Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

[linux-2.6-omap-h63xx.git] / arch / blackfin / kernel / irqchip.c

diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index ab8209cbbad0368f1ebc2bc252c7532478ec6b5a..7fd12656484666ee4c29784a1d2d1e0e4e5fee04 100644 (file)
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -35,6 +35,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <asm/trace.h>
+#include <asm/pda.h>
 
 static atomic_t irq_err_count;
 static spinlock_t irq_controller_lock;
@@ -91,8 +92,13 @@ int show_interrupts(struct seq_file *p, void *v)
                seq_putc(p, '\n');
  skip:
                spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-       } else if (i == NR_IRQS)
+       } else if (i == NR_IRQS) {
+               seq_printf(p, "NMI: ");
+               for_each_online_cpu(j)
+                       seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
+               seq_printf(p, "     CORE  Non Maskable Interrupt\n");
                seq_printf(p, "Err: %10u\n",  atomic_read(&irq_err_count));
+       }
        return 0;
 }
 
@@ -138,11 +144,15 @@ asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
 #endif
        generic_handle_irq(irq);
 
-#ifndef CONFIG_IPIPE   /* Useless and bugous over the I-pipe: IRQs are threaded. */
-       /* If we're the only interrupt running (ignoring IRQ15 which is for
-          syscalls), lower our priority to IRQ14 so that softirqs run at
-          that level.  If there's another, lower-level interrupt, irq_exit
-          will defer softirqs to that.  */
+#ifndef CONFIG_IPIPE
+       /*
+        * If we're the only interrupt running (ignoring IRQ15 which
+        * is for syscalls), lower our priority to IRQ14 so that
+        * softirqs run at that level.  If there's another,
+        * lower-level interrupt, irq_exit will defer softirqs to
+        * that. If the interrupt pipeline is enabled, we are already
+        * running at IRQ14 priority, so we don't need this code.
+        */
        CSYNC();
        pending = bfin_read_IPEND() & ~0x8000;
        other_ints = pending & (pending - 1);