2 * Copyright (c) 2006 Jeffrey M. Hsu. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of The DragonFly Project nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific, prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
29 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $DragonFly: src/sys/dev/acpica5/Osd/OsdCache.c,v 1.4 2007/03/26 02:34:39 y0netan1 Exp $
35 #include <sys/objcache.h>
38 struct objcache *cache;
39 struct objcache_malloc_args args;
43 * Add some magic numbers to catch double-frees earlier rather
54 #define TRACK_ALLOCATED 0x7AF45533
55 #define TRACK_FREED 0x7B056644
57 #define OBJHEADSIZE sizeof(struct acpiobjhead)
61 #ifndef ACPI_USE_LOCAL_CACHE
64 AcpiOsCreateCache(char *CacheName, UINT16 ObjectSize, UINT16 MaxDepth,
65 ACPI_CACHE_T **ReturnCache)
69 cache = kmalloc(sizeof(*cache), M_TEMP, M_WAITOK);
70 cache->args.objsize = OBJHEADSIZE + ObjectSize;
71 cache->args.mtype = M_CACHE;
72 cache->cache = objcache_create(CacheName, 0, 0, NULL, NULL,
73 NULL, objcache_malloc_alloc, objcache_malloc_free, &cache->args);
79 AcpiOsDeleteCache(ACPI_CACHE_T *Cache)
81 objcache_destroy(Cache->cache);
88 AcpiOsPurgeCache(ACPI_CACHE_T *Cache)
90 struct objcache *reclaimlist[] = { Cache->cache };
92 objcache_reclaimlist(reclaimlist, 1, M_WAITOK);
97 AcpiOsAcquireObject(ACPI_CACHE_T *Cache)
99 struct acpiobjhead *head;
101 head = objcache_get(Cache->cache, M_WAITOK);
102 bzero(head, Cache->args.objsize);
103 head->state = TRACK_ALLOCATED;
106 head->func = "nowhere";
114 _AcpiOsReleaseObject(ACPI_CACHE_T *Cache, void *Object,
115 const char *func, int line)
117 AcpiOsReleaseObject(ACPI_CACHE_T *Cache, void *Object)
120 struct acpiobjhead *head = (void *)((char *)Object - OBJHEADSIZE);
123 if (head->cache != Cache) {
124 kprintf("%s: object %p belongs to %p, not %p\n",
125 __func__, Object, head->cache, Cache);
128 if (head->state != TRACK_ALLOCATED) {
129 if (head->state == TRACK_FREED) {
131 kprintf("%s: Double Free %p, %s:%d, first %s:%d\n",
132 __func__, Object, func, line, head->func,
135 kprintf("%s: Double Free %p\n", __func__, Object);
138 kprintf("AcpiOsReleaseObject: Bad object %p (%08x)\n",
139 Object, head->state);
142 head->state = TRACK_FREED;
147 objcache_put(Cache->cache, head);