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

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  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 */
118 

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