Automatic merge of /spare/repo/netdev-2.6 branch r8169
[linux-2.6] / arch / ppc64 / kernel / iSeries_proc.c
1 /*
2  * iSeries_proc.c
3  * Copyright (C) 2001  Kyle A. Lucke IBM Corporation
4  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  */
20 #include <linux/init.h>
21 #include <linux/proc_fs.h>
22 #include <linux/seq_file.h>
23 #include <linux/param.h>                /* for HZ */
24 #include <asm/paca.h>
25 #include <asm/processor.h>
26 #include <asm/time.h>
27 #include <asm/lppaca.h>
28 #include <asm/iSeries/ItLpQueue.h>
29 #include <asm/iSeries/HvCallXm.h>
30 #include <asm/iSeries/IoHriMainStore.h>
31 #include <asm/iSeries/LparData.h>
32 #include <asm/iSeries/iSeries_proc.h>
33
34 static int __init iseries_proc_create(void)
35 {
36         struct proc_dir_entry *e = proc_mkdir("iSeries", 0);
37         if (!e)
38                 return 1;
39
40         return 0;
41 }
42 core_initcall(iseries_proc_create);
43
44 static char *event_types[9] = {
45         "Hypervisor\t\t",
46         "Machine Facilities\t",
47         "Session Manager\t",
48         "SPD I/O\t\t",
49         "Virtual Bus\t\t",
50         "PCI I/O\t\t",
51         "RIO I/O\t\t",
52         "Virtual Lan\t\t",
53         "Virtual I/O\t\t"
54 };
55
56 static int proc_lpevents_show(struct seq_file *m, void *v)
57 {
58         unsigned int i;
59
60         seq_printf(m, "LpEventQueue 0\n");
61         seq_printf(m, "  events processed:\t%lu\n",
62                    (unsigned long)xItLpQueue.xLpIntCount);
63
64         for (i = 0; i < 9; ++i)
65                 seq_printf(m, "    %s %10lu\n", event_types[i],
66                            (unsigned long)xItLpQueue.xLpIntCountByType[i]);
67
68         seq_printf(m, "\n  events processed by processor:\n");
69
70         for_each_online_cpu(i)
71                 seq_printf(m, "    CPU%02d  %10u\n", i, paca[i].lpevent_count);
72
73         return 0;
74 }
75
76 static int proc_lpevents_open(struct inode *inode, struct file *file)
77 {
78         return single_open(file, proc_lpevents_show, NULL);
79 }
80
81 static struct file_operations proc_lpevents_operations = {
82         .open           = proc_lpevents_open,
83         .read           = seq_read,
84         .llseek         = seq_lseek,
85         .release        = single_release,
86 };
87
88 static unsigned long startTitan = 0;
89 static unsigned long startTb = 0;
90
91 static int proc_titantod_show(struct seq_file *m, void *v)
92 {
93         unsigned long tb0, titan_tod;
94
95         tb0 = get_tb();
96         titan_tod = HvCallXm_loadTod();
97
98         seq_printf(m, "Titan\n" );
99         seq_printf(m, "  time base =          %016lx\n", tb0);
100         seq_printf(m, "  titan tod =          %016lx\n", titan_tod);
101         seq_printf(m, "  xProcFreq =          %016x\n",
102                    xIoHriProcessorVpd[0].xProcFreq);
103         seq_printf(m, "  xTimeBaseFreq =      %016x\n",
104                    xIoHriProcessorVpd[0].xTimeBaseFreq);
105         seq_printf(m, "  tb_ticks_per_jiffy = %lu\n", tb_ticks_per_jiffy);
106         seq_printf(m, "  tb_ticks_per_usec  = %lu\n", tb_ticks_per_usec);
107
108         if (!startTitan) {
109                 startTitan = titan_tod;
110                 startTb = tb0;
111         } else {
112                 unsigned long titan_usec = (titan_tod - startTitan) >> 12;
113                 unsigned long tb_ticks = (tb0 - startTb);
114                 unsigned long titan_jiffies = titan_usec / (1000000/HZ);
115                 unsigned long titan_jiff_usec = titan_jiffies * (1000000/HZ);
116                 unsigned long titan_jiff_rem_usec = titan_usec - titan_jiff_usec;
117                 unsigned long tb_jiffies = tb_ticks / tb_ticks_per_jiffy;
118                 unsigned long tb_jiff_ticks = tb_jiffies * tb_ticks_per_jiffy;
119                 unsigned long tb_jiff_rem_ticks = tb_ticks - tb_jiff_ticks;
120                 unsigned long tb_jiff_rem_usec = tb_jiff_rem_ticks / tb_ticks_per_usec;
121                 unsigned long new_tb_ticks_per_jiffy = (tb_ticks * (1000000/HZ))/titan_usec;
122
123                 seq_printf(m, "  titan elapsed = %lu uSec\n", titan_usec);
124                 seq_printf(m, "  tb elapsed    = %lu ticks\n", tb_ticks);
125                 seq_printf(m, "  titan jiffies = %lu.%04lu \n", titan_jiffies,
126                            titan_jiff_rem_usec);
127                 seq_printf(m, "  tb jiffies    = %lu.%04lu\n", tb_jiffies,
128                            tb_jiff_rem_usec);
129                 seq_printf(m, "  new tb_ticks_per_jiffy = %lu\n",
130                            new_tb_ticks_per_jiffy);
131         }
132
133         return 0;
134 }
135
136 static int proc_titantod_open(struct inode *inode, struct file *file)
137 {
138         return single_open(file, proc_titantod_show, NULL);
139 }
140
141 static struct file_operations proc_titantod_operations = {
142         .open           = proc_titantod_open,
143         .read           = seq_read,
144         .llseek         = seq_lseek,
145         .release        = single_release,
146 };
147
148 static int __init iseries_proc_init(void)
149 {
150         struct proc_dir_entry *e;
151
152         e = create_proc_entry("iSeries/lpevents", S_IFREG|S_IRUGO, NULL);
153         if (e)
154                 e->proc_fops = &proc_lpevents_operations;
155
156         e = create_proc_entry("iSeries/titanTod", S_IFREG|S_IRUGO, NULL);
157         if (e)
158                 e->proc_fops = &proc_titantod_operations;
159
160         return 0;
161 }
162 __initcall(iseries_proc_init);