[IA64] Initialize interrupts later (from init_IRQ())

Thomas Gleixner is cleaning up the generic irq code, and ia64 ran
into problems because it calls register_intr() before early_irq_init()
is called.  Move the call to acpi_boot_init() from setup_arch() to
init_IRQ().

As a bonus - moving the call later means we no longer need the
hacks in iosapic.c to switch between the bootmem and regular
allocator - we can just used kzalloc() for allocation.

Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index f14c35f9b03a..07d4f94e40ba 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -30,6 +30,7 @@
 #include <linux/bitops.h>
 #include <linux/irq.h>
 #include <linux/ratelimit.h>
+#include <linux/acpi.h>
 
 #include <asm/delay.h>
 #include <asm/intrinsics.h>
@@ -650,6 +651,9 @@ ia64_native_register_ipi(void)
 void __init
 init_IRQ (void)
 {
+#ifdef CONFIG_ACPI
+        acpi_boot_init();
+#endif
         ia64_register_ipi();
         register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL);
 #ifdef CONFIG_SMP