drm/amd/powerplay: add UMD P-state in powerplay.

This feature is for UMD to run benchmark in a
power state that is as steady as possible. kmd
need to fix the power state as stable as possible.
now, kmd support four level:
profile_standard,peak,min_sclk,min_mclk

move common related code to amd_powerplay.c
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/amd_powerplay.c

@@ -30,7 +30,6 @@
 #include "pp_instance.h"
 #include "power_state.h"
 
-
 static inline int pp_check(struct pp_instance *handle)
 {
 	if (handle == NULL || handle->pp_valid != PP_VALID)
@@ -287,6 +286,42 @@ static int pp_dpm_fw_loading_complete(void *handle)
 	return 0;
 }
 
+static void pp_dpm_en_umd_pstate(struct pp_hwmgr  *hwmgr,
+						enum amd_dpm_forced_level *level)
+{
+	uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
+					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
+					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
+					AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
+
+	if (!(hwmgr->dpm_level & profile_mode_mask)) {
+		/* enter umd pstate, save current level, disable gfx cg*/
+		if (*level & profile_mode_mask) {
+			hwmgr->saved_dpm_level = hwmgr->dpm_level;
+			hwmgr->en_umd_pstate = true;
+			cgs_set_clockgating_state(hwmgr->device,
+						AMD_IP_BLOCK_TYPE_GFX,
+						AMD_CG_STATE_UNGATE);
+			cgs_set_powergating_state(hwmgr->device,
+					AMD_IP_BLOCK_TYPE_GFX,
+					AMD_PG_STATE_UNGATE);
+		}
+	} else {
+		/* exit umd pstate, restore level, enable gfx cg*/
+		if (!(*level & profile_mode_mask)) {
+			if (*level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)
+				*level = hwmgr->saved_dpm_level;
+			hwmgr->en_umd_pstate = false;
+			cgs_set_clockgating_state(hwmgr->device,
+					AMD_IP_BLOCK_TYPE_GFX,
+					AMD_CG_STATE_GATE);
+			cgs_set_powergating_state(hwmgr->device,
+					AMD_IP_BLOCK_TYPE_GFX,
+					AMD_PG_STATE_GATE);
+		}
+	}
+}
+
 static int pp_dpm_force_performance_level(void *handle,
 					enum amd_dpm_forced_level level)
 {
@@ -301,14 +336,22 @@ static int pp_dpm_force_performance_level(void *handle,
 
 	hwmgr = pp_handle->hwmgr;
 
+	if (level == hwmgr->dpm_level)
+		return 0;
+
 	if (hwmgr->hwmgr_func->force_dpm_level == NULL) {
 		pr_info("%s was not implemented.\n", __func__);
 		return 0;
 	}
 
 	mutex_lock(&pp_handle->pp_lock);
+	pp_dpm_en_umd_pstate(hwmgr, &level);
+	hwmgr->request_dpm_level = level;
 	hwmgr_handle_task(pp_handle, AMD_PP_TASK_READJUST_POWER_STATE, NULL, NULL);
-	hwmgr->hwmgr_func->force_dpm_level(hwmgr, level);
+	ret = hwmgr->hwmgr_func->force_dpm_level(hwmgr, level);
+	if (!ret)
+		hwmgr->dpm_level = hwmgr->request_dpm_level;
+
 	mutex_unlock(&pp_handle->pp_lock);
 	return 0;
 }

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

@@ -1314,57 +1314,21 @@ static int cz_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 				enum amd_dpm_forced_level level)
 {
 	int ret = 0;
-	uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
-					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
-					AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
-
-	if (level == hwmgr->dpm_level)
-		return ret;
-
-	if (!(hwmgr->dpm_level & profile_mode_mask)) {
-		/* enter profile mode, save current level, disable gfx cg*/
-		if (level & profile_mode_mask) {
-			hwmgr->saved_dpm_level = hwmgr->dpm_level;
-			cgs_set_clockgating_state(hwmgr->device,
-						AMD_IP_BLOCK_TYPE_GFX,
-						AMD_CG_STATE_UNGATE);
-		}
-	} else {
-		/* exit profile mode, restore level, enable gfx cg*/
-		if (!(level & profile_mode_mask)) {
-			if (level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)
-				level = hwmgr->saved_dpm_level;
-			cgs_set_clockgating_state(hwmgr->device,
-					AMD_IP_BLOCK_TYPE_GFX,
-					AMD_CG_STATE_GATE);
-		}
-	}
 
 	switch (level) {
 	case AMD_DPM_FORCED_LEVEL_HIGH:
 	case AMD_DPM_FORCED_LEVEL_PROFILE_PEAK:
 		ret = cz_phm_force_dpm_highest(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_LOW:
 	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK:
 	case AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD:
 		ret = cz_phm_force_dpm_lowest(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_AUTO:
 		ret = cz_phm_unforce_dpm_levels(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_MANUAL:
-		hwmgr->dpm_level = level;
-		break;
 	case AMD_DPM_FORCED_LEVEL_PROFILE_EXIT:
 	default:
 		break;

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c

@@ -2568,51 +2568,16 @@ static int smu7_force_dpm_level(struct pp_hwmgr *hwmgr,
 	uint32_t sclk_mask = 0;
 	uint32_t mclk_mask = 0;
 	uint32_t pcie_mask = 0;
-	uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
-					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
-					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
-					AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
-
-	if (level == hwmgr->dpm_level)
-		return ret;
-
-	if (!(hwmgr->dpm_level & profile_mode_mask)) {
-		/* enter profile mode, save current level, disable gfx cg*/
-		if (level & profile_mode_mask) {
-			hwmgr->saved_dpm_level = hwmgr->dpm_level;
-			cgs_set_clockgating_state(hwmgr->device,
-						AMD_IP_BLOCK_TYPE_GFX,
-						AMD_CG_STATE_UNGATE);
-		}
-	} else {
-		/* exit profile mode, restore level, enable gfx cg*/
-		if (!(level & profile_mode_mask)) {
-			if (level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)
-				level = hwmgr->saved_dpm_level;
-			cgs_set_clockgating_state(hwmgr->device,
-					AMD_IP_BLOCK_TYPE_GFX,
-					AMD_CG_STATE_GATE);
-		}
-	}
 
 	switch (level) {
 	case AMD_DPM_FORCED_LEVEL_HIGH:
 		ret = smu7_force_dpm_highest(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_LOW:
 		ret = smu7_force_dpm_lowest(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_AUTO:
 		ret = smu7_unforce_dpm_levels(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD:
 	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK:
@@ -2621,26 +2586,23 @@ static int smu7_force_dpm_level(struct pp_hwmgr *hwmgr,
 		ret = smu7_get_profiling_clk(hwmgr, level, &sclk_mask, &mclk_mask, &pcie_mask);
 		if (ret)
 			return ret;
-		hwmgr->dpm_level = level;
 		smu7_force_clock_level(hwmgr, PP_SCLK, 1<<sclk_mask);
 		smu7_force_clock_level(hwmgr, PP_MCLK, 1<<mclk_mask);
 		smu7_force_clock_level(hwmgr, PP_PCIE, 1<<pcie_mask);
-
 		break;
 	case AMD_DPM_FORCED_LEVEL_MANUAL:
-		hwmgr->dpm_level = level;
-		break;
 	case AMD_DPM_FORCED_LEVEL_PROFILE_EXIT:
 	default:
 		break;
 	}
 
-	if (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->saved_dpm_level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
-		smu7_fan_ctrl_set_fan_speed_percent(hwmgr, 100);
-	else if (level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->saved_dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
-		smu7_fan_ctrl_reset_fan_speed_to_default(hwmgr);
-
-	return 0;
+	if (!ret) {
+		if (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
+			smu7_fan_ctrl_set_fan_speed_percent(hwmgr, 100);
+		else if (level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
+			smu7_fan_ctrl_reset_fan_speed_to_default(hwmgr);
+	}
+	return ret;
 }
 
 static int smu7_get_power_state_size(struct pp_hwmgr *hwmgr)
@@ -4245,9 +4207,9 @@ static int smu7_force_clock_level(struct pp_hwmgr *hwmgr,
 {
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
 
-	if (hwmgr->dpm_level & (AMD_DPM_FORCED_LEVEL_AUTO |
-				AMD_DPM_FORCED_LEVEL_LOW |
-				AMD_DPM_FORCED_LEVEL_HIGH))
+	if (hwmgr->request_dpm_level & (AMD_DPM_FORCED_LEVEL_AUTO |
+					AMD_DPM_FORCED_LEVEL_LOW |
+					AMD_DPM_FORCED_LEVEL_HIGH))
 		return -EINVAL;
 
 	switch (type) {

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

@@ -4306,51 +4306,16 @@ static int vega10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 	uint32_t sclk_mask = 0;
 	uint32_t mclk_mask = 0;
 	uint32_t soc_mask = 0;
-	uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
-					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
-					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
-					AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
-
-	if (level == hwmgr->dpm_level)
-		return ret;
-
-	if (!(hwmgr->dpm_level & profile_mode_mask)) {
-		/* enter profile mode, save current level, disable gfx cg*/
-		if (level & profile_mode_mask) {
-			hwmgr->saved_dpm_level = hwmgr->dpm_level;
-			cgs_set_clockgating_state(hwmgr->device,
-						AMD_IP_BLOCK_TYPE_GFX,
-						AMD_CG_STATE_UNGATE);
-		}
-	} else {
-		/* exit profile mode, restore level, enable gfx cg*/
-		if (!(level & profile_mode_mask)) {
-			if (level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)
-				level = hwmgr->saved_dpm_level;
-			cgs_set_clockgating_state(hwmgr->device,
-					AMD_IP_BLOCK_TYPE_GFX,
-					AMD_CG_STATE_GATE);
-		}
-	}
 
 	switch (level) {
 	case AMD_DPM_FORCED_LEVEL_HIGH:
 		ret = vega10_force_dpm_highest(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_LOW:
 		ret = vega10_force_dpm_lowest(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_AUTO:
 		ret = vega10_unforce_dpm_levels(hwmgr);
-		if (ret)
-			return ret;
-		hwmgr->dpm_level = level;
 		break;
 	case AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD:
 	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK:
@@ -4359,24 +4324,22 @@ static int vega10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 		ret = vega10_get_profiling_clk_mask(hwmgr, level, &sclk_mask, &mclk_mask, &soc_mask);
 		if (ret)
 			return ret;
-		hwmgr->dpm_level = level;
 		vega10_force_clock_level(hwmgr, PP_SCLK, 1<<sclk_mask);
 		vega10_force_clock_level(hwmgr, PP_MCLK, 1<<mclk_mask);
 		break;
 	case AMD_DPM_FORCED_LEVEL_MANUAL:
-		hwmgr->dpm_level = level;
-		break;
 	case AMD_DPM_FORCED_LEVEL_PROFILE_EXIT:
 	default:
 		break;
 	}
 
-	if (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->saved_dpm_level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
-		vega10_set_fan_control_mode(hwmgr, AMD_FAN_CTRL_NONE);
-	else if (level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->saved_dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
-		vega10_set_fan_control_mode(hwmgr, AMD_FAN_CTRL_AUTO);
-
-	return 0;
+	if (!ret) {
+		if (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
+			vega10_set_fan_control_mode(hwmgr, AMD_FAN_CTRL_NONE);
+		else if (level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
+			vega10_set_fan_control_mode(hwmgr, AMD_FAN_CTRL_AUTO);
+	}
+	return ret;
 }
 
 static int vega10_get_fan_control_mode(struct pp_hwmgr *hwmgr)
@@ -4624,7 +4587,7 @@ static int vega10_force_clock_level(struct pp_hwmgr *hwmgr,
 	struct vega10_hwmgr *data = (struct vega10_hwmgr *)(hwmgr->backend);
 	int i;
 
-	if (hwmgr->dpm_level & (AMD_DPM_FORCED_LEVEL_AUTO |
+	if (hwmgr->request_dpm_level & (AMD_DPM_FORCED_LEVEL_AUTO |
 				AMD_DPM_FORCED_LEVEL_LOW |
 				AMD_DPM_FORCED_LEVEL_HIGH))
 		return -EINVAL;

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

@@ -747,6 +747,7 @@ struct pp_hwmgr {
 
 	enum amd_dpm_forced_level dpm_level;
 	enum amd_dpm_forced_level saved_dpm_level;
+	enum amd_dpm_forced_level request_dpm_level;
 	bool block_hw_access;
 	struct phm_gfx_arbiter gfx_arbiter;
 	struct phm_acp_arbiter acp_arbiter;
@@ -786,12 +787,13 @@ struct pp_hwmgr {
 	struct amd_pp_display_configuration display_config;
 	uint32_t feature_mask;
 
-	/* power profile */
+	/* UMD Pstate */
 	struct amd_pp_profile gfx_power_profile;
 	struct amd_pp_profile compute_power_profile;
 	struct amd_pp_profile default_gfx_power_profile;
 	struct amd_pp_profile default_compute_power_profile;
 	enum amd_pp_profile_type current_power_profile;
+	bool en_umd_pstate;
 };
 
 extern int hwmgr_early_init(struct pp_instance *handle);