Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

[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 dcc946e670991c7f972141ee162b814789fd4435..d972decf0324d4b92e748f4a271e4ad3b4ed4475 100644 (file)
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -77,22 +77,12 @@ static int ppc_spurious_interrupts;
 EXPORT_SYMBOL(__irq_offset_value);
 atomic_t ppc_n_lost_interrupts;
 
-#ifndef CONFIG_PPC_MERGE
-#define NR_MASK_WORDS  ((NR_IRQS + 31) / 32)
-unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
-#endif
-
 #ifdef CONFIG_TAU_INT
 extern int tau_initialized;
 extern int tau_interrupts(int);
 #endif
 #endif /* CONFIG_PPC32 */
 
-#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_MERGE)
-extern atomic_t ipi_recv;
-extern atomic_t ipi_sent;
-#endif
-
 #ifdef CONFIG_PPC64
 EXPORT_SYMBOL(irq_desc);
 
@@ -216,21 +206,14 @@ int show_interrupts(struct seq_file *p, void *v)
 skip:
                spin_unlock_irqrestore(&desc->lock, flags);
        } else if (i == NR_IRQS) {
-#ifdef CONFIG_PPC32
-#ifdef CONFIG_TAU_INT
+#if defined(CONFIG_PPC32) && defined(CONFIG_TAU_INT)
                if (tau_initialized){
                        seq_puts(p, "TAU: ");
                        for_each_online_cpu(j)
                                seq_printf(p, "%10u ", tau_interrupts(j));
                        seq_puts(p, "  PowerPC             Thermal Assist (cpu temp)\n");
                }
-#endif
-#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_MERGE)
-               /* should this be per processor send/receive? */
-               seq_printf(p, "IPI (recv/sent): %10u/%u\n",
-                               atomic_read(&ipi_recv), atomic_read(&ipi_sent));
-#endif
-#endif /* CONFIG_PPC32 */
+#endif /* CONFIG_PPC32 && CONFIG_TAU_INT*/
                seq_printf(p, "BAD: %10u\n", ppc_spurious_interrupts);
        }
        return 0;
@@ -356,9 +339,42 @@ 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;
@@ -421,8 +437,6 @@ void do_softirq(void)
  * IRQ controller and virtual interrupts
  */
 
-#ifdef CONFIG_PPC_MERGE
-
 static LIST_HEAD(irq_hosts);
 static DEFINE_SPINLOCK(irq_big_lock);
 static DEFINE_PER_CPU(unsigned int, irq_radix_reader);
@@ -465,7 +479,7 @@ 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;
@@ -1081,8 +1095,6 @@ static int __init irq_debugfs_init(void)
 __initcall(irq_debugfs_init);
 #endif /* CONFIG_VIRQ_DEBUG */
 
-#endif /* CONFIG_PPC_MERGE */
-
 #ifdef CONFIG_PPC64
 static int __init setup_noirqdistrib(char *str)
 {