sys/external/bsd/drm/dist/libdrm/nouveau/nouveau_channel.h

   1 /*
   2  * Copyright 2007 Nouveau Project
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  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 NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #ifndef __NOUVEAU_CHANNEL_H__
  24 #define __NOUVEAU_CHANNEL_H__
  25
  26 struct nouveau_subchannel {
  27         struct nouveau_grobj *gr;
  28         unsigned sequence;
  29 };
  30
  31 struct nouveau_channel {
  32         struct nouveau_device *device;
  33         int id;
  34
  35         struct nouveau_pushbuf *pushbuf;
  36
  37         struct nouveau_grobj *nullobj;
  38         struct nouveau_grobj *vram;
  39         struct nouveau_grobj *gart;
  40
  41         void *user_private;
  42         void (*hang_notify)(struct nouveau_channel *);
  43         void (*flush_notify)(struct nouveau_channel *);
  44
  45         struct nouveau_subchannel subc[8];
  46         unsigned subc_sequence;
  47 };
  48
  49 int
  50 nouveau_channel_alloc(struct nouveau_device *, uint32_t fb, uint32_t tt,
  51                       struct nouveau_channel **);
  52
  53 void
  54 nouveau_channel_free(struct nouveau_channel **);
  55
  56 #endif