1 files changed, 91 insertions, 0 deletions

diff --git a/arch/tile/kernel/proc.c b/arch/tile/kernel/proc.c
new file mode 100644
index 000000000000..92ef925d2f8d
--- /dev/null
+++ b/arch/tile/kernel/proc.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2010 Tilera Corporation. All Rights Reserved.
+ *
+ *   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, version 2.
+ *
+ *   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, GOOD TITLE or
+ *   NON INFRINGEMENT.  See the GNU General Public License for
+ *   more details.
+ */
+
+#include <linux/smp.h>
+#include <linux/seq_file.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/timex.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/sysctl.h>
+#include <linux/hardirq.h>
+#include <linux/mman.h>
+#include <linux/smp.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/sections.h>
+#include <asm/homecache.h>
+#include <arch/chip.h>
+
+
+/*
+ * Support /proc/cpuinfo
+ */
+
+#define cpu_to_ptr(n) ((void *)((long)(n)+1))
+#define ptr_to_cpu(p) ((long)(p) - 1)
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+        int n = ptr_to_cpu(v);
+
+        if (n == 0) {
+                char buf[NR_CPUS*5];
+                cpulist_scnprintf(buf, sizeof(buf), cpu_online_mask);
+                seq_printf(m, "cpu count\t: %d\n", num_online_cpus());
+                seq_printf(m, "cpu list\t: %s\n", buf);
+                seq_printf(m, "model name\t: %s\n", chip_model);
+                seq_printf(m, "flags\t\t:\n");  /* nothing for now */
+                seq_printf(m, "cpu MHz\t\t: %llu.%06llu\n",
+                           get_clock_rate() / 1000000,
+                           (get_clock_rate() % 1000000));
+                seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
+                           loops_per_jiffy/(500000/HZ),
+                           (loops_per_jiffy/(5000/HZ)) % 100);
+        }
+
+#ifdef CONFIG_SMP
+        if (!cpu_online(n))
+                return 0;
+#endif
+
+        seq_printf(m, "processor\t: %d\n", n);
+
+        /* Print only num_online_cpus() blank lines total. */
+        if (cpumask_next(n, cpu_online_mask) < nr_cpu_ids)
+                seq_printf(m, "\n");
+
+        return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+        return *pos < nr_cpu_ids ? cpu_to_ptr(*pos) : NULL;
+}
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+        ++*pos;
+        return c_start(m, pos);
+}
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+const struct seq_operations cpuinfo_op = {
+        .start  = c_start,
+        .next   = c_next,
+        .stop   = c_stop,
+        .show   = show_cpuinfo,
+};