Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938399AbZDJMlh (ORCPT ); Fri, 10 Apr 2009 08:41:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S936050AbZDJMj2 (ORCPT ); Fri, 10 Apr 2009 08:39:28 -0400 Received: from hera.kernel.org ([140.211.167.34]:45888 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S938263AbZDJMj1 (ORCPT ); Fri, 10 Apr 2009 08:39:27 -0400 Date: Fri, 10 Apr 2009 12:37:35 GMT From: Mark Langsdorf To: linux-tip-commits@vger.kernel.org Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, akpm@linux-foundation.org, andreas.herrmann3@amd.com, mark.langsdorf@amd.com, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, andreas.herrmann3@amd.com, akpm@linux-foundation.org, mark.langsdorf@amd.com, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <20090409133153.GL31527@alberich.amd.com> References: <20090409133153.GL31527@alberich.amd.com> Subject: [tip:x86/cpu] x86/docs: add description for cache_disable sysfs interface Message-ID: Git-Commit-ID: 2fad2d9bb8310889f3261035b594b4e068b6eb8b X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Fri, 10 Apr 2009 12:37:37 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2166 Lines: 49 Commit-ID: 2fad2d9bb8310889f3261035b594b4e068b6eb8b Gitweb: http://git.kernel.org/tip/2fad2d9bb8310889f3261035b594b4e068b6eb8b Author: Mark Langsdorf AuthorDate: Thu, 9 Apr 2009 15:31:53 +0200 Committer: Ingo Molnar CommitDate: Fri, 10 Apr 2009 14:22:40 +0200 x86/docs: add description for cache_disable sysfs interface Signed-off-by: Mark Langsdorf Signed-off-by: Andreas Herrmann Cc: Andrew Morton LKML-Reference: <20090409133153.GL31527@alberich.amd.com> Signed-off-by: Ingo Molnar --- .../ABI/testing/sysfs-devices-cache_disable | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-devices-cache_disable b/Documentation/ABI/testing/sysfs-devices-cache_disable new file mode 100644 index 0000000..175bb4f --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-cache_disable @@ -0,0 +1,18 @@ +What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X +Date: August 2008 +KernelVersion: 2.6.27 +Contact: mark.langsdorf@amd.com +Description: These files exist in every cpu's cache index directories. + There are currently 2 cache_disable_# files in each + directory. Reading from these files on a supported + processor will return that cache disable index value + for that processor and node. Writing to one of these + files will cause the specificed cache index to be disabled. + + Currently, only AMD Family 10h Processors support cache index + disable, and only for their L3 caches. See the BIOS and + Kernel Developer's Guide at + http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31116-Public-GH-BKDG_3.20_2-4-09.pdf + for formatting information and other details on the + cache index disable. +Users: joachim.deguara@amd.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/