1 /* 2 * (C) Copyright IBM Corporation 2007 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * on the rights to use, copy, modify, merge, publish, distribute, sub 9 * license, and/or sell copies of the Software, and to permit persons to whom 10 * the Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 19 * IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 */ 24 25 #include <sys/mman.h> 26 #include <errno.h> 27 28 #include "pciaccess.h" 29 #include "pciaccess_private.h" 30 31 /** 32 * \file common_map.c 33 * Platform independent memory map routines. 34 * 35 * \author Ian Romanick <[email protected]> 36 */ 37 38 /** 39 * Unmap the specified region using the munmap. 40 * 41 * \param dev Device whose memory region is to be mapped. 42 * \param map Memory mapping that is to be undone. 43 * 44 * \return 45 * Zero on success or an \c errno value on failure. 46 * 47 * \sa pci_device_unmap_range 48 */ 49 int 50 pci_device_generic_unmap_range(struct pci_device *dev, 51 struct pci_device_mapping *map) 52 { 53 return (munmap(map->memory, map->size) == -1) ? errno : 0; 54 } 55