Home | History | Annotate | Line # | Download | only in src 
      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 (at) 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
     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