7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * GLX Hardware Device Driver common code
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * Copyright (C) 1999 Wittawat Yamwong
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * Permission is hereby granted, free of charge, to any person obtaining a
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * copy of this software and associated documentation files (the "Software"),
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * to deal in the Software without restriction, including without limitation
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * the rights to use, copy, modify, merge, publish, distribute, sublicense,
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * and/or sell copies of the Software, and to permit persons to whom the
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * Software is furnished to do so, subject to the following conditions:
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * The above copyright notice and this permission notice shall be included
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * in all copies or substantial portions of the Software.
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * Memory manager code. Primarily used by device drivers to manage texture
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * heaps, etc.
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync/* Rename the variables in the drm copy of this code so that it doesn't
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * conflict with mesa or whoever else has copied it around.
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * input: total size in bytes
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * return: a heap pointer if OK, NULL if error
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * Allocate 'size' bytes with 2^align2 bytes alignment,
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * restrict the search to free memory after 'startSearch'
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * depth and back buffers should be in different 4mb banks
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * to get better page hits if possible
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * input: size = size of block
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * align2 = 2^align2 bytes alignment
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * startSearch = linear offset from start of heap to begin search
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * return: pointer to the allocated block, 0 if error
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsyncextern struct mem_block *mmAllocMem(struct mem_block *heap, int size,
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * Free block starts at offset
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * input: pointer to a block
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * return: 0 if OK, -1 if error
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * Free block starts at offset
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * input: pointer to a heap, start offset
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * return: pointer to a block
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsyncextern struct mem_block *mmFindBlock(struct mem_block *heap, int start);
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * destroy MM
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsync * For debuging purpose.
7a0d67332f33bc21290d63bc7c8150b0cf0a4b21vboxsyncextern void mmDumpMemInfo(const struct mem_block *mmInit);