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// SPDX-License-Identifier: GPL-2.0-or-later
/*
*/
#include <linux/kernel.h>
#include <linux/printk.h>
#include <linux/ptrace.h>
#include <asm/reg.h>
int machine_check_8xx(struct pt_regs *regs)
{
unsigned long reason = regs->msr;
pr_err("Machine check in kernel mode.\n");
pr_err("Caused by (from SRR1=%lx): ", reason);
if (reason & 0x40000000)
pr_cont("Fetch error at address %lx\n", regs->nip);
else
pr_cont("Data access error at address %lx\n", regs->dar);
#ifdef CONFIG_PCI
/* the qspan pci read routines can cause machine checks -- Cort
*
* yuck !!! that totally needs to go away ! There are better ways
* to deal with that than having a wart in the mcheck handler.
* -- BenH
*/
bad_page_fault(regs, SIGBUS);
return 1;
#else
return 0;
#endif
}
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