Makefile.
Signed-off-by: Guo Ren
---
arch/csky/Kconfig | 205 +
arch/csky/Kconfig.debug| 9 ++
arch/csky/Makefile | 93 +++
arch/csky/abiv1/Makefile | 8 ++
arch/csky/abiv2/Makefile
52ab022 csky: add mfcr() 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
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
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.
Changelog:
- Use built-in dtb when dtb param is NULL.
- Add dummy console for allmodconfig.
Signed-off-by: Guo Ren
---
arch/csky/kernel/head.S
This patch adds files related to syscall.
Signed-off-by: Guo Ren
---
arch/csky/include/asm/syscall.h | 71 +
arch/csky/include/asm/syscalls.h| 15
arch/csky/include/uapi/asm/unistd.h | 10 ++
arch/csky/kernel/syscall.c | 43
This patch adds exception handling code, cpuinfo and mm-fault code.
Signed-off-by: Guo Ren
---
arch/csky/abiv1/alignment.c | 323
arch/csky/abiv1/inc/abi/entry.h | 160
arch/csky/abiv2/inc/abi/entry.h | 156
arch/csky
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 | 17 +
arch/csky/abiv2/inc/abi/vdso.h | 23 +++
arch/csky/include/asm/vdso.h | 12 ++
arch/csky/kernel/vdso.c| 86
.gh17...@n2100.armlinux.org.uk/
Signed-off-by: Guo Ren
Cc: Christoph Hellwig
---
arch/csky/abiv1/inc/abi/ckmmu.h| 75
arch/csky/abiv1/inc/abi/page.h | 27 +++
arch/csky/abiv1/inc/abi/pgtable-bits.h | 37
arch/csky/abiv1/mmap.c | 66 +++
arch/csky
l with
vma->mm's asid for cache_flush_line and we use cache_wbinv_all() first.
Wwe'll improve with cache_flush(vma, start, end) in future.
For tlb_start_vma, we make it the same as other arch.
- remove the abi/tlb.h
Signed-off-by: Guo Ren
---
arch/csky/abiv1/cacheflush.c
This patch adds atomic, cmpxchg, spinlock files.
Changlog:
- SMP supported
- ticklock supported
- queue-rwlock supported
Signed-off-by: Guo Ren
Cc: Peter Zijlstra
Cc: Andrea Parri
---
arch/csky/include/asm/atomic.h | 212 +
arch/csky/include/asm/cmpxchg.h
This patch adds IRQ handling files.
Changelog:
- Use CONFIG_GENERIC_IRQ_MULTI_HANDLER
Signed-off-by: Guo Ren
Cc: Thomas Gleixner
---
arch/csky/include/asm/irqflags.h | 49
arch/csky/kernel/irq.c | 22 ++
2 files changed, 71
This patch adds files related to task_switch, sigcontext, signal.
Changelog:
- abiv2/fpu.c: Userspace should never be sent NSIGXXX as a si_code.
Use FPE_FLTUNK instead.
- abiv2/fpu.c: Use force_sig_fault instead.
Signed-off-by: Guo Ren
---
arch/csky/abiv2/fpu.c | 275
This patch adds string optimize codes and some auxiliary code.
Changelog:
- Use bt instead of jbt in asm, jbt will cause relocation problem.
- remove kernel/platform.c
Signed-off-by: Chen Linfei
Signed-off-by: Mao Han
Signed-off-by: Guo Ren
---
arch/csky/abiv1/bswapdi.c| 12
This patch adds ELF definition and module relocate codes.
Signed-off-by: Guo Ren
---
arch/csky/abiv1/inc/abi/elf.h | 26
arch/csky/abiv2/inc/abi/elf.h | 43
arch/csky/include/asm/elf.h | 85 +++
arch/csky/kernel/module.c
This patch adds "user access from kernel" codes.
Signed-off-by: Guo Ren
---
arch/csky/include/asm/uaccess.h | 416
arch/csky/lib/usercopy.c| 262 +
2 files changed, 678 insertions(+)
create mode 100644 arch/cs
not directly use IPI_IRQ. The modification also involves csky_mp_intc.
Signed-off-by: Guo Ren
Cc: Marc Zyngier
Cc: Mark Rutland
Cc: Peter Zijlstra
---
arch/csky/include/asm/smp.h | 28 ++
arch/csky/kernel/smp.c | 237
2 files changed, 2
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| 66
arch/csky/kernel/ptrace.c | 314
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
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| 77 +
arch/csky/kernel/setup.c
This patch adds files related to syscall.
Signed-off-by: Guo Ren
---
arch/csky/include/asm/syscall.h | 71 +
arch/csky/include/asm/syscalls.h| 15
arch/csky/include/uapi/asm/unistd.h | 10 ++
arch/csky/kernel/syscall.c | 43
che_wbinv_all() first.
Wwe'll improve with cache_flush(vma, start, end) in future.
For tlb_start_vma, we make it the same as other arch.
- remove the abi/tlb.h
Signed-off-by: Guo Ren
---
arch/csky/abiv1/cacheflush.c | 52
arch/csky/abiv1/inc/abi/cacheflush.h | 49
onfig 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 asm-generic/fcntl.h
Guo Ren (20):
csky: Build in
date*
BIDIR writeback invalidate writeback invalidate
Link:https://lore.kernel.org/lkml/20180518215548.gh17...@n2100.armlinux.org.uk/
Signed-off-by: Guo Ren
---
arch/csky/abiv1/inc/abi/ckmmu.h| 75
arch/csky/abiv1/inc/abi/page.h | 27 +++
arch/csky
This patch adds files related to task_switch, sigcontext, signal.
Changelog:
- abiv2/fpu.c: Userspace should never be sent NSIGXXX as a si_code.
Use FPE_FLTUNK instead.
- abiv2/fpu.c: Use force_sig_fault instead.
Signed-off-by: Guo Ren
---
arch/csky/abiv2/fpu.c | 275
This patch adds Makefile, Kconfig for build infrastructure.
Changelog:
- Add compat.h in asm/Kbuild.
- Add select DMA_DIRECT_OPS in Kconfig.
- remove kernel/platform.c in Makefile.
Signed-off-by: Guo Ren
---
arch/csky/Kconfig | 205
This patch adds exception handling code, cpuinfo and mm-fault code.
Signed-off-by: Guo Ren
---
arch/csky/abiv1/alignment.c | 323
arch/csky/abiv1/inc/abi/entry.h | 160
arch/csky/abiv2/inc/abi/entry.h | 156
arch/csky
This patch adds atomic, cmpxchg, spinlock files.
Changlog:
- SMP supported
- ticklock supported
- queue-rwlock supported
Signed-off-by: Guo Ren
---
arch/csky/include/asm/atomic.h | 212 +
arch/csky/include/asm/cmpxchg.h| 73 +
arch/csky
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 | 17 +
arch/csky/abiv2/inc/abi/vdso.h | 23 +++
arch/csky/include/asm/vdso.h | 12 ++
arch/csky/kernel/vdso.c| 86
This patch adds string optimize codes and some auxiliary code.
Changelog:
- Use bt instead of jbt in asm, jbt will cause relocation problem.
- remove kernel/platform.c
Signed-off-by: Chen Linfei
Signed-off-by: Mao Han
Signed-off-by: Guo Ren
---
arch/csky/abiv1/bswapdi.c| 12
This patch adds "user access from kernel" codes.
Signed-off-by: Guo Ren
---
arch/csky/include/asm/uaccess.h | 416
arch/csky/lib/usercopy.c| 262 +
2 files changed, 678 insertions(+)
create mode 100644 arch/cs
because it's a
interrupt controller specific.
- Bugfix request_irq with IPI_IRQ, we must use irq_mapping return value
not directly use IPI_IRQ. The modification also involves csky_mp_intc.
Signed-off-by: Guo Ren
---
arch/csky/include/asm/smp.h | 30 ++
arch/csky/kern
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| 66
arch/csky/kernel/ptrace.c | 314
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
This patch adds IRQ handling files.
Signed-off-by: Guo Ren
---
arch/csky/include/asm/irqflags.h | 49
arch/csky/kernel/irq.c | 22 ++
2 files changed, 71 insertions(+)
create mode 100644 arch/csky/include/asm/irqflags.h
create
This patch adds ELF definition and module relocate codes.
Signed-off-by: Guo Ren
---
arch/csky/abiv1/inc/abi/elf.h | 26
arch/csky/abiv2/inc/abi/elf.h | 43
arch/csky/include/asm/elf.h | 85 +++
arch/csky/kernel/module.c
Add csky vendor definition.
Signed-off-by: Guo Ren
Reviewed-by: Rob Herring
---
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
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
Add a maintainer information for the csky(C-SKY) architecture.
Signed-off-by: Guo Ren
---
MAINTAINERS | 9 +
1 file changed, 9 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index d870cb5..9dac20e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3211,6 +3211,15 @@ T: git git
Hi Daniel,
On Fri, Oct 05, 2018 at 03:48:58PM +0200, Daniel Lezcano wrote:
> On 04/10/2018 19:22, Guo Ren wrote:
> > This timer is used by SMP system and use mfcr/mtcr instruction
> > to access the regs.
> >
> > Changelog:
> > - Add rollback for timer_of_clean
Hi Rob,
Thx for the review.
On Fri, Oct 05, 2018 at 03:21:08PM -0500, Rob Herring wrote:
> On Fri, Oct 05, 2018 at 01:22:28AM +0800, Guo Ren wrote:
> > Dt-bindings doc for gx6605s SOC's system timer.
> >
> > Signed-off-by: Guo Ren
> > ---
> > ...
On Sat, Oct 06, 2018 at 10:06:49PM +0200, Eugene Syromiatnikov wrote:
> On Fri, Oct 05, 2018 at 01:41:42PM +0800, Guo Ren wrote:
> > This is the 7th version patchset to add the Linux kernel port for
> > C-SKY(csky) based on linux-4.19-rc3.
> >
> > In this patchset so
request to Greg? Or could you help
pull-request?
Best Regards
Guo Ren
On Fri, Oct 05, 2018 at 01:41:42PM +0800, Guo Ren wrote:
> This is the 7th version patchset to add the Linux kernel port for
> C-SKY(csky) based on linux-4.19-rc3.
>
> In this patchset some fixup patches are folde
Hi Marc,
On Mon, Oct 08, 2018 at 05:35:19PM +0100, Marc Zyngier wrote:
> Hi Guo,
>
> On 04/10/18 18:22, Guo Ren wrote:
> > - Irq-csky-mpintc is C-SKY smp system interrupt controller and it
> >could support 16 soft irqs, 16 private irqs, and 992 max common
> >
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
On Fri, Sep 07, 2018 at 10:13:13AM -0500, Rob Herring wrote:
> On Thu, Sep 6, 2018 at 8:05 AM 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 Fri, Sep 07, 2018 at 04:13:35PM +0200, Arnd Bergmann wrote:
> On Fri, Sep 7, 2018 at 2:55 PM Guo Ren wrote:
> >
> > 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, Se
On Thu, Sep 06, 2018 at 03:39:01PM +0200, Thomas Gleixner wrote:
> On Wed, 5 Sep 2018, Guo Ren wrote:
>
> > +static void (*handle_arch_irq)(struct pt_regs *regs) = NULL;
> > +
> > +void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
> >
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
Hello Stephen,
I'm Guo Ren from C-SKY and I'm working on csky linux port upstream.
I've prepared my git-tree based on linux-4.19-rc3:
git clone -b linux-next https://github.com/c-sky/csky-linux.git
Here is the pre-built cross compiler for fast test from our CI:
https://g
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
Signed-off-by: Guo Ren
---
.../interrupt-controller/csky,apb-intc.txt | 70 ++
1 file changed, 70 insertions(+)
create mode 100644
Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt
diff --git
a/Documentation/devicetree/bindings/interrupt
e in SMP
- add INTC_IFR to clear irq-pending
- use irq_domain_add_linear instead of leagcy
Signed-off-by: Guo Ren
---
drivers/irqchip/Kconfig | 16 +++
drivers/irqchip/Makefile | 2 +
drivers/irqchip/irq-csky-mpintc.c | 191
irq-csky-apb-in
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/Kconfig
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
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
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/Kconfig | 8 ++
drivers/clocksource/Makefile| 1 +
drivers/clocksource/timer-gx6605s.c | 150
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
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/Kconfig | 8 ++
drivers/clocksource/Makefile| 1 +
drivers/clocksource/timer-gx6605s.c | 150
Sorry for duplicate patch-sets, for gx6605s-timer See PATCH V6.
On Sun, Sep 16, 2018 at 05:13:57PM +0800, Guo Ren wrote:
> This timer is used by SMP system and use mfcr/mtcr instruction
> to access the regs.
>
> Changelog:
> - Support csky mp timer alpha version.
> - Just us
On Sun, Sep 16, 2018 at 08:07:55PM +0100, Marc Zyngier wrote:
> On Sun, 16 Sep 2018 09:50:02 +0100,
> Guo Ren wrote:
> > +static void csky_mpintc_handler(struct pt_regs *regs)
> > +{
> > + void __iomem *reg_base = this_cpu_read(intcl_reg);
> > +
> > + do
On Sun, Sep 16, 2018 at 08:27:01PM +0100, Marc Zyngier wrote:
> On Sun, 16 Sep 2018 09:50:03 +0100,
> Guo Ren wrote:
> >
> > Signed-off-by: Guo Ren
>
> Please write a commit message. Same thing for the following patch.
Ok.
Best Regards
Guo Ren
On Mon, Sep 17, 2018 at 02:23:36AM -0400, Rob Herring wrote:
> On Sun, Sep 16, 2018 at 04:50:03PM +0800, Guo Ren wrote:
> > Signed-off-by: Guo Ren
>
> Needs a commit description.
>
> > ---
> > .../interrupt-controller/csky,apb-intc.txt | 70
> >
On Mon, Sep 17, 2018 at 09:54:43PM +1000, Stephen Rothwell wrote:
> Hi Guo,
>
> On Sun, 16 Sep 2018 12:53:26 +0800 Guo Ren wrote:
> >
> > I'm Guo Ren from C-SKY and I'm working on csky linux port upstream.
> > I've prepared my git-tree based on linux-4
On Mon, Sep 17, 2018 at 10:03:57PM +1000, Stephen Rothwell wrote:
> Hi Guo,
>
> On Mon, 17 Sep 2018 21:54:43 +1000 Stephen Rothwell
> wrote:
> >
> > Added from today (called "csky").
>
> Actually from tomorrow :-)
Ok.
On Mon, Sep 17, 2018 at 10:17:55AM +0200, Peter Zijlstra wrote:
> On Sat, Sep 15, 2018 at 10:55:13PM +0800, Guo Ren wrote:
> > > > +#define ATOMIC_OP_RETURN(op, c_op)
> > > > \
>
> > &
On Mon, Sep 17, 2018 at 07:23:36AM -0700, Rob Herring wrote:
> On Mon, Sep 17, 2018 at 1:36 AM Guo Ren wrote:
> >
> > On Mon, Sep 17, 2018 at 02:23:36AM -0400, Rob Herring wrote:
> > > On Sun, Sep 16, 2018 at 04:50:03PM +0800, Guo Ren wrote:
> > > > Signed-
On Mon, Sep 17, 2018 at 02:27:31PM +0100, Marc Zyngier wrote:
> On Mon, 17 Sep 2018 03:09:29 +0100,
> Guo Ren wrote:
>
> [...]
>
> > > > +
> > > > + irq_set_default_host(root_domain);
> > >
> > > Please drop this. There is no reas
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
Because I've sent to Stephen Roth with the linux-4.19-rc3 git-tree for
linux-next, I shouldn't rebase any more.
- Fixup smp.c irq mapping problem found by Marc Zyngier
- Fixup dma_sync_for_cpu/device in dma-mapping.c
Guo Ren (2):
csky/dma: bugfix dma_sync_for_cpu/device
cs
Guo Ren (2):
clocksource: add C-SKY SMP timer
dt-bindings: timer: C-SKY Multi-processor timer
.../devicetree/bindings/timer/csky,mptimer.txt | 46 ++
drivers/clocksource/Kconfig| 8 +
drivers/clocksource/Makefile | 1 +
drivers
- 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 | 18 +-
2 files changed, 17 insertions(+), 5 deletions(-)
diff --git a
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/Kconfig
Guo Ren (2):
clocksource: add gx6605s SOC system timer
dt-bindings: timer: gx6605s SOC timer
.../bindings/timer/csky,gx6605s-timer.txt | 42 ++
drivers/clocksource/Kconfig| 8 ++
drivers/clocksource/Makefile | 1 +
drivers
- 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
- 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
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/Kconfig | 8 ++
drivers/clocksource/Makefile| 1 +
drivers/clocksource/timer-gx6605s.c | 150
- 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
Guo Ren (2):
irqchip: add C-SKY APB bus interrupt controller
dt-bindings: interrupt-controller: C-SKY APB intc
.../interrupt-controller/csky,apb-intc.txt | 70 ++
drivers/irqchip/Kconfig| 8 +
drivers/irqchip/Makefile | 1
- Dt-bindings doc about C-SKY apb bus interrupt controller.
Signed-off-by: Guo Ren
---
.../interrupt-controller/csky,apb-intc.txt | 70 ++
1 file changed, 70 insertions(+)
create mode 100644
Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt
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
& private_irq space
- add License and Copyright
- support set_affinity for irq balance in SMP
Signed-off-by: Guo Ren
---
drivers/irqchip/Kconfig | 16
drivers/irqchip/Makefile | 2 +
drivers/irqchip/irq-csky-mpintc.c | 196 ++
3 f
Guo Ren (2):
irqchip: add C-SKY SMP interrupt controller
dt-bindings: interrupt-controller: C-SKY SMP intc
.../bindings/interrupt-controller/csky,mpintc.txt | 40 +
drivers/irqchip/Kconfig| 16 ++
drivers/irqchip/Makefile | 2
On Tue, Sep 18, 2018 at 05:56:50PM -0700, Rob Herring wrote:
> > > but does need a vendor prefix.
> > vendor prefix? Em ... it's just used in fpga now.
>
> What I mean is make it: csky,support-pulse-signal
Ok. no problem.
Best Regards
Guo Ren
On Wed, Mar 31, 2021 at 10:32 PM wrote:
>
> From: Guo Ren
>
> - Using smp_cond_load_acquire in arch_spin_lock by Peter's
>advice.
> - Using __smp_acquire_fence in arch_spin_trylock
> - Using smp_store_release in arch_spin_unlock
>
> All above are just cod
On Wed, Mar 31, 2021 at 10:32 PM wrote:
>
> From: Guo Ren
>
> This patch introduces a ticket lock implementation for riscv, along the
> same lines as the implementation for arch/arm & arch/csky.
>
> We still use qspinlock as default.
>
> Signed-off-by: Guo Ren
&
On Mon, Apr 12, 2021 at 12:02 AM Guo Ren wrote:
>
> On Wed, Mar 31, 2021 at 10:32 PM wrote:
> >
> > From: Guo Ren
> >
> > This patch introduces a ticket lock implementation for riscv, along the
> > same lines as the implementation for arch/arm & arch
On Wed, Mar 31, 2021 at 10:32 PM wrote:
>
> From: Guo Ren
>
> This patch introduces a ticket lock implementation for riscv, along the
> same lines as the implementation for arch/arm & arch/csky.
>
> We still use qspinlock as default.
>
> Signed-off-by: Guo Ren
&
Hi Paul,
Thx for the explanation, here is my comment.
On Wed, Mar 31, 2021 at 1:33 PM Paul Campbell wrote:
>
> On Wednesday, 31 March 2021 5:18:56 PM NZDT Guo Ren wrote:
> > > > [1]
> > > > https://github.com/c-sky/csky-linux/commit/e837aad231485427717
On Wed, Mar 31, 2021 at 12:08 AM Peter Zijlstra wrote:
>
> On Tue, Mar 30, 2021 at 11:13:55AM +0800, Guo Ren wrote:
> > On Mon, Mar 29, 2021 at 8:50 PM Peter Zijlstra wrote:
> > >
> > > On Mon, Mar 29, 2021 at 08:01:41PM +0800, Guo Ren wrote:
> > > >
On Tue, Mar 30, 2021 at 10:09 PM Waiman Long wrote:
>
> On 3/29/21 11:13 PM, Guo Ren wrote:
> > On Mon, Mar 29, 2021 at 8:50 PM Peter Zijlstra wrote:
> >> On Mon, Mar 29, 2021 at 08:01:41PM +0800, Guo Ren wrote:
> >>> u32 a = 0x55aa66bb;
>
dma-mapping.c b/arch/csky/mm/dma-mapping.c
> index c3a775a..8244702 100644
> --- a/arch/csky/mm/dma-mapping.c
> +++ b/arch/csky/mm/dma-mapping.c
> @@ -9,7 +9,6 @@
> #include
> #include
> #include
> -#include
> #include
>
> static inline void cache_op(phys_addr_t paddr, size_t size,
> --
> 1.8.3.1
>
--
Best Regards
Guo Ren
ML: https://lore.kernel.org/linux-csky/
gt; wrapper around those (or alternatively we can decide to have them
> only deal with fixed-32-bit and long/pointer sized atomics).
I think these emulation codes are suitable for some architectures but not riscv.
We shouldn't export xchg16/cmpxchg16(emulated by lr.w/sc.w) in riscv,
We sh
On Sun, Mar 28, 2021 at 2:43 AM Waiman Long wrote:
>
> On 3/27/21 2:06 PM, guo...@kernel.org wrote:
> > From: Guo Ren
> >
> > Some architectures don't have sub-word swap atomic instruction,
> > they only have the full word's one.
> >
> >
Thx Arnd,
On Sun, Mar 28, 2021 at 5:25 AM Arnd Bergmann wrote:
>
> On Sat, Mar 27, 2021 at 7:06 PM wrote:
> >
> > From: Guo Ren
> >
> > To reduce assembly codes, let's merge duplicate codes into one
> > (xchg_acquire, xchg_release, cmpxchg_release).
&g
On Sun, Mar 28, 2021 at 7:14 PM Christophe Leroy
wrote:
>
>
>
> Le 28/03/2021 à 08:30, guo...@kernel.org a écrit :
> > From: Guo Ren
> >
> > We don't have native hw xchg16 instruction, so let qspinlock
> > generic code to deal with it.
>
> We ha
On Mon, Feb 19, 2024 at 11:40 PM Anna-Maria Behnsen
wrote:
>
> CSKY selects GENERIC_TIME_VSYSCALL. GENERIC_TIME_VSYSCALL dependent
> ifdeffery is superfluous. Clean it up.
>
> Signed-off-by: Anna-Maria Behnsen
> Cc: Guo Ren
> Cc: linux-c...@vger.kernel.org
> ---
> a
On Mon, Feb 19, 2024 at 11:40 PM Anna-Maria Behnsen
wrote:
>
> There is already a generic union definition for vdso_data_store in vdso
> datapage header.
>
> Use this definition to prevent code duplication.
>
> Signed-off-by: Anna-Maria Behnsen
> Cc: Guo Ren
> Cc:
> CPU out of idle, as opposed to setting TIF_NEED_RESCHED previously. This
> avoids spurious calls to schedule_idle() in cases where an IPI does not
> necessarily wake up a task on the idle CPU.
>
> Cc: Guo Ren
> Cc: "Rafael J. Wysocki"
> Cc: Daniel Lezcano
> Cc: I
;< PAGE_SHIFT);
Oh, that's a terrible bug; Thx for fixing it.
Reviewed-by: Guo Ren
> }
> #define pfn_to_virt pfn_to_virt
>
> --
> 2.17.1
>
--
Best Regards
Guo Ren
h/csky/include/asm/page.h
> @@ -84,7 +84,7 @@ static inline unsigned long virt_to_pfn(const void *kaddr)
>
> static inline void * pfn_to_virt(unsigned long pfn)
> {
> - return (void *)((unsigned long)__va(pfn) << PAGE_SHIFT);
> + return __va(pfn << PAGE_
501 - 600 of 754 matches
Mail list logo
