2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _OPENSOLARIS_SYS_KMEM_H_
30 #define _OPENSOLARIS_SYS_KMEM_H_
33 #include <sys/param.h>
34 #include <sys/malloc.h>
36 #include <sys/counter.h>
40 #include <vm/vm_extern.h>
42 MALLOC_DECLARE(M_SOLARIS);
44 #define POINTER_IS_VALID(p) (!((uintptr_t)(p) & 0x3))
45 #define POINTER_INVALIDATE(pp) (*(pp) = (void *)((uintptr_t)(*(pp)) | 0x1))
47 #define KM_SLEEP M_WAITOK
48 #define KM_PUSHPAGE M_WAITOK
49 #define KM_NOSLEEP M_NOWAIT
50 #define KM_NORMALPRI 0
51 #define KMC_NODEBUG UMA_ZONE_NODUMP
53 typedef struct vmem vmem_t;
55 extern char *kmem_asprintf(const char *, ...);
56 extern char *kmem_vasprintf(const char *fmt, va_list ap);
58 typedef struct kmem_cache {
60 #if !defined(KMEM_DEBUG)
65 int (*kc_constructor)(void *, void *, int);
66 void (*kc_destructor)(void *, void *);
70 extern uint64_t spl_kmem_cache_inuse(kmem_cache_t *cache);
71 extern uint64_t spl_kmem_cache_entry_size(kmem_cache_t *cache);
73 void *zfs_kmem_alloc(size_t size, int kmflags);
74 void zfs_kmem_free(void *buf, size_t size);
75 uint64_t kmem_size(void);
76 kmem_cache_t *kmem_cache_create(char *name, size_t bufsize, size_t align,
77 int (*constructor)(void *, void *, int), void (*destructor)(void *, void *),
78 void (*reclaim)(void *) __unused, void *private, vmem_t *vmp, int cflags);
79 void kmem_cache_destroy(kmem_cache_t *cache);
80 void *kmem_cache_alloc(kmem_cache_t *cache, int flags);
81 void kmem_cache_free(kmem_cache_t *cache, void *buf);
82 boolean_t kmem_cache_reap_active(void);
83 void kmem_cache_reap_soon(kmem_cache_t *);
85 int kmem_debugging(void);
86 void *calloc(size_t n, size_t s);
89 #define kmem_cache_reap_now kmem_cache_reap_soon
90 #define freemem vm_free_count()
91 #define minfree vm_cnt.v_free_min
92 #define kmem_alloc(size, kmflags) zfs_kmem_alloc((size), (kmflags))
93 #define kmem_zalloc(size, kmflags) \
94 zfs_kmem_alloc((size), (kmflags) | M_ZERO)
95 #define kmem_free(buf, size) zfs_kmem_free((buf), (size))
101 * At the moment, we just need it for the type. We redirect the alloc/free
102 * routines to the usual Free and Malloc in that environment.
104 typedef int kmem_cache_t;
105 #endif /* _STANDALONE */
107 #endif /* _OPENSOLARIS_SYS_KMEM_H_ */