1 /* Functions internal to the PCI core code */ 2 3 extern int pci_uevent(struct device *dev, struct kobj_uevent_env *env); 4 extern int pci_create_sysfs_dev_files(struct pci_dev *pdev); 5 extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev); 6 extern void pci_cleanup_rom(struct pci_dev *dev); 7 8 /** 9 * Firmware PM callbacks 10 * 11 * @is_manageable - returns 'true' if given device is power manageable by the 12 * platform firmware 13 * 14 * @set_state - invokes the platform firmware to set the device's power state 15 * 16 * @choose_state - returns PCI power state of given device preferred by the 17 * platform; to be used during system-wide transitions from a 18 * sleeping state to the working state and vice versa 19 * 20 * @can_wakeup - returns 'true' if given device is capable of waking up the 21 * system from a sleeping state 22 * 23 * @sleep_wake - enables/disables the system wake up capability of given device 24 * 25 * If given platform is generally capable of power managing PCI devices, all of 26 * these callbacks are mandatory. 27 */ 28 struct pci_platform_pm_ops { 29 bool (*is_manageable)(struct pci_dev *dev); 30 int (*set_state)(struct pci_dev *dev, pci_power_t state); 31 pci_power_t (*choose_state)(struct pci_dev *dev); 32 bool (*can_wakeup)(struct pci_dev *dev); 33 int (*sleep_wake)(struct pci_dev *dev, bool enable); 34 }; 35 36 extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops); 37 extern void pci_pm_init(struct pci_dev *dev); 38 39 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); 40 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); 41 extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val); 42 extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val); 43 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val); 44 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val); 45 46 struct pci_vpd_ops { 47 int (*read)(struct pci_dev *dev, int pos, int size, char *buf); 48 int (*write)(struct pci_dev *dev, int pos, int size, const char *buf); 49 void (*release)(struct pci_dev *dev); 50 }; 51 52 struct pci_vpd { 53 unsigned int len; 54 struct pci_vpd_ops *ops; 55 struct bin_attribute *attr; /* descriptor for sysfs VPD entry */ 56 }; 57 58 extern int pci_vpd_pci22_init(struct pci_dev *dev); 59 static inline void pci_vpd_release(struct pci_dev *dev) 60 { 61 if (dev->vpd) 62 dev->vpd->ops->release(dev); 63 } 64 65 /* PCI /proc functions */ 66 #ifdef CONFIG_PROC_FS 67 extern int pci_proc_attach_device(struct pci_dev *dev); 68 extern int pci_proc_detach_device(struct pci_dev *dev); 69 extern int pci_proc_detach_bus(struct pci_bus *bus); 70 #else 71 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; } 72 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; } 73 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; } 74 #endif 75 76 /* Functions for PCI Hotplug drivers to use */ 77 extern unsigned int pci_do_scan_bus(struct pci_bus *bus); 78 79 extern void pci_remove_legacy_files(struct pci_bus *bus); 80 81 /* Lock for read/write access to pci device and bus lists */ 82 extern struct rw_semaphore pci_bus_sem; 83 84 extern unsigned int pci_pm_d3_delay; 85 86 #ifdef CONFIG_PCI_MSI 87 void pci_no_msi(void); 88 extern void pci_msi_init_pci_dev(struct pci_dev *dev); 89 #else 90 static inline void pci_no_msi(void) { } 91 static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { } 92 #endif 93 94 #ifdef CONFIG_PCIEAER 95 void pci_no_aer(void); 96 #else 97 static inline void pci_no_aer(void) { } 98 #endif 99 100 static inline int pci_no_d1d2(struct pci_dev *dev) 101 { 102 unsigned int parent_dstates = 0; 103 104 if (dev->bus->self) 105 parent_dstates = dev->bus->self->no_d1d2; 106 return (dev->no_d1d2 || parent_dstates); 107 108 } 109 extern int pcie_mch_quirk; 110 extern struct device_attribute pci_dev_attrs[]; 111 extern struct device_attribute dev_attr_cpuaffinity; 112 113 /** 114 * pci_match_one_device - Tell if a PCI device structure has a matching 115 * PCI device id structure 116 * @id: single PCI device id structure to match 117 * @dev: the PCI device structure to match against 118 * 119 * Returns the matching pci_device_id structure or %NULL if there is no match. 120 */ 121 static inline const struct pci_device_id * 122 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev) 123 { 124 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) && 125 (id->device == PCI_ANY_ID || id->device == dev->device) && 126 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) && 127 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) && 128 !((id->class ^ dev->class) & id->class_mask)) 129 return id; 130 return NULL; 131 } 132 133 struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev); 134 135 /* PCI slot sysfs helper code */ 136 #define to_pci_slot(s) container_of(s, struct pci_slot, kobj) 137 138 extern struct kset *pci_slots_kset; 139 140 struct pci_slot_attribute { 141 struct attribute attr; 142 ssize_t (*show)(struct pci_slot *, char *); 143 ssize_t (*store)(struct pci_slot *, const char *, size_t); 144 }; 145 #define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr) 146 147