Zhao, Yu | 557848c | 2008-10-13 19:18:07 +0800 | [diff] [blame] | 1 | #ifndef DRIVERS_PCI_H |
| 2 | #define DRIVERS_PCI_H |
| 3 | |
| 4 | #define PCI_CFG_SPACE_SIZE 256 |
| 5 | #define PCI_CFG_SPACE_EXP_SIZE 4096 |
| 6 | |
Jacob Keller | 343e51a | 2013-07-31 06:53:16 +0000 | [diff] [blame] | 7 | extern const unsigned char pcie_link_speed[]; |
| 8 | |
Yinghai Lu | 7a1562d | 2014-11-11 12:09:46 -0800 | [diff] [blame] | 9 | bool pcie_cap_has_lnkctl(const struct pci_dev *dev); |
| 10 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | /* Functions internal to the PCI core code */ |
| 12 | |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 13 | int pci_create_sysfs_dev_files(struct pci_dev *pdev); |
| 14 | void pci_remove_sysfs_dev_files(struct pci_dev *pdev); |
Narendra_K@Dell.com | 6058989 | 2011-03-02 22:34:17 +0530 | [diff] [blame] | 15 | #if !defined(CONFIG_DMI) && !defined(CONFIG_ACPI) |
Narendra K | 911e1c9 | 2010-07-26 05:56:50 -0500 | [diff] [blame] | 16 | static inline void pci_create_firmware_label_files(struct pci_dev *pdev) |
Narendra K | b879743f | 2010-08-02 07:44:29 -0500 | [diff] [blame] | 17 | { return; } |
Narendra K | 911e1c9 | 2010-07-26 05:56:50 -0500 | [diff] [blame] | 18 | static inline void pci_remove_firmware_label_files(struct pci_dev *pdev) |
Narendra K | b879743f | 2010-08-02 07:44:29 -0500 | [diff] [blame] | 19 | { return; } |
Narendra K | 911e1c9 | 2010-07-26 05:56:50 -0500 | [diff] [blame] | 20 | #else |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 21 | void pci_create_firmware_label_files(struct pci_dev *pdev); |
| 22 | void pci_remove_firmware_label_files(struct pci_dev *pdev); |
Narendra K | 911e1c9 | 2010-07-26 05:56:50 -0500 | [diff] [blame] | 23 | #endif |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 24 | void pci_cleanup_rom(struct pci_dev *dev); |
Jesse Barnes | 9eff02e | 2008-10-24 10:32:33 -0700 | [diff] [blame] | 25 | #ifdef HAVE_PCI_MMAP |
Martin Wilck | 3b519e4 | 2010-11-10 11:03:21 +0100 | [diff] [blame] | 26 | enum pci_mmap_api { |
| 27 | PCI_MMAP_SYSFS, /* mmap on /sys/bus/pci/devices/<BDF>/resource<N> */ |
| 28 | PCI_MMAP_PROCFS /* mmap on /proc/bus/pci/<BDF> */ |
| 29 | }; |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 30 | int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vmai, |
| 31 | enum pci_mmap_api mmap_api); |
Jesse Barnes | 9eff02e | 2008-10-24 10:32:33 -0700 | [diff] [blame] | 32 | #endif |
Michael S. Tsirkin | 711d577 | 2009-07-27 23:37:48 +0300 | [diff] [blame] | 33 | int pci_probe_reset_function(struct pci_dev *dev); |
Kumar Gala | ce5ccde | 2007-07-16 23:27:10 -0500 | [diff] [blame] | 34 | |
Rafael J. Wysocki | 961d912 | 2008-07-07 03:32:02 +0200 | [diff] [blame] | 35 | /** |
Randy Dunlap | b33bfde | 2009-01-09 17:04:26 -0800 | [diff] [blame] | 36 | * struct pci_platform_pm_ops - Firmware PM callbacks |
Rafael J. Wysocki | 961d912 | 2008-07-07 03:32:02 +0200 | [diff] [blame] | 37 | * |
Randy Dunlap | b33bfde | 2009-01-09 17:04:26 -0800 | [diff] [blame] | 38 | * @is_manageable: returns 'true' if given device is power manageable by the |
| 39 | * platform firmware |
Rafael J. Wysocki | 961d912 | 2008-07-07 03:32:02 +0200 | [diff] [blame] | 40 | * |
Randy Dunlap | b33bfde | 2009-01-09 17:04:26 -0800 | [diff] [blame] | 41 | * @set_state: invokes the platform firmware to set the device's power state |
Rafael J. Wysocki | 961d912 | 2008-07-07 03:32:02 +0200 | [diff] [blame] | 42 | * |
Randy Dunlap | b33bfde | 2009-01-09 17:04:26 -0800 | [diff] [blame] | 43 | * @choose_state: returns PCI power state of given device preferred by the |
| 44 | * platform; to be used during system-wide transitions from a |
| 45 | * sleeping state to the working state and vice versa |
Rafael J. Wysocki | 961d912 | 2008-07-07 03:32:02 +0200 | [diff] [blame] | 46 | * |
Randy Dunlap | b33bfde | 2009-01-09 17:04:26 -0800 | [diff] [blame] | 47 | * @sleep_wake: enables/disables the system wake up capability of given device |
Rafael J. Wysocki | eb9d0fe | 2008-07-07 03:34:48 +0200 | [diff] [blame] | 48 | * |
Rafael J. Wysocki | b67ea76 | 2010-02-17 23:44:09 +0100 | [diff] [blame] | 49 | * @run_wake: enables/disables the platform to generate run-time wake-up events |
| 50 | * for given device (the device's wake-up capability has to be |
| 51 | * enabled by @sleep_wake for this feature to work) |
| 52 | * |
Rafael J. Wysocki | 961d912 | 2008-07-07 03:32:02 +0200 | [diff] [blame] | 53 | * If given platform is generally capable of power managing PCI devices, all of |
| 54 | * these callbacks are mandatory. |
| 55 | */ |
| 56 | struct pci_platform_pm_ops { |
| 57 | bool (*is_manageable)(struct pci_dev *dev); |
| 58 | int (*set_state)(struct pci_dev *dev, pci_power_t state); |
| 59 | pci_power_t (*choose_state)(struct pci_dev *dev); |
Rafael J. Wysocki | eb9d0fe | 2008-07-07 03:34:48 +0200 | [diff] [blame] | 60 | int (*sleep_wake)(struct pci_dev *dev, bool enable); |
Rafael J. Wysocki | b67ea76 | 2010-02-17 23:44:09 +0100 | [diff] [blame] | 61 | int (*run_wake)(struct pci_dev *dev, bool enable); |
Rafael J. Wysocki | 961d912 | 2008-07-07 03:32:02 +0200 | [diff] [blame] | 62 | }; |
| 63 | |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 64 | int pci_set_platform_pm(struct pci_platform_pm_ops *ops); |
| 65 | void pci_update_current_state(struct pci_dev *dev, pci_power_t state); |
| 66 | void pci_power_up(struct pci_dev *dev); |
| 67 | void pci_disable_enabled_device(struct pci_dev *dev); |
| 68 | int pci_finish_runtime_suspend(struct pci_dev *dev); |
| 69 | int __pci_pme_wakeup(struct pci_dev *dev, void *ign); |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 70 | void pci_config_pm_runtime_get(struct pci_dev *dev); |
| 71 | void pci_config_pm_runtime_put(struct pci_dev *dev); |
| 72 | void pci_pm_init(struct pci_dev *dev); |
| 73 | void pci_allocate_cap_save_buffers(struct pci_dev *dev); |
Yinghai Lu | f796841 | 2012-02-11 00:18:30 -0800 | [diff] [blame] | 74 | void pci_free_cap_save_buffers(struct pci_dev *dev); |
Rafael J. Wysocki | aa8c6c9 | 2009-01-16 21:54:43 +0100 | [diff] [blame] | 75 | |
Rafael J. Wysocki | b6e335a | 2010-12-29 13:21:23 +0100 | [diff] [blame] | 76 | static inline void pci_wakeup_event(struct pci_dev *dev) |
| 77 | { |
| 78 | /* Wait 100 ms before the system can be put into a sleep state. */ |
| 79 | pm_wakeup_event(&dev->dev, 100); |
| 80 | } |
| 81 | |
Yijing Wang | 326c1cd | 2014-05-04 12:23:36 +0800 | [diff] [blame] | 82 | static inline bool pci_has_subordinate(struct pci_dev *pci_dev) |
Rafael J. Wysocki | aa8c6c9 | 2009-01-16 21:54:43 +0100 | [diff] [blame] | 83 | { |
| 84 | return !!(pci_dev->subordinate); |
| 85 | } |
David Shaohua Li | 0f64474 | 2005-03-19 00:15:48 -0500 | [diff] [blame] | 86 | |
Ben Hutchings | 94e6108 | 2008-03-05 16:52:39 +0000 | [diff] [blame] | 87 | struct pci_vpd_ops { |
Stephen Hemminger | 287d19c | 2008-12-18 09:17:16 -0800 | [diff] [blame] | 88 | ssize_t (*read)(struct pci_dev *dev, loff_t pos, size_t count, void *buf); |
| 89 | ssize_t (*write)(struct pci_dev *dev, loff_t pos, size_t count, const void *buf); |
Ben Hutchings | 94e6108 | 2008-03-05 16:52:39 +0000 | [diff] [blame] | 90 | void (*release)(struct pci_dev *dev); |
| 91 | }; |
| 92 | |
| 93 | struct pci_vpd { |
Benjamin Li | 99cb233d | 2008-07-02 10:59:04 -0700 | [diff] [blame] | 94 | unsigned int len; |
Stephen Hemminger | 287d19c | 2008-12-18 09:17:16 -0800 | [diff] [blame] | 95 | const struct pci_vpd_ops *ops; |
Ben Hutchings | 94e6108 | 2008-03-05 16:52:39 +0000 | [diff] [blame] | 96 | struct bin_attribute *attr; /* descriptor for sysfs VPD entry */ |
| 97 | }; |
| 98 | |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 99 | int pci_vpd_pci22_init(struct pci_dev *dev); |
Ben Hutchings | 94e6108 | 2008-03-05 16:52:39 +0000 | [diff] [blame] | 100 | static inline void pci_vpd_release(struct pci_dev *dev) |
| 101 | { |
| 102 | if (dev->vpd) |
| 103 | dev->vpd->ops->release(dev); |
| 104 | } |
| 105 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | /* PCI /proc functions */ |
| 107 | #ifdef CONFIG_PROC_FS |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 108 | int pci_proc_attach_device(struct pci_dev *dev); |
| 109 | int pci_proc_detach_device(struct pci_dev *dev); |
| 110 | int pci_proc_detach_bus(struct pci_bus *bus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | #else |
| 112 | static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; } |
| 113 | static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; } |
| 115 | #endif |
| 116 | |
| 117 | /* Functions for PCI Hotplug drivers to use */ |
Yinghai Lu | a8e4b9c | 2012-05-18 13:46:34 -0600 | [diff] [blame] | 118 | int pci_hp_add_bridge(struct pci_dev *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
Benjamin Herrenschmidt | f19aeb1 | 2008-10-03 19:49:32 +1000 | [diff] [blame] | 120 | #ifdef HAVE_PCI_LEGACY |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 121 | void pci_create_legacy_files(struct pci_bus *bus); |
| 122 | void pci_remove_legacy_files(struct pci_bus *bus); |
Benjamin Herrenschmidt | f19aeb1 | 2008-10-03 19:49:32 +1000 | [diff] [blame] | 123 | #else |
| 124 | static inline void pci_create_legacy_files(struct pci_bus *bus) { return; } |
| 125 | static inline void pci_remove_legacy_files(struct pci_bus *bus) { return; } |
| 126 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
| 128 | /* Lock for read/write access to pci device and bus lists */ |
Zhang Yanmin | d71374d | 2006-06-02 12:35:43 +0800 | [diff] [blame] | 129 | extern struct rw_semaphore pci_bus_sem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | |
Jan Kiszka | a2e2778 | 2011-11-04 09:46:00 +0100 | [diff] [blame] | 131 | extern raw_spinlock_t pci_lock; |
| 132 | |
Kristen Carlson Accardi | ffadcc2 | 2006-07-12 08:59:00 -0700 | [diff] [blame] | 133 | extern unsigned int pci_pm_d3_delay; |
Michael Ellerman | 88187df | 2007-01-25 19:34:07 +1100 | [diff] [blame] | 134 | |
Andrew Morton | 4b47b0e | 2005-08-16 15:16:05 -0700 | [diff] [blame] | 135 | #ifdef CONFIG_PCI_MSI |
Matthew Wilcox | 309e57d | 2006-03-05 22:33:34 -0700 | [diff] [blame] | 136 | void pci_no_msi(void); |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 137 | void pci_msi_init_pci_dev(struct pci_dev *dev); |
Andrew Morton | 4b47b0e | 2005-08-16 15:16:05 -0700 | [diff] [blame] | 138 | #else |
Matthew Wilcox | 309e57d | 2006-03-05 22:33:34 -0700 | [diff] [blame] | 139 | static inline void pci_no_msi(void) { } |
Michael Ellerman | 4aa9bc9 | 2007-04-05 17:19:10 +1000 | [diff] [blame] | 140 | static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { } |
Andrew Morton | 4b47b0e | 2005-08-16 15:16:05 -0700 | [diff] [blame] | 141 | #endif |
Michael Ellerman | 8fed4b6 | 2007-01-25 19:34:08 +1100 | [diff] [blame] | 142 | |
Yinghai Lu | b55438f | 2012-02-23 19:23:30 -0800 | [diff] [blame] | 143 | void pci_realloc_get_opt(char *); |
Ram Pai | f483d39 | 2011-07-07 11:19:10 -0700 | [diff] [blame] | 144 | |
Kristen Carlson Accardi | ffadcc2 | 2006-07-12 08:59:00 -0700 | [diff] [blame] | 145 | static inline int pci_no_d1d2(struct pci_dev *dev) |
| 146 | { |
| 147 | unsigned int parent_dstates = 0; |
Andrew Morton | 4b47b0e | 2005-08-16 15:16:05 -0700 | [diff] [blame] | 148 | |
Kristen Carlson Accardi | ffadcc2 | 2006-07-12 08:59:00 -0700 | [diff] [blame] | 149 | if (dev->bus->self) |
| 150 | parent_dstates = dev->bus->self->no_d1d2; |
| 151 | return (dev->no_d1d2 || parent_dstates); |
| 152 | |
| 153 | } |
Greg Kroah-Hartman | 5136b2d | 2013-10-06 23:55:40 -0700 | [diff] [blame] | 154 | extern const struct attribute_group *pci_dev_groups[]; |
Greg Kroah-Hartman | 56039e6 | 2013-07-24 15:05:17 -0700 | [diff] [blame] | 155 | extern const struct attribute_group *pcibus_groups[]; |
Yinghai Lu | 4e15c46 | 2012-11-05 15:20:34 -0500 | [diff] [blame] | 156 | extern struct device_type pci_dev_type; |
Greg Kroah-Hartman | 0f49ba5 | 2013-10-07 14:51:02 -0600 | [diff] [blame] | 157 | extern const struct attribute_group *pci_bus_groups[]; |
Alex Chiang | 705b1aa | 2009-03-20 14:56:31 -0600 | [diff] [blame] | 158 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | |
| 160 | /** |
| 161 | * pci_match_one_device - Tell if a PCI device structure has a matching |
| 162 | * PCI device id structure |
| 163 | * @id: single PCI device id structure to match |
| 164 | * @dev: the PCI device structure to match against |
Greg Kroah-Hartman | 367b09f | 2008-01-30 15:21:33 -0800 | [diff] [blame] | 165 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | * Returns the matching pci_device_id structure or %NULL if there is no match. |
| 167 | */ |
| 168 | static inline const struct pci_device_id * |
| 169 | pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev) |
| 170 | { |
| 171 | if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) && |
| 172 | (id->device == PCI_ANY_ID || id->device == dev->device) && |
| 173 | (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) && |
| 174 | (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) && |
| 175 | !((id->class ^ dev->class) & id->class_mask)) |
| 176 | return id; |
| 177 | return NULL; |
| 178 | } |
| 179 | |
Alex Chiang | f46753c | 2008-06-10 15:28:50 -0600 | [diff] [blame] | 180 | /* PCI slot sysfs helper code */ |
| 181 | #define to_pci_slot(s) container_of(s, struct pci_slot, kobj) |
| 182 | |
| 183 | extern struct kset *pci_slots_kset; |
| 184 | |
| 185 | struct pci_slot_attribute { |
| 186 | struct attribute attr; |
| 187 | ssize_t (*show)(struct pci_slot *, char *); |
| 188 | ssize_t (*store)(struct pci_slot *, const char *, size_t); |
| 189 | }; |
| 190 | #define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr) |
| 191 | |
Yu Zhao | 0b400c7 | 2008-11-22 02:40:40 +0800 | [diff] [blame] | 192 | enum pci_bar_type { |
| 193 | pci_bar_unknown, /* Standard PCI BAR probe */ |
| 194 | pci_bar_io, /* An io port BAR */ |
| 195 | pci_bar_mem32, /* A 32-bit memory BAR */ |
| 196 | pci_bar_mem64, /* A 64-bit memory BAR */ |
| 197 | }; |
| 198 | |
Yinghai Lu | efdc87d | 2012-01-27 10:55:10 -0800 | [diff] [blame] | 199 | bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl, |
| 200 | int crs_timeout); |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 201 | int pci_setup_device(struct pci_dev *dev); |
| 202 | int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, |
| 203 | struct resource *res, unsigned int reg); |
| 204 | int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type); |
| 205 | void pci_configure_ari(struct pci_dev *dev); |
Bjorn Helgaas | 10874f5 | 2014-04-14 16:11:40 -0600 | [diff] [blame] | 206 | void __pci_bus_size_bridges(struct pci_bus *bus, |
Jiang Liu | d66ecb7 | 2013-06-23 01:01:35 +0200 | [diff] [blame] | 207 | struct list_head *realloc_head); |
Bjorn Helgaas | 10874f5 | 2014-04-14 16:11:40 -0600 | [diff] [blame] | 208 | void __pci_bus_assign_resources(const struct pci_bus *bus, |
| 209 | struct list_head *realloc_head, |
| 210 | struct list_head *fail_head); |
Bjorn Helgaas | 939de1d | 2013-01-26 17:35:58 -0700 | [diff] [blame] | 211 | |
Yu Zhao | 58c3a72 | 2008-10-14 14:02:53 +0800 | [diff] [blame] | 212 | /** |
| 213 | * pci_ari_enabled - query ARI forwarding status |
Yu Zhao | 6a49d812 | 2008-11-22 02:38:21 +0800 | [diff] [blame] | 214 | * @bus: the PCI bus |
Yu Zhao | 58c3a72 | 2008-10-14 14:02:53 +0800 | [diff] [blame] | 215 | * |
| 216 | * Returns 1 if ARI forwarding is enabled, or 0 if not enabled; |
| 217 | */ |
Yu Zhao | 6a49d812 | 2008-11-22 02:38:21 +0800 | [diff] [blame] | 218 | static inline int pci_ari_enabled(struct pci_bus *bus) |
Yu Zhao | 58c3a72 | 2008-10-14 14:02:53 +0800 | [diff] [blame] | 219 | { |
Yu Zhao | 6a49d812 | 2008-11-22 02:38:21 +0800 | [diff] [blame] | 220 | return bus->self && bus->self->ari_enabled; |
Yu Zhao | 58c3a72 | 2008-10-14 14:02:53 +0800 | [diff] [blame] | 221 | } |
| 222 | |
Yinghai Lu | 2069ecf | 2012-02-15 21:40:31 -0800 | [diff] [blame] | 223 | void pci_reassigndev_resource_alignment(struct pci_dev *dev); |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 224 | void pci_disable_bridge_window(struct pci_dev *dev); |
Yuji Shimada | 32a9a682 | 2009-03-16 17:13:39 +0900 | [diff] [blame] | 225 | |
Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 226 | /* Single Root I/O Virtualization */ |
| 227 | struct pci_sriov { |
| 228 | int pos; /* capability position */ |
| 229 | int nres; /* number of resources */ |
| 230 | u32 cap; /* SR-IOV Capabilities */ |
| 231 | u16 ctrl; /* SR-IOV Control */ |
Bjorn Helgaas | 6b13672 | 2012-11-09 20:27:53 -0700 | [diff] [blame] | 232 | u16 total_VFs; /* total VFs associated with the PF */ |
| 233 | u16 initial_VFs; /* initial VFs associated with the PF */ |
| 234 | u16 num_VFs; /* number of VFs available */ |
Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 235 | u16 offset; /* first VF Routing ID offset */ |
| 236 | u16 stride; /* following VF stride */ |
| 237 | u32 pgsz; /* page size for BAR alignment */ |
| 238 | u8 link; /* Function Dependency Link */ |
Bjorn Helgaas | 6b13672 | 2012-11-09 20:27:53 -0700 | [diff] [blame] | 239 | u16 driver_max_VFs; /* max num VFs driver supports */ |
Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 240 | struct pci_dev *dev; /* lowest numbered PF */ |
| 241 | struct pci_dev *self; /* this PF */ |
| 242 | struct mutex lock; /* lock for VF bus */ |
| 243 | }; |
| 244 | |
Hao, Xudong | 1900ca1 | 2011-12-17 21:24:40 +0800 | [diff] [blame] | 245 | #ifdef CONFIG_PCI_ATS |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 246 | void pci_restore_ats_state(struct pci_dev *dev); |
Hao, Xudong | 1900ca1 | 2011-12-17 21:24:40 +0800 | [diff] [blame] | 247 | #else |
| 248 | static inline void pci_restore_ats_state(struct pci_dev *dev) |
| 249 | { |
| 250 | } |
| 251 | #endif /* CONFIG_PCI_ATS */ |
| 252 | |
Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 253 | #ifdef CONFIG_PCI_IOV |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 254 | int pci_iov_init(struct pci_dev *dev); |
| 255 | void pci_iov_release(struct pci_dev *dev); |
Myron Stowe | 26ff46c | 2014-11-11 08:04:50 -0700 | [diff] [blame] | 256 | int pci_iov_resource_bar(struct pci_dev *dev, int resno); |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 257 | resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno); |
| 258 | void pci_restore_iov_state(struct pci_dev *dev); |
| 259 | int pci_iov_bus_range(struct pci_bus *bus); |
Yu Zhao | 302b421 | 2009-05-18 13:51:32 +0800 | [diff] [blame] | 260 | |
Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 261 | #else |
| 262 | static inline int pci_iov_init(struct pci_dev *dev) |
| 263 | { |
| 264 | return -ENODEV; |
| 265 | } |
| 266 | static inline void pci_iov_release(struct pci_dev *dev) |
| 267 | |
| 268 | { |
| 269 | } |
Myron Stowe | 26ff46c | 2014-11-11 08:04:50 -0700 | [diff] [blame] | 270 | static inline int pci_iov_resource_bar(struct pci_dev *dev, int resno) |
Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 271 | { |
| 272 | return 0; |
| 273 | } |
Yu Zhao | 8c5cdb6 | 2009-03-20 11:25:12 +0800 | [diff] [blame] | 274 | static inline void pci_restore_iov_state(struct pci_dev *dev) |
| 275 | { |
| 276 | } |
Yu Zhao | a28724b | 2009-03-20 11:25:13 +0800 | [diff] [blame] | 277 | static inline int pci_iov_bus_range(struct pci_bus *bus) |
| 278 | { |
| 279 | return 0; |
| 280 | } |
Yu Zhao | 302b421 | 2009-05-18 13:51:32 +0800 | [diff] [blame] | 281 | |
Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 282 | #endif /* CONFIG_PCI_IOV */ |
| 283 | |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 284 | unsigned long pci_cardbus_resource_alignment(struct resource *); |
Ram Pai | 0a2daa1 | 2011-07-25 13:08:41 -0700 | [diff] [blame] | 285 | |
Cam Macdonell | 0e52247 | 2010-09-07 17:25:20 -0700 | [diff] [blame] | 286 | static inline resource_size_t pci_resource_alignment(struct pci_dev *dev, |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 287 | struct resource *res) |
Chris Wright | 6faf17f | 2009-08-28 13:00:06 -0700 | [diff] [blame] | 288 | { |
| 289 | #ifdef CONFIG_PCI_IOV |
| 290 | int resno = res - dev->resource; |
| 291 | |
| 292 | if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END) |
| 293 | return pci_sriov_resource_alignment(dev, resno); |
| 294 | #endif |
Ram Pai | 0a2daa1 | 2011-07-25 13:08:41 -0700 | [diff] [blame] | 295 | if (dev->class >> 8 == PCI_CLASS_BRIDGE_CARDBUS) |
| 296 | return pci_cardbus_resource_alignment(res); |
Chris Wright | 6faf17f | 2009-08-28 13:00:06 -0700 | [diff] [blame] | 297 | return resource_alignment(res); |
| 298 | } |
| 299 | |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 300 | void pci_enable_acs(struct pci_dev *dev); |
Allen Kay | ae21ee6 | 2009-10-07 10:27:17 -0700 | [diff] [blame] | 301 | |
Dexuan Cui | b9c3b26 | 2009-12-07 13:03:21 +0800 | [diff] [blame] | 302 | struct pci_dev_reset_methods { |
| 303 | u16 vendor; |
| 304 | u16 device; |
| 305 | int (*reset)(struct pci_dev *dev, int probe); |
| 306 | }; |
| 307 | |
Rafael J. Wysocki | 93177a7 | 2010-01-02 22:57:24 +0100 | [diff] [blame] | 308 | #ifdef CONFIG_PCI_QUIRKS |
Bjorn Helgaas | f39d5b7 | 2013-04-12 12:02:59 -0600 | [diff] [blame] | 309 | int pci_dev_specific_reset(struct pci_dev *dev, int probe); |
Rafael J. Wysocki | 93177a7 | 2010-01-02 22:57:24 +0100 | [diff] [blame] | 310 | #else |
| 311 | static inline int pci_dev_specific_reset(struct pci_dev *dev, int probe) |
| 312 | { |
| 313 | return -ENOTTY; |
| 314 | } |
| 315 | #endif |
Dexuan Cui | b9c3b26 | 2009-12-07 13:03:21 +0800 | [diff] [blame] | 316 | |
Zhao, Yu | 557848c | 2008-10-13 19:18:07 +0800 | [diff] [blame] | 317 | #endif /* DRIVERS_PCI_H */ |