Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

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 000000000000..c4f9023ea5ed
--- /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__ */