pci.h
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上传日期:2013-04-10
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文件大小:5k
- /*
- * c 2001 PPC 64 Team, IBM Corp
- *
- * 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.
- */
- #ifndef __PPC_KERNEL_PCI_H__
- #define __PPC_KERNEL_PCI_H__
- #include <linux/pci.h>
- #include <asm/pci-bridge.h>
- extern unsigned long isa_io_base;
- extern unsigned long isa_mem_base;
- extern unsigned long pci_dram_offset;
- /*******************************************************************
- * Platform independant variables referenced.
- *******************************************************************
- * Set pci_assign_all_busses to 1 if you want the kernel to re-assign
- * all PCI bus numbers.
- *******************************************************************/
- extern int pci_assign_all_busses;
- extern struct pci_controller* pci_alloc_pci_controller(char *model, enum phb_types controller_type);
- extern struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node);
- extern struct pci_controller* hose_head;
- extern struct pci_controller** hose_tail;
- /* PHB's are also in a table. */
- #define PCI_MAX_PHB 64
- extern int global_phb_number;
- extern struct pci_controller *phbtab[];
- /*******************************************************************
- * Platform functions that are brand specific implementation.
- *******************************************************************/
- extern unsigned long find_and_init_phbs(void);
- extern void fixup_resources(struct pci_dev *dev);
- extern void ppc64_pcibios_init(void);
- extern int pci_set_reset(struct pci_dev*,int);
- extern int device_Location(struct pci_dev*,char*);
- extern int format_device_location(struct pci_dev*,char*, int );
- extern struct pci_dev *ppc64_isabridge_dev; /* may be NULL if no ISA bus */
- /*******************************************************************
- * PCI device_node operations
- *******************************************************************/
- struct device_node;
- typedef void *(*traverse_func)(struct device_node *me, void *data);
- void *traverse_pci_devices(struct device_node *start, traverse_func pre, traverse_func post, void *data);
- void *traverse_all_pci_devices(traverse_func pre);
- void pci_devs_phb_init(void);
- void pci_fix_bus_sysdata(void);
- struct device_node *fetch_dev_dn(struct pci_dev *dev);
- void iSeries_pcibios_init_early(void);
- void pSeries_pcibios_init_early(void);
- void pSeries_pcibios_init(void);
- /* 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 = (struct device_node *)(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);
- }
- /* Use this macro after the PCI bus walk for max performance when it
- * is known that sysdata is correct.
- */
- #define PCI_GET_DN(dev) ((struct device_node *)((dev)->sysdata))
- /*******************************************************************
- * Platform configuration flags.. (Live in pci.c)
- *******************************************************************/
- extern int Pci_Large_Bus_System; /* System has > 256 buses */
- extern int Pci_Manage_Phb_Space; /* Manage Phb Space for IOAs*/
- /*******************************************************************
- * Helper macros for extracting data from pci structures.
- * PCI_GET_PHB_PTR(struct pci_dev*) returns the Phb pointer.
- * PCI_GET_PHB_NUMBER(struct pci_dev*) returns the Phb number.
- * PCI_GET_BUS_NUMBER(struct pci_dev*) returns the bus number.
- *******************************************************************/
- #define PCI_GET_PHB_PTR(dev) (((struct device_node *)(dev)->sysdata)->phb)
- #define PCI_GET_PHB_NUMBER(dev) (((dev)->bus->number&0x00FFFF00)>>8)
- #define PCI_GET_BUS_NUMBER(dev) ((dev)->bus->number&0x0000FF)
- /*******************************************************************
- * Pci Flight Recorder support.
- *******************************************************************/
- #define PCIFR(...) fr_Log_Entry(PciFr,__VA_ARGS__);
- extern struct flightRecorder* PciFr;
- extern int Pci_Trace_Flag;
- /*******************************************************************
- * Debugging Routines.
- *******************************************************************/
- extern void dumpResources(struct resource* Resource);
- extern void dumpPci_Controller(struct pci_controller* phb);
- extern void dumpPci_Bus(struct pci_bus* Pci_Bus);
- extern void dumpPci_Dev(struct pci_dev* Pci_Dev);
- extern void dump_Phb_tree(void);
- extern void dump_Bus_tree(void);
- extern void dump_Dev_tree(void);
- #endif /* __PPC_KERNEL_PCI_H__ */