linux-kernel - Re: [PATCH v2 0/5] eagerfpu patches for tip/x86/fpu

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Message-ID: <20120910181614.GE4365@aftab.osrc.amd.com>
Date:	Mon, 10 Sep 2012 20:16:14 +0200
From:	Borislav Petkov <bp@...64.org>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
Cc:	hpa@...or.com, mingo@...nel.org, torvalds@...ux-foundation.org,
	andreas.herrmann3@....com, bp@...64.org, robert.richter@....com,
	linux-kernel@...r.kernel.org,
	André Przywara <andre.przywara@....com>
Subject: Re: [PATCH v2 0/5] eagerfpu patches for tip/x86/fpu

On Mon, Sep 10, 2012 at 11:11:00AM -0700, Suresh Siddha wrote:

+ Andre.

> v2 version of the previous patchset https://lkml.org/lkml/2012/9/7/548
> that decouples eagerfpu into a synthetic cpuid feature.
> 
> changes from v1:
> * Made "eagerfpu=" boot parameter tri-state
> * removed the cpu_has_xmm check in the fx_finit (not related to eagerfpu
>   per-say, but this patchset touches that area of code).
> 
> Suresh Siddha (5):
>   x86, fpu: decouple non-lazy/eager fpu restore from xsave
>   x86, fpu: enable eagerfpu by default for xsaveopt
>   x86, fpu: move check_fpu() after alternative_instructions()
>   x86, fpu: make eagerfpu= boot param tri-state
>   x86, fpu: remove cpu_has_xmm check in the fx_finit()
> 
>  Documentation/kernel-parameters.txt |    6 ++
>  arch/x86/include/asm/cpufeature.h   |    3 +
>  arch/x86/include/asm/fpu-internal.h |   53 ++++++++++++++------
>  arch/x86/kernel/cpu/bugs.c          |    7 ++-
>  arch/x86/kernel/cpu/common.c        |    2 -
>  arch/x86/kernel/i387.c              |   25 +++------
>  arch/x86/kernel/process.c           |    2 +-
>  arch/x86/kernel/traps.c             |    2 +-
>  arch/x86/kernel/xsave.c             |   95 ++++++++++++++++++++++++-----------
>  9 files changed, 129 insertions(+), 66 deletions(-)
> 
> -- 
> 1.7.6.5
> 
> 

-- 
Regards/Gruss,
Boris.

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