From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/8] powerpc/vdso32 enhancement and optimisation
Date: Thu, 22 Aug 2019 16:34:00 +0000 (UTC) [thread overview]
Message-ID: <cover.1566491310.git.christophe.leroy@c-s.fr> (raw)
This series:
- adds getcpu()
- 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
It puts together the three patches sent out earlier allthought they
were not presented as a series, hence the 'v2' tag for now.
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
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.h | 2 +
arch/powerpc/include/asm/vdso_datapage.h | 6 +-
arch/powerpc/kernel/asm-offsets.c | 7 +-
arch/powerpc/kernel/head_32.h | 13 ++++
arch/powerpc/kernel/head_booke.h | 11 +++
arch/powerpc/kernel/time.c | 1 +
arch/powerpc/kernel/vdso.c | 5 --
arch/powerpc/kernel/vdso32/Makefile | 4 +-
arch/powerpc/kernel/vdso32/cacheflush.S | 33 ++++++--
arch/powerpc/kernel/vdso32/datapage.S | 32 ++------
arch/powerpc/kernel/vdso32/datapage.h | 11 +++
arch/powerpc/kernel/vdso32/getcpu.S | 13 +++-
arch/powerpc/kernel/vdso32/gettimeofday.S | 125 +++++++++++++++++++++---------
arch/powerpc/kernel/vdso32/vdso32.lds.S | 2 -
arch/powerpc/kernel/vdso64/gettimeofday.S | 7 +-
15 files changed, 183 insertions(+), 89 deletions(-)
create mode 100644 arch/powerpc/kernel/vdso32/datapage.h
--
2.13.3
next reply other threads:[~2019-08-22 16:41 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-22 16:34 Christophe Leroy [this message]
2019-08-22 16:34 ` [PATCH v2 1/8] powerpc/32: Add VDSO version of getcpu Christophe Leroy
2019-09-18 5:51 ` Michael Ellerman
2019-10-29 16:10 ` Christophe Leroy
2019-08-22 16:34 ` [PATCH v2 2/8] powerpc/vdso32: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE Christophe Leroy
2019-08-22 16:34 ` [PATCH v2 3/8] powerpc: Fix vDSO clock_getres() Christophe Leroy
2019-08-22 17:17 ` Sasha Levin
2019-08-22 16:34 ` [PATCH v2 4/8] powerpc/vdso32: inline __get_datapage() Christophe Leroy
2019-08-26 5:44 ` Santosh Sivaraj
2019-09-13 10:59 ` Christophe Leroy
2019-09-13 13:31 ` Santosh Sivaraj
2019-09-13 13:50 ` Christophe Leroy
2019-09-13 14:03 ` Santosh Sivaraj
2019-10-29 16:12 ` Christophe Leroy
2019-08-22 16:34 ` [PATCH v2 5/8] powerpc/vdso32: Don't read cache line size from the datapage on PPC32 Christophe Leroy
2019-08-22 16:34 ` [PATCH v2 6/8] powerpc/vdso32: use LOAD_REG_IMMEDIATE() Christophe Leroy
2019-08-22 16:34 ` [PATCH v2 7/8] powerpc/vdso32: implement clock_getres entirely Christophe Leroy
2019-08-22 16:34 ` [PATCH v2 8/8] powerpc/vdso32: miscellaneous optimisations Christophe Leroy
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