Esempio n. 1
0
static int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
{
	struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
	struct drm_mm_node *node = bo_mem->mm_node;
	struct agp_memory *mem;
	int ret, cached = (bo_mem->placement & TTM_PL_FLAG_CACHED);
	unsigned i;

	mem = agp_alloc_memory(agp_be->bridge, AGP_USER_MEMORY, ttm->num_pages);
	if (unlikely(mem == NULL))
		return -ENOMEM;

	mem->page_count = 0;
	for (i = 0; i < ttm->num_pages; i++) {
		vm_page_t page = ttm->pages[i];

		if (!page)
			page = ttm->dummy_read_page;

		mem->pages[mem->page_count++] = page;
	}
	agp_be->mem = mem;

	mem->is_flushed = 1;
	mem->type = (cached) ? AGP_USER_CACHED_MEMORY : AGP_USER_MEMORY;

	ret = agp_bind_memory(mem, node->start);
	if (ret)
		pr_err("AGP Bind memory failed\n");

	return ret;
}
Esempio n. 2
0
void *drm_agp_allocate_memory(size_t pages, u32 type)
{
	device_t agpdev;

	agpdev = DRM_AGP_FIND_DEVICE();
	if (!agpdev)
		return NULL;

	return agp_alloc_memory(agpdev, type, pages << AGP_PAGE_SHIFT);
}