1161304Snetchild/*- 2161304Snetchild * Copyright (c) 2010 Isilon Systems, Inc. 3161304Snetchild * Copyright (c) 2010 iX Systems, Inc. 4161304Snetchild * Copyright (c) 2010 Panasas, Inc. 5161304Snetchild * All rights reserved. 6161304Snetchild * 7161304Snetchild * Redistribution and use in source and binary forms, with or without 8161304Snetchild * modification, are permitted provided that the following conditions 9161304Snetchild * are met: 10161304Snetchild * 1. Redistributions of source code must retain the above copyright 11161304Snetchild * notice unmodified, this list of conditions, and the following 12161304Snetchild * disclaimer. 13161304Snetchild * 2. Redistributions in binary form must reproduce the above copyright 14161304Snetchild * notice, this list of conditions and the following disclaimer in the 15161304Snetchild * documentation and/or other materials provided with the distribution. 16161304Snetchild * 17161304Snetchild * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18161304Snetchild * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19161304Snetchild * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20161304Snetchild * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21161304Snetchild * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22161304Snetchild * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23161304Snetchild * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24161304Snetchild * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25161304Snetchild * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26161304Snetchild * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27161304Snetchild */ 28161304Snetchild 29161304Snetchild#ifndef _LINUX_IO_MAPPING_H_ 30161304Snetchild#define _LINUX_IO_MAPPING_H_ 31161304Snetchild 32161304Snetchild#include <linux/types.h> 33161304Snetchild#include <linux/io.h> 34161304Snetchild 35161304Snetchildstruct io_mapping; 36161304Snetchild 37166420Skibstatic inline struct io_mapping * 38161304Snetchildio_mapping_create_wc(resource_size_t base, unsigned long size) 39161304Snetchild{ 40161304Snetchild 41161304Snetchild return ioremap_wc(base, size); 42161304Snetchild} 43161304Snetchild 44161304Snetchildstatic inline void 45161304Snetchildio_mapping_free(struct io_mapping *mapping) 46161304Snetchild{ 47161304Snetchild 48161304Snetchild iounmap(mapping); 49161304Snetchild} 50161304Snetchild 51161304Snetchildstatic inline void * 52161304Snetchildio_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset) 53161304Snetchild{ 54161304Snetchild 55178976Srdivacky return (((char *)mapping) + offset); 56178976Srdivacky} 57178976Srdivacky 58168275Sjkimstatic inline void 59168275Sjkimio_mapping_unmap_atomic(void *vaddr) 60161304Snetchild{ 61161304Snetchild 62161304Snetchild} 63161304Snetchild 64161304Snetchildstatic inline void * 65161304Snetchildio_mapping_map_wc(struct io_mapping *mapping, unsigned long offset) 66161304Snetchild{ 67165867Snetchild 68165688Snetchild return (((char *) mapping) + offset); 69161304Snetchild} 70165688Snetchild 71161304Snetchildstatic inline void 72165867Snetchildio_mapping_unmap(void *vaddr) 73165688Snetchild{ 74161304Snetchild 75161304Snetchild} 76161304Snetchild 77161304Snetchild#endif /* _LINUX_IO_MAPPING_H_ */ 78161304Snetchild