Handle PCI devices that actually use an ISA IRQ for the cia and tsunami

chipsets.  An example of this is the USB controller on these chipsets.
With this, I can now use USB devices on the test Alpha I am borrowing at
the moment.

Reviewed by:	dfr, obrien

2 files changed, 9 insertions, 0 deletions

diff --git a/sys/alpha/isa/isa.c b/sys/alpha/isa/isa.c
index c757b77..eee09dd 100644
--- a/sys/alpha/isa/isa.c
+++ b/sys/alpha/isa/isa.c
@@ -136,6 +136,13 @@ isa_alloc_intr(device_t bus, device_t child, int irq)
 				     0, child);
 }
 
+struct resource *
+isa_alloc_intrs(device_t bus, device_t child, u_long start, u_long end)
+{
+	return rman_reserve_resource(&isa_irq_rman, start, end,
+				     end - start + 1, 0, child);
+}
+
 int
 isa_release_intr(device_t bus, device_t child, struct resource *r)
 {
diff --git a/sys/alpha/isa/isavar.h b/sys/alpha/isa/isavar.h
index a77cb35..6f101d3 100644
--- a/sys/alpha/isa/isavar.h
+++ b/sys/alpha/isa/isavar.h
@@ -32,6 +32,8 @@
  */
 void isa_init_intr(void);
 struct resource *isa_alloc_intr(device_t bus, device_t child, int irq);
+struct resource *isa_alloc_intrs(device_t bus, device_t child, u_long start,
+				 u_long end);
 int isa_release_intr(device_t bus, device_t child, struct resource *r);
 int isa_setup_intr(device_t dev, device_t child,
 		   struct resource *irq, int flags,