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 57
