[PATCH] ppc64: global interrupt queue cleanup

[safe/jmp/linux-2.6] / arch / ppc64 / kernel / xics.c

diff --git a/arch/ppc64/kernel/xics.c b/arch/ppc64/kernel/xics.c
index eedd1d3..879f39b 100644 (file)
--- a/arch/ppc64/kernel/xics.c
+++ b/arch/ppc64/kernel/xics.c
@@ -432,6 +432,7 @@ void xics_cause_IPI(int cpu)
 {
        ops->qirr_info(cpu, IPI_PRIORITY);
 }
+#endif /* CONFIG_SMP */
 
 void xics_setup_cpu(void)
 {
@@ -439,9 +440,17 @@ void xics_setup_cpu(void)
 
        ops->cppr_info(cpu, 0xff);
        iosync();
-}
 
-#endif /* CONFIG_SMP */
+       /*
+        * Put the calling processor into the GIQ.  This is really only
+        * necessary from a secondary thread as the OF start-cpu interface
+        * performs this function for us on primary threads.
+        *
+        * XXX: undo of teardown on kexec needs this too, as may hotplug
+        */
+       rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE,
+               (1UL << interrupt_server_size) - 1 - default_distrib_server, 1);
+}
 
 void xics_init_IRQ(void)
 {
@@ -563,8 +572,7 @@ nextnode:
        for (; i < NR_IRQS; ++i)
                get_irq_desc(i)->handler = &xics_pic;
 
-       ops->cppr_info(boot_cpuid, 0xff);
-       iosync();
+       xics_setup_cpu();
 
        ppc64_boot_msg(0x21, "XICS Done");
 }