drm/amd/powerplay: add Vega20 support for gpu metrics export

Add Vega20 gpu metrics export interface.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c

@@ -55,6 +55,11 @@
 #define smnPCIE_LC_SPEED_CNTL			0x11140290
 #define smnPCIE_LC_LINK_WIDTH_CNTL		0x11140288
 
+#define LINK_WIDTH_MAX				6
+#define LINK_SPEED_MAX				3
+static int link_width[] = {0, 1, 2, 4, 8, 12, 16};
+static int link_speed[] = {25, 50, 80, 160};
+
 static void vega20_set_default_registry_data(struct pp_hwmgr *hwmgr)
 {
 	struct vega20_hwmgr *data =
@@ -3265,6 +3270,46 @@ static int vega20_set_ppfeature_status(struct pp_hwmgr *hwmgr, uint64_t new_ppfe
 	return 0;
 }
 
+static int vega20_get_current_pcie_link_width_level(struct pp_hwmgr *hwmgr)
+{
+	struct amdgpu_device *adev = hwmgr->adev;
+
+	return (RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL) &
+		PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD_MASK)
+		>> PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD__SHIFT;
+}
+
+static int vega20_get_current_pcie_link_width(struct pp_hwmgr *hwmgr)
+{
+	uint32_t width_level;
+
+	width_level = vega20_get_current_pcie_link_width_level(hwmgr);
+	if (width_level > LINK_WIDTH_MAX)
+		width_level = 0;
+
+	return link_width[width_level];
+}
+
+static int vega20_get_current_pcie_link_speed_level(struct pp_hwmgr *hwmgr)
+{
+	struct amdgpu_device *adev = hwmgr->adev;
+
+	return (RREG32_PCIE(smnPCIE_LC_SPEED_CNTL) &
+		PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE_MASK)
+		>> PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE__SHIFT;
+}
+
+static int vega20_get_current_pcie_link_speed(struct pp_hwmgr *hwmgr)
+{
+	uint32_t speed_level;
+
+	speed_level = vega20_get_current_pcie_link_speed_level(hwmgr);
+	if (speed_level > LINK_SPEED_MAX)
+		speed_level = 0;
+
+	return link_speed[speed_level];
+}
+
 static int vega20_print_clock_levels(struct pp_hwmgr *hwmgr,
 		enum pp_clock_type type, char *buf)
 {
@@ -3277,7 +3322,6 @@ static int vega20_print_clock_levels(struct pp_hwmgr *hwmgr,
 	struct phm_ppt_v3_information *pptable_information =
 		(struct phm_ppt_v3_information *)hwmgr->pptable;
 	PPTable_t *pptable = (PPTable_t *)pptable_information->smc_pptable;
-	struct amdgpu_device *adev = hwmgr->adev;
 	struct pp_clock_levels_with_latency clocks;
 	struct vega20_single_dpm_table *fclk_dpm_table =
 			&(data->dpm_table.fclk_table);
@@ -3371,12 +3415,10 @@ static int vega20_print_clock_levels(struct pp_hwmgr *hwmgr,
 		break;
 
 	case PP_PCIE:
-		current_gen_speed = (RREG32_PCIE(smnPCIE_LC_SPEED_CNTL) &
-			     PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE_MASK)
-			    >> PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE__SHIFT;
-		current_lane_width = (RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL) &
-			      PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD_MASK)
-			    >> PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD__SHIFT;
+		current_gen_speed =
+			vega20_get_current_pcie_link_speed_level(hwmgr);
+		current_lane_width =
+			vega20_get_current_pcie_link_width_level(hwmgr);
 		for (i = 0; i < NUM_LINK_LEVELS; i++) {
 			if (i == 1 && data->pcie_parameters_override) {
 				gen_speed = data->pcie_gen_level1;
@@ -4218,6 +4260,72 @@ static int vega20_set_xgmi_pstate(struct pp_hwmgr *hwmgr,
 	return ret;
 }
 
+static void vega20_init_gpu_metrics_v1_0(struct gpu_metrics_v1_0 *gpu_metrics)
+{
+	memset(gpu_metrics, 0xFF, sizeof(struct gpu_metrics_v1_0));
+
+	gpu_metrics->common_header.structure_size =
+				sizeof(struct gpu_metrics_v1_0);
+	gpu_metrics->common_header.format_revision = 1;
+	gpu_metrics->common_header.content_revision = 0;
+
+	gpu_metrics->system_clock_counter = ktime_get_boottime_ns();
+}
+
+static ssize_t vega20_get_gpu_metrics(struct pp_hwmgr *hwmgr,
+				      void **table)
+{
+	struct vega20_hwmgr *data =
+			(struct vega20_hwmgr *)(hwmgr->backend);
+	struct gpu_metrics_v1_0 *gpu_metrics =
+			&data->gpu_metrics_table;
+	SmuMetrics_t metrics;
+	uint32_t fan_speed_rpm;
+	int ret;
+
+	ret = vega20_get_metrics_table(hwmgr, &metrics);
+	if (ret)
+		return ret;
+
+	vega20_init_gpu_metrics_v1_0(gpu_metrics);
+
+	gpu_metrics->temperature_edge = metrics.TemperatureEdge;
+	gpu_metrics->temperature_hotspot = metrics.TemperatureHotspot;
+	gpu_metrics->temperature_mem = metrics.TemperatureHBM;
+	gpu_metrics->temperature_vrgfx = metrics.TemperatureVrGfx;
+	gpu_metrics->temperature_vrsoc = metrics.TemperatureVrSoc;
+	gpu_metrics->temperature_vrmem = metrics.TemperatureVrMem0;
+
+	gpu_metrics->average_gfx_activity = metrics.AverageGfxActivity;
+	gpu_metrics->average_umc_activity = metrics.AverageUclkActivity;
+
+	gpu_metrics->average_socket_power = metrics.AverageSocketPower;
+
+	gpu_metrics->average_gfxclk_frequency = metrics.AverageGfxclkFrequency;
+	gpu_metrics->average_socclk_frequency = metrics.AverageSocclkFrequency;
+	gpu_metrics->average_uclk_frequency = metrics.AverageUclkFrequency;
+
+	gpu_metrics->current_gfxclk = metrics.CurrClock[PPCLK_GFXCLK];
+	gpu_metrics->current_socclk = metrics.CurrClock[PPCLK_SOCCLK];
+	gpu_metrics->current_uclk = metrics.CurrClock[PPCLK_UCLK];
+	gpu_metrics->current_vclk0 = metrics.CurrClock[PPCLK_VCLK];
+	gpu_metrics->current_dclk0 = metrics.CurrClock[PPCLK_DCLK];
+
+	gpu_metrics->throttle_status = metrics.ThrottlerStatus;
+
+	vega20_fan_ctrl_get_fan_speed_rpm(hwmgr, &fan_speed_rpm);
+	gpu_metrics->current_fan_speed = (uint16_t)fan_speed_rpm;
+
+	gpu_metrics->pcie_link_width =
+			vega20_get_current_pcie_link_width(hwmgr);
+	gpu_metrics->pcie_link_speed =
+			vega20_get_current_pcie_link_speed(hwmgr);
+
+	*table = (void *)gpu_metrics;
+
+	return sizeof(struct gpu_metrics_v1_0);
+}
+
 static const struct pp_hwmgr_func vega20_hwmgr_funcs = {
 	/* init/fini related */
 	.backend_init = vega20_hwmgr_backend_init,
@@ -4288,6 +4396,7 @@ static const struct pp_hwmgr_func vega20_hwmgr_funcs = {
 	.smu_i2c_bus_access = vega20_smu_i2c_bus_access,
 	.set_df_cstate = vega20_set_df_cstate,
 	.set_xgmi_pstate = vega20_set_xgmi_pstate,
+	.get_gpu_metrics = vega20_get_gpu_metrics,
 };
 
 int vega20_hwmgr_init(struct pp_hwmgr *hwmgr)

drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.h

@@ -527,6 +527,7 @@ struct vega20_hwmgr {
 
 	unsigned long                  metrics_time;
 	SmuMetrics_t                   metrics_table;
+	struct gpu_metrics_v1_0        gpu_metrics_table;
 
 	bool                           pcie_parameters_override;
 	uint32_t                       pcie_gen_level1;