LXR linux/include/drm/ttm/ttm_set

   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