Messages in this thread | | | From | Christophe Leroy <> | Subject | [PATCH v4 0/8] powerpc/vdso32 enhancement and optimisation | Date | Mon, 2 Dec 2019 07:57:26 +0000 (UTC) |
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This series: - adds getcpu() on non SMP ppc32 - adds coarse clocks in clock_gettime - fixes and adds all clocks in clock_getres - optimises the retrieval of the datapage address - optimises the cache functions
v4: - Rebased on top of ceb307474506 ("Merge tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground") - Fixed build failure with old binutils reported by mpe (patch 4)
v3: - Dropped the 'fast syscall' hack for getcpu() on SMP. - Moved get_datapage macro into asm/vdso_datapage.h so that it can be used on PPC64 as well.
v2: - Used named labels in patch 2 - Added patch from Vincenzo to fix clock_getres() (patch 3) - Removed unnecessary label in patch 4 as suggested by Segher - Added patches 5 to 8
Christophe Leroy (8): powerpc/32: Add VDSO version of getcpu on non SMP powerpc/vdso32: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE powerpc: Fix vDSO clock_getres() powerpc/vdso32: inline __get_datapage() powerpc/vdso32: Don't read cache line size from the datapage on PPC32. powerpc/vdso32: use LOAD_REG_IMMEDIATE() powerpc/vdso32: implement clock_getres entirely powerpc/vdso32: miscellaneous optimisations
arch/powerpc/include/asm/vdso_datapage.h | 16 +++- arch/powerpc/kernel/asm-offsets.c | 7 +- arch/powerpc/kernel/time.c | 1 + arch/powerpc/kernel/vdso.c | 5 -- arch/powerpc/kernel/vdso32/Makefile | 4 +- arch/powerpc/kernel/vdso32/cacheflush.S | 32 ++++++-- arch/powerpc/kernel/vdso32/datapage.S | 31 +------- arch/powerpc/kernel/vdso32/getcpu.S | 23 +++++- arch/powerpc/kernel/vdso32/gettimeofday.S | 124 +++++++++++++++++++++--------- arch/powerpc/kernel/vdso32/vdso32.lds.S | 2 +- arch/powerpc/kernel/vdso64/gettimeofday.S | 7 +- 11 files changed, 164 insertions(+), 88 deletions(-)
-- 2.13.3
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