| /* |
| * iSeries_proc.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/ItLpQueue.h> |
| #include <asm/iSeries/HvCallXm.h> |
| #include <asm/iSeries/IoHriMainStore.h> |
| #include <asm/iSeries/IoHriProcessorVpd.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 char *event_types[9] = { |
| "Hypervisor\t\t", |
| "Machine Facilities\t", |
| "Session Manager\t", |
| "SPD I/O\t\t", |
| "Virtual Bus\t\t", |
| "PCI I/O\t\t", |
| "RIO I/O\t\t", |
| "Virtual Lan\t\t", |
| "Virtual I/O\t\t" |
| }; |
| |
| static int proc_lpevents_show(struct seq_file *m, void *v) |
| { |
| unsigned int i; |
| |
| seq_printf(m, "LpEventQueue 0\n"); |
| seq_printf(m, " events processed:\t%lu\n", |
| (unsigned long)xItLpQueue.xLpIntCount); |
| |
| for (i = 0; i < 9; ++i) |
| seq_printf(m, " %s %10lu\n", event_types[i], |
| (unsigned long)xItLpQueue.xLpIntCountByType[i]); |
| |
| seq_printf(m, "\n events processed by processor:\n"); |
| |
| for_each_online_cpu(i) |
| seq_printf(m, " CPU%02d %10u\n", i, paca[i].lpevent_count); |
| |
| return 0; |
| } |
| |
| static int proc_lpevents_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, proc_lpevents_show, NULL); |
| } |
| |
| static struct file_operations proc_lpevents_operations = { |
| .open = proc_lpevents_open, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| 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/lpevents", S_IFREG|S_IRUGO, NULL); |
| if (e) |
| e->proc_fops = &proc_lpevents_operations; |
| |
| 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); |