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https://github.com/edk2-porting/linux-next.git
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cdb9b9f730
This patch makes some small rearrangements of the PCI probing code in order to make it possible for arch code to set up the PCI tree without needing to duplicate code from the PCI layer unnecessarily. PPC64 will use this to set up the PCI tree from the Open Firmware device tree, which we need to do on logically-partitioned pSeries systems. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
79 lines
3.0 KiB
C
79 lines
3.0 KiB
C
/* Functions internal to the PCI core code */
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extern int pci_hotplug (struct device *dev, char **envp, int num_envp,
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char *buffer, int buffer_size);
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extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
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extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
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extern void pci_cleanup_rom(struct pci_dev *dev);
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extern int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
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unsigned long size, unsigned long align,
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unsigned long min, unsigned int type_mask,
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void (*alignf)(void *, struct resource *,
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unsigned long, unsigned long),
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void *alignf_data);
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/* Firmware callbacks */
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extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
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extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
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/* PCI /proc functions */
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#ifdef CONFIG_PROC_FS
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extern int pci_proc_attach_device(struct pci_dev *dev);
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extern int pci_proc_detach_device(struct pci_dev *dev);
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extern int pci_proc_attach_bus(struct pci_bus *bus);
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extern int pci_proc_detach_bus(struct pci_bus *bus);
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#else
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static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
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static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
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static inline int pci_proc_attach_bus(struct pci_bus *bus) { return 0; }
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static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
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#endif
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/* Functions for PCI Hotplug drivers to use */
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extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
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extern int pci_remove_device_safe(struct pci_dev *dev);
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extern unsigned char pci_max_busnr(void);
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extern unsigned char pci_bus_max_busnr(struct pci_bus *bus);
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extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
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extern void pci_remove_legacy_files(struct pci_bus *bus);
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/* Lock for read/write access to pci device and bus lists */
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extern spinlock_t pci_bus_lock;
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#ifdef CONFIG_X86_IO_APIC
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extern int pci_msi_quirk;
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#else
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#define pci_msi_quirk 0
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#endif
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#ifdef CONFIG_PCI_MSI
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void disable_msi_mode(struct pci_dev *dev, int pos, int type);
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#else
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static inline void disable_msi_mode(struct pci_dev *dev, int pos, int type) { }
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#endif
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extern int pcie_mch_quirk;
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extern struct device_attribute pci_dev_attrs[];
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extern struct class_device_attribute class_device_attr_cpuaffinity;
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/**
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* pci_match_one_device - Tell if a PCI device structure has a matching
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* PCI device id structure
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* @id: single PCI device id structure to match
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* @dev: the PCI device structure to match against
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*
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* Returns the matching pci_device_id structure or %NULL if there is no match.
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*/
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static inline const struct pci_device_id *
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pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
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{
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if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
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(id->device == PCI_ANY_ID || id->device == dev->device) &&
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(id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
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(id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
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!((id->class ^ dev->class) & id->class_mask))
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return id;
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return NULL;
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}
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