# \[PATCH v8 02/45\] powerpc/pci: Override pcibios\_setup\_bridge()

- From: Gavin Shan \<hidden\>
- Date: 2016-02-17 03:43:45 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2016/02/8118664
- Thread: https://ratatoskr.run/linuxppc-dev/2016/02/8118662/t.md

```text
This overrides pcibios_setup_bridge() that is called to update PCI
bridge windows when PCI resource assignment is completed, to assign
PE and setup various (resource) mapping for the PE in subsequent
patches.

Signed-off-by: Gavin Shan <redacted>
---
 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 9f165e8..b688d04 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -33,6 +33,8 @@ struct pci_controller_ops {
 
 	/* Called during PCI resource reassignment */
 	resource_size_t (*window_alignment)(struct pci_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 0f7a60f..40df3a5 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -124,6 +124,14 @@ 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
```