diff options
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 82 |
1 files changed, 66 insertions, 16 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index b81e99cd4b62..12215ee72afb 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -9,6 +9,8 @@ struct pcie_tlp_log; /* Number of possible devfns: 0.0 to 1f.7 inclusive */ #define MAX_NR_DEVFNS 256 +#define MAX_NR_LANES 16 + #define PCI_FIND_CAP_TTL 48 #define PCI_VSEC_ID_INTEL_TBT 0x1234 /* Thunderbolt */ @@ -148,6 +150,7 @@ void pci_dev_adjust_pme(struct pci_dev *dev); void pci_dev_complete_resume(struct pci_dev *pci_dev); void pci_config_pm_runtime_get(struct pci_dev *dev); void pci_config_pm_runtime_put(struct pci_dev *dev); +void pci_pm_power_up_and_verify_state(struct pci_dev *pci_dev); void pci_pm_init(struct pci_dev *dev); void pci_ea_init(struct pci_dev *dev); void pci_msi_init(struct pci_dev *dev); @@ -227,6 +230,7 @@ static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; } /* Functions for PCI Hotplug drivers to use */ int pci_hp_add_bridge(struct pci_dev *dev); +bool pci_hp_spurious_link_change(struct pci_dev *pdev); #if defined(CONFIG_SYSFS) && defined(HAVE_PCI_LEGACY) void pci_create_legacy_files(struct pci_bus *bus); @@ -557,6 +561,10 @@ static inline int pci_dev_set_disconnected(struct pci_dev *dev, void *unused) #define PCI_DPC_RECOVERED 1 #define PCI_DPC_RECOVERING 2 #define PCI_DEV_REMOVED 3 +#define PCI_LINK_CHANGED 4 +#define PCI_LINK_CHANGING 5 +#define PCI_LINK_LBMS_SEEN 6 +#define PCI_DEV_ALLOW_BINDING 7 static inline void pci_dev_assign_added(struct pci_dev *dev) { @@ -580,6 +588,16 @@ static inline bool pci_dev_test_and_set_removed(struct pci_dev *dev) return test_and_set_bit(PCI_DEV_REMOVED, &dev->priv_flags); } +static inline void pci_dev_allow_binding(struct pci_dev *dev) +{ + set_bit(PCI_DEV_ALLOW_BINDING, &dev->priv_flags); +} + +static inline bool pci_dev_binding_disallowed(struct pci_dev *dev) +{ + return !test_bit(PCI_DEV_ALLOW_BINDING, &dev->priv_flags); +} + #ifdef CONFIG_PCIEAER #include <linux/aer.h> @@ -587,12 +605,15 @@ static inline bool pci_dev_test_and_set_removed(struct pci_dev *dev) struct aer_err_info { struct pci_dev *dev[AER_MAX_MULTI_ERR_DEVICES]; + int ratelimit_print[AER_MAX_MULTI_ERR_DEVICES]; int error_dev_num; + const char *level; /* printk level */ unsigned int id:16; unsigned int severity:2; /* 0:NONFATAL | 1:FATAL | 2:COR */ - unsigned int __pad1:5; + unsigned int root_ratelimit_print:1; /* 0=skip, 1=print */ + unsigned int __pad1:4; unsigned int multi_error_valid:1; unsigned int first_error:5; @@ -604,15 +625,16 @@ struct aer_err_info { struct pcie_tlp_log tlp; /* TLP Header */ }; -int aer_get_device_error_info(struct pci_dev *dev, struct aer_err_info *info); -void aer_print_error(struct pci_dev *dev, struct aer_err_info *info); +int aer_get_device_error_info(struct aer_err_info *info, int i); +void aer_print_error(struct aer_err_info *info, int i); int pcie_read_tlp_log(struct pci_dev *dev, int where, int where2, unsigned int tlp_len, bool flit, struct pcie_tlp_log *log); unsigned int aer_tlp_log_len(struct pci_dev *dev, u32 aercc); void pcie_print_tlp_log(const struct pci_dev *dev, - const struct pcie_tlp_log *log, const char *pfx); + const struct pcie_tlp_log *log, const char *level, + const char *pfx); #endif /* CONFIG_PCIEAER */ #ifdef CONFIG_PCIEPORTBUS @@ -824,14 +846,9 @@ static inline void pcie_ecrc_get_policy(char *str) { } #endif #ifdef CONFIG_PCIEPORTBUS -void pcie_reset_lbms_count(struct pci_dev *port); -int pcie_lbms_count(struct pci_dev *port, unsigned long *val); +void pcie_reset_lbms(struct pci_dev *port); #else -static inline void pcie_reset_lbms_count(struct pci_dev *port) {} -static inline int pcie_lbms_count(struct pci_dev *port, unsigned long *val) -{ - return -EOPNOTSUPP; -} +static inline void pcie_reset_lbms(struct pci_dev *port) {} #endif struct pci_dev_reset_methods { @@ -876,6 +893,21 @@ static inline u64 pci_rebar_size_to_bytes(int size) struct device_node; +#define PCI_EQ_RESV 0xff + +enum equalization_preset_type { + EQ_PRESET_TYPE_8GTS, + EQ_PRESET_TYPE_16GTS, + EQ_PRESET_TYPE_32GTS, + EQ_PRESET_TYPE_64GTS, + EQ_PRESET_TYPE_MAX +}; + +struct pci_eq_presets { + u16 eq_presets_8gts[MAX_NR_LANES]; + u8 eq_presets_Ngts[EQ_PRESET_TYPE_MAX - 1][MAX_NR_LANES]; +}; + #ifdef CONFIG_OF int of_get_pci_domain_nr(struct device_node *node); int of_pci_get_max_link_speed(struct device_node *node); @@ -890,7 +922,9 @@ void pci_release_bus_of_node(struct pci_bus *bus); int devm_of_pci_bridge_init(struct device *dev, struct pci_host_bridge *bridge); bool of_pci_supply_present(struct device_node *np); - +int of_pci_get_equalization_presets(struct device *dev, + struct pci_eq_presets *presets, + int num_lanes); #else static inline int of_get_pci_domain_nr(struct device_node *node) @@ -935,6 +969,17 @@ static inline bool of_pci_supply_present(struct device_node *np) { return false; } + +static inline int of_pci_get_equalization_presets(struct device *dev, + struct pci_eq_presets *presets, + int num_lanes) +{ + presets->eq_presets_8gts[0] = PCI_EQ_RESV; + for (int i = 0; i < EQ_PRESET_TYPE_MAX - 1; i++) + presets->eq_presets_Ngts[i][0] = PCI_EQ_RESV; + + return 0; +} #endif /* CONFIG_OF */ struct of_changeset; @@ -961,6 +1006,7 @@ void pci_no_aer(void); void pci_aer_init(struct pci_dev *dev); void pci_aer_exit(struct pci_dev *dev); extern const struct attribute_group aer_stats_attr_group; +extern const struct attribute_group aer_attr_group; void pci_aer_clear_fatal_status(struct pci_dev *dev); int pci_aer_clear_status(struct pci_dev *dev); int pci_aer_raw_clear_status(struct pci_dev *dev); @@ -1059,10 +1105,14 @@ static inline pci_power_t mid_pci_get_power_state(struct pci_dev *pdev) } #endif -int pcim_intx(struct pci_dev *dev, int enable); -int pcim_request_region_exclusive(struct pci_dev *pdev, int bar, - const char *name); -void pcim_release_region(struct pci_dev *pdev, int bar); +#ifdef CONFIG_PCI_MSI +int pci_msix_write_tph_tag(struct pci_dev *pdev, unsigned int index, u16 tag); +#else +static inline int pci_msix_write_tph_tag(struct pci_dev *pdev, unsigned int index, u16 tag) +{ + return -ENODEV; +} +#endif /* * Config Address for PCI Configuration Mechanism #1 |