1 // SPDX-License-Identifier: GPL-2.0+
3  * Copyright (C) 1995-1996  Gary Thomas (gdt@linuxppc.org)
13  * This file handles the architecture-dependent parts of hardware exceptions
31 #define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize())
64 	       regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);  in show_regs()
67 	       regs->msr, regs->msr & MSR_EE ? 1 : 0,  in show_regs()
68 	       regs->msr & MSR_PR ? 1 : 0, regs->msr & MSR_FP ? 1 : 0,  in show_regs()
69 	       regs->msr & MSR_ME ? 1 : 0, regs->msr & MSR_IR ? 1 : 0,  in show_regs()
70 	       regs->msr & MSR_DR ? 1 : 0);  in show_regs()
78 		printf("%08lX ", regs->gpr[i]);  in show_regs()
89 	print_backtrace((unsigned long *)regs->gpr[1]);  in _exception()
90 	panic("Exception in kernel pc %lx signal %d", regs->nip, signr);  in _exception()
101 	if ((fixup = search_exception_table(regs->nip)) != 0) {  in MachineCheckException()
102 		regs->nip = fixup;  in MachineCheckException()
114 	switch ( regs->msr & 0x001F0000) {  in MachineCheckException()
119 		printf("Machine check signal - probably due to mm fault\n"  in MachineCheckException()
123 		printf("Transfer error ack signal\n");  in MachineCheckException()
135 	print_backtrace((unsigned long *)regs->gpr[1]);  in MachineCheckException()
146 	print_backtrace((unsigned long *)regs->gpr[1]);  in AlignmentException()
152 	unsigned char *p = regs ? (unsigned char *)(regs->nip) : NULL;  in ProgramCheckException()
162 	p -= 32;  in ProgramCheckException()
171 	print_backtrace((unsigned long *)regs->gpr[1]);  in ProgramCheckException()
182 	print_backtrace((unsigned long *)regs->gpr[1]);  in SoftEmuException()
193 	printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",  in UnknownException()
194 	       regs->nip, regs->msr, regs->trap);  in UnknownException()