summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kernel/smp.c
diff options
context:
space:
mode:
authorMilton Miller <miltonm@bga.com>2011-05-10 19:29:42 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-05-19 15:31:05 +1000
commit1ece355b6825b7c61d1dc39a5c6cf49dc746e193 (patch)
tree8302fa4a63addc8a621d4dcd49a487f6a77ca393 /arch/powerpc/kernel/smp.c
parent23d72bfd8f9f24aa9efafed3586a99f5669c23d7 (diff)
powerpc: Add kconfig for muxed smp ipi support
Compile the new smp ipi mux and demux code only if a platform will make use of it. The new config is selected as required. The new cause_ipi smp op is only available conditionally to point out configs where the select is required; this makes setting the op an immediate fail instead of a deferred unresolved symbol at link. This also creates a new config for power surge powermac upgrade support that can be disabled in expert mode but is default on. I also removed the depends / default y on CONFIG_XICS since it is selected by PSERIES. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
-rw-r--r--arch/powerpc/kernel/smp.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index fa8e8700064..d76f7d7929b 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -178,6 +178,7 @@ int smp_request_message_ipi(int virq, int msg)
return err;
}
+#ifdef CONFIG_PPC_SMP_MUXED_IPI
struct cpu_messages {
unsigned long messages; /* current messages bits */
unsigned long data; /* data for cause ipi */
@@ -230,6 +231,7 @@ irqreturn_t smp_ipi_demux(void)
}
return IRQ_HANDLED;
}
+#endif /* CONFIG_PPC_SMP_MUXED_IPI */
void smp_send_reschedule(int cpu)
{