Commit 5ca0040e authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/pm: wire up hwmon fan speed for smu 14.0.2 

Add callbacks for fan speed fetching.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4034


Reviewed-by: default avatarKenneth Feng <kenneth.feng@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 90df6db6)
Cc: stable@vger.kernel.org # 6.12.x
parent 19b53f96

drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c

+35 −0
Original line number Diff line number Diff line
@@ -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,