diff options
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 124 |
1 files changed, 87 insertions, 37 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 5faa8310eec..15472d691ee 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -13,32 +13,9 @@ * PCI to PCI Bridge Specification * PCI System Design Guide */ - #ifndef LINUX_PCI_H #define LINUX_PCI_H -#include <linux/pci_regs.h> /* The pci register defines */ - -/* - * The PCI interface treats multi-function devices as independent - * devices. The slot/function address of each device is encoded - * in a single byte as follows: - * - * 7:3 = slot - * 2:0 = function - */ -#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) -#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f) -#define PCI_FUNC(devfn) ((devfn) & 0x07) - -/* Ioctls for /proc/bus/pci/X/Y nodes. */ -#define PCIIOC_BASE ('P' << 24 | 'C' << 16 | 'I' << 8) -#define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00) /* Get controller for PCI device. */ -#define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01) /* Set mmap state to I/O space. */ -#define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02) /* Set mmap state to MEM space. */ -#define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03) /* Enable/disable write-combining. */ - -#ifdef __KERNEL__ #include <linux/mod_devicetable.h> @@ -53,6 +30,7 @@ #include <linux/device.h> #include <linux/io.h> #include <linux/irqreturn.h> +#include <uapi/linux/pci.h> /* Include the ID list */ #include <linux/pci_ids.h> @@ -254,10 +232,10 @@ struct pci_dev { u8 revision; /* PCI revision, low byte of class word */ u8 hdr_type; /* PCI header type (`multi' flag masked out) */ u8 pcie_cap; /* PCI-E capability offset */ - u8 pcie_type:4; /* PCI-E device/port type */ u8 pcie_mpss:3; /* PCI-E Max Payload Size Supported */ u8 rom_base_reg; /* which config register controls the ROM */ u8 pin; /* which interrupt pin this device uses */ + u16 pcie_flags_reg; /* cached PCI-E Capabilities Register */ struct pci_driver *driver; /* which driver has allocated this device */ u64 dma_mask; /* Mask of the bits of bus address this @@ -355,6 +333,8 @@ struct pci_dev { }; struct pci_ats *ats; /* Address Translation Service */ #endif + phys_addr_t rom; /* Physical address of ROM if it's not from the BAR */ + size_t romlen; /* Length of ROM if it's not from the BAR */ }; static inline struct pci_dev *pci_physfn(struct pci_dev *dev) @@ -369,7 +349,6 @@ static inline struct pci_dev *pci_physfn(struct pci_dev *dev) extern struct pci_dev *alloc_pci_dev(void); -#define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list) #define to_pci_dev(n) container_of(n, struct pci_dev, dev) #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL) @@ -561,6 +540,9 @@ enum pci_ers_result { /* Device driver is fully recovered and operational */ PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5, + + /* No AER capabilities registered for the driver */ + PCI_ERS_RESULT_NO_AER_DRIVER = (__force pci_ers_result_t) 6, }; /* PCI bus error event callbacks */ @@ -596,7 +578,8 @@ struct pci_driver { int (*resume_early) (struct pci_dev *dev); int (*resume) (struct pci_dev *dev); /* Device woken up */ void (*shutdown) (struct pci_dev *dev); - struct pci_error_handlers *err_handler; + int (*sriov_configure) (struct pci_dev *dev, int num_vfs); /* PF pdev */ + const struct pci_error_handlers *err_handler; struct device_driver driver; struct pci_dynids dynids; }; @@ -611,7 +594,7 @@ struct pci_driver { * in a generic manner. */ #define DEFINE_PCI_DEVICE_TABLE(_table) \ - const struct pci_device_id _table[] __devinitconst + const struct pci_device_id _table[] /** * PCI_DEVICE - macro used to describe a specific pci device @@ -627,6 +610,20 @@ struct pci_driver { .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID /** + * PCI_DEVICE_SUB - macro used to describe a specific pci device with subsystem + * @vend: the 16 bit PCI Vendor ID + * @dev: the 16 bit PCI Device ID + * @subvend: the 16 bit PCI Subvendor ID + * @subdev: the 16 bit PCI Subdevice ID + * + * This macro is used to create a struct pci_device_id that matches a + * specific device with subsystem information. + */ +#define PCI_DEVICE_SUB(vend, dev, subvend, subdev) \ + .vendor = (vend), .device = (dev), \ + .subvendor = (subvend), .subdevice = (subdev) + +/** * PCI_DEVICE_CLASS - macro used to describe a specific pci device class * @dev_class: the class, subclass, prog-if triple for this device * @dev_class_mask: the class mask for this device @@ -709,7 +706,7 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int busmax); int pci_bus_update_busn_res_end(struct pci_bus *b, int busmax); void pci_bus_release_busn_res(struct pci_bus *b); -struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, +struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata, struct list_head *resources); struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, @@ -734,9 +731,9 @@ u8 pci_common_swizzle(struct pci_dev *dev, u8 *pinp); extern struct pci_dev *pci_dev_get(struct pci_dev *dev); extern void pci_dev_put(struct pci_dev *dev); extern void pci_remove_bus(struct pci_bus *b); -extern void __pci_remove_bus_device(struct pci_dev *dev); extern void pci_stop_and_remove_bus_device(struct pci_dev *dev); -extern void pci_stop_bus_device(struct pci_dev *dev); +void pci_stop_root_bus(struct pci_bus *bus); +void pci_remove_root_bus(struct pci_bus *bus); void pci_setup_cardbus(struct pci_bus *bus); extern void pci_sort_breadthfirst(void); #define dev_is_pci(d) ((d)->bus == &pci_bus_type) @@ -755,6 +752,7 @@ enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev *dev); int pci_find_capability(struct pci_dev *dev, int cap); int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap); int pci_find_ext_capability(struct pci_dev *dev, int cap); +int pci_find_next_ext_capability(struct pci_dev *dev, int pos, int cap); int pci_find_ht_capability(struct pci_dev *dev, int ht_cap); int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap); struct pci_bus *pci_find_next_bus(const struct pci_bus *from); @@ -816,6 +814,39 @@ static inline int pci_write_config_dword(const struct pci_dev *dev, int where, return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val); } +int pcie_capability_read_word(struct pci_dev *dev, int pos, u16 *val); +int pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *val); +int pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val); +int pcie_capability_write_dword(struct pci_dev *dev, int pos, u32 val); +int pcie_capability_clear_and_set_word(struct pci_dev *dev, int pos, + u16 clear, u16 set); +int pcie_capability_clear_and_set_dword(struct pci_dev *dev, int pos, + u32 clear, u32 set); + +static inline int pcie_capability_set_word(struct pci_dev *dev, int pos, + u16 set) +{ + return pcie_capability_clear_and_set_word(dev, pos, 0, set); +} + +static inline int pcie_capability_set_dword(struct pci_dev *dev, int pos, + u32 set) +{ + return pcie_capability_clear_and_set_dword(dev, pos, 0, set); +} + +static inline int pcie_capability_clear_word(struct pci_dev *dev, int pos, + u16 clear) +{ + return pcie_capability_clear_and_set_word(dev, pos, clear, 0); +} + +static inline int pcie_capability_clear_dword(struct pci_dev *dev, int pos, + u32 clear) +{ + return pcie_capability_clear_and_set_dword(dev, pos, clear, 0); +} + /* user-space driven config access */ int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); @@ -932,10 +963,8 @@ void set_pcie_hotplug_bridge(struct pci_dev *pdev); /* Functions for PCI Hotplug drivers to use */ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap); -#ifdef CONFIG_HOTPLUG unsigned int pci_rescan_bus_bridge_resize(struct pci_dev *bridge); unsigned int pci_rescan_bus(struct pci_bus *bus); -#endif /* Vital product data routines */ ssize_t pci_read_vpd(struct pci_dev *dev, loff_t pos, size_t count, void *buf); @@ -949,6 +978,7 @@ void pci_bus_size_bridges(struct pci_bus *bus); int pci_claim_resource(struct pci_dev *, int); void pci_assign_unassigned_resources(void); void pci_assign_unassigned_bridge_resources(struct pci_dev *bridge); +void pci_assign_unassigned_bus_resources(struct pci_bus *bus); void pdev_enable_device(struct pci_dev *); int pci_enable_resources(struct pci_dev *, int mask); void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *), @@ -1013,7 +1043,6 @@ void pci_unregister_driver(struct pci_driver *dev); module_driver(__pci_driver, pci_register_driver, \ pci_unregister_driver) -void pci_stop_and_remove_behind_bridge(struct pci_dev *dev); struct pci_driver *pci_dev_driver(const struct pci_dev *dev); int pci_add_dynid(struct pci_driver *drv, unsigned int vendor, unsigned int device, @@ -1031,6 +1060,8 @@ int pci_cfg_space_size_ext(struct pci_dev *dev); int pci_cfg_space_size(struct pci_dev *dev); unsigned char pci_bus_max_busnr(struct pci_bus *bus); void pci_setup_bridge(struct pci_bus *bus); +resource_size_t pcibios_window_alignment(struct pci_bus *bus, + unsigned long type); #define PCI_VGA_STATE_CHANGE_BRIDGE (1 << 0) #define PCI_VGA_STATE_CHANGE_DECODES (1 << 1) @@ -1472,7 +1503,7 @@ enum pci_fixup_pass { /* Anonymous variables would be nice... */ #define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, class, \ class_shift, hook) \ - static const struct pci_fixup const __pci_fixup_##name __used \ + static const struct pci_fixup __pci_fixup_##name __used \ __attribute__((__section__(#section), aligned((sizeof(void *))))) \ = { vendor, device, class, class_shift, hook }; @@ -1570,7 +1601,7 @@ extern int pci_pci_problems; extern unsigned long pci_cardbus_io_size; extern unsigned long pci_cardbus_mem_size; -extern u8 __devinitdata pci_dfl_cache_line_size; +extern u8 pci_dfl_cache_line_size; extern u8 pci_cache_line_size; extern unsigned long pci_hotplug_io_size; @@ -1582,6 +1613,7 @@ void pcibios_disable_device(struct pci_dev *dev); void pcibios_set_master(struct pci_dev *dev); int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state); +int pcibios_add_device(struct pci_dev *dev); #ifdef CONFIG_PCI_MMCONFIG extern void __init pci_mmcfg_early_init(void); @@ -1591,7 +1623,7 @@ static inline void pci_mmcfg_early_init(void) { } static inline void pci_mmcfg_late_init(void) { } #endif -int pci_ext_cfg_avail(struct pci_dev *dev); +int pci_ext_cfg_avail(void); void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar); @@ -1600,6 +1632,8 @@ extern int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn); extern void pci_disable_sriov(struct pci_dev *dev); extern irqreturn_t pci_sriov_migration(struct pci_dev *dev); extern int pci_num_vf(struct pci_dev *dev); +extern int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs); +extern int pci_sriov_get_totalvfs(struct pci_dev *dev); #else static inline int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn) { @@ -1616,6 +1650,14 @@ static inline int pci_num_vf(struct pci_dev *dev) { return 0; } +static inline int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs) +{ + return 0; +} +static inline int pci_sriov_get_totalvfs(struct pci_dev *dev) +{ + return 0; +} #endif #if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE) @@ -1650,6 +1692,15 @@ static inline bool pci_is_pcie(struct pci_dev *dev) return !!pci_pcie_cap(dev); } +/** + * pci_pcie_type - get the PCIe device/port type + * @dev: PCI device + */ +static inline int pci_pcie_type(const struct pci_dev *dev) +{ + return (dev->pcie_flags_reg & PCI_EXP_FLAGS_TYPE) >> 4; +} + void pci_request_acs(void); bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags); bool pci_acs_path_enabled(struct pci_dev *start, @@ -1790,5 +1841,4 @@ static inline struct eeh_dev *pci_dev_to_eeh_dev(struct pci_dev *pdev) */ struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev); -#endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ |