Messages in this thread Patch in this message |  | | From | Perry Yuan <> | Subject | [PATCH 2/7] cpufreq: amd_pstate: add module parameter to load amd pstate EPP driver | Date | Sat, 10 Sep 2022 00:45:29 +0800 |
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The amd_pstate mode parameter will allow user to select which amd pstate working mode as booting mode, amd_pstate instance or amd_pstate_epp instance.
1) amd_pstate instance is depending on the target operation mode. 2) amd_pstate_epp instance is depending on the set_policy operation mode.It is also called active mode that AMD SMU has EPP algorithm to control the CPU runtime frequency according to the EPP set value and workload.
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com> --- drivers/cpufreq/amd-pstate.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index a2463f785322..451295284a26 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -58,6 +58,12 @@ module_param(shared_mem, bool, 0444); MODULE_PARM_DESC(shared_mem, "enable amd-pstate on processors with shared memory solution (false = disabled (default), true = enabled)"); +static bool epp_enabled = true; +module_param(epp_enabled, bool, 0444); +MODULE_PARM_DESC(epp_enabled, + "load amd_pstate or amd_pstate_epp (true = amd_pstate_epp driver instance (default), false = amd_pstate driver instance)"); + + static struct cpufreq_driver amd_pstate_driver; /** -- 2.34.1
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