linux-kernel - Re: [PATCH] x86/CPU/AMD: Fix LLC ID bit-shift calculation

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Message-ID: <20180618185654.GG24921@zn.tnic>
Date:   Mon, 18 Jun 2018 20:57:00 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Suthikulpanit, Suravee" <suravee.suthikulpanit@....com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org, tglx@...utronix.de,
        mingo@...hat.com
Subject: Re: [PATCH] x86/CPU/AMD: Fix LLC ID bit-shift calculation

On Mon, Jun 18, 2018 at 01:46:11PM -0500, Suthikulpanit, Suravee wrote:
> Your understanding is correct. I was not sure about what you were referring
> to earlier. Basically, the number of threads sharing cache is used to
> calculate the amount of right-shifting of APIC ID, which results in removing
> the core and thread ID bits.

Yap, that's exactly what I was hinting at, thanks. I'll add it to the
commit message.

-- 
Regards/Gruss,
    Boris.

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