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Date: Mon, 27 May 2024 16:29:38 +0300 From: Tero Kristo <tero.kristo@...ux.intel.com> To: srinivas.pandruvada@...ux.intel.com, ilpo.jarvinen@...ux.intel.com, hdegoede@...hat.com Cc: linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org, Andy Shevchenko <andriy.shevchenko@...ux.intel.com> Subject: [PATCH 6/6] 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@...ux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com> Signed-off-by: Tero Kristo <tero.kristo@...ux.intel.com> --- Documentation/ABI/testing/debugfs-tpmi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/ABI/testing/debugfs-tpmi b/Documentation/ABI/testing/debugfs-tpmi index 597f0475fe6e..4daa9ecd7918 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@...ux.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. -- 2.43.1
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