+++ /dev/null
-#ifdef __KERNEL__
-#ifndef _ASM_PCI_BRIDGE_H
-#define _ASM_PCI_BRIDGE_H
-
-#include <linux/ioport.h>
-#include <linux/pci.h>
-
-struct device_node;
-struct pci_controller;
-
-/*
- * pci_io_base returns the memory address at which you can access
- * the I/O space for PCI bus number `bus' (or NULL on error).
- */
-extern void __iomem *pci_bus_io_base(unsigned int bus);
-extern unsigned long pci_bus_io_base_phys(unsigned int bus);
-extern unsigned long pci_bus_mem_base_phys(unsigned int bus);
-
-/* Allocate a new PCI host bridge structure */
-extern struct pci_controller* pcibios_alloc_controller(void);
-
-/* Helper function for setting up resources */
-extern void pci_init_resource(struct resource *res, resource_size_t start,
- resource_size_t end, int flags, char *name);
-
-/* Get the PCI host controller for a bus */
-extern struct pci_controller* pci_bus_to_hose(int bus);
-
-/* Get the PCI host controller for an OF device */
-extern struct pci_controller*
-pci_find_hose_for_OF_device(struct device_node* node);
-
-/* Fill up host controller resources from the OF node */
-extern void
-pci_process_bridge_OF_ranges(struct pci_controller *hose,
- struct device_node *dev, int primary);
-
-/*
- * Structure of a PCI controller (host bridge)
- */
-struct pci_controller {
- int index; /* PCI domain number */
- struct pci_controller *next;
- struct pci_bus *bus;
- void *arch_data;
- struct device *parent;
-
- int first_busno;
- int last_busno;
- int bus_offset;
-
- void __iomem *io_base_virt;
- resource_size_t io_base_phys;
-
- /* Some machines (PReP) have a non 1:1 mapping of
- * the PCI memory space in the CPU bus space
- */
- resource_size_t pci_mem_offset;
-
- struct pci_ops *ops;
- volatile unsigned int __iomem *cfg_addr;
- volatile void __iomem *cfg_data;
- /*
- * If set, indirect method will set the cfg_type bit as
- * needed to generate type 1 configuration transactions.
- */
- int set_cfg_type;
-
- /* 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 mem_resource_count;
-
- /* Host bridge I/O and Memory space
- * Used for BAR placement algorithms
- */
- struct resource io_space;
- struct resource mem_space;
-};
-
-static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
-{
- return bus->sysdata;
-}
-
-/* These are used for config access before all the PCI probing
- has been done. */
-int early_read_config_byte(struct pci_controller *hose, int bus, int dev_fn,
- int where, u8 *val);
-int early_read_config_word(struct pci_controller *hose, int bus, int dev_fn,
- int where, u16 *val);
-int early_read_config_dword(struct pci_controller *hose, int bus, int dev_fn,
- int where, u32 *val);
-int early_write_config_byte(struct pci_controller *hose, int bus, int dev_fn,
- int where, u8 val);
-int early_write_config_word(struct pci_controller *hose, int bus, int dev_fn,
- int where, u16 val);
-int early_write_config_dword(struct pci_controller *hose, int bus, int dev_fn,
- int where, u32 val);
-
-extern void setup_indirect_pci_nomap(struct pci_controller* hose,
- void __iomem *cfg_addr, void __iomem *cfg_data);
-extern void setup_indirect_pci(struct pci_controller* hose,
- u32 cfg_addr, u32 cfg_data);
-extern void setup_grackle(struct pci_controller *hose);
-
-extern unsigned char common_swizzle(struct pci_dev *, unsigned char *);
-
-/*
- * The following code swizzles for exactly one bridge. The routine
- * common_swizzle below handles multiple bridges. But there are a
- * some boards that don't follow the PCI spec's suggestion so we
- * break this piece out separately.
- */
-static inline unsigned char bridge_swizzle(unsigned char pin,
- unsigned char idsel)
-{
- return (((pin-1) + idsel) % 4) + 1;
-}
-
-/*
- * The following macro is used to lookup irqs in a standard table
- * format for those PPC systems that do not already have PCI
- * interrupts properly routed.
- */
-/* FIXME - double check this */
-#define PCI_IRQ_TABLE_LOOKUP \
-({ long _ctl_ = -1; \
- if (idsel >= min_idsel && idsel <= max_idsel && pin <= irqs_per_slot) \
- _ctl_ = pci_irq_table[idsel - min_idsel][pin-1]; \
- _ctl_; })
-
-/*
- * Scan the buses below a given PCI host bridge and assign suitable
- * resources to all devices found.
- */
-extern int pciauto_bus_scan(struct pci_controller *, int);
-
-#ifdef CONFIG_PCI
-extern unsigned long pci_address_to_pio(phys_addr_t address);
-#else
-static inline unsigned long pci_address_to_pio(phys_addr_t address)
-{
- return (unsigned long)-1;
-}
-#endif
-
-#endif
-#endif /* __KERNEL__ */
git.samba.org / sfrench / cifs-2.6.git / blobdiff