[PATCH v6 14/42] powerpc/pci: Override pcibios_setup_bridge()

Gavin Shan
2015-08-06T04:11:19Z

The patch overrides pcibios_setup_bridge(), called to update PCI
bridge windows at completion of PCI resource assignment, to assign
PE and setup various (resource) mapping in next patch.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/pci-bridge.h | 2 ++
arch/powerpc/kernel/pci-common.c | 8 ++++++++
2 files changed, 10 insertions(+)

diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index d627abf..65357a9 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -34,6 +34,8 @@ struct pci_controller_ops {
/* Called during PCI resource reassignment */
resource_size_t (*window_alignment)(struct pci_bus *bus,
unsigned long type);
+ void (*setup_bridge)(struct pci_bus *bus,
+ unsigned long type);
void (*reset_secondary_bus)(struct pci_dev *dev);

#ifdef CONFIG_PCI_MSI
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index b9de34d..9c88dcd1 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -123,6 +123,14 @@ resource_size_t pcibios_window_alignment(struct pci_bus *bus,
return 1;
}

+void pcibios_setup_bridge(struct pci_bus *bus, unsigned long type)
+{
+ struct pci_controller *hose = pci_bus_to_host(bus);
+
+ if (hose->controller_ops.setup_bridge)
+ hose->controller_ops.setup_bridge(bus, type);
+}
+
void pcibios_reset_secondary_bus(struct pci_dev *dev)
{
struct pci_controller *phb = pci_bus_to_host(dev->bus);
--
2.1.0