drm/amd/powerplay: add check for power limit OD support

Before counting the OD percent into max power limit margin.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 186cdf6..1157945 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -1920,6 +1920,7 @@ static int navi10_get_power_limit(struct smu_context *smu)
 {
        struct smu_11_0_powerplay_table *powerplay_table =
                (struct smu_11_0_powerplay_table *)smu->smu_table.power_play_table;
+       struct smu_11_0_overdrive_table *od_settings = smu->od_settings;
        PPTable_t *pptable = smu->smu_table.driver_pptable;
        uint32_t power_limit, od_percent;
 
@@ -1934,7 +1935,8 @@ static int navi10_get_power_limit(struct smu_context *smu)
        }
        smu->current_power_limit = power_limit;
 
-       if (smu->od_enabled) {
+       if (smu->od_enabled &&
+           navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT)) {
                od_percent = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
 
                dev_dbg(smu->adev->dev, "ODSETTING_POWERPERCENTAGE: %d (default: %d)\n", od_percent, power_limit);