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| author |   Tero Kristo <tero.kristo@linux.intel.com> | 2024-05-27 16:29:38 +0300 |
|---|---|---|
| committer |   Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2024-05-31 16:32:20 +0300 |
| commit | 0da7a954480cc99978e3570c991e3779e56fc736 (patch) | |
| tree | 147bde0e66b899a29055581a3071a20f8c7bbaf9 | |
| parent | platform/x86/intel/tpmi/plr: Add support for the plr mailbox (diff) | |
| download | wireguard-linux-0da7a954480cc99978e3570c991e3779e56fc736.tar.xz wireguard-linux-0da7a954480cc99978e3570c991e3779e56fc736.zip | |
doc: TPMI: Add entry for Performance Limit Reasons
Describe the new 'plr' (Performance Limit Reasons) directory contents under
the main TPMI debugfs folder.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Link: https://lore.kernel.org/r/20240527133400.483634-7-tero.kristo@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
| -rw-r--r-- | Documentation/ABI/testing/debugfs-tpmi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-tpmi b/Documentation/ABI/testing/debugfs-tpmi index 597f0475fe6e..c493a1403d2f 100644 --- a/Documentation/ABI/testing/debugfs-tpmi +++ b/Documentation/ABI/testing/debugfs-tpmi @@ -29,3 +29,12 @@ Example: echo 0,0x20,0xff > mem_write echo 1,64,64 > mem_write Users: Debugging, any user space test suite + +What: /sys/kernel/debug/tpmi-<n>/plr/domain<n>/status +Date: Aug 2024 +KernelVersion: 6.11 +Contact: Tero Kristo <tero.kristo@linux.intel.com> +Description: +Shows the currently active Performance Limit Reasons for die level and the +individual CPUs under the die. The contents of this file are sticky, and +clearing all the statuses can be done by writing "0\n" to this file. |