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 90868c8b214e..f2a23f622843 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -763,6 +763,12 @@ 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_WORKLOAD_CLASS) &&
+ IS_ENABLED(CONFIG_AMD_HFI)) {
+ amd_pstate_prefcore = false;
+ return;
+ }
cpudata->hw_prefcore = true;
--
2.43.0
