diff options
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 111 |
1 files changed, 88 insertions, 23 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index d22d1b807701..6394e7746fb5 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -4,6 +4,9 @@ #include <linux/pci.h> +/* Number of possible devfns: 0.0 to 1f.7 inclusive */ +#define MAX_NR_DEVFNS 256 + #define PCI_FIND_CAP_TTL 48 #define PCI_VSEC_ID_INTEL_TBT 0x1234 /* Thunderbolt */ @@ -12,6 +15,7 @@ extern const unsigned char pcie_link_speed[]; extern bool pci_early_dump; bool pcie_cap_has_lnkctl(const struct pci_dev *dev); +bool pcie_cap_has_rtctl(const struct pci_dev *dev); /* Functions internal to the PCI core code */ @@ -39,6 +43,11 @@ int pci_probe_reset_function(struct pci_dev *dev); int pci_bridge_secondary_bus_reset(struct pci_dev *dev); int pci_bus_error_reset(struct pci_dev *dev); +#define PCI_PM_D2_DELAY 200 +#define PCI_PM_D3_WAIT 10 +#define PCI_PM_D3COLD_WAIT 100 +#define PCI_PM_BUS_WAIT 50 + /** * struct pci_platform_pm_ops - Firmware PM callbacks * @@ -80,10 +89,12 @@ struct pci_platform_pm_ops { int pci_set_platform_pm(const struct pci_platform_pm_ops *ops); void pci_update_current_state(struct pci_dev *dev, pci_power_t state); void pci_refresh_power_state(struct pci_dev *dev); -void pci_power_up(struct pci_dev *dev); +int pci_power_up(struct pci_dev *dev); void pci_disable_enabled_device(struct pci_dev *dev); int pci_finish_runtime_suspend(struct pci_dev *dev); void pcie_clear_root_pme_status(struct pci_dev *dev); +bool pci_check_pme_status(struct pci_dev *dev); +void pci_pme_wakeup_bus(struct pci_bus *bus); int __pci_pme_wakeup(struct pci_dev *dev, void *ign); void pci_pme_restore(struct pci_dev *dev); bool pci_dev_need_resume(struct pci_dev *dev); @@ -97,6 +108,7 @@ void pci_allocate_cap_save_buffers(struct pci_dev *dev); void pci_free_cap_save_buffers(struct pci_dev *dev); bool pci_bridge_d3_possible(struct pci_dev *dev); void pci_bridge_d3_update(struct pci_dev *dev); +void pci_bridge_wait_for_secondary_bus(struct pci_dev *dev); static inline void pci_wakeup_event(struct pci_dev *dev) { @@ -118,11 +130,25 @@ static inline bool pci_power_manageable(struct pci_dev *pci_dev) return !pci_has_subordinate(pci_dev) || pci_dev->bridge_d3; } +static inline bool pcie_downstream_port(const struct pci_dev *dev) +{ + int type = pci_pcie_type(dev); + + return type == PCI_EXP_TYPE_ROOT_PORT || + type == PCI_EXP_TYPE_DOWNSTREAM || + type == PCI_EXP_TYPE_PCIE_BRIDGE; +} + int pci_vpd_init(struct pci_dev *dev); void pci_vpd_release(struct pci_dev *dev); void pcie_vpd_create_sysfs_dev_files(struct pci_dev *dev); void pcie_vpd_remove_sysfs_dev_files(struct pci_dev *dev); +/* PCI Virtual Channel */ +int pci_save_vc_state(struct pci_dev *dev); +void pci_restore_vc_state(struct pci_dev *dev); +void pci_allocate_vc_save_buffers(struct pci_dev *dev); + /* PCI /proc functions */ #ifdef CONFIG_PROC_FS int pci_proc_attach_device(struct pci_dev *dev); @@ -196,6 +222,10 @@ extern const struct attribute_group *pcibus_groups[]; extern const struct device_type pci_dev_type; extern const struct attribute_group *pci_bus_groups[]; +extern unsigned long pci_hotplug_io_size; +extern unsigned long pci_hotplug_mmio_size; +extern unsigned long pci_hotplug_mmio_pref_size; +extern unsigned long pci_hotplug_bus_size; /** * pci_match_one_device - Tell if a PCI device structure has a matching @@ -236,6 +266,9 @@ enum pci_bar_type { pci_bar_mem64, /* A 64-bit memory BAR */ }; +struct device *pci_get_host_bridge_device(struct pci_dev *dev); +void pci_put_host_bridge_device(struct device *dev); + int pci_configure_extended_tags(struct pci_dev *dev, void *ign); bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl, int crs_timeout); @@ -256,6 +289,8 @@ bool pci_bus_clip_resource(struct pci_dev *dev, int idx); void pci_reassigndev_resource_alignment(struct pci_dev *dev); void pci_disable_bridge_window(struct pci_dev *dev); +struct pci_bus *pci_bus_get(struct pci_bus *bus); +void pci_bus_put(struct pci_bus *bus); /* PCIe link information */ #define PCIE_SPEED2STR(speed) \ @@ -279,6 +314,7 @@ u32 pcie_bandwidth_capable(struct pci_dev *dev, enum pci_bus_speed *speed, enum pcie_link_width *width); void __pcie_print_link_status(struct pci_dev *dev, bool verbose); void pcie_report_downtraining(struct pci_dev *dev); +void pcie_update_link_speed(struct pci_bus *bus, u16 link_status); /* Single Root I/O Virtualization */ struct pci_sriov { @@ -418,13 +454,30 @@ static inline void pci_restore_dpc_state(struct pci_dev *dev) {} #endif #ifdef CONFIG_PCI_ATS +/* Address Translation Service */ +void pci_ats_init(struct pci_dev *dev); void pci_restore_ats_state(struct pci_dev *dev); #else -static inline void pci_restore_ats_state(struct pci_dev *dev) -{ -} +static inline void pci_ats_init(struct pci_dev *d) { } +static inline void pci_restore_ats_state(struct pci_dev *dev) { } #endif /* CONFIG_PCI_ATS */ +#ifdef CONFIG_PCI_PRI +void pci_pri_init(struct pci_dev *dev); +void pci_restore_pri_state(struct pci_dev *pdev); +#else +static inline void pci_pri_init(struct pci_dev *dev) { } +static inline void pci_restore_pri_state(struct pci_dev *pdev) { } +#endif + +#ifdef CONFIG_PCI_PASID +void pci_pasid_init(struct pci_dev *dev); +void pci_restore_pasid_state(struct pci_dev *pdev); +#else +static inline void pci_pasid_init(struct pci_dev *dev) { } +static inline void pci_restore_pasid_state(struct pci_dev *pdev) { } +#endif + #ifdef CONFIG_PCI_IOV int pci_iov_init(struct pci_dev *dev); void pci_iov_release(struct pci_dev *dev); @@ -433,7 +486,7 @@ void pci_iov_update_resource(struct pci_dev *dev, int resno); resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno); void pci_restore_iov_state(struct pci_dev *dev); int pci_iov_bus_range(struct pci_bus *bus); - +extern const struct attribute_group sriov_dev_attr_group; #else static inline int pci_iov_init(struct pci_dev *dev) { @@ -510,18 +563,21 @@ 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); +#ifdef CONFIG_PCIE_ECRC +void pcie_set_ecrc_checking(struct pci_dev *dev); +void pcie_ecrc_get_policy(char *str); #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) { } +static inline void pcie_set_ecrc_checking(struct pci_dev *dev) { } +static inline void pcie_ecrc_get_policy(char *str) { } #endif #ifdef CONFIG_PCIE_PTM void pci_ptm_init(struct pci_dev *dev); +int pci_enable_ptm(struct pci_dev *dev, u8 *granularity); #else static inline void pci_ptm_init(struct pci_dev *dev) { } +static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity) +{ return -EINVAL; } #endif struct pci_dev_reset_methods { @@ -558,6 +614,10 @@ struct device_node; int of_pci_parse_bus_range(struct device_node *node, struct resource *res); int of_get_pci_domain_nr(struct device_node *node); int of_pci_get_max_link_speed(struct device_node *node); +void pci_set_of_node(struct pci_dev *dev); +void pci_release_of_node(struct pci_dev *dev); +void pci_set_bus_of_node(struct pci_bus *bus); +void pci_release_bus_of_node(struct pci_bus *bus); #else static inline int @@ -577,20 +637,12 @@ of_pci_get_max_link_speed(struct device_node *node) { return -EINVAL; } -#endif /* CONFIG_OF */ -#if defined(CONFIG_OF_ADDRESS) -int devm_of_pci_get_host_bridge_resources(struct device *dev, - unsigned char busno, unsigned char bus_max, - struct list_head *resources, resource_size_t *io_base); -#else -static inline int devm_of_pci_get_host_bridge_resources(struct device *dev, - unsigned char busno, unsigned char bus_max, - struct list_head *resources, resource_size_t *io_base) -{ - return -EINVAL; -} -#endif +static inline void pci_set_of_node(struct pci_dev *dev) { } +static inline void pci_release_of_node(struct pci_dev *dev) { } +static inline void pci_set_bus_of_node(struct pci_bus *bus) { } +static inline void pci_release_bus_of_node(struct pci_bus *bus) { } +#endif /* CONFIG_OF */ #ifdef CONFIG_PCIEAER void pci_no_aer(void); @@ -607,4 +659,17 @@ static inline void pci_aer_clear_fatal_status(struct pci_dev *dev) { } static inline void pci_aer_clear_device_status(struct pci_dev *dev) { } #endif +#ifdef CONFIG_ACPI +int pci_acpi_program_hp_params(struct pci_dev *dev); +#else +static inline int pci_acpi_program_hp_params(struct pci_dev *dev) +{ + return -ENODEV; +} +#endif + +#ifdef CONFIG_PCIEASPM +extern const struct attribute_group aspm_ctrl_attr_group; +#endif + #endif /* DRIVERS_PCI_H */ |
