linux-kernel - Re: [PATCH] sha: Enable cpuid check for Intel SHA extensions implementations

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Date:	Wed, 19 Aug 2015 09:49:58 -0700
From:	Tim Chen <tim.c.chen@...ux.intel.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Dave Hansen <dave.hansen@...el.com>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Chandramouli Narayanan <mouli@...ux.intel.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, Borislav Petkov <bp@...e.de>,
	mouli_7982@...oo.com
Subject: Re: [PATCH] sha: Enable cpuid check for Intel SHA extensions
 implementations

On Tue, 2015-08-18 at 18:46 +0200, Thomas Gleixner wrote:
> On Mon, 17 Aug 2015, Tim Chen wrote:
> > Signed-off-by: Chandramouli Narayanan <mouli@...ux.intel.com>
> > Signed-off-by: Tim Chen <tim.c.chen@...ux.intel.com>
> 
> And now the question who authored this complex one liner ....
> 

Mouli did the patch originally but he left the company.  So
I'm picking it up.

Tim

> > ---
> >  arch/x86/include/asm/cpufeature.h | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
> > index 3d6606f..a94f83d 100644
> > --- a/arch/x86/include/asm/cpufeature.h
> > +++ b/arch/x86/include/asm/cpufeature.h
> > @@ -239,6 +239,7 @@
> >  #define X86_FEATURE_AVX512PF	( 9*32+26) /* AVX-512 Prefetch */
> >  #define X86_FEATURE_AVX512ER	( 9*32+27) /* AVX-512 Exponential and Reciprocal */
> >  #define X86_FEATURE_AVX512CD	( 9*32+28) /* AVX-512 Conflict Detection */
> > +#define X86_FEATURE_SHA_NI	( 9*32+29) /* SHA1/SHA256 Instruction Extensions */
> >  
> >  /* Extended state features, CPUID level 0x0000000d:1 (eax), word 10 */
> >  #define X86_FEATURE_XSAVEOPT	(10*32+ 0) /* XSAVEOPT */
> > -- 
> > 1.8.3.1
> > 
> > 
> > 
> > 


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