From: Ingo Molnar <mingo@elte.hu>
To: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: hpa@linux.intel.com, tglx@linutronix.de, linux-kernel@vger.kernel.org
Subject: Re: [patch] x86: add linux kernel support for YMM state
Date: Sun, 12 Apr 2009 13:13:14 +0200 [thread overview]
Message-ID: <20090412111314.GF25392@elte.hu> (raw)
In-Reply-To: <1239402084.27006.8057.camel@localhost.localdomain>
* Suresh Siddha <suresh.b.siddha@intel.com> wrote:
> From: Suresh Siddha <suresh.b.siddha@intel.com>
> Subject: x86: add linux kernel support for YMM state
>
> Intel Advanced Vector Extensions (AVX) introduce 256-bit vector
> processing capability. More about AVX at
> http://software.intel.com/sites/avx
>
> Add OS support for YMM state management using xsave/xrstor
> infrastructure to support AVX.
>
> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
This looks very straightforward - if a CPU announces this capability
we save/restore that state via xsave/xrstor.
So i've applied it to x86/urgent - looks uncontroversial enough to
still go into 2.6.30. Have you tested it on real silicon too?
Ingo
prev parent reply other threads:[~2009-04-12 11:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-10 22:21 Suresh Siddha
2009-04-12 11:12 ` [tip:x86/urgent] " Suresh Siddha
2009-04-12 11:13 ` Ingo Molnar [this message]
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