linux-kernel - Re: A question about prefetchw detection in "x86/asm: Cleanup prefetch primitives"

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Message-ID: <20230621111346.GFZJLbavDw1JiLi34n@fat_crate.local>
Date:   Wed, 21 Jun 2023 13:13:46 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Xi Ruoyao <xry111@...111.site>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: A question about prefetchw detection in "x86/asm: Cleanup
 prefetch primitives"

On Wed, Jun 21, 2023 at 06:57:40PM +0800, Xi Ruoyao wrote:
> I intend to implement the same logic for Glibc.  I can understand "3DNow
> implies PREFETCHW", but is there a bibliographical reference about "LM
> implies PREFETCHW" so I can convince the Glibc maintainers for the
> change?

https://www.amd.com/system/files/TechDocs/24594.pdf

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette