LXR linux/drivers/pci/pcie/portdrv.h

   1/*
   2 * File:        portdrv.h
   3 * Purpose:     PCI Express Port Bus Driver's Internal Data Structures
   4 *
   5 * Copyright (C) 2004 Intel
   6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
   7 */
   8
   9#ifndef _PORTDRV_H_
  10#define _PORTDRV_H_
  11
  12#include <linux/compiler.h>
  13
  14#define PCIE_PORT_DEVICE_MAXSERVICES   4
  15/*
  16 * According to the PCI Express Base Specification 2.0, the indices of
  17 * the MSI-X table entries used by port services must not exceed 31
  18 */
  19#define PCIE_PORT_MAX_MSIX_ENTRIES      32
  20
  21#define get_descriptor_id(type, service) (((type - 4) << 4) | service)
  22
  23extern struct bus_type pcie_port_bus_type;
  24int pcie_port_device_register(struct pci_dev *dev);
  25#ifdef CONFIG_PM
  26int pcie_port_device_suspend(struct device *dev);
  27int pcie_port_device_resume(struct device *dev);
  28#endif
  29void pcie_port_device_remove(struct pci_dev *dev);
  30int __must_check pcie_port_bus_register(void);
  31void pcie_port_bus_unregister(void);
  32
  33struct pci_dev;
  34
  35void pcie_clear_root_pme_status(struct pci_dev *dev);
  36
  37#ifdef CONFIG_HOTPLUG_PCI_PCIE
  38extern bool pciehp_msi_disabled;
  39
  40static inline bool pciehp_no_msi(void)
  41{
  42        return pciehp_msi_disabled;
  43}
  44
  45#else  /* !CONFIG_HOTPLUG_PCI_PCIE */
  46static inline bool pciehp_no_msi(void) { return false; }
  47#endif /* !CONFIG_HOTPLUG_PCI_PCIE */
  48
  49#ifdef CONFIG_PCIE_PME
  50extern bool pcie_pme_msi_disabled;
  51
  52static inline void pcie_pme_disable_msi(void)
  53{
  54        pcie_pme_msi_disabled = true;
  55}
  56
  57static inline bool pcie_pme_no_msi(void)
  58{
  59        return pcie_pme_msi_disabled;
  60}
  61
  62void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable);
  63#else /* !CONFIG_PCIE_PME */
  64static inline void pcie_pme_disable_msi(void) {}
  65static inline bool pcie_pme_no_msi(void) { return false; }
  66static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {}
  67#endif /* !CONFIG_PCIE_PME */
  68
  69#ifdef CONFIG_ACPI
  70int pcie_port_acpi_setup(struct pci_dev *port, int *mask);
  71
  72static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
  73{
  74        return pcie_port_acpi_setup(port, mask);
  75}
  76#else /* !CONFIG_ACPI */
  77static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
  78{
  79        return 0;
  80}
  81#endif /* !CONFIG_ACPI */
  82
  83#endif /* _PORTDRV_H_ */
  84