From b9e393c2babb8b6956de52fc580b7c23f3629232 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 7 Mar 2008 17:19:58 +0900
Subject: [PATCH] sh: Create an sh debugfs root.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/setup.c     | 14 ++++++++++++++
 arch/sh/mm/cache-debugfs.c |  4 ++--
 arch/sh/mm/pmb.c           |  2 +-
 include/asm-sh/system.h    |  2 ++
 4 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index ff4f54a47c0..23bc707c2b0 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -23,6 +23,8 @@
 #include <linux/kexec.h>
 #include <linux/module.h>
 #include <linux/smp.h>
+#include <linux/err.h>
+#include <linux/debugfs.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/page.h>
@@ -443,3 +445,15 @@ const struct seq_operations cpuinfo_op = {
 	.show	= show_cpuinfo,
 };
 #endif /* CONFIG_PROC_FS */
+
+struct dentry *sh_debugfs_root;
+
+static int __init sh_debugfs_init(void)
+{
+	sh_debugfs_root = debugfs_create_dir("sh", NULL);
+	if (IS_ERR(sh_debugfs_root))
+		return PTR_ERR(sh_debugfs_root);
+
+	return 0;
+}
+arch_initcall(sh_debugfs_init);
diff --git a/arch/sh/mm/cache-debugfs.c b/arch/sh/mm/cache-debugfs.c
index db6d950b6f5..c5b56d52b7d 100644
--- a/arch/sh/mm/cache-debugfs.c
+++ b/arch/sh/mm/cache-debugfs.c
@@ -127,13 +127,13 @@ static int __init cache_debugfs_init(void)
 {
 	struct dentry *dcache_dentry, *icache_dentry;
 
-	dcache_dentry = debugfs_create_file("dcache", S_IRUSR, NULL,
+	dcache_dentry = debugfs_create_file("dcache", S_IRUSR, sh_debugfs_root,
 					    (unsigned int *)CACHE_TYPE_DCACHE,
 					    &cache_debugfs_fops);
 	if (IS_ERR(dcache_dentry))
 		return PTR_ERR(dcache_dentry);
 
-	icache_dentry = debugfs_create_file("icache", S_IRUSR, NULL,
+	icache_dentry = debugfs_create_file("icache", S_IRUSR, sh_debugfs_root,
 					    (unsigned int *)CACHE_TYPE_ICACHE,
 					    &cache_debugfs_fops);
 	if (IS_ERR(icache_dentry)) {
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index ab81c602295..0b0ec6e0475 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -393,7 +393,7 @@ static int __init pmb_debugfs_init(void)
 	struct dentry *dentry;
 
 	dentry = debugfs_create_file("pmb", S_IFREG | S_IRUGO,
-				     NULL, NULL, &pmb_debugfs_fops);
+				     sh_debugfs_root, NULL, &pmb_debugfs_fops);
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index 5145aa2a0ce..e65b6b822cb 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -146,6 +146,8 @@ extern unsigned int instruction_size(unsigned int insn);
 
 extern unsigned long cached_to_uncached;
 
+extern struct dentry *sh_debugfs_root;
+
 /* XXX
  * disable hlt during certain critical i/o operations
  */
-- 
2.41.1