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drm/amd/powerplay: support fan speed retrieval on arcturus 

Support arcturus fan speed retrieval.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2019-07-22 12:09:38 +08:00 committed by Alex Deucher
parent 631807f091
commit d427cf8f7f
1 changed files with 40 additions and 0 deletions
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40
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
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@ -994,6 +994,44 @@ static int arcturus_read_sensor(struct smu_context *smu,
return ret;
}
static int arcturus_get_fan_speed_rpm(struct smu_context *smu,
uint32_t *speed)
{
SmuMetrics_t metrics;
int ret = 0;
if (!speed)
return -EINVAL;
ret = arcturus_get_metrics_table(smu, &metrics);
if (ret)
return ret;
*speed = metrics.CurrFanSpeed;
return ret;
}
static int arcturus_get_fan_speed_percent(struct smu_context *smu,
uint32_t *speed)
{
PPTable_t *pptable = smu->smu_table.driver_pptable;
uint32_t percent, current_rpm;
int ret = 0;
if (!speed)
return -EINVAL;
ret = arcturus_get_fan_speed_rpm(smu, &current_rpm);
if (ret)
return ret;
percent = current_rpm * 100 / pptable->FanMaximumRpm;
*speed = percent > 100 ? 100 : percent;
return ret;
}
static int arcturus_get_current_clk_freq_by_table(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t *value)
@ -1475,6 +1513,8 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
.print_clk_levels = arcturus_print_clk_levels,
.force_clk_levels = arcturus_force_clk_levels,
.read_sensor = arcturus_read_sensor,
.get_fan_speed_percent = arcturus_get_fan_speed_percent,
.get_fan_speed_rpm = arcturus_get_fan_speed_rpm,
/* debug (internal used) */
.dump_pptable = arcturus_dump_pptable,
};