Commit-ID: 2fad2d9bb8310889f3261035b594b4e068b6eb8b Gitweb: http://git.kernel.org/tip/2fad2d9bb8310889f3261035b594b4e068b6eb8b Author: Mark Langsdorf <mark.langsdorf@xxxxxxx> AuthorDate: Thu, 9 Apr 2009 15:31:53 +0200 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Fri, 10 Apr 2009 14:22:40 +0200 x86/docs: add description for cache_disable sysfs interface Signed-off-by: Mark Langsdorf <mark.langsdorf@xxxxxxx> Signed-off-by: Andreas Herrmann <andreas.herrmann3@xxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> LKML-Reference: <20090409133153.GL31527@xxxxxxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- .../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@xxxxxxx +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@xxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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