aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/kernel/rtas.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/rtas.c')
-rw-r--r--arch/powerpc/kernel/rtas.c34
1 files changed, 6 insertions, 28 deletions
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 6ef80d4e38d..76b5d7ebdcc 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -303,6 +303,12 @@ int rtas_token(const char *service)
}
EXPORT_SYMBOL(rtas_token);
+int rtas_service_present(const char *service)
+{
+ return rtas_token(service) != RTAS_UNKNOWN_SERVICE;
+}
+EXPORT_SYMBOL(rtas_service_present);
+
#ifdef CONFIG_RTAS_ERROR_LOGGING
/*
* Return the firmware-specified size of the error log buffer
@@ -810,31 +816,6 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
return 0;
}
-/* This version can't take the spinlock, because it never returns */
-
-struct rtas_args rtas_stop_self_args = {
- /* The token is initialized for real in setup_system() */
- .token = RTAS_UNKNOWN_SERVICE,
- .nargs = 0,
- .nret = 1,
- .rets = &rtas_stop_self_args.args[0],
-};
-
-void rtas_stop_self(void)
-{
- struct rtas_args *rtas_args = &rtas_stop_self_args;
-
- local_irq_disable();
-
- BUG_ON(rtas_args->token == RTAS_UNKNOWN_SERVICE);
-
- printk("cpu %u (hwid %u) Ready to die...\n",
- smp_processor_id(), hard_smp_processor_id());
- enter_rtas(__pa(rtas_args));
-
- panic("Alas, I survived.\n");
-}
-
/*
* Call early during boot, before mem init or bootmem, to retrieve the RTAS
* informations from the device-tree and allocate the RMO buffer for userland
@@ -879,9 +860,6 @@ void __init rtas_initialize(void)
#endif
rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE, rtas_region);
-#ifdef CONFIG_HOTPLUG_CPU
- rtas_stop_self_args.token = rtas_token("stop-self");
-#endif /* CONFIG_HOTPLUG_CPU */
#ifdef CONFIG_RTAS_ERROR_LOGGING
rtas_last_error_token = rtas_token("rtas-last-error");
#endif