arch/ia64/sn/kernel/sn2/sn_proc_fs.c

   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  *
   6  * Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved.
   7  */
   8
   9 #ifdef CONFIG_PROC_FS
  10 #include <linux/proc_fs.h>
  11 #include <linux/seq_file.h>
  12 #include <asm/uaccess.h>
  13 #include <asm/sn/sn_sal.h>
  14
  15 static int partition_id_show(struct seq_file *s, void *p)
  16 {
  17         seq_printf(s, "%d\n", sn_partition_id);
  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%llx\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 static int coherence_id_show(struct seq_file *s, void *p)
  49 {
  50         seq_printf(s, "%d\n", partition_coherence_id());
  51
  52         return 0;
  53 }
  54
  55 static int coherence_id_open(struct inode *inode, struct file *file)
  56 {
  57         return single_open(file, coherence_id_show, NULL);
  58 }
  59
  60 /* /proc/sgi_sn/sn_topology uses seq_file, see sn_hwperf.c */
  61 extern int sn_topology_open(struct inode *, struct file *);
  62 extern int sn_topology_release(struct inode *, struct file *);
  63
  64 static const struct file_operations proc_partition_id_fops = {
  65         .open           = partition_id_open,
  66         .read           = seq_read,
  67         .llseek         = seq_lseek,
  68         .release        = single_release,
  69 };
  70
  71 static const struct file_operations proc_system_sn_fops = {
  72         .open           = system_serial_number_open,
  73         .read           = seq_read,
  74         .llseek         = seq_lseek,
  75         .release        = single_release,
  76 };
  77
  78 static const struct file_operations proc_license_id_fops = {
  79         .open           = licenseID_open,
  80         .read           = seq_read,
  81         .llseek         = seq_lseek,
  82         .release        = single_release,
  83 };
  84
  85 static const struct file_operations proc_coherence_id_fops = {
  86         .open           = coherence_id_open,
  87         .read           = seq_read,
  88         .llseek         = seq_lseek,
  89         .release        = single_release,
  90 };
  91
  92 static const struct file_operations proc_sn_topo_fops = {
  93         .open           = sn_topology_open,
  94         .read           = seq_read,
  95         .llseek         = seq_lseek,
  96         .release        = sn_topology_release,
  97 };
  98
  99 void register_sn_procfs(void)
 100 {
 101         static struct proc_dir_entry *sgi_proc_dir = NULL;
 102
 103         BUG_ON(sgi_proc_dir != NULL);
 104         if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL)))
 105                 return;
 106
 107         proc_create("partition_id", 0444, sgi_proc_dir,
 108                     &proc_partition_id_fops);
 109         proc_create("system_serial_number", 0444, sgi_proc_dir,
 110                     &proc_system_sn_fops);
 111         proc_create("licenseID", 0444, sgi_proc_dir, &proc_license_id_fops);
 112         proc_create("coherence_id", 0444, sgi_proc_dir,
 113                     &proc_coherence_id_fops);
 114         proc_create("sn_topology", 0444, sgi_proc_dir, &proc_sn_topo_fops);
 115 }
 116
 117 #endif /* CONFIG_PROC_FS */