Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+35
+35
drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
+35
drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
···
1627
1627
adev->unique_id = ((uint64_t)upper32 << 32) | lower32;
1628
1628
}
1629
1629
1630
+
static int smu_v14_0_2_get_fan_speed_pwm(struct smu_context *smu,
1631
+
uint32_t *speed)
1632
+
{
1633
+
int ret;
1634
+
1635
+
if (!speed)
1636
+
return -EINVAL;
1637
+
1638
+
ret = smu_v14_0_2_get_smu_metrics_data(smu,
1639
+
METRICS_CURR_FANPWM,
1640
+
speed);
1641
+
if (ret) {
1642
+
dev_err(smu->adev->dev, "Failed to get fan speed(PWM)!");
1643
+
return ret;
1644
+
}
1645
+
1646
+
/* Convert the PMFW output which is in percent to pwm(255) based */
1647
+
*speed = min(*speed * 255 / 100, (uint32_t)255);
1648
+
1649
+
return 0;
1650
+
}
1651
+
1652
+
static int smu_v14_0_2_get_fan_speed_rpm(struct smu_context *smu,
1653
+
uint32_t *speed)
1654
+
{
1655
+
if (!speed)
1656
+
return -EINVAL;
1657
+
1658
+
return smu_v14_0_2_get_smu_metrics_data(smu,
1659
+
METRICS_CURR_FANSPEED,
1660
+
speed);
1661
+
}
1662
+
1630
1663
static int smu_v14_0_2_get_power_limit(struct smu_context *smu,
1631
1664
uint32_t *current_power_limit,
1632
1665
uint32_t *default_power_limit,
···
2837
2804
.set_performance_level = smu_v14_0_set_performance_level,
2838
2805
.gfx_off_control = smu_v14_0_gfx_off_control,
2839
2806
.get_unique_id = smu_v14_0_2_get_unique_id,
2807
+
.get_fan_speed_pwm = smu_v14_0_2_get_fan_speed_pwm,
2808
+
.get_fan_speed_rpm = smu_v14_0_2_get_fan_speed_rpm,
2840
2809
.get_power_limit = smu_v14_0_2_get_power_limit,
2841
2810
.set_power_limit = smu_v14_0_2_set_power_limit,
2842
2811
.get_power_profile_mode = smu_v14_0_2_get_power_profile_mode,