cris build fixes: irq fixes

- New file include/asm-cris/irq_regs.h.
- Change handling of registers for do_IRQ.
- Add GENERIC_HARDIRQS to Kconfig.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 8 insertions, 2 deletions

diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 21900a9378bb..f653772a87a8 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -57,6 +57,10 @@ menu "General setup"
 
 source "fs/Kconfig.binfmt"
 
+config GENERIC_HARDIRQS
+        bool
+        default y
+
 config ETRAX_CMDLINE
         string "Kernel command line"
         default "root=/dev/mtdblock3"
diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c
index 5c27ff86121b..2dfac8c79090 100644
--- a/arch/cris/kernel/irq.c
+++ b/arch/cris/kernel/irq.c
@@ -2,7 +2,7 @@
  *
  *      linux/arch/cris/kernel/irq.c
  *
- *      Copyright (c) 2000,2001 Axis Communications AB
+ *      Copyright (c) 2000,2007 Axis Communications AB
  *
  *      Authors: Bjorn Wesen (bjornw@axis.com)
  *
@@ -92,14 +92,16 @@ skip:
 asmlinkage void do_IRQ(int irq, struct pt_regs * regs)
 {
         unsigned long sp;
+        struct pt_regs *old_regs = set_irq_regs(regs);
         irq_enter();
         sp = rdsp();
         if (unlikely((sp & (PAGE_SIZE - 1)) < (PAGE_SIZE/8))) {
                 printk("do_IRQ: stack overflow: %lX\n", sp);
                 show_stack(NULL, (unsigned long *)sp);
         }
-        __do_IRQ(irq, regs);
+        __do_IRQ(irq);
         irq_exit();
+        set_irq_regs(old_regs);
 }
 
 void weird_irq(void)