1219820Sjeff/*- 2219820Sjeff * Copyright (c) 2010 Isilon Systems, Inc. 3219820Sjeff * Copyright (c) 2010 iX Systems, Inc. 4219820Sjeff * Copyright (c) 2010 Panasas, Inc. 5271127Shselasky * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. 6219820Sjeff * All rights reserved. 7219820Sjeff * 8219820Sjeff * Redistribution and use in source and binary forms, with or without 9219820Sjeff * modification, are permitted provided that the following conditions 10219820Sjeff * are met: 11219820Sjeff * 1. Redistributions of source code must retain the above copyright 12219820Sjeff * notice unmodified, this list of conditions, and the following 13219820Sjeff * disclaimer. 14219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 15219820Sjeff * notice, this list of conditions and the following disclaimer in the 16219820Sjeff * documentation and/or other materials provided with the distribution. 17219820Sjeff * 18219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28219820Sjeff */ 29219820Sjeff 30219820Sjeff#ifndef _LINUX_IO_MAPPING_H_ 31219820Sjeff#define _LINUX_IO_MAPPING_H_ 32219820Sjeff 33219820Sjeff#include <linux/types.h> 34219820Sjeff#include <linux/io.h> 35219820Sjeff 36219820Sjeffstruct io_mapping; 37219820Sjeff 38219820Sjeffstatic inline struct io_mapping * 39219820Sjeffio_mapping_create_wc(resource_size_t base, unsigned long size) 40219820Sjeff{ 41219820Sjeff 42219820Sjeff return ioremap_wc(base, size); 43219820Sjeff} 44219820Sjeff 45219820Sjeffstatic inline void 46219820Sjeffio_mapping_free(struct io_mapping *mapping) 47219820Sjeff{ 48219820Sjeff 49219820Sjeff iounmap(mapping); 50219820Sjeff} 51219820Sjeff 52219820Sjeffstatic inline void * 53219820Sjeffio_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset) 54219820Sjeff{ 55219820Sjeff 56219820Sjeff return (((char *)mapping) + offset); 57219820Sjeff} 58219820Sjeff 59219820Sjeffstatic inline void 60219820Sjeffio_mapping_unmap_atomic(void *vaddr) 61219820Sjeff{ 62219820Sjeff 63219820Sjeff} 64219820Sjeff 65219820Sjeffstatic inline void * 66219820Sjeffio_mapping_map_wc(struct io_mapping *mapping, unsigned long offset) 67219820Sjeff{ 68219820Sjeff 69219820Sjeff return (((char *) mapping) + offset); 70219820Sjeff} 71219820Sjeff 72219820Sjeffstatic inline void 73219820Sjeffio_mapping_unmap(void *vaddr) 74219820Sjeff{ 75219820Sjeff 76219820Sjeff} 77219820Sjeff 78219820Sjeff#endif /* _LINUX_IO_MAPPING_H_ */ 79