[deliverable/linux.git] / include / asm-ia64 / agp.h

#ifndef _ASM_IA64_AGP_H
#define _ASM_IA64_AGP_H

/*
 * IA-64 specific AGP definitions.
 *
 * Copyright (C) 2002-2003 Hewlett-Packard Co
 *	David Mosberger-Tang <davidm@hpl.hp.com>
 */

/*
 * To avoid memory-attribute aliasing issues, we require that the AGPGART engine operate
 * in coherent mode, which lets us map the AGP memory as normal (write-back) memory
 * (unlike x86, where it gets mapped "write-coalescing").
 */
#define map_page_into_agp(page)		/* nothing */
#define unmap_page_from_agp(page)	/* nothing */
#define flush_agp_cache()		mb()

/* Convert a physical address to an address suitable for the GART. */
#define phys_to_gart(x) (x)
#define gart_to_phys(x) (x)

/* GATT allocation. Returns/accepts GATT kernel virtual address. */
#define alloc_gatt_pages(order)		\
	((char *)__get_free_pages(GFP_KERNEL, (order)))
#define free_gatt_pages(table, order)	\
	free_pages((unsigned long)(table), (order))

#endif /* _ASM_IA64_AGP_H */
Commit	Line	Data
1da177e4 LT	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 */
1da177e4 LT	18	#define flush_agp_cache() mb()
1da177e4 LT	19
07eee78e KF	20	/* Convert a physical address to an address suitable for the GART. */
	21	#define phys_to_gart(x) (x)
	22	#define gart_to_phys(x) (x)
	23
	24	/* GATT allocation. Returns/accepts GATT kernel virtual address. */
	25	#define alloc_gatt_pages(order) \
	26	((char *)__get_free_pages(GFP_KERNEL, (order)))
	27	#define free_gatt_pages(table, order) \
	28	free_pages((unsigned long)(table), (order))
	29
1da177e4	30	#endif /* _ASM_IA64_AGP_H */