Esempi in C++ (Cpp) per map_page_into_agp

Esempio n. 1

File: ati-agp.c Progetto: OpenHMR/Open-HMR600

static int ati_create_page_map(ati_page_map *page_map)
{
	int i, err = 0;

	page_map->real = (unsigned long *) __get_free_page(GFP_KERNEL);
	if (page_map->real == NULL)
		return -ENOMEM;

	SetPageReserved(virt_to_page(page_map->real));
	err = map_page_into_agp(virt_to_page(page_map->real));
	page_map->remapped = ioremap_nocache(virt_to_gart(page_map->real),
					    PAGE_SIZE);
	if (page_map->remapped == NULL || err) {
		ClearPageReserved(virt_to_page(page_map->real));
		free_page((unsigned long) page_map->real);
		page_map->real = NULL;
		return -ENOMEM;
	}
	/*CACHE_FLUSH();*/
	global_cache_flush();

	for(i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) {
		writel(agp_bridge->scratch_page, page_map->remapped+i);
		readl(page_map->remapped+i);	/* PCI Posting. */
	}

	return 0;
}

Esempio n. 2

File: drm_ttm.c Progetto: jobi/drm-psb

static int drm_set_caching(struct drm_ttm *ttm, int noncached)
{
	int i;
	struct page **cur_page;
	int do_tlbflush = 0;

	if ((ttm->page_flags & DRM_TTM_PAGE_UNCACHED) == noncached)
		return 0;

	if (noncached)
		drm_ttm_cache_flush();

	for (i = 0; i < ttm->num_pages; ++i) {
		cur_page = ttm->pages + i;
		if (*cur_page) {
			if (!PageHighMem(*cur_page)) {
				if (noncached) {
					map_page_into_agp(*cur_page);
				} else {
					unmap_page_from_agp(*cur_page);
				}
				do_tlbflush = 1;
			}
		}
	}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25))
	if (do_tlbflush) {
		flush_agp_mappings();
        }
#endif

	DRM_FLAG_MASKED(ttm->page_flags, noncached, DRM_TTM_PAGE_UNCACHED);

	return 0;
}

Esempio n. 3

File: ati-agp.c Progetto: 0-T-0/ps4-linux

static int ati_create_page_map(struct ati_page_map *page_map)
{
	int i, err = 0;

	page_map->real = (unsigned long *) __get_free_page(GFP_KERNEL);
	if (page_map->real == NULL)
		return -ENOMEM;

	set_memory_uc((unsigned long)page_map->real, 1);
	err = map_page_into_agp(virt_to_page(page_map->real));
	page_map->remapped = page_map->real;

	for (i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) {
		writel(agp_bridge->scratch_page, page_map->remapped+i);
		readl(page_map->remapped+i);	/* PCI Posting. */
	}

	return 0;
}