1*468727abSAlex ChiangWhat: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X 2*468727abSAlex ChiangDate: August 2008 3*468727abSAlex ChiangKernelVersion: 2.6.27 4*468727abSAlex ChiangContact: mark.langsdorf@amd.com 5*468727abSAlex ChiangDescription: These files exist in every cpu's cache index directories. 6*468727abSAlex Chiang There are currently 2 cache_disable_# files in each 7*468727abSAlex Chiang directory. Reading from these files on a supported 8*468727abSAlex Chiang processor will return that cache disable index value 9*468727abSAlex Chiang for that processor and node. Writing to one of these 10*468727abSAlex Chiang files will cause the specificed cache index to be disabled. 11*468727abSAlex Chiang 12*468727abSAlex Chiang Currently, only AMD Family 10h Processors support cache index 13*468727abSAlex Chiang disable, and only for their L3 caches. See the BIOS and 14*468727abSAlex Chiang Kernel Developer's Guide at 15*468727abSAlex Chiang http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31116-Public-GH-BKDG_3.20_2-4-09.pdf 16*468727abSAlex Chiang for formatting information and other details on the 17*468727abSAlex Chiang cache index disable. 18*468727abSAlex ChiangUsers: joachim.deguara@amd.com 19