612f02d6d6
No more StudlyCaps. Remove from a couple of places it is no longer needed. Use C style comments. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
116 lines
3.6 KiB
C
116 lines
3.6 KiB
C
/*
|
|
* Copyright (C) 2001 Kyle A. Lucke IBM Corporation
|
|
* Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/param.h> /* for HZ */
|
|
#include <asm/paca.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/time.h>
|
|
#include <asm/lppaca.h>
|
|
#include <asm/iseries/hv_call_xm.h>
|
|
|
|
#include "processor_vpd.h"
|
|
#include "main_store.h"
|
|
|
|
static int __init iseries_proc_create(void)
|
|
{
|
|
struct proc_dir_entry *e = proc_mkdir("iSeries", 0);
|
|
if (!e)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
core_initcall(iseries_proc_create);
|
|
|
|
static unsigned long startTitan = 0;
|
|
static unsigned long startTb = 0;
|
|
|
|
static int proc_titantod_show(struct seq_file *m, void *v)
|
|
{
|
|
unsigned long tb0, titan_tod;
|
|
|
|
tb0 = get_tb();
|
|
titan_tod = HvCallXm_loadTod();
|
|
|
|
seq_printf(m, "Titan\n" );
|
|
seq_printf(m, " time base = %016lx\n", tb0);
|
|
seq_printf(m, " titan tod = %016lx\n", titan_tod);
|
|
seq_printf(m, " xProcFreq = %016x\n",
|
|
xIoHriProcessorVpd[0].xProcFreq);
|
|
seq_printf(m, " xTimeBaseFreq = %016x\n",
|
|
xIoHriProcessorVpd[0].xTimeBaseFreq);
|
|
seq_printf(m, " tb_ticks_per_jiffy = %lu\n", tb_ticks_per_jiffy);
|
|
seq_printf(m, " tb_ticks_per_usec = %lu\n", tb_ticks_per_usec);
|
|
|
|
if (!startTitan) {
|
|
startTitan = titan_tod;
|
|
startTb = tb0;
|
|
} else {
|
|
unsigned long titan_usec = (titan_tod - startTitan) >> 12;
|
|
unsigned long tb_ticks = (tb0 - startTb);
|
|
unsigned long titan_jiffies = titan_usec / (1000000/HZ);
|
|
unsigned long titan_jiff_usec = titan_jiffies * (1000000/HZ);
|
|
unsigned long titan_jiff_rem_usec =
|
|
titan_usec - titan_jiff_usec;
|
|
unsigned long tb_jiffies = tb_ticks / tb_ticks_per_jiffy;
|
|
unsigned long tb_jiff_ticks = tb_jiffies * tb_ticks_per_jiffy;
|
|
unsigned long tb_jiff_rem_ticks = tb_ticks - tb_jiff_ticks;
|
|
unsigned long tb_jiff_rem_usec =
|
|
tb_jiff_rem_ticks / tb_ticks_per_usec;
|
|
unsigned long new_tb_ticks_per_jiffy =
|
|
(tb_ticks * (1000000/HZ))/titan_usec;
|
|
|
|
seq_printf(m, " titan elapsed = %lu uSec\n", titan_usec);
|
|
seq_printf(m, " tb elapsed = %lu ticks\n", tb_ticks);
|
|
seq_printf(m, " titan jiffies = %lu.%04lu \n", titan_jiffies,
|
|
titan_jiff_rem_usec);
|
|
seq_printf(m, " tb jiffies = %lu.%04lu\n", tb_jiffies,
|
|
tb_jiff_rem_usec);
|
|
seq_printf(m, " new tb_ticks_per_jiffy = %lu\n",
|
|
new_tb_ticks_per_jiffy);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int proc_titantod_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, proc_titantod_show, NULL);
|
|
}
|
|
|
|
static struct file_operations proc_titantod_operations = {
|
|
.open = proc_titantod_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int __init iseries_proc_init(void)
|
|
{
|
|
struct proc_dir_entry *e;
|
|
|
|
e = create_proc_entry("iSeries/titanTod", S_IFREG|S_IRUGO, NULL);
|
|
if (e)
|
|
e->proc_fops = &proc_titantod_operations;
|
|
|
|
return 0;
|
|
}
|
|
__initcall(iseries_proc_init);
|