C++ drm_irq_uninstall函数代码示例

static int PVRSRVDRMUnload(struct drm_device *dev)
{
	struct pvr_drm_dev_priv *psDevPriv = (struct pvr_drm_dev_priv *)dev->dev_private;
#if defined(SUPPORT_SYSTEM_INTERRUPT_HANDLING)
	IMG_HANDLE hSysData = psDevPriv->hSysData;
#endif

	PVR_TRACE(("PVRSRVDRMUnload"));

#if defined(SUPPORT_DRM_DC_MODULE)
	(void)PVRSRVDRMDisplayDeinit(dev);
#endif

	psDevPriv->dev_node = NULL;
	PVRSRVSystemDeInit();

#if defined(SUPPORT_SYSTEM_INTERRUPT_HANDLING)
	psDevPriv->hSysData = NULL;

	SysReleaseSystemData(hSysData);

	drm_irq_uninstall(dev);
#endif

	return 0;
}

/**
 * amdgpu_irq_fini - tear down driver interrupt info
 *
 * @adev: amdgpu device pointer
 *
 * Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics).
 */
void amdgpu_irq_fini(struct amdgpu_device *adev)
{
    unsigned i;

    drm_vblank_cleanup(adev->ddev);
    if (adev->irq.installed) {
        drm_irq_uninstall(adev->ddev);
        adev->irq.installed = false;
        if (adev->irq.msi_enabled)
            pci_disable_msi(adev->pdev);
        flush_work(&adev->hotplug_work);
    }

    for (i = 0; i < AMDGPU_MAX_IRQ_SRC_ID; ++i) {
        struct amdgpu_irq_src *src = adev->irq.sources[i];

        if (!src)
            continue;

        kfree(src->enabled_types);
        src->enabled_types = NULL;
        if (src->data) {
            kfree(src->data);
            kfree(src);
            adev->irq.sources[i] = NULL;
        }
    }
}

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. */
	hsw_disable_package_c8(dev_priv);
	intel_display_set_init_power(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;

		error = i915_gem_suspend(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);

		drm_irq_uninstall(dev);
		dev_priv->enable_hotplug_processing = false;
		/*
		 * Disable CRTCs directly since we want to preserve sw state
		 * for _thaw.
		 */
		mutex_lock(&dev->mode_config.mutex);
		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
			dev_priv->display.crtc_disable(crtc);
		mutex_unlock(&dev->mode_config.mutex);

		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;
	int error;

	dev_priv = dev->dev_private;
	drm_kms_helper_poll_disable(dev);

#if 0
	pci_save_state(dev->pdev);
#endif

	DRM_LOCK(dev);
	/* If KMS is active, we do the leavevt stuff here */
	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		error = -i915_gem_idle(dev);
		if (error) {
			DRM_UNLOCK(dev);
			device_printf(dev->device,
			    "GEM idle failed, resume might fail\n");
			return (error);
		}
		drm_irq_uninstall(dev);
	}

	i915_save_state(dev);

	intel_opregion_fini(dev);

	/* Modeset on resume, not lid events */
	dev_priv->modeset_on_lid = 0;
	DRM_UNLOCK(dev);

	return 0;
}

static void nouveau_card_takedown(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_engine *engine = &dev_priv->Engine;

	DRM_DEBUG("prev state = %d\n", dev_priv->init_state);

	if (dev_priv->init_state != NOUVEAU_CARD_INIT_DOWN) {
		nouveau_backlight_exit(dev);

		nouveau_dma_channel_takedown(dev);

		engine->fifo.takedown(dev);
		engine->graph.takedown(dev);
		engine->fb.takedown(dev);
		engine->timer.takedown(dev);
		engine->mc.takedown(dev);

		nouveau_sgdma_nottm_hack_takedown(dev);
		nouveau_sgdma_takedown(dev);

		nouveau_gpuobj_takedown(dev);
		nouveau_gpuobj_del(dev, &dev_priv->vm_vram_pt);

		nouveau_mem_close(dev);
		engine->instmem.takedown(dev);

		drm_irq_uninstall(dev);

		nouveau_gpuobj_late_takedown(dev);

		dev_priv->init_state = NOUVEAU_CARD_INIT_DOWN;
	}
}

/**
 * amdgpu_irq_fini - tear down driver interrupt info
 *
 * @adev: amdgpu device pointer
 *
 * Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics).
 */
void amdgpu_irq_fini(struct amdgpu_device *adev)
{
	unsigned i, j;

	if (adev->irq.installed) {
		drm_irq_uninstall(adev->ddev);
		adev->irq.installed = false;
		if (adev->irq.msi_enabled)
			pci_disable_msi(adev->pdev);
		flush_work(&adev->hotplug_work);
		cancel_work_sync(&adev->reset_work);
	}

	for (i = 0; i < AMDGPU_IH_CLIENTID_MAX; ++i) {
		if (!adev->irq.client[i].sources)
			continue;

		for (j = 0; j < AMDGPU_MAX_IRQ_SRC_ID; ++j) {
			struct amdgpu_irq_src *src = adev->irq.client[i].sources[j];

			if (!src)
				continue;

			kfree(src->enabled_types);
			src->enabled_types = NULL;
			if (src->data) {
				kfree(src->data);
				kfree(src);
				adev->irq.client[i].sources[j] = NULL;
			}
		}
		kfree(adev->irq.client[i].sources);
	}
}

void radeon_irq_kms_fini(struct radeon_device *rdev)
{
	if (rdev->irq.installed) {
		rdev->irq.installed = false;
		drm_irq_uninstall(rdev->ddev);
	}
}

static int i915_suspend(struct drm_device *dev, pm_message_t state)
{
	struct drm_i915_private *dev_priv = dev->dev_private;

	if (!dev || !dev_priv) {
		DRM_ERROR("dev: %p, dev_priv: %p\n", dev, dev_priv);
		DRM_ERROR("DRM not initialized, aborting suspend.\n");
		return -ENODEV;
	}

	if (state.event == PM_EVENT_PRETHAW)
		return 0;

	pci_save_state(dev->pdev);

	/* If KMS is active, we do the leavevt stuff here */
	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		if (i915_gem_idle(dev))
			dev_err(&dev->pdev->dev,
				"GEM idle failed, resume may fail\n");
		drm_irq_uninstall(dev);
	}

	i915_save_state(dev);

	intel_opregion_free(dev, 1);

	if (state.event == PM_EVENT_SUSPEND) {
		/* Shut down the device */
		pci_disable_device(dev->pdev);
		pci_set_power_state(dev->pdev, PCI_D3hot);
	}

	return 0;
}

static int i915_drm_freeze(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;

	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;
		}
		drm_irq_uninstall(dev);
	}

	i915_save_state(dev);

	intel_opregion_fini(dev);

	/* Modeset on resume, not lid events */
	dev_priv->modeset_on_lid = 0;

	console_lock();
	intel_fbdev_set_suspend(dev, 1);
	console_unlock();

	return 0;
}

/**
 * radeon_irq_kms_fini - tear down driver interrrupt info
 *
 * @rdev: radeon device pointer
 *
 * Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics).
 */
void radeon_irq_kms_fini(struct radeon_device *rdev)
{
	drm_vblank_cleanup(rdev->ddev);
	if (rdev->irq.installed) {
		drm_irq_uninstall(rdev->ddev);
		rdev->irq.installed = false;
	}
	taskqueue_drain(rdev->tq, &rdev->hotplug_work);
}

void
nouveau_irq_fini(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;

	drm_irq_uninstall(dev);
	if (dev_priv->msi_enabled)
		pci_disable_msi(dev->pdev);
}

int via_final_context(struct drm_device *dev, int context)
{	
        int i;
	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;

	for (i = 0; i < MAX_CONTEXT; i++)
		if (global_ppriv[i].used &&
		    (global_ppriv[i].context == context))
			break;

	if (i < MAX_CONTEXT) {
		set_t *set;
		ITEM_TYPE item;
		int retval;

		DRM_DEBUG("find socket %d, context = %d\n", i, context);

		/* Video Memory */
		set = global_ppriv[i].sets[0];
		retval = via_setFirst(set, &item);
		while (retval) {
			DRM_DEBUG("free video memory 0x%lx\n", item);
			via_mmFreeMem((PMemBlock) item);
			retval = via_setNext(set, &item);
		}
		via_setDestroy(set);

		/* AGP Memory */
		set = global_ppriv[i].sets[1];
		retval = via_setFirst(set, &item);
		while (retval) {
			DRM_DEBUG("free agp memory 0x%lx\n", item);
			via_mmFreeMem((PMemBlock) item);
			retval = via_setNext(set, &item);
		}
		via_setDestroy(set);
		global_ppriv[i].used = 0;
	}
	via_release_futex(dev_priv, context); 
	
			
#if defined(__linux__)
	/* Linux specific until context tracking code gets ported to BSD */
	/* Last context, perform cleanup */
	if (dev->ctx_count == 1 && dev->dev_private) {
	        DRM_DEBUG("Last Context\n");
		if (dev->irq)
			drm_irq_uninstall(dev);

		via_cleanup_futex(dev_priv);
		via_do_cleanup_map(dev);
	}
#endif

	return 1;
}

static int fsl_dcu_unload(struct drm_device *dev)
{
	drm_mode_config_cleanup(dev);
	drm_vblank_cleanup(dev);
	drm_irq_uninstall(dev);

	dev->dev_private = NULL;

	return 0;
}

/**
 * radeon_irq_kms_fini - tear down driver interrupt info
 *
 * @rdev: radeon device pointer
 *
 * Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics).
 */
void radeon_irq_kms_fini(struct radeon_device *rdev)
{
	drm_vblank_cleanup(rdev->ddev);
	if (rdev->irq.installed) {
		drm_irq_uninstall(rdev->ddev);
		rdev->irq.installed = false;
		if (rdev->msi_enabled)
			pci_disable_msi(rdev->pdev);
		flush_work(&rdev->hotplug_work);
	}
}

static int shmob_drm_unload(struct drm_device *dev)
{
	drm_kms_helper_poll_fini(dev);
	drm_mode_config_cleanup(dev);
	drm_vblank_cleanup(dev);
	drm_irq_uninstall(dev);

	dev->dev_private = NULL;

	return 0;
}