1 /* 2 * Copyright 2010 Red Hat Inc. 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 25 #ifndef __NOUVEAU_RAMHT_H__ 26 #define __NOUVEAU_RAMHT_H__ 27 28 struct nouveau_ramht_entry { 29 struct list_head head; 30 struct nouveau_channel *channel; 31 struct nouveau_gpuobj *gpuobj; 32 u32 handle; 33 }; 34 35 struct nouveau_ramht { 36 struct drm_device *dev; 37 struct kref refcount; 38 spinlock_t lock; 39 struct nouveau_gpuobj *gpuobj; 40 struct list_head entries; 41 int bits; 42 }; 43 44 extern int nouveau_ramht_new(struct drm_device *, struct nouveau_gpuobj *, 45 struct nouveau_ramht **); 46 extern void nouveau_ramht_ref(struct nouveau_ramht *, struct nouveau_ramht **, 47 struct nouveau_channel *unref_channel); 48 49 extern int nouveau_ramht_insert(struct nouveau_channel *, u32 handle, 50 struct nouveau_gpuobj *); 51 extern int nouveau_ramht_remove(struct nouveau_channel *, u32 handle); 52 extern struct nouveau_gpuobj * 53 nouveau_ramht_find(struct nouveau_channel *chan, u32 handle); 54 55 #endif 56