diff options
| author | Evan Quan <evan.quan@amd.com> | 2021-02-09 12:23:33 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-16 15:35:56 -0400 |
| commit | d9ca7567b864322b9fd13b0d29ed510b80bba2f0 (patch) | |
| tree | 9a239080ab9a7675c7c860a7d73c55723f1f6354 /drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | |
| parent | fb1f667e71c079defa5918b8f457faa48120b6f1 (diff) | |
| download | linux-d9ca7567b864322b9fd13b0d29ed510b80bba2f0.tar.bz2 | |
drm/amd/pm: correct the fan speed RPM retrieving
The relationship "PWM = RPM / smu->fan_max_rpm" between fan speed
PWM and RPM is not true for SMU11 ASICs. So, we need a new way to
retrieving the fan speed RPM.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c index cb60e89bab3e..a0fbd5678377 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c @@ -1354,6 +1354,22 @@ static bool sienna_cichlid_is_dpm_running(struct smu_context *smu) return !!(feature_enabled & SMC_DPM_FEATURE); } +static int sienna_cichlid_get_fan_speed_rpm(struct smu_context *smu, + uint32_t *speed) +{ + if (!speed) + return -EINVAL; + + /* + * For Sienna_Cichlid and later, the fan speed(rpm) reported + * by pmfw is always trustable(even when the fan control feature + * disabled or 0 RPM kicked in). + */ + return sienna_cichlid_get_smu_metrics_data(smu, + METRICS_CURR_FANSPEED, + speed); +} + static int sienna_cichlid_get_fan_parameters(struct smu_context *smu) { uint16_t *table_member; @@ -3837,6 +3853,7 @@ static const struct pptable_funcs sienna_cichlid_ppt_funcs = { .notify_smc_display_config = sienna_cichlid_notify_smc_display_config, .is_dpm_running = sienna_cichlid_is_dpm_running, .get_fan_speed_percent = smu_v11_0_get_fan_speed_percent, + .get_fan_speed_rpm = sienna_cichlid_get_fan_speed_rpm, .get_power_profile_mode = sienna_cichlid_get_power_profile_mode, .set_power_profile_mode = sienna_cichlid_set_power_profile_mode, .set_watermarks_table = sienna_cichlid_set_watermarks_table, |