projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 2fad2d9b ML |
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 |