include/drm/drm_agpsupport.h

   1 #ifndef _DRM_AGPSUPPORT_H_
   2 #define _DRM_AGPSUPPORT_H_
   3
   4 #include <linux/agp_backend.h>
   5 #include <linux/kernel.h>
   6 #include <linux/list.h>
   7 #include <linux/mm.h>
   8 #include <linux/mutex.h>
   9 #include <linux/types.h>
  10 #include <uapi/drm/drm.h>
  11
  12 struct drm_device;
  13 struct drm_file;
  14
  15 struct drm_agp_head {
  16         struct agp_kern_info agp_info;
  17         struct list_head memory;
  18         unsigned long mode;
  19         struct agp_bridge_data *bridge;
  20         int enabled;
  21         int acquired;
  22         unsigned long base;
  23         int agp_mtrr;
  24         int cant_use_aperture;
  25         unsigned long page_mask;
  26 };
  27
  28 #if IS_ENABLED(CONFIG_AGP)
  29
  30 void drm_free_agp(struct agp_memory * handle, int pages);
  31 int drm_bind_agp(struct agp_memory * handle, unsigned int start);
  32 int drm_unbind_agp(struct agp_memory * handle);
  33 struct agp_memory *drm_agp_bind_pages(struct drm_device *dev,
  34                                 struct page **pages,
  35                                 unsigned long num_pages,
  36                                 uint32_t gtt_offset,
  37                                 uint32_t type);
  38
  39 struct drm_agp_head *drm_agp_init(struct drm_device *dev);
  40 void drm_legacy_agp_clear(struct drm_device *dev);
  41 int drm_agp_acquire(struct drm_device *dev);
  42 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
  43                           struct drm_file *file_priv);
  44 int drm_agp_release(struct drm_device *dev);
  45 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
  46                           struct drm_file *file_priv);
  47 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
  48 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
  49                          struct drm_file *file_priv);
  50 int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
  51 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
  52                        struct drm_file *file_priv);
  53 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
  54 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
  55                         struct drm_file *file_priv);
  56 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
  57 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
  58                        struct drm_file *file_priv);
  59 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
  60 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
  61                          struct drm_file *file_priv);
  62 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
  63 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
  64                        struct drm_file *file_priv);
  65
  66 #else /* CONFIG_AGP */
  67
  68 static inline void drm_free_agp(struct agp_memory * handle, int pages)
  69 {
  70 }
  71
  72 static inline int drm_bind_agp(struct agp_memory * handle, unsigned int start)
  73 {
  74         return -ENODEV;
  75 }
  76
  77 static inline int drm_unbind_agp(struct agp_memory * handle)
  78 {
  79         return -ENODEV;
  80 }
  81
  82 static inline struct agp_memory *drm_agp_bind_pages(struct drm_device *dev,
  83                                               struct page **pages,
  84                                               unsigned long num_pages,
  85                                               uint32_t gtt_offset,
  86                                               uint32_t type)
  87 {
  88         return NULL;
  89 }
  90
  91 static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev)
  92 {
  93         return NULL;
  94 }
  95
  96 static inline void drm_legacy_agp_clear(struct drm_device *dev)
  97 {
  98 }
  99
 100 static inline int drm_agp_acquire(struct drm_device *dev)
 101 {
 102         return -ENODEV;
 103 }
 104
 105 static inline int drm_agp_release(struct drm_device *dev)
 106 {
 107         return -ENODEV;
 108 }
 109
 110 static inline int drm_agp_enable(struct drm_device *dev,
 111                                  struct drm_agp_mode mode)
 112 {
 113         return -ENODEV;
 114 }
 115
 116 static inline int drm_agp_info(struct drm_device *dev,
 117                                struct drm_agp_info *info)
 118 {
 119         return -ENODEV;
 120 }
 121
 122 static inline int drm_agp_alloc(struct drm_device *dev,
 123                                 struct drm_agp_buffer *request)
 124 {
 125         return -ENODEV;
 126 }
 127
 128 static inline int drm_agp_free(struct drm_device *dev,
 129                                struct drm_agp_buffer *request)
 130 {
 131         return -ENODEV;
 132 }
 133
 134 static inline int drm_agp_unbind(struct drm_device *dev,
 135                                  struct drm_agp_binding *request)
 136 {
 137         return -ENODEV;
 138 }
 139
 140 static inline int drm_agp_bind(struct drm_device *dev,
 141                                struct drm_agp_binding *request)
 142 {
 143         return -ENODEV;
 144 }
 145
 146 #endif /* CONFIG_AGP */
 147
 148 #endif /* _DRM_AGPSUPPORT_H_ */