sis_ds.h revision 157617
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: head/sys/dev/drm/sis_ds.h 157617 2006-04-09 20:45:45Z anholt $"); 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