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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-07-09 15:25:18 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-07-09 15:25:18 +1000
commite3145b387a02d4bf8b8033b1354d413fc0864494 (patch)
treef1d23c25022e097ee12d5ba9227a2dcf41eb2e44 /arch/powerpc/kernel/dbell.c
parenta2e198116f97bb1cd5b37ff33a8cfdfb4010cf5b (diff)
powerpc/book3e: Move doorbell_exception from traps.c to dbell.c
... where it belongs Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/dbell.c')
-rw-r--r--arch/powerpc/kernel/dbell.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c
index 1493734cd871..e3a717704fd6 100644
--- a/arch/powerpc/kernel/dbell.c
+++ b/arch/powerpc/kernel/dbell.c
@@ -41,4 +41,24 @@ void smp_dbell_message_pass(int target, int msg)
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 */
+