sh: Create an sh debugfs root.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

4 files changed, 19 insertions, 3 deletions

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index ff4f54a47c07..23bc707c2b03 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 db6d950b6f5e..c5b56d52b7d2 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 ab81c602295f..0b0ec6e04753 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 5145aa2a0ce9..e65b6b822cb3 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
  */