diff options
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 74 |
1 files changed, 47 insertions, 27 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index f6b58b32a67c..fcd81911b127 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -38,21 +38,21 @@ int pci_probe_reset_function(struct pci_dev *dev); * struct pci_platform_pm_ops - Firmware PM callbacks * * @is_manageable: returns 'true' if given device is power manageable by the - * platform firmware + * platform firmware * * @set_state: invokes the platform firmware to set the device's power state * * @get_state: queries the platform firmware for a device's current power state * * @choose_state: returns PCI power state of given device preferred by the - * platform; to be used during system-wide transitions from a - * sleeping state to the working state and vice versa + * platform; to be used during system-wide transitions from a + * sleeping state to the working state and vice versa * * @set_wakeup: enables/disables wakeup capability for the device * * @need_resume: returns 'true' if the given device (which is currently - * suspended) needs to be resumed to be configured for system - * wakeup. + * suspended) needs to be resumed to be configured for system + * wakeup. * * If given platform is generally capable of power managing PCI devices, all of * these callbacks are mandatory. @@ -112,7 +112,7 @@ struct pci_vpd_ops { struct pci_vpd { const struct pci_vpd_ops *ops; - struct bin_attribute *attr; /* descriptor for sysfs VPD entry */ + struct bin_attribute *attr; /* Descriptor for sysfs VPD entry */ struct mutex lock; unsigned int len; u16 flag; @@ -199,7 +199,7 @@ extern const struct attribute_group *pci_bus_groups[]; /** * pci_match_one_device - Tell if a PCI device structure has a matching - * PCI device id structure + * PCI device id structure * @id: single PCI device id structure to match * @dev: the PCI device structure to match against * @@ -231,7 +231,7 @@ struct pci_slot_attribute { enum pci_bar_type { pci_bar_unknown, /* Standard PCI BAR probe */ - pci_bar_io, /* An io port BAR */ + pci_bar_io, /* An I/O port BAR */ pci_bar_mem32, /* A 32-bit memory BAR */ pci_bar_mem64, /* A 64-bit memory BAR */ }; @@ -255,24 +255,24 @@ void pci_disable_bridge_window(struct pci_dev *dev); /* Single Root I/O Virtualization */ struct pci_sriov { - int pos; /* capability position */ - int nres; /* number of resources */ - u32 cap; /* SR-IOV Capabilities */ - u16 ctrl; /* SR-IOV Control */ - u16 total_VFs; /* total VFs associated with the PF */ - u16 initial_VFs; /* initial VFs associated with the PF */ - u16 num_VFs; /* number of VFs available */ - u16 offset; /* first VF Routing ID offset */ - u16 stride; /* following VF stride */ - u16 vf_device; /* VF device ID */ - u32 pgsz; /* page size for BAR alignment */ - u8 link; /* Function Dependency Link */ - u8 max_VF_buses; /* max buses consumed by VFs */ - u16 driver_max_VFs; /* max num VFs driver supports */ - struct pci_dev *dev; /* lowest numbered PF */ - struct pci_dev *self; /* this PF */ - resource_size_t barsz[PCI_SRIOV_NUM_BARS]; /* VF BAR size */ - bool drivers_autoprobe; /* auto probing of VFs by driver */ + int pos; /* Capability position */ + int nres; /* Number of resources */ + u32 cap; /* SR-IOV Capabilities */ + u16 ctrl; /* SR-IOV Control */ + u16 total_VFs; /* Total VFs associated with the PF */ + u16 initial_VFs; /* Initial VFs associated with the PF */ + u16 num_VFs; /* Number of VFs available */ + u16 offset; /* First VF Routing ID offset */ + u16 stride; /* Following VF stride */ + u16 vf_device; /* VF device ID */ + u32 pgsz; /* Page size for BAR alignment */ + u8 link; /* Function Dependency Link */ + u8 max_VF_buses; /* Max buses consumed by VFs */ + u16 driver_max_VFs; /* Max num VFs driver supports */ + struct pci_dev *dev; /* Lowest numbered PF */ + struct pci_dev *self; /* This PF */ + resource_size_t barsz[PCI_SRIOV_NUM_BARS]; /* VF BAR size */ + bool drivers_autoprobe; /* Auto probing of VFs by driver */ }; /* pci_dev priv_flags */ @@ -335,13 +335,33 @@ static inline resource_size_t pci_resource_alignment(struct pci_dev *dev, if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END) return pci_sriov_resource_alignment(dev, resno); #endif - if (dev->class >> 8 == PCI_CLASS_BRIDGE_CARDBUS) + if (dev->class >> 8 == PCI_CLASS_BRIDGE_CARDBUS) return pci_cardbus_resource_alignment(res); return resource_alignment(res); } void pci_enable_acs(struct pci_dev *dev); +#ifdef CONFIG_PCIEASPM +void pcie_aspm_init_link_state(struct pci_dev *pdev); +void pcie_aspm_exit_link_state(struct pci_dev *pdev); +void pcie_aspm_pm_state_change(struct pci_dev *pdev); +void pcie_aspm_powersave_config_link(struct pci_dev *pdev); +#else +static inline void pcie_aspm_init_link_state(struct pci_dev *pdev) { } +static inline void pcie_aspm_exit_link_state(struct pci_dev *pdev) { } +static inline void pcie_aspm_pm_state_change(struct pci_dev *pdev) { } +static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev) { } +#endif + +#ifdef CONFIG_PCIEASPM_DEBUG +void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev); +void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev); +#else +static inline void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev) { } +static inline void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev) { } +#endif + #ifdef CONFIG_PCIE_PTM void pci_ptm_init(struct pci_dev *dev); #else |