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authorKeith Whitwell <keith@tungstengraphics.com>2005-10-18 13:29:59 +0000
committerKeith Whitwell <keith@tungstengraphics.com>2005-10-18 13:29:59 +0000
commit005469005df6ba5f80e382d5371c6d069c27738b (patch)
tree3724212c691417d4dc08213d02b217d346cb25c3 /src/mesa/drivers/dri/common
parent05e1a49ab4b0d34aba4bdf55ed7ffe5b6d4411f8 (diff)
Add _mesa_exec_malloc() and _mesa_exec_free() for allocating
executable memory. Based on Thomas Hellstrom's patch. TODO: glapi.c also needs this, but cannot access this code.
Diffstat (limited to 'src/mesa/drivers/dri/common')
-rw-r--r--src/mesa/drivers/dri/common/mm.c196
-rw-r--r--src/mesa/drivers/dri/common/mm.h82
2 files changed, 0 insertions, 278 deletions
diff --git a/src/mesa/drivers/dri/common/mm.c b/src/mesa/drivers/dri/common/mm.c
deleted file mode 100644
index 5781d9936c..0000000000
--- a/src/mesa/drivers/dri/common/mm.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * GLX Hardware Device Driver common code
- * Copyright (C) 1999 Wittawat Yamwong
- *
- * 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
- * WITTAWAT YAMWONG, 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.
- *
- */
-/* $XFree86: xc/lib/GL/mesa/src/drv/common/mm.c,v 1.4 2002/10/30 12:51:27 alanh Exp $ */
-
-#include <stdlib.h>
-#include <stdio.h>
-
-#include "mm.h"
-
-
-void mmDumpMemInfo( memHeap_t *heap )
-{
- TMemBlock *p;
-
- fprintf(stderr, "Memory heap %p:\n", (void *)heap);
- if (heap == 0) {
- fprintf(stderr, " heap == 0\n");
- } else {
- p = (TMemBlock *)heap;
- while (p) {
- fprintf(stderr, " Offset:%08x, Size:%08x, %c%c\n",p->ofs,p->size,
- p->free ? '.':'U',
- p->reserved ? 'R':'.');
- p = p->next;
- }
- }
- fprintf(stderr, "End of memory blocks\n");
-}
-
-memHeap_t *mmInit(int ofs,
- int size)
-{
- PMemBlock blocks;
-
- if (size <= 0) {
- return NULL;
- }
- blocks = (TMemBlock *) calloc(1,sizeof(TMemBlock));
- if (blocks) {
- blocks->ofs = ofs;
- blocks->size = size;
- blocks->free = 1;
- return (memHeap_t *)blocks;
- } else
- return NULL;
-}
-
-
-static TMemBlock* SliceBlock(TMemBlock *p,
- int startofs, int size,
- int reserved, int alignment)
-{
- TMemBlock *newblock;
-
- /* break left */
- if (startofs > p->ofs) {
- newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock));
- if (!newblock)
- return NULL;
- newblock->ofs = startofs;
- newblock->size = p->size - (startofs - p->ofs);
- newblock->free = 1;
- newblock->next = p->next;
- p->size -= newblock->size;
- p->next = newblock;
- p = newblock;
- }
-
- /* break right */
- if (size < p->size) {
- newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock));
- if (!newblock)
- return NULL;
- newblock->ofs = startofs + size;
- newblock->size = p->size - size;
- newblock->free = 1;
- newblock->next = p->next;
- p->size = size;
- p->next = newblock;
- }
-
- /* p = middle block */
- p->align = alignment;
- p->free = 0;
- p->reserved = reserved;
- return p;
-}
-
-PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch)
-{
- int mask,startofs,endofs;
- TMemBlock *p;
-
- if (!heap || align2 < 0 || size <= 0)
- return NULL;
- mask = (1 << align2)-1;
- startofs = 0;
- p = (TMemBlock *)heap;
- while (p) {
- if ((p)->free) {
- startofs = (p->ofs + mask) & ~mask;
- if ( startofs < startSearch ) {
- startofs = startSearch;
- }
- endofs = startofs+size;
- if (endofs <= (p->ofs+p->size))
- break;
- }
- p = p->next;
- }
- if (!p)
- return NULL;
- p = SliceBlock(p,startofs,size,0,mask+1);
- p->heap = heap;
- return p;
-}
-
-static __inline__ int Join2Blocks(TMemBlock *p)
-{
- if (p->free && p->next && p->next->free) {
- TMemBlock *q = p->next;
- p->size += q->size;
- p->next = q->next;
- free(q);
- return 1;
- }
- return 0;
-}
-
-int mmFreeMem(PMemBlock b)
-{
- TMemBlock *p,*prev;
-
- if (!b)
- return 0;
- if (!b->heap) {
- fprintf(stderr, "no heap\n");
- return -1;
- }
- p = b->heap;
- prev = NULL;
- while (p && p != b) {
- prev = p;
- p = p->next;
- }
- if (!p || p->free || p->reserved) {
- if (!p)
- fprintf(stderr, "block not found in heap\n");
- else if (p->free)
- fprintf(stderr, "block already free\n");
- else
- fprintf(stderr, "block is reserved\n");
- return -1;
- }
- p->free = 1;
- Join2Blocks(p);
- if (prev)
- Join2Blocks(prev);
- return 0;
-}
-
-
-void mmDestroy(memHeap_t *heap)
-{
- TMemBlock *p,*q;
-
- if (!heap)
- return;
- p = (TMemBlock *)heap;
- while (p) {
- q = p->next;
- free(p);
- p = q;
- }
-}
diff --git a/src/mesa/drivers/dri/common/mm.h b/src/mesa/drivers/dri/common/mm.h
deleted file mode 100644
index 176910d70b..0000000000
--- a/src/mesa/drivers/dri/common/mm.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * 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;
- unsigned int free:1;
- unsigned 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; }
-
-/*
- * input: total size in bytes
- * return: a heap pointer if OK, NULL if error
- */
-memHeap_t *mmInit( 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 );
-
-/*
- * destroy MM
- */
-void mmDestroy( memHeap_t *mmInit );
-
-/* For debuging purpose. */
-void mmDumpMemInfo( memHeap_t *mmInit );
-
-#endif