iommu/vt-d: Convert IR ioapic-setup to use remap_ops

The IOAPIC setup routine for interrupt remapping is VT-d
specific. Move it to the irq_remap_ops and add a call helper
function.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/iommu/intr_remapping.h b/drivers/iommu/intr_remapping.h
index 2744c9ae4aec..e8994f2b3bbe 100644
--- a/drivers/iommu/intr_remapping.h
+++ b/drivers/iommu/intr_remapping.h
@@ -24,6 +24,9 @@
 
 #ifdef CONFIG_IRQ_REMAP
 
+struct IO_APIC_route_entry;
+struct io_apic_irq_attr;
+
 extern int disable_intremap;
 extern int disable_sourceid_checking;
 extern int no_x2apic_optout;
@@ -46,6 +49,11 @@ struct irq_remap_ops {
 
         /* Enable fault handling */
         int  (*enable_faulting)(void);
+
+        /* IO-APIC setup routine */
+        int (*setup_ioapic_entry)(int irq, struct IO_APIC_route_entry *,
+                                  unsigned int, int,
+                                  struct io_apic_irq_attr *);
 };
 
 extern struct irq_remap_ops intel_irq_remap_ops;