sis_ds.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:5k
- /* sis_ds.h -- Private header for Direct Rendering Manager -*- linux-c -*-
- * Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
- *
- * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Sung-Ching Lin <sclin@sis.com.tw>
- *
- */
- #ifndef _sis_ds_h_
- #define _sis_ds_h_
- /* Set Data Structure */
- #define SET_SIZE 5000
- #define MALLOC(s) kmalloc(s, GFP_KERNEL)
- #define FREE(s) kfree(s)
- typedef unsigned int ITEM_TYPE;
- typedef struct {
- ITEM_TYPE val;
- int alloc_next, free_next;
- } list_item_t;
- typedef struct {
- int alloc;
- int free;
- int trace;
- list_item_t list[SET_SIZE];
- } set_t;
- set_t *setInit(void);
- int setAdd(set_t *set, ITEM_TYPE item);
- int setDel(set_t *set, ITEM_TYPE item);
- int setFirst(set_t *set, ITEM_TYPE *item);
- int setNext(set_t *set, ITEM_TYPE *item);
- int setDestroy(set_t *set);
- #endif
- /*
- * GLX Hardware Device Driver common code
- * Copyright (C) 1999 Keith Whitwell
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
- * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
- #ifndef MM_INC
- #define MM_INC
- struct mem_block_t {
- struct mem_block_t *next;
- struct mem_block_t *heap;
- int ofs,size;
- int align;
- int free:1;
- int reserved:1;
- };
- typedef struct mem_block_t TMemBlock;
- typedef struct mem_block_t *PMemBlock;
- /* a heap is just the first block in a chain */
- typedef struct mem_block_t memHeap_t;
- static __inline__ int mmBlockSize(PMemBlock b)
- { return b->size; }
- static __inline__ int mmOffset(PMemBlock b)
- { return b->ofs; }
- static __inline__ void mmMarkReserved(PMemBlock b)
- { b->reserved = 1; }
- /*
- * input: total size in bytes
- * return: a heap pointer if OK, NULL if error
- */
- memHeap_t *mmInit( int ofs, int size );
- memHeap_t *mmAddRange( memHeap_t *heap,
- int ofs,
- int size );
- /*
- * Allocate 'size' bytes with 2^align2 bytes alignment,
- * restrict the search to free memory after 'startSearch'
- * depth and back buffers should be in different 4mb banks
- * to get better page hits if possible
- * input: size = size of block
- * align2 = 2^align2 bytes alignment
- * startSearch = linear offset from start of heap to begin search
- * return: pointer to the allocated block, 0 if error
- */
- PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch );
- /*
- * Free block starts at offset
- * input: pointer to a block
- * return: 0 if OK, -1 if error
- */
- int mmFreeMem( PMemBlock b );
- /*
- * Reserve 'size' bytes block start at offset
- * This is used to prevent allocation of memory already used
- * by the X server for the front buffer, pixmaps, and cursor
- * input: size, offset
- * output: 0 if OK, -1 if error
- */
- int mmReserveMem( memHeap_t *heap, int offset,int size );
- int mmFreeReserved( memHeap_t *heap, int offset );
- /*
- * destroy MM
- */
- void mmDestroy( memHeap_t *mmInit );
- /* For debuging purpose. */
- void mmDumpMemInfo( memHeap_t *mmInit );
- #endif