Hello Mario,
On Mon, Oct 21, 2024 at 01:02:50PM -0500, Mario Limonciello wrote:
> On designs that have workload classification, it's preferred that
> the amd-hfi driver is used to provide hints to the scheduler of
> which cores to use instead of the amd-pstate driver.
>
> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> ---
> v2->v3:
> * Disable prefcore sysfs file too
> ---
> 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 2670bdcad6eda..4dea5a6f86c11 100644
> --- a/drivers/cpufreq/amd-pstate.c
> +++ b/drivers/cpufreq/amd-pstate.c
> @@ -782,6 +782,12 @@ static void amd_pstate_init_prefcore(struct amd_cpudata *cpudata)
> /* user disabled or not detected */
> if (!amd_pstate_prefcore)
> return;
> + /* should use amd-hfi instead */
> + if (boot_cpu_has(X86_FEATURE_AMD_WORKLOAD_CLASS) &&
> + IS_ENABLED(CONFIG_AMD_HFI)) {
> + amd_pstate_prefcore = false;
> + return;
> + }
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@xxxxxxx>
--
Thanks and Regards
gautham.
