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/**************************************************************************
*
* Copyright (c) 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
* All Rights Reserved.
* Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
* All Rights Reserved.
*
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
*/
#ifndef _TTM_REGMAN_H_
#define _TTM_REGMAN_H_
#include <linux/list.h>
struct ttm_fence_object;
struct ttm_reg {
struct list_head head;
struct ttm_fence_object *fence;
uint32_t fence_type;
uint32_t new_fence_type;
};
struct ttm_reg_manager {
struct list_head free;
struct list_head lru;
struct list_head unfenced;
int (*reg_reusable)(const struct ttm_reg *reg, const void *data);
void (*reg_destroy)(struct ttm_reg *reg);
};
extern int ttm_regs_alloc(struct ttm_reg_manager *manager,
const void *data,
uint32_t fence_class,
uint32_t fence_type,
int interruptible,
int no_wait,
struct ttm_reg **reg);
extern void ttm_regs_fence(struct ttm_reg_manager *regs,
struct ttm_fence_object *fence);
extern void ttm_regs_free(struct ttm_reg_manager *manager);
extern void ttm_regs_add(struct ttm_reg_manager *manager, struct ttm_reg *reg);
extern void ttm_regs_init(struct ttm_reg_manager *manager,
int (*reg_reusable)(const struct ttm_reg *,
const void *),
void (*reg_destroy)(struct ttm_reg *));
#endif
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