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SubjectRe: [PATCH v8 0/8] powerpc: switch VDSO to C implementation
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Hi Michael,

Le 28/04/2020 à 15:16, Christophe Leroy a écrit :
> This is the seventh version of a series to switch powerpc VDSO to
> generic C implementation.
>
> Main changes since v7 are:
> - Added gettime64 on PPC32
>
> This series applies on today's powerpc/merge branch.
>
> See the last patches for details on changes and performance.

Do you have any plans for this series ?

Even if you don't feel like merging it this cycle, I think patches 1 to
3 are worth it.

Christophe

>
> Christophe Leroy (8):
> powerpc/vdso64: Switch from __get_datapage() to get_datapage inline
> macro
> powerpc/vdso: Remove __kernel_datapage_offset and simplify
> __get_datapage()
> powerpc/vdso: Remove unused \tmp param in __get_datapage()
> powerpc/processor: Move cpu_relax() into asm/vdso/processor.h
> powerpc/vdso: Prepare for switching VDSO to generic C implementation.
> powerpc/vdso: Switch VDSO to generic C implementation.
> lib/vdso: force inlining of __cvdso_clock_gettime_common()
> powerpc/vdso: Provide __kernel_clock_gettime64() on vdso32
>
> arch/powerpc/Kconfig | 2 +
> arch/powerpc/include/asm/clocksource.h | 7 +
> arch/powerpc/include/asm/processor.h | 10 +-
> arch/powerpc/include/asm/vdso/clocksource.h | 7 +
> arch/powerpc/include/asm/vdso/gettimeofday.h | 175 +++++++++++
> arch/powerpc/include/asm/vdso/processor.h | 23 ++
> arch/powerpc/include/asm/vdso/vsyscall.h | 25 ++
> arch/powerpc/include/asm/vdso_datapage.h | 50 ++--
> arch/powerpc/kernel/asm-offsets.c | 49 +--
> arch/powerpc/kernel/time.c | 91 +-----
> arch/powerpc/kernel/vdso.c | 58 +---
> arch/powerpc/kernel/vdso32/Makefile | 32 +-
> arch/powerpc/kernel/vdso32/cacheflush.S | 2 +-
> arch/powerpc/kernel/vdso32/config-fake32.h | 34 +++
> arch/powerpc/kernel/vdso32/datapage.S | 7 +-
> arch/powerpc/kernel/vdso32/gettimeofday.S | 300 +------------------
> arch/powerpc/kernel/vdso32/vdso32.lds.S | 8 +-
> arch/powerpc/kernel/vdso32/vgettimeofday.c | 35 +++
> arch/powerpc/kernel/vdso64/Makefile | 23 +-
> arch/powerpc/kernel/vdso64/cacheflush.S | 9 +-
> arch/powerpc/kernel/vdso64/datapage.S | 31 +-
> arch/powerpc/kernel/vdso64/gettimeofday.S | 243 +--------------
> arch/powerpc/kernel/vdso64/vdso64.lds.S | 7 +-
> arch/powerpc/kernel/vdso64/vgettimeofday.c | 29 ++
> lib/vdso/gettimeofday.c | 2 +-
> 25 files changed, 460 insertions(+), 799 deletions(-)
> create mode 100644 arch/powerpc/include/asm/clocksource.h
> create mode 100644 arch/powerpc/include/asm/vdso/clocksource.h
> create mode 100644 arch/powerpc/include/asm/vdso/gettimeofday.h
> create mode 100644 arch/powerpc/include/asm/vdso/processor.h
> create mode 100644 arch/powerpc/include/asm/vdso/vsyscall.h
> create mode 100644 arch/powerpc/kernel/vdso32/config-fake32.h
> create mode 100644 arch/powerpc/kernel/vdso32/vgettimeofday.c
> create mode 100644 arch/powerpc/kernel/vdso64/vgettimeofday.c
>

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