linux-kernel - Re: [PATCH v2] x86/cpufeatures.h: Enumerate A Few New AVX-512 Features

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Date:	Thu, 10 Mar 2016 15:18:32 -0800
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Dave Hansen <dave.hansen@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ravi V Shankar <ravi.v.shankar@...el.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>, x86 <x86@...nel.org>
Subject: Re: [PATCH v2] x86/cpufeatures.h: Enumerate A Few New AVX-512
 Features

On 03/10/2016 01:35 PM, Dave Hansen wrote:
> On 03/10/2016 04:23 PM, Fenghua Yu wrote:
>> A few new AVX-512 instruction groups/features are added in cpufeatures.h
>> for enuermation: AVX512DQ, AVX512BW, and AVX512VL.
>>
>> The specification for latest AVX-512 including the features can be found at
>> https://software.intel.com/sites/default/files/managed/07/b7/319433-023.pdf
> 
> Do we need to add these to fpu__xstate_clear_all_cpu_caps()?
> 

I would think so.

	-hpa