1/*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef _LINUX_IO_MAPPING_H_ 30#define _LINUX_IO_MAPPING_H_ 31 32#include <linux/types.h> 33#include <linux/io.h> 34 35struct io_mapping; 36 37static inline struct io_mapping * 38io_mapping_create_wc(resource_size_t base, unsigned long size) 39{ 40 41 return ioremap_wc(base, size); 42} 43 44static inline void 45io_mapping_free(struct io_mapping *mapping) 46{ 47 48 iounmap(mapping); 49} 50 51static inline void * 52io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset) 53{ 54 55 return (((char *)mapping) + offset); 56} 57 58static inline void 59io_mapping_unmap_atomic(void *vaddr) 60{ 61 62} 63 64static inline void * 65io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset) 66{ 67 68 return (((char *) mapping) + offset); 69} 70 71static inline void 72io_mapping_unmap(void *vaddr) 73{ 74 75} 76 77#endif /* _LINUX_IO_MAPPING_H_ */ 78