drm/amdgpu/smu: add metrics table lock for renoir (v2) (ed09a629) · Commits · 戴 / test

drivers/gpu/drm/amd/powerplay/renoir_ppt.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -171,17 +171,20 @@ static int renoir_get_metrics_table(struct smu_context *smu,
		struct smu_table_context *smu_table= &smu->smu_table;
		int ret = 0;

		mutex_lock(&smu->metrics_lock);
		if (!smu_table->metrics_time \|\| time_after(jiffies, smu_table->metrics_time + msecs_to_jiffies(100))) {
		ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0,
		(void *)smu_table->metrics_table, false);
		if (ret) {
		pr_info("Failed to export SMU metrics table!\n");
		mutex_unlock(&smu->metrics_lock);
		return ret;
		}
		smu_table->metrics_time = jiffies;
		}

		memcpy(metrics_table, smu_table->metrics_table, sizeof(SmuMetrics_t));
		mutex_unlock(&smu->metrics_lock);

		return ret;
		}
		@@ -239,8 +242,7 @@ static int renoir_print_clk_levels(struct smu_context *smu,

		memset(&metrics, 0, sizeof(metrics));

		ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0,
		(void *)&metrics, false);
		ret = renoir_get_metrics_table(smu, &metrics);
		if (ret)
		return ret;