[PATCH 2/5] drm/amd/pm: add Navi1x gfx ulv control interface

[Evan Quan]

This is needed for UMD pstate switch.

Change-Id: Id14399d3a5e4b24bb8a72a298ec4e96717444741
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index 4b4d461899df..c10119f29904 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -2578,6 +2578,17 @@ static int navi10_enable_mgpu_fan_boost(struct smu_context *smu)
 					       NULL);
 }
 
+static int navi10_gfx_ulv_control(struct smu_context *smu,
+				  bool enablement)
+{
+	int ret = 0;
+
+	if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_GFX_ULV_BIT))
+		ret = smu_cmn_feature_set_enabled(smu, SMU_FEATURE_GFX_ULV_BIT, enablement);
+
+	return ret;
+}
+
 static const struct pptable_funcs navi10_ppt_funcs = {
 	.get_allowed_feature_mask = navi10_get_allowed_feature_mask,
 	.set_default_dpm_table = navi10_set_default_dpm_table,
@@ -2660,6 +2671,7 @@ static const struct pptable_funcs navi10_ppt_funcs = {
 	.set_pp_feature_mask = smu_cmn_set_pp_feature_mask,
 	.get_gpu_metrics = navi10_get_gpu_metrics,
 	.enable_mgpu_fan_boost = navi10_enable_mgpu_fan_boost,
+	.gfx_ulv_control = navi10_gfx_ulv_control,
 };
 
 void navi10_set_ppt_funcs(struct smu_context *smu)
-- 
2.28.0