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 int pci_probe_reset_function(struct pci_dev *dev);
37 int pci_bridge_secondary_bus_reset(struct pci_dev *dev);
38 int pci_bus_error_reset(struct pci_dev *dev);
40 #define PCI_PM_D2_DELAY 200 /* usec; see PCIe r4.0, sec 5.9.1 */
41 #define PCI_PM_D3HOT_WAIT 10 /* msec */
42 #define PCI_PM_D3COLD_WAIT 100 /* msec */
45 * struct pci_platform_pm_ops - Firmware PM callbacks
47 * @bridge_d3: Does the bridge allow entering into D3
49 * @is_manageable: returns 'true' if given device is power manageable by the
52 * @set_state: invokes the platform firmware to set the device's power state
54 * @get_state: queries the platform firmware for a device's current power state
56 * @refresh_state: asks the platform to refresh the device's power state data
58 * @choose_state: returns PCI power state of given device preferred by the
59 * platform; to be used during system-wide transitions from a
60 * sleeping state to the working state and vice versa
62 * @set_wakeup: enables/disables wakeup capability for the device
64 * @need_resume: returns 'true' if the given device (which is currently
65 * suspended) needs to be resumed to be configured for system
68 * If given platform is generally capable of power managing PCI devices, all of
69 * these callbacks are mandatory.
71 struct pci_platform_pm_ops {
72 bool (*bridge_d3)(struct pci_dev *dev);
73 bool (*is_manageable)(struct pci_dev *dev);
74 int (*set_state)(struct pci_dev *dev, pci_power_t state);
75 pci_power_t (*get_state)(struct pci_dev *dev);
76 void (*refresh_state)(struct pci_dev *dev);
77 pci_power_t (*choose_state)(struct pci_dev *dev);
78 int (*set_wakeup)(struct pci_dev *dev, bool enable);
79 bool (*need_resume)(struct pci_dev *dev);
82 int pci_set_platform_pm(const struct pci_platform_pm_ops *ops);
83 void pci_update_current_state(struct pci_dev *dev, pci_power_t state);
84 void pci_refresh_power_state(struct pci_dev *dev);
85 int pci_power_up(struct pci_dev *dev);
86 void pci_disable_enabled_device(struct pci_dev *dev);
87 int pci_finish_runtime_suspend(struct pci_dev *dev);
88 void pcie_clear_device_status(struct pci_dev *dev);
89 void pcie_clear_root_pme_status(struct pci_dev *dev);
90 bool pci_check_pme_status(struct pci_dev *dev);
91 void pci_pme_wakeup_bus(struct pci_bus *bus);
92 int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
93 void pci_pme_restore(struct pci_dev *dev);
94 bool pci_dev_need_resume(struct pci_dev *dev);
95 void pci_dev_adjust_pme(struct pci_dev *dev);
96 void pci_dev_complete_resume(struct pci_dev *pci_dev);
97 void pci_config_pm_runtime_get(struct pci_dev *dev);
98 void pci_config_pm_runtime_put(struct pci_dev *dev);
99 void pci_pm_init(struct pci_dev *dev);
100 void pci_ea_init(struct pci_dev *dev);
101 void pci_msi_init(struct pci_dev *dev);
102 void pci_msix_init(struct pci_dev *dev);
103 void pci_allocate_cap_save_buffers(struct pci_dev *dev);
104 void pci_free_cap_save_buffers(struct pci_dev *dev);
105 bool pci_bridge_d3_possible(struct pci_dev *dev);
106 void pci_bridge_d3_update(struct pci_dev *dev);
107 void pci_bridge_wait_for_secondary_bus(struct pci_dev *dev);
109 static inline void pci_wakeup_event(struct pci_dev *dev)
111 /* Wait 100 ms before the system can be put into a sleep state. */
112 pm_wakeup_event(&dev->dev, 100);
115 static inline bool pci_has_subordinate(struct pci_dev *pci_dev)
117 return !!(pci_dev->subordinate);
120 static inline bool pci_power_manageable(struct pci_dev *pci_dev)
123 * Currently we allow normal PCI devices and PCI bridges transition
124 * into D3 if their bridge_d3 is set.
126 return !pci_has_subordinate(pci_dev) || pci_dev->bridge_d3;
129 static inline bool pcie_downstream_port(const struct pci_dev *dev)
131 int type = pci_pcie_type(dev);
133 return type == PCI_EXP_TYPE_ROOT_PORT ||
134 type == PCI_EXP_TYPE_DOWNSTREAM ||
135 type == PCI_EXP_TYPE_PCIE_BRIDGE;
138 void pci_vpd_init(struct pci_dev *dev);
139 void pci_vpd_release(struct pci_dev *dev);
140 extern const struct attribute_group pci_dev_vpd_attr_group;
142 /* PCI Virtual Channel */
143 int pci_save_vc_state(struct pci_dev *dev);
144 void pci_restore_vc_state(struct pci_dev *dev);
145 void pci_allocate_vc_save_buffers(struct pci_dev *dev);
147 /* PCI /proc functions */
148 #ifdef CONFIG_PROC_FS
149 int pci_proc_attach_device(struct pci_dev *dev);
150 int pci_proc_detach_device(struct pci_dev *dev);
151 int pci_proc_detach_bus(struct pci_bus *bus);
153 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
154 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
155 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
158 /* Functions for PCI Hotplug drivers to use */
159 int pci_hp_add_bridge(struct pci_dev *dev);
161 #ifdef HAVE_PCI_LEGACY
162 void pci_create_legacy_files(struct pci_bus *bus);
163 void pci_remove_legacy_files(struct pci_bus *bus);
165 static inline void pci_create_legacy_files(struct pci_bus *bus) { return; }
166 static inline void pci_remove_legacy_files(struct pci_bus *bus) { return; }
169 /* Lock for read/write access to pci device and bus lists */
170 extern struct rw_semaphore pci_bus_sem;
171 extern struct mutex pci_slot_mutex;
173 extern raw_spinlock_t pci_lock;
175 extern unsigned int pci_pm_d3hot_delay;
177 #ifdef CONFIG_PCI_MSI
178 void pci_no_msi(void);
180 static inline void pci_no_msi(void) { }
183 void pci_realloc_get_opt(char *);
185 static inline int pci_no_d1d2(struct pci_dev *dev)
187 unsigned int parent_dstates = 0;
190 parent_dstates = dev->bus->self->no_d1d2;
191 return (dev->no_d1d2 || parent_dstates);
194 extern const struct attribute_group *pci_dev_groups[];
195 extern const struct attribute_group *pcibus_groups[];
196 extern const struct device_type pci_dev_type;
197 extern const struct attribute_group *pci_bus_groups[];
199 extern unsigned long pci_hotplug_io_size;
200 extern unsigned long pci_hotplug_mmio_size;
201 extern unsigned long pci_hotplug_mmio_pref_size;
202 extern unsigned long pci_hotplug_bus_size;
205 * pci_match_one_device - Tell if a PCI device structure has a matching
206 * PCI device id structure
207 * @id: single PCI device id structure to match
208 * @dev: the PCI device structure to match against
210 * Returns the matching pci_device_id structure or %NULL if there is no match.
212 static inline const struct pci_device_id *
213 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
215 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
216 (id->device == PCI_ANY_ID || id->device == dev->device) &&
217 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
218 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
219 !((id->class ^ dev->class) & id->class_mask))
224 /* PCI slot sysfs helper code */
225 #define to_pci_slot(s) container_of(s, struct pci_slot, kobj)
227 extern struct kset *pci_slots_kset;
229 struct pci_slot_attribute {
230 struct attribute attr;
231 ssize_t (*show)(struct pci_slot *, char *);
232 ssize_t (*store)(struct pci_slot *, const char *, size_t);
234 #define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr)
237 pci_bar_unknown, /* Standard PCI BAR probe */
238 pci_bar_io, /* An I/O port BAR */
239 pci_bar_mem32, /* A 32-bit memory BAR */
240 pci_bar_mem64, /* A 64-bit memory BAR */
243 struct device *pci_get_host_bridge_device(struct pci_dev *dev);
244 void pci_put_host_bridge_device(struct device *dev);
246 int pci_configure_extended_tags(struct pci_dev *dev, void *ign);
247 bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
249 bool pci_bus_generic_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
251 int pci_idt_bus_quirk(struct pci_bus *bus, int devfn, u32 *pl, int crs_timeout);
253 int pci_setup_device(struct pci_dev *dev);
254 int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
255 struct resource *res, unsigned int reg);
256 void pci_configure_ari(struct pci_dev *dev);
257 void __pci_bus_size_bridges(struct pci_bus *bus,
258 struct list_head *realloc_head);
259 void __pci_bus_assign_resources(const struct pci_bus *bus,
260 struct list_head *realloc_head,
261 struct list_head *fail_head);
262 bool pci_bus_clip_resource(struct pci_dev *dev, int idx);
264 void pci_reassigndev_resource_alignment(struct pci_dev *dev);
265 void pci_disable_bridge_window(struct pci_dev *dev);
266 struct pci_bus *pci_bus_get(struct pci_bus *bus);
267 void pci_bus_put(struct pci_bus *bus);
269 /* PCIe link information from Link Capabilities 2 */
270 #define PCIE_LNKCAP2_SLS2SPEED(lnkcap2) \
271 ((lnkcap2) & PCI_EXP_LNKCAP2_SLS_64_0GB ? PCIE_SPEED_64_0GT : \
272 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_32_0GB ? PCIE_SPEED_32_0GT : \
273 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_16_0GB ? PCIE_SPEED_16_0GT : \
274 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_8_0GB ? PCIE_SPEED_8_0GT : \
275 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_5_0GB ? PCIE_SPEED_5_0GT : \
276 (lnkcap2) & PCI_EXP_LNKCAP2_SLS_2_5GB ? PCIE_SPEED_2_5GT : \
279 /* PCIe speed to Mb/s reduced by encoding overhead */
280 #define PCIE_SPEED2MBS_ENC(speed) \
281 ((speed) == PCIE_SPEED_64_0GT ? 64000*128/130 : \
282 (speed) == PCIE_SPEED_32_0GT ? 32000*128/130 : \
283 (speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \
284 (speed) == PCIE_SPEED_8_0GT ? 8000*128/130 : \
285 (speed) == PCIE_SPEED_5_0GT ? 5000*8/10 : \
286 (speed) == PCIE_SPEED_2_5GT ? 2500*8/10 : \
289 const char *pci_speed_string(enum pci_bus_speed speed);
290 enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev);
291 enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev);
292 u32 pcie_bandwidth_capable(struct pci_dev *dev, enum pci_bus_speed *speed,
293 enum pcie_link_width *width);
294 void __pcie_print_link_status(struct pci_dev *dev, bool verbose);
295 void pcie_report_downtraining(struct pci_dev *dev);
296 void pcie_update_link_speed(struct pci_bus *bus, u16 link_status);
298 /* Single Root I/O Virtualization */
300 int pos; /* Capability position */
301 int nres; /* Number of resources */
302 u32 cap; /* SR-IOV Capabilities */
303 u16 ctrl; /* SR-IOV Control */
304 u16 total_VFs; /* Total VFs associated with the PF */
305 u16 initial_VFs; /* Initial VFs associated with the PF */
306 u16 num_VFs; /* Number of VFs available */
307 u16 offset; /* First VF Routing ID offset */
308 u16 stride; /* Following VF stride */
309 u16 vf_device; /* VF device ID */
310 u32 pgsz; /* Page size for BAR alignment */
311 u8 link; /* Function Dependency Link */
312 u8 max_VF_buses; /* Max buses consumed by VFs */
313 u16 driver_max_VFs; /* Max num VFs driver supports */
314 struct pci_dev *dev; /* Lowest numbered PF */
315 struct pci_dev *self; /* This PF */
316 u32 class; /* VF device */
317 u8 hdr_type; /* VF header type */
318 u16 subsystem_vendor; /* VF subsystem vendor */
319 u16 subsystem_device; /* VF subsystem device */
320 resource_size_t barsz[PCI_SRIOV_NUM_BARS]; /* VF BAR size */
321 bool drivers_autoprobe; /* Auto probing of VFs by driver */
325 * pci_dev_set_io_state - Set the new error state if possible.
327 * @dev: PCI device to set new error_state
328 * @new: the state we want dev to be in
330 * Must be called with device_lock held.
332 * Returns true if state has been changed to the requested state.
334 static inline bool pci_dev_set_io_state(struct pci_dev *dev,
335 pci_channel_state_t new)
337 bool changed = false;
339 device_lock_assert(&dev->dev);
341 case pci_channel_io_perm_failure:
342 switch (dev->error_state) {
343 case pci_channel_io_frozen:
344 case pci_channel_io_normal:
345 case pci_channel_io_perm_failure:
350 case pci_channel_io_frozen:
351 switch (dev->error_state) {
352 case pci_channel_io_frozen:
353 case pci_channel_io_normal:
358 case pci_channel_io_normal:
359 switch (dev->error_state) {
360 case pci_channel_io_frozen:
361 case pci_channel_io_normal:
368 dev->error_state = new;
372 static inline int pci_dev_set_disconnected(struct pci_dev *dev, void *unused)
374 device_lock(&dev->dev);
375 pci_dev_set_io_state(dev, pci_channel_io_perm_failure);
376 device_unlock(&dev->dev);
381 static inline bool pci_dev_is_disconnected(const struct pci_dev *dev)
383 return dev->error_state == pci_channel_io_perm_failure;
386 /* pci_dev priv_flags */
387 #define PCI_DEV_ADDED 0
388 #define PCI_DPC_RECOVERED 1
389 #define PCI_DPC_RECOVERING 2
391 static inline void pci_dev_assign_added(struct pci_dev *dev, bool added)
393 assign_bit(PCI_DEV_ADDED, &dev->priv_flags, added);
396 static inline bool pci_dev_is_added(const struct pci_dev *dev)
398 return test_bit(PCI_DEV_ADDED, &dev->priv_flags);
401 #ifdef CONFIG_PCIEAER
402 #include <linux/aer.h>
404 #define AER_MAX_MULTI_ERR_DEVICES 5 /* Not likely to have more */
406 struct aer_err_info {
407 struct pci_dev *dev[AER_MAX_MULTI_ERR_DEVICES];
412 unsigned int severity:2; /* 0:NONFATAL | 1:FATAL | 2:COR */
413 unsigned int __pad1:5;
414 unsigned int multi_error_valid:1;
416 unsigned int first_error:5;
417 unsigned int __pad2:2;
418 unsigned int tlp_header_valid:1;
420 unsigned int status; /* COR/UNCOR Error Status */
421 unsigned int mask; /* COR/UNCOR Error Mask */
422 struct aer_header_log_regs tlp; /* TLP Header */
425 int aer_get_device_error_info(struct pci_dev *dev, struct aer_err_info *info);
426 void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);
427 #endif /* CONFIG_PCIEAER */
429 #ifdef CONFIG_PCIEPORTBUS
430 /* Cached RCEC Endpoint Association */
438 #ifdef CONFIG_PCIE_DPC
439 void pci_save_dpc_state(struct pci_dev *dev);
440 void pci_restore_dpc_state(struct pci_dev *dev);
441 void pci_dpc_init(struct pci_dev *pdev);
442 void dpc_process_error(struct pci_dev *pdev);
443 pci_ers_result_t dpc_reset_link(struct pci_dev *pdev);
444 bool pci_dpc_recovered(struct pci_dev *pdev);
446 static inline void pci_save_dpc_state(struct pci_dev *dev) {}
447 static inline void pci_restore_dpc_state(struct pci_dev *dev) {}
448 static inline void pci_dpc_init(struct pci_dev *pdev) {}
449 static inline bool pci_dpc_recovered(struct pci_dev *pdev) { return false; }
452 #ifdef CONFIG_PCIEPORTBUS
453 void pci_rcec_init(struct pci_dev *dev);
454 void pci_rcec_exit(struct pci_dev *dev);
455 void pcie_link_rcec(struct pci_dev *rcec);
456 void pcie_walk_rcec(struct pci_dev *rcec,
457 int (*cb)(struct pci_dev *, void *),
460 static inline void pci_rcec_init(struct pci_dev *dev) {}
461 static inline void pci_rcec_exit(struct pci_dev *dev) {}
462 static inline void pcie_link_rcec(struct pci_dev *rcec) {}
463 static inline void pcie_walk_rcec(struct pci_dev *rcec,
464 int (*cb)(struct pci_dev *, void *),
468 #ifdef CONFIG_PCI_ATS
469 /* Address Translation Service */
470 void pci_ats_init(struct pci_dev *dev);
471 void pci_restore_ats_state(struct pci_dev *dev);
473 static inline void pci_ats_init(struct pci_dev *d) { }
474 static inline void pci_restore_ats_state(struct pci_dev *dev) { }
475 #endif /* CONFIG_PCI_ATS */
477 #ifdef CONFIG_PCI_PRI
478 void pci_pri_init(struct pci_dev *dev);
479 void pci_restore_pri_state(struct pci_dev *pdev);
481 static inline void pci_pri_init(struct pci_dev *dev) { }
482 static inline void pci_restore_pri_state(struct pci_dev *pdev) { }
485 #ifdef CONFIG_PCI_PASID
486 void pci_pasid_init(struct pci_dev *dev);
487 void pci_restore_pasid_state(struct pci_dev *pdev);
489 static inline void pci_pasid_init(struct pci_dev *dev) { }
490 static inline void pci_restore_pasid_state(struct pci_dev *pdev) { }
493 #ifdef CONFIG_PCI_IOV
494 int pci_iov_init(struct pci_dev *dev);
495 void pci_iov_release(struct pci_dev *dev);
496 void pci_iov_remove(struct pci_dev *dev);
497 void pci_iov_update_resource(struct pci_dev *dev, int resno);
498 resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
499 void pci_restore_iov_state(struct pci_dev *dev);
500 int pci_iov_bus_range(struct pci_bus *bus);
501 extern const struct attribute_group sriov_pf_dev_attr_group;
502 extern const struct attribute_group sriov_vf_dev_attr_group;
504 static inline int pci_iov_init(struct pci_dev *dev)
508 static inline void pci_iov_release(struct pci_dev *dev)
512 static inline void pci_iov_remove(struct pci_dev *dev)
515 static inline void pci_restore_iov_state(struct pci_dev *dev)
518 static inline int pci_iov_bus_range(struct pci_bus *bus)
523 #endif /* CONFIG_PCI_IOV */
525 #ifdef CONFIG_PCIE_PTM
526 void pci_save_ptm_state(struct pci_dev *dev);
527 void pci_restore_ptm_state(struct pci_dev *dev);
528 void pci_disable_ptm(struct pci_dev *dev);
530 static inline void pci_save_ptm_state(struct pci_dev *dev) { }
531 static inline void pci_restore_ptm_state(struct pci_dev *dev) { }
532 static inline void pci_disable_ptm(struct pci_dev *dev) { }
535 unsigned long pci_cardbus_resource_alignment(struct resource *);
537 static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
538 struct resource *res)
540 #ifdef CONFIG_PCI_IOV
541 int resno = res - dev->resource;
543 if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END)
544 return pci_sriov_resource_alignment(dev, resno);
546 if (dev->class >> 8 == PCI_CLASS_BRIDGE_CARDBUS)
547 return pci_cardbus_resource_alignment(res);
548 return resource_alignment(res);
551 void pci_acs_init(struct pci_dev *dev);
552 #ifdef CONFIG_PCI_QUIRKS
553 int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags);
554 int pci_dev_specific_enable_acs(struct pci_dev *dev);
555 int pci_dev_specific_disable_acs_redir(struct pci_dev *dev);
557 static inline int pci_dev_specific_acs_enabled(struct pci_dev *dev,
562 static inline int pci_dev_specific_enable_acs(struct pci_dev *dev)
566 static inline int pci_dev_specific_disable_acs_redir(struct pci_dev *dev)
572 /* PCI error reporting and recovery */
573 pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
574 pci_channel_state_t state,
575 pci_ers_result_t (*reset_subordinates)(struct pci_dev *pdev));
577 bool pcie_wait_for_link(struct pci_dev *pdev, bool active);
578 #ifdef CONFIG_PCIEASPM
579 void pcie_aspm_init_link_state(struct pci_dev *pdev);
580 void pcie_aspm_exit_link_state(struct pci_dev *pdev);
581 void pcie_aspm_pm_state_change(struct pci_dev *pdev);
582 void pcie_aspm_powersave_config_link(struct pci_dev *pdev);
584 static inline void pcie_aspm_init_link_state(struct pci_dev *pdev) { }
585 static inline void pcie_aspm_exit_link_state(struct pci_dev *pdev) { }
586 static inline void pcie_aspm_pm_state_change(struct pci_dev *pdev) { }
587 static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev) { }
590 #ifdef CONFIG_PCIE_ECRC
591 void pcie_set_ecrc_checking(struct pci_dev *dev);
592 void pcie_ecrc_get_policy(char *str);
594 static inline void pcie_set_ecrc_checking(struct pci_dev *dev) { }
595 static inline void pcie_ecrc_get_policy(char *str) { }
598 #ifdef CONFIG_PCIE_PTM
599 void pci_ptm_init(struct pci_dev *dev);
600 int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);
602 static inline void pci_ptm_init(struct pci_dev *dev) { }
603 static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
607 struct pci_dev_reset_methods {
610 int (*reset)(struct pci_dev *dev, int probe);
613 #ifdef CONFIG_PCI_QUIRKS
614 int pci_dev_specific_reset(struct pci_dev *dev, int probe);
616 static inline int pci_dev_specific_reset(struct pci_dev *dev, int probe)
622 #if defined(CONFIG_PCI_QUIRKS) && defined(CONFIG_ARM64)
623 int acpi_get_rc_resources(struct device *dev, const char *hid, u16 segment,
624 struct resource *res);
626 static inline int acpi_get_rc_resources(struct device *dev, const char *hid,
627 u16 segment, struct resource *res)
633 int pci_rebar_get_current_size(struct pci_dev *pdev, int bar);
634 int pci_rebar_set_size(struct pci_dev *pdev, int bar, int size);
635 static inline u64 pci_rebar_size_to_bytes(int size)
637 return 1ULL << (size + 20);
643 int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
644 int of_get_pci_domain_nr(struct device_node *node);
645 int of_pci_get_max_link_speed(struct device_node *node);
646 void pci_set_of_node(struct pci_dev *dev);
647 void pci_release_of_node(struct pci_dev *dev);
648 void pci_set_bus_of_node(struct pci_bus *bus);
649 void pci_release_bus_of_node(struct pci_bus *bus);
651 int devm_of_pci_bridge_init(struct device *dev, struct pci_host_bridge *bridge);
655 of_pci_parse_bus_range(struct device_node *node, struct resource *res)
661 of_get_pci_domain_nr(struct device_node *node)
667 of_pci_get_max_link_speed(struct device_node *node)
672 static inline void pci_set_of_node(struct pci_dev *dev) { }
673 static inline void pci_release_of_node(struct pci_dev *dev) { }
674 static inline void pci_set_bus_of_node(struct pci_bus *bus) { }
675 static inline void pci_release_bus_of_node(struct pci_bus *bus) { }
677 static inline int devm_of_pci_bridge_init(struct device *dev, struct pci_host_bridge *bridge)
682 #endif /* CONFIG_OF */
684 #ifdef CONFIG_PCIEAER
685 void pci_no_aer(void);
686 void pci_aer_init(struct pci_dev *dev);
687 void pci_aer_exit(struct pci_dev *dev);
688 extern const struct attribute_group aer_stats_attr_group;
689 void pci_aer_clear_fatal_status(struct pci_dev *dev);
690 int pci_aer_clear_status(struct pci_dev *dev);
691 int pci_aer_raw_clear_status(struct pci_dev *dev);
693 static inline void pci_no_aer(void) { }
694 static inline void pci_aer_init(struct pci_dev *d) { }
695 static inline void pci_aer_exit(struct pci_dev *d) { }
696 static inline void pci_aer_clear_fatal_status(struct pci_dev *dev) { }
697 static inline int pci_aer_clear_status(struct pci_dev *dev) { return -EINVAL; }
698 static inline int pci_aer_raw_clear_status(struct pci_dev *dev) { return -EINVAL; }
702 int pci_acpi_program_hp_params(struct pci_dev *dev);
703 extern const struct attribute_group pci_dev_acpi_attr_group;
705 static inline int pci_acpi_program_hp_params(struct pci_dev *dev)
711 #ifdef CONFIG_PCIEASPM
712 extern const struct attribute_group aspm_ctrl_attr_group;
715 #endif /* DRIVERS_PCI_H */