xref: /openbsd-src/sys/dev/pci/drm/include/linux/vmalloc.h (revision c036ab1656490febf4f67341ec7871139e9c7103)

/*	$OpenBSD: vmalloc.h,v 1.7 2024/03/20 02:42:17 jsg Exp $	*/
/*
 * Copyright (c) 2013, 2014, 2015 Mark Kettenis
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _LINUX_VMALLOC_H
#define _LINUX_VMALLOC_H

#include <sys/param.h>
#include <sys/malloc.h>
#include <uvm/uvm_extern.h>
#include <linux/overflow.h>
#include <linux/types.h> /* for pgprot_t */

void	*vmap(struct vm_page **, unsigned int, unsigned long, pgprot_t);
void	*vmap_pfn(unsigned long *, unsigned int, pgprot_t);
void	 vunmap(void *, size_t);

static inline void *
vmalloc(unsigned long size)
{
	return malloc(size, M_DRM, M_WAITOK | M_CANFAIL);
}

static inline void *
vzalloc(unsigned long size)
{
	return malloc(size, M_DRM, M_WAITOK | M_CANFAIL | M_ZERO);
}

static inline void
vfree(void *objp)
{
	free(objp, M_DRM, 0);
}


#endif