FreeBSD/Linux Kernel Cross Reference
sys/sys/vmem.h
1 /* $NetBSD: vmem.h,v 1.8 2007/12/13 02:45:10 yamt Exp $ */
2
3 /*-
4 * Copyright (c)2006 YAMAMOTO Takashi,
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #ifndef _SYS_VMEM_H_
30 #define _SYS_VMEM_H_
31
32 #include <sys/types.h>
33
34 #if !defined(_KERNEL)
35 #include <stdbool.h>
36 #endif /* !defined(_KERNEL) */
37
38 typedef struct vmem vmem_t;
39
40 typedef unsigned int vm_flag_t;
41
42 typedef uintptr_t vmem_addr_t;
43 typedef size_t vmem_size_t;
44 #define VMEM_ADDR_NULL 0
45
46 vmem_t *vmem_create(const char *, vmem_addr_t, vmem_size_t, vmem_size_t,
47 vmem_addr_t (*)(vmem_t *, vmem_size_t, vmem_size_t *, vm_flag_t),
48 void (*)(vmem_t *, vmem_addr_t, vmem_size_t), vmem_t *, vmem_size_t,
49 vm_flag_t, int);
50 void vmem_destroy(vmem_t *);
51 vmem_addr_t vmem_alloc(vmem_t *, vmem_size_t, vm_flag_t);
52 void vmem_free(vmem_t *, vmem_addr_t, vmem_size_t);
53 vmem_addr_t vmem_xalloc(vmem_t *, vmem_size_t, vmem_size_t, vmem_size_t,
54 vmem_size_t, vmem_addr_t, vmem_addr_t, vm_flag_t);
55 void vmem_xfree(vmem_t *, vmem_addr_t, vmem_size_t);
56 vmem_addr_t vmem_add(vmem_t *, vmem_addr_t, vmem_size_t, vm_flag_t);
57 vmem_size_t vmem_roundup_size(vmem_t *, vmem_size_t);
58 bool vmem_reap(vmem_t *);
59 void vmem_rehash_start(void);
60 void vmem_whatis(uintptr_t, void (*)(const char *, ...));
61
62 /* vm_flag_t */
63 #define VM_SLEEP 0x00000001
64 #define VM_NOSLEEP 0x00000002
65 #define VM_INSTANTFIT 0x00001000
66 #define VM_BESTFIT 0x00002000
67
68 #endif /* !_SYS_VMEM_H_ */
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