drm/amd/powerplay: implement feature get&set functions

add smu feature operation function helper to deal with smu feature
bitmap.
Signed-off-by: Kevin Wang <Kevin1.Wang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/amdgpu_smu.c

@@ -49,6 +49,43 @@ int smu_feature_init_dpm(struct smu_context *smu)
 	return ret;
 }
 
+int smu_feature_is_enabled(struct smu_context *smu, int feature_id)
+{
+	struct smu_feature *feature = &smu->smu_feature;
+	WARN_ON(feature_id > feature->feature_num);
+	return test_bit(feature_id, feature->enabled);
+}
+
+int smu_feature_set_enabled(struct smu_context *smu, int feature_id, bool enable)
+{
+	struct smu_feature *feature = &smu->smu_feature;
+	WARN_ON(feature_id > feature->feature_num);
+	if (enable)
+		test_and_set_bit(feature_id, feature->enabled);
+	else
+		test_and_clear_bit(feature_id, feature->enabled);
+	return 0;
+}
+
+int smu_feature_is_supported(struct smu_context *smu, int feature_id)
+{
+	struct smu_feature *feature = &smu->smu_feature;
+	WARN_ON(feature_id > feature->feature_num);
+	return test_bit(feature_id, feature->supported);
+}
+
+int smu_feature_set_supported(struct smu_context *smu, int feature_id,
+			      bool enable)
+{
+	struct smu_feature *feature = &smu->smu_feature;
+	WARN_ON(feature_id > feature->feature_num);
+	if (enable)
+		test_and_set_bit(feature_id, feature->supported);
+	else
+		test_and_clear_bit(feature_id, feature->supported);
+	return 0;
+}
+
 static int smu_set_funcs(struct amdgpu_device *adev)
 {
 	struct smu_context *smu = &adev->smu;

drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h

@@ -327,4 +327,9 @@ extern const struct amd_ip_funcs smu_ip_funcs;
 extern const struct amdgpu_ip_block_version smu_v11_0_ip_block;
 extern int smu_feature_init_dpm(struct smu_context *smu);
 
+extern int smu_feature_is_enabled(struct smu_context *smu, int feature_id);
+extern int smu_feature_set_enabled(struct smu_context *smu, int feature_id, bool enable);
+extern int smu_feature_is_supported(struct smu_context *smu, int feature_id);
+extern int smu_feature_set_supported(struct smu_context *smu, int feature_id, bool enable);
+
 #endif