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]> -- v1->v2: - coding style and logging prints optimization (Guchun) - reuse existing flags (Lijo) v2->v3: - disallow fan speed setting via PWM and RPM at the same time (Lijo) --- drivers/gpu/drm/amd/pm/amdgpu_pm.c | 3 +++ drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h | 3 +++ drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 30 ++++++++++++++++++----- 3 files changed, 30 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c index 04c7d82f8b89..112ee5f5d855 100644 --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c @@ -3174,6 +3174,9 @@ static ssize_t amdgpu_hwmon_show_mclk_label(struct device *dev, * * - fan[1-\*]_enable: Enable or disable the sensors.1: Enable 0: Disable * + * NOTE: DO NOT set the fan speed via "pwm1" and "fan[1-\*]_target" interfaces at the same time. + * That will get the former one overridden. + * * hwmon interfaces for GPU clocks: * * - freq1_input: the gfx/compute clock in hertz diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h index 183654f8b564..29934a5af44e 100644 --- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h @@ -34,6 +34,8 @@ #define SMU_FW_NAME_LEN 0x24 #define SMU_DPM_USER_PROFILE_RESTORE (1 << 0) +#define SMU_CUSTOM_FAN_SPEED_RPM (1 << 1) +#define SMU_CUSTOM_FAN_SPEED_PWM (1 << 2) // Power Throttlers #define SMU_THROTTLER_PPT0_BIT 0 @@ -230,6 +232,7 @@ struct smu_user_dpm_profile { uint32_t fan_mode; uint32_t power_limit; uint32_t fan_speed_percent; + uint32_t fan_speed_rpm; uint32_t flags; uint32_t user_od; diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index e33e67310030..39390bbb79e8 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -413,7 +413,13 @@ static void smu_restore_dpm_user_profile(struct smu_context *smu) if (!ret && smu->user_dpm_profile.fan_speed_percent) { ret = smu_set_fan_speed_percent(smu, smu->user_dpm_profile.fan_speed_percent); if (ret) - dev_err(smu->adev->dev, "Failed to set manual fan speed\n"); + dev_err(smu->adev->dev, "Failed to set manual fan speed in percent\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 in rpm\n"); } } @@ -2179,7 +2185,6 @@ 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) @@ -2190,8 +2195,12 @@ 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.flags |= SMU_CUSTOM_FAN_SPEED_RPM; + smu->user_dpm_profile.fan_speed_rpm = speed; + + /* Override custom PWM setting as they cannot co-exist */ + smu->user_dpm_profile.flags &= ~SMU_CUSTOM_FAN_SPEED_PWM; + smu->user_dpm_profile.fan_speed_percent = 0; } } @@ -2552,8 +2561,11 @@ 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.flags &= ~(SMU_CUSTOM_FAN_SPEED_RPM | SMU_CUSTOM_FAN_SPEED_PWM); + } return ret; } @@ -2604,8 +2616,14 @@ 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.flags |= SMU_CUSTOM_FAN_SPEED_PWM; smu->user_dpm_profile.fan_speed_percent = speed; + + /* Override custom RPM setting as they cannot co-exist */ + smu->user_dpm_profile.flags &= ~SMU_CUSTOM_FAN_SPEED_RPM; + smu->user_dpm_profile.fan_speed_rpm = 0; + } } mutex_unlock(&smu->mutex); -- 2.29.0
