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
151