57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020 Mao Minkai
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* Author: Mao Minkai
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*
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* This code is taken from arch/mips/kernel/segment.c
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* Copyright (C) 2013 Imagination Technologies Ltd.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <asm/unaligned.h>
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#include <asm/debug.h>
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static int show_unaligned(struct seq_file *sf, void *v)
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{
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extern struct unaligned_stat {
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unsigned long count, va, pc;
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} unaligned[2];
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seq_printf(sf, "kernel unaligned acc\t: %ld (pc=%lx, va=%lx)\n", unaligned[0].count, unaligned[0].pc, unaligned[0].va);
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seq_printf(sf, "user unaligned acc\t: %ld (pc=%lx, va=%lx)\n", unaligned[1].count, unaligned[1].pc, unaligned[1].va);
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return 0;
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}
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static int unaligned_open(struct inode *inode, struct file *file)
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{
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return single_open(file, show_unaligned, NULL);
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}
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static const struct file_operations unaligned_fops = {
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.open = unaligned_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int __init unaligned_info(void)
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{
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struct dentry *unaligned;
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if (!sw64_debugfs_dir)
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return -ENODEV;
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unaligned = debugfs_create_file("unaligned", S_IRUGO,
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sw64_debugfs_dir, NULL,
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&unaligned_fops);
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if (!unaligned)
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return -ENOMEM;
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return 0;
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}
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device_initcall(unaligned_info);
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