From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/powerpc/platforms/8xx/machine_check.c | 34 ++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 arch/powerpc/platforms/8xx/machine_check.c (limited to 'arch/powerpc/platforms/8xx/machine_check.c') diff --git a/arch/powerpc/platforms/8xx/machine_check.c b/arch/powerpc/platforms/8xx/machine_check.c new file mode 100644 index 000000000..656365975 --- /dev/null +++ b/arch/powerpc/platforms/8xx/machine_check.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +#include +#include +#include + +#include + +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 +} -- cgit v1.2.3