diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 721 |
1 files changed, 676 insertions, 45 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 788c64cb4b47..f374c467aaca 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -388,7 +388,8 @@ static ssize_t radeon_get_pm_method(struct device *dev, int pm = rdev->pm.pm_method; return snprintf(buf, PAGE_SIZE, "%s\n", - (pm == PM_METHOD_DYNPM) ? "dynpm" : "profile"); + (pm == PM_METHOD_DYNPM) ? "dynpm" : + (pm == PM_METHOD_PROFILE) ? "profile" : "dpm"); } static ssize_t radeon_set_pm_method(struct device *dev, @@ -399,6 +400,11 @@ static ssize_t radeon_set_pm_method(struct device *dev, struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); struct radeon_device *rdev = ddev->dev_private; + /* we don't support the legacy modes with dpm */ + if (rdev->pm.pm_method == PM_METHOD_DPM) { + count = -EINVAL; + goto fail; + } if (strncmp("dynpm", buf, strlen("dynpm")) == 0) { mutex_lock(&rdev->pm.mutex); @@ -423,8 +429,96 @@ fail: return count; } +static ssize_t radeon_get_dpm_state(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct radeon_device *rdev = ddev->dev_private; + enum radeon_pm_state_type pm = rdev->pm.dpm.user_state; + + return snprintf(buf, PAGE_SIZE, "%s\n", + (pm == POWER_STATE_TYPE_BATTERY) ? "battery" : + (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance"); +} + +static ssize_t radeon_set_dpm_state(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct radeon_device *rdev = ddev->dev_private; + + mutex_lock(&rdev->pm.mutex); + if (strncmp("battery", buf, strlen("battery")) == 0) + rdev->pm.dpm.user_state = POWER_STATE_TYPE_BATTERY; + else if (strncmp("balanced", buf, strlen("balanced")) == 0) + rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED; + else if (strncmp("performance", buf, strlen("performance")) == 0) + rdev->pm.dpm.user_state = POWER_STATE_TYPE_PERFORMANCE; + else { + mutex_unlock(&rdev->pm.mutex); + count = -EINVAL; + goto fail; + } + mutex_unlock(&rdev->pm.mutex); + radeon_pm_compute_clocks(rdev); +fail: + return count; +} + +static ssize_t radeon_get_dpm_forced_performance_level(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct radeon_device *rdev = ddev->dev_private; + enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level; + + return snprintf(buf, PAGE_SIZE, "%s\n", + (level == RADEON_DPM_FORCED_LEVEL_AUTO) ? "auto" : + (level == RADEON_DPM_FORCED_LEVEL_LOW) ? "low" : "high"); +} + +static ssize_t radeon_set_dpm_forced_performance_level(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct radeon_device *rdev = ddev->dev_private; + enum radeon_dpm_forced_level level; + int ret = 0; + + mutex_lock(&rdev->pm.mutex); + if (strncmp("low", buf, strlen("low")) == 0) { + level = RADEON_DPM_FORCED_LEVEL_LOW; + } else if (strncmp("high", buf, strlen("high")) == 0) { + level = RADEON_DPM_FORCED_LEVEL_HIGH; + } else if (strncmp("auto", buf, strlen("auto")) == 0) { + level = RADEON_DPM_FORCED_LEVEL_AUTO; + } else { + mutex_unlock(&rdev->pm.mutex); + count = -EINVAL; + goto fail; + } + if (rdev->asic->dpm.force_performance_level) { + ret = radeon_dpm_force_performance_level(rdev, level); + if (ret) + count = -EINVAL; + } + mutex_unlock(&rdev->pm.mutex); +fail: + return count; +} + static DEVICE_ATTR(power_profile, S_IRUGO | S_IWUSR, radeon_get_pm_profile, radeon_set_pm_profile); static DEVICE_ATTR(power_method, S_IRUGO | S_IWUSR, radeon_get_pm_method, radeon_set_pm_method); +static DEVICE_ATTR(power_dpm_state, S_IRUGO | S_IWUSR, radeon_get_dpm_state, radeon_set_dpm_state); +static DEVICE_ATTR(power_dpm_force_performance_level, S_IRUGO | S_IWUSR, + radeon_get_dpm_forced_performance_level, + radeon_set_dpm_forced_performance_level); static ssize_t radeon_hwmon_show_temp(struct device *dev, struct device_attribute *attr, @@ -434,27 +528,10 @@ static ssize_t radeon_hwmon_show_temp(struct device *dev, struct radeon_device *rdev = ddev->dev_private; int temp; - switch (rdev->pm.int_thermal_type) { - case THERMAL_TYPE_RV6XX: - temp = rv6xx_get_temp(rdev); - break; - case THERMAL_TYPE_RV770: - temp = rv770_get_temp(rdev); - break; - case THERMAL_TYPE_EVERGREEN: - case THERMAL_TYPE_NI: - temp = evergreen_get_temp(rdev); - break; - case THERMAL_TYPE_SUMO: - temp = sumo_get_temp(rdev); - break; - case THERMAL_TYPE_SI: - temp = si_get_temp(rdev); - break; - default: + if (rdev->asic->pm.get_temperature) + temp = radeon_get_temperature(rdev); + else temp = 0; - break; - } return snprintf(buf, PAGE_SIZE, "%d\n", temp); } @@ -492,8 +569,7 @@ static int radeon_hwmon_init(struct radeon_device *rdev) case THERMAL_TYPE_NI: case THERMAL_TYPE_SUMO: case THERMAL_TYPE_SI: - /* No support for TN yet */ - if (rdev->family == CHIP_ARUBA) + if (rdev->asic->pm.get_temperature == NULL) return err; rdev->pm.int_hwmon_dev = hwmon_device_register(rdev->dev); if (IS_ERR(rdev->pm.int_hwmon_dev)) { @@ -526,7 +602,289 @@ static void radeon_hwmon_fini(struct radeon_device *rdev) } } -void radeon_pm_suspend(struct radeon_device *rdev) +static void radeon_dpm_thermal_work_handler(struct work_struct *work) +{ + struct radeon_device *rdev = + container_of(work, struct radeon_device, + pm.dpm.thermal.work); + /* switch to the thermal state */ + enum radeon_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL; + + if (!rdev->pm.dpm_enabled) + return; + + if (rdev->asic->pm.get_temperature) { + int temp = radeon_get_temperature(rdev); + + if (temp < rdev->pm.dpm.thermal.min_temp) + /* switch back the user state */ + dpm_state = rdev->pm.dpm.user_state; + } else { + if (rdev->pm.dpm.thermal.high_to_low) + /* switch back the user state */ + dpm_state = rdev->pm.dpm.user_state; + } + radeon_dpm_enable_power_state(rdev, dpm_state); +} + +static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device *rdev, + enum radeon_pm_state_type dpm_state) +{ + int i; + struct radeon_ps *ps; + u32 ui_class; + bool single_display = (rdev->pm.dpm.new_active_crtc_count < 2) ? + true : false; + + /* check if the vblank period is too short to adjust the mclk */ + if (single_display && rdev->asic->dpm.vblank_too_short) { + if (radeon_dpm_vblank_too_short(rdev)) + single_display = false; + } + + /* certain older asics have a separare 3D performance state, + * so try that first if the user selected performance + */ + if (dpm_state == POWER_STATE_TYPE_PERFORMANCE) + dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF; + /* balanced states don't exist at the moment */ + if (dpm_state == POWER_STATE_TYPE_BALANCED) + dpm_state = POWER_STATE_TYPE_PERFORMANCE; + +restart_search: + /* Pick the best power state based on current conditions */ + for (i = 0; i < rdev->pm.dpm.num_ps; i++) { + ps = &rdev->pm.dpm.ps[i]; + ui_class = ps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK; + switch (dpm_state) { + /* user states */ + case POWER_STATE_TYPE_BATTERY: + if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) { + if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { + if (single_display) + return ps; + } else + return ps; + } + break; + case POWER_STATE_TYPE_BALANCED: + if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BALANCED) { + if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { + if (single_display) + return ps; + } else + return ps; + } + break; + case POWER_STATE_TYPE_PERFORMANCE: + if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) { + if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { + if (single_display) + return ps; + } else + return ps; + } + break; + /* internal states */ + case POWER_STATE_TYPE_INTERNAL_UVD: + return rdev->pm.dpm.uvd_ps; + case POWER_STATE_TYPE_INTERNAL_UVD_SD: + if (ps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE) + return ps; + break; + case POWER_STATE_TYPE_INTERNAL_UVD_HD: + if (ps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE) + return ps; + break; + case POWER_STATE_TYPE_INTERNAL_UVD_HD2: + if (ps->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE) + return ps; + break; + case POWER_STATE_TYPE_INTERNAL_UVD_MVC: + if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC) + return ps; + break; + case POWER_STATE_TYPE_INTERNAL_BOOT: + return rdev->pm.dpm.boot_ps; + case POWER_STATE_TYPE_INTERNAL_THERMAL: + if (ps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL) + return ps; + break; + case POWER_STATE_TYPE_INTERNAL_ACPI: + if (ps->class & ATOM_PPLIB_CLASSIFICATION_ACPI) + return ps; + break; + case POWER_STATE_TYPE_INTERNAL_ULV: + if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV) + return ps; + break; + case POWER_STATE_TYPE_INTERNAL_3DPERF: + if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE) + return ps; + break; + default: + break; + } + } + /* use a fallback state if we didn't match */ + switch (dpm_state) { + case POWER_STATE_TYPE_INTERNAL_UVD_SD: + case POWER_STATE_TYPE_INTERNAL_UVD_HD: + case POWER_STATE_TYPE_INTERNAL_UVD_HD2: + case POWER_STATE_TYPE_INTERNAL_UVD_MVC: + return rdev->pm.dpm.uvd_ps; + case POWER_STATE_TYPE_INTERNAL_THERMAL: + dpm_state = POWER_STATE_TYPE_INTERNAL_ACPI; + goto restart_search; + case POWER_STATE_TYPE_INTERNAL_ACPI: + dpm_state = POWER_STATE_TYPE_BATTERY; + goto restart_search; + case POWER_STATE_TYPE_BATTERY: + case POWER_STATE_TYPE_BALANCED: + case POWER_STATE_TYPE_INTERNAL_3DPERF: + dpm_state = POWER_STATE_TYPE_PERFORMANCE; + goto restart_search; + default: + break; + } + + return NULL; +} + +static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev) +{ + int i; + struct radeon_ps *ps; + enum radeon_pm_state_type dpm_state; + int ret; + + /* if dpm init failed */ + if (!rdev->pm.dpm_enabled) + return; + + if (rdev->pm.dpm.user_state != rdev->pm.dpm.state) { + /* add other state override checks here */ + if ((!rdev->pm.dpm.thermal_active) && + (!rdev->pm.dpm.uvd_active)) + rdev->pm.dpm.state = rdev->pm.dpm.user_state; + } + dpm_state = rdev->pm.dpm.state; + + ps = radeon_dpm_pick_power_state(rdev, dpm_state); + if (ps) + rdev->pm.dpm.requested_ps = ps; + else + return; + + /* no need to reprogram if nothing changed unless we are on BTC+ */ + if (rdev->pm.dpm.current_ps == rdev->pm.dpm.requested_ps) { + if ((rdev->family < CHIP_BARTS) || (rdev->flags & RADEON_IS_IGP)) { + /* for pre-BTC and APUs if the num crtcs changed but state is the same, + * all we need to do is update the display configuration. + */ + if (rdev->pm.dpm.new_active_crtcs != rdev->pm.dpm.current_active_crtcs) { + /* update display watermarks based on new power state */ + radeon_bandwidth_update(rdev); + /* update displays */ + radeon_dpm_display_configuration_changed(rdev); + rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs; + rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count; + } + return; + } else { + /* for BTC+ if the num crtcs hasn't changed and state is the same, + * nothing to do, if the num crtcs is > 1 and state is the same, + * update display configuration. + */ + if (rdev->pm.dpm.new_active_crtcs == + rdev->pm.dpm.current_active_crtcs) { + return; + } else { + if ((rdev->pm.dpm.current_active_crtc_count > 1) && + (rdev->pm.dpm.new_active_crtc_count > 1)) { + /* update display watermarks based on new power state */ + radeon_bandwidth_update(rdev); + /* update displays */ + radeon_dpm_display_configuration_changed(rdev); + rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs; + rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count; + return; + } + } + } + } + + printk("switching from power state:\n"); + radeon_dpm_print_power_state(rdev, rdev->pm.dpm.current_ps); + printk("switching to power state:\n"); + radeon_dpm_print_power_state(rdev, rdev->pm.dpm.requested_ps); + + mutex_lock(&rdev->ddev->struct_mutex); + down_write(&rdev->pm.mclk_lock); + mutex_lock(&rdev->ring_lock); + + ret = radeon_dpm_pre_set_power_state(rdev); + if (ret) + goto done; + + /* update display watermarks based on new power state */ + radeon_bandwidth_update(rdev); + /* update displays */ + radeon_dpm_display_configuration_changed(rdev); + + rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs; + rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count; + + /* wait for the rings to drain */ + for (i = 0; i < RADEON_NUM_RINGS; i++) { + struct radeon_ring *ring = &rdev->ring[i]; + if (ring->ready) + radeon_fence_wait_empty_locked(rdev, i); + } + + /* program the new power state */ + radeon_dpm_set_power_state(rdev); + + /* update current power state */ + rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps; + + radeon_dpm_post_set_power_state(rdev); + +done: + mutex_unlock(&rdev->ring_lock); + up_write(&rdev->pm.mclk_lock); + mutex_unlock(&rdev->ddev->struct_mutex); +} + +void radeon_dpm_enable_power_state(struct radeon_device *rdev, + enum radeon_pm_state_type dpm_state) +{ + if (!rdev->pm.dpm_enabled) + return; + + mutex_lock(&rdev->pm.mutex); + switch (dpm_state) { + case POWER_STATE_TYPE_INTERNAL_THERMAL: + rdev->pm.dpm.thermal_active = true; + break; + case POWER_STATE_TYPE_INTERNAL_UVD: + case POWER_STATE_TYPE_INTERNAL_UVD_SD: + case POWER_STATE_TYPE_INTERNAL_UVD_HD: + case POWER_STATE_TYPE_INTERNAL_UVD_HD2: + case POWER_STATE_TYPE_INTERNAL_UVD_MVC: + rdev->pm.dpm.uvd_active = true; + break; + default: + rdev->pm.dpm.thermal_active = false; + rdev->pm.dpm.uvd_active = false; + break; + } + rdev->pm.dpm.state = dpm_state; + mutex_unlock(&rdev->pm.mutex); + radeon_pm_compute_clocks(rdev); +} + +static void radeon_pm_suspend_old(struct radeon_device *rdev) { mutex_lock(&rdev->pm.mutex); if (rdev->pm.pm_method == PM_METHOD_DYNPM) { @@ -538,11 +896,30 @@ void radeon_pm_suspend(struct radeon_device *rdev) cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work); } -void radeon_pm_resume(struct radeon_device *rdev) +static void radeon_pm_suspend_dpm(struct radeon_device *rdev) +{ + mutex_lock(&rdev->pm.mutex); + /* disable dpm */ + radeon_dpm_disable(rdev); + /* reset the power state */ + rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps; + rdev->pm.dpm_enabled = false; + mutex_unlock(&rdev->pm.mutex); +} + +void radeon_pm_suspend(struct radeon_device *rdev) +{ + if (rdev->pm.pm_method == PM_METHOD_DPM) + radeon_pm_suspend_dpm(rdev); + else + radeon_pm_suspend_old(rdev); +} + +static void radeon_pm_resume_old(struct radeon_device *rdev) { /* set up the default clocks if the MC ucode is loaded */ if ((rdev->family >= CHIP_BARTS) && - (rdev->family <= CHIP_CAYMAN) && + (rdev->family <= CHIP_HAINAN) && rdev->mc_fw) { if (rdev->pm.default_vddc) radeon_atom_set_voltage(rdev, rdev->pm.default_vddc, @@ -573,12 +950,50 @@ void radeon_pm_resume(struct radeon_device *rdev) radeon_pm_compute_clocks(rdev); } -int radeon_pm_init(struct radeon_device *rdev) +static void radeon_pm_resume_dpm(struct radeon_device *rdev) +{ + int ret; + + /* asic init will reset to the boot state */ + mutex_lock(&rdev->pm.mutex); + rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps; + radeon_dpm_setup_asic(rdev); + ret = radeon_dpm_enable(rdev); + mutex_unlock(&rdev->pm.mutex); + if (ret) { + DRM_ERROR("radeon: dpm resume failed\n"); + if ((rdev->family >= CHIP_BARTS) && + (rdev->family <= CHIP_HAINAN) && + rdev->mc_fw) { + if (rdev->pm.default_vddc) + radeon_atom_set_voltage(rdev, rdev->pm.default_vddc, + SET_VOLTAGE_TYPE_ASIC_VDDC); + if (rdev->pm.default_vddci) + radeon_atom_set_voltage(rdev, rdev->pm.default_vddci, + SET_VOLTAGE_TYPE_ASIC_VDDCI); + if (rdev->pm.default_sclk) + radeon_set_engine_clock(rdev, rdev->pm.default_sclk); + if (rdev->pm.default_mclk) + radeon_set_memory_clock(rdev, rdev->pm.default_mclk); + } + } else { + rdev->pm.dpm_enabled = true; + radeon_pm_compute_clocks(rdev); + } +} + +void radeon_pm_resume(struct radeon_device *rdev) +{ + if (rdev->pm.pm_method == PM_METHOD_DPM) + radeon_pm_resume_dpm(rdev); + else + radeon_pm_resume_old(rdev); +} + +static int radeon_pm_init_old(struct radeon_device *rdev) { int ret; - /* default to profile method */ - rdev->pm.pm_method = PM_METHOD_PROFILE; rdev->pm.profile = PM_PROFILE_DEFAULT; rdev->pm.dynpm_state = DYNPM_STATE_DISABLED; rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE; @@ -599,7 +1014,7 @@ int radeon_pm_init(struct radeon_device *rdev) radeon_pm_init_profile(rdev); /* set up the default clocks if the MC ucode is loaded */ if ((rdev->family >= CHIP_BARTS) && - (rdev->family <= CHIP_CAYMAN) && + (rdev->family <= CHIP_HAINAN) && rdev->mc_fw) { if (rdev->pm.default_vddc) radeon_atom_set_voltage(rdev, rdev->pm.default_vddc, @@ -640,7 +1055,145 @@ int radeon_pm_init(struct radeon_device *rdev) return 0; } -void radeon_pm_fini(struct radeon_device *rdev) +static void radeon_dpm_print_power_states(struct radeon_device *rdev) +{ + int i; + + for (i = 0; i < rdev->pm.dpm.num_ps; i++) { + printk("== power state %d ==\n", i); + radeon_dpm_print_power_state(rdev, &rdev->pm.dpm.ps[i]); + } +} + +static int radeon_pm_init_dpm(struct radeon_device *rdev) +{ + int ret; + + /* default to performance state */ + rdev->pm.dpm.state = POWER_STATE_TYPE_BALANCED; + rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED; + rdev->pm.default_sclk = rdev->clock.default_sclk; + rdev->pm.default_mclk = rdev->clock.default_mclk; + rdev->pm.current_sclk = rdev->clock.default_sclk; + rdev->pm.current_mclk = rdev->clock.default_mclk; + rdev->pm.int_thermal_type = THERMAL_TYPE_NONE; + + if (rdev->bios && rdev->is_atom_bios) + radeon_atombios_get_power_modes(rdev); + else + return -EINVAL; + + /* set up the internal thermal sensor if applicable */ + ret = radeon_hwmon_init(rdev); + if (ret) + return ret; + + INIT_WORK(&rdev->pm.dpm.thermal.work, radeon_dpm_thermal_work_handler); + mutex_lock(&rdev->pm.mutex); + radeon_dpm_init(rdev); + rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps; + radeon_dpm_print_power_states(rdev); + radeon_dpm_setup_asic(rdev); + ret = radeon_dpm_enable(rdev); + mutex_unlock(&rdev->pm.mutex); + if (ret) { + rdev->pm.dpm_enabled = false; + if ((rdev->family >= CHIP_BARTS) && + (rdev->family <= CHIP_HAINAN) && + rdev->mc_fw) { + if (rdev->pm.default_vddc) + radeon_atom_set_voltage(rdev, rdev->pm.default_vddc, + SET_VOLTAGE_TYPE_ASIC_VDDC); + if (rdev->pm.default_vddci) + radeon_atom_set_voltage(rdev, rdev->pm.default_vddci, + SET_VOLTAGE_TYPE_ASIC_VDDCI); + if (rdev->pm.default_sclk) + radeon_set_engine_clock(rdev, rdev->pm.default_sclk); + if (rdev->pm.default_mclk) + radeon_set_memory_clock(rdev, rdev->pm.default_mclk); + } + DRM_ERROR("radeon: dpm initialization failed\n"); + return ret; + } + rdev->pm.dpm_enabled = true; + radeon_pm_compute_clocks(rdev); + + if (rdev->pm.num_power_states > 1) { + ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state); + if (ret) + DRM_ERROR("failed to create device file for dpm state\n"); + ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level); + if (ret) + DRM_ERROR("failed to create device file for dpm state\n"); + /* XXX: these are noops for dpm but are here for backwards compat */ + ret = device_create_file(rdev->dev, &dev_attr_power_profile); + if (ret) + DRM_ERROR("failed to create device file for power profile\n"); + ret = device_create_file(rdev->dev, &dev_attr_power_method); + if (ret) + DRM_ERROR("failed to create device file for power method\n"); + + if (radeon_debugfs_pm_init(rdev)) { + DRM_ERROR("Failed to register debugfs file for dpm!\n"); + } + + DRM_INFO("radeon: dpm initialized\n"); + } + + return 0; +} + +int radeon_pm_init(struct radeon_device *rdev) +{ + /* enable dpm on rv6xx+ */ + switch (rdev->family) { + case CHIP_RV610: + case CHIP_RV630: + case CHIP_RV620: + case CHIP_RV635: + case CHIP_RV670: + case CHIP_RS780: + case CHIP_RS880: + case CHIP_RV770: + case CHIP_RV730: + case CHIP_RV710: + case CHIP_RV740: + case CHIP_CEDAR: + case CHIP_REDWOOD: + case CHIP_JUNIPER: + case CHIP_CYPRESS: + case CHIP_HEMLOCK: + case CHIP_PALM: + case CHIP_SUMO: + case CHIP_SUMO2: + case CHIP_BARTS: + case CHIP_TURKS: + case CHIP_CAICOS: + case CHIP_CAYMAN: + case CHIP_ARUBA: + case CHIP_TAHITI: + case CHIP_PITCAIRN: + case CHIP_VERDE: + case CHIP_OLAND: + case CHIP_HAINAN: + if (radeon_dpm == 1) + rdev->pm.pm_method = PM_METHOD_DPM; + else + rdev->pm.pm_method = PM_METHOD_PROFILE; + break; + default: + /* default to profile method */ + rdev->pm.pm_method = PM_METHOD_PROFILE; + break; + } + + if (rdev->pm.pm_method == PM_METHOD_DPM) + return radeon_pm_init_dpm(rdev); + else + return radeon_pm_init_old(rdev); +} + +static void radeon_pm_fini_old(struct radeon_device *rdev) { if (rdev->pm.num_power_states > 1) { mutex_lock(&rdev->pm.mutex); @@ -668,7 +1221,36 @@ void radeon_pm_fini(struct radeon_device *rdev) radeon_hwmon_fini(rdev); } -void radeon_pm_compute_clocks(struct radeon_device *rdev) +static void radeon_pm_fini_dpm(struct radeon_device *rdev) +{ + if (rdev->pm.num_power_states > 1) { + mutex_lock(&rdev->pm.mutex); + radeon_dpm_disable(rdev); + mutex_unlock(&rdev->pm.mutex); + + device_remove_file(rdev->dev, &dev_attr_power_dpm_state); + device_remove_file(rdev->dev, &dev_attr_power_dpm_force_performance_level); + /* XXX backwards compat */ + device_remove_file(rdev->dev, &dev_attr_power_profile); + device_remove_file(rdev->dev, &dev_attr_power_method); + } + radeon_dpm_fini(rdev); + + if (rdev->pm.power_state) + kfree(rdev->pm.power_state); + + radeon_hwmon_fini(rdev); +} + +void radeon_pm_fini(struct radeon_device *rdev) +{ + if (rdev->pm.pm_method == PM_METHOD_DPM) + radeon_pm_fini_dpm(rdev); + else + radeon_pm_fini_old(rdev); +} + +static void radeon_pm_compute_clocks_old(struct radeon_device *rdev) { struct drm_device *ddev = rdev->ddev; struct drm_crtc *crtc; @@ -739,6 +1321,46 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev) mutex_unlock(&rdev->pm.mutex); } +static void radeon_pm_compute_clocks_dpm(struct radeon_device *rdev) +{ + struct drm_device *ddev = rdev->ddev; + struct drm_crtc *crtc; + struct radeon_crtc *radeon_crtc; + + mutex_lock(&rdev->pm.mutex); + + /* update active crtc counts */ + rdev->pm.dpm.new_active_crtcs = 0; + rdev->pm.dpm.new_active_crtc_count = 0; + list_for_each_entry(crtc, + &ddev->mode_config.crtc_list, head) { + radeon_crtc = to_radeon_crtc(crtc); + if (crtc->enabled) { + rdev->pm.dpm.new_active_crtcs |= (1 << radeon_crtc->crtc_id); + rdev->pm.dpm.new_active_crtc_count++; + } + } + + /* update battery/ac status */ + if (power_supply_is_system_supplied() > 0) + rdev->pm.dpm.ac_power = true; + else + rdev->pm.dpm.ac_power = false; + + radeon_dpm_change_power_state_locked(rdev); + + mutex_unlock(&rdev->pm.mutex); + +} + +void radeon_pm_compute_clocks(struct radeon_device *rdev) +{ + if (rdev->pm.pm_method == PM_METHOD_DPM) + radeon_pm_compute_clocks_dpm(rdev); + else + radeon_pm_compute_clocks_old(rdev); +} + static bool radeon_pm_in_vbl(struct radeon_device *rdev) { int crtc, vpos, hpos, vbl_status; @@ -842,19 +1464,28 @@ static int radeon_debugfs_pm_info(struct seq_file *m, void *data) struct drm_device *dev = node->minor->dev; struct radeon_device *rdev = dev->dev_private; - seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk); - /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */ - if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP)) - seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk); - else - seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev)); - seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk); - if (rdev->asic->pm.get_memory_clock) - seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev)); - if (rdev->pm.current_vddc) - seq_printf(m, "voltage: %u mV\n", rdev->pm.current_vddc); - if (rdev->asic->pm.get_pcie_lanes) - seq_printf(m, "PCIE lanes: %d\n", radeon_get_pcie_lanes(rdev)); + if (rdev->pm.dpm_enabled) { + mutex_lock(&rdev->pm.mutex); + if (rdev->asic->dpm.debugfs_print_current_performance_level) + radeon_dpm_debugfs_print_current_performance_level(rdev, m); + else + seq_printf(m, "Debugfs support not implemented for this asic\n"); + mutex_unlock(&rdev->pm.mutex); + } else { + seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk); + /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */ + if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP)) + seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk); + else + seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev)); + seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk); + if (rdev->asic->pm.get_memory_clock) + seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev)); + if (rdev->pm.current_vddc) + seq_printf(m, "voltage: %u mV\n", rdev->pm.current_vddc); + if (rdev->asic->pm.get_pcie_lanes) + seq_printf(m, "PCIE lanes: %d\n", radeon_get_pcie_lanes(rdev)); + } return 0; } |