powerpc/powernv: Enable POWER8 doorbell IPIs

[cascardo/linux.git] / arch / powerpc / platforms / powernv / smp.c

diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index 0062a43..5fcfcf4 100644 (file)
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -32,6 +32,7 @@
 #include <asm/opal.h>
 #include <asm/runlatch.h>
 #include <asm/code-patching.h>
+#include <asm/dbell.h>
 
 #include "powernv.h"
 
@@ -46,6 +47,11 @@ static void pnv_smp_setup_cpu(int cpu)
 {
        if (cpu != boot_cpuid)
                xics_setup_cpu();
+
+#ifdef CONFIG_PPC_DOORBELL
+       if (cpu_has_feature(CPU_FTR_DBELL))
+               doorbell_setup_this_cpu();
+#endif
 }
 
 int pnv_smp_kick_cpu(int nr)