* [PATCH] cpufreq/amd-pstate: Remove obsolete amd_dynamic_epp documentation
@ 2026-09-05 1:07 Karl Mehltretter
2026-09-05 2:43 ` Randy Dunlap
2026-09-07 3:58 ` K Prateek Nayak
0 siblings, 2 replies; 4+ messages in thread
From: Karl Mehltretter @ 2026-09-05 1:07 UTC (permalink / raw)
To: Jonathan Corbet
Cc: Karl Mehltretter, Shuah Khan, Randy Dunlap, Huang Rui,
Mario Limonciello, Perry Yuan, K Prateek Nayak,
Mario Limonciello (AMD),
linux-doc, linux-kernel, linux-pm
The amd_dynamic_epp command-line parameter was removed. Dynamic EPP
is now selected through the per-policy energy_performance_preference
attribute, which is already documented.
Fixes: 32692fcf61ed ("cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs")
Assisted-by: LLM
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
---
Documentation/admin-guide/kernel-parameters.txt | 7 -------
Documentation/admin-guide/pm/amd-pstate.rst | 6 ------
2 files changed, 13 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 4a12805a50ba5..1fa37bce5bb3a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -499,13 +499,6 @@ Kernel parameters
disable
Disable amd-pstate preferred core.
- amd_dynamic_epp=
- [X86]
- disable
- Disable amd-pstate dynamic EPP.
- enable
- Enable amd-pstate dynamic EPP.
-
amijoy.map= [HW,JOY] Amiga joystick support
Map of devices attached to JOY0DAT and JOY1DAT
Format: <a>,<b>
diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst
index 6fd72ba52df20..4c5d3d8acf645 100644
--- a/Documentation/admin-guide/pm/amd-pstate.rst
+++ b/Documentation/admin-guide/pm/amd-pstate.rst
@@ -481,12 +481,6 @@ For systems that support ``amd-pstate`` preferred core, the core rankings will
always be advertised by the platform. But OS can choose to ignore that via the
kernel parameter ``amd_prefcore=disable``.
-``amd_dynamic_epp``
-
-When AMD pstate is in auto mode, dynamic EPP will control whether the kernel
-autonomously changes the EPP mode. The default is disabled. It can be enabled
-with the kernel parameter ``amd_dynamic_epp=enable``.
-
User Space Interface in ``sysfs`` - General
===========================================
--
2.53.0
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] cpufreq/amd-pstate: Remove obsolete amd_dynamic_epp documentation
2026-09-05 1:07 [PATCH] cpufreq/amd-pstate: Remove obsolete amd_dynamic_epp documentation Karl Mehltretter
@ 2026-09-05 2:43 ` Randy Dunlap
2026-09-07 3:58 ` K Prateek Nayak
1 sibling, 0 replies; 4+ messages in thread
From: Randy Dunlap @ 2026-09-05 2:43 UTC (permalink / raw)
To: Karl Mehltretter, Jonathan Corbet
Cc: Shuah Khan, Huang Rui, Mario Limonciello, Perry Yuan,
K Prateek Nayak, Mario Limonciello (AMD),
linux-doc, linux-kernel, linux-pm
On 9/4/26 6:07 PM, Karl Mehltretter wrote:
> The amd_dynamic_epp command-line parameter was removed. Dynamic EPP
> is now selected through the per-policy energy_performance_preference
> attribute, which is already documented.
>
> Fixes: 32692fcf61ed ("cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs")
> Assisted-by: LLM
> Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Thanks.
> ---
> Documentation/admin-guide/kernel-parameters.txt | 7 -------
> Documentation/admin-guide/pm/amd-pstate.rst | 6 ------
> 2 files changed, 13 deletions(-)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 4a12805a50ba5..1fa37bce5bb3a 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -499,13 +499,6 @@ Kernel parameters
> disable
> Disable amd-pstate preferred core.
>
> - amd_dynamic_epp=
> - [X86]
> - disable
> - Disable amd-pstate dynamic EPP.
> - enable
> - Enable amd-pstate dynamic EPP.
> -
> amijoy.map= [HW,JOY] Amiga joystick support
> Map of devices attached to JOY0DAT and JOY1DAT
> Format: <a>,<b>
> diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst
> index 6fd72ba52df20..4c5d3d8acf645 100644
> --- a/Documentation/admin-guide/pm/amd-pstate.rst
> +++ b/Documentation/admin-guide/pm/amd-pstate.rst
> @@ -481,12 +481,6 @@ For systems that support ``amd-pstate`` preferred core, the core rankings will
> always be advertised by the platform. But OS can choose to ignore that via the
> kernel parameter ``amd_prefcore=disable``.
>
> -``amd_dynamic_epp``
> -
> -When AMD pstate is in auto mode, dynamic EPP will control whether the kernel
> -autonomously changes the EPP mode. The default is disabled. It can be enabled
> -with the kernel parameter ``amd_dynamic_epp=enable``.
> -
> User Space Interface in ``sysfs`` - General
> ===========================================
>
--
~Randy
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] cpufreq/amd-pstate: Remove obsolete amd_dynamic_epp documentation
2026-09-05 1:07 [PATCH] cpufreq/amd-pstate: Remove obsolete amd_dynamic_epp documentation Karl Mehltretter
2026-09-05 2:43 ` Randy Dunlap
@ 2026-09-07 3:58 ` K Prateek Nayak
2026-09-10 21:01 ` Mario Limonciello
1 sibling, 1 reply; 4+ messages in thread
From: K Prateek Nayak @ 2026-09-07 3:58 UTC (permalink / raw)
To: Karl Mehltretter, Jonathan Corbet
Cc: Shuah Khan, Randy Dunlap, Huang Rui, Mario Limonciello,
Perry Yuan, Mario Limonciello (AMD),
linux-doc, linux-kernel, linux-pm
Hello Karl,
On 9/5/2026 6:37 AM, Karl Mehltretter wrote:
> The amd_dynamic_epp command-line parameter was removed. Dynamic EPP
> is now selected through the per-policy energy_performance_preference
> attribute, which is already documented.
>
> Fixes: 32692fcf61ed ("cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs")
> Assisted-by: LLM
> Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Thank you for catching this. Feel free to include:
Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com>
> ---
> Documentation/admin-guide/kernel-parameters.txt | 7 -------
> Documentation/admin-guide/pm/amd-pstate.rst | 6 ------
> 2 files changed, 13 deletions(-)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 4a12805a50ba5..1fa37bce5bb3a 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -499,13 +499,6 @@ Kernel parameters
> disable
> Disable amd-pstate preferred core.
>
> - amd_dynamic_epp=
> - [X86]
> - disable
> - Disable amd-pstate dynamic EPP.
> - enable
> - Enable amd-pstate dynamic EPP.
> -
> amijoy.map= [HW,JOY] Amiga joystick support
> Map of devices attached to JOY0DAT and JOY1DAT
> Format: <a>,<b>
> diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst
> index 6fd72ba52df20..4c5d3d8acf645 100644
> --- a/Documentation/admin-guide/pm/amd-pstate.rst
> +++ b/Documentation/admin-guide/pm/amd-pstate.rst
> @@ -481,12 +481,6 @@ For systems that support ``amd-pstate`` preferred core, the core rankings will
> always be advertised by the platform. But OS can choose to ignore that via the
> kernel parameter ``amd_prefcore=disable``.
>
> -``amd_dynamic_epp``
> -
> -When AMD pstate is in auto mode, dynamic EPP will control whether the kernel
> -autonomously changes the EPP mode. The default is disabled. It can be enabled
> -with the kernel parameter ``amd_dynamic_epp=enable``.
> -
> User Space Interface in ``sysfs`` - General
> ===========================================
>
--
Thanks and Regards,
Prateek
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] cpufreq/amd-pstate: Remove obsolete amd_dynamic_epp documentation
2026-09-07 3:58 ` K Prateek Nayak
@ 2026-09-10 21:01 ` Mario Limonciello
0 siblings, 0 replies; 4+ messages in thread
From: Mario Limonciello @ 2026-09-10 21:01 UTC (permalink / raw)
To: K Prateek Nayak, Karl Mehltretter, Jonathan Corbet
Cc: Shuah Khan, Randy Dunlap, Huang Rui, Perry Yuan,
Mario Limonciello (AMD),
linux-doc, linux-kernel, linux-pm
On 9/6/26 22:58, K Prateek Nayak wrote:
> Hello Karl,
>
> On 9/5/2026 6:37 AM, Karl Mehltretter wrote:
>> The amd_dynamic_epp command-line parameter was removed. Dynamic EPP
>> is now selected through the per-policy energy_performance_preference
>> attribute, which is already documented.
>>
>> Fixes: 32692fcf61ed ("cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs")
>> Assisted-by: LLM
>> Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
>
> Thank you for catching this. Feel free to include:
>
> Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com>
>
Thanks, applied to my amd-pstate bleeding-edge branch.
>> ---
>> Documentation/admin-guide/kernel-parameters.txt | 7 -------
>> Documentation/admin-guide/pm/amd-pstate.rst | 6 ------
>> 2 files changed, 13 deletions(-)
>>
>> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
>> index 4a12805a50ba5..1fa37bce5bb3a 100644
>> --- a/Documentation/admin-guide/kernel-parameters.txt
>> +++ b/Documentation/admin-guide/kernel-parameters.txt
>> @@ -499,13 +499,6 @@ Kernel parameters
>> disable
>> Disable amd-pstate preferred core.
>>
>> - amd_dynamic_epp=
>> - [X86]
>> - disable
>> - Disable amd-pstate dynamic EPP.
>> - enable
>> - Enable amd-pstate dynamic EPP.
>> -
>> amijoy.map= [HW,JOY] Amiga joystick support
>> Map of devices attached to JOY0DAT and JOY1DAT
>> Format: <a>,<b>
>> diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst
>> index 6fd72ba52df20..4c5d3d8acf645 100644
>> --- a/Documentation/admin-guide/pm/amd-pstate.rst
>> +++ b/Documentation/admin-guide/pm/amd-pstate.rst
>> @@ -481,12 +481,6 @@ For systems that support ``amd-pstate`` preferred core, the core rankings will
>> always be advertised by the platform. But OS can choose to ignore that via the
>> kernel parameter ``amd_prefcore=disable``.
>>
>> -``amd_dynamic_epp``
>> -
>> -When AMD pstate is in auto mode, dynamic EPP will control whether the kernel
>> -autonomously changes the EPP mode. The default is disabled. It can be enabled
>> -with the kernel parameter ``amd_dynamic_epp=enable``.
>> -
>> User Space Interface in ``sysfs`` - General
>> ===========================================
>>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-09-10 21:02 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2026-09-05 1:07 [PATCH] cpufreq/amd-pstate: Remove obsolete amd_dynamic_epp documentation Karl Mehltretter
2026-09-05 2:43 ` Randy Dunlap
2026-09-07 3:58 ` K Prateek Nayak
2026-09-10 21:01 ` Mario Limonciello
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