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
42 typedef unsigned long ITEM_TYPE;
43
44 typedef struct {
45 ITEM_TYPE val;
46 int alloc_next, free_next;
47 } list_item_t;
48
49 typedef struct {
50 int alloc;
51 int free;
52 int trace;
53 list_item_t list[SET_SIZE];
54 } set_t;
55
56 set_t *setInit(void);
57 int setAdd(set_t * set, ITEM_TYPE item);
58 int setDel(set_t * set, ITEM_TYPE item);
59 int setFirst(set_t * set, ITEM_TYPE * item);
60 int setNext(set_t * set, ITEM_TYPE * item);
61 int 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
87 struct 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 };
95 typedef struct mem_block_t TMemBlock;
96 typedef struct mem_block_t *PMemBlock;
97
98 /* a heap is just the first block in a chain */
99 typedef struct mem_block_t memHeap_t;
100
mmBlockSize(PMemBlock b)101 static __inline__ int mmBlockSize(PMemBlock b)
102 {
103 return b->size;
104 }
105
mmOffset(PMemBlock b)106 static __inline__ int mmOffset(PMemBlock b)
107 {
108 return b->ofs;
109 }
110
mmMarkReserved(PMemBlock b)111 static __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 */
120 memHeap_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 */
132 PMemBlock 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 */
137 int 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 */
144 int mmFreeMem(PMemBlock b);
145
146 /* For debuging purpose. */
147 void mmDumpMemInfo(memHeap_t * mmInit);
148
149 #endif /* __SIS_DS_H__ */
150