On 7/7/2021 7:26 AM, Evan Quan wrote:
As the relationship "PWM = RPM / smu->fan_max_rpm" between fan speed
PWM and RPM is not true for SMU11 ASICs. So, both the RPM and PWM
settings need to be saved.
Change-Id: I318c134d442273d518b805339cdf383e151b935d
Signed-off-by: Evan Quan <[email protected]>
---
drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h | 8 ++++++++
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 20 +++++++++++++++-----
2 files changed, 23 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
index 6301e4cb3c2a..fa585f0be530 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
@@ -226,10 +226,18 @@ enum smu_memory_pool_size
SMU_MEMORY_POOL_SIZE_2_GB = 0x80000000,
};
+enum custom_fan_speed_mode
+{
+ SMU_CUSTOM_FAN_SPEED_RPM = 1 << 0,
+ SMU_CUSTOM_FAN_SPEED_PWM = 1 << 1,
+};
+
struct smu_user_dpm_profile {
uint32_t fan_mode;
uint32_t power_limit;
+ uint32_t custom_fan_speed;
Use the flags field to indicate if custom mode uses PWM or RPM, no need
to have a separate field.
Thanks,
Lijo
uint32_t fan_speed_percent;
+ uint32_t fan_speed_rpm;
uint32_t flags;
/* user clock state information */
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 576e9ea68fd1..9a25443988e3 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -414,6 +414,12 @@ static void smu_restore_dpm_user_profile(struct
smu_context *smu)
if (ret)
dev_err(smu->adev->dev, "Failed to set manual fan
speed\n");
}
+
+ if (!ret && smu->user_dpm_profile.fan_speed_rpm) {
+ ret = smu_set_fan_speed_rpm(smu,
smu->user_dpm_profile.fan_speed_rpm);
+ if (ret)
+ dev_err(smu->adev->dev, "Failed to set manual fan
speed\n");
+ }
}
/* Disable restore flag */
@@ -2166,7 +2172,6 @@ static int smu_set_gfx_cgpg(struct smu_context *smu, bool
enabled)
static int smu_set_fan_speed_rpm(void *handle, uint32_t speed)
{
struct smu_context *smu = handle;
- u32 percent;
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
@@ -2177,8 +2182,8 @@ static int smu_set_fan_speed_rpm(void *handle, uint32_t
speed)
if (smu->ppt_funcs->set_fan_speed_rpm) {
ret = smu->ppt_funcs->set_fan_speed_rpm(smu, speed);
if (!ret && smu->user_dpm_profile.flags &
SMU_DPM_USER_PROFILE_RESTORE) {
- percent = speed * 100 / smu->fan_max_rpm;
- smu->user_dpm_profile.fan_speed_percent = percent;
+ smu->user_dpm_profile.custom_fan_speed |=
SMU_CUSTOM_FAN_SPEED_RPM;
+ smu->user_dpm_profile.fan_speed_rpm = speed;
}
}
@@ -2539,8 +2544,11 @@ static int smu_set_fan_control_mode(struct smu_context *smu, int value)
/* reset user dpm fan speed */
if (!ret && value != AMD_FAN_CTRL_MANUAL &&
- !(smu->user_dpm_profile.flags &
SMU_DPM_USER_PROFILE_RESTORE))
+ !(smu->user_dpm_profile.flags &
SMU_DPM_USER_PROFILE_RESTORE)) {
smu->user_dpm_profile.fan_speed_percent = 0;
+ smu->user_dpm_profile.fan_speed_rpm = 0;
+ smu->user_dpm_profile.custom_fan_speed = 0;
+ }
return ret;
}
@@ -2591,8 +2599,10 @@ static int smu_set_fan_speed_percent(void *handle, u32
speed)
if (speed > 100)
speed = 100;
ret = smu->ppt_funcs->set_fan_speed_percent(smu, speed);
- if (!ret && !(smu->user_dpm_profile.flags &
SMU_DPM_USER_PROFILE_RESTORE))
+ if (!ret && !(smu->user_dpm_profile.flags &
SMU_DPM_USER_PROFILE_RESTORE)) {
+ smu->user_dpm_profile.custom_fan_speed |=
SMU_CUSTOM_FAN_SPEED_PWM;
smu->user_dpm_profile.fan_speed_percent = speed;
+ }
}
mutex_unlock(&smu->mutex);
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