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-rw-r--r--arch/powerpc/platforms/iseries/proc.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/iseries/proc.c b/arch/powerpc/platforms/iseries/proc.c
new file mode 100644
index 00000000000..e68b6b5fa89
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/proc.c
@@ -0,0 +1,116 @@
+/*
+ * 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/it_lp_queue.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);