1/* sis_ds.h -- Private header for Direct Rendering Manager -*- linux-c -*-
2 * Created: Mon Jan  4 10:05:05 1999 by sclin@sis.com.tw
3 */
4/*-
5 * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
6 * All rights reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 * DEALINGS IN THE SOFTWARE.
26 *
27 * Authors:
28 *    Sung-Ching Lin <sclin@sis.com.tw>
29 *
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35#ifndef __SIS_DS_H__
36#define __SIS_DS_H__
37
38/* Set Data Structure */
39
40#define SET_SIZE 5000
41
42typedef unsigned long ITEM_TYPE;
43
44typedef struct {
45	ITEM_TYPE val;
46	int alloc_next, free_next;
47} list_item_t;
48
49typedef struct {
50	int alloc;
51	int free;
52	int trace;
53	list_item_t list[SET_SIZE];
54} set_t;
55
56set_t *setInit(void);
57int setAdd(set_t * set, ITEM_TYPE item);
58int setDel(set_t * set, ITEM_TYPE item);
59int setFirst(set_t * set, ITEM_TYPE * item);
60int setNext(set_t * set, ITEM_TYPE * item);
61int setDestroy(set_t * set);
62
63/*
64 * GLX Hardware Device Driver common code
65 * Copyright (C) 1999 Wittawat Yamwong
66 *
67 * Permission is hereby granted, free of charge, to any person obtaining a
68 * copy of this software and associated documentation files (the "Software"),
69 * to deal in the Software without restriction, including without limitation
70 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
71 * and/or sell copies of the Software, and to permit persons to whom the
72 * Software is furnished to do so, subject to the following conditions:
73 *
74 * The above copyright notice and this permission notice shall be included
75 * in all copies or substantial portions of the Software.
76 *
77 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
78 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
79 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
80 * WITTAWAT YAMWONG, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
81 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
82 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
83 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
84 *
85 */
86
87struct mem_block_t {
88	struct mem_block_t *next;
89	struct mem_block_t *heap;
90	int ofs, size;
91	int align;
92	unsigned int free:1;
93	unsigned int reserved:1;
94};
95typedef struct mem_block_t TMemBlock;
96typedef struct mem_block_t *PMemBlock;
97
98/* a heap is just the first block in a chain */
99typedef struct mem_block_t memHeap_t;
100
101static __inline__ int mmBlockSize(PMemBlock b)
102{
103	return b->size;
104}
105
106static __inline__ int mmOffset(PMemBlock b)
107{
108	return b->ofs;
109}
110
111static __inline__ void mmMarkReserved(PMemBlock b)
112{
113	b->reserved = 1;
114}
115
116/*
117 * input: total size in bytes
118 * return: a heap pointer if OK, NULL if error
119 */
120memHeap_t *mmInit(int ofs, int size);
121
122/*
123 * Allocate 'size' bytes with 2^align2 bytes alignment,
124 * restrict the search to free memory after 'startSearch'
125 * depth and back buffers should be in different 4mb banks
126 * to get better page hits if possible
127 * input:	size = size of block
128 *       	align2 = 2^align2 bytes alignment
129 *		startSearch = linear offset from start of heap to begin search
130 * return: pointer to the allocated block, 0 if error
131 */
132PMemBlock mmAllocMem(memHeap_t * heap, int size, int align2, int startSearch);
133
134/*
135 * Returns 1 if the block 'b' is part of the heap 'heap'
136 */
137int mmBlockInHeap(PMemBlock heap, PMemBlock b);
138
139/*
140 * Free block starts at offset
141 * input: pointer to a block
142 * return: 0 if OK, -1 if error
143 */
144int mmFreeMem(PMemBlock b);
145
146/* For debuging purpose. */
147void mmDumpMemInfo(memHeap_t * mmInit);
148
149#endif				/* __SIS_DS_H__ */
150