1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/debugfs.h>
3 #include <linux/seq_file.h>
5 #include <asm/ptdump.h>
7 static int ptdump_show(struct seq_file *m, void *v)
9 struct ptdump_info *info = m->private;
11 ptdump_walk_pgd(m, info);
15 static int ptdump_open(struct inode *inode, struct file *file)
17 return single_open(file, ptdump_show, inode->i_private);
20 static const struct file_operations ptdump_fops = {
24 .release = single_release,
27 int ptdump_debugfs_register(struct ptdump_info *info, const char *name)
31 pe = debugfs_create_file(name, 0400, NULL, info, &ptdump_fops);
32 return pe ? 0 : -ENOMEM;