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
4 * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
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, sublicense,
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:
14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies or substantial portions of the
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 NONINFRINGEMENT. IN NO EVENT SHALL
21 * PRECISION INSIGHT 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.
27 * Sung-Ching Lin <sclin@sis.com.tw>
35 /* Set Data Structure */
39 typedef unsigned long ITEM_TYPE;
43 int alloc_next, free_next;
50 list_item_t list[SET_SIZE];
54 int setAdd(set_t *set, ITEM_TYPE item);
55 int setDel(set_t *set, ITEM_TYPE item);
56 int setFirst(set_t *set, ITEM_TYPE *item);
57 int setNext(set_t *set, ITEM_TYPE *item);
58 int setDestroy(set_t *set);
61 * GLX Hardware Device Driver common code
62 * Copyright (C) 1999 Keith Whitwell
64 * Permission is hereby granted, free of charge, to any person obtaining a
65 * copy of this software and associated documentation files (the "Software"),
66 * to deal in the Software without restriction, including without limitation
67 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
68 * and/or sell copies of the Software, and to permit persons to whom the
69 * Software is furnished to do so, subject to the following conditions:
71 * The above copyright notice and this permission notice shall be included
72 * in all copies or substantial portions of the Software.
74 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
75 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
76 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
77 * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
78 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
79 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
80 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
85 struct mem_block_t *next;
86 struct mem_block_t *heap;
92 typedef struct mem_block_t TMemBlock;
93 typedef struct mem_block_t *PMemBlock;
95 /* a heap is just the first block in a chain */
96 typedef struct mem_block_t memHeap_t;
98 static __inline__ int mmBlockSize(PMemBlock b)
103 static __inline__ int mmOffset(PMemBlock b)
108 static __inline__ void mmMarkReserved(PMemBlock b)
114 * input: total size in bytes
115 * return: a heap pointer if OK, NULL if error
117 memHeap_t *mmInit( int ofs, int size );
119 memHeap_t *mmAddRange( memHeap_t *heap,
124 * Allocate 'size' bytes with 2^align2 bytes alignment,
125 * restrict the search to free memory after 'startSearch'
126 * depth and back buffers should be in different 4mb banks
127 * to get better page hits if possible
128 * input: size = size of block
129 * align2 = 2^align2 bytes alignment
130 * startSearch = linear offset from start of heap to begin search
131 * return: pointer to the allocated block, 0 if error
133 PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch );
136 * Returns 1 if the block 'b' is part of the heap 'heap'
138 int mmBlockInHeap( PMemBlock heap, PMemBlock b );
141 * Free block starts at offset
142 * input: pointer to a block
143 * return: 0 if OK, -1 if error
145 int mmFreeMem( PMemBlock b );
148 * Reserve 'size' bytes block start at offset
149 * This is used to prevent allocation of memory already used
150 * by the X server for the front buffer, pixmaps, and cursor
151 * input: size, offset
152 * output: 0 if OK, -1 if error
154 int mmReserveMem( memHeap_t *heap, int offset,int size );
155 int mmFreeReserved( memHeap_t *heap, int offset );
160 void mmDestroy( memHeap_t *mmInit );
162 /* For debuging purpose. */
163 void mmDumpMemInfo( memHeap_t *mmInit );
165 #endif /* __SIS_DS_H__ */