1 files changed, 29 insertions, 17 deletions

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
index ed05a30d1139..f5d59fa3a030 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
@@ -1261,9 +1261,21 @@ static int smu10_read_sensor(struct pp_hwmgr *hwmgr, int idx,
 			  void *value, int *size)
 {
 	struct smu10_hwmgr *smu10_data = (struct smu10_hwmgr *)(hwmgr->backend);
-	uint32_t sclk, mclk;
+	struct amdgpu_device *adev = hwmgr->adev;
+	uint32_t sclk, mclk, activity_percent;
+	bool has_gfx_busy;
 	int ret = 0;
 
+	/* GetGfxBusy support was added on RV SMU FW 30.85.00 and PCO 4.30.59 */
+	if ((adev->apu_flags & AMD_APU_IS_PICASSO) &&
+	    (hwmgr->smu_version >= 0x41e3b))
+		has_gfx_busy = true;
+	else if ((adev->apu_flags & AMD_APU_IS_RAVEN) &&
+		 (hwmgr->smu_version >= 0x1e5500))
+		has_gfx_busy = true;
+	else
+		has_gfx_busy = false;
+
 	switch (idx) {
 	case AMDGPU_PP_SENSOR_GFX_SCLK:
 		smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetGfxclkFrequency, &sclk);
@@ -1284,8 +1296,22 @@ static int smu10_read_sensor(struct pp_hwmgr *hwmgr, int idx,
 		*(uint32_t *)value =  smu10_data->vcn_power_gated ? 0 : 1;
 		*size = 4;
 		break;
+	case AMDGPU_PP_SENSOR_GPU_LOAD:
+		if (has_gfx_busy) {
+			ret = smum_send_msg_to_smc(hwmgr,
+						   PPSMC_MSG_GetGfxBusy,
+						   &activity_percent);
+			if (!ret)
+				activity_percent = activity_percent > 100 ? 100 : activity_percent;
+			else
+				return -EIO;
+			*((uint32_t *)value) = activity_percent;
+			return 0;
+		} else {
+			return -EOPNOTSUPP;
+		}
 	default:
-		ret = -EINVAL;
+		ret = -EOPNOTSUPP;
 		break;
 	}
 
@@ -1487,7 +1513,7 @@ static int smu10_set_fine_grain_clk_vol(struct pp_hwmgr *hwmgr,
 	}
 
 	if (!smu10_data->fine_grain_enabled) {
-		pr_err("pp_od_clk_voltage is not accessible if power_dpm_force_perfomance_level is not in manual mode!\n");
+		pr_err("pp_od_clk_voltage is not accessible if power_dpm_force_performance_level is not in manual mode!\n");
 		return -EINVAL;
 	}
 
@@ -1526,20 +1552,6 @@ static int smu10_set_fine_grain_clk_vol(struct pp_hwmgr *hwmgr,
 
 		smu10_data->gfx_actual_soft_min_freq = min_freq;
 		smu10_data->gfx_actual_soft_max_freq = max_freq;
-
-		ret = smum_send_msg_to_smc_with_parameter(hwmgr,
-					PPSMC_MSG_SetHardMinGfxClk,
-					min_freq,
-					NULL);
-		if (ret)
-			return ret;
-
-		ret = smum_send_msg_to_smc_with_parameter(hwmgr,
-					PPSMC_MSG_SetSoftMaxGfxClk,
-					max_freq,
-					NULL);
-		if (ret)
-			return ret;
 	} else if (type == PP_OD_COMMIT_DPM_TABLE) {
 		if (size != 0) {
 			pr_err("Input parameter number not correct\n");