernel booting

This patch add boot code. Thx boot params is all in dtb and it's the only way to let kernel get bootloader param information. Signed-off-by: Guo Ren --- arch/csky/kernel/head.S| 78 + arch/csky/kernel/setup.c

[PATCH V5 01/30] csky: Build infrastructure

This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren --- arch/csky/Kconfig | 204 + arch/csky/Kconfig.debug| 8 ++ arch/csky/Makefile | 92 +++ arch/csky/abiv1

[PATCH V5 12/30] csky: ELF and module probe

This patch adds ELF definition and module relocate codes. Signed-off-by: Guo Ren --- arch/csky/include/asm/elf.h | 150 arch/csky/kernel/module.c | 83 2 files changed, 233 insertions(+) create mode 100644 arch/csky

[PATCH V5 08/30] csky: Process management and Signal

This patch adds files related to task_switch, sigcontext, signal. Signed-off-by: Guo Ren --- arch/csky/abiv2/fpu.c | 281 + arch/csky/abiv2/inc/abi/fpu.h | 66 ++ arch/csky/include/asm/mmu_context.h | 149 ++ arch/csky

[PATCH V5 13/30] csky: Library functions

This patch adds string optimize codes and some auxiliary code. Signed-off-by: Chen Linfei Signed-off-by: Mao Han Signed-off-by: Guo Ren --- arch/csky/abiv1/bswapdi.c| 19 +++ arch/csky/abiv1/bswapsi.c| 15 ++ arch/csky/abiv1/inc/abi/string.h | 13 ++ arch/csky/abiv1

[PATCH V5 11/30] csky: Atomic operations

This patch adds atomic, cmpxchg, spinlock files. - SMP supported - ticklock supported - queue-rwlock supported Signed-off-by: Guo Ren --- arch/csky/include/asm/atomic.h | 213 ++ arch/csky/include/asm/cmpxchg.h| 70 + arch/csky/include/asm

[PATCH V5 10/30] csky: IRQ handling

This patch adds IRQ handling files. Signed-off-by: Guo Ren --- arch/csky/include/asm/irq.h | 9 arch/csky/include/asm/irqflags.h | 50 arch/csky/kernel/irq.c | 22 ++ 3 files changed, 81 insertions(+) create mode

[PATCH V5 14/30] csky: User access

This patch adds "user access from kernel" codes. Signed-off-by: Guo Ren --- arch/csky/include/asm/uaccess.h | 399 arch/csky/lib/usercopy.c| 271 +++ 2 files changed, 670 insertions(+) create mode 100644 arch/cs

[PATCH V5 09/30] csky: VDSO and rt_sigreturn

This patch adds files related to VDSO and our VDSO only support rt_sigreturn. Signed-off-by: Guo Ren --- arch/csky/abiv1/inc/abi/vdso.h | 18 + arch/csky/abiv2/inc/abi/vdso.h | 24 arch/csky/include/asm/vdso.h | 13 +++ arch/csky/kernel/vdso.c| 85

[PATCH V5 07/30] csky: MMU and page table management

(1GB) - abiv1 CPU (CK610) is VIPT cache and it doesn't support highmem. - abiv2 CPUs are all PIPT cache and they could support highmem. Lowmem is directly mapped by msa0 & msa1 reg, and we needn't setup memory page table for it. Signed-off-by: Guo Ren --- arch/csky

[PATCH V5 15/30] csky: Debug and Ptrace GDB

This patch adds arch ptrace implementation, stack dump and bug.h. Signed-off-by: Guo Ren --- arch/csky/include/asm/bug.h | 26 +++ arch/csky/include/uapi/asm/ptrace.h | 104 arch/csky/kernel/dumpstack.c| 65 arch/csky/kernel/ptrace.c | 318

[PATCH V5 16/30] csky: SMP support

This patch adds boot, ipi, hotplug code for SMP. Signed-off-by: Guo Ren --- arch/csky/include/asm/smp.h | 26 + arch/csky/kernel/smp.c | 234 2 files changed, 260 insertions(+) create mode 100644 arch/csky/include/asm/smp.h create mode

[PATCH V5 17/30] csky: Misc headers

This patch adds csky register definition, byteorder, asm-offsets codes. Signed-off-by: Guo Ren --- arch/csky/abiv1/inc/abi/reg_ops.h | 27 arch/csky/abiv1/inc/abi/regdef.h | 26 +++ arch/csky/abiv2/inc/abi/reg_ops.h | 17 ++ arch/csky/abiv2/inc/abi/regdef.h | 26

[PATCH V5 18/30] dt-bindings: csky CPU Bindings

This patch adds the documentation to describe that how to add cpu nodes in dts for SMP. Signed-off-by: Guo Ren --- Documentation/devicetree/bindings/csky/cpus.txt | 70 + 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/csky/cpus.txt

[PATCH V5 20/30] csky/dma: bugfix dma_sync_for_cpu/device

invalidate Signed-off-by: Guo Ren --- arch/csky/mm/dma-mapping.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/csky/mm/dma-mapping.c b/arch/csky/mm/dma-mapping.c index 16c2087..30a2041 100644 --- a/arch/csky/mm/dma-mapping.c +++ b/arch/csky/mm/dma-mapping.c @@ -217,7

[PATCH V5 21/30] csky: remove irq_mapping from smp.c

- Add irq_mapping return check - Move IPI_IRQ into irq-driver - remove irq_mapping from smp.c to irq-driver - Add set_ipi_irq_mapping api to irq-driver - update asm/smp.h Signed-off-by: Guo Ren --- arch/csky/include/asm/smp.h | 4 +++- arch/csky/kernel/smp.c | 27

[PATCH V5 19/30] dt-bindings: Add vendor prefix for csky

Add csky vendor definition. Signed-off-by: Guo Ren --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 2c3fc51..a728ee3

[PATCH V5 22/30] irqchip: add C-SKY SMP interrupt controller

irq map, reserve soft_irq & private_irq space - Add License and Copyright - Support set_affinity for irq balance in SMP Signed-off-by: Guo Ren --- drivers/irqchip/Kconfig | 8 ++ drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-csky-mpintc.c |

[PATCH V5 23/30] dt-bindings: interrupt-controller: C-SKY SMP intc

- Dt-bindings doc about C-SKY Multi-processors interrupt controller. Signed-off-by: Guo Ren --- .../bindings/interrupt-controller/csky,mpintc.txt | 40 ++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky

[PATCH V5 24/30] clocksource: add C-SKY SMP timer

. - Coding convention with upstream feed-back. Signed-off-by: Guo Ren --- drivers/clocksource/Kconfig| 8 ++ drivers/clocksource/Makefile | 1 + drivers/clocksource/csky_mptimer.c | 176 + include/linux/cpuhotplug.h | 1 + 4 files changed

[PATCH V5 27/30] dt-bindings: interrupt-controller: C-SKY APB intc

- Dt-bindings doc about C-SKY apb bus interrupt controller. Signed-off-by: Guo Ren --- .../interrupt-controller/csky,apb-intc.txt | 62 ++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt

[PATCH V5 26/30] MAINTAINERS: Add csky

Add a maintainer information for the csky(C-SKY) architecture. Signed-off-by: Guo Ren --- MAINTAINERS | 16 1 file changed, 16 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index d870cb5..6b7c1be 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3211,6 +3211,22 @@ T

[PATCH V5 28/30] irqchip: add C-SKY APB bus interrupt controller

rq-pending - remove CSKY_VECIRQ_LEGENCY - change to generic irq chip framework - add License and Copyright - use irq_domain_add_linear instead of leagcy Signed-off-by: Guo Ren --- drivers/irqchip/Kconfig | 8 ++ drivers/irqchip/Makefile| 1 + drivers/irqchip/irq-c

[PATCH V5 29/30] dt-bindings: timer: gx6605s SOC timer

- Dt-bindings doc for gx6605s SOC's system timer. Signed-off-by: Guo Ren Reviewed-by: Rob Herring --- .../bindings/timer/csky,gx6605s-timer.txt | 42 ++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/csky,gx

[PATCH V5 30/30] clocksource: add gx6605s SOC system timer

Changelog: - Add COMPILE_TEST in Kconfig - Add License and Copyright - Use timer-of framework - Change name with upstream feedback - Use clksource_mmio framework Signed-off-by: Guo Ren --- drivers/clocksource/Kconfig | 8 ++ drivers/clocksource/Makefile| 1 + drivers

[PATCH V5 25/30] dt-bindings: timer: C-SKY Multi-processor timer

- Dt-bingdings doc for C-SKY SMP system setting. Signed-off-by: Guo Ren --- .../devicetree/bindings/timer/csky,mptimer.txt | 46 ++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/csky,mptimer.txt diff --git a/Documentation

Re: [PATCH V7 2/2] csky: remove irq_mapping from smp.c.

On Mon, Sep 24, 2018 at 10:23:14PM +0200, Arnd Bergmann wrote: > On Tue, Sep 18, 2018 at 3:48 PM Guo Ren wrote: > > > > - remove irq_mapping from smp.c to irq-driver > > - Add set_ipi_irq_mapping api to irq-driver > > - update asm/smp.h > > > > Signed-o

Re: [PATCH V7 1/2] csky/dma: bugfix dma_sync_for_cpu/device

On Mon, Sep 24, 2018 at 10:38:04PM +0200, Arnd Bergmann wrote: > On Tue, Sep 18, 2018 at 3:48 PM Guo Ren wrote: > > > > ref: https://lkml.org/lkml/2018/5/18/1068 > > > > map for_cpu for_device unmap > > TO_DEV writeback non

Re: [PATCH V7 1/2] csky/dma: bugfix dma_sync_for_cpu/device

On Tue, Sep 25, 2018 at 11:59:48AM +0200, Arnd Bergmann wrote: > On Tue, Sep 25, 2018 at 11:46 AM Guo Ren wrote: > > > > On Mon, Sep 24, 2018 at 10:38:04PM +0200, Arnd Bergmann wrote: > > > On Tue, Sep 18, 2018 at 3:48 PM Guo Ren wrote: > > > > > > >

[PATCH V3 02/26] csky: defconfig

Signed-off-by: Guo Ren --- arch/csky/configs/defconfig | 76 + 1 file changed, 76 insertions(+) create mode 100644 arch/csky/configs/defconfig diff --git a/arch/csky/configs/defconfig b/arch/csky/configs/defconfig new file mode 100644 index 000

[PATCH V3 24/26] clocksource: add C-SKY SMP timer

This timer is used by SMP system and use mfcr/mtcr instruction to access the regs. Changelog: - Support csky mp timer alpha version. - Just use low-counter with 32bit width as clocksource. - Coding convention with upstream feed-back. Signed-off-by: Guo Ren --- drivers/clocksource

[PATCH V3 16/26] csky: SMP support

Signed-off-by: Guo Ren --- arch/csky/include/asm/smp.h | 26 + arch/csky/kernel/smp.c | 234 2 files changed, 260 insertions(+) create mode 100644 arch/csky/include/asm/smp.h create mode 100644 arch/csky/kernel/smp.c diff --git a/arch

[PATCH V3 18/26] dt-bindings: csky CPU Bindings

Signed-off-by: Guo Ren --- Documentation/devicetree/bindings/csky/cpus.txt | 70 + 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/csky/cpus.txt diff --git a/Documentation/devicetree/bindings/csky/cpus.txt b/Documentation

[PATCH V3 01/26] csky: Build infrastructure

Signed-off-by: Guo Ren --- arch/csky/Kconfig | 230 + arch/csky/Kconfig.debug| 14 ++ arch/csky/Makefile | 93 + arch/csky/abiv1/Makefile | 8 ++ arch/csky/abiv2/Makefile

[PATCH V3 08/26] csky: Process management and Signal

Signed-off-by: Guo Ren --- arch/csky/abiv2/fpu.c | 281 + arch/csky/abiv2/inc/abi/fpu.h | 66 ++ arch/csky/include/asm/mmu_context.h | 148 ++ arch/csky/include/asm/processor.h | 120 +++ arch/csky/include/asm

[PATCH V3 03/26] csky: Kernel booting

Signed-off-by: Guo Ren --- arch/csky/kernel/head.S| 78 + arch/csky/kernel/setup.c | 150 + arch/csky/kernel/vmlinux.lds.S | 64 ++ 3 files changed, 292 insertions(+) create mode 100644 arch/csky/kernel

[PATCH V3 09/26] csky: VDSO and rt_sigreturn

Signed-off-by: Guo Ren --- arch/csky/abiv1/inc/abi/vdso.h | 17 arch/csky/abiv2/inc/abi/vdso.h | 24 arch/csky/include/asm/vdso.h | 12 ++ arch/csky/kernel/vdso.c| 88 ++ 4 files changed, 141 insertions(+) create mode

[PATCH V3 19/26] dt-bindings: timer: gx6605s SOC timer

Signed-off-by: Guo Ren --- .../bindings/timer/csky,gx6605s-timer.txt | 46 ++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/csky,gx6605s-timer.txt diff --git a/Documentation/devicetree/bindings/timer/csky,gx6605s

[PATCH V3 26/26] irqchip: add C-SKY irqchip drivers

use irq_domain_add_linear instead of leagcy. - add set_handle_irq(), ref from openrisc & arm. Signed-off-by: Guo Ren --- drivers/irqchip/Makefile| 1 + drivers/irqchip/irq-csky-apb-intc.c | 243 drivers/irqchip/irq-csky-mpintc.c

[PATCH V3 25/26] clocksource: add C-SKY timers' build infrastructure

Signed-off-by: Guo Ren --- drivers/clocksource/Kconfig | 15 +++ drivers/clocksource/Makefile | 2 ++ 2 files changed, 17 insertions(+) diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index dec0dd8..6ff0a25 100644 --- a/drivers/clocksource/Kconfig +++ b

[PATCH V3 12/26] csky: ELF and module probe

Signed-off-by: Guo Ren --- arch/csky/include/asm/elf.h | 149 arch/csky/kernel/module.c | 82 2 files changed, 231 insertions(+) create mode 100644 arch/csky/include/asm/elf.h create mode 100644 arch/csky/kernel/module.c

[PATCH V3 22/26] dt-bindings: interrupt-controller: C-SKY SMP intc

Signed-off-by: Guo Ren --- .../bindings/interrupt-controller/csky,mpintc.txt | 40 ++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt diff --git a/Documentation/devicetree/bindings/interrupt

[PATCH V3 14/26] csky: User access

Signed-off-by: Guo Ren --- arch/csky/include/asm/uaccess.h | 396 arch/csky/lib/usercopy.c| 271 +++ 2 files changed, 667 insertions(+) create mode 100644 arch/csky/include/asm/uaccess.h create mode 100644 arch/csky/lib

[PATCH V3 00/26] C-SKY(csky) Linux Kernel Port

r() mtcr() in asm/reg_ops.h bdcd8f3 csky: revert back Kconfig select. 590c7e6 csky: bugfix compile error with CONFIG_AUDIT 1989292 csky: revert some back with cleanup unistd.h f1454fe csky: cleanup unistd.h 5d2985f csky: cleanup Kconfig and Makefile. 423d97e csky: cancel subdirectories cae2af4 csky: use

[PATCH V3 20/26] dt-bindings: timer: C-SKY Multi-processor timer

Signed-off-by: Guo Ren --- .../devicetree/bindings/timer/csky,mptimer.txt | 46 ++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/csky,mptimer.txt diff --git a/Documentation/devicetree/bindings/timer/csky,mptimer.txt b

[PATCH V3 11/26] csky: Atomic operations

Signed-off-by: Guo Ren --- arch/csky/include/asm/atomic.h | 215 + arch/csky/include/asm/cmpxchg.h| 70 arch/csky/include/asm/spinlock.h | 286 + arch/csky/include/asm/spinlock_types.h | 35 arch/csky

[PATCH V3 15/26] csky: Debug and Ptrace GDB

Signed-off-by: Guo Ren --- arch/csky/include/asm/bug.h | 26 +++ arch/csky/include/uapi/asm/ptrace.h | 103 arch/csky/kernel/dumpstack.c| 64 arch/csky/kernel/ptrace.c | 317 4 files changed, 510 insertions

[PATCH V3 17/26] csky: Misc headers

Signed-off-by: Guo Ren --- arch/csky/abiv1/inc/abi/reg_ops.h | 26 +++ arch/csky/abiv1/inc/abi/regdef.h | 25 +++ arch/csky/abiv2/inc/abi/reg_ops.h | 17 ++ arch/csky/abiv2/inc/abi/regdef.h | 26 +++ arch/csky/boot/dts/qemu.dts| 77 + arch/csky

[PATCH V3 05/26] csky: System Call

Signed-off-by: Guo Ren --- arch/csky/include/asm/syscall.h | 69 + arch/csky/include/asm/syscalls.h| 14 arch/csky/include/uapi/asm/unistd.h | 10 ++ arch/csky/kernel/syscall.c | 63 + arch/csky

[PATCH V3 23/26] clocksource: add gx6605s SOC system timer

Changelog: - Add License and Copyright - Use timer-of framework - Change name with upstream feedback - Use clksource_mmio framework Signed-off-by: Guo Ren --- drivers/clocksource/timer-gx6605s.c | 150 1 file changed, 150 insertions(+) create mode

[PATCH V3 10/26] csky: IRQ handling

Signed-off-by: Guo Ren --- arch/csky/include/asm/irq.h | 10 arch/csky/include/asm/irqflags.h | 49 arch/csky/kernel/irq.c | 31 + 3 files changed, 90 insertions(+) create mode 100644 arch/csky/include/asm

[PATCH V3 04/26] csky: Exception handling

Signed-off-by: Guo Ren --- arch/csky/abiv1/alignment.c | 331 + arch/csky/abiv1/inc/abi/entry.h | 159 arch/csky/abiv2/inc/abi/entry.h | 157 arch/csky/include/asm/traps.h | 39 arch/csky/include/asm/unistd.h | 3

[PATCH V3 13/26] csky: Library functions

Signed-off-by: Guo Ren --- arch/csky/abiv1/bswapdi.c| 18 ++ arch/csky/abiv1/bswapsi.c| 14 ++ arch/csky/abiv1/inc/abi/string.h | 13 ++ arch/csky/abiv1/memcpy.S | 344 +++ arch/csky/abiv1/memset.c | 38 + arch/csky

[PATCH V3 21/26] dt-bindings: interrupt-controller: C-SKY APB intc

Signed-off-by: Guo Ren --- .../interrupt-controller/csky,apb-intc.txt | 45 ++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt diff --git a/Documentation/devicetree/bindings/interrupt

[PATCH V3 06/26] csky: Cache and TLB routines

Signed-off-by: Guo Ren --- arch/csky/abiv1/cacheflush.c | 50 arch/csky/abiv1/inc/abi/cacheflush.h | 41 +++ arch/csky/abiv1/inc/abi/tlb.h | 11 ++ arch/csky/abiv2/cacheflush.c | 54 + arch/csky/abiv2/inc/abi/cacheflush.h | 38 ++ arch

[PATCH V3 07/26] csky: MMU and page table management

alloc : 0xf020 – 0xff00 (238 MB) Lowmem : 0x8000 – 0xc000 (1GB) Lowmem is directly mapped by msa0 & msa1 reg, and we needn't setup page-table for it. Signed-off-by: Guo Ren --- arch/csky/abiv1/inc/abi/ckmmu.h| 74 arch/csky/abiv1/

Re: [PATCH V3 18/26] dt-bindings: csky CPU Bindings

On Wed, Sep 05, 2018 at 07:37:50PM -0500, Rob Herring wrote: > On Wed, Sep 5, 2018 at 7:08 AM Guo Ren wrote: > > > > Signed-off-by: Guo Ren > > --- > > Documentation/devicetree/bindings/csky/cpus.txt | 70 > > + > > 1 file cha

Re: [PATCH V3 19/26] dt-bindings: timer: gx6605s SOC timer

On Wed, Sep 05, 2018 at 07:47:29PM -0500, Rob Herring wrote: > On Wed, Sep 5, 2018 at 7:09 AM Guo Ren wrote: > > > > Signed-off-by: Guo Ren > > --- > > .../bindings/timer/csky,gx6605s-timer.txt | 46 > > ++ > > 1 file cha

Re: [PATCH V3 21/26] dt-bindings: interrupt-controller: C-SKY APB intc

On Wed, Sep 05, 2018 at 07:43:10PM -0500, Rob Herring wrote: > On Wed, Sep 5, 2018 at 7:10 AM Guo Ren wrote: > > > > Signed-off-by: Guo Ren > > --- > > .../interrupt-controller/csky,apb-intc.txt | 45 > > ++ > > 1 file cha

Re: [PATCH V3 22/26] dt-bindings: interrupt-controller: C-SKY SMP intc

On Wed, Sep 05, 2018 at 07:45:12PM -0500, Rob Herring wrote: > On Wed, Sep 5, 2018 at 7:09 AM Guo Ren wrote: > > > > Signed-off-by: Guo Ren > > --- > > .../bindings/interrupt-controller/csky,mpintc.txt | 40 > > ++ > > 1 file cha

Re: [PATCH V3 02/26] csky: defconfig

On Thu, Sep 06, 2018 at 03:58:51PM +0200, Arnd Bergmann wrote: > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > > Signed-off-by: Guo Ren > > --- > > arch/csky/configs/defconfig | 76 > > + > > +CONFIG_USEL

Re: [PATCH V3 05/26] csky: System Call

On Thu, Sep 06, 2018 at 04:10:49PM +0200, Arnd Bergmann wrote: > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > +SYSCALL_DEFINE6(mmap2, > > + unsigned long, addr, > > + unsigned long, len, > > + unsigned long, prot, > > + unsign

Re: [PATCH V3 06/26] csky: Cache and TLB routines

On Thu, Sep 06, 2018 at 04:31:16PM +0200, Arnd Bergmann wrote: > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > diff --git a/arch/csky/include/asm/io.h b/arch/csky/include/asm/io.h > > new file mode 100644 > > index 000..fcb2142 > > --- /dev/null > &

Re: [PATCH V3 09/26] csky: VDSO and rt_sigreturn

On Thu, Sep 06, 2018 at 04:02:42PM +0200, Arnd Bergmann wrote: > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > + > > + /* > > +* __NR_rt_sigreturn must be 173 > > +* Because gcc/config/csky/linux-unwind.h use hard

Re: [PATCH V3 13/26] csky: Library functions

On Thu, Sep 06, 2018 at 04:24:59PM +0200, Arnd Bergmann wrote: > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > --- /dev/null > > +++ b/arch/csky/abiv1/memset.c > > @@ -0,0 +1,38 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +// Copyright (C) 2018

Re: [PATCH V3 13/26] csky: Library functions

On Thu, Sep 06, 2018 at 05:50:02PM +0200, Geert Uytterhoeven wrote: > On Thu, Sep 6, 2018 at 4:25 PM Arnd Bergmann wrote: > > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > --- /dev/null > > > +++ b/arch/csky/abiv1/memset.c > > > @@ -0,0 +1,38

Re: [PATCH V3 17/26] csky: Misc headers

On Thu, Sep 06, 2018 at 04:16:30PM +0200, Arnd Bergmann wrote: > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > diff --git a/arch/csky/boot/dts/qemu.dts b/arch/csky/boot/dts/qemu.dts > > new file mode 100644 > > index 000..d36e4cd > > --- /dev/null > &g

Re: [PATCH V3 21/26] dt-bindings: interrupt-controller: C-SKY APB intc

On Thu, Sep 06, 2018 at 03:05:38PM +0200, Arnd Bergmann wrote: > On Thu, Sep 6, 2018 at 4:13 AM Guo Ren wrote: > > > > On Wed, Sep 05, 2018 at 07:43:10PM -0500, Rob Herring wrote: > > > On Wed, Sep 5, 2018 at 7:10 AM Guo Ren wrote: > > >

Re: [PATCH V3 22/26] dt-bindings: interrupt-controller: C-SKY SMP intc

er, but in some > cases the SoC integrator put the wrong address in there, so we need to > look up the address in DT anyway. Yes, it's reliable. This interrupt is combined with CPU and not on AXI or APB. Soc just give a hole in the address space and tell the CPU where the address is with 20 wire-signals. Guo Ren

Re: [PATCH V3 00/26] C-SKY(csky) Linux Kernel Port

On Thu, Sep 06, 2018 at 07:08:18PM -0700, Guenter Roeck wrote: > Hi, > > On Wed, Sep 05, 2018 at 08:07:39PM +0800, Guo Ren wrote: > > This is the 3th version patchset to add the Linux kernel port for > > C-SKY(csky). > > Thanks to everyone who provided feedb

Re: [PATCH V3 19/26] dt-bindings: timer: gx6605s SOC timer

On Thu, Sep 06, 2018 at 10:02:29AM +0800, Guo Ren wrote: > On Wed, Sep 05, 2018 at 07:47:29PM -0500, Rob Herring wrote: > > On Wed, Sep 5, 2018 at 7:09 AM Guo Ren wrote: > > > > > > Signed-off-by: Guo Ren > > > --- > > > .../bindin

Re: [PATCH V3 17/26] csky: Misc headers

On Fri, Sep 07, 2018 at 10:01:03AM +0200, Arnd Bergmann wrote: > On Fri, Sep 7, 2018 at 7:17 AM Guo Ren wrote: > > > > On Thu, Sep 06, 2018 at 04:16:30PM +0200, Arnd Bergmann wrote: > > > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > > > > > di

Re: [PATCH V3 06/26] csky: Cache and TLB routines

On Fri, Sep 07, 2018 at 10:14:38AM +0200, Arnd Bergmann wrote: > On Fri, Sep 7, 2018 at 5:04 AM Guo Ren wrote: > > > > On Thu, Sep 06, 2018 at 04:31:16PM +0200, Arnd Bergmann wrote: > > > On Wed, Sep 5, 2018 at 2:08 PM Guo Ren wrote: > > > > > > Can

Re: [PATCH V6 20/33] csky/dma: fix up dma_mapping error

On Sat, Sep 29, 2018 at 11:08:41PM +0800, Guo Ren wrote: > On Fri, Sep 28, 2018 at 09:21:16AM -0700, Christoph Hellwig wrote: > > On Fri, Sep 28, 2018 at 08:51:17AM +0800, Guo Ren wrote: > > > The arch_sync_dma_for_cpu()/arch_sync_dma_for_device() implementation is >

[PATCH V7 7/8] dt-bindings: timer: gx6605s SOC timer

- Dt-bindings doc for gx6605s SOC's system timer. Signed-off-by: Guo Ren Reviewed-by: Rob Herring --- .../bindings/timer/csky,gx6605s-timer.txt | 42 ++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/csky,gx

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