Re: [PATCH v2] x86,acpi: Limit "Dummy wait" workaround to older AMD and Intel processors

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On Fri, Sep 23, 2022 at 09:08:01PM +0530, K Prateek Nayak wrote:
> diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
> index ef4775c6db01..fcd3617ed315 100644
> --- a/arch/x86/include/asm/cpufeatures.h
> +++ b/arch/x86/include/asm/cpufeatures.h
> @@ -460,5 +460,6 @@
>  #define X86_BUG_MMIO_UNKNOWN		X86_BUG(26) /* CPU is too old and its MMIO Stale Data status is unknown */
>  #define X86_BUG_RETBLEED		X86_BUG(27) /* CPU is affected by RETBleed */
>  #define X86_BUG_EIBRS_PBRSB		X86_BUG(28) /* EIBRS is vulnerable to Post Barrier RSB Predictions */
> +#define X86_BUG_STPCLK			X86_BUG(29) /* STPCLK# signal does not get asserted in time during IOPORT based C-state entry */

What for?

Did you not see this thread?

https://lore.kernel.org/r/78d13a19-2806-c8af-573e-7f2625edfab8@xxxxxxxxx

-- 
Regards/Gruss,
    Boris.

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



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