Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
Russ Anderson | 5b9021b | 2005-08-17 10:00:00 -0700 | [diff] [blame] | 6 | * Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | |
| 9 | #ifdef CONFIG_PROC_FS |
| 10 | #include <linux/proc_fs.h> |
| 11 | #include <linux/seq_file.h> |
Jes Sorensen | 8ed9b2c | 2006-02-13 05:29:57 -0500 | [diff] [blame] | 12 | #include <asm/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <asm/sn/sn_sal.h> |
| 14 | |
| 15 | static int partition_id_show(struct seq_file *s, void *p) |
| 16 | { |
Russ Anderson | 5b9021b | 2005-08-17 10:00:00 -0700 | [diff] [blame] | 17 | seq_printf(s, "%d\n", sn_partition_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | return 0; |
| 19 | } |
| 20 | |
| 21 | static int partition_id_open(struct inode *inode, struct file *file) |
| 22 | { |
| 23 | return single_open(file, partition_id_show, NULL); |
| 24 | } |
| 25 | |
| 26 | static int system_serial_number_show(struct seq_file *s, void *p) |
| 27 | { |
| 28 | seq_printf(s, "%s\n", sn_system_serial_number()); |
| 29 | return 0; |
| 30 | } |
| 31 | |
| 32 | static int system_serial_number_open(struct inode *inode, struct file *file) |
| 33 | { |
| 34 | return single_open(file, system_serial_number_show, NULL); |
| 35 | } |
| 36 | |
| 37 | static int licenseID_show(struct seq_file *s, void *p) |
| 38 | { |
| 39 | seq_printf(s, "0x%lx\n", sn_partition_serial_number_val()); |
| 40 | return 0; |
| 41 | } |
| 42 | |
| 43 | static int licenseID_open(struct inode *inode, struct file *file) |
| 44 | { |
| 45 | return single_open(file, licenseID_show, NULL); |
| 46 | } |
| 47 | |
| 48 | /* |
| 49 | * Enable forced interrupt by default. |
| 50 | * When set, the sn interrupt handler writes the force interrupt register on |
| 51 | * the bridge chip. The hardware will then send an interrupt message if the |
| 52 | * interrupt line is active. This mimics a level sensitive interrupt. |
| 53 | */ |
Len Brown | d0d59b9 | 2005-08-25 12:41:22 -0400 | [diff] [blame] | 54 | extern int sn_force_interrupt_flag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
| 56 | static int sn_force_interrupt_show(struct seq_file *s, void *p) |
| 57 | { |
| 58 | seq_printf(s, "Force interrupt is %s\n", |
| 59 | sn_force_interrupt_flag ? "enabled" : "disabled"); |
| 60 | return 0; |
| 61 | } |
| 62 | |
| 63 | static ssize_t sn_force_interrupt_write_proc(struct file *file, |
| 64 | const char __user *buffer, size_t count, loff_t *data) |
| 65 | { |
| 66 | char val; |
| 67 | |
| 68 | if (copy_from_user(&val, buffer, 1)) |
| 69 | return -EFAULT; |
| 70 | |
| 71 | sn_force_interrupt_flag = (val == '0') ? 0 : 1; |
| 72 | return count; |
| 73 | } |
| 74 | |
| 75 | static int sn_force_interrupt_open(struct inode *inode, struct file *file) |
| 76 | { |
| 77 | return single_open(file, sn_force_interrupt_show, NULL); |
| 78 | } |
| 79 | |
| 80 | static int coherence_id_show(struct seq_file *s, void *p) |
| 81 | { |
| 82 | seq_printf(s, "%d\n", partition_coherence_id()); |
| 83 | |
| 84 | return 0; |
| 85 | } |
| 86 | |
| 87 | static int coherence_id_open(struct inode *inode, struct file *file) |
| 88 | { |
| 89 | return single_open(file, coherence_id_show, NULL); |
| 90 | } |
| 91 | |
Jes Sorensen | 8ed9b2c | 2006-02-13 05:29:57 -0500 | [diff] [blame] | 92 | static struct proc_dir_entry |
| 93 | *sn_procfs_create_entry(const char *name, struct proc_dir_entry *parent, |
| 94 | int (*openfunc)(struct inode *, struct file *), |
Andrew Morton | ec1b946 | 2006-03-28 01:56:40 -0800 | [diff] [blame] | 95 | int (*releasefunc)(struct inode *, struct file *), |
| 96 | ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | { |
| 98 | struct proc_dir_entry *e = create_proc_entry(name, 0444, parent); |
| 99 | |
| 100 | if (e) { |
Andrew Morton | ec1b946 | 2006-03-28 01:56:40 -0800 | [diff] [blame] | 101 | struct file_operations *f; |
| 102 | |
| 103 | f = kzalloc(sizeof(*f), GFP_KERNEL); |
| 104 | if (f) { |
| 105 | f->open = openfunc; |
| 106 | f->read = seq_read; |
| 107 | f->llseek = seq_lseek; |
| 108 | f->release = releasefunc; |
| 109 | f->write = write; |
| 110 | e->proc_fops = f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | } |
| 112 | } |
| 113 | |
| 114 | return e; |
| 115 | } |
| 116 | |
| 117 | /* /proc/sgi_sn/sn_topology uses seq_file, see sn_hwperf.c */ |
| 118 | extern int sn_topology_open(struct inode *, struct file *); |
| 119 | extern int sn_topology_release(struct inode *, struct file *); |
| 120 | |
| 121 | void register_sn_procfs(void) |
| 122 | { |
| 123 | static struct proc_dir_entry *sgi_proc_dir = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | |
| 125 | BUG_ON(sgi_proc_dir != NULL); |
| 126 | if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL))) |
| 127 | return; |
| 128 | |
| 129 | sn_procfs_create_entry("partition_id", sgi_proc_dir, |
Andrew Morton | ec1b946 | 2006-03-28 01:56:40 -0800 | [diff] [blame] | 130 | partition_id_open, single_release, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
| 132 | sn_procfs_create_entry("system_serial_number", sgi_proc_dir, |
Andrew Morton | ec1b946 | 2006-03-28 01:56:40 -0800 | [diff] [blame] | 133 | system_serial_number_open, single_release, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
| 135 | sn_procfs_create_entry("licenseID", sgi_proc_dir, |
Andrew Morton | ec1b946 | 2006-03-28 01:56:40 -0800 | [diff] [blame] | 136 | licenseID_open, single_release, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | |
Andrew Morton | ec1b946 | 2006-03-28 01:56:40 -0800 | [diff] [blame] | 138 | sn_procfs_create_entry("sn_force_interrupt", sgi_proc_dir, |
| 139 | sn_force_interrupt_open, single_release, |
| 140 | sn_force_interrupt_write_proc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
| 142 | sn_procfs_create_entry("coherence_id", sgi_proc_dir, |
Andrew Morton | ec1b946 | 2006-03-28 01:56:40 -0800 | [diff] [blame] | 143 | coherence_id_open, single_release, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | |
| 145 | sn_procfs_create_entry("sn_topology", sgi_proc_dir, |
Andrew Morton | ec1b946 | 2006-03-28 01:56:40 -0800 | [diff] [blame] | 146 | sn_topology_open, sn_topology_release, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | } |
| 148 | |
| 149 | #endif /* CONFIG_PROC_FS */ |