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authorRex Zhu <Rex.Zhu@amd.com>2018-09-20 14:30:55 +0800
committerAlex Deucher <alexander.deucher@amd.com>2018-10-09 17:04:59 -0500
commitc2870527f700e919fbb543baef36032be5d626e0 (patch)
treef996053555b057b64705719f88cb5c12c66333dd /drivers/gpu/drm/amd/powerplay
parentd5f480372ca485806443afca50ef024623f8eb03 (diff)
drm/amdgpu: Add fan RPM setting via sysfs
Add fan1_target for get/set fan speed in RPM unit Add fan1_min/fan1_max for get min, max fan speed in RPM unit Add fan1_enable to enable/disable the fan1 sensor v3: drop the hardcode value of min/max rpm in comments pointed out by Alex. v2: query the min/max rpm gpu support instand of hardcode value. Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay')
-rw-r--r--drivers/gpu/drm/amd/powerplay/amd_powerplay.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 053c485baed0..9d8fa2e39bad 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -576,6 +576,24 @@ static int pp_dpm_get_fan_speed_rpm(void *handle, uint32_t *rpm)
return ret;
}
+static int pp_dpm_set_fan_speed_rpm(void *handle, uint32_t rpm)
+{
+ struct pp_hwmgr *hwmgr = handle;
+ int ret = 0;
+
+ if (!hwmgr || !hwmgr->pm_en)
+ return -EINVAL;
+
+ if (hwmgr->hwmgr_func->set_fan_speed_rpm == NULL) {
+ pr_info("%s was not implemented.\n", __func__);
+ return 0;
+ }
+ mutex_lock(&hwmgr->smu_lock);
+ ret = hwmgr->hwmgr_func->set_fan_speed_rpm(hwmgr, rpm);
+ mutex_unlock(&hwmgr->smu_lock);
+ return ret;
+}
+
static int pp_dpm_get_pp_num_states(void *handle,
struct pp_states_info *data)
{
@@ -1297,6 +1315,7 @@ static const struct amd_pm_funcs pp_dpm_funcs = {
.set_fan_speed_percent = pp_dpm_set_fan_speed_percent,
.get_fan_speed_percent = pp_dpm_get_fan_speed_percent,
.get_fan_speed_rpm = pp_dpm_get_fan_speed_rpm,
+ .set_fan_speed_rpm = pp_dpm_set_fan_speed_rpm,
.get_pp_num_states = pp_dpm_get_pp_num_states,
.get_pp_table = pp_dpm_get_pp_table,
.set_pp_table = pp_dpm_set_pp_table,