include/drm/ttm/ttm_set_memory.h

   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
  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
  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
  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
  55 static inline int ttm_set_pages_wb(struct page *page, int numpages)
  56 {
  57         return set_pages_wb(page, numpages);
  58 }
  59
  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
  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
  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
  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
  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
 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
 116 static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
 117 {
 118         return 0;
 119 }
 120
 121 static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
 122 {
 123         return 0;
 124 }
 125
 126 static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
 127 {
 128         return 0;
 129 }
 130
 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
 138 static inline int ttm_set_pages_wc(struct page *page, int numpages)
 139 {
 140         return 0;
 141 }
 142
 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