linux-kernel - Re: [PATCH] perf/x86: Fix LLC-* and node-* events on Intel SandyBridge

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Message-ID: <1342802895.2583.16.camel@twins>
Date:	Fri, 20 Jul 2012 18:48:15 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	"Yan, Zheng" <zheng.z.yan@...el.com>
Cc:	mingo@...e.hu, andi@...stfloor.org, linux-kernel@...r.kernel.org,
	Stephane Eranian <eranian@...il.com>
Subject: Re: [PATCH] perf/x86: Fix LLC-* and node-* events on Intel
 SandyBridge

On Tue, 2012-07-17 at 17:27 +0800, Yan, Zheng wrote:
> From: "Yan, Zheng" <zheng.z.yan@...el.com>
> 
> LLC-* and node-* events require using the OFFCORE_RESPONSE events
> on SandyBridge, but the hw_cache_extra_regs is left uninitialized.
> This patch adds the missing extra register configure table for
> SandyBridge. 

Last time I tried this I couldn't get sane numbers out of it..

Does these encodings work, if so, do explain them.

Also:

> +#define SNB_REMOTE             (0xffULL << 23)

I guess I can take this as an 'official' publication of this fact?

(I knew those bits meant this, but I never got a response if I could
publish that information.)
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