powerpc/book3e: Move doorbell_exception from traps.c to dbell.c
... where it belongs
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c
index 1493734..e3a7177 100644
--- a/arch/powerpc/kernel/dbell.c
+++ b/arch/powerpc/kernel/dbell.c
@@ -41,4 +41,24 @@
ppc_msgsnd(PPC_DBELL, PPC_DBELL_MSG_BRDCAST, 0);
}
}
-#endif
+
+void doorbell_exception(struct pt_regs *regs)
+{
+ int cpu = smp_processor_id();
+ int msg;
+
+ if (num_online_cpus() < 2)
+ return;
+
+ for (msg = 0; msg < 4; msg++)
+ if (test_and_clear_bit(msg, &dbell_smp_message[cpu]))
+ smp_message_recv(msg);
+}
+
+#else /* CONFIG_SMP */
+void doorbell_exception(struct pt_regs *regs)
+{
+ printk(KERN_WARNING "Received doorbell on non-smp system\n");
+}
+#endif /* CONFIG_SMP */
+