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/*
* 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 int nouveau_ramht_remove(struct nouveau_channel *, u32 handle);
extern struct nouveau_gpuobj *
nouveau_ramht_find(struct nouveau_channel *chan, u32 handle);
#endif
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