xref: /freebsd-11-stable/sys/compat/linuxkpi/common/include/linux/io-mapping.h

/*-
 * Copyright (c) 2010 Isilon Systems, Inc.
 * Copyright (c) 2010 iX Systems, Inc.
 * Copyright (c) 2010 Panasas, Inc.
 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD: head/sys/ofed/include/linux/io-mapping.h 289644 2015-10-20 19:08:26Z hselasky $
 */
#ifndef	_LINUX_IO_MAPPING_H_
#define	_LINUX_IO_MAPPING_H_

#include <linux/types.h>
#include <linux/io.h>

struct io_mapping;

static inline struct io_mapping *
io_mapping_create_wc(resource_size_t base, unsigned long size)
{

	return ioremap_wc(base, size);
}

static inline void
io_mapping_free(struct io_mapping *mapping)
{

	iounmap(mapping);
}

static inline void *
io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset)
{

	return (((char *)mapping) + offset);
}

static inline void
io_mapping_unmap_atomic(void *vaddr)
{

}

static inline void *
io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
{

	return (((char *) mapping) + offset);
}

static inline void
io_mapping_unmap(void *vaddr)
{

}

#endif	/* _LINUX_IO_MAPPING_H_ */