| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/um/kernel/mem_user.c |
| 3 | * |
| 4 | * BRIEF MODULE DESCRIPTION |
| 5 | * user side memory routines for supporting IO memory inside user mode linux |
| 6 | * |
| 7 | * Copyright (C) 2001 RidgeRun, Inc. |
| 8 | * Author: RidgeRun, Inc. |
| 9 | * Greg Lonnon glonnon@ridgerun.com or info@ridgerun.com |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License as published by the |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your |
| 14 | * option) any later version. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 19 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 21 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 22 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 23 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 25 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | * |
| 27 | * You should have received a copy of the GNU General Public License along |
| 28 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 29 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 30 | */ |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | #include <stdlib.h> |
| 34 | #include <stddef.h> |
| 35 | #include <stdarg.h> |
| 36 | #include <unistd.h> |
| 37 | #include <errno.h> |
| 38 | #include <string.h> |
| 39 | #include <fcntl.h> |
| 40 | #include <sys/types.h> |
| 41 | #include <sys/mman.h> |
| 42 | #include "kern_util.h" |
| 43 | #include "user.h" |
| 44 | #include "user_util.h" |
| 45 | #include "mem_user.h" |
| 46 | #include "init.h" |
| 47 | #include "os.h" |
| 48 | #include "tempfile.h" |
| 49 | #include "kern_constants.h" |
| 50 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | struct iomem_region *iomem_regions = NULL; |
| 52 | int iomem_size = 0; |
| 53 | |
| Jeff Dike | 0f80bc8 | 2005-09-16 19:27:50 -0700 | [diff] [blame^] | 54 | extern int parse_iomem(char *str, int *add) __init; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
| 56 | __uml_setup("iomem=", parse_iomem, |
| 57 | "iomem=<name>,<file>\n" |
| 58 | " Configure <file> as an IO memory region named <name>.\n\n" |
| 59 | ); |
| 60 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | /* |
| 62 | * Overrides for Emacs so that we follow Linus's tabbing style. |
| 63 | * Emacs will notice this stuff at the end of the file and automatically |
| 64 | * adjust the settings for this buffer only. This must remain at the end |
| 65 | * of the file. |
| 66 | * --------------------------------------------------------------------------- |
| 67 | * Local variables: |
| 68 | * c-file-style: "linux" |
| 69 | * End: |
| 70 | */ |