drm/amdgpu: added a sysfs interface for thermal throttling

implement apu_thermal_cap r/w callback for vangogh

Signed-off-by: Kun Liu <Kun.Liu2@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
index cb10c7e31264676d6678133f5001fd684f1bfb24..016d5621e0b3af52c486832808a554158cbe9eea 100644 (file)
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
@@ -1590,6 +1590,21 @@ static int vangogh_read_sensor(struct smu_context *smu,
        return ret;
 }
 
+static int vangogh_get_apu_thermal_limit(struct smu_context *smu, uint32_t *limit)
+{
+       return smu_cmn_send_smc_msg_with_param(smu,
+                                             SMU_MSG_GetThermalLimit,
+                                             0, limit);
+}
+
+int vangogh_set_apu_thermal_limit(struct smu_context *smu, uint32_t limit)
+{
+       return smu_cmn_send_smc_msg_with_param(smu,
+                                             SMU_MSG_SetReducedThermalLimit,
+                                             limit, NULL);
+}
+
+
 static int vangogh_set_watermarks_table(struct smu_context *smu,
                                       struct pp_smu_wm_range_sets *clock_ranges)
 {
@@ -2425,6 +2440,8 @@ static const struct pptable_funcs vangogh_ppt_funcs = {
        .dpm_set_jpeg_enable = vangogh_dpm_set_jpeg_enable,
        .is_dpm_running = vangogh_is_dpm_running,
        .read_sensor = vangogh_read_sensor,
+       .get_apu_thermal_limit = vangogh_get_apu_thermal_limit,
+       .set_apu_thermal_limit = vangogh_set_apu_thermal_limit,
        .get_enabled_mask = smu_cmn_get_enabled_mask,
        .get_pp_feature_mask = smu_cmn_get_pp_feature_mask,
        .set_watermarks_table = vangogh_set_watermarks_table,