From 17158c2f00f5bee29ec8239367fd5498f22e4a91 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jos=C3=A9=20Fonseca?= Date: Tue, 19 Feb 2008 12:24:42 +0900 Subject: [PATCH] Move mm.c code into util module. Using the u_ prefix to distingish the c source files that support gallium interfaces and those that have really no relation with gallium itself. --- .../auxiliary/pipebuffer/pb_bufmgr_mm.c | 302 +----------------- src/gallium/auxiliary/rtasm/Makefile | 5 +- src/gallium/auxiliary/rtasm/SConscript | 3 +- src/gallium/auxiliary/rtasm/rtasm_execmem.c | 2 +- src/gallium/auxiliary/util/Makefile | 3 +- src/gallium/auxiliary/util/SConscript | 1 + .../auxiliary/{rtasm/mm.c => util/u_mm.c} | 8 +- .../auxiliary/{rtasm/mm.h => util/u_mm.h} | 12 +- 8 files changed, 19 insertions(+), 317 deletions(-) rename src/gallium/auxiliary/{rtasm/mm.c => util/u_mm.c} (97%) rename src/gallium/auxiliary/{rtasm/mm.h => util/u_mm.h} (92%) diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c index 969aab51b57..983a1053475 100644 --- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c +++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c @@ -1,7 +1,6 @@ /************************************************************************** * * 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 @@ -40,6 +39,7 @@ #include "pipe/p_debug.h" #include "pipe/p_thread.h" #include "pipe/p_util.h" +#include "util/u_mm.h" #include "pb_buffer.h" #include "pb_bufmgr.h" @@ -50,306 +50,6 @@ #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; diff --git a/src/gallium/auxiliary/rtasm/Makefile b/src/gallium/auxiliary/rtasm/Makefile index 7c8ac607941..edfae2a204f 100644 --- a/src/gallium/auxiliary/rtasm/Makefile +++ b/src/gallium/auxiliary/rtasm/Makefile @@ -5,9 +5,8 @@ include $(TOP)/configs/current LIBNAME = rtasm DRIVER_SOURCES = \ - execmem.c \ - x86sse.c \ - mm.c + rtasm_execmem.c \ + rtasm_x86sse.c C_SOURCES = \ $(DRIVER_SOURCES) diff --git a/src/gallium/auxiliary/rtasm/SConscript b/src/gallium/auxiliary/rtasm/SConscript index de8456e0ca4..6eca1fe4c02 100644 --- a/src/gallium/auxiliary/rtasm/SConscript +++ b/src/gallium/auxiliary/rtasm/SConscript @@ -4,8 +4,7 @@ rtasm = env.ConvenienceLibrary( target = 'rtasm', source = [ 'rtasm_execmem.c', - 'rtasm_x86sse.c', - 'mm.c', + 'rtasm_x86sse.c' ]) auxiliaries.insert(0, rtasm) diff --git a/src/gallium/auxiliary/rtasm/rtasm_execmem.c b/src/gallium/auxiliary/rtasm/rtasm_execmem.c index cb13db24983..9c78fa56269 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_execmem.c +++ b/src/gallium/auxiliary/rtasm/rtasm_execmem.c @@ -46,7 +46,7 @@ #include #include -#include "mm.h" +#include "util/u_mm.h" #define EXEC_HEAP_SIZE (10*1024*1024) diff --git a/src/gallium/auxiliary/util/Makefile b/src/gallium/auxiliary/util/Makefile index b8cb148c4f5..7cc2aa44f96 100644 --- a/src/gallium/auxiliary/util/Makefile +++ b/src/gallium/auxiliary/util/Makefile @@ -7,7 +7,8 @@ LIBNAME = util DRIVER_SOURCES = \ p_debug.c \ p_tile.c \ - p_util.c + p_util.c \ + u_mm.c C_SOURCES = \ $(DRIVER_SOURCES) diff --git a/src/gallium/auxiliary/util/SConscript b/src/gallium/auxiliary/util/SConscript index b126cf44d6f..4717941434f 100644 --- a/src/gallium/auxiliary/util/SConscript +++ b/src/gallium/auxiliary/util/SConscript @@ -6,6 +6,7 @@ util = env.ConvenienceLibrary( 'p_debug.c', 'p_tile.c', 'p_util.c', + 'u_mm.c', ]) auxiliaries.insert(0, util) diff --git a/src/gallium/auxiliary/rtasm/mm.c b/src/gallium/auxiliary/util/u_mm.c similarity index 97% rename from src/gallium/auxiliary/rtasm/mm.c rename to src/gallium/auxiliary/util/u_mm.c index 15f50491daf..b49ae074e0e 100644 --- a/src/gallium/auxiliary/rtasm/mm.c +++ b/src/gallium/auxiliary/util/u_mm.c @@ -1,5 +1,5 @@ -/* - * GLX Hardware Device Driver common code +/************************************************************************** + * * Copyright (C) 1999 Wittawat Yamwong * * Permission is hereby granted, free of charge, to any person obtaining a @@ -20,14 +20,14 @@ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * - */ + **************************************************************************/ #include "pipe/p_compiler.h" #include "pipe/p_util.h" #include "pipe/p_debug.h" -#include "mm.h" +#include "util/u_mm.h" void diff --git a/src/gallium/auxiliary/rtasm/mm.h b/src/gallium/auxiliary/util/u_mm.h similarity index 92% rename from src/gallium/auxiliary/rtasm/mm.h rename to src/gallium/auxiliary/util/u_mm.h index f469b18d3e6..b226b101cbe 100644 --- a/src/gallium/auxiliary/rtasm/mm.h +++ b/src/gallium/auxiliary/util/u_mm.h @@ -1,5 +1,5 @@ -/* - * GLX Hardware Device Driver common code +/************************************************************************** + * * Copyright (C) 1999 Wittawat Yamwong * * Permission is hereby granted, free of charge, to any person obtaining a @@ -19,17 +19,19 @@ * 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 * Memory manager code. Primarily used by device drivers to manage texture * heaps, etc. */ -#ifndef MM_H -#define MM_H +#ifndef _U_MM_H_ +#define _U_MM_H_ struct mem_block { -- 2.30.2