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 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 #include <sys/types.h>
29 #include <sys/mman.h>
30 #include <errno.h>
31
32 #include "pciaccess.h"
33 #include "pciaccess_private.h"
34
35 /**
36 * \file common_map.c
37 * Platform independent memory map routines.
38 *
39 * \author Ian Romanick <idr@us.ibm.com>
40 */
41
42 /**
43 * Unmap the specified region using the munmap.
44 *
45 * \param dev Device whose memory region is to be mapped.
46 * \param map Memory mapping that is to be undone.
47 *
48 * \return
49 * Zero on success or an \c errno value on failure.
50 *
51 * \sa pci_device_unmap_range
52 */
53 _pci_hidden int
pci_device_generic_unmap_range(struct pci_device * dev,struct pci_device_mapping * map)54 pci_device_generic_unmap_range(struct pci_device *dev,
55 struct pci_device_mapping *map)
56 {
57 return (munmap(map->memory, map->size) == -1) ? errno : 0;
58 }
59