diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_ramht.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_ramht.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_ramht.h b/drivers/gpu/drm/nouveau/nouveau_ramht.h new file mode 100644 index 000000000000..b79cb5e1a8f1 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_ramht.h @@ -0,0 +1,55 @@ +/* + * Copyright 2010 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ + +#ifndef __NOUVEAU_RAMHT_H__ +#define __NOUVEAU_RAMHT_H__ + +struct nouveau_ramht_entry { + struct list_head head; + struct nouveau_channel *channel; + struct nouveau_gpuobj *gpuobj; + u32 handle; +}; + +struct nouveau_ramht { + struct drm_device *dev; + struct kref refcount; + spinlock_t lock; + struct nouveau_gpuobj *gpuobj; + struct list_head entries; + int bits; +}; + +extern int nouveau_ramht_new(struct drm_device *, struct nouveau_gpuobj *, + struct nouveau_ramht **); +extern void nouveau_ramht_ref(struct nouveau_ramht *, struct nouveau_ramht **, + struct nouveau_channel *unref_channel); + +extern int nouveau_ramht_insert(struct nouveau_channel *, u32 handle, + struct nouveau_gpuobj *); +extern void nouveau_ramht_remove(struct nouveau_channel *, u32 handle); +extern struct nouveau_gpuobj * +nouveau_ramht_find(struct nouveau_channel *chan, u32 handle); + +#endif |