From c4857429c716f35e1fa054d1990cae28055d96d7 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 3 Jun 2008 10:20:49 -0700 Subject: Fix and hook up bufmgr code to the build. --- libdrm/intel/mm.h | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 libdrm/intel/mm.h (limited to 'libdrm/intel/mm.h') diff --git a/libdrm/intel/mm.h b/libdrm/intel/mm.h new file mode 100644 index 00000000..965bb0cd --- /dev/null +++ b/libdrm/intel/mm.h @@ -0,0 +1,88 @@ +/* + * 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 + * 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. + */ + + +/** + * Memory manager code. Primarily used by device drivers to manage texture + * heaps, etc. + */ + + +#ifndef MM_H +#define MM_H + +struct mem_block { + struct mem_block *next, *prev; + struct mem_block *next_free, *prev_free; + struct mem_block *heap; + int ofs,size; + unsigned int free:1; + unsigned int reserved:1; +}; + + + +/** + * input: total size in bytes + * return: a heap pointer if OK, NULL if error + */ +extern struct mem_block *drmmmInit(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 + */ +extern struct mem_block *drmmmAllocMem(struct mem_block *heap, int size, + int align2, int startSearch); + +/** + * Free block starts at offset + * input: pointer to a block + * return: 0 if OK, -1 if error + */ +extern int drmmmFreeMem(struct mem_block *b); + +/** + * Free block starts at offset + * input: pointer to a heap, start offset + * return: pointer to a block + */ +extern struct mem_block *drmmmFindBlock(struct mem_block *heap, int start); + +/** + * destroy MM + */ +extern void drmmmDestroy(struct mem_block *mmInit); + +/** + * For debuging purpose. + */ +extern void drmmmDumpMemInfo(const struct mem_block *mmInit); + +#endif -- cgit v1.2.3 From 57b4c4c32d3b474939775042bb8a17423def446d Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 11 Jun 2008 15:58:33 -0700 Subject: Move the renaming of mm.c symbols to #defines in the header. This reduces the diff from Mesa and reduces the illegibility of what I did. --- libdrm/intel/mm.h | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) (limited to 'libdrm/intel/mm.h') diff --git a/libdrm/intel/mm.h b/libdrm/intel/mm.h index 965bb0cd..49e3eecc 100644 --- a/libdrm/intel/mm.h +++ b/libdrm/intel/mm.h @@ -40,13 +40,21 @@ struct mem_block { unsigned int reserved:1; }; - +/* Rename the variables in the drm copy of this code so that it doesn't + * conflict with mesa or whoever else has copied it around. + */ +#define mmInit drm_mmInit +#define mmAllocMem drm_mmAllocMem +#define mmFreeMem drm_mmFreeMem +#define mmFindBlock drm_mmFindBlock +#define mmDestroy drm_mmDestroy +#define mmDumpMemInfo drm_mmDumpMemInfo /** * input: total size in bytes * return: a heap pointer if OK, NULL if error */ -extern struct mem_block *drmmmInit(int ofs, int size); +extern struct mem_block *mmInit(int ofs, int size); /** * Allocate 'size' bytes with 2^align2 bytes alignment, @@ -58,7 +66,7 @@ extern struct mem_block *drmmmInit(int ofs, int size); * startSearch = linear offset from start of heap to begin search * return: pointer to the allocated block, 0 if error */ -extern struct mem_block *drmmmAllocMem(struct mem_block *heap, int size, +extern struct mem_block *mmAllocMem(struct mem_block *heap, int size, int align2, int startSearch); /** @@ -66,23 +74,23 @@ extern struct mem_block *drmmmAllocMem(struct mem_block *heap, int size, * input: pointer to a block * return: 0 if OK, -1 if error */ -extern int drmmmFreeMem(struct mem_block *b); +extern int mmFreeMem(struct mem_block *b); /** * Free block starts at offset * input: pointer to a heap, start offset * return: pointer to a block */ -extern struct mem_block *drmmmFindBlock(struct mem_block *heap, int start); +extern struct mem_block *mmFindBlock(struct mem_block *heap, int start); /** * destroy MM */ -extern void drmmmDestroy(struct mem_block *mmInit); +extern void mmDestroy(struct mem_block *mmInit); /** * For debuging purpose. */ -extern void drmmmDumpMemInfo(const struct mem_block *mmInit); +extern void mmDumpMemInfo(const struct mem_block *mmInit); #endif -- cgit v1.2.3