1 files changed, 90 insertions, 0 deletions
diff --git a/include/asm-ppc64/pci-bridge.h b/include/asm-ppc64/pci-bridge.h
new file mode 100644
index 00000000000..c4f9023ea5e
--- /dev/null
+++ b/include/asm-ppc64/pci-bridge.h
@@ -0,0 +1,90 @@
+#ifdef __KERNEL__
+#ifndef _ASM_PCI_BRIDGE_H
+#define _ASM_PCI_BRIDGE_H
+
+#include <linux/pci.h>
+
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+/*
+ * Structure of a PCI controller (host bridge)
+ */
+struct pci_controller {
+	struct pci_bus *bus;
+	char is_dynamic;
+	void *arch_data;
+	struct list_head list_node;
+
+	int first_busno;
+	int last_busno;
+
+	void __iomem *io_base_virt;
+	unsigned long io_base_phys;
+
+	/* Some machines have a non 1:1 mapping of
+	 * the PCI memory space in the CPU bus space
+	 */
+	unsigned long pci_mem_offset;
+	unsigned long pci_io_size;
+
+	struct pci_ops *ops;
+	volatile unsigned int __iomem *cfg_addr;
+	volatile unsigned char __iomem *cfg_data;
+
+	/* Currently, we limit ourselves to 1 IO range and 3 mem
+	 * ranges since the common pci_bus structure can't handle more
+	 */
+	struct resource io_resource;
+	struct resource mem_resources[3];
+	int global_number;		
+	int local_number;		
+	unsigned long buid;
+	unsigned long dma_window_base_cur;
+	unsigned long dma_window_size;
+};
+
+struct device_node *fetch_dev_dn(struct pci_dev *dev);
+
+/* Get a device_node from a pci_dev.  This code must be fast except in the case
+ * where the sysdata is incorrect and needs to be fixed up (hopefully just once)
+ */
+static inline struct device_node *pci_device_to_OF_node(struct pci_dev *dev)
+{
+	struct device_node *dn = dev->sysdata;
+
+	if (dn->devfn == dev->devfn && dn->busno == dev->bus->number)
+		return dn;	/* fast path.  sysdata is good */
+	else
+		return fetch_dev_dn(dev);
+}
+
+static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
+{
+	if (bus->self)
+		return pci_device_to_OF_node(bus->self);
+	else
+		return bus->sysdata; /* Must be root bus (PHB) */
+}
+
+extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
+					 struct device_node *dev);
+
+extern int pcibios_remove_root_bus(struct pci_controller *phb);
+
+extern void phbs_remap_io(void);
+
+static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
+{
+	struct device_node *busdn = bus->sysdata;
+
+	BUG_ON(busdn == NULL);
+	return busdn->phb;
+}
+
+#endif
+#endif /* __KERNEL__ */