tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_cache() mb()
19
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
30#endif /* _ASM_IA64_AGP_H */