[SPARC64]: Add dummy host controller to root of all PCI domains.

We fake up a dummy one in all cases because that is the simplest
thing to do and it happens to be necessary for hypervisor systems.

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

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c
index 1bd7fc7c05e6..a2f129d29c20 100644
--- a/arch/sparc64/kernel/pci_sabre.c
+++ b/arch/sparc64/kernel/pci_sabre.c
@@ -319,6 +319,12 @@ static int __sabre_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
 static int sabre_read_pci_cfg(struct pci_bus *bus, unsigned int devfn,
                               int where, int size, u32 *value)
 {
+        struct pci_pbm_info *pbm = bus->sysdata;
+
+        if (bus == pbm->pci_bus && devfn == 0x00)
+                return pci_host_bridge_read_pci_cfg(bus, devfn, where,
+                                                    size, value);
+
         if (!bus->number && sabre_out_of_range(devfn)) {
                 switch (size) {
                 case 1:
@@ -435,6 +441,12 @@ static int __sabre_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
 static int sabre_write_pci_cfg(struct pci_bus *bus, unsigned int devfn,
                                int where, int size, u32 value)
 {
+        struct pci_pbm_info *pbm = bus->sysdata;
+
+        if (bus == pbm->pci_bus && devfn == 0x00)
+                return pci_host_bridge_write_pci_cfg(bus, devfn, where,
+                                                     size, value);
+
         if (bus->number)
                 return __sabre_write_pci_cfg(bus, devfn, where, size, value);