Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build

[linux-2.6-omap-h63xx.git] / arch / powerpc / kernel / irq.c

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 2f73f705d56449a3c4416f14180264f0e981d0ca..6ac8612da3c32a61f0fae070fd158be9f6d706f6 100644 (file)
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -98,7 +98,7 @@ EXPORT_SYMBOL(irq_desc);
 
 int distribute_irqs = 1;
 
-static inline unsigned long get_hard_enabled(void)
+static inline notrace unsigned long get_hard_enabled(void)
 {
        unsigned long enabled;
 
@@ -108,13 +108,13 @@ static inline unsigned long get_hard_enabled(void)
        return enabled;
 }
 
-static inline void set_soft_enabled(unsigned long enable)
+static inline notrace void set_soft_enabled(unsigned long enable)
 {
        __asm__ __volatile__("stb %0,%1(13)"
        : : "r" (enable), "i" (offsetof(struct paca_struct, soft_enabled)));
 }
 
-void raw_local_irq_restore(unsigned long en)
+notrace void raw_local_irq_restore(unsigned long en)
 {
        /*
         * get_paca()->soft_enabled = en;
@@ -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;
@@ -1073,7 +1106,7 @@ static const struct file_operations virq_debug_fops = {
 static int __init irq_debugfs_init(void)
 {
        if (debugfs_create_file("virq_mapping", S_IRUGO, powerpc_debugfs_root,
-                                NULL, &virq_debug_fops))
+                                NULL, &virq_debug_fops) == NULL)
                return -ENOMEM;
 
        return 0;