1 /* SPDX-License-Identifier: GPL-2.0 */
7 /* Number of possible devfns: 0.0 to 1f.7 inclusive */
8 #define MAX_NR_DEVFNS 256
10 #define PCI_FIND_CAP_TTL 48
12 #define PCI_VSEC_ID_INTEL_TBT 0x1234 /* Thunderbolt */
14 extern const unsigned char pcie_link_speed[];
15 extern bool pci_early_dump;
17 bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
18 bool pcie_cap_has_rtctl(const struct pci_dev *dev);
20 /* Functions internal to the PCI core code */
22 int pci_create_sysfs_dev_files(struct pci_dev *pdev);
23 void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
24 void pci_cleanup_rom(struct pci_dev *dev);
26 extern const struct attribute_group pci_dev_smbios_attr_group;
30 PCI_MMAP_SYSFS, /* mmap on /sys/bus/pci/devices/<BDF>/resource<N> */
31 PCI_MMAP_PROCFS /* mmap on /proc/bus/pci/<BDF> */
33 int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vmai,
34 enum pci_mmap_api mmap_api);
36 bool pci_reset_supported(struct pci_dev *dev);
37 void pci_init_reset_methods(struct pci_dev *dev);
38 int pci_bridge_secondary_bus_reset(struct pci_dev *dev);
39 int pci_bus_error_reset(struct pci_dev *dev);
41 #define PCI_PM_D2_DELAY 200 /* usec; see PCIe r4.0, sec 5.9.1 */
42 #define PCI_PM_D3HOT_WAIT 10 /* msec */
43 #define PCI_PM_D3COLD_WAIT 100 /* msec */
46 * struct pci_platform_pm_ops - Firmware PM callbacks
48 * @bridge_d3: Does the bridge allow entering into D3
50 * @is_manageable: returns 'true' if given device is power manageable by the
53 * @set_state: invokes the platform firmware to set the device's power state
55 * @get_state: queries the platform firmware for a device's current power state
57 * @refresh_state: asks the platform to refresh the device's power state data
59 * @choose_state: returns PCI power state of given device preferred by the
60 * platform; to be used during system-wide transitions from a
61 * sleeping state to the working state and vice versa
63 * @set_wakeup: enables/disables wakeup capability for the device
65 * @need_resume: returns 'true' if the given device (which is currently
66 * suspended) needs to be resumed to be configured for system
69 * If given platform is generally capable of power managing PCI devices, all of
70 * these callbacks are mandatory.
72 struct pci_platform_pm_ops {
73 bool (*bridge_d3)(struct pci_dev *dev);
74 bool (*is_manageable)(struct pci_dev *dev);
75 int (*set_state)(struct pci_dev *dev, pci_power_t state);
76 pci_power_t (*get_state)(struct pci_dev *dev);
77 void (*refresh_state)(struct pci_dev *dev);
78 pci_power_t (*choose_state)(struct pci_dev *dev);
79 int (*set_wakeup)(struct pci_dev *dev, bool enable);
80 bool (*need_resume)(struct pci_dev *dev);
83 int pci_set_platform_pm(const struct pci_platform_pm_ops *ops);
84 void pci_update_current_state(struct pci_dev *dev, pci_power_t state);
85 void pci_refresh_power_state(struct pci_dev *dev);
86 int pci_power_up(struct pci_dev *dev);
87 void pci_disable_enabled_device(struct pci_dev *dev);
88 int pci_finish_runtime_suspend(struct pci_dev *dev);
89 void pcie_clear_device_status(struct pci_dev *dev);
90 void pcie_clear_root_pme_status(struct pci_dev *dev);
91 bool pci_check_pme_status(struct pci_dev *dev);
92 void pci_pme_wakeup_bus(struct pci_bus *bus);
93 int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
94 void pci_pme_restore(struct pci_dev *dev);
95 bool pci_dev_need_resume(struct pci_dev *dev);
96 void pci_dev_adjust_pme(struct pci_dev *dev);
97 void pci_dev_complete_resume(struct pci_dev *pci_dev);
98 void pci_config_pm_runtime_get(struct pci_dev *dev);
99 void pci_config_pm_runtime_put(struct pci_dev *dev);
100 void pci_pm_init(struct pci_dev *dev);
101 void pci_ea_init(struct pci_dev *dev);
102 void pci_msi_init(struct pci_dev *dev);
103 void pci_msix_init(struct pci_dev *dev);
104 void pci_allocate_cap_save_buffers(struct pci_dev *dev);
105 void pci_free_cap_save_buffers(struct pci_dev *dev);
106 bool pci_bridge_d3_possible(struct pci_dev *dev);
107 void pci_bridge_d3_update(struct pci_dev *dev);
108 void pci_bridge_wait_for_secondary_bus(struct pci_dev *dev);
110 static inline void pci_wakeup_event(struct pci_dev *dev)
112 /* Wait 100 ms before the system can be put into a sleep state. */
113 pm_wakeup_event(&dev->dev, 100);
116 static inline bool pci_has_subordinate(struct pci_dev *pci_dev)
118 return !!(pci_dev->subordinate);
121 static inline bool pci_power_manageable(struct pci_dev *pci_dev)
124 * Currently we allow normal PCI devices and PCI bridges transition
125 * into D3 if their bridge_d3 is set.
127 return !pci_has_subordinate(pci_dev) || pci_dev->bridge_d3;
130 static inline bool pcie_downstream_port(const struct pci_dev *dev)
132 int type = pci_pcie_type(dev);
134 return type == PCI_EXP_TYPE_ROOT_PORT ||
135 type == PCI_EXP_TYPE_DOWNSTREAM ||
136 type == PCI_EXP_TYPE_PCIE_BRIDGE;
139 void pci_vpd_init(struct pci_dev *dev);
140 void pci_vpd_release(struct pci_dev *dev);
141 extern const struct attribute_group pci_dev_vpd_attr_group;
143 /* PCI Virtual Channel */
144 int pci_save_vc_state(struct pci_dev *dev);
145 void pci_restore_vc_state(struct pci_dev *dev);
146 void pci_allocate_vc_save_buffers(struct pci_dev *dev);
148 /* PCI /proc functions */
149 #ifdef CONFIG_PROC_FS
150 int pci_proc_attach_device(struct pci_dev *dev);
151 int pci_proc_detach_device(struct pci_dev *dev);
152 int pci_proc_detach_bus(struct pci_bus *bus);
154 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
155 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
156 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
159 /* Functions for PCI Hotplug drivers to use */
160 int pci_hp_add_bridge(struct pci_dev *dev);
162 #ifdef HAVE_PCI_LEGACY
163 void pci_create_legacy_files(struct pci_bus *bus);
164 void pci_remove_legacy_files(struct pci_bus *bus);
166 static inline void pci_create_legacy_files(struct pci_bus *bus) { return; }
167 static inline void pci_remove_legacy_files(struct pci_bus *bus) { return; }
170 /* Lock for read/write access to pci device and bus lists */
171 extern struct rw_semaphore pci_bus_sem;
172 extern struct mutex pci_slot_mutex;
174 extern raw_spinlock_t pci_lock;
176 extern unsigned int pci_pm_d3hot_delay;
178 #ifdef CONFIG_PCI_MSI
179 void pci_no_msi(void);
181 static inline void pci_no_msi(void) { }
184 void pci_realloc_get_opt(char *);
186 static inline int pci_no_d1d2(struct pci_dev *dev)
188 unsigned int parent_dstates = 0;
191 parent_dstates = dev->bus->self->no_d1d2;
192 return (dev->no_d1d2 || parent_dstates);
195 extern const struct attribute_group *pci_dev_groups[];
196 extern const struct attribute_group *pcibus_groups[];
197 extern const struct device_type pci_dev_type;
198 extern const struct attribute_group *pci_bus_groups[];
200 extern unsigned long pci_hotplug_io_size;
201 extern unsigned long pci_hotplug_mmio_size;
202 extern unsigned long pci_hotplug_mmio_pref_size;
203 extern unsigned long pci_hotplug_bus_size;
206 * pci_match_one_device - Tell if a PCI device structure has a matching
207 * PCI device id structure
208 * @id: single PCI device id structure to match
209 * @dev: the PCI device structure to match against
211 * Returns the matching pci_device_id structure or %NULL if there is no match.
213 static inline const struct pci_device_id *
214 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
216 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
217 (id->device == PCI_ANY_ID || id->device == dev->device) &&
218 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
219 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
220 !((id->class ^ dev->class) & id->class_mask))
225 /* PCI slot sysfs helper code */
226 #define to_pci_slot(s) container_of(s, struct pci_slot, kobj)
228 extern struct kset *pci_slots_kset;
230 struct pci_slot_attribute {
231 struct attribute attr;
232 ssize_t (*show)(struct pci_slot *, char *);
233 ssize_t (*store)(struct pci_slot *, const char *, size_t);
235 #define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr)
238 pci_bar_unknown, /* Standard PCI BAR probe */
239 pci_bar_io, /* An I/O port BAR */
240 pci_bar_mem32, /* A 32-bit memory BAR */
241 pci_bar_mem64, /* A 64-bit memory BAR */
244 struct device *pci_get_host_bridge_device(struct pci_dev *dev);
245 void pci_put_host_bridge_device(struct device *dev);
247 int pci_configure_extended_tags(struct pci_dev *dev, void *ign);
248 bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
250 bool pci_bus_generic_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
252 int pci_idt_bus_quirk(struct pci_bus *bus, int devfn, u32 *pl, int crs_timeout);
254 int pci_setup_device(struct pci_dev *dev);
255 int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
256 struct resource *res, unsigned int reg);
257 void pci_configure_ari(struct pci_dev *dev);
258 void __pci_bus_size_bridges(struct pci_bus *bus,
259 struct list_head *realloc_head);
260 void __pci_bus_assign_resources(const struct pci_bus *bus,
261 struct list_head *realloc_head,
262 struct list_head *fail_head);
263 bool pci_bus_clip_resource(struct pci_dev *dev, int idx);
265 void pci_reassigndev_resource_alignment(struct pci_dev *dev);
266 void pci_disable_bridge_window(struct pci_dev *dev);
267 struct pci_bus *pci_bus_get(struct pci_bus *bus);
268 void pci_bus_put(struct pci_bus *bus);
270 /* PCIe link information from Link Capabilities 2 */
271 #define PCIE_LNKCAP2_SLS2SPEED(lnkcap2) \
272 ((lnkcap2) & PCI_EXP_LNKCAP2_SLS_64_0GB ? PCIE_SPEED_64_0GT : \
273 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_32_0GB ? PCIE_SPEED_32_0GT : \
274 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_16_0GB ? PCIE_SPEED_16_0GT : \
275 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_8_0GB ? PCIE_SPEED_8_0GT : \
276 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_5_0GB ? PCIE_SPEED_5_0GT : \
277 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_2_5GB ? PCIE_SPEED_2_5GT : \
280 /* PCIe speed to Mb/s reduced by encoding overhead */
281 #define PCIE_SPEED2MBS_ENC(speed) \
282 ((speed) == PCIE_SPEED_64_0GT ? 64000*128/130 : \
283 (speed) == PCIE_SPEED_32_0GT ? 32000*128/130 : \
284 (speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \
285 (speed) == PCIE_SPEED_8_0GT ? 8000*128/130 : \
286 (speed) == PCIE_SPEED_5_0GT ? 5000*8/10 : \
287 (speed) == PCIE_SPEED_2_5GT ? 2500*8/10 : \
290 const char *pci_speed_string(enum pci_bus_speed speed);
291 enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev);
292 enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev);
293 u32 pcie_bandwidth_capable(struct pci_dev *dev, enum pci_bus_speed *speed,
294 enum pcie_link_width *width);
295 void __pcie_print_link_status(struct pci_dev *dev, bool verbose);
296 void pcie_report_downtraining(struct pci_dev *dev);
297 void pcie_update_link_speed(struct pci_bus *bus, u16 link_status);
299 /* Single Root I/O Virtualization */
301 int pos; /* Capability position */
302 int nres; /* Number of resources */
303 u32 cap; /* SR-IOV Capabilities */
304 u16 ctrl; /* SR-IOV Control */
305 u16 total_VFs; /* Total VFs associated with the PF */
306 u16 initial_VFs; /* Initial VFs associated with the PF */
307 u16 num_VFs; /* Number of VFs available */
308 u16 offset; /* First VF Routing ID offset */
309 u16 stride; /* Following VF stride */
310 u16 vf_device; /* VF device ID */
311 u32 pgsz; /* Page size for BAR alignment */
312 u8 link; /* Function Dependency Link */
313 u8 max_VF_buses; /* Max buses consumed by VFs */
314 u16 driver_max_VFs; /* Max num VFs driver supports */
315 struct pci_dev *dev; /* Lowest numbered PF */
316 struct pci_dev *self; /* This PF */
317 u32 class; /* VF device */
318 u8 hdr_type; /* VF header type */
319 u16 subsystem_vendor; /* VF subsystem vendor */
320 u16 subsystem_device; /* VF subsystem device */
321 resource_size_t barsz[PCI_SRIOV_NUM_BARS]; /* VF BAR size */
322 bool drivers_autoprobe; /* Auto probing of VFs by driver */
326 * pci_dev_set_io_state - Set the new error state if possible.
328 * @dev: PCI device to set new error_state
329 * @new: the state we want dev to be in
331 * Must be called with device_lock held.
333 * Returns true if state has been changed to the requested state.
335 static inline bool pci_dev_set_io_state(struct pci_dev *dev,
336 pci_channel_state_t new)
338 bool changed = false;
340 device_lock_assert(&dev->dev);
342 case pci_channel_io_perm_failure:
343 switch (dev->error_state) {
344 case pci_channel_io_frozen:
345 case pci_channel_io_normal:
346 case pci_channel_io_perm_failure:
351 case pci_channel_io_frozen:
352 switch (dev->error_state) {
353 case pci_channel_io_frozen:
354 case pci_channel_io_normal:
359 case pci_channel_io_normal:
360 switch (dev->error_state) {
361 case pci_channel_io_frozen:
362 case pci_channel_io_normal:
369 dev->error_state = new;
373 static inline int pci_dev_set_disconnected(struct pci_dev *dev, void *unused)
375 device_lock(&dev->dev);
376 pci_dev_set_io_state(dev, pci_channel_io_perm_failure);
377 device_unlock(&dev->dev);
382 static inline bool pci_dev_is_disconnected(const struct pci_dev *dev)
384 return dev->error_state == pci_channel_io_perm_failure;
387 /* pci_dev priv_flags */
388 #define PCI_DEV_ADDED 0
389 #define PCI_DPC_RECOVERED 1
390 #define PCI_DPC_RECOVERING 2
392 static inline void pci_dev_assign_added(struct pci_dev *dev, bool added)
394 assign_bit(PCI_DEV_ADDED, &dev->priv_flags, added);
397 static inline bool pci_dev_is_added(const struct pci_dev *dev)
399 return test_bit(PCI_DEV_ADDED, &dev->priv_flags);
402 #ifdef CONFIG_PCIEAER
403 #include <linux/aer.h>
405 #define AER_MAX_MULTI_ERR_DEVICES 5 /* Not likely to have more */
407 struct aer_err_info {
408 struct pci_dev *dev[AER_MAX_MULTI_ERR_DEVICES];
413 unsigned int severity:2; /* 0:NONFATAL | 1:FATAL | 2:COR */
414 unsigned int __pad1:5;
415 unsigned int multi_error_valid:1;
417 unsigned int first_error:5;
418 unsigned int __pad2:2;
419 unsigned int tlp_header_valid:1;
421 unsigned int status; /* COR/UNCOR Error Status */
422 unsigned int mask; /* COR/UNCOR Error Mask */
423 struct aer_header_log_regs tlp; /* TLP Header */
426 int aer_get_device_error_info(struct pci_dev *dev, struct aer_err_info *info);
427 void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);
428 #endif /* CONFIG_PCIEAER */
430 #ifdef CONFIG_PCIEPORTBUS
431 /* Cached RCEC Endpoint Association */
439 #ifdef CONFIG_PCIE_DPC
440 void pci_save_dpc_state(struct pci_dev *dev);
441 void pci_restore_dpc_state(struct pci_dev *dev);
442 void pci_dpc_init(struct pci_dev *pdev);
443 void dpc_process_error(struct pci_dev *pdev);
444 pci_ers_result_t dpc_reset_link(struct pci_dev *pdev);
445 bool pci_dpc_recovered(struct pci_dev *pdev);
447 static inline void pci_save_dpc_state(struct pci_dev *dev) {}
448 static inline void pci_restore_dpc_state(struct pci_dev *dev) {}
449 static inline void pci_dpc_init(struct pci_dev *pdev) {}
450 static inline bool pci_dpc_recovered(struct pci_dev *pdev) { return false; }
453 #ifdef CONFIG_PCIEPORTBUS
454 void pci_rcec_init(struct pci_dev *dev);
455 void pci_rcec_exit(struct pci_dev *dev);
456 void pcie_link_rcec(struct pci_dev *rcec);
457 void pcie_walk_rcec(struct pci_dev *rcec,
458 int (*cb)(struct pci_dev *, void *),
461 static inline void pci_rcec_init(struct pci_dev *dev) {}
462 static inline void pci_rcec_exit(struct pci_dev *dev) {}
463 static inline void pcie_link_rcec(struct pci_dev *rcec) {}
464 static inline void pcie_walk_rcec(struct pci_dev *rcec,
465 int (*cb)(struct pci_dev *, void *),
469 #ifdef CONFIG_PCI_ATS
470 /* Address Translation Service */
471 void pci_ats_init(struct pci_dev *dev);
472 void pci_restore_ats_state(struct pci_dev *dev);
474 static inline void pci_ats_init(struct pci_dev *d) { }
475 static inline void pci_restore_ats_state(struct pci_dev *dev) { }
476 #endif /* CONFIG_PCI_ATS */
478 #ifdef CONFIG_PCI_PRI
479 void pci_pri_init(struct pci_dev *dev);
480 void pci_restore_pri_state(struct pci_dev *pdev);
482 static inline void pci_pri_init(struct pci_dev *dev) { }
483 static inline void pci_restore_pri_state(struct pci_dev *pdev) { }
486 #ifdef CONFIG_PCI_PASID
487 void pci_pasid_init(struct pci_dev *dev);
488 void pci_restore_pasid_state(struct pci_dev *pdev);
490 static inline void pci_pasid_init(struct pci_dev *dev) { }
491 static inline void pci_restore_pasid_state(struct pci_dev *pdev) { }
494 #ifdef CONFIG_PCI_IOV
495 int pci_iov_init(struct pci_dev *dev);
496 void pci_iov_release(struct pci_dev *dev);
497 void pci_iov_remove(struct pci_dev *dev);
498 void pci_iov_update_resource(struct pci_dev *dev, int resno);
499 resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
500 void pci_restore_iov_state(struct pci_dev *dev);
501 int pci_iov_bus_range(struct pci_bus *bus);
502 extern const struct attribute_group sriov_pf_dev_attr_group;
503 extern const struct attribute_group sriov_vf_dev_attr_group;
505 static inline int pci_iov_init(struct pci_dev *dev)
509 static inline void pci_iov_release(struct pci_dev *dev)
513 static inline void pci_iov_remove(struct pci_dev *dev)
516 static inline void pci_restore_iov_state(struct pci_dev *dev)
519 static inline int pci_iov_bus_range(struct pci_bus *bus)
524 #endif /* CONFIG_PCI_IOV */
526 #ifdef CONFIG_PCIE_PTM
527 void pci_save_ptm_state(struct pci_dev *dev);
528 void pci_restore_ptm_state(struct pci_dev *dev);
529 void pci_disable_ptm(struct pci_dev *dev);
531 static inline void pci_save_ptm_state(struct pci_dev *dev) { }
532 static inline void pci_restore_ptm_state(struct pci_dev *dev) { }
533 static inline void pci_disable_ptm(struct pci_dev *dev) { }
536 unsigned long pci_cardbus_resource_alignment(struct resource *);
538 static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
539 struct resource *res)
541 #ifdef CONFIG_PCI_IOV
542 int resno = res - dev->resource;
544 if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END)
545 return pci_sriov_resource_alignment(dev, resno);
547 if (dev->class >> 8 == PCI_CLASS_BRIDGE_CARDBUS)
548 return pci_cardbus_resource_alignment(res);
549 return resource_alignment(res);
552 void pci_acs_init(struct pci_dev *dev);
553 #ifdef CONFIG_PCI_QUIRKS
554 int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags);
555 int pci_dev_specific_enable_acs(struct pci_dev *dev);
556 int pci_dev_specific_disable_acs_redir(struct pci_dev *dev);
558 static inline int pci_dev_specific_acs_enabled(struct pci_dev *dev,
563 static inline int pci_dev_specific_enable_acs(struct pci_dev *dev)
567 static inline int pci_dev_specific_disable_acs_redir(struct pci_dev *dev)
573 /* PCI error reporting and recovery */
574 pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
575 pci_channel_state_t state,
576 pci_ers_result_t (*reset_subordinates)(struct pci_dev *pdev));
578 bool pcie_wait_for_link(struct pci_dev *pdev, bool active);
579 #ifdef CONFIG_PCIEASPM
580 void pcie_aspm_init_link_state(struct pci_dev *pdev);
581 void pcie_aspm_exit_link_state(struct pci_dev *pdev);
582 void pcie_aspm_pm_state_change(struct pci_dev *pdev);
583 void pcie_aspm_powersave_config_link(struct pci_dev *pdev);
585 static inline void pcie_aspm_init_link_state(struct pci_dev *pdev) { }
586 static inline void pcie_aspm_exit_link_state(struct pci_dev *pdev) { }
587 static inline void pcie_aspm_pm_state_change(struct pci_dev *pdev) { }
588 static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev) { }
591 #ifdef CONFIG_PCIE_ECRC
592 void pcie_set_ecrc_checking(struct pci_dev *dev);
593 void pcie_ecrc_get_policy(char *str);
595 static inline void pcie_set_ecrc_checking(struct pci_dev *dev) { }
596 static inline void pcie_ecrc_get_policy(char *str) { }
599 #ifdef CONFIG_PCIE_PTM
600 void pci_ptm_init(struct pci_dev *dev);
601 int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);
603 static inline void pci_ptm_init(struct pci_dev *dev) { }
604 static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
608 struct pci_dev_reset_methods {
611 int (*reset)(struct pci_dev *dev, bool probe);
614 struct pci_reset_fn_method {
615 int (*reset_fn)(struct pci_dev *pdev, bool probe);
619 #ifdef CONFIG_PCI_QUIRKS
620 int pci_dev_specific_reset(struct pci_dev *dev, bool probe);
622 static inline int pci_dev_specific_reset(struct pci_dev *dev, bool probe)
628 #if defined(CONFIG_PCI_QUIRKS) && defined(CONFIG_ARM64)
629 int acpi_get_rc_resources(struct device *dev, const char *hid, u16 segment,
630 struct resource *res);
632 static inline int acpi_get_rc_resources(struct device *dev, const char *hid,
633 u16 segment, struct resource *res)
639 int pci_rebar_get_current_size(struct pci_dev *pdev, int bar);
640 int pci_rebar_set_size(struct pci_dev *pdev, int bar, int size);
641 static inline u64 pci_rebar_size_to_bytes(int size)
643 return 1ULL << (size + 20);
649 int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
650 int of_get_pci_domain_nr(struct device_node *node);
651 int of_pci_get_max_link_speed(struct device_node *node);
652 void pci_set_of_node(struct pci_dev *dev);
653 void pci_release_of_node(struct pci_dev *dev);
654 void pci_set_bus_of_node(struct pci_bus *bus);
655 void pci_release_bus_of_node(struct pci_bus *bus);
657 int devm_of_pci_bridge_init(struct device *dev, struct pci_host_bridge *bridge);
661 of_pci_parse_bus_range(struct device_node *node, struct resource *res)
667 of_get_pci_domain_nr(struct device_node *node)
673 of_pci_get_max_link_speed(struct device_node *node)
678 static inline void pci_set_of_node(struct pci_dev *dev) { }
679 static inline void pci_release_of_node(struct pci_dev *dev) { }
680 static inline void pci_set_bus_of_node(struct pci_bus *bus) { }
681 static inline void pci_release_bus_of_node(struct pci_bus *bus) { }
683 static inline int devm_of_pci_bridge_init(struct device *dev, struct pci_host_bridge *bridge)
688 #endif /* CONFIG_OF */
690 #ifdef CONFIG_PCIEAER
691 void pci_no_aer(void);
692 void pci_aer_init(struct pci_dev *dev);
693 void pci_aer_exit(struct pci_dev *dev);
694 extern const struct attribute_group aer_stats_attr_group;
695 void pci_aer_clear_fatal_status(struct pci_dev *dev);
696 int pci_aer_clear_status(struct pci_dev *dev);
697 int pci_aer_raw_clear_status(struct pci_dev *dev);
699 static inline void pci_no_aer(void) { }
700 static inline void pci_aer_init(struct pci_dev *d) { }
701 static inline void pci_aer_exit(struct pci_dev *d) { }
702 static inline void pci_aer_clear_fatal_status(struct pci_dev *dev) { }
703 static inline int pci_aer_clear_status(struct pci_dev *dev) { return -EINVAL; }
704 static inline int pci_aer_raw_clear_status(struct pci_dev *dev) { return -EINVAL; }
708 int pci_acpi_program_hp_params(struct pci_dev *dev);
709 extern const struct attribute_group pci_dev_acpi_attr_group;
710 void pci_set_acpi_fwnode(struct pci_dev *dev);
711 int pci_dev_acpi_reset(struct pci_dev *dev, bool probe);
713 static inline int pci_dev_acpi_reset(struct pci_dev *dev, bool probe)
718 static inline void pci_set_acpi_fwnode(struct pci_dev *dev) {}
719 static inline int pci_acpi_program_hp_params(struct pci_dev *dev)
725 #ifdef CONFIG_PCIEASPM
726 extern const struct attribute_group aspm_ctrl_attr_group;
729 extern const struct attribute_group pci_dev_reset_method_attr_group;
731 #endif /* DRIVERS_PCI_H */