[PATCH] PCI: per-platform IA64_{FIRST,LAST}_DEVICE_VECTOR definitions

Abstract IA64_FIRST_DEVICE_VECTOR/IA64_LAST_DEVICE_VECTOR since SN platforms
use a subset of the IA64 range.  Implement this by making the above macros
global variables which the platform can override in it setup code.

Also add a reserve_irq_vector() routine used by SN to mark a vector's as
in-use when that weren't allocated through assign_irq_vector().

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 55ff52df5fe7..f8105783da2f 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -35,7 +35,7 @@ static int nr_msix_devices;
 
 #ifndef CONFIG_X86_IO_APIC
 int vector_irq[NR_VECTORS] = { [0 ... NR_VECTORS - 1] = -1};
-u8 irq_vector[NR_IRQ_VECTORS] = { FIRST_DEVICE_VECTOR , 0 };
+u8 irq_vector[NR_IRQ_VECTORS];
 #endif
 
 static struct msi_ops *msi_ops;
@@ -383,6 +383,10 @@ static int msi_init(void)
                 return status;
         }
 
+#ifndef CONFIG_X86_IO_APIC
+        irq_vector[0] = FIRST_DEVICE_VECTOR;
+#endif
+
         if (last_alloc_vector < 0) {
                 pci_msi_enable = 0;
                 printk(KERN_WARNING "PCI: No interrupt vectors available for MSI\n");