[linux-2.6-block.git] / drivers / char / drm / via_ds.h

/*
 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
 * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
 * 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
 * VIA, S3 GRAPHICS, 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.
 */
#ifndef _via_ds_h_
#define _via_ds_h_

#include "drmP.h"

/* Set Data Structure */
#define SET_SIZE 5000
typedef unsigned long ITEM_TYPE;

typedef struct {
	ITEM_TYPE val;
	int alloc_next, free_next;
} list_item_t;

typedef struct {
	int alloc;
	int free;
	int trace;
	list_item_t list[SET_SIZE];
} set_t;

set_t *via_setInit(void);
int via_setAdd(set_t * set, ITEM_TYPE item);
int via_setDel(set_t * set, ITEM_TYPE item);
int via_setFirst(set_t * set, ITEM_TYPE * item);
int via_setNext(set_t * set, ITEM_TYPE * item);
int via_setDestroy(set_t * set);

#endif

#ifndef MM_INC
#define MM_INC

struct mem_block_t {
	struct mem_block_t *next;
	struct mem_block_t *heap;
	int ofs, size;
	int align;
	int free:1;
	int reserved:1;
};
typedef struct mem_block_t TMemBlock;
typedef struct mem_block_t *PMemBlock;

/* a heap is just the first block in a chain */
typedef struct mem_block_t memHeap_t;

static __inline__ int mmBlockSize(PMemBlock b)
{
	return b->size;
}

static __inline__ int mmOffset(PMemBlock b)
{
	return b->ofs;
}

static __inline__ void mmMarkReserved(PMemBlock b)
{
	b->reserved = 1;
}

/*
 * input: total size in bytes
 * return: a heap pointer if OK, NULL if error
 */
memHeap_t *via_mmInit(int ofs, int size);

PMemBlock via_mmAllocMem(memHeap_t * heap, int size, int align2,
			 int startSearch);

/*
 * Free block starts at offset
 * input: pointer to a block
 * return: 0 if OK, -1 if error
 */
int via_mmFreeMem(PMemBlock b);

#endif
Commit	Line	Data
22f579c6 DA	1	/*
	2	* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
	3	* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
	4	* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
	5	* All rights reserved.
	6	*
	7	* Permission is hereby granted, free of charge, to any person obtaining a
	8	* copy of this software and associated documentation files (the "Software"),
	9	* to deal in the Software without restriction, including without limitation
	10	* the rights to use, copy, modify, merge, publish, distribute, sub license,
	11	* and/or sell copies of the Software, and to permit persons to whom the
	12	* Software is furnished to do so, subject to the following conditions:
	13	*
	14	* The above copyright notice and this permission notice (including the
	15	* next paragraph) shall be included in all copies or substantial portions
	16	* of the Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	20	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	21	* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	22	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	23	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	24	* DEALINGS IN THE SOFTWARE.
	25	*/
	26	#ifndef _via_ds_h_
	27	#define _via_ds_h_
	28
	29	#include "drmP.h"
	30
	31	/* Set Data Structure */
	32	#define SET_SIZE 5000
	33	typedef unsigned long ITEM_TYPE;
	34
	35	typedef struct {
	36	ITEM_TYPE val;
	37	int alloc_next, free_next;
	38	} list_item_t;
	39
	40	typedef struct {
	41	int alloc;
	42	int free;
	43	int trace;
	44	list_item_t list[SET_SIZE];
	45	} set_t;
	46
	47	set_t *via_setInit(void);
	48	int via_setAdd(set_t * set, ITEM_TYPE item);
	49	int via_setDel(set_t * set, ITEM_TYPE item);
	50	int via_setFirst(set_t * set, ITEM_TYPE * item);
	51	int via_setNext(set_t * set, ITEM_TYPE * item);
	52	int via_setDestroy(set_t * set);
	53
	54	#endif
	55
	56	#ifndef MM_INC
	57	#define MM_INC
	58
	59	struct mem_block_t {
	60	struct mem_block_t *next;
	61	struct mem_block_t *heap;
	62	int ofs, size;
	63	int align;
	64	int free:1;
65	int reserved:1;
66	};
67	typedef struct mem_block_t TMemBlock;
68	typedef struct mem_block_t *PMemBlock;
69
70	/* a heap is just the first block in a chain */
71	typedef struct mem_block_t memHeap_t;
72
73	static __inline__ int mmBlockSize(PMemBlock b)
74	{
75	return b->size;
76	}
77
78	static __inline__ int mmOffset(PMemBlock b)
79	{
80	return b->ofs;
81	}
82
83	static __inline__ void mmMarkReserved(PMemBlock b)
84	{
85	b->reserved = 1;
86	}
87
88	/*
89	* input: total size in bytes
90	* return: a heap pointer if OK, NULL if error
91	*/
92	memHeap_t *via_mmInit(int ofs, int size);
93
94	PMemBlock via_mmAllocMem(memHeap_t * heap, int size, int align2,
95	int startSearch);
96
97	/*
98	* Free block starts at offset
99	* input: pointer to a block
100	* return: 0 if OK, -1 if error
101	*/
102	int via_mmFreeMem(PMemBlock b);
103
104	#endif