* [PATCH] Documentation: add ABI entry for intel_pstate
@ 2014-01-06 8:31 Ramkumar Ramachandra
2014-01-06 11:23 ` Rafael J. Wysocki
2014-01-06 12:54 ` [PATCH v2] " Ramkumar Ramachandra
0 siblings, 2 replies; 4+ messages in thread
From: Ramkumar Ramachandra @ 2014-01-06 8:31 UTC (permalink / raw)
To: LKML; +Cc: Dirk Brandewie, Rafael J. Wysocki, Randy Dunlap, Linux PM
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@gmail.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Linux PM <linux-pm@vger.kernel.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
Documentation/ABI/testing/sysfs-devices-system-cpu | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 468e4d4..7080718 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -200,3 +200,18 @@ 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@vger.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.
+
+ More details can be found in Documentation/cpu-freq/intel-pstate.txt
--
1.8.5.2.227.g53f3478
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] Documentation: add ABI entry for intel_pstate
2014-01-06 8:31 [PATCH] Documentation: add ABI entry for intel_pstate Ramkumar Ramachandra
@ 2014-01-06 11:23 ` Rafael J. Wysocki
2014-01-06 12:54 ` [PATCH v2] " Ramkumar Ramachandra
1 sibling, 0 replies; 4+ messages in thread
From: Rafael J. Wysocki @ 2014-01-06 11:23 UTC (permalink / raw)
To: Ramkumar Ramachandra; +Cc: LKML, Dirk Brandewie, Randy Dunlap, Linux PM
On Monday, January 06, 2014 02:01:17 PM Ramkumar Ramachandra wrote:
> 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@gmail.com>
> Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: Randy Dunlap <rdunlap@infradead.org>
> Cc: Linux PM <linux-pm@vger.kernel.org>
> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
> ---
> Documentation/ABI/testing/sysfs-devices-system-cpu | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
> index 468e4d4..7080718 100644
> --- a/Documentation/ABI/testing/sysfs-devices-system-cpu
> +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
> @@ -200,3 +200,18 @@ 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
Well, can you please describe each of them separately? Like what each of them
actually does?
> +Date: February 2013
> +Contact: linux-pm@vger.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.
> +
> + More details can be found in Documentation/cpu-freq/intel-pstate.txt
No, that's not enough.
Thanks!
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v2] Documentation: add ABI entry for intel_pstate
2014-01-06 8:31 [PATCH] Documentation: add ABI entry for intel_pstate Ramkumar Ramachandra
2014-01-06 11:23 ` Rafael J. Wysocki
@ 2014-01-06 12:54 ` Ramkumar Ramachandra
2014-01-06 14:33 ` Rafael J. Wysocki
1 sibling, 1 reply; 4+ messages in thread
From: Ramkumar Ramachandra @ 2014-01-06 12:54 UTC (permalink / raw)
To: LKML; +Cc: Dirk Brandewie, Rafael J. Wysocki, Randy Dunlap, Linux PM
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@gmail.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Linux PM <linux-pm@vger.kernel.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.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@vger.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
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v2] Documentation: add ABI entry for intel_pstate
2014-01-06 12:54 ` [PATCH v2] " Ramkumar Ramachandra
@ 2014-01-06 14:33 ` Rafael J. Wysocki
0 siblings, 0 replies; 4+ messages in thread
From: Rafael J. Wysocki @ 2014-01-06 14:33 UTC (permalink / raw)
To: Ramkumar Ramachandra; +Cc: LKML, Dirk Brandewie, Randy Dunlap, Linux PM
On Monday, January 06, 2014 06:24:26 PM Ramkumar Ramachandra wrote:
> 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@gmail.com>
> Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: Randy Dunlap <rdunlap@infradead.org>
> Cc: Linux PM <linux-pm@vger.kernel.org>
> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
OK, queued up for 3.14.
Thanks!
> ---
> 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@vger.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
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2014-01-06 8:31 [PATCH] Documentation: add ABI entry for intel_pstate Ramkumar Ramachandra
2014-01-06 11:23 ` Rafael J. Wysocki
2014-01-06 12:54 ` [PATCH v2] " Ramkumar Ramachandra
2014-01-06 14:33 ` Rafael J. Wysocki
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