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* [GIT PULL] csky changes for v5.12-rc1
@ 2021-02-28  3:43 guoren
  2021-02-28 20:14 ` pr-tracker-bot
  2021-02-28 20:36 ` Linus Torvalds
  0 siblings, 2 replies; 5+ messages in thread
From: guoren @ 2021-02-28  3:43 UTC (permalink / raw)
  To: torvalds; +Cc: arnd, linux-kernel, linux-arch, linux-csky

Hi Linus,

The following changes since commit 7c53f6b671f4aba70ff15e1b05148b10d58c2837:

  Linux 5.11-rc3 (2021-01-10 14:34:50 -0800)

are available in the Git repository at:

  https://github.com/c-sky/csky-linux.git tags/csky-for-linus-5.12-rc1

for you to fetch changes up to 6607aa6f6b68fc9b5955755f1b1be125cf2a9d03:

  csky: Fixup compile error (2021-02-27 22:04:14 +0800)

----------------------------------------------------------------
arch/csky patches for 5.12-rc1

Features:
 - Add new memory layout 2.5G(user):1.5G(kernel)
 - Add kmemleak support
 - Reconstruct VDSO framework
   Add VDSO with GENERIC_GETTIMEOFDAY,
   GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO
 - Add faulthandler_disabled() check
 - Support(Fixup) swapon
 - Add(Fixup) _PAGE_ACCESSED for default pgprot
 - abort uaccess retries upon fatal signal (From arm)

Fixup & Optimization:
 - Fixup perf probe failed
 - Fixup show_regs doesn't contain regs->usp
 - Remove custom asm/atomic.h implementation
 - Fixup barrier design
 - Fixup futex SMP implementation
 - Fixup asm/cmpxchg.h with correct ordering barrier
 - Cleanup asm/spinlock.h
 - Fixup PTE global for 2.5:1.5 virtual memory
 - Remove prologue of page fault handler in entry.S
 - Fix TLB maintenance synchronization problem
 - Add show_tlb for CPU_CK860 debug
 - Fixup FAULT_FLAG_XXX param for handle_mm_fault
 - Fixup update_mmu_cache called with user io mapping
 - Fixup do_page_fault parent irq status
 - Fix a size determination in gpr_get()
 - pgtable.h: Coding convention
 - kprobe: Fixup code in simulate without 'long'
 - Fixup pfn_valid error with wrong max_mapnr
 - use free_initmem_default() in free_initmem()
 - Fixup compile error

----------------------------------------------------------------
David Hildenbrand (1):
      csky: use free_initmem_default() in free_initmem()

Guo Ren (27):
      csky: Add memory layout 2.5G(user):1.5G(kernel)
      csky: Fixup perf probe failed
      csky: Fixup show_regs doesn't contain regs->usp
      csky: Remove custom asm/atomic.h implementation
      csky: Fixup barrier design
      csky: Fixup futex SMP implementation
      csky: Fixup asm/cmpxchg.h with correct ordering barrier
      csky: Cleanup asm/spinlock.h
      csky: Fixup PTE global for 2.5:1.5 virtual memory
      csky: Remove prologue of page fault handler in entry.S
      csky: Add kmemleak support
      csky: Fix TLB maintenance synchronization problem
      csky: Add show_tlb for CPU_CK860 debug
      csky: Fixup FAULT_FLAG_XXX param for handle_mm_fault
      csky: Fixup update_mmu_cache called with user io mapping
      csky: Add faulthandler_disabled() check
      csky: Fixup do_page_fault parent irq status
      csky: Sync riscv mm/fault.c for easy maintenance
      csky: mm: abort uaccess retries upon fatal signal
      csky: Reconstruct VDSO framework
      csky: Fixup _PAGE_ACCESSED for default pgprot
      csky: pgtable.h: Coding convention
      csky: Fixup swapon
      csky: kprobe: Fixup code in simulate without 'long'
      csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO
      csky: Fixup pfn_valid error with wrong max_mapnr
      csky: Fixup compile error

Tian Tao (1):
      csky: remove unused including <linux/version.h>

Zhenzhong Duan (1):
      csky: Fix a size determination in gpr_get()

 arch/csky/Kconfig                         |  24 +-
 arch/csky/abiv1/inc/abi/cacheflush.h      |   1 -
 arch/csky/abiv1/inc/abi/ckmmu.h           |  10 +-
 arch/csky/abiv1/inc/abi/entry.h           |   1 -
 arch/csky/abiv1/inc/abi/page.h            |   1 -
 arch/csky/abiv1/inc/abi/pgtable-bits.h    |  40 +--
 arch/csky/abiv1/inc/abi/reg_ops.h         |   1 -
 arch/csky/abiv1/inc/abi/regdef.h          |   6 +-
 arch/csky/abiv1/inc/abi/string.h          |   1 -
 arch/csky/abiv1/inc/abi/switch_context.h  |   1 -
 arch/csky/abiv1/inc/abi/vdso.h            |  18 +-
 arch/csky/abiv2/cacheflush.c              |   3 +
 arch/csky/abiv2/inc/abi/ckmmu.h           |  44 +++-
 arch/csky/abiv2/inc/abi/entry.h           |  20 +-
 arch/csky/abiv2/inc/abi/fpu.h             |   1 -
 arch/csky/abiv2/inc/abi/page.h            |   1 -
 arch/csky/abiv2/inc/abi/pgtable-bits.h    |  37 ++-
 arch/csky/abiv2/inc/abi/reg_ops.h         |   1 -
 arch/csky/abiv2/inc/abi/regdef.h          |   6 +-
 arch/csky/abiv2/inc/abi/switch_context.h  |   1 -
 arch/csky/abiv2/inc/abi/vdso.h            |  20 +-
 arch/csky/abiv2/sysdep.h                  |   1 -
 arch/csky/include/asm/addrspace.h         |   1 -
 arch/csky/include/asm/atomic.h            | 212 ----------------
 arch/csky/include/asm/barrier.h           |  83 +++++--
 arch/csky/include/asm/bitops.h            |   1 -
 arch/csky/include/asm/bug.h               |   3 +-
 arch/csky/include/asm/cacheflush.h        |   1 -
 arch/csky/include/asm/checksum.h          |   1 -
 arch/csky/include/asm/clocksource.h       |   8 +
 arch/csky/include/asm/cmpxchg.h           |  27 ++-
 arch/csky/include/asm/elf.h               |   1 -
 arch/csky/include/asm/fixmap.h            |   1 -
 arch/csky/include/asm/ftrace.h            |   1 -
 arch/csky/include/asm/futex.h             | 121 ++++++++++
 arch/csky/include/asm/highmem.h           |   1 -
 arch/csky/include/asm/io.h                |   1 -
 arch/csky/include/asm/memory.h            |   2 +-
 arch/csky/include/asm/mmu.h               |   1 -
 arch/csky/include/asm/mmu_context.h       |  10 +-
 arch/csky/include/asm/page.h              |   2 +-
 arch/csky/include/asm/perf_event.h        |   1 -
 arch/csky/include/asm/pgalloc.h           |   3 +-
 arch/csky/include/asm/pgtable.h           |  80 +++---
 arch/csky/include/asm/processor.h         |   3 +-
 arch/csky/include/asm/ptrace.h            |   1 -
 arch/csky/include/asm/segment.h           |   3 +-
 arch/csky/include/asm/shmparam.h          |   1 -
 arch/csky/include/asm/spinlock.h          | 167 -------------
 arch/csky/include/asm/spinlock_types.h    |  10 -
 arch/csky/include/asm/string.h            |   1 -
 arch/csky/include/asm/switch_to.h         |   1 -
 arch/csky/include/asm/syscalls.h          |   1 -
 arch/csky/include/asm/thread_info.h       |   2 -
 arch/csky/include/asm/tlb.h               |   1 -
 arch/csky/include/asm/tlbflush.h          |   1 -
 arch/csky/include/asm/traps.h             |   1 -
 arch/csky/include/asm/uaccess.h           |   1 -
 arch/csky/include/asm/unistd.h            |   1 -
 arch/csky/include/asm/vdso.h              |  21 +-
 arch/csky/include/asm/vdso/clocksource.h  |   9 +
 arch/csky/include/asm/vdso/gettimeofday.h | 114 +++++++++
 arch/csky/include/asm/vdso/processor.h    |  12 +
 arch/csky/include/asm/vdso/vsyscall.h     |  22 ++
 arch/csky/include/uapi/asm/byteorder.h    |   1 -
 arch/csky/include/uapi/asm/perf_regs.h    |   1 -
 arch/csky/include/uapi/asm/ptrace.h       |   1 -
 arch/csky/include/uapi/asm/sigcontext.h   |   1 -
 arch/csky/include/uapi/asm/unistd.h       |   1 -
 arch/csky/kernel/Makefile                 |   2 +-
 arch/csky/kernel/atomic.S                 |  24 +-
 arch/csky/kernel/entry.S                  | 106 +-------
 arch/csky/kernel/head.S                   |  10 +-
 arch/csky/kernel/perf_event.c             |   4 +-
 arch/csky/kernel/probes/simulate-insn.c   |  22 +-
 arch/csky/kernel/ptrace.c                 | 128 +++++++++-
 arch/csky/kernel/setup.c                  |  18 +-
 arch/csky/kernel/signal.c                 |   4 +-
 arch/csky/kernel/smp.c                    |   7 +-
 arch/csky/kernel/traps.c                  |  10 +-
 arch/csky/kernel/vdso.c                   | 127 ++++++----
 arch/csky/kernel/vdso/.gitignore          |   4 +
 arch/csky/kernel/vdso/Makefile            |  72 ++++++
 arch/csky/kernel/vdso/note.S              |  12 +
 arch/csky/kernel/vdso/rt_sigreturn.S      |  14 ++
 arch/csky/kernel/vdso/so2s.sh             |   5 +
 arch/csky/kernel/vdso/vdso.S              |  16 ++
 arch/csky/kernel/vdso/vdso.lds.S          |  58 +++++
 arch/csky/kernel/vdso/vgettimeofday.c     |  28 +++
 arch/csky/kernel/vmlinux.lds.S            |   2 +-
 arch/csky/mm/fault.c                      | 388 ++++++++++++++++++------------
 arch/csky/mm/init.c                       |  56 +++--
 arch/csky/mm/tlb.c                        |  42 +++-
 include/linux/cpuhotplug.h                |   1 +
 94 files changed, 1347 insertions(+), 992 deletions(-)
 delete mode 100644 arch/csky/include/asm/atomic.h
 create mode 100644 arch/csky/include/asm/clocksource.h
 create mode 100644 arch/csky/include/asm/futex.h
 create mode 100644 arch/csky/include/asm/vdso/clocksource.h
 create mode 100644 arch/csky/include/asm/vdso/gettimeofday.h
 create mode 100644 arch/csky/include/asm/vdso/processor.h
 create mode 100644 arch/csky/include/asm/vdso/vsyscall.h
 create mode 100644 arch/csky/kernel/vdso/.gitignore
 create mode 100644 arch/csky/kernel/vdso/Makefile
 create mode 100644 arch/csky/kernel/vdso/note.S
 create mode 100644 arch/csky/kernel/vdso/rt_sigreturn.S
 create mode 100755 arch/csky/kernel/vdso/so2s.sh
 create mode 100644 arch/csky/kernel/vdso/vdso.S
 create mode 100644 arch/csky/kernel/vdso/vdso.lds.S
 create mode 100644 arch/csky/kernel/vdso/vgettimeofday.c

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [GIT PULL] csky changes for v5.12-rc1
  2021-02-28  3:43 [GIT PULL] csky changes for v5.12-rc1 guoren
@ 2021-02-28 20:14 ` pr-tracker-bot
  2021-02-28 20:36 ` Linus Torvalds
  1 sibling, 0 replies; 5+ messages in thread
From: pr-tracker-bot @ 2021-02-28 20:14 UTC (permalink / raw)
  To: guoren; +Cc: torvalds, arnd, linux-kernel, linux-arch, linux-csky

The pull request you sent on Sun, 28 Feb 2021 11:43:00 +0800:

> https://github.com/c-sky/csky-linux.git tags/csky-for-linus-5.12-rc1

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/cd278456d4ca0e6b3d5e10ace4566524baa144eb

Thank you!

-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/prtracker.html

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [GIT PULL] csky changes for v5.12-rc1
  2021-02-28  3:43 [GIT PULL] csky changes for v5.12-rc1 guoren
  2021-02-28 20:14 ` pr-tracker-bot
@ 2021-02-28 20:36 ` Linus Torvalds
  2021-03-01  9:55   ` Guo Ren
  2021-03-01 10:24   ` Peter Zijlstra
  1 sibling, 2 replies; 5+ messages in thread
From: Linus Torvalds @ 2021-02-28 20:36 UTC (permalink / raw)
  To: Guo Ren, Peter Zijlstra, Thomas Gleixner, Sebastian Andrzej Siewior
  Cc: Arnd Bergmann, Linux Kernel Mailing List, linux-arch, linux-csky

So this is entirely unrelated to the csky pull request, and is more of
a generic "the perf CPU hotplug thing seems a complete mess".

The csky thing is just the latest - of many - that have been bitten by
the mess, and the one that added yet another hotplug state, and
finally made me go "Let's at least talk about this"

For csky, the problem is this:

On Sat, Feb 27, 2021 at 7:43 PM <guoren@kernel.org> wrote:
>
> arch/csky patches for 5.12-rc1
>
>  - Fixup perf probe failed

and in this case it is 398cb92495cc ("csky: Fixup perf probe failed")
in my current -git tree.

But it's also

    cf6acb8bdb1d ("s390/cpumf: Add support for complete counter set extraction")
    dcb5cdf60a1f ("powerpc/perf/hv-gpci: Add cpu hotplug support")
    1a8f0886a600 ("powerpc/perf/hv-24x7: Add cpu hotplug support")
    6b7ce8927b5a ("irqchip: RISC-V per-HART local interrupt controller driver")
    e9b880581d55 ("coresight: cti: Add CPU Hotplug handling to CTI driver")
    e0685fa228fd ("arm64: Retrieve stolen time as paravirtualized guest")
    6282edb72bed ("clocksource/drivers/exynos_mct: Increase priority
over ARM arch timer")
    78f4e932f776 ("x86/microcode, cpuhotplug: Add a microcode loader
CPU hotplug callback")
    72c69dcddce1 ("powerpc/perf: Trace imc events detection and cpuhotplug")
    5861381d4866 ("PM / arch: x86: Rework the
MSR_IA32_ENERGY_PERF_BIAS handling")
    69c32972d593 ("drivers/perf: Add Cavium ThunderX2 SoC UNCORE PMU driver")
    ...

and that's not even the complete list.

Does it really make sense to have this kind of silly enumeration of
many (MANY!) different arch CPU hotplug state indexes, where most of
them are relevant only to that particular architecture..

No, I don't think this is a _problem_, but it's kind of ugly, wouldn't
you agree?

Wouldn't it be better to just reserve N different states for the
architecture hotplug state, and then let each architecture decide how
they want to order them?

Or better yet, make at least some of them architecture-neutral.
Because now there are drivers that clearly are very tied to one
architecture - or SoCs (look at various timer things) - do they really
want or need their own architecture- or SoC-specific hotplug state?
IOW, do we really need all of these:

        CPUHP_AP_ARM_ARCH_TIMER_STARTING,
        CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
        CPUHP_AP_JCORE_TIMER_STARTING,
        CPUHP_AP_QCOM_TIMER_STARTING,
        CPUHP_AP_TEGRA_TIMER_STARTING,
        CPUHP_AP_ARMADA_TIMER_STARTING,
        CPUHP_AP_MARCO_TIMER_STARTING,
        CPUHP_AP_MIPS_GIC_TIMER_STARTING,
        CPUHP_AP_ARC_TIMER_STARTING,
        CPUHP_AP_RISCV_TIMER_STARTING,
        CPUHP_AP_CLINT_TIMER_STARTING,
        CPUHP_AP_CSKY_TIMER_STARTING,
        CPUHP_AP_HYPERV_TIMER_STARTING,
        CPUHP_AP_KVM_ARM_TIMER_STARTING,
        CPUHP_AP_DUMMY_TIMER_STARTING,

as separate hotplug events?

Whatever. I don't really care deeply, but this just smells a bit to me.

Comments?

                   Linus

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [GIT PULL] csky changes for v5.12-rc1
  2021-02-28 20:36 ` Linus Torvalds
@ 2021-03-01  9:55   ` Guo Ren
  2021-03-01 10:24   ` Peter Zijlstra
  1 sibling, 0 replies; 5+ messages in thread
From: Guo Ren @ 2021-03-01  9:55 UTC (permalink / raw)
  To: Linus Torvalds
  Cc: Peter Zijlstra, Thomas Gleixner, Sebastian Andrzej Siewior,
	Arnd Bergmann, Linux Kernel Mailing List, linux-arch, linux-csky

Hi all,

On Mon, Mar 1, 2021 at 4:36 AM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> So this is entirely unrelated to the csky pull request, and is more of
> a generic "the perf CPU hotplug thing seems a complete mess".
>
> The csky thing is just the latest - of many - that have been bitten by
> the mess, and the one that added yet another hotplug state, and
> finally made me go "Let's at least talk about this"
>
> For csky, the problem is this:
>
> On Sat, Feb 27, 2021 at 7:43 PM <guoren@kernel.org> wrote:
> >
> > arch/csky patches for 5.12-rc1
> >
> >  - Fixup perf probe failed
>
> and in this case it is 398cb92495cc ("csky: Fixup perf probe failed")
> in my current -git tree.
>
> But it's also
>
>     cf6acb8bdb1d ("s390/cpumf: Add support for complete counter set extraction")
>     dcb5cdf60a1f ("powerpc/perf/hv-gpci: Add cpu hotplug support")
>     1a8f0886a600 ("powerpc/perf/hv-24x7: Add cpu hotplug support")
>     6b7ce8927b5a ("irqchip: RISC-V per-HART local interrupt controller driver")
>     e9b880581d55 ("coresight: cti: Add CPU Hotplug handling to CTI driver")
>     e0685fa228fd ("arm64: Retrieve stolen time as paravirtualized guest")
>     6282edb72bed ("clocksource/drivers/exynos_mct: Increase priority
> over ARM arch timer")
>     78f4e932f776 ("x86/microcode, cpuhotplug: Add a microcode loader
> CPU hotplug callback")
>     72c69dcddce1 ("powerpc/perf: Trace imc events detection and cpuhotplug")
>     5861381d4866 ("PM / arch: x86: Rework the
> MSR_IA32_ENERGY_PERF_BIAS handling")
>     69c32972d593 ("drivers/perf: Add Cavium ThunderX2 SoC UNCORE PMU driver")
>     ...
>
> and that's not even the complete list.
>
> Does it really make sense to have this kind of silly enumeration of
> many (MANY!) different arch CPU hotplug state indexes, where most of
> them are relevant only to that particular architecture..
>
> No, I don't think this is a _problem_, but it's kind of ugly, wouldn't
> you agree?
>
> Wouldn't it be better to just reserve N different states for the
> architecture hotplug state, and then let each architecture decide how
> they want to order them?
>
> Or better yet, make at least some of them architecture-neutral.
> Because now there are drivers that clearly are very tied to one
> architecture - or SoCs (look at various timer things) - do they really
> want or need their own architecture- or SoC-specific hotplug state?
> IOW, do we really need all of these:
>
>         CPUHP_AP_ARM_ARCH_TIMER_STARTING,
>         CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
>         CPUHP_AP_JCORE_TIMER_STARTING,
>         CPUHP_AP_QCOM_TIMER_STARTING,
>         CPUHP_AP_TEGRA_TIMER_STARTING,
>         CPUHP_AP_ARMADA_TIMER_STARTING,
>         CPUHP_AP_MARCO_TIMER_STARTING,
>         CPUHP_AP_MIPS_GIC_TIMER_STARTING,
>         CPUHP_AP_ARC_TIMER_STARTING,
>         CPUHP_AP_RISCV_TIMER_STARTING,
>         CPUHP_AP_CLINT_TIMER_STARTING,
>         CPUHP_AP_CSKY_TIMER_STARTING,
>         CPUHP_AP_HYPERV_TIMER_STARTING,
>         CPUHP_AP_KVM_ARM_TIMER_STARTING,
>         CPUHP_AP_DUMMY_TIMER_STARTING,
>
> as separate hotplug events?
>
> Whatever. I don't really care deeply, but this just smells a bit to me.
>
> Comments?

We could use CPUHP_AP_ONLINE_DYN to reduce most of the above.

Here is the example of csky:

diff --git a/arch/csky/kernel/perf_event.c b/arch/csky/kernel/perf_event.c
index e5f1842..ccc27c3 100644
--- a/arch/csky/kernel/perf_event.c
+++ b/arch/csky/kernel/perf_event.c
@@ -1319,10 +1319,10 @@ int csky_pmu_device_probe(struct platform_device *pdev,
                pr_notice("[perf] PMU request irq fail!\n");
        }

-       ret = cpuhp_setup_state(CPUHP_AP_PERF_CSKY_ONLINE, "AP_PERF_ONLINE",
+       ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN,
"arch/csky/perf_event:starting",
                                csky_pmu_starting_cpu,
                                csky_pmu_dying_cpu);
-       if (ret) {
+       if (ret < 0) {
                csky_pmu_free_irq();
                free_percpu(csky_pmu.hw_events);
                return ret;
diff --git a/drivers/clocksource/timer-mp-csky.c
b/drivers/clocksource/timer-mp-csky.c
index 183a995..fc17d77 100644
--- a/drivers/clocksource/timer-mp-csky.c
+++ b/drivers/clocksource/timer-mp-csky.c
@@ -151,11 +151,11 @@ static int __init csky_mptimer_init(struct
device_node *np)
        clocksource_register_hz(&csky_clocksource, timer_of_rate(to));
        sched_clock_register(sched_clock_read, 32, timer_of_rate(to));

-       ret = cpuhp_setup_state(CPUHP_AP_CSKY_TIMER_STARTING,
+       ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN,
                                "clockevents/csky/timer:starting",
                                csky_mptimer_starting_cpu,
                                csky_mptimer_dying_cpu);
-       if (ret)
+       if (ret < 0)
                return -EINVAL;

        return 0;
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index f14adb8..5abcfda 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -134,7 +134,6 @@ enum cpuhp_state {
        CPUHP_AP_ARC_TIMER_STARTING,
        CPUHP_AP_RISCV_TIMER_STARTING,
        CPUHP_AP_CLINT_TIMER_STARTING,
-       CPUHP_AP_CSKY_TIMER_STARTING,
        CPUHP_AP_HYPERV_TIMER_STARTING,
        CPUHP_AP_KVM_STARTING,
        CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
@@ -186,7 +185,6 @@ enum cpuhp_state {
        CPUHP_AP_PERF_POWERPC_TRACE_IMC_ONLINE,
        CPUHP_AP_PERF_POWERPC_HV_24x7_ONLINE,
        CPUHP_AP_PERF_POWERPC_HV_GPCI_ONLINE,
-       CPUHP_AP_PERF_CSKY_ONLINE,
        CPUHP_AP_WATCHDOG_ONLINE,
        CPUHP_AP_WORKQUEUE_ONLINE,
        CPUHP_AP_RCUTREE_ONLINE,


--
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [GIT PULL] csky changes for v5.12-rc1
  2021-02-28 20:36 ` Linus Torvalds
  2021-03-01  9:55   ` Guo Ren
@ 2021-03-01 10:24   ` Peter Zijlstra
  1 sibling, 0 replies; 5+ messages in thread
From: Peter Zijlstra @ 2021-03-01 10:24 UTC (permalink / raw)
  To: Linus Torvalds
  Cc: Guo Ren, Thomas Gleixner, Sebastian Andrzej Siewior,
	Arnd Bergmann, Linux Kernel Mailing List, linux-arch, linux-csky

On Sun, Feb 28, 2021 at 12:36:29PM -0800, Linus Torvalds wrote:
> So this is entirely unrelated to the csky pull request, and is more of
> a generic "the perf CPU hotplug thing seems a complete mess".

Yes, I've noticed that a few times but it never seemed to have made it
to the top of the todo list :/ Let me see what I can do about that.

^ permalink raw reply	[flat|nested] 5+ messages in thread

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Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-02-28  3:43 [GIT PULL] csky changes for v5.12-rc1 guoren
2021-02-28 20:14 ` pr-tracker-bot
2021-02-28 20:36 ` Linus Torvalds
2021-03-01  9:55   ` Guo Ren
2021-03-01 10:24   ` Peter Zijlstra

Linux-csky Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-csky/0 linux-csky/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-csky linux-csky/ https://lore.kernel.org/linux-csky \
		linux-csky@vger.kernel.org
	public-inbox-index linux-csky

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-csky


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git