static int i915_drm_freeze(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct drm_crtc *crtc; /* ignore lid events during suspend */ mutex_lock(&dev_priv->modeset_restore_lock); dev_priv->modeset_restore = MODESET_SUSPENDED; mutex_unlock(&dev_priv->modeset_restore_lock); /* We do a lot of poking in a lot of registers, make sure they work * properly. */ hsw_disable_package_c8(dev_priv); intel_set_power_well(dev, true); drm_kms_helper_poll_disable(dev); pci_save_state(dev->pdev); /* If KMS is active, we do the leavevt stuff here */ if (drm_core_check_feature(dev, DRIVER_MODESET)) { int error; mutex_lock(&dev->struct_mutex); error = i915_gem_idle(dev); mutex_unlock(&dev->struct_mutex); if (error) { dev_err(&dev->pdev->dev, "GEM idle failed, resume might fail\n"); return error; } cancel_delayed_work_sync(&dev_priv->rps.delayed_resume_work); drm_irq_uninstall(dev); dev_priv->enable_hotplug_processing = false; /* * Disable CRTCs directly since we want to preserve sw state * for _thaw. */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) dev_priv->display.crtc_disable(crtc); intel_modeset_suspend_hw(dev); } i915_gem_suspend_gtt_mappings(dev); i915_save_state(dev); intel_opregion_fini(dev); console_lock(); intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED); console_unlock(); return 0; }
static int i915_drm_freeze(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; /* ignore lid events during suspend */ mutex_lock(&dev_priv->modeset_restore_lock); dev_priv->modeset_restore = MODESET_SUSPENDED; mutex_unlock(&dev_priv->modeset_restore_lock); intel_set_power_well(dev, true); drm_kms_helper_poll_disable(dev); pci_save_state(dev->pdev); /* If KMS is active, we do the leavevt stuff here */ if (drm_core_check_feature(dev, DRIVER_MODESET)) { int error = i915_gem_idle(dev); if (error) { dev_err(&dev->pdev->dev, "GEM idle failed, resume might fail\n"); return error; } cancel_delayed_work_sync(&dev_priv->rps.delayed_resume_work); intel_modeset_disable(dev); drm_irq_uninstall(dev); dev_priv->enable_hotplug_processing = false; } i915_save_state(dev); intel_opregion_fini(dev); console_lock(); intel_fbdev_set_suspend(dev, 1); console_unlock(); return 0; }