sys/external/bsd/drm/dist/libdrm/xf86mm.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
   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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  *
  27  **************************************************************************/
  28
  29 #ifndef _XF86MM_H_
  30 #define _XF86MM_H_
  31 #include <stddef.h>
  32 #include <stdint.h>
  33 #include "drm.h"
  34
  35 /*
  36  * Note on multithreaded applications using this interface.
  37  * Libdrm is not threadsafe, so common buffer, TTM, and fence objects need to
  38  * be protected using an external mutex.
  39  *
  40  * Note: Don't protect the following functions, as it may lead to deadlocks:
  41  * drmBOUnmap().
  42  * The kernel is synchronizing and refcounting buffer maps.
  43  * User space only needs to refcount object usage within the same application.
  44  */
  45
  46
  47 /*
  48  * List macros heavily inspired by the Linux kernel
  49  * list handling. No list looping yet.
  50  */
  51
  52 typedef struct _drmMMListHead
  53 {
  54     struct _drmMMListHead *prev;
  55     struct _drmMMListHead *next;
  56 } drmMMListHead;
  57
  58 #define DRMINITLISTHEAD(__item)                \
  59   do{                                          \
  60     (__item)->prev = (__item);                 \
  61     (__item)->next = (__item);                 \
  62   } while (0)
  63
  64 #define DRMLISTADD(__item, __list)              \
  65   do {                                          \
  66     (__item)->prev = (__list);                  \
  67     (__item)->next = (__list)->next;            \
  68     (__list)->next->prev = (__item);            \
  69     (__list)->next = (__item);                  \
  70   } while (0)
  71
  72 #define DRMLISTADDTAIL(__item, __list)          \
  73   do {                                          \
  74     (__item)->next = (__list);                  \
  75     (__item)->prev = (__list)->prev;            \
  76     (__list)->prev->next = (__item);            \
  77     (__list)->prev = (__item);                  \
  78   } while(0)
  79
  80 #define DRMLISTDEL(__item)                      \
  81   do {                                          \
  82     (__item)->prev->next = (__item)->next;      \
  83     (__item)->next->prev = (__item)->prev;      \
  84   } while(0)
  85
  86 #define DRMLISTDELINIT(__item)                  \
  87   do {                                          \
  88     (__item)->prev->next = (__item)->next;      \
  89     (__item)->next->prev = (__item)->prev;      \
  90     (__item)->next = (__item);                  \
  91     (__item)->prev = (__item);                  \
  92   } while(0)
  93
  94 #define DRMLISTENTRY(__type, __item, __field)   \
  95     ((__type *)(((char *) (__item)) - offsetof(__type, __field)))
  96
  97 #define DRMLISTEMPTY(__item) ((__item)->next == (__item))
  98
  99 #define DRMLISTFOREACHSAFE(__item, __temp, __list)                      \
 100         for ((__item) = (__list)->next, (__temp) = (__item)->next;      \
 101              (__item) != (__list);                                      \
 102              (__item) = (__temp), (__temp) = (__item)->next)
 103
 104 #define DRMLISTFOREACHSAFEREVERSE(__item, __temp, __list)               \
 105         for ((__item) = (__list)->prev, (__temp) = (__item)->prev;      \
 106              (__item) != (__list);                                      \
 107              (__item) = (__temp), (__temp) = (__item)->prev)
 108
 109 typedef struct _drmFence
 110 {
 111     unsigned handle;
 112     int fence_class;
 113     unsigned type;
 114     unsigned flags;
 115     unsigned signaled;
 116     uint32_t sequence;
 117     unsigned pad[4]; /* for future expansion */
 118 } drmFence;
 119
 120 typedef struct _drmBO
 121 {
 122     unsigned handle;
 123     uint64_t mapHandle;
 124     uint64_t flags;
 125     uint64_t proposedFlags;
 126     unsigned mapFlags;
 127     unsigned long size;
 128     unsigned long offset;
 129     unsigned long start;
 130     unsigned replyFlags;
 131     unsigned fenceFlags;
 132     unsigned pageAlignment;
 133     unsigned tileInfo;
 134     unsigned hwTileStride;
 135     unsigned desiredTileStride;
 136     void *virtual;
 137     void *mapVirtual;
 138     int mapCount;
 139     unsigned pad[8];     /* for future expansion */
 140 } drmBO;
 141
 142 /*
 143  * Fence functions.
 144  */
 145
 146 extern int drmFenceCreate(int fd, unsigned flags, int fence_class,
 147                           unsigned type, drmFence *fence);
 148 extern int drmFenceReference(int fd, unsigned handle, drmFence *fence);
 149 extern int drmFenceUnreference(int fd, const drmFence *fence);
 150 extern int drmFenceFlush(int fd, drmFence *fence, unsigned flush_type);
 151 extern int drmFenceSignaled(int fd, drmFence *fence,
 152                             unsigned fenceType, int *signaled);
 153 extern int drmFenceWait(int fd, unsigned flags, drmFence *fence,
 154                         unsigned flush_type);
 155 extern int drmFenceEmit(int fd, unsigned flags, drmFence *fence,
 156                         unsigned emit_type);
 157 extern int drmFenceBuffers(int fd, unsigned flags, uint32_t fence_class, drmFence *fence);
 158
 159
 160 /*
 161  * Buffer object functions.
 162  */
 163
 164 extern int drmBOCreate(int fd, unsigned long size,
 165                        unsigned pageAlignment, void *user_buffer,
 166                        uint64_t mask, unsigned hint, drmBO *buf);
 167 extern int drmBOReference(int fd, unsigned handle, drmBO *buf);
 168 extern int drmBOUnreference(int fd, drmBO *buf);
 169 extern int drmBOMap(int fd, drmBO *buf, unsigned mapFlags, unsigned mapHint,
 170                     void **address);
 171 extern int drmBOUnmap(int fd, drmBO *buf);
 172 extern int drmBOFence(int fd, drmBO *buf, unsigned flags, unsigned fenceHandle);
 173 extern int drmBOInfo(int fd, drmBO *buf);
 174 extern int drmBOBusy(int fd, drmBO *buf, int *busy);
 175
 176 extern int drmBOWaitIdle(int fd, drmBO *buf, unsigned hint);
 177
 178 /*
 179  * Initialization functions.
 180  */
 181
 182 extern int drmMMInit(int fd, unsigned long pOffset, unsigned long pSize,
 183                      unsigned memType);
 184 extern int drmMMTakedown(int fd, unsigned memType);
 185 extern int drmMMLock(int fd, unsigned memType, int lockBM, int ignoreNoEvict);
 186 extern int drmMMUnlock(int fd, unsigned memType, int unlockBM);
 187 extern int drmMMInfo(int fd, unsigned memType, uint64_t *size);
 188 extern int drmBOSetStatus(int fd, drmBO *buf,
 189                           uint64_t flags, uint64_t mask,
 190                           unsigned int hint,
 191                           unsigned int desired_tile_stride,
 192                           unsigned int tile_info);
 193 extern int drmBOVersion(int fd, unsigned int *major,
 194                         unsigned int *minor,
 195                         unsigned int *patchlevel);
 196
 197
 198 #endif