| Mark Langsdorf | 2fad2d9 | 2009-04-09 15:31:53 +0200 | [diff] [blame] | 1 | What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X |
| 2 | Date: August 2008 |
| 3 | KernelVersion: 2.6.27 |
| 4 | Contact: mark.langsdorf@amd.com |
| 5 | Description: These files exist in every cpu's cache index directories. |
| 6 | There are currently 2 cache_disable_# files in each |
| 7 | directory. Reading from these files on a supported |
| 8 | processor will return that cache disable index value |
| 9 | for that processor and node. Writing to one of these |
| 10 | files will cause the specificed cache index to be disabled. |
| 11 | |
| 12 | Currently, only AMD Family 10h Processors support cache index |
| 13 | disable, and only for their L3 caches. See the BIOS and |
| 14 | Kernel Developer's Guide at |
| 15 | 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 | for formatting information and other details on the |
| 17 | cache index disable. |
| 18 | Users: joachim.deguara@amd.com |