From: tip-bot for Borislav Petkov <borislav.petkov@amd.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com,
gregkh@suse.de, rdunlap@xenotime.net, tglx@linutronix.de,
hpa@linux.intel.com, borislav.petkov@amd.com
Subject: [tip:x86/cpu] Documentation, ABI: Update L3 cache index disable text
Date: Mon, 16 May 2011 21:22:58 GMT [thread overview]
Message-ID: <tip-eecaaba5b2e4ae762b4726fae2e3b22630e137ec@git.kernel.org> (raw)
In-Reply-To: <1305553188-21061-4-git-send-email-bp@amd64.org>
Commit-ID: eecaaba5b2e4ae762b4726fae2e3b22630e137ec
Gitweb: http://git.kernel.org/tip/eecaaba5b2e4ae762b4726fae2e3b22630e137ec
Author: Borislav Petkov <borislav.petkov@amd.com>
AuthorDate: Mon, 16 May 2011 15:39:48 +0200
Committer: H. Peter Anvin <hpa@linux.intel.com>
CommitDate: Mon, 16 May 2011 11:24:30 -0700
Documentation, ABI: Update L3 cache index disable text
Change contact person to AMD kernel mailing list, update text and
external references, drop "Users:" tag.
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/1305553188-21061-4-git-send-email-bp@amd64.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
Documentation/ABI/testing/sysfs-devices-system-cpu | 34 ++++++++++----------
1 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 7564e88..e7be75b 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -183,21 +183,21 @@ Description: Discover and change clock speed of CPUs
to learn how to control the knobs.
-What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X
-Date: August 2008
+What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1}
+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://support.amd.com/us/Embedded_TechDocs/31116-Public-GH-BKDG_3-28_5-28-09.pdf
- for formatting information and other details on the
- cache index disable.
-Users: joachim.deguara@amd.com
+Contact: discuss@x86-64.org
+Description: Disable L3 cache indices
+
+ These files exist in every CPU's cache/index3 directory. Each
+ cache_disable_{0,1} file corresponds to one disable slot which
+ can be used to disable a cache index. Reading from these files
+ on a processor with this functionality will return the currently
+ disabled index for that node. There is one L3 structure per
+ node, or per internal node on MCM machines. Writing a valid
+ index to one of these files will cause the specificed cache
+ index to be disabled.
+
+ All AMD processors with L3 caches provide this functionality.
+ For details, see BKDGs at
+ http://developer.amd.com/documentation/guides/Pages/default.aspx
prev parent reply other threads:[~2011-05-16 21:23 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-16 13:39 [PATCH 0/3] x86, AMD, cacheinfo: L3 CID fixes Borislav Petkov
2011-05-16 13:39 ` [PATCH 1/3] x86, AMD, cacheinfo: Fix fallout caused by max3 conversion Borislav Petkov
2011-05-16 17:31 ` Greg KH
2011-05-16 17:38 ` Borislav Petkov
2011-05-16 17:42 ` H. Peter Anvin
2011-05-16 17:47 ` Borislav Petkov
2011-05-16 18:00 ` H. Peter Anvin
2011-05-16 18:19 ` Borislav Petkov
2011-05-16 18:45 ` Hagen Paul Pfeifer
2011-05-16 21:22 ` [tip:x86/cpu] " tip-bot for Borislav Petkov
2011-05-16 13:39 ` [PATCH 2/3] x86, AMD, cacheinfo: Fix L3 cache index disable checks Borislav Petkov
2011-05-16 21:22 ` [tip:x86/cpu] " tip-bot for Frank Arnold
2011-05-16 13:39 ` [PATCH 3/3] Documentation, ABI: Update L3 cache index disable text Borislav Petkov
2011-05-16 17:30 ` Greg KH
2011-05-16 21:22 ` tip-bot for Borislav Petkov [this message]
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