diff options
Diffstat (limited to 'linux-core/drm_compat.h')
| -rw-r--r-- | linux-core/drm_compat.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/linux-core/drm_compat.h b/linux-core/drm_compat.h index 779a7000..cf84a70b 100644 --- a/linux-core/drm_compat.h +++ b/linux-core/drm_compat.h @@ -31,6 +31,7 @@ * OTHER DEALINGS IN THE SOFTWARE. */ +#include <asm/agp.h> #ifndef _DRM_COMPAT_H_ #define _DRM_COMPAT_H_ @@ -245,4 +246,26 @@ extern void drm_clear_vma(struct vm_area_struct *vma, extern pgprot_t vm_get_page_prot(unsigned long vm_flags); +/* + * These are similar to the current kernel gatt pages allocator, only that we + * want a struct page pointer instead of a virtual address. This allows for pages + * that are not in the kernel linear map. + */ + +#define drm_alloc_gatt_pages(order) virt_to_page(alloc_gatt_pages(order)) +#define drm_free_gatt_pages(pages, order) free_gatt_pages(page_address(pages), order) + +#if defined(CONFIG_X86) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)) + +/* + * These are too slow in earlier kernels. + */ + +extern int drm_unmap_page_from_agp(struct page *page); +extern int drm_map_page_into_agp(struct page *page); + +#define map_page_into_agp drm_map_page_into_agp +#define unmap_page_from_agp drm_unmap_page_from_agp +#endif + #endif |