This adds a possibility to control fan on CI parts
via exported hwmon variables. Note that automatic
ucode fan management pauses if you choose to enable
manual fan control
Signed-off-by: Oleg Chernovskiy <algonkvel at gmail.com>
---
drivers/gpu/drm/radeon/ci_dpm.c | 32 ++++++++++++++++++++++++--------
drivers/gpu/drm/radeon/radeon_asic.c | 4 ++++
drivers/gpu/drm/radeon/radeon_asic.h | 7 +++++++
3 files changed, 35 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index f373a81..cbba2b6 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -187,6 +187,8 @@ static int ci_update_uvd_dpm(struct radeon_device *rdev,
bool gate);
static PPSMC_Result ci_send_msg_to_smc_with_parameter(struct radeon_device
*rdev,
PPSMC_Msg msg, u32
parameter);
+static void ci_thermal_start_smc_fan_control(struct radeon_device *rdev);
+
static struct ci_power_info *ci_get_pi(struct radeon_device *rdev)
{
struct ci_power_info *pi = rdev->pm.dpm.priv;
@@ -1046,7 +1048,6 @@ static int ci_fan_ctrl_start_smc_fan_control(struct
radeon_device *rdev)
return 0;
}
-#if 0
static int ci_fan_ctrl_stop_smc_fan_control(struct radeon_device *rdev)
{
PPSMC_Result ret;
@@ -1058,7 +1059,7 @@ static int ci_fan_ctrl_stop_smc_fan_control(struct
radeon_device *rdev)
return -EINVAL;
}
-static int ci_fan_ctrl_get_fan_speed_percent(struct radeon_device *rdev,
+int ci_fan_ctrl_get_fan_speed_percent(struct radeon_device *rdev,
u32 *speed)
{
u32 duty, duty100;
@@ -1083,7 +1084,7 @@ static int ci_fan_ctrl_get_fan_speed_percent(struct
radeon_device *rdev,
return 0;
}
-static int ci_fan_ctrl_set_fan_speed_percent(struct radeon_device *rdev,
+int ci_fan_ctrl_set_fan_speed_percent(struct radeon_device *rdev,
u32 speed)
{
u32 tmp;
@@ -1096,9 +1097,6 @@ static int ci_fan_ctrl_set_fan_speed_percent(struct
radeon_device *rdev,
if (speed > 100)
return -EINVAL;
- if (rdev->pm.dpm.fan.ucode_fan_control)
- ci_fan_ctrl_stop_smc_fan_control(rdev);
-
duty100 = (RREG32_SMC(CG_FDO_CTRL1) & FMAX_DUTY100_MASK) >>
FMAX_DUTY100_SHIFT;
if (duty100 == 0)
@@ -1112,11 +1110,29 @@ static int ci_fan_ctrl_set_fan_speed_percent(struct
radeon_device *rdev,
tmp |= FDO_STATIC_DUTY(duty);
WREG32_SMC(CG_FDO_CTRL0, tmp);
- ci_fan_ctrl_set_static_mode(rdev, FDO_PWM_MODE_STATIC);
-
return 0;
}
+void ci_fan_ctrl_set_mode(struct radeon_device *rdev, u32 mode)
+{
+ if(mode) {
+ // stop auto-manage
+ if (rdev->pm.dpm.fan.ucode_fan_control)
+ ci_fan_ctrl_stop_smc_fan_control(rdev);
+ ci_fan_ctrl_set_static_mode(rdev, mode);
+ } else {
+ // restart auto-manage
+ ci_thermal_start_smc_fan_control(rdev);
+ }
+}
+
+u32 ci_fan_cntrl_get_mode(struct radeon_device *rdev)
+{
+ u32 tmp = RREG32_SMC(CG_FDO_CTRL2) & FDO_PWM_MODE_MASK;
+ return (tmp >> FDO_PWM_MODE_SHIFT);
+}
+
+#if 0
static int ci_fan_ctrl_get_fan_speed_rpm(struct radeon_device *rdev,
u32 *speed)
{
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c
b/drivers/gpu/drm/radeon/radeon_asic.c
index 850de57..d2c517c 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2104,6 +2104,10 @@ static struct radeon_asic ci_asic = {
.force_performance_level = &ci_dpm_force_performance_level,
.vblank_too_short = &ci_dpm_vblank_too_short,
.powergate_uvd = &ci_dpm_powergate_uvd,
+ .fan_ctrl_set_mode = &ci_fan_ctrl_set_mode,
+ .fan_ctrl_get_mode = &ci_fan_cntrl_get_mode,
+ .get_fan_speed_percent = &ci_fan_ctrl_get_fan_speed_percent,
+ .set_fan_speed_percent = &ci_fan_ctrl_set_fan_speed_percent,
},
.pflip = {
.page_flip = &evergreen_page_flip,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h
b/drivers/gpu/drm/radeon/radeon_asic.h
index 2a45d54..edd64dc 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -861,6 +861,13 @@ int ci_dpm_force_performance_level(struct radeon_device
*rdev,
bool ci_dpm_vblank_too_short(struct radeon_device *rdev);
void ci_dpm_powergate_uvd(struct radeon_device *rdev, bool gate);
+int ci_fan_ctrl_get_fan_speed_percent(struct radeon_device *rdev,
+ u32 *speed);
+int ci_fan_ctrl_set_fan_speed_percent(struct radeon_device *rdev,
+ u32 speed);
+u32 ci_fan_cntrl_get_mode(struct radeon_device *rdev);
+void ci_fan_ctrl_set_mode(struct radeon_device *rdev, u32 mode);
+
int kv_dpm_init(struct radeon_device *rdev);
int kv_dpm_enable(struct radeon_device *rdev);
int kv_dpm_late_enable(struct radeon_device *rdev);
--
2.1.3
