681cfb39e1
This does not come effect until non-orthogonal part is commited. Approved by: jkh Obtained from: ACPI for FreeBSD CVS repository.
173 lines
5.8 KiB
C
173 lines
5.8 KiB
C
/*-
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* Copyright (c) 1999, 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: aml_memman.h,v 1.9 2000/08/09 14:47:43 iwasaki Exp $
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* $FreeBSD$
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*/
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#ifndef _MEMMAN_H_
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#define _MEMMAN_H_
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/*
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* Generic Memory Management
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*/
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#include <sys/param.h>
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#include <sys/queue.h>
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/* memory block */
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struct memman_block {
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LIST_ENTRY(memman_block) links;
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void *block;
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unsigned static_mem; /* static memory or not */
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unsigned int allocated; /* number of allocated chunks */
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unsigned int available; /* number of available chunks */
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unsigned int allocated_mem; /* block + misc (in bytes) */
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}__attribute__((packed));
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LIST_HEAD(memman_block_list, memman_block);
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/* memory node in block */
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struct memman_node {
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LIST_ENTRY(memman_node) links;
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void *node;
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struct memman_block *memblock;
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}__attribute__((packed));
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LIST_HEAD(memman_node_list, memman_node);
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/* memory type id */
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extern unsigned int memid_unkown;
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/* memory block manager */
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struct memman_blockman {
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unsigned int size; /* size of chunk */
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unsigned int available; /* total # of available chunks */
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void *initial_block; /* initial memory storage */
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unsigned initialized; /* initialized or not */
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struct memman_block_list block_list;
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struct memman_node_list free_node_list;
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struct memman_node_list occupied_node_list;
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};
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/* memory size histogram */
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#define MEMMAN_HISTOGRAM_SIZE 20
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struct memman_histogram {
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int mem_size;
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int count;
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};
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/* flex size memory allocation info */
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struct memman_flexmem_info {
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LIST_ENTRY(memman_flexmem_info) links;
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void *addr;
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size_t mem_size;
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}__attribute__((packed));
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LIST_HEAD(memman_flexmem_info_list, memman_flexmem_info);
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/* memory manager */
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struct memman {
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struct memman_blockman *blockman;
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unsigned int max_memid; /* max number of valid memid */
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/* fixed size memory blocks */
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unsigned int alloc_called; /* memman_alloc() calling */
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unsigned int free_called; /* memman_free() calling */
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unsigned int salloc_called; /* malloc() calling */
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unsigned int sfree_called; /* free() calling */
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size_t required_mem; /* total required memory (in bytes) */
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size_t allocated_mem; /* total malloc()ed memory */
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size_t reclaimed_mem; /* total free()ed memory */
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/* flex size memory blocks */
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unsigned int flex_alloc_called; /* memman_alloc_flexsize() calling */
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unsigned int flex_free_called; /* memman_free_flexsize() calling */
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unsigned int flex_salloc_called;/* malloc() calling */
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unsigned int flex_sfree_called; /* free() calling */
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size_t flex_required_mem; /* total required memory (in bytes) */
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size_t flex_allocated_mem;/* total malloc()ed memory */
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size_t flex_reclaimed_mem;/* total free()ed memory */
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size_t flex_mem_size_min; /* min size of allocated memory */
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size_t flex_mem_size_max; /* max size of allocated memory */
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size_t flex_peak_mem_usage;/* memory usage at a peak period */
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/* stuff for more detailed statistical information */
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struct memman_histogram *flex_mem_histogram;
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unsigned int flex_mem_histogram_ptr;
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int flex_mem_histogram_initial_tolerance;
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unsigned flex_mem_initialized;
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struct memman_flexmem_info_list flexmem_info_list;
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};
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#define MEMMAN_BLOCKNODE_SIZE(entries) sizeof(struct memman_block) + \
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sizeof(struct memman_node) * entries
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#ifndef ROUNDUP_UNIT
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#define ROUNDUP_UNIT 4
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#endif
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#if !defined(MEMMAN_INITIAL_SIZE) || MEMMAN_INITIAL_SIZE < 2048
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#define MEMMAN_INITIAL_SIZE 2048
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#endif
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#if !defined(MEMMAN_INCR_SIZE) || MEMMAN_INCR_SIZE < 512
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#define MEMMAN_INCR_SIZE 512
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#endif
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#define MEMMAN_INITIALSTORAGE_DESC(type, name) \
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static struct { \
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char blocknodes[MEMMAN_BLOCKNODE_SIZE(MEMMAN_INITIAL_SIZE)]; \
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type realblock[MEMMAN_INITIAL_SIZE]; \
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} name
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#define MEMMAN_MEMBLOCK_DESC(size, initial_storage) \
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{ size, MEMMAN_INITIAL_SIZE, &initial_storage, 0 }
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#define MEMMAN_MEMMANAGER_DESC(blockman, max_memid, histogram, tolerance) \
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{ blockman, max_memid, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
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0, 0, 0, histogram, 0, tolerance, 0}
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void *memman_alloc(struct memman *, unsigned int);
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void *memman_alloc_flexsize(struct memman *, size_t);
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void memman_free(struct memman *, unsigned int, void *);
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void memman_free_flexsize(struct memman *, void *);
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void memman_freeall(struct memman *);
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void memman_statistics(struct memman *);
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size_t memman_memid2size(struct memman *, unsigned int);
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#ifdef _KERNEL
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#define MEMMAN_SYSMALLOC(size) malloc(size, M_MEMMAN, M_WAITOK)
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#define MEMMAN_SYSFREE(ptr) free(ptr, M_MEMMAN)
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#define MEMMAN_SYSABORT() /* no abort in kernel */
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#else /* !_KERNEL */
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#define MEMMAN_SYSMALLOC(size) malloc(size)
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#define MEMMAN_SYSFREE(ptr) free(ptr)
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#define MEMMAN_SYSABORT() abort()
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#endif /* _KERNEL */
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#endif /* !_MEMMAN_H_ */
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