From: pwalmsley@nvidia.com (Paul Walmsley)
To: linux-arm-kernel@lists.infradead.org
Subject: [GIT PULL] prefetch support for 3.13
Date: Wed, 30 Oct 2013 08:24:35 -0700 [thread overview]
Message-ID: <527124B3.9090305@nvidia.com> (raw)
In-Reply-To: <20131009171312.GJ8378@mudshark.cambridge.arm.com>
Hi Will et al.,
On 10/09/2013 10:13 AM, Will Deacon wrote:
> Hi Russell,
>
> Please pull the following patches for 3.13. They add support for the pldw
> instruction (prefetch with intent to modify) in ARMv7 SMP cores, which is
> then used to gain a measurable performance boost for particular atomic
> sequences.
Looks like the pldw changes require binutils >= 2.21. Might be worth
considering a patch to update Documentation/Changes?
- Paul
>
> Cheers,
>
> Will
>
> --->8
>
> The following changes since commit 15c03dd4859ab16f9212238f29dd315654aa94f6:
>
> Linux 3.12-rc3 (2013-09-29 15:02:38 -0700)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-rmk/prefetch
>
> for you to fetch changes up to d779c07dd72098a7416d907494f958213b7726f3:
>
> ARM: bitops: prefetch the destination word for write prior to strex (2013-09-30 16:42:56 +0100)
>
> ----------------------------------------------------------------
> Will Deacon (6):
> ARM: prefetch: remove redundant "cc" clobber
> ARM: smp_on_up: move inline asm ALT_SMP patching macro out of spinlock.h
> ARM: prefetch: add support for prefetchw using pldw on SMP ARMv7+ CPUs
> ARM: locks: prefetch the destination word for write prior to strex
> ARM: atomics: prefetch the destination word for write prior to strex
> ARM: bitops: prefetch the destination word for write prior to strex
>
> arch/arm/include/asm/atomic.h | 7 +++++++
> arch/arm/include/asm/processor.h | 33 +++++++++++++++++++++++++--------
> arch/arm/include/asm/spinlock.h | 28 ++++++++++++++--------------
> arch/arm/include/asm/spinlock_types.h | 2 +-
> arch/arm/include/asm/unified.h | 4 ++++
> arch/arm/lib/bitops.h | 5 +++++
> 6 files changed, 56 insertions(+), 23 deletions(-)
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2013-10-30 15:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-09 17:13 [GIT PULL] prefetch support for 3.13 Will Deacon
2013-10-30 15:24 ` Paul Walmsley [this message]
2013-10-30 15:25 ` Russell King - ARM Linux
2013-10-30 15:32 ` Stephen Warren
2013-10-30 15:53 ` Paul Walmsley
2013-10-30 16:01 ` Russell King - ARM Linux
2013-11-11 9:08 ` Uwe Kleine-König
2013-11-11 10:31 ` Russell King - ARM Linux
2013-11-11 11:25 ` Will Deacon
2013-11-19 9:27 ` Uwe Kleine-König
2013-11-19 12:01 ` Will Deacon
2013-11-24 9:54 ` Dirk Behme
2013-11-24 10:11 ` Russell King - ARM Linux
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