166 lines
5.0 KiB
C
166 lines
5.0 KiB
C
/* sis_ds.h -- Private header for Direct Rendering Manager -*- linux-c -*-
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* Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw */
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/*-
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* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Sung-Ching Lin <sclin@sis.com.tw>
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*
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* $FreeBSD$
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*/
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#ifndef __SIS_DS_H__
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#define __SIS_DS_H__
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/* Set Data Structure */
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#define SET_SIZE 5000
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typedef unsigned long ITEM_TYPE;
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typedef struct {
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ITEM_TYPE val;
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int alloc_next, free_next;
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} list_item_t;
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typedef struct {
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int alloc;
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int free;
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int trace;
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list_item_t list[SET_SIZE];
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} set_t;
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set_t *setInit(void);
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int setAdd(set_t *set, ITEM_TYPE item);
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int setDel(set_t *set, ITEM_TYPE item);
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int setFirst(set_t *set, ITEM_TYPE *item);
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int setNext(set_t *set, ITEM_TYPE *item);
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int setDestroy(set_t *set);
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/*
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* GLX Hardware Device Driver common code
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* Copyright (C) 1999 Keith Whitwell
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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struct mem_block_t {
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struct mem_block_t *next;
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struct mem_block_t *heap;
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int ofs,size;
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int align;
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int free:1;
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int reserved:1;
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};
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typedef struct mem_block_t TMemBlock;
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typedef struct mem_block_t *PMemBlock;
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/* a heap is just the first block in a chain */
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typedef struct mem_block_t memHeap_t;
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static __inline__ int mmBlockSize(PMemBlock b)
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{
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return b->size;
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}
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static __inline__ int mmOffset(PMemBlock b)
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{
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return b->ofs;
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}
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static __inline__ void mmMarkReserved(PMemBlock b)
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{
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b->reserved = 1;
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}
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/*
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* input: total size in bytes
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* return: a heap pointer if OK, NULL if error
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*/
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memHeap_t *mmInit( int ofs, int size );
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memHeap_t *mmAddRange( memHeap_t *heap,
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int ofs,
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int size );
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/*
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* Allocate 'size' bytes with 2^align2 bytes alignment,
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* restrict the search to free memory after 'startSearch'
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* depth and back buffers should be in different 4mb banks
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* to get better page hits if possible
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* input: size = size of block
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* align2 = 2^align2 bytes alignment
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* startSearch = linear offset from start of heap to begin search
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* return: pointer to the allocated block, 0 if error
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*/
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PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch );
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/*
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* Returns 1 if the block 'b' is part of the heap 'heap'
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*/
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int mmBlockInHeap( PMemBlock heap, PMemBlock b );
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/*
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* Free block starts at offset
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* input: pointer to a block
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* return: 0 if OK, -1 if error
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*/
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int mmFreeMem( PMemBlock b );
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/*
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* Reserve 'size' bytes block start at offset
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* This is used to prevent allocation of memory already used
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* by the X server for the front buffer, pixmaps, and cursor
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* input: size, offset
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* output: 0 if OK, -1 if error
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*/
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int mmReserveMem( memHeap_t *heap, int offset,int size );
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int mmFreeReserved( memHeap_t *heap, int offset );
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/*
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* destroy MM
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*/
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void mmDestroy( memHeap_t *mmInit );
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/* For debuging purpose. */
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void mmDumpMemInfo( memHeap_t *mmInit );
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#endif /* __SIS_DS_H__ */
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