Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfashe...

[pandora-kernel.git] / arch / powerpc / kernel / irq.c

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index dcc946e..6ac8612 100644 (file)
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -356,9 +356,42 @@ void __init init_IRQ(void)
 {
        if (ppc_md.init_IRQ)
                ppc_md.init_IRQ();
+
+       exc_lvl_ctx_init();
+
        irq_ctx_init();
 }
 
+#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
+struct thread_info   *critirq_ctx[NR_CPUS] __read_mostly;
+struct thread_info    *dbgirq_ctx[NR_CPUS] __read_mostly;
+struct thread_info *mcheckirq_ctx[NR_CPUS] __read_mostly;
+
+void exc_lvl_ctx_init(void)
+{
+       struct thread_info *tp;
+       int i;
+
+       for_each_possible_cpu(i) {
+               memset((void *)critirq_ctx[i], 0, THREAD_SIZE);
+               tp = critirq_ctx[i];
+               tp->cpu = i;
+               tp->preempt_count = 0;
+
+#ifdef CONFIG_BOOKE
+               memset((void *)dbgirq_ctx[i], 0, THREAD_SIZE);
+               tp = dbgirq_ctx[i];
+               tp->cpu = i;
+               tp->preempt_count = 0;
+
+               memset((void *)mcheckirq_ctx[i], 0, THREAD_SIZE);
+               tp = mcheckirq_ctx[i];
+               tp->cpu = i;
+               tp->preempt_count = HARDIRQ_OFFSET;
+#endif
+       }
+}
+#endif
 
 #ifdef CONFIG_IRQSTACKS
 struct thread_info *softirq_ctx[NR_CPUS] __read_mostly;
@@ -465,7 +498,7 @@ struct irq_host *irq_alloc_host(struct device_node *of_node,
        host->revmap_type = revmap_type;
        host->inval_irq = inval_irq;
        host->ops = ops;
-       host->of_node = of_node;
+       host->of_node = of_node_get(of_node);
 
        if (host->ops->match == NULL)
                host->ops->match = default_irq_host_match;