162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci */ 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci#include <linux/kernel.h> 662306a36Sopenharmony_ci#include <linux/printk.h> 762306a36Sopenharmony_ci#include <linux/ptrace.h> 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#include <asm/reg.h> 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ciint machine_check_4xx(struct pt_regs *regs) 1262306a36Sopenharmony_ci{ 1362306a36Sopenharmony_ci unsigned long reason = regs->esr; 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci if (reason & ESR_IMCP) { 1662306a36Sopenharmony_ci printk("Instruction"); 1762306a36Sopenharmony_ci mtspr(SPRN_ESR, reason & ~ESR_IMCP); 1862306a36Sopenharmony_ci } else 1962306a36Sopenharmony_ci printk("Data"); 2062306a36Sopenharmony_ci printk(" machine check in kernel mode.\n"); 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci return 0; 2362306a36Sopenharmony_ci} 24