diff options
Diffstat (limited to 'arch/powerpc/kernel/setup-common.c')
| -rw-r--r-- | arch/powerpc/kernel/setup-common.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 2075322cd225..9d213542a48b 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -704,6 +704,30 @@ int check_legacy_ioport(unsigned long base_port) } EXPORT_SYMBOL(check_legacy_ioport); +static int ppc_panic_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + /* + * If firmware-assisted dump has been registered then trigger + * firmware-assisted dump and let firmware handle everything else. + */ + crash_fadump(NULL, ptr); + ppc_md.panic(ptr); /* May not return */ + return NOTIFY_DONE; +} + +static struct notifier_block ppc_panic_block = { + .notifier_call = ppc_panic_event, + .priority = INT_MIN /* may not return; must be done last */ +}; + +void __init setup_panic(void) +{ + if (!ppc_md.panic) + return; + atomic_notifier_chain_register(&panic_notifier_list, &ppc_panic_block); +} + #ifdef CONFIG_CHECK_CACHE_COHERENCY /* * For platforms that have configurable cache-coherency. This function @@ -848,6 +872,9 @@ void __init setup_arch(char **cmdline_p) /* Probe the machine type, establish ppc_md. */ probe_machine(); + /* Setup panic notifier if requested by the platform. */ + setup_panic(); + /* * Configure ppc_md.power_save (ppc32 only, 64-bit machines do * it from their respective probe() function. |