xref: /freebsd/sys/cddl/compat/opensolaris/sys/kmem.h (revision aa0a1e58)
1 /*-
2  * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
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.
13  *
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
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _OPENSOLARIS_SYS_KMEM_H_
30 #define	_OPENSOLARIS_SYS_KMEM_H_
31 
32 #include <sys/param.h>
33 #include <sys/proc.h>
34 #include <sys/malloc.h>
35 
36 #include <vm/uma.h>
37 #include <vm/vm.h>
38 #include <vm/vm_extern.h>
39 
40 MALLOC_DECLARE(M_SOLARIS);
41 
42 #define	POINTER_IS_VALID(p)	(!((uintptr_t)(p) & 0x3))
43 #define	POINTER_INVALIDATE(pp)	(*(pp) = (void *)((uintptr_t)(*(pp)) | 0x1))
44 
45 #define	KM_SLEEP		M_WAITOK
46 #define	KM_PUSHPAGE		M_WAITOK
47 #define	KM_NOSLEEP		M_NOWAIT
48 #define	KMC_NODEBUG		0
49 #define	KMC_NOTOUCH		0
50 
51 typedef struct kmem_cache {
52 	char		kc_name[32];
53 #if defined(_KERNEL) && !defined(KMEM_DEBUG)
54 	uma_zone_t	kc_zone;
55 #else
56 	size_t		kc_size;
57 #endif
58 	int		(*kc_constructor)(void *, void *, int);
59 	void		(*kc_destructor)(void *, void *);
60 	void		*kc_private;
61 } kmem_cache_t;
62 
63 #define vmem_t	void
64 
65 void *zfs_kmem_alloc(size_t size, int kmflags);
66 void zfs_kmem_free(void *buf, size_t size);
67 uint64_t kmem_size(void);
68 uint64_t kmem_used(void);
69 kmem_cache_t *kmem_cache_create(char *name, size_t bufsize, size_t align,
70     int (*constructor)(void *, void *, int), void (*destructor)(void *, void *),
71     void (*reclaim)(void *) __unused, void *private, vmem_t *vmp, int cflags);
72 void kmem_cache_destroy(kmem_cache_t *cache);
73 void *kmem_cache_alloc(kmem_cache_t *cache, int flags);
74 void kmem_cache_free(kmem_cache_t *cache, void *buf);
75 void kmem_cache_reap_now(kmem_cache_t *cache);
76 void kmem_reap(void);
77 int kmem_debugging(void);
78 void *calloc(size_t n, size_t s);
79 
80 #define	kmem_alloc(size, kmflags)	zfs_kmem_alloc((size), (kmflags))
81 #define	kmem_zalloc(size, kmflags)	zfs_kmem_alloc((size), (kmflags) | M_ZERO)
82 #define	kmem_free(buf, size)		zfs_kmem_free((buf), (size))
83 
84 #define	kmem_cache_set_move(cache, movefunc)	do { } while (0)
85 
86 #endif	/* _OPENSOLARIS_SYS_KMEM_H_ */
87