From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [GIT PULL] prefetch support for 3.13
Date: Wed, 30 Oct 2013 15:25:54 +0000 [thread overview]
Message-ID: <20131030152553.GD16735@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <527124B3.9090305@nvidia.com>
On Wed, Oct 30, 2013 at 08:24:35AM -0700, Paul Walmsley wrote:
> 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?
Not really - because that says "for all architectures the minimum
requirement is now 2.21 or later" and that's certainly not the case.
It's only ARMv7 which requires this.
next prev parent reply other threads:[~2013-10-30 15:25 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
2013-10-30 15:25 ` Russell King - ARM Linux [this message]
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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