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Message-ID: <20211106220121.GA29613@ranerica-svr.sc.intel.com>
Date: Sat, 6 Nov 2021 15:01:21 -0700
From: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
To: Borislav Petkov <bp@...en8.de>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
linux-pm@...r.kernel.org, x86@...nel.org,
linux-doc@...r.kernel.org, Len Brown <len.brown@...el.com>,
Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Aubrey Li <aubrey.li@...ux.intel.com>,
Amit Kucheria <amitk@...nel.org>,
Andi Kleen <ak@...ux.intel.com>,
Tim Chen <tim.c.chen@...ux.intel.com>,
"Ravi V. Shankar" <ravi.v.shankar@...el.com>,
Ricardo Neri <ricardo.neri@...el.com>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/7] x86: Add definitions for the Intel Hardware Feedback
Interface
On Sat, Nov 06, 2021 at 11:30:51AM +0100, Borislav Petkov wrote:
> On Fri, Nov 05, 2021 at 06:33:07PM -0700, Ricardo Neri wrote:
> > Add the CPUID feature bit and the model-specific registers needed to
> > identify and configure the Intel Hardware Feedback Interface.
> >
> > Cc: Andi Kleen <ak@...ux.intel.com>
> > Cc: Aubrey Li <aubrey.li@...ux.intel.com>
> > Cc: Len Brown <len.brown@...el.com>
> > Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
> > Cc: Tim Chen <tim.c.chen@...ux.intel.com>
> > Cc: "Ravi V. Shankar" <ravi.v.shankar@...el.com>
> > Signed-off-by: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
> > ---
> > arch/x86/include/asm/cpufeatures.h | 1 +
> > arch/x86/include/asm/msr-index.h | 6 ++++++
> > 2 files changed, 7 insertions(+)
> >
> > diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
> > index d0ce5cfd3ac1..d76d8daf1b2b 100644
> > --- a/arch/x86/include/asm/cpufeatures.h
> > +++ b/arch/x86/include/asm/cpufeatures.h
> > @@ -325,6 +325,7 @@
> > #define X86_FEATURE_HWP_ACT_WINDOW (14*32+ 9) /* HWP Activity Window */
> > #define X86_FEATURE_HWP_EPP (14*32+10) /* HWP Energy Perf. Preference */
> > #define X86_FEATURE_HWP_PKG_REQ (14*32+11) /* HWP Package Level Request */
> > +#define X86_FEATURE_INTEL_HFI (14*32+19) /* Hardware Feedback Interface */
>
> X86_FEATURE_HFI
>
> i.e., without the vendor name is perfectly fine.
Thank you very much for looking at the patch Boris! Sure, I can rename
the feature name.
BR,
Ricardo
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