1 files changed, 64 insertions, 0 deletions

diff --git a/drivers/sh/intc/virq-debugfs.c b/drivers/sh/intc/virq-debugfs.c
new file mode 100644
index 000000000000..9e62ba9311f0
--- /dev/null
+++ b/drivers/sh/intc/virq-debugfs.c
@@ -0,0 +1,64 @@
+/*
+ * Support for virtual IRQ subgroups debugfs mapping.
+ *
+ * Copyright (C) 2010  Paul Mundt
+ *
+ * Modelled after arch/powerpc/kernel/irq.c.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/seq_file.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/debugfs.h>
+#include "internals.h"
+
+static int intc_irq_xlate_debug(struct seq_file *m, void *priv)
+{
+        int i;
+
+        seq_printf(m, "%-5s  %-7s  %-15s\n", "irq", "enum", "chip name");
+
+        for (i = 1; i < nr_irqs; i++) {
+                struct intc_map_entry *entry = intc_irq_xlate_get(i);
+                struct intc_desc_int *desc = entry->desc;
+
+                if (!desc)
+                        continue;
+
+                seq_printf(m, "%5d  ", i);
+                seq_printf(m, "0x%05x  ", entry->enum_id);
+                seq_printf(m, "%-15s\n", desc->chip.name);
+        }
+
+        return 0;
+}
+
+static int intc_irq_xlate_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, intc_irq_xlate_debug, inode->i_private);
+}
+
+static const struct file_operations intc_irq_xlate_fops = {
+        .open = intc_irq_xlate_open,
+        .read = seq_read,
+        .llseek = seq_lseek,
+        .release = single_release,
+};
+
+static int __init intc_irq_xlate_init(void)
+{
+        /*
+         * XXX.. use arch_debugfs_dir here when all of the intc users are
+         * converted.
+         */
+        if (debugfs_create_file("intc_irq_xlate", S_IRUGO, NULL, NULL,
+                                &intc_irq_xlate_fops) == NULL)
+                return -ENOMEM;
+
+        return 0;
+}
+fs_initcall(intc_irq_xlate_init);