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drm/amd/powerplay: honor hw limit on fetching metrics data for navi10

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too frequently to update mertrics table will cause smu internal error.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kevin Wang 2019-08-02 12:01:00 +08:00 committed by Alex Deucher
parent bd200d190f
commit b94afb61cd
1 changed files with 38 additions and 18 deletions
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56
drivers/gpu/drm/amd/powerplay/navi10_ppt.c
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@ -516,6 +516,8 @@ static int navi10_store_powerplay_table(struct smu_context *smu)
static int navi10_tables_init(struct smu_context *smu, struct smu_table *tables)
{
struct smu_table_context *smu_table = &smu->smu_table;
SMU_TABLE_INIT(tables, SMU_TABLE_PPTABLE, sizeof(PPTable_t),
PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM);
SMU_TABLE_INIT(tables, SMU_TABLE_WATERMARKS, sizeof(Watermarks_t),
@ -530,9 +532,35 @@ static int navi10_tables_init(struct smu_context *smu, struct smu_table *tables)
sizeof(DpmActivityMonitorCoeffInt_t), PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM);
smu_table->metrics_table = kzalloc(sizeof(SmuMetrics_t), GFP_KERNEL);
if (!smu_table->metrics_table)
return -ENOMEM;
smu_table->metrics_time = 0;
return 0;
}
static int navi10_get_metrics_table(struct smu_context *smu,
SmuMetrics_t *metrics_table)
{
struct smu_table_context *smu_table= &smu->smu_table;
int ret = 0;
if (!smu_table->metrics_time || time_after(jiffies, smu_table->metrics_time + HZ / 1000)) {
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");
return ret;
}
smu_table->metrics_time = jiffies;
}
memcpy(metrics_table, smu_table->metrics_table, sizeof(SmuMetrics_t));
return ret;
}
static int navi10_allocate_dpm_context(struct smu_context *smu)
{
struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
@ -612,15 +640,10 @@ static int navi10_get_current_clk_freq_by_table(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t *value)
{
static SmuMetrics_t metrics;
int ret = 0, clk_id = 0;
SmuMetrics_t metrics;
if (!value)
return -EINVAL;
memset(&metrics, 0, sizeof(metrics));
ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0, (void *)&metrics, false);
ret = navi10_get_metrics_table(smu, &metrics);
if (ret)
return ret;
@ -908,8 +931,9 @@ static int navi10_get_gpu_power(struct smu_context *smu, uint32_t *value)
if (!value)
return -EINVAL;
ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0, (void *)&metrics,
false);
ret = navi10_get_metrics_table(smu, &metrics);
if (ret)
return ret;
if (ret)
return ret;
@ -928,10 +952,7 @@ static int navi10_get_current_activity_percent(struct smu_context *smu,
if (!value)
return -EINVAL;
msleep(1);
ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0,
(void *)&metrics, false);
ret = navi10_get_metrics_table(smu, &metrics);
if (ret)
return ret;
@ -970,10 +991,9 @@ static int navi10_get_fan_speed_rpm(struct smu_context *smu,
if (!speed)
return -EINVAL;
memset(&metrics, 0, sizeof(metrics));
ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0,
(void *)&metrics, false);
ret = navi10_get_metrics_table(smu, &metrics);
if (ret)
return ret;
if (ret)
return ret;
@ -1326,7 +1346,7 @@ static int navi10_thermal_get_temperature(struct smu_context *smu,
if (!value)
return -EINVAL;
ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0, (void *)&metrics, false);
ret = navi10_get_metrics_table(smu, &metrics);
if (ret)
return ret;