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-rw-r--r--arch/tile/kernel/proc.c160
1 files changed, 160 insertions, 0 deletions
diff --git a/arch/tile/kernel/proc.c b/arch/tile/kernel/proc.c
new file mode 100644
index 000000000..7983e9868
--- /dev/null
+++ b/arch/tile/kernel/proc.c
@@ -0,0 +1,160 @@
+/*
+ * 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/hugetlb.h>
+#include <linux/mman.h>
+#include <asm/unaligned.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/sections.h>
+#include <asm/homecache.h>
+#include <asm/hardwall.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) {
+ seq_printf(m, "cpu count\t: %d\n", num_online_cpus());
+ seq_printf(m, "cpu list\t: %*pbl\n",
+ cpumask_pr_args(cpu_online_mask));
+ 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,
+};
+
+/*
+ * Support /proc/tile directory
+ */
+
+static int __init proc_tile_init(void)
+{
+ struct proc_dir_entry *root = proc_mkdir("tile", NULL);
+ if (root == NULL)
+ return 0;
+
+ proc_tile_hardwall_init(root);
+
+ return 0;
+}
+
+arch_initcall(proc_tile_init);
+
+/*
+ * Support /proc/sys/tile directory
+ */
+
+static struct ctl_table unaligned_subtable[] = {
+ {
+ .procname = "enabled",
+ .data = &unaligned_fixup,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ .procname = "printk",
+ .data = &unaligned_printk,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ .procname = "count",
+ .data = &unaligned_fixup_count,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {}
+};
+
+static struct ctl_table unaligned_table[] = {
+ {
+ .procname = "unaligned_fixup",
+ .mode = 0555,
+ .child = unaligned_subtable
+ },
+ {}
+};
+
+static struct ctl_path tile_path[] = {
+ { .procname = "tile" },
+ { }
+};
+
+static int __init proc_sys_tile_init(void)
+{
+ register_sysctl_paths(tile_path, unaligned_table);
+ return 0;
+}
+
+arch_initcall(proc_sys_tile_init);