151 lines
3.9 KiB
C
151 lines
3.9 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved.
|
|
*/
|
|
#include <linux/config.h>
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/seq_file.h>
|
|
#include <asm/uaccess.h>
|
|
#include <asm/sn/sn_sal.h>
|
|
|
|
static int partition_id_show(struct seq_file *s, void *p)
|
|
{
|
|
seq_printf(s, "%d\n", sn_partition_id);
|
|
return 0;
|
|
}
|
|
|
|
static int partition_id_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, partition_id_show, NULL);
|
|
}
|
|
|
|
static int system_serial_number_show(struct seq_file *s, void *p)
|
|
{
|
|
seq_printf(s, "%s\n", sn_system_serial_number());
|
|
return 0;
|
|
}
|
|
|
|
static int system_serial_number_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, system_serial_number_show, NULL);
|
|
}
|
|
|
|
static int licenseID_show(struct seq_file *s, void *p)
|
|
{
|
|
seq_printf(s, "0x%lx\n", sn_partition_serial_number_val());
|
|
return 0;
|
|
}
|
|
|
|
static int licenseID_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, licenseID_show, NULL);
|
|
}
|
|
|
|
/*
|
|
* Enable forced interrupt by default.
|
|
* When set, the sn interrupt handler writes the force interrupt register on
|
|
* the bridge chip. The hardware will then send an interrupt message if the
|
|
* interrupt line is active. This mimics a level sensitive interrupt.
|
|
*/
|
|
extern int sn_force_interrupt_flag;
|
|
|
|
static int sn_force_interrupt_show(struct seq_file *s, void *p)
|
|
{
|
|
seq_printf(s, "Force interrupt is %s\n",
|
|
sn_force_interrupt_flag ? "enabled" : "disabled");
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t sn_force_interrupt_write_proc(struct file *file,
|
|
const char __user *buffer, size_t count, loff_t *data)
|
|
{
|
|
char val;
|
|
|
|
if (copy_from_user(&val, buffer, 1))
|
|
return -EFAULT;
|
|
|
|
sn_force_interrupt_flag = (val == '0') ? 0 : 1;
|
|
return count;
|
|
}
|
|
|
|
static int sn_force_interrupt_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, sn_force_interrupt_show, NULL);
|
|
}
|
|
|
|
static int coherence_id_show(struct seq_file *s, void *p)
|
|
{
|
|
seq_printf(s, "%d\n", partition_coherence_id());
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int coherence_id_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, coherence_id_show, NULL);
|
|
}
|
|
|
|
static struct proc_dir_entry
|
|
*sn_procfs_create_entry(const char *name, struct proc_dir_entry *parent,
|
|
int (*openfunc)(struct inode *, struct file *),
|
|
int (*releasefunc)(struct inode *, struct file *),
|
|
ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *))
|
|
{
|
|
struct proc_dir_entry *e = create_proc_entry(name, 0444, parent);
|
|
|
|
if (e) {
|
|
struct file_operations *f;
|
|
|
|
f = kzalloc(sizeof(*f), GFP_KERNEL);
|
|
if (f) {
|
|
f->open = openfunc;
|
|
f->read = seq_read;
|
|
f->llseek = seq_lseek;
|
|
f->release = releasefunc;
|
|
f->write = write;
|
|
e->proc_fops = f;
|
|
}
|
|
}
|
|
|
|
return e;
|
|
}
|
|
|
|
/* /proc/sgi_sn/sn_topology uses seq_file, see sn_hwperf.c */
|
|
extern int sn_topology_open(struct inode *, struct file *);
|
|
extern int sn_topology_release(struct inode *, struct file *);
|
|
|
|
void register_sn_procfs(void)
|
|
{
|
|
static struct proc_dir_entry *sgi_proc_dir = NULL;
|
|
|
|
BUG_ON(sgi_proc_dir != NULL);
|
|
if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL)))
|
|
return;
|
|
|
|
sn_procfs_create_entry("partition_id", sgi_proc_dir,
|
|
partition_id_open, single_release, NULL);
|
|
|
|
sn_procfs_create_entry("system_serial_number", sgi_proc_dir,
|
|
system_serial_number_open, single_release, NULL);
|
|
|
|
sn_procfs_create_entry("licenseID", sgi_proc_dir,
|
|
licenseID_open, single_release, NULL);
|
|
|
|
sn_procfs_create_entry("sn_force_interrupt", sgi_proc_dir,
|
|
sn_force_interrupt_open, single_release,
|
|
sn_force_interrupt_write_proc);
|
|
|
|
sn_procfs_create_entry("coherence_id", sgi_proc_dir,
|
|
coherence_id_open, single_release, NULL);
|
|
|
|
sn_procfs_create_entry("sn_topology", sgi_proc_dir,
|
|
sn_topology_open, sn_topology_release, NULL);
|
|
}
|
|
|
|
#endif /* CONFIG_PROC_FS */
|