drm/amd/pm: drop unneeded smu->metrics_lock

As all those related APIs are already well protected by
adev->pm.mutex and smu->message_lock.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

@@ -956,7 +956,6 @@ static int smu_sw_init(void *handle)
 	bitmap_zero(smu->smu_feature.allowed, SMU_FEATURE_MAX);
 
 	mutex_init(&smu->sensor_lock);
-	mutex_init(&smu->metrics_lock);
 	mutex_init(&smu->message_lock);
 
 	INIT_WORK(&smu->throttling_logging_work, smu_throttling_logging_work_fn);

drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h

@@ -487,7 +487,6 @@ struct smu_context
 	const struct cmn2asic_mapping	*pwr_src_map;
 	const struct cmn2asic_mapping	*workload_map;
 	struct mutex			sensor_lock;
-	struct mutex			metrics_lock;
 	struct mutex			message_lock;
 	uint64_t pool_size;
 

drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c

@@ -602,15 +602,11 @@ static int arcturus_get_smu_metrics_data(struct smu_context *smu,
 	SmuMetrics_t *metrics = (SmuMetrics_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -693,8 +689,6 @@ static int arcturus_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 

drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c

@@ -150,13 +150,9 @@ cyan_skillfish_get_smu_metrics_data(struct smu_context *smu,
 	SmuMetrics_t *metrics = (SmuMetrics_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu, NULL, false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu, NULL, false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -200,8 +196,6 @@ cyan_skillfish_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 

drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c

@@ -546,15 +546,11 @@ static int navi10_get_legacy_smu_metrics_data(struct smu_context *smu,
 		(SmuMetrics_legacy_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -624,8 +620,6 @@ static int navi10_get_legacy_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 
@@ -638,15 +632,11 @@ static int navi10_get_smu_metrics_data(struct smu_context *smu,
 		(SmuMetrics_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -719,8 +709,6 @@ static int navi10_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 
@@ -733,15 +721,11 @@ static int navi12_get_legacy_smu_metrics_data(struct smu_context *smu,
 		(SmuMetrics_NV12_legacy_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -811,8 +795,6 @@ static int navi12_get_legacy_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 
@@ -825,15 +807,11 @@ static int navi12_get_smu_metrics_data(struct smu_context *smu,
 		(SmuMetrics_NV12_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -906,8 +884,6 @@ static int navi12_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 
@@ -2708,20 +2684,14 @@ static ssize_t navi10_get_legacy_gpu_metrics(struct smu_context *smu,
 	SmuMetrics_legacy_t metrics;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       true);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					true);
+	if (ret)
 		return ret;
-	}
 
 	memcpy(&metrics, smu_table->metrics_table, sizeof(SmuMetrics_legacy_t));
 
-	mutex_unlock(&smu->metrics_lock);
-
 	smu_cmn_init_soft_gpu_metrics(gpu_metrics, 1, 3);
 
 	gpu_metrics->temperature_edge = metrics.TemperatureEdge;
@@ -2901,20 +2871,14 @@ static ssize_t navi10_get_gpu_metrics(struct smu_context *smu,
 	SmuMetrics_t metrics;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       true);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					true);
+	if (ret)
 		return ret;
-	}
 
 	memcpy(&metrics, smu_table->metrics_table, sizeof(SmuMetrics_t));
 
-	mutex_unlock(&smu->metrics_lock);
-
 	smu_cmn_init_soft_gpu_metrics(gpu_metrics, 1, 3);
 
 	gpu_metrics->temperature_edge = metrics.TemperatureEdge;
@@ -2979,20 +2943,14 @@ static ssize_t navi12_get_legacy_gpu_metrics(struct smu_context *smu,
 	SmuMetrics_NV12_legacy_t metrics;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       true);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					true);
+	if (ret)
 		return ret;
-	}
 
 	memcpy(&metrics, smu_table->metrics_table, sizeof(SmuMetrics_NV12_legacy_t));
 
-	mutex_unlock(&smu->metrics_lock);
-
 	smu_cmn_init_soft_gpu_metrics(gpu_metrics, 1, 3);
 
 	gpu_metrics->temperature_edge = metrics.TemperatureEdge;
@@ -3060,20 +3018,14 @@ static ssize_t navi12_get_gpu_metrics(struct smu_context *smu,
 	SmuMetrics_NV12_t metrics;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       true);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					true);
+	if (ret)
 		return ret;
-	}
 
 	memcpy(&metrics, smu_table->metrics_table, sizeof(SmuMetrics_NV12_t));
 
-	mutex_unlock(&smu->metrics_lock);
-
 	smu_cmn_init_soft_gpu_metrics(gpu_metrics, 1, 3);
 
 	gpu_metrics->temperature_edge = metrics.TemperatureEdge;

drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c

@@ -539,15 +539,11 @@ static int sienna_cichlid_get_smu_metrics_data(struct smu_context *smu,
 	uint16_t average_gfx_activity;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -647,8 +643,6 @@ static int sienna_cichlid_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 
 }
@@ -3580,14 +3574,11 @@ static ssize_t sienna_cichlid_get_gpu_metrics(struct smu_context *smu,
 	uint16_t average_gfx_activity;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       &metrics_external,
-					       true);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					&metrics_external,
+					true);
+	if (ret)
 		return ret;
-	}
 
 	smu_cmn_init_soft_gpu_metrics(gpu_metrics, 1, 3);
 
@@ -3677,8 +3668,6 @@ static ssize_t sienna_cichlid_get_gpu_metrics(struct smu_context *smu,
 				smu_v11_0_get_current_pcie_link_speed(smu);
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	gpu_metrics->system_clock_counter = ktime_get_boottime_ns();
 
 	*table = (void *)gpu_metrics;

drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c

@@ -273,15 +273,11 @@ static int vangogh_get_legacy_smu_metrics_data(struct smu_context *smu,
 	SmuMetrics_legacy_t *metrics = (SmuMetrics_legacy_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -335,8 +331,6 @@ static int vangogh_get_legacy_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 
@@ -348,15 +342,11 @@ static int vangogh_get_smu_metrics_data(struct smu_context *smu,
 	SmuMetrics_t *metrics = (SmuMetrics_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -410,8 +400,6 @@ static int vangogh_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 

drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c

@@ -1128,15 +1128,11 @@ static int renoir_get_smu_metrics_data(struct smu_context *smu,
 	SmuMetrics_t *metrics = (SmuMetrics_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_AVERAGE_GFXCLK:
@@ -1201,8 +1197,6 @@ static int renoir_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 

drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c

@@ -571,15 +571,11 @@ static int aldebaran_get_smu_metrics_data(struct smu_context *smu,
 	SmuMetrics_t *metrics = (SmuMetrics_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       NULL,
-					       false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu,
+					NULL,
+					false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_CURR_GFXCLK:
@@ -653,8 +649,6 @@ static int aldebaran_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 
@@ -1594,17 +1588,14 @@ static void aldebaran_get_unique_id(struct smu_context *smu)
 	uint32_t upper32 = 0, lower32 = 0;
 	int ret;
 
-	mutex_lock(&smu->metrics_lock);
-	ret = smu_cmn_get_metrics_table_locked(smu, NULL, false);
+	ret = smu_cmn_get_metrics_table(smu, NULL, false);
 	if (ret)
-		goto out_unlock;
+		goto out;
 
 	upper32 = metrics->PublicSerialNumUpper32;
 	lower32 = metrics->PublicSerialNumLower32;
 
-out_unlock:
-	mutex_unlock(&smu->metrics_lock);
-
+out:
 	adev->unique_id = ((uint64_t)upper32 << 32) | lower32;
 	if (adev->serial[0] == '\0')
 		sprintf(adev->serial, "%016llx", adev->unique_id);

drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c

@@ -310,13 +310,9 @@ static int yellow_carp_get_smu_metrics_data(struct smu_context *smu,
 	SmuMetrics_t *metrics = (SmuMetrics_t *)smu_table->metrics_table;
 	int ret = 0;
 
-	mutex_lock(&smu->metrics_lock);
-
-	ret = smu_cmn_get_metrics_table_locked(smu, NULL, false);
-	if (ret) {
-		mutex_unlock(&smu->metrics_lock);
+	ret = smu_cmn_get_metrics_table(smu, NULL, false);
+	if (ret)
 		return ret;
-	}
 
 	switch (member) {
 	case METRICS_AVERAGE_GFXCLK:
@@ -387,8 +383,6 @@ static int yellow_carp_get_smu_metrics_data(struct smu_context *smu,
 		break;
 	}
 
-	mutex_unlock(&smu->metrics_lock);
-
 	return ret;
 }
 

drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c

@@ -964,9 +964,9 @@ int smu_cmn_write_pptable(struct smu_context *smu)
 				    true);
 }
 
-int smu_cmn_get_metrics_table_locked(struct smu_context *smu,
-				     void *metrics_table,
-				     bool bypass_cache)
+int smu_cmn_get_metrics_table(struct smu_context *smu,
+			      void *metrics_table,
+			      bool bypass_cache)
 {
 	struct smu_table_context *smu_table= &smu->smu_table;
 	uint32_t table_size =
@@ -994,21 +994,6 @@ int smu_cmn_get_metrics_table_locked(struct smu_context *smu,
 	return 0;
 }
 
-int smu_cmn_get_metrics_table(struct smu_context *smu,
-			      void *metrics_table,
-			      bool bypass_cache)
-{
-	int ret = 0;
-
-	mutex_lock(&smu->metrics_lock);
-	ret = smu_cmn_get_metrics_table_locked(smu,
-					       metrics_table,
-					       bypass_cache);
-	mutex_unlock(&smu->metrics_lock);
-
-	return ret;
-}
-
 void smu_cmn_init_soft_gpu_metrics(void *table, uint8_t frev, uint8_t crev)
 {
 	struct metrics_table_header *header = (struct metrics_table_header *)table;

drivers/gpu/drm/amd/pm/swsmu/smu_cmn.h

@@ -101,10 +101,6 @@ int smu_cmn_write_watermarks_table(struct smu_context *smu);
 
 int smu_cmn_write_pptable(struct smu_context *smu);
 
-int smu_cmn_get_metrics_table_locked(struct smu_context *smu,
-				     void *metrics_table,
-				     bool bypass_cache);
-
 int smu_cmn_get_metrics_table(struct smu_context *smu,
 			      void *metrics_table,
 			      bool bypass_cache);