cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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agp.h (863B)

      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 */