1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _ASM_IA64_AGP_H 3*4882a593Smuzhiyun #define _ASM_IA64_AGP_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * IA-64 specific AGP definitions. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright (C) 2002-2003 Hewlett-Packard Co 9*4882a593Smuzhiyun * David Mosberger-Tang <davidm@hpl.hp.com> 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun /* 13*4882a593Smuzhiyun * To avoid memory-attribute aliasing issues, we require that the AGPGART engine operate 14*4882a593Smuzhiyun * in coherent mode, which lets us map the AGP memory as normal (write-back) memory 15*4882a593Smuzhiyun * (unlike x86, where it gets mapped "write-coalescing"). 16*4882a593Smuzhiyun */ 17*4882a593Smuzhiyun #define map_page_into_agp(page) do { } while (0) 18*4882a593Smuzhiyun #define unmap_page_from_agp(page) do { } while (0) 19*4882a593Smuzhiyun #define flush_agp_cache() mb() 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /* GATT allocation. Returns/accepts GATT kernel virtual address. */ 22*4882a593Smuzhiyun #define alloc_gatt_pages(order) \ 23*4882a593Smuzhiyun ((char *)__get_free_pages(GFP_KERNEL, (order))) 24*4882a593Smuzhiyun #define free_gatt_pages(table, order) \ 25*4882a593Smuzhiyun free_pages((unsigned long)(table), (order)) 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun #endif /* _ASM_IA64_AGP_H */ 28