diff options
Diffstat (limited to 'kernel/arch/ia64/include/asm/agp.h')
| -rw-r--r-- | kernel/arch/ia64/include/asm/agp.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/arch/ia64/include/asm/agp.h b/kernel/arch/ia64/include/asm/agp.h new file mode 100644 index 000000000..01d09c401 --- /dev/null +++ b/kernel/arch/ia64/include/asm/agp.h @@ -0,0 +1,26 @@ +#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() + +/* 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 */ |