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Diffstat (limited to 'src/mesa/pipe/pipebuffer/pb_bufmgr_mm.c')
-rw-r--r--src/mesa/pipe/pipebuffer/pb_bufmgr_mm.c593
1 files changed, 0 insertions, 593 deletions
diff --git a/src/mesa/pipe/pipebuffer/pb_bufmgr_mm.c b/src/mesa/pipe/pipebuffer/pb_bufmgr_mm.c
deleted file mode 100644
index 8b1b51c0e2..0000000000
--- a/src/mesa/pipe/pipebuffer/pb_bufmgr_mm.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
- * Copyright 1999 Wittawat Yamwong
- * 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, sub license, 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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.
- *
- **************************************************************************/
-
-/**
- * \file
- * Buffer manager using the old texture memory manager.
- *
- * \author José Fonseca <jrfonseca@tungstengraphics.com>
- */
-
-
-#include "linked_list.h"
-
-#include "p_defines.h"
-#include "p_debug.h"
-#include "p_thread.h"
-#include "p_util.h"
-#include "pb_buffer.h"
-#include "pb_bufmgr.h"
-
-
-/**
- * Convenience macro (type safe).
- */
-#define SUPER(__derived) (&(__derived)->base)
-
-
-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;
-};
-
-
-#ifdef DEBUG
-/**
- * For debugging purposes.
- */
-static void
-mmDumpMemInfo(const struct mem_block *heap)
-{
- debug_printf("Memory heap %p:\n", (void *)heap);
- if (heap == 0) {
- debug_printf(" heap == 0\n");
- } else {
- const struct mem_block *p;
-
- for(p = heap->next; p != heap; p = p->next) {
- debug_printf(" Offset:%08x, Size:%08x, %c%c\n",p->ofs,p->size,
- p->free ? 'F':'.',
- p->reserved ? 'R':'.');
- }
-
- debug_printf("\nFree list:\n");
-
- for(p = heap->next_free; p != heap; p = p->next_free) {
- debug_printf(" FREE Offset:%08x, Size:%08x, %c%c\n",p->ofs,p->size,
- p->free ? 'F':'.',
- p->reserved ? 'R':'.');
- }
-
- }
- debug_printf("End of memory blocks\n");
-}
-#endif
-
-
-/**
- * input: total size in bytes
- * return: a heap pointer if OK, NULL if error
- */
-static struct mem_block *
-mmInit(int ofs, int size)
-{
- struct mem_block *heap, *block;
-
- if (size <= 0)
- return NULL;
-
- heap = CALLOC_STRUCT(mem_block);
- if (!heap)
- return NULL;
-
- block = CALLOC_STRUCT(mem_block);
- if (!block) {
- FREE(heap);
- return NULL;
- }
-
- heap->next = block;
- heap->prev = block;
- heap->next_free = block;
- heap->prev_free = block;
-
- block->heap = heap;
- block->next = heap;
- block->prev = heap;
- block->next_free = heap;
- block->prev_free = heap;
-
- block->ofs = ofs;
- block->size = size;
- block->free = 1;
-
- return heap;
-}
-
-
-static struct mem_block *
-SliceBlock(struct mem_block *p,
- int startofs, int size,
- int reserved, int alignment)
-{
- struct mem_block *newblock;
-
- /* break left [p, newblock, p->next], then p = newblock */
- if (startofs > p->ofs) {
- newblock = CALLOC_STRUCT(mem_block);
- if (!newblock)
- return NULL;
- newblock->ofs = startofs;
- newblock->size = p->size - (startofs - p->ofs);
- newblock->free = 1;
- newblock->heap = p->heap;
-
- newblock->next = p->next;
- newblock->prev = p;
- p->next->prev = newblock;
- p->next = newblock;
-
- newblock->next_free = p->next_free;
- newblock->prev_free = p;
- p->next_free->prev_free = newblock;
- p->next_free = newblock;
-
- p->size -= newblock->size;
- p = newblock;
- }
-
- /* break right, also [p, newblock, p->next] */
- if (size < p->size) {
- newblock = CALLOC_STRUCT(mem_block);
- if (!newblock)
- return NULL;
- newblock->ofs = startofs + size;
- newblock->size = p->size - size;
- newblock->free = 1;
- newblock->heap = p->heap;
-
- newblock->next = p->next;
- newblock->prev = p;
- p->next->prev = newblock;
- p->next = newblock;
-
- newblock->next_free = p->next_free;
- newblock->prev_free = p;
- p->next_free->prev_free = newblock;
- p->next_free = newblock;
-
- p->size = size;
- }
-
- /* p = middle block */
- p->free = 0;
-
- /* Remove p from the free list:
- */
- p->next_free->prev_free = p->prev_free;
- p->prev_free->next_free = p->next_free;
-
- p->next_free = 0;
- p->prev_free = 0;
-
- p->reserved = reserved;
- return p;
-}
-
-
-/**
- * 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
- */
-static struct mem_block *
-mmAllocMem(struct mem_block *heap, int size, int align2, int startSearch)
-{
- struct mem_block *p;
- const int mask = (1 << align2)-1;
- int startofs = 0;
- int endofs;
-
- if (!heap || align2 < 0 || size <= 0)
- return NULL;
-
- for (p = heap->next_free; p != heap; p = p->next_free) {
- assert(p->free);
-
- startofs = (p->ofs + mask) & ~mask;
- if ( startofs < startSearch ) {
- startofs = startSearch;
- }
- endofs = startofs+size;
- if (endofs <= (p->ofs+p->size))
- break;
- }
-
- if (p == heap)
- return NULL;
-
- assert(p->free);
- p = SliceBlock(p,startofs,size,0,mask+1);
-
- return p;
-}
-
-
-#if 0
-/**
- * Free block starts at offset
- * input: pointer to a heap, start offset
- * return: pointer to a block
- */
-static struct mem_block *
-mmFindBlock(struct mem_block *heap, int start)
-{
- struct mem_block *p;
-
- for (p = heap->next; p != heap; p = p->next) {
- if (p->ofs == start)
- return p;
- }
-
- return NULL;
-}
-#endif
-
-
-static INLINE int
-Join2Blocks(struct mem_block *p)
-{
- /* XXX there should be some assertions here */
-
- /* NOTE: heap->free == 0 */
-
- if (p->free && p->next->free) {
- struct mem_block *q = p->next;
-
- assert(p->ofs + p->size == q->ofs);
- p->size += q->size;
-
- p->next = q->next;
- q->next->prev = p;
-
- q->next_free->prev_free = q->prev_free;
- q->prev_free->next_free = q->next_free;
-
- FREE(q);
- return 1;
- }
- return 0;
-}
-
-
-/**
- * Free block starts at offset
- * input: pointer to a block
- * return: 0 if OK, -1 if error
- */
-static int
-mmFreeMem(struct mem_block *b)
-{
- if (!b)
- return 0;
-
- if (b->free) {
- debug_printf("block already free\n");
- return -1;
- }
- if (b->reserved) {
- debug_printf("block is reserved\n");
- return -1;
- }
-
- b->free = 1;
- b->next_free = b->heap->next_free;
- b->prev_free = b->heap;
- b->next_free->prev_free = b;
- b->prev_free->next_free = b;
-
- Join2Blocks(b);
- if (b->prev != b->heap)
- Join2Blocks(b->prev);
-
- return 0;
-}
-
-
-/**
- * destroy MM
- */
-static void
-mmDestroy(struct mem_block *heap)
-{
- struct mem_block *p;
-
- if (!heap)
- return;
-
- for (p = heap->next; p != heap; ) {
- struct mem_block *next = p->next;
- FREE(p);
- p = next;
- }
-
- FREE(heap);
-}
-
-
-struct mm_pb_manager
-{
- struct pb_manager base;
-
- _glthread_Mutex mutex;
-
- size_t size;
- struct mem_block *heap;
-
- size_t align2;
-
- struct pb_buffer *buffer;
- void *map;
-};
-
-
-static INLINE struct mm_pb_manager *
-mm_pb_manager(struct pb_manager *mgr)
-{
- assert(mgr);
- return (struct mm_pb_manager *)mgr;
-}
-
-
-struct mm_buffer
-{
- struct pb_buffer base;
-
- struct mm_pb_manager *mgr;
-
- struct mem_block *block;
-};
-
-
-static INLINE struct mm_buffer *
-mm_buffer(struct pb_buffer *buf)
-{
- assert(buf);
- return (struct mm_buffer *)buf;
-}
-
-
-static void
-mm_buffer_destroy(struct pb_buffer *buf)
-{
- struct mm_buffer *mm_buf = mm_buffer(buf);
- struct mm_pb_manager *mm = mm_buf->mgr;
-
- assert(buf->base.refcount == 0);
-
- _glthread_LOCK_MUTEX(mm->mutex);
- mmFreeMem(mm_buf->block);
- FREE(buf);
- _glthread_UNLOCK_MUTEX(mm->mutex);
-}
-
-
-static void *
-mm_buffer_map(struct pb_buffer *buf,
- unsigned flags)
-{
- struct mm_buffer *mm_buf = mm_buffer(buf);
- struct mm_pb_manager *mm = mm_buf->mgr;
-
- return (unsigned char *) mm->map + mm_buf->block->ofs;
-}
-
-
-static void
-mm_buffer_unmap(struct pb_buffer *buf)
-{
- /* No-op */
-}
-
-
-static void
-mm_buffer_get_base_buffer(struct pb_buffer *buf,
- struct pb_buffer **base_buf,
- unsigned *offset)
-{
- struct mm_buffer *mm_buf = mm_buffer(buf);
- struct mm_pb_manager *mm = mm_buf->mgr;
- pb_get_base_buffer(mm->buffer, base_buf, offset);
- *offset += mm_buf->block->ofs;
-}
-
-
-static const struct pb_vtbl
-mm_buffer_vtbl = {
- mm_buffer_destroy,
- mm_buffer_map,
- mm_buffer_unmap,
- mm_buffer_get_base_buffer
-};
-
-
-static struct pb_buffer *
-mm_bufmgr_create_buffer(struct pb_manager *mgr,
- size_t size,
- const struct pb_desc *desc)
-{
- struct mm_pb_manager *mm = mm_pb_manager(mgr);
- struct mm_buffer *mm_buf;
-
- /* We don't handle alignments larger then the one initially setup */
- assert(desc->alignment % (1 << mm->align2) == 0);
- if(desc->alignment % (1 << mm->align2))
- return NULL;
-
- _glthread_LOCK_MUTEX(mm->mutex);
-
- mm_buf = CALLOC_STRUCT(mm_buffer);
- if (!mm_buf) {
- _glthread_UNLOCK_MUTEX(mm->mutex);
- return NULL;
- }
-
- mm_buf->base.base.refcount = 1;
- mm_buf->base.base.alignment = desc->alignment;
- mm_buf->base.base.usage = desc->usage;
- mm_buf->base.base.size = size;
-
- mm_buf->base.vtbl = &mm_buffer_vtbl;
-
- mm_buf->mgr = mm;
-
- mm_buf->block = mmAllocMem(mm->heap, size, mm->align2, 0);
- if(!mm_buf->block) {
- debug_printf("warning: heap full\n");
-#if 0
- mmDumpMemInfo(mm->heap);
-#endif
-
- mm_buf->block = mmAllocMem(mm->heap, size, mm->align2, 0);
- if(!mm_buf->block) {
- assert(0);
- FREE(mm_buf);
- _glthread_UNLOCK_MUTEX(mm->mutex);
- return NULL;
- }
- }
-
- /* Some sanity checks */
- assert(0 <= mm_buf->block->ofs && mm_buf->block->ofs < mm->size);
- assert(size <= mm_buf->block->size && mm_buf->block->ofs + mm_buf->block->size <= mm->size);
-
- _glthread_UNLOCK_MUTEX(mm->mutex);
- return SUPER(mm_buf);
-}
-
-
-static void
-mm_bufmgr_destroy(struct pb_manager *mgr)
-{
- struct mm_pb_manager *mm = mm_pb_manager(mgr);
-
- _glthread_LOCK_MUTEX(mm->mutex);
-
- mmDestroy(mm->heap);
-
- pb_unmap(mm->buffer);
- pb_reference(&mm->buffer, NULL);
-
- _glthread_UNLOCK_MUTEX(mm->mutex);
-
- FREE(mgr);
-}
-
-
-struct pb_manager *
-mm_bufmgr_create_from_buffer(struct pb_buffer *buffer,
- size_t size, size_t align2)
-{
- struct mm_pb_manager *mm;
-
- if(!buffer)
- return NULL;
-
- mm = CALLOC_STRUCT(mm_pb_manager);
- if (!mm)
- return NULL;
-
- mm->base.create_buffer = mm_bufmgr_create_buffer;
- mm->base.destroy = mm_bufmgr_destroy;
-
- mm->size = size;
- mm->align2 = align2; /* 64-byte alignment */
-
- _glthread_INIT_MUTEX(mm->mutex);
-
- mm->buffer = buffer;
-
- mm->map = pb_map(mm->buffer,
- PIPE_BUFFER_USAGE_CPU_READ |
- PIPE_BUFFER_USAGE_CPU_WRITE);
- if(!mm->map)
- goto failure;
-
- mm->heap = mmInit(0, size);
- if (!mm->heap)
- goto failure;
-
- return SUPER(mm);
-
-failure:
-if(mm->heap)
- mmDestroy(mm->heap);
- if(mm->map)
- pb_unmap(mm->buffer);
- if(mm)
- FREE(mm);
- return NULL;
-}
-
-
-struct pb_manager *
-mm_bufmgr_create(struct pb_manager *provider,
- size_t size, size_t align2)
-{
- struct pb_buffer *buffer;
- struct pb_manager *mgr;
- struct pb_desc desc;
-
- assert(provider);
- assert(provider->create_buffer);
-
- memset(&desc, 0, sizeof(desc));
- desc.alignment = 1 << align2;
-
- buffer = provider->create_buffer(provider, size, &desc);
- if (!buffer)
- return NULL;
-
- mgr = mm_bufmgr_create_from_buffer(buffer, size, align2);
- if (!mgr) {
- pb_reference(&buffer, NULL);
- return NULL;
- }
-
- return mgr;
-}
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