1#ifndef _ASM_IA64_AGP_H 2#define _ASM_IA64_AGP_H 3 4/* 5 * IA-64 specific AGP definitions. 6 * 7 * Copyright (C) 2002-2003 Hewlett-Packard Co 8 * David Mosberger-Tang <davidm@hpl.hp.com> 9 */ 10 11/* 12 * To avoid memory-attribute aliasing issues, we require that the AGPGART engine operate 13 * in coherent mode, which lets us map the AGP memory as normal (write-back) memory 14 * (unlike x86, where it gets mapped "write-coalescing"). 15 */ 16#define map_page_into_agp(page) /* nothing */ 17#define unmap_page_from_agp(page) /* nothing */ 18#define flush_agp_mappings() /* nothing */ 19#define flush_agp_cache() mb() 20 21/* Convert a physical address to an address suitable for the GART. */ 22#define phys_to_gart(x) (x) 23#define gart_to_phys(x) (x) 24 25/* GATT allocation. Returns/accepts GATT kernel virtual address. */ 26#define alloc_gatt_pages(order) \ 27 ((char *)__get_free_pages(GFP_KERNEL, (order))) 28#define free_gatt_pages(table, order) \ 29 free_pages((unsigned long)(table), (order)) 30 31#endif /* _ASM_IA64_AGP_H */ 32