コード例 #1
0
ファイル: i915_drv.c プロジェクト: spacex/kernel-centos7
static int i915_drm_freeze(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct drm_crtc *crtc;

	intel_runtime_pm_get(dev_priv);

	/* 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. */
	intel_display_set_init_power(dev_priv, 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;

		error = i915_gem_suspend(dev);
		if (error) {
			dev_err(&dev->pdev->dev,
				"GEM idle failed, resume might fail\n");
			return error;
		}

		intel_disable_gt_powersave(dev);

		/*
		 * Disable CRTCs directly since we want to preserve sw state
		 * for _thaw.
		 */
		drm_modeset_lock_all(dev);
		for_each_crtc(dev, crtc) {
			dev_priv->display.crtc_disable(crtc);
		}
		drm_modeset_unlock_all(dev);

		intel_dp_mst_suspend(dev);
		drm_irq_uninstall(dev);

		intel_modeset_suspend_hw(dev);
	}
コード例 #2
0
static int i915_drm_suspend(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	pci_power_t opregion_target_state;
	int error;

	/* 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);

	disable_rpm_wakeref_asserts(dev_priv);

	/* We do a lot of poking in a lot of registers, make sure they work
	 * properly. */
	intel_display_set_init_power(dev_priv, true);

	drm_kms_helper_poll_disable(dev);

	pci_save_state(dev->pdev);

	error = i915_gem_suspend(dev);
	if (error) {
		dev_err(&dev->pdev->dev,
			"GEM idle failed, resume might fail\n");
		goto out;
	}

	intel_guc_suspend(dev);

	intel_suspend_gt_powersave(dev);

	intel_display_suspend(dev);

	intel_dp_mst_suspend(dev);

	intel_runtime_pm_disable_interrupts(dev_priv);
	intel_hpd_cancel_work(dev_priv);

	intel_suspend_encoders(dev_priv);

	intel_suspend_hw(dev);

	i915_gem_suspend_gtt_mappings(dev);

	i915_save_state(dev);

	opregion_target_state = suspend_to_idle(dev_priv) ? PCI_D1 : PCI_D3cold;
	intel_opregion_notify_adapter(dev, opregion_target_state);

	intel_uncore_forcewake_reset(dev, false);
	intel_opregion_fini(dev);

	intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED, true);

	dev_priv->suspend_count++;

	intel_display_set_init_power(dev_priv, false);

	if (HAS_CSR(dev_priv))
		flush_work(&dev_priv->csr.work);

out:
	enable_rpm_wakeref_asserts(dev_priv);

	return error;
}
コード例 #3
0
ファイル: i915_drv.c プロジェクト: AkyZero/wrapfs-latest
static int i915_drm_freeze(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct drm_crtc *crtc;
	pci_power_t opregion_target_state;

	/* 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. */
	intel_display_set_init_power(dev_priv, 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;

		error = i915_gem_suspend(dev);
		if (error) {
			dev_err(&dev->pdev->dev,
				"GEM idle failed, resume might fail\n");
			return error;
		}

		/*
		 * Disable CRTCs directly since we want to preserve sw state
		 * for _thaw. Also, power gate the CRTC power wells.
		 */
		drm_modeset_lock_all(dev);
		for_each_crtc(dev, crtc)
			intel_crtc_control(crtc, false);
		drm_modeset_unlock_all(dev);

		intel_dp_mst_suspend(dev);

		flush_delayed_work(&dev_priv->rps.delayed_resume_work);

		intel_runtime_pm_disable_interrupts(dev);

		intel_suspend_gt_powersave(dev);

		intel_modeset_suspend_hw(dev);
	}

	i915_gem_suspend_gtt_mappings(dev);

	i915_save_state(dev);

	opregion_target_state = PCI_D3cold;
#if IS_ENABLED(CONFIG_ACPI_SLEEP)
	if (acpi_target_system_state() < ACPI_STATE_S3)
		opregion_target_state = PCI_D1;
#endif
	intel_opregion_notify_adapter(dev, opregion_target_state);

	intel_uncore_forcewake_reset(dev, false);
	intel_opregion_fini(dev);

	console_lock();
	intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED);
	console_unlock();

	dev_priv->suspend_count++;

	intel_display_set_init_power(dev_priv, false);

	return 0;
}