[AMD Official Use Only - General]
-----Original Message----- From: Meng, Li (Jassmine) Li.Meng@amd.com Sent: Wednesday, November 29, 2023 2:55 PM To: Rafael J . Wysocki rafael.j.wysocki@intel.com; Huang, Ray Ray.Huang@amd.com Cc: linux-pm@vger.kernel.org; linux-kernel@vger.kernel.org; x86@kernel.org; linux-acpi@vger.kernel.org; Shuah Khan skhan@linuxfoundation.org; linux- kselftest@vger.kernel.org; Fontenot, Nathan Nathan.Fontenot@amd.com; Sharma, Deepak Deepak.Sharma@amd.com; Deucher, Alexander Alexander.Deucher@amd.com; Limonciello, Mario Mario.Limonciello@amd.com; Huang, Shimmer Shimmer.Huang@amd.com; Yuan, Perry Perry.Yuan@amd.com; Du, Xiaojian Xiaojian.Du@amd.com; Viresh Kumar viresh.kumar@linaro.org; Borislav Petkov bp@alien8.de; Oleksandr Natalenko oleksandr@natalenko.name; Meng, Li (Jassmine) Li.Meng@amd.com; Karny, Wyes Wyes.Karny@amd.com Subject: [PATCH V11 7/7] Documentation: introduce amd-pstate preferrd core mode kernel command line options
amd-pstate driver support enable/disable preferred core. Default enabled on platforms supporting amd-pstate preferred core. Disable amd-pstate preferred core with "amd_prefcore=disable" added to the kernel command line.
Signed-off-by: Meng Li li.meng@amd.com Reviewed-by: Mario Limonciello mario.limonciello@amd.com Reviewed-by: Wyes Karny wyes.karny@amd.com Reviewed-by: Huang Rui ray.huang@amd.com Tested-by: Oleksandr Natalenko oleksandr@natalenko.name
Documentation/admin-guide/kernel-parameters.txt | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 758bb25ea3e6..008bdfd63c22 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -363,6 +363,11 @@ selects a performance level in this range and appropriate to the current workload.
amd_prefcore=[X86]disableDisable amd-pstate preferred core.amijoy.map= [HW,JOY] Amiga joystick support Map of devices attached to JOY0DAT and JOY1DAT Format: <a>,<b>-- 2.34.1
Reviewed-by: Perry Yuan < perry.yuan@amd.com>