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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 */ | |
18 | #define flush_agp_mappings() /* nothing */ | |
19 | #define flush_agp_cache() mb() | |
20 | ||
07eee78e KF |
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 | ||
1da177e4 | 31 | #endif /* _ASM_IA64_AGP_H */ |