[SPARC64]: Beginnings of SUN4V PCI controller support.

Abstract out IOMMU operations so that we can have a different
set of calls on sun4v, which needs to do things through
hypervisor calls.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 2ff7c32ab0ce..95ffa9418620 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -188,6 +188,7 @@ extern void psycho_init(int, char *);
 extern void schizo_init(int, char *);
 extern void schizo_plus_init(int, char *);
 extern void tomatillo_init(int, char *);
+extern void sun4v_pci_init(int, char *);
 
 static struct {
         char *model_name;
@@ -204,6 +205,7 @@ static struct {
         { "pci108e,8002", schizo_plus_init },
         { "SUNW,tomatillo", tomatillo_init },
         { "pci108e,a801", tomatillo_init },
+        { "SUNW,sun4v-pci", sun4v_pci_init },
 };
 #define PCI_NUM_CONTROLLER_TYPES (sizeof(pci_controller_table) / \
                                   sizeof(pci_controller_table[0]))
@@ -283,6 +285,12 @@ int __init pcic_present(void)
         return pci_controller_scan(pci_is_controller);
 }
 
+struct pci_iommu_ops *pci_iommu_ops;
+EXPORT_SYMBOL(pci_iommu_ops);
+
+extern struct pci_iommu_ops pci_sun4u_iommu_ops,
+        pci_sun4v_iommu_ops;
+
 /* Find each controller in the system, attach and initialize
  * software state structure for each and link into the
  * pci_controller_root.  Setup the controller enough such
@@ -290,6 +298,11 @@ int __init pcic_present(void)
  */
 static void __init pci_controller_probe(void)
 {
+        if (tlb_type == hypervisor)
+                pci_iommu_ops = &pci_sun4v_iommu_ops;
+        else
+                pci_iommu_ops = &pci_sun4u_iommu_ops;
+
         printk("PCI: Probing for controllers.\n");
 
         pci_controller_scan(pci_controller_init);