* [Suggested-by:Shuah Khan Patch 0/1] iAdd explanation for
@ 2022-09-01 14:33 Meng Li
2022-09-01 14:33 ` [Suggested-by:Shuah Khan Patch 1/1] cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT Meng Li
0 siblings, 1 reply; 3+ messages in thread
From: Meng Li @ 2022-09-01 14:33 UTC (permalink / raw)
To: Shuah Khan, Huang Rui, linux-pm
Cc: Rafael J . Wysocki, Nathan Fontenot, Deepak Sharma, Alex Deucher,
Mario Limonciello, Jinzhou Su, Perry Yuan, Xiaojian Du,
Viresh Kumar, Borislav Petkov, linux-kernel, Meng Li
Hi all:
According to Shuah's review comments, add a new patches for expain
X86_AMD_PSTATE_UT.
amd-pstate-ut can be modprobed even without amd-pstate module.
When the comparison test is performed, it can load other module
like acpi-cpufreq to test cases, then compare the test results.
When only the test for amd-pstate is performed, it can tell the
users they loaded a wrong module like acpi-cpufreq.
Thanks,
Jasmine
Meng Li (1):
cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT
drivers/cpufreq/Kconfig.x86 | 6 ++++++
1 file changed, 6 insertions(+)
--
2.34.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Suggested-by:Shuah Khan Patch 1/1] cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT
2022-09-01 14:33 [Suggested-by:Shuah Khan Patch 0/1] iAdd explanation for Meng Li
@ 2022-09-01 14:33 ` Meng Li
2022-09-01 15:47 ` Shuah Khan
0 siblings, 1 reply; 3+ messages in thread
From: Meng Li @ 2022-09-01 14:33 UTC (permalink / raw)
To: Shuah Khan, Huang Rui, linux-pm
Cc: Rafael J . Wysocki, Nathan Fontenot, Deepak Sharma, Alex Deucher,
Mario Limonciello, Jinzhou Su, Perry Yuan, Xiaojian Du,
Viresh Kumar, Borislav Petkov, linux-kernel, Meng Li
This kernel module is used for testing. It's safe to say M here.
It can be modprobed even without amd-pstate module.
When the comparison test is performed, it can load other module
like acpi-cpufreq to test cases, then compare the test results.
When only the test for amd-pstate is performed, it can tell the
users they loaded a wrong module like acpi-cpufreq.
Signed-off-by: Meng Li <li.meng@amd.com>
---
drivers/cpufreq/Kconfig.x86 | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index fdd819069d72..fd1582716c58 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -58,6 +58,12 @@ config X86_AMD_PSTATE_UT
help
This kernel module is used for testing. It's safe to say M here.
+ It can be modprobed even without amd-pstate module.
+ When the comparison test is performed, it can load other module
+ like acpi-cpufreq to test cases, then compare the test results.
+ When only the test for amd-pstate is performed, it can tell the
+ users they loaded a wrong module like acpi-cpufreq.
+
config X86_ACPI_CPUFREQ
tristate "ACPI Processor P-States driver"
depends on ACPI_PROCESSOR
--
2.34.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [Suggested-by:Shuah Khan Patch 1/1] cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT
2022-09-01 14:33 ` [Suggested-by:Shuah Khan Patch 1/1] cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT Meng Li
@ 2022-09-01 15:47 ` Shuah Khan
0 siblings, 0 replies; 3+ messages in thread
From: Shuah Khan @ 2022-09-01 15:47 UTC (permalink / raw)
To: Meng Li, Huang Rui, linux-pm
Cc: Rafael J . Wysocki, Nathan Fontenot, Deepak Sharma, Alex Deucher,
Mario Limonciello, Jinzhou Su, Perry Yuan, Xiaojian Du,
Viresh Kumar, Borislav Petkov, linux-kernel, Shuah Khan
On 9/1/22 08:33, Meng Li wrote:
> This kernel module is used for testing. It's safe to say M here.
> It can be modprobed even without amd-pstate module.
> When the comparison test is performed, it can load other module
> like acpi-cpufreq to test cases, then compare the test results.
> When only the test for amd-pstate is performed, it can tell the
> users they loaded a wrong module like acpi-cpufreq.
>
> Signed-off-by: Meng Li <li.meng@amd.com>
> ---
> drivers/cpufreq/Kconfig.x86 | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
> index fdd819069d72..fd1582716c58 100644
> --- a/drivers/cpufreq/Kconfig.x86
> +++ b/drivers/cpufreq/Kconfig.x86
> @@ -58,6 +58,12 @@ config X86_AMD_PSTATE_UT
> help
> This kernel module is used for testing. It's safe to say M here.
>
> + It can be modprobed even without amd-pstate module.
It can also be built-in without X86_AMD_PSTATE enabled.
I would rephrase this as:
This config option can be enabled without X86_AMD_PSTATE enabled.
Also change the information below to sat enabled as opposed to module
as both these options can be built-in
> + When the comparison test is performed, it can load other module
> + like acpi-cpufreq to test cases, then compare the test results.
> + When only the test for amd-pstate is performed, it can tell the
> + users they loaded a wrong module like acpi-cpufreq.
> +
> config X86_ACPI_CPUFREQ
> tristate "ACPI Processor P-States driver"
> depends on ACPI_PROCESSOR
Thank you - In addition to this patch please make change to the test
script as well when it fails detecting that X86_AMD_PSTATE is disabled
to say what user has to do to run the test.
This run-time message will be helpful to users.
thanks,
-- Shuah
^ permalink raw reply [flat|nested] 3+ messages in thread
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2022-09-01 14:33 [Suggested-by:Shuah Khan Patch 0/1] iAdd explanation for Meng Li
2022-09-01 14:33 ` [Suggested-by:Shuah Khan Patch 1/1] cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT Meng Li
2022-09-01 15:47 ` Shuah Khan
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