From: Andreas Herrmann <andreas.herrmann3@amd.com>
To: Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Mark Langsdorf <mark.langsdorf@amd.com>
Subject: [PATCH 8/8] x86/docs: add description for cache_disable sysfs interface
Date: Thu, 9 Apr 2009 15:31:53 +0200 [thread overview]
Message-ID: <20090409133153.GL31527@alberich.amd.com> (raw)
In-Reply-To: <20090409125659.GD31527@alberich.amd.com>
From: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
---
.../ABI/testing/sysfs-devices-cache_disable | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-devices-cache_disable
Oops, shouldn't Date and KernelVersion be adapted to reflect 2.6.30
and say June 2009.
I don't know.
Regards,
Andreas
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
--
1.6.2
next prev parent reply other threads:[~2009-04-09 13:32 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-09 12:56 [PATCH 0/8] x86: cacheinfo: cache_disable fixes/cleanup Andreas Herrmann
2009-04-09 12:59 ` [PATCH 1/8] Revert "x86, cpu: intel_cacheinfo.c: use cpumask_first(to_cpumask())" Andreas Herrmann
2009-04-09 13:02 ` [PATCH 2/8] Revert "x86, cpu: conform L3 Cache Index Disable to Linux standards" Andreas Herrmann
2009-04-09 13:05 ` [PATCH 3/8] x86: cacheinfo: use L3 cache index disable feature only for CPUs that support it Andreas Herrmann
2009-04-10 12:36 ` [tip:x86/cpu] " Andreas Herrmann
2009-04-09 13:07 ` [PATCH 4/8] x86: cacheinfo: correct return value when cache_disable feature is not active Andreas Herrmann
2009-04-10 12:36 ` [tip:x86/cpu] " Andreas Herrmann
2009-04-09 13:16 ` [PATCH 5/8] x86: cacheinfo: use cached K8 NB_MISC devices instead of scanning for it Andreas Herrmann
2009-04-10 12:36 ` [tip:x86/cpu] " Andreas Herrmann
2009-04-09 13:18 ` [PATCH 6/8] x86: cacheinfo: replace sysfs interface for cache_disable feature Andreas Herrmann
2009-04-10 12:37 ` [tip:x86/cpu] " Mark Langsdorf
2009-04-13 4:52 ` Jaswinder Singh Rajput
2009-04-13 4:56 ` Jaswinder Singh Rajput
2009-04-14 11:58 ` Ingo Molnar
2009-04-14 12:48 ` Jaswinder Singh Rajput
2009-04-14 13:28 ` Ingo Molnar
2009-04-09 13:24 ` [PATCH 7/8] x86: cacheinfo: disable L3 ECC scrubbing when L3 cache index is disabled Andreas Herrmann
2009-04-10 12:37 ` [tip:x86/cpu] " Mark Langsdorf
2009-04-09 13:31 ` Andreas Herrmann [this message]
2009-04-10 12:37 ` [tip:x86/cpu] x86/docs: add description for cache_disable sysfs interface Mark Langsdorf
2009-04-10 12:28 ` [PATCH 0/8] x86: cacheinfo: cache_disable fixes/cleanup Ingo Molnar
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