diff options
Diffstat (limited to 'arch/mips/kernel/traps.c')
| -rw-r--r-- | arch/mips/kernel/traps.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 363c4764b818..48240fd8c297 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -91,6 +91,7 @@ int (*board_be_handler)(struct pt_regs *regs, int is_fixup); void (*board_nmi_handler_setup)(void); void (*board_ejtag_handler_setup)(void); void (*board_bind_eic_interrupt)(int irq, int regset); +void (*board_ebase_setup)(void); static void show_raw_backtrace(unsigned long reg29) @@ -1339,9 +1340,18 @@ void ejtag_exception_handler(struct pt_regs *regs) /* * NMI exception handler. + * No lock; only written during early bootup by CPU 0. */ +static RAW_NOTIFIER_HEAD(nmi_chain); + +int register_nmi_notifier(struct notifier_block *nb) +{ + return raw_notifier_chain_register(&nmi_chain, nb); +} + NORET_TYPE void ATTRIB_NORET nmi_exception_handler(struct pt_regs *regs) { + raw_notifier_call_chain(&nmi_chain, 0, regs); bust_spinlocks(1); printk("NMI taken!!!!\n"); die("NMI", regs); @@ -1682,6 +1692,8 @@ void __init trap_init(void) ebase += (read_c0_ebase() & 0x3ffff000); } + if (board_ebase_setup) + board_ebase_setup(); per_cpu_trap_init(); /* |