From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754033Ab0K2NNE (ORCPT ); Mon, 29 Nov 2010 08:13:04 -0500 Received: from one.firstfloor.org ([213.235.205.2]:34850 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753599Ab0K2NNB (ORCPT ); Mon, 29 Nov 2010 08:13:01 -0500 From: Andi Kleen To: peterz@infradead.org Cc: mingo@elte.hu, linux-kernel@vger.kernel.org, Andi Kleen Subject: [PATCH 1/3] perf: Document enhanced event encoding for OFFCORE_MSR Date: Mon, 29 Nov 2010 14:12:52 +0100 Message-Id: <1291036374-24710-2-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1291036374-24710-1-git-send-email-andi@firstfloor.org> References: <1291036374-24710-1-git-send-email-andi@firstfloor.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andi Kleen Signed-off-by: Andi Kleen --- tools/perf/Documentation/perf-list.txt | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index 399751b..22678d2 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -58,6 +58,13 @@ raw encoding of 0x1A8 can be used: perf stat -e r1a8 -a sleep 1 perf record -e r1a8 ... +Some special events on x86 encode additional data in the normally unused +[32;63] bits of the raw value. This is particularly used for +the OFFCORE_RESPONSE events on Intel Core i7. The 16bit +mask in the OFFCORE_RESPONSE register is put into bits [32;48]. +For example the OFFCORE_RESPONSE_0.ANY_DATA.ANY_CACHE_DRAM event +is encoded as r00007f11004301b7. + You should refer to the processor specific documentation for getting these details. Some of them are referenced in the SEE ALSO section below. -- 1.7.1