1 /* Functions internal to the PCI core code */
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
);
9 * Firmware PM callbacks
11 * @is_manageable - returns 'true' if given device is power manageable by the
14 * @set_state - invokes the platform firmware to set the device's power state
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
20 * If given platform is generally capable of power managing PCI devices, all of
21 * these callbacks are mandatory.
23 struct pci_platform_pm_ops
{
24 bool (*is_manageable
)(struct pci_dev
*dev
);
25 int (*set_state
)(struct pci_dev
*dev
, pci_power_t state
);
26 pci_power_t (*choose_state
)(struct pci_dev
*dev
);
29 extern int pci_set_platform_pm(struct pci_platform_pm_ops
*ops
);
31 extern int pci_user_read_config_byte(struct pci_dev
*dev
, int where
, u8
*val
);
32 extern int pci_user_read_config_word(struct pci_dev
*dev
, int where
, u16
*val
);
33 extern int pci_user_read_config_dword(struct pci_dev
*dev
, int where
, u32
*val
);
34 extern int pci_user_write_config_byte(struct pci_dev
*dev
, int where
, u8 val
);
35 extern int pci_user_write_config_word(struct pci_dev
*dev
, int where
, u16 val
);
36 extern int pci_user_write_config_dword(struct pci_dev
*dev
, int where
, u32 val
);
39 int (*read
)(struct pci_dev
*dev
, int pos
, int size
, char *buf
);
40 int (*write
)(struct pci_dev
*dev
, int pos
, int size
, const char *buf
);
41 int (*get_size
)(struct pci_dev
*dev
);
42 void (*release
)(struct pci_dev
*dev
);
46 struct pci_vpd_ops
*ops
;
47 struct bin_attribute
*attr
; /* descriptor for sysfs VPD entry */
50 extern int pci_vpd_pci22_init(struct pci_dev
*dev
);
51 static inline void pci_vpd_release(struct pci_dev
*dev
)
54 dev
->vpd
->ops
->release(dev
);
57 /* PCI /proc functions */
59 extern int pci_proc_attach_device(struct pci_dev
*dev
);
60 extern int pci_proc_detach_device(struct pci_dev
*dev
);
61 extern int pci_proc_detach_bus(struct pci_bus
*bus
);
63 static inline int pci_proc_attach_device(struct pci_dev
*dev
) { return 0; }
64 static inline int pci_proc_detach_device(struct pci_dev
*dev
) { return 0; }
65 static inline int pci_proc_detach_bus(struct pci_bus
*bus
) { return 0; }
68 /* Functions for PCI Hotplug drivers to use */
69 extern unsigned int pci_do_scan_bus(struct pci_bus
*bus
);
71 extern void pci_remove_legacy_files(struct pci_bus
*bus
);
73 /* Lock for read/write access to pci device and bus lists */
74 extern struct rw_semaphore pci_bus_sem
;
76 extern unsigned int pci_pm_d3_delay
;
79 void pci_no_msi(void);
80 extern void pci_msi_init_pci_dev(struct pci_dev
*dev
);
82 static inline void pci_no_msi(void) { }
83 static inline void pci_msi_init_pci_dev(struct pci_dev
*dev
) { }
87 void pci_no_aer(void);
89 static inline void pci_no_aer(void) { }
92 static inline int pci_no_d1d2(struct pci_dev
*dev
)
94 unsigned int parent_dstates
= 0;
97 parent_dstates
= dev
->bus
->self
->no_d1d2
;
98 return (dev
->no_d1d2
|| parent_dstates
);
101 extern int pcie_mch_quirk
;
102 extern struct device_attribute pci_dev_attrs
[];
103 extern struct device_attribute dev_attr_cpuaffinity
;
106 * pci_match_one_device - Tell if a PCI device structure has a matching
107 * PCI device id structure
108 * @id: single PCI device id structure to match
109 * @dev: the PCI device structure to match against
111 * Returns the matching pci_device_id structure or %NULL if there is no match.
113 static inline const struct pci_device_id
*
114 pci_match_one_device(const struct pci_device_id
*id
, const struct pci_dev
*dev
)
116 if ((id
->vendor
== PCI_ANY_ID
|| id
->vendor
== dev
->vendor
) &&
117 (id
->device
== PCI_ANY_ID
|| id
->device
== dev
->device
) &&
118 (id
->subvendor
== PCI_ANY_ID
|| id
->subvendor
== dev
->subsystem_vendor
) &&
119 (id
->subdevice
== PCI_ANY_ID
|| id
->subdevice
== dev
->subsystem_device
) &&
120 !((id
->class ^ dev
->class) & id
->class_mask
))
125 struct pci_dev
*pci_find_upstream_pcie_bridge(struct pci_dev
*pdev
);
127 /* PCI slot sysfs helper code */
128 #define to_pci_slot(s) container_of(s, struct pci_slot, kobj)
130 extern struct kset
*pci_slots_kset
;
132 struct pci_slot_attribute
{
133 struct attribute attr
;
134 ssize_t (*show
)(struct pci_slot
*, char *);
135 ssize_t (*store
)(struct pci_slot
*, const char *, size_t);
137 #define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr)