1 /* $OpenBSD: vmalloc.h,v 1.7 2024/03/20 02:42:17 jsg Exp $ */
2 /*
3 * Copyright (c) 2013, 2014, 2015 Mark Kettenis
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #ifndef _LINUX_VMALLOC_H
19 #define _LINUX_VMALLOC_H
20
21 #include <sys/param.h>
22 #include <sys/malloc.h>
23 #include <uvm/uvm_extern.h>
24 #include <linux/overflow.h>
25 #include <linux/types.h> /* for pgprot_t */
26
27 void *vmap(struct vm_page **, unsigned int, unsigned long, pgprot_t);
28 void *vmap_pfn(unsigned long *, unsigned int, pgprot_t);
29 void vunmap(void *, size_t);
30
31 static inline void *
vmalloc(unsigned long size)32 vmalloc(unsigned long size)
33 {
34 return malloc(size, M_DRM, M_WAITOK | M_CANFAIL);
35 }
36
37 static inline void *
vzalloc(unsigned long size)38 vzalloc(unsigned long size)
39 {
40 return malloc(size, M_DRM, M_WAITOK | M_CANFAIL | M_ZERO);
41 }
42
43 static inline void
vfree(void * objp)44 vfree(void *objp)
45 {
46 free(objp, M_DRM, 0);
47 }
48
49
50 #endif
51