xref: /openbmc/linux/arch/mips/sgi-ip32/ip32-berr.c (revision c4a54f70)
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * Copyright (C) 1994, 1995, 1996, 1999, 2000 by Ralf Baechle
7  * Copyright (C) 1999, 2000 by Silicon Graphics
8  * Copyright (C) 2002  Maciej W. Rozycki
9  */
10 #include <linux/init.h>
11 #include <linux/kernel.h>
12 #include <linux/sched.h>
13 #include <linux/sched/debug.h>
14 #include <linux/sched/signal.h>
15 #include <asm/traps.h>
16 #include <linux/uaccess.h>
17 #include <asm/addrspace.h>
18 #include <asm/ptrace.h>
19 #include <asm/tlbdebug.h>
20 
21 static int ip32_be_handler(struct pt_regs *regs, int is_fixup)
22 {
23 	int data = regs->cp0_cause & 4;
24 
25 	if (is_fixup)
26 		return MIPS_BE_FIXUP;
27 
28 	printk("Got %cbe at 0x%lx\n", data ? 'd' : 'i', regs->cp0_epc);
29 	show_regs(regs);
30 	dump_tlb_all();
31 	while(1);
32 	force_sig(SIGBUS);
33 }
34 
35 void __init ip32_be_init(void)
36 {
37 	board_be_handler = ip32_be_handler;
38 }
39