arch/ia64/include/asm/agp.h

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