linux-kernel - Re: [PATCH 1/3] perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN

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Message-ID: <20131102043438.GA11257@pd.tnic>
Date:	Sat, 2 Nov 2013 05:34:38 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Borislav Petkov <bp@...e.de>, suravee.suthikulpanit@....com,
	mingo@...nel.org, mingo@...hat.com, jacob.w.shin@...il.com,
	oleg@...hat.com, a.p.zijlstra@...llo.nl, acme@...stprotocols.net,
	hpa@...or.com, linux-kernel@...r.kernel.org,
	sherry.hurwitz@....com, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 1/3] perf/x86/amd: AMD support for bp_len >
 HW_BREAKPOINT_LEN_8

On Thu, Oct 31, 2013 at 12:23:30PM +0100, Frederic Weisbecker wrote:
> Ok we can keep that naming then, at least on the feature symbol. But
> add a comment on it.

Great, in the latest F16h BKDG the CPUID bit is called
"DataBreakpointExtension". So BPEXT could mean anything :)

So the comment is with the definition of the bit:

+#define X86_FEATURE_BPEXT      (6*32+26) /* data breakpoint extension */

Oh well...

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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