[ARM] process: Add display of memory around registers when displaying regs.
[linux-3.10.git] / arch / arm / kernel / isa.c
1 /*
2  *  linux/arch/arm/kernel/isa.c
3  *
4  *  Copyright (C) 1999 Phil Blundell
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version
9  * 2 of the License, or (at your option) any later version.
10  *
11  *  ISA shared memory and I/O port support, and is required to support
12  *  iopl, inb, outb and friends in userspace via glibc emulation.
13  */
14 #include <linux/stddef.h>
15 #include <linux/types.h>
16 #include <linux/fs.h>
17 #include <linux/sysctl.h>
18 #include <linux/init.h>
19 #include <linux/io.h>
20
21 static unsigned int isa_membase, isa_portbase, isa_portshift;
22
23 static ctl_table ctl_isa_vars[4] = {
24         {
25                 .procname       = "membase",
26                 .data           = &isa_membase, 
27                 .maxlen         = sizeof(isa_membase),
28                 .mode           = 0444,
29                 .proc_handler   = proc_dointvec,
30         }, {
31                 .procname       = "portbase",
32                 .data           = &isa_portbase, 
33                 .maxlen         = sizeof(isa_portbase),
34                 .mode           = 0444,
35                 .proc_handler   = proc_dointvec,
36         }, {
37                 .procname       = "portshift",
38                 .data           = &isa_portshift, 
39                 .maxlen         = sizeof(isa_portshift),
40                 .mode           = 0444,
41                 .proc_handler   = proc_dointvec,
42         }, {}
43 };
44
45 static struct ctl_table_header *isa_sysctl_header;
46
47 static ctl_table ctl_isa[2] = {
48         {
49                 .procname       = "isa",
50                 .mode           = 0555,
51                 .child          = ctl_isa_vars,
52         }, {}
53 };
54
55 static ctl_table ctl_bus[2] = {
56         {
57                 .procname       = "bus",
58                 .mode           = 0555,
59                 .child          = ctl_isa,
60         }, {}
61 };
62
63 void __init
64 register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
65 {
66         isa_membase = membase;
67         isa_portbase = portbase;
68         isa_portshift = portshift;
69         isa_sysctl_header = register_sysctl_table(ctl_bus);
70 }