1 /*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 #ifndef _LINUX_IO_MAPPING_H_ 32 #define _LINUX_IO_MAPPING_H_ 33 34 #include <linux/types.h> 35 #include <linux/io.h> 36 37 struct io_mapping; 38 39 static inline struct io_mapping * 40 io_mapping_create_wc(resource_size_t base, unsigned long size) 41 { 42 43 return ioremap_wc(base, size); 44 } 45 46 static inline void 47 io_mapping_free(struct io_mapping *mapping) 48 { 49 50 iounmap(mapping); 51 } 52 53 static inline void * 54 io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset) 55 { 56 57 return (((char *)mapping) + offset); 58 } 59 60 static inline void 61 io_mapping_unmap_atomic(void *vaddr) 62 { 63 64 } 65 66 static inline void * 67 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset) 68 { 69 70 return (((char *) mapping) + offset); 71 } 72 73 static inline void 74 io_mapping_unmap(void *vaddr) 75 { 76 77 } 78 79 #endif /* _LINUX_IO_MAPPING_H_ */ 80