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Mark Langsdorf
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Ingo Molnar
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Apr 10, 2009
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trunk/Documentation/ABI/testing/sysfs-devices-cache_disable
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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. | ||
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||
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 |