From: Chengming Gui Date: Thu, 24 Jan 2019 10:39:04 +0000 (+0800) Subject: drm/amd/powerplay: implement pwm1 hwmon interface for SMU11 (v2) X-Git-Tag: v5.15~6416^2~31^2~217 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=008a9524cf6860dcd16780f50f738f3754c8b68a;p=mirror_ubuntu-kernels.git drm/amd/powerplay: implement pwm1 hwmon interface for SMU11 (v2) added main functions: get_fan_speed_percent set_fan_speed_percent. added dependent functions: smc_fan_control set_fan_static_mode get_fan_speed_percent v2: fix coding style issue Signed-off-by: Chengming Gui Reviewed-by: Huang Rui Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index c3508a7c8bfd..284d28acb8c1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -1444,8 +1444,10 @@ static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev, if ((adev->flags & AMD_IS_PX) && (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) return -EINVAL; - - pwm_mode = amdgpu_dpm_get_fan_control_mode(adev); + if (is_support_sw_smu(adev)) + pwm_mode = smu_get_fan_control_mode(&adev->smu); + else + pwm_mode = amdgpu_dpm_get_fan_control_mode(adev); if (pwm_mode != AMD_FAN_CTRL_MANUAL) { pr_info("manual fan speed control should be enabled first\n"); return -EINVAL; @@ -1457,7 +1459,11 @@ static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev, value = (value * 100) / 255; - if (adev->powerplay.pp_funcs->set_fan_speed_percent) { + if (is_support_sw_smu(adev)) { + err = smu_set_fan_speed_percent(&adev->smu, value); + if (err) + return err; + } else if (adev->powerplay.pp_funcs->set_fan_speed_percent) { err = amdgpu_dpm_set_fan_speed_percent(adev, value); if (err) return err; @@ -1479,7 +1485,11 @@ static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev, (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) return -EINVAL; - if (adev->powerplay.pp_funcs->get_fan_speed_percent) { + if (is_support_sw_smu(adev)) { + err = smu_get_fan_speed_percent(&adev->smu, &speed); + if (err) + return err; + } else if (adev->powerplay.pp_funcs->get_fan_speed_percent) { err = amdgpu_dpm_get_fan_speed_percent(adev, &speed); if (err) return err; diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h index d49bdee76f0e..f94d09db9305 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h @@ -532,6 +532,9 @@ struct smu_funcs uint32_t (*get_sclk)(struct smu_context *smu, bool low); uint32_t (*get_mclk)(struct smu_context *smu, bool low); int (*get_current_rpm)(struct smu_context *smu, uint32_t *speed); + uint32_t (*get_fan_control_mode)(struct smu_context *smu); + int (*get_fan_speed_percent)(struct smu_context *smu, uint32_t *speed); + int (*set_fan_speed_percent)(struct smu_context *smu, uint32_t speed); }; #define smu_init_microcode(smu) \ @@ -664,6 +667,12 @@ struct smu_funcs ((smu)->ppt_funcs->get_profiling_clk_mask ? (smu)->ppt_funcs->get_profiling_clk_mask((smu), (level), (sclk_mask), (mclk_mask), (soc_mask)) : 0) #define smu_set_cpu_power_state(smu) \ ((smu)->ppt_funcs->set_cpu_power_state ? (smu)->ppt_funcs->set_cpu_power_state((smu)) : 0) +#define smu_get_fan_control_mode(smu) \ + ((smu)->funcs->get_fan_control_mode ? (smu)->funcs->get_fan_control_mode((smu)) : 0) +#define smu_get_fan_speed_percent(smu, speed) \ + ((smu)->funcs->get_fan_speed_percent ? (smu)->funcs->get_fan_speed_percent((smu), (speed)) : 0) +#define smu_set_fan_speed_percent(smu, speed) \ + ((smu)->funcs->set_fan_speed_percent ? (smu)->funcs->set_fan_speed_percent((smu), (speed)) : 0) #define smu_msg_get_index(smu, msg) \ ((smu)->ppt_funcs? ((smu)->ppt_funcs->get_smu_msg_index? (smu)->ppt_funcs->get_smu_msg_index((smu), (msg)) : -EINVAL) : -EINVAL) diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c index aee8d27a5473..2eb5ad813ec8 100644 --- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c +++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c @@ -1748,6 +1748,92 @@ static int smu_v11_0_get_current_rpm(struct smu_context *smu, return 0; } +static uint32_t +smu_v11_0_get_fan_control_mode(struct smu_context *smu) +{ + if (!smu_feature_is_enabled(smu, FEATURE_FAN_CONTROL_BIT)) + return AMD_FAN_CTRL_MANUAL; + else + return AMD_FAN_CTRL_AUTO; +} + +static int +smu_v11_0_get_fan_speed_percent(struct smu_context *smu, + uint32_t *speed) +{ + int ret = 0; + uint32_t percent = 0; + uint32_t current_rpm; + PPTable_t *pptable = smu->smu_table.driver_pptable; + + ret = smu_v11_0_get_current_rpm(smu, ¤t_rpm); + percent = current_rpm * 100 / pptable->FanMaximumRpm; + *speed = percent > 100 ? 100 : percent; + + return ret; +} + +static int +smu_v11_0_smc_fan_control(struct smu_context *smu, bool start) +{ + int ret = 0; + + if (smu_feature_is_supported(smu, FEATURE_FAN_CONTROL_BIT)) + return 0; + + ret = smu_feature_set_enabled(smu, FEATURE_FAN_CONTROL_BIT, start); + if (ret) + pr_err("[%s]%s smc FAN CONTROL feature failed!", + __func__, (start ? "Start" : "Stop")); + + return ret; +} + +static int +smu_v11_0_set_fan_static_mode(struct smu_context *smu, uint32_t mode) +{ + struct amdgpu_device *adev = smu->adev; + + WREG32_SOC15(THM, 0, mmCG_FDO_CTRL2, + REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL2), + CG_FDO_CTRL2, TMIN, 0)); + WREG32_SOC15(THM, 0, mmCG_FDO_CTRL2, + REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL2), + CG_FDO_CTRL2, FDO_PWM_MODE, mode)); + + return 0; +} + +static int +smu_v11_0_set_fan_speed_percent(struct smu_context *smu, uint32_t speed) +{ + struct amdgpu_device *adev = smu->adev; + uint32_t duty100; + uint32_t duty; + uint64_t tmp64; + bool stop = 0; + + if (speed > 100) + speed = 100; + + if (smu_v11_0_smc_fan_control(smu, stop)) + return -EINVAL; + duty100 = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL1), + CG_FDO_CTRL1, FMAX_DUTY100); + if (!duty100) + return -EINVAL; + + tmp64 = (uint64_t)speed * duty100; + do_div(tmp64, 100); + duty = (uint32_t)tmp64; + + WREG32_SOC15(THM, 0, mmCG_FDO_CTRL0, + REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL0), + CG_FDO_CTRL0, FDO_STATIC_DUTY, duty)); + + return smu_v11_0_set_fan_static_mode(smu, FDO_PWM_MODE_STATIC); +} + static const struct smu_funcs smu_v11_0_funcs = { .init_microcode = smu_v11_0_init_microcode, .load_microcode = smu_v11_0_load_microcode, @@ -1799,6 +1885,9 @@ static const struct smu_funcs smu_v11_0_funcs = { .dpm_set_uvd_enable = smu_v11_0_dpm_set_uvd_enable, .dpm_set_vce_enable = smu_v11_0_dpm_set_vce_enable, .get_current_rpm = smu_v11_0_get_current_rpm, + .get_fan_control_mode = smu_v11_0_get_fan_control_mode, + .get_fan_speed_percent = smu_v11_0_get_fan_speed_percent, + .set_fan_speed_percent = smu_v11_0_set_fan_speed_percent, }; void smu_v11_0_set_smu_funcs(struct smu_context *smu)