Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2

[safe/jmp/linux-2.6] / arch / powerpc / platforms / pseries / xics.c

diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 75a289b..80b5134 100644 (file)
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -153,9 +153,10 @@ static int get_irq_server(unsigned int virq, unsigned int strict_check)
 {
        int server;
        /* For the moment only implement delivery to all cpus or one cpu */
-       cpumask_t cpumask = irq_desc[virq].affinity;
+       cpumask_t cpumask;
        cpumask_t tmp = CPU_MASK_NONE;
 
+       cpumask_copy(&cpumask, irq_desc[virq].affinity);
        if (!distribute_irqs)
                return default_server;
 
@@ -332,7 +333,7 @@ static void xics_eoi_lpar(unsigned int virq)
        lpar_xirr_info_set((0xff << 24) | irq);
 }
 
-static void xics_set_affinity(unsigned int virq, cpumask_t cpumask)
+static void xics_set_affinity(unsigned int virq, const struct cpumask *cpumask)
 {
        unsigned int irq;
        int status;
@@ -744,9 +745,18 @@ static void xics_set_cpu_priority(unsigned char cppr)
 /* Have the calling processor join or leave the specified global queue */
 static void xics_set_cpu_giq(unsigned int gserver, unsigned int join)
 {
-       int status = rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE,
-               (1UL << interrupt_server_size) - 1 - gserver, join);
-       WARN_ON(status < 0);
+       int index;
+       int status;
+
+       if (!rtas_indicator_present(GLOBAL_INTERRUPT_QUEUE, NULL))
+               return;
+
+       index = (1UL << interrupt_server_size) - 1 - gserver;
+
+       status = rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, index, join);
+
+       WARN(status < 0, "set-indicator(%d, %d, %u) returned %d\n",
+            GLOBAL_INTERRUPT_QUEUE, index, join, status);
 }
 
 void xics_setup_cpu(void)
@@ -860,8 +870,8 @@ void xics_migrate_irqs_away(void)
                       virq, cpu);
 
                /* Reset affinity to all cpus */
-               irq_desc[virq].affinity = CPU_MASK_ALL;
-               desc->chip->set_affinity(virq, CPU_MASK_ALL);
+               cpumask_setall(irq_desc[virq].affinity);
+               desc->chip->set_affinity(virq, cpu_all_mask);
 unlock:
                spin_unlock_irqrestore(&desc->lock, flags);
        }