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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
27void *vmap(struct vm_page **, unsigned int, unsigned long, pgprot_t);
28void *vmap_pfn(unsigned long *, unsigned int, pgprot_t);
29void vunmap(void *, size_t);
30
31static inline void *
32vmalloc(unsigned long size)
33{
34 return malloc(size, M_DRM, M_WAITOK | M_CANFAIL);
35}
36
37static inline void *
38vzalloc(unsigned long size)
39{
40 return malloc(size, M_DRM, M_WAITOK | M_CANFAIL | M_ZERO);
41}
42
43static inline void
44vfree(void *objp)
45{
46 free(objp, M_DRM, 0);
47}
48
49
50#endif