Add callbacks for fan speed fetching.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4034
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
.../drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c | 35 +++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
index 5cad09c5f2ff2..e4089fd58711c 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
@@ -1627,6 +1627,39 @@ static void smu_v14_0_2_get_unique_id(struct smu_context
*smu)
adev->unique_id = ((uint64_t)upper32 << 32) | lower32;
}
+static int smu_v14_0_2_get_fan_speed_pwm(struct smu_context *smu,
+ uint32_t *speed)
+{
+ int ret;
+
+ if (!speed)
+ return -EINVAL;
+
+ ret = smu_v14_0_2_get_smu_metrics_data(smu,
+ METRICS_CURR_FANPWM,
+ speed);
+ if (ret) {
+ dev_err(smu->adev->dev, "Failed to get fan speed(PWM)!");
+ return ret;
+ }
+
+ /* Convert the PMFW output which is in percent to pwm(255) based */
+ *speed = min(*speed * 255 / 100, (uint32_t)255);
+
+ return 0;
+}
+
+static int smu_v14_0_2_get_fan_speed_rpm(struct smu_context *smu,
+ uint32_t *speed)
+{
+ if (!speed)
+ return -EINVAL;
+
+ return smu_v14_0_2_get_smu_metrics_data(smu,
+ METRICS_CURR_FANSPEED,
+ speed);
+}
+
static int smu_v14_0_2_get_power_limit(struct smu_context *smu,
uint32_t *current_power_limit,
uint32_t *default_power_limit,
@@ -2804,6 +2837,8 @@ static const struct pptable_funcs smu_v14_0_2_ppt_funcs =
{
.set_performance_level = smu_v14_0_set_performance_level,
.gfx_off_control = smu_v14_0_gfx_off_control,
.get_unique_id = smu_v14_0_2_get_unique_id,
+ .get_fan_speed_pwm = smu_v14_0_2_get_fan_speed_pwm,
+ .get_fan_speed_rpm = smu_v14_0_2_get_fan_speed_rpm,
.get_power_limit = smu_v14_0_2_get_power_limit,
.set_power_limit = smu_v14_0_2_set_power_limit,
.get_power_profile_mode = smu_v14_0_2_get_power_profile_mode,
--
2.48.1
