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
ttm_set_pages_array_wb(struct page ** pages,int addrinarray)40 static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
41 {
42 return set_pages_array_wb(pages, addrinarray);
43 }
44
ttm_set_pages_array_wc(struct page ** pages,int addrinarray)45 static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
46 {
47 return set_pages_array_wc(pages, addrinarray);
48 }
49
ttm_set_pages_array_uc(struct page ** pages,int addrinarray)50 static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
51 {
52 return set_pages_array_uc(pages, addrinarray);
53 }
54
ttm_set_pages_wb(struct page * page,int numpages)55 static inline int ttm_set_pages_wb(struct page *page, int numpages)
56 {
57 return set_pages_wb(page, numpages);
58 }
59
ttm_set_pages_wc(struct page * page,int numpages)60 static 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
ttm_set_pages_uc(struct page * page,int numpages)67 static 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
ttm_set_pages_array_wb(struct page ** pages,int addrinarray)78 static 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
ttm_set_pages_array_wc(struct page ** pages,int addrinarray)87 static 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
ttm_set_pages_array_uc(struct page ** pages,int addrinarray)96 static 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
ttm_set_pages_wb(struct page * page,int numpages)105 static 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
ttm_set_pages_array_wb(struct page ** pages,int addrinarray)116 static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
117 {
118 return 0;
119 }
120
ttm_set_pages_array_wc(struct page ** pages,int addrinarray)121 static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
122 {
123 return 0;
124 }
125
ttm_set_pages_array_uc(struct page ** pages,int addrinarray)126 static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
127 {
128 return 0;
129 }
130
ttm_set_pages_wb(struct page * page,int numpages)131 static inline int ttm_set_pages_wb(struct page *page, int numpages)
132 {
133 return 0;
134 }
135
136 #endif /* for CONFIG_AGP */
137
ttm_set_pages_wc(struct page * page,int numpages)138 static inline int ttm_set_pages_wc(struct page *page, int numpages)
139 {
140 return 0;
141 }
142
ttm_set_pages_uc(struct page * page,int numpages)143 static 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