kmem.h revision 266667 
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: stable/10/sys/cddl/compat/opensolaris/sys/kmem.h 266667 2014-05-25 18:19:57Z markj $
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#include <sys/vmem.h>
36
37#include <vm/uma.h>
38#include <vm/vm.h>
39#include <vm/vm_extern.h>
40
41MALLOC_DECLARE(M_SOLARIS);
42
43#define	POINTER_IS_VALID(p)	(!((uintptr_t)(p) & 0x3))
44#define	POINTER_INVALIDATE(pp)	(*(pp) = (void *)((uintptr_t)(*(pp)) | 0x1))
45
46#define	KM_SLEEP		M_WAITOK
47#define	KM_PUSHPAGE		M_WAITOK
48#define	KM_NOSLEEP		M_NOWAIT
49#define	KM_NODEBUG		M_NODUMP
50#define	KM_NORMALPRI		0
51#define	KMC_NODEBUG		UMA_ZONE_NODUMP
52#define	KMC_NOTOUCH		0
53
54typedef struct kmem_cache {
55	char		kc_name[32];
56#if defined(_KERNEL) && !defined(KMEM_DEBUG)
57	uma_zone_t	kc_zone;
58#else
59	size_t		kc_size;
60#endif
61	int		(*kc_constructor)(void *, void *, int);
62	void		(*kc_destructor)(void *, void *);
63	void		*kc_private;
64} kmem_cache_t;
65
66void *zfs_kmem_alloc(size_t size, int kmflags);
67void zfs_kmem_free(void *buf, size_t size);
68uint64_t kmem_size(void);
69uint64_t kmem_used(void);
70kmem_cache_t *kmem_cache_create(char *name, size_t bufsize, size_t align,
71    int (*constructor)(void *, void *, int), void (*destructor)(void *, void *),
72    void (*reclaim)(void *) __unused, void *private, vmem_t *vmp, int cflags);
73void kmem_cache_destroy(kmem_cache_t *cache);
74void *kmem_cache_alloc(kmem_cache_t *cache, int flags);
75void kmem_cache_free(kmem_cache_t *cache, void *buf);
76void kmem_cache_reap_now(kmem_cache_t *cache);
77void kmem_reap(void);
78int kmem_debugging(void);
79void *calloc(size_t n, size_t s);
80
81#define	kmem_alloc(size, kmflags)	zfs_kmem_alloc((size), (kmflags))
82#define	kmem_zalloc(size, kmflags)	zfs_kmem_alloc((size), (kmflags) | M_ZERO)
83#define	kmem_free(buf, size)		zfs_kmem_free((buf), (size))
84
85#define	kmem_cache_set_move(cache, movefunc)	do { } while (0)
86
87#endif	/* _OPENSOLARIS_SYS_KMEM_H_ */
88