[PATCH 3/5] drm/amd/pm: add Arcturus gfx ulv control interface

[Evan Quan]

This is needed for UMD pstate switch.

Change-Id: I40e235add95d6abbf99186112673a411edf2bb39
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
index 81f43fea4d52..c82ef2872a50 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
@@ -2313,6 +2313,17 @@ static ssize_t arcturus_get_gpu_metrics(struct smu_context *smu,
 	return sizeof(struct gpu_metrics_v1_0);
 }
 
+static int arcturus_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 arcturus_ppt_funcs = {
 	/* init dpm */
 	.get_allowed_feature_mask = arcturus_get_allowed_feature_mask,
@@ -2391,6 +2402,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
 	.get_pp_feature_mask = smu_cmn_get_pp_feature_mask,
 	.set_pp_feature_mask = smu_cmn_set_pp_feature_mask,
 	.get_gpu_metrics = arcturus_get_gpu_metrics,
+	.gfx_ulv_control = arcturus_gfx_ulv_control,
 };
 
 void arcturus_set_ppt_funcs(struct smu_context *smu)
-- 
2.28.0