1 files changed, 3 insertions, 24 deletions

diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index b80909957792..0d354e19ef92 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -283,23 +283,6 @@ static void pnv_cause_ipi(int cpu)
         ic_cause_ipi(cpu);
 }
 
-static void pnv_p9_dd1_cause_ipi(int cpu)
-{
-        int this_cpu = get_cpu();
-
-        /*
-         * POWER9 DD1 has a global addressed msgsnd, but for now we restrict
-         * IPIs to same core, because it requires additional synchronization
-         * for inter-core doorbells which we do not implement.
-         */
-        if (cpumask_test_cpu(cpu, cpu_sibling_mask(this_cpu)))
-                doorbell_global_ipi(cpu);
-        else
-                ic_cause_ipi(cpu);
-
-        put_cpu();
-}
-
 static void __init pnv_smp_probe(void)
 {
         if (xive_enabled())
@@ -311,14 +294,10 @@ static void __init pnv_smp_probe(void)
                 ic_cause_ipi = smp_ops->cause_ipi;
                 WARN_ON(!ic_cause_ipi);
 
-                if (cpu_has_feature(CPU_FTR_ARCH_300)) {
-                        if (cpu_has_feature(CPU_FTR_POWER9_DD1))
-                                smp_ops->cause_ipi = pnv_p9_dd1_cause_ipi;
-                        else
-                                smp_ops->cause_ipi = doorbell_global_ipi;
-                } else {
+                if (cpu_has_feature(CPU_FTR_ARCH_300))
+                        smp_ops->cause_ipi = doorbell_global_ipi;
+                else
                         smp_ops->cause_ipi = pnv_cause_ipi;
-                }
         }
 }