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Date: Mon, 6 Jan 2014 18:24:26 +0530 From: Ramkumar Ramachandra <artagnon@...il.com> To: LKML <linux-kernel@...r.kernel.org> Cc: Dirk Brandewie <dirk.brandewie@...il.com>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Randy Dunlap <rdunlap@...radead.org>, Linux PM <linux-pm@...r.kernel.org> Subject: [PATCH v2] Documentation: add ABI entry for intel_pstate Add a Documentation/ABI entry for /sys/devices/system/cpu/intel_pstate/max_perf_pct, /sys/devices/system/cpu/intel_pstate/min_perf_pct, and /sys/devices/system/cpu/intel_pstate/no_turbo. Cc: Dirk Brandewie <dirk.brandewie@...il.com> Cc: Rafael J. Wysocki <rjw@...ysocki.net> Cc: Randy Dunlap <rdunlap@...radead.org> Cc: Linux PM <linux-pm@...r.kernel.org> Signed-off-by: Ramkumar Ramachandra <artagnon@...il.com> --- Documentation/ABI/testing/sysfs-devices-system-cpu | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 468e4d4..d5a0d33 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -200,3 +200,27 @@ Description: address and size of the percpu note. note of cpu#. crash_notes_size: size of the note of cpu#. + + +What: /sys/devices/system/cpu/intel_pstate/max_perf_pct + /sys/devices/system/cpu/intel_pstate/min_perf_pct + /sys/devices/system/cpu/intel_pstate/no_turbo +Date: February 2013 +Contact: linux-pm@...r.kernel.org +Description: Parameters for the Intel P-state driver + + Logic for selecting the current P-state in Intel + Sandybridge+ processors. The three knobs control + limits for the P-state that will be requested by the + driver. + + max_perf_pct: limits the maximum P state that will be requested by + the driver stated as a percentage of the available performance. + + min_perf_pct: limits the minimum P state that will be requested by + the driver stated as a percentage of the available performance. + + no_turbo: limits the driver to selecting P states below the turbo + frequency range. + + More details can be found in Documentation/cpu-freq/intel-pstate.txt -- 1.8.5.2.227.g53f3478 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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