drm/amd/pp: Refine code in powerplay for Cz/Vega10

Add dpm check functions on CZ/Vega10 to smu backend
function table.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c

@@ -1009,32 +1009,9 @@ static void cz_reset_acp_boot_level(struct pp_hwmgr *hwmgr)
 	cz_hwmgr->acp_boot_level = 0xff;
 }
 
-static bool cz_dpm_check_smu_features(struct pp_hwmgr *hwmgr,
-				unsigned long check_feature)
-{
-	int result;
-	unsigned long features;
-
-	result = smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_GetFeatureStatus, 0);
-	if (result == 0) {
-		features = smum_get_argument(hwmgr);
-		if (features & check_feature)
-			return true;
-	}
-
-	return false;
-}
-
-static bool cz_check_for_dpm_enabled(struct pp_hwmgr *hwmgr)
-{
-	if (cz_dpm_check_smu_features(hwmgr, SMU_EnabledFeatureScoreboard_SclkDpmOn))
-		return true;
-	return false;
-}
-
 static int cz_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
 {
-	if (!cz_check_for_dpm_enabled(hwmgr)) {
+	if (!smum_is_dpm_running(hwmgr)) {
 		pr_info("dpm has been disabled\n");
 		return 0;
 	}
@@ -1049,7 +1026,7 @@ static int cz_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
 
 static int cz_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
 {
-	if (cz_check_for_dpm_enabled(hwmgr)) {
+	if (smum_is_dpm_running(hwmgr)) {
 		pr_info("dpm has been enabled\n");
 		return 0;
 	}

drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.h

@@ -171,7 +171,6 @@ struct cz_power_state {
 #define DPMFlags_Debug				0x80000000
 
 #define SMU_EnabledFeatureScoreboard_AcpDpmOn   0x00000001 /* bit 0 */
-#define SMU_EnabledFeatureScoreboard_SclkDpmOn    0x00200000
 #define SMU_EnabledFeatureScoreboard_UvdDpmOn   0x00800000 /* bit 23 */
 #define SMU_EnabledFeatureScoreboard_VceDpmOn   0x01000000 /* bit 24 */
 

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c

@@ -931,17 +931,6 @@ static int vega10_setup_asic_task(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-static bool vega10_is_dpm_running(struct pp_hwmgr *hwmgr)
-{
-	uint32_t features_enabled;
-
-	if (!vega10_get_smc_features(hwmgr, &features_enabled)) {
-		if (features_enabled & SMC_DPM_FEATURES)
-			return true;
-	}
-	return false;
-}
-
 /**
 * Remove repeated voltage values and create table with unique values.
 *
@@ -2874,7 +2863,7 @@ static int vega10_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
 	smum_send_msg_to_smc_with_parameter(hwmgr,
 			PPSMC_MSG_NumOfDisplays, 0);
 
-	tmp_result = (!vega10_is_dpm_running(hwmgr)) ? 0 : -1;
+	tmp_result = (!smum_is_dpm_running(hwmgr)) ? 0 : -1;
 	PP_ASSERT_WITH_CODE(!tmp_result,
 			"DPM is already running right , skipping re-enablement!",
 			return 0);
@@ -4699,7 +4688,7 @@ static int vega10_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
 {
 	int tmp_result, result = 0;
 
-	tmp_result = (vega10_is_dpm_running(hwmgr)) ? 0 : -1;
+	tmp_result = (smum_is_dpm_running(hwmgr)) ? 0 : -1;
 	PP_ASSERT_WITH_CODE(tmp_result == 0,
 			"DPM is not running right now, no need to disable DPM!",
 			return 0);

drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c

@@ -855,6 +855,29 @@ static int cz_smu_fini(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
+static bool cz_dpm_check_smu_features(struct pp_hwmgr *hwmgr,
+				unsigned long check_feature)
+{
+	int result;
+	unsigned long features;
+
+	result = cz_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_GetFeatureStatus, 0);
+	if (result == 0) {
+		features = smum_get_argument(hwmgr);
+		if (features & check_feature)
+			return true;
+	}
+
+	return false;
+}
+
+static bool cz_is_dpm_running(struct pp_hwmgr *hwmgr)
+{
+	if (cz_dpm_check_smu_features(hwmgr, SMU_EnabledFeatureScoreboard_SclkDpmOn))
+		return true;
+	return false;
+}
+
 const struct pp_smumgr_func cz_smu_funcs = {
 	.smu_init = cz_smu_init,
 	.smu_fini = cz_smu_fini,
@@ -867,5 +890,6 @@ const struct pp_smumgr_func cz_smu_funcs = {
 	.send_msg_to_smc_with_parameter = cz_send_msg_to_smc_with_parameter,
 	.download_pptable_settings = cz_download_pptable_settings,
 	.upload_pptable_settings = cz_upload_pptable_settings,
+	.is_dpm_running = cz_is_dpm_running,
 };
 

drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.h

@@ -31,6 +31,8 @@
 #define CZ_SCRATCH_SIZE_SDMA_METADATA           1024
 #define CZ_SCRATCH_SIZE_IH                      ((2*256+1)*4)
 
+#define SMU_EnabledFeatureScoreboard_SclkDpmOn    0x00200000
+
 enum cz_scratch_entry {
 	CZ_SCRATCH_ENTRY_UCODE_ID_SDMA0 = 0,
 	CZ_SCRATCH_ENTRY_UCODE_ID_SDMA1,

drivers/gpu/drm/amd/powerplay/smumgr/vega10_smumgr.c

@@ -317,6 +317,18 @@ int vega10_get_smc_features(struct pp_hwmgr *hwmgr,
 	return 0;
 }
 
+static bool vega10_is_dpm_running(struct pp_hwmgr *hwmgr)
+{
+	uint32_t features_enabled = 0;
+
+	vega10_get_smc_features(hwmgr, &features_enabled);
+
+	if (features_enabled & SMC_DPM_FEATURES)
+		return true;
+	else
+		return false;
+}
+
 int vega10_set_tools_address(struct pp_hwmgr *hwmgr)
 {
 	struct vega10_smumgr *priv =
@@ -583,4 +595,5 @@ const struct pp_smumgr_func vega10_smu_funcs = {
 	.send_msg_to_smc_with_parameter = &vega10_send_msg_to_smc_with_parameter,
 	.download_pptable_settings = NULL,
 	.upload_pptable_settings = NULL,
+	.is_dpm_running = vega10_is_dpm_running,
 };