C++ (Cpp) via_unmap_blit_from_device Examples

Example #1

File: via_dmablit.c Project: jobi/drm-psb

static void
via_free_sg_info(struct pci_dev *pdev, drm_via_sg_info_t *vsg) 
{
	struct page *page;
	int i;

	switch(vsg->state) {
	case dr_via_device_mapped:
		via_unmap_blit_from_device(pdev, vsg);
	case dr_via_desc_pages_alloc:
		for (i=0; i<vsg->num_desc_pages; ++i) {
			if (vsg->desc_pages[i] != NULL)
			  free_page((unsigned long)vsg->desc_pages[i]);
		}
		kfree(vsg->desc_pages);
	case dr_via_pages_locked:
		for (i=0; i<vsg->num_pages; ++i) {
			if ( NULL != (page = vsg->pages[i])) {
				if (! PageReserved(page) && (DMA_FROM_DEVICE == vsg->direction)) 
					SetPageDirty(page);
				page_cache_release(page);
			}
		}
	case dr_via_pages_alloc:
		vfree(vsg->pages);
	default:
		vsg->state = dr_via_sg_init;
	}
	if (vsg->bounce_buffer) {
		vfree(vsg->bounce_buffer);
		vsg->bounce_buffer = NULL;
	}
	vsg->free_on_sequence = 0;
}		

Example #2

File: via_dmablit.c Project: JabirTech/Source

/*
 * Function that frees up all resources for a blit. It is usable even if the
 * blit info has only been partially built as long as the status enum is consistent
 * with the actual status of the used resources.
 */
static void
via_free_sg_info(drm_via_sg_info_t *vsg)
{
	vm_page_t page;
	int i;

	switch(vsg->state) {
	case dr_via_device_mapped:
		via_unmap_blit_from_device(vsg);
	case dr_via_desc_pages_alloc:
		for (i=0; i<vsg->num_desc_pages; ++i) {
			if (vsg->desc_pages[i] != NULL)
			    free(vsg->desc_pages[i], DRM_MEM_PAGES);
		}
		free(vsg->desc_pages, DRM_MEM_DRIVER);
	case dr_via_pages_locked:
		for (i=0; i < vsg->num_pages; ++i) {
			page = vsg->pages[i];
			vm_page_lock(page);
			vm_page_unwire(page, 0);
			vm_page_unlock(page);
		}
	case dr_via_pages_alloc:
		free(vsg->pages, DRM_MEM_DRIVER);
	default:
		vsg->state = dr_via_sg_init;
	}
	free(vsg->bounce_buffer, DRM_MEM_DRIVER);
	vsg->bounce_buffer = NULL;
	vsg->free_on_sequence = 0;
}