xref: /OK3568_Linux_fs/kernel/arch/powerpc/platforms/4xx/machine_check.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  */
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #include <linux/kernel.h>
6*4882a593Smuzhiyun #include <linux/printk.h>
7*4882a593Smuzhiyun #include <linux/ptrace.h>
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun #include <asm/reg.h>
10*4882a593Smuzhiyun 
machine_check_4xx(struct pt_regs * regs)11*4882a593Smuzhiyun int machine_check_4xx(struct pt_regs *regs)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun 	unsigned long reason = regs->dsisr;
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun 	if (reason & ESR_IMCP) {
16*4882a593Smuzhiyun 		printk("Instruction");
17*4882a593Smuzhiyun 		mtspr(SPRN_ESR, reason & ~ESR_IMCP);
18*4882a593Smuzhiyun 	} else
19*4882a593Smuzhiyun 		printk("Data");
20*4882a593Smuzhiyun 	printk(" machine check in kernel mode.\n");
21*4882a593Smuzhiyun 
22*4882a593Smuzhiyun 	return 0;
23*4882a593Smuzhiyun }
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