1/**************************************************************************
  2 *
  3 * Copyright (c) 2018 Advanced Micro Devices, Inc.
  4 * All Rights Reserved.
  5 *
  6 * Permission is hereby granted, free of charge, to any person obtaining a
  7 * copy of this software and associated documentation files (the
  8 * "Software"), to deal in the Software without restriction, including
  9 * without limitation the rights to use, copy, modify, merge, publish,
 10 * distribute, sub license, and/or sell copies of the Software, and to
 11 * permit persons to whom the Software is furnished to do so, subject to
 12 * the following conditions:
 13 *
 14 * The above copyright notice and this permission notice (including the
 15 * next paragraph) shall be included in all copies or substantial portions
 16 * of the Software.
 17 *
 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 25 *
 26 **************************************************************************/
 27/*
 28 * Authors: Huang Rui <ray.huang@amd.com>
 29 */
 30
 31#ifndef TTM_SET_MEMORY
 32#define TTM_SET_MEMORY
 33
 34#include <linux/mm.h>
 35
 36#ifdef CONFIG_X86
 37
 38#include <asm/set_memory.h>
 39
 40static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
 41{
 42	return set_pages_array_wb(pages, addrinarray);
 43}
 44
 45static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
 46{
 47	return set_pages_array_wc(pages, addrinarray);
 48}
 49
 50static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
 51{
 52	return set_pages_array_uc(pages, addrinarray);
 53}
 54
 55static inline int ttm_set_pages_wb(struct page *page, int numpages)
 56{
 57	return set_pages_wb(page, numpages);
 58}
 59
 60static inline int ttm_set_pages_wc(struct page *page, int numpages)
 61{
 62	unsigned long addr = (unsigned long)page_address(page);
 63
 64	return set_memory_wc(addr, numpages);
 65}
 66
 67static inline int ttm_set_pages_uc(struct page *page, int numpages)
 68{
 69	return set_pages_uc(page, numpages);
 70}
 71
 72#else /* for CONFIG_X86 */
 73
 74#if IS_ENABLED(CONFIG_AGP)
 75
 76#include <asm/agp.h>
 77
 78static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
 79{
 80	int i;
 81
 82	for (i = 0; i < addrinarray; i++)
 83		unmap_page_from_agp(pages[i]);
 84	return 0;
 85}
 86
 87static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
 88{
 89	int i;
 90
 91	for (i = 0; i < addrinarray; i++)
 92		map_page_into_agp(pages[i]);
 93	return 0;
 94}
 95
 96static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
 97{
 98	int i;
 99
100	for (i = 0; i < addrinarray; i++)
101		map_page_into_agp(pages[i]);
102	return 0;
103}
104
105static inline int ttm_set_pages_wb(struct page *page, int numpages)
106{
107	int i;
108
109	for (i = 0; i < numpages; i++)
110		unmap_page_from_agp(page++);
111	return 0;
112}
113
114#else /* for CONFIG_AGP */
115
116static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
117{
118	return 0;
119}
120
121static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
122{
123	return 0;
124}
125
126static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
127{
128	return 0;
129}
130
131static inline int ttm_set_pages_wb(struct page *page, int numpages)
132{
133	return 0;
134}
135
136#endif /* for CONFIG_AGP */
137
138static inline int ttm_set_pages_wc(struct page *page, int numpages)
139{
140	return 0;
141}
142
143static inline int ttm_set_pages_uc(struct page *page, int numpages)
144{
145	return 0;
146}
147
148#endif /* for CONFIG_X86 */
149
150#endif