sis_ds.h revision 119895
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 * 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, 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: 13 * 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 16 * 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 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. 25 * 26 * Authors: 27 * Sung-Ching Lin <sclin@sis.com.tw> 28 * 29 * $FreeBSD: head/sys/dev/drm/sis_ds.h 119895 2003-09-09 00:24:31Z anholt $ 30 */ 31 32#ifndef __SIS_DS_H__ 33#define __SIS_DS_H__ 34 35/* Set Data Structure */ 36 37#define SET_SIZE 5000 38 39typedef unsigned int ITEM_TYPE; 40 41typedef struct { 42 ITEM_TYPE val; 43 int alloc_next, free_next; 44} list_item_t; 45 46typedef struct { 47 int alloc; 48 int free; 49 int trace; 50 list_item_t list[SET_SIZE]; 51} set_t; 52 53set_t *setInit(void); 54int setAdd(set_t *set, ITEM_TYPE item); 55int setDel(set_t *set, ITEM_TYPE item); 56int setFirst(set_t *set, ITEM_TYPE *item); 57int setNext(set_t *set, ITEM_TYPE *item); 58int setDestroy(set_t *set); 59 60/* 61 * GLX Hardware Device Driver common code 62 * Copyright (C) 1999 Keith Whitwell 63 * 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: 70 * 71 * The above copyright notice and this permission notice shall be included 72 * in all copies or substantial portions of the Software. 73 * 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. 81 * 82 */ 83 84struct mem_block_t { 85 struct mem_block_t *next; 86 struct mem_block_t *heap; 87 int ofs,size; 88 int align; 89 int free:1; 90 int reserved:1; 91}; 92typedef struct mem_block_t TMemBlock; 93typedef struct mem_block_t *PMemBlock; 94 95/* a heap is just the first block in a chain */ 96typedef struct mem_block_t memHeap_t; 97 98static __inline__ int mmBlockSize(PMemBlock b) 99{ 100 return b->size; 101} 102 103static __inline__ int mmOffset(PMemBlock b) 104{ 105 return b->ofs; 106} 107 108static __inline__ void mmMarkReserved(PMemBlock b) 109{ 110 b->reserved = 1; 111} 112 113/* 114 * input: total size in bytes 115 * return: a heap pointer if OK, NULL if error 116 */ 117memHeap_t *mmInit( int ofs, int size ); 118 119memHeap_t *mmAddRange( memHeap_t *heap, 120 int ofs, 121 int size ); 122 123/* 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 132 */ 133PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch ); 134 135/* 136 * Returns 1 if the block 'b' is part of the heap 'heap' 137 */ 138int mmBlockInHeap( PMemBlock heap, PMemBlock b ); 139 140/* 141 * Free block starts at offset 142 * input: pointer to a block 143 * return: 0 if OK, -1 if error 144 */ 145int mmFreeMem( PMemBlock b ); 146 147/* 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 153 */ 154int mmReserveMem( memHeap_t *heap, int offset,int size ); 155int mmFreeReserved( memHeap_t *heap, int offset ); 156 157/* 158 * destroy MM 159 */ 160void mmDestroy( memHeap_t *mmInit ); 161 162/* For debuging purpose. */ 163void mmDumpMemInfo( memHeap_t *mmInit ); 164 165#endif /* __SIS_DS_H__ */ 166