ia64/linux-2.6.18-xen.hg
annotate include/linux/pci.h @ 790:77e3b255381e
linux: remove xen specific member from pci_dev
Move msi related variable irq_old out of struct pci_dev. This is
logically more consistent and has the additional benefit that xen
kernel and vanilla kernel now have the same pci_dev layout
Signed-off-by: Qing He <qing.he@intel.com>
Move msi related variable irq_old out of struct pci_dev. This is
logically more consistent and has the additional benefit that xen
kernel and vanilla kernel now have the same pci_dev layout
Signed-off-by: Qing He <qing.he@intel.com>
author | Keir Fraser <keir.fraser@citrix.com> |
---|---|
date | Wed Feb 04 12:25:09 2009 +0000 (2009-02-04) |
parents | 2fdc121e9b5d |
children | 36d8c23b7574 |
rev | line source |
---|---|
ian@0 | 1 /* |
ian@0 | 2 * pci.h |
ian@0 | 3 * |
ian@0 | 4 * PCI defines and function prototypes |
ian@0 | 5 * Copyright 1994, Drew Eckhardt |
ian@0 | 6 * Copyright 1997--1999 Martin Mares <mj@ucw.cz> |
ian@0 | 7 * |
ian@0 | 8 * For more information, please consult the following manuals (look at |
ian@0 | 9 * http://www.pcisig.com/ for how to get them): |
ian@0 | 10 * |
ian@0 | 11 * PCI BIOS Specification |
ian@0 | 12 * PCI Local Bus Specification |
ian@0 | 13 * PCI to PCI Bridge Specification |
ian@0 | 14 * PCI System Design Guide |
ian@0 | 15 */ |
ian@0 | 16 |
ian@0 | 17 #ifndef LINUX_PCI_H |
ian@0 | 18 #define LINUX_PCI_H |
ian@0 | 19 |
ian@0 | 20 /* Include the pci register defines */ |
ian@0 | 21 #include <linux/pci_regs.h> |
ian@0 | 22 |
ian@0 | 23 /* Include the ID list */ |
ian@0 | 24 #include <linux/pci_ids.h> |
ian@0 | 25 |
ian@0 | 26 /* |
ian@0 | 27 * The PCI interface treats multi-function devices as independent |
ian@0 | 28 * devices. The slot/function address of each device is encoded |
ian@0 | 29 * in a single byte as follows: |
ian@0 | 30 * |
ian@0 | 31 * 7:3 = slot |
ian@0 | 32 * 2:0 = function |
ian@0 | 33 */ |
ian@0 | 34 #define PCI_DEVFN(slot,func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) |
ian@0 | 35 #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f) |
ian@0 | 36 #define PCI_FUNC(devfn) ((devfn) & 0x07) |
ian@0 | 37 |
ian@0 | 38 /* Ioctls for /proc/bus/pci/X/Y nodes. */ |
ian@0 | 39 #define PCIIOC_BASE ('P' << 24 | 'C' << 16 | 'I' << 8) |
ian@0 | 40 #define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00) /* Get controller for PCI device. */ |
ian@0 | 41 #define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01) /* Set mmap state to I/O space. */ |
ian@0 | 42 #define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02) /* Set mmap state to MEM space. */ |
ian@0 | 43 #define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03) /* Enable/disable write-combining. */ |
ian@0 | 44 |
ian@0 | 45 #ifdef __KERNEL__ |
ian@0 | 46 |
ian@0 | 47 #include <linux/mod_devicetable.h> |
ian@0 | 48 |
ian@0 | 49 #include <linux/types.h> |
ian@0 | 50 #include <linux/ioport.h> |
ian@0 | 51 #include <linux/list.h> |
ian@0 | 52 #include <linux/errno.h> |
ian@0 | 53 #include <linux/device.h> |
ian@0 | 54 |
ian@0 | 55 /* File state for mmap()s on /proc/bus/pci/X/Y */ |
ian@0 | 56 enum pci_mmap_state { |
ian@0 | 57 pci_mmap_io, |
ian@0 | 58 pci_mmap_mem |
ian@0 | 59 }; |
ian@0 | 60 |
ian@0 | 61 /* This defines the direction arg to the DMA mapping routines. */ |
ian@0 | 62 #define PCI_DMA_BIDIRECTIONAL 0 |
ian@0 | 63 #define PCI_DMA_TODEVICE 1 |
ian@0 | 64 #define PCI_DMA_FROMDEVICE 2 |
ian@0 | 65 #define PCI_DMA_NONE 3 |
ian@0 | 66 |
ian@0 | 67 #define DEVICE_COUNT_COMPATIBLE 4 |
ian@0 | 68 #define DEVICE_COUNT_RESOURCE 12 |
ian@0 | 69 |
ian@0 | 70 typedef int __bitwise pci_power_t; |
ian@0 | 71 |
ian@0 | 72 #define PCI_D0 ((pci_power_t __force) 0) |
ian@0 | 73 #define PCI_D1 ((pci_power_t __force) 1) |
ian@0 | 74 #define PCI_D2 ((pci_power_t __force) 2) |
ian@0 | 75 #define PCI_D3hot ((pci_power_t __force) 3) |
ian@0 | 76 #define PCI_D3cold ((pci_power_t __force) 4) |
ian@0 | 77 #define PCI_UNKNOWN ((pci_power_t __force) 5) |
ian@0 | 78 #define PCI_POWER_ERROR ((pci_power_t __force) -1) |
ian@0 | 79 |
ian@0 | 80 /** The pci_channel state describes connectivity between the CPU and |
ian@0 | 81 * the pci device. If some PCI bus between here and the pci device |
ian@0 | 82 * has crashed or locked up, this info is reflected here. |
ian@0 | 83 */ |
ian@0 | 84 typedef unsigned int __bitwise pci_channel_state_t; |
ian@0 | 85 |
ian@0 | 86 enum pci_channel_state { |
ian@0 | 87 /* I/O channel is in normal state */ |
ian@0 | 88 pci_channel_io_normal = (__force pci_channel_state_t) 1, |
ian@0 | 89 |
ian@0 | 90 /* I/O to channel is blocked */ |
ian@0 | 91 pci_channel_io_frozen = (__force pci_channel_state_t) 2, |
ian@0 | 92 |
ian@0 | 93 /* PCI card is dead */ |
ian@0 | 94 pci_channel_io_perm_failure = (__force pci_channel_state_t) 3, |
ian@0 | 95 }; |
ian@0 | 96 |
ian@0 | 97 typedef unsigned short __bitwise pci_bus_flags_t; |
ian@0 | 98 enum pci_bus_flags { |
ian@0 | 99 PCI_BUS_FLAGS_NO_MSI = (__force pci_bus_flags_t) 1, |
ian@0 | 100 }; |
ian@0 | 101 |
ian@0 | 102 struct pci_cap_saved_state { |
ian@0 | 103 struct hlist_node next; |
ian@0 | 104 char cap_nr; |
ian@0 | 105 u32 data[0]; |
ian@0 | 106 }; |
ian@0 | 107 |
ian@0 | 108 /* |
ian@0 | 109 * The pci_dev structure is used to describe PCI devices. |
ian@0 | 110 */ |
ian@0 | 111 struct pci_dev { |
ian@0 | 112 struct list_head global_list; /* node in list of all PCI devices */ |
ian@0 | 113 struct list_head bus_list; /* node in per-bus list */ |
ian@0 | 114 struct pci_bus *bus; /* bus this device is on */ |
ian@0 | 115 struct pci_bus *subordinate; /* bus this device bridges to */ |
ian@0 | 116 |
ian@0 | 117 void *sysdata; /* hook for sys-specific extension */ |
ian@0 | 118 struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */ |
ian@0 | 119 |
ian@0 | 120 unsigned int devfn; /* encoded device & function index */ |
ian@0 | 121 unsigned short vendor; |
ian@0 | 122 unsigned short device; |
ian@0 | 123 unsigned short subsystem_vendor; |
ian@0 | 124 unsigned short subsystem_device; |
ian@0 | 125 unsigned int class; /* 3 bytes: (base,sub,prog-if) */ |
ian@0 | 126 u8 hdr_type; /* PCI header type (`multi' flag masked out) */ |
ian@0 | 127 u8 rom_base_reg; /* which config register controls the ROM */ |
ian@0 | 128 u8 pin; /* which interrupt pin this device uses */ |
ian@0 | 129 |
ian@0 | 130 struct pci_driver *driver; /* which driver has allocated this device */ |
ian@0 | 131 u64 dma_mask; /* Mask of the bits of bus address this |
ian@0 | 132 device implements. Normally this is |
ian@0 | 133 0xffffffff. You only need to change |
ian@0 | 134 this if your device has broken DMA |
ian@0 | 135 or supports 64-bit transfers. */ |
ian@0 | 136 |
ian@0 | 137 pci_power_t current_state; /* Current operating state. In ACPI-speak, |
ian@0 | 138 this is D0-D3, D0 being fully functional, |
ian@0 | 139 and D3 being off. */ |
ian@0 | 140 |
ian@0 | 141 pci_channel_state_t error_state; /* current connectivity state */ |
ian@0 | 142 struct device dev; /* Generic device interface */ |
ian@0 | 143 |
ian@0 | 144 /* device is compatible with these IDs */ |
ian@0 | 145 unsigned short vendor_compatible[DEVICE_COUNT_COMPATIBLE]; |
ian@0 | 146 unsigned short device_compatible[DEVICE_COUNT_COMPATIBLE]; |
ian@0 | 147 |
ian@0 | 148 int cfg_size; /* Size of configuration space */ |
ian@0 | 149 |
ian@0 | 150 /* |
ian@0 | 151 * Instead of touching interrupt line and base address registers |
ian@0 | 152 * directly, use the values stored here. They might be different! |
ian@0 | 153 */ |
ian@0 | 154 unsigned int irq; |
ian@0 | 155 struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */ |
ian@0 | 156 |
ian@0 | 157 /* These fields are used by common fixups */ |
ian@0 | 158 unsigned int transparent:1; /* Transparent PCI bridge */ |
ian@0 | 159 unsigned int multifunction:1;/* Part of multi-function device */ |
ian@0 | 160 /* keep track of device state */ |
ian@0 | 161 unsigned int is_enabled:1; /* pci_enable_device has been called */ |
ian@0 | 162 unsigned int is_busmaster:1; /* device is busmaster */ |
ian@0 | 163 unsigned int no_msi:1; /* device may not use msi */ |
ian@0 | 164 unsigned int no_d1d2:1; /* only allow d0 or d3 */ |
ian@0 | 165 unsigned int block_ucfg_access:1; /* userspace config space access is blocked */ |
ian@0 | 166 unsigned int broken_parity_status:1; /* Device generates false positive parity */ |
ian@0 | 167 unsigned int msi_enabled:1; |
ian@0 | 168 unsigned int msix_enabled:1; |
ian@0 | 169 |
ian@0 | 170 u32 saved_config_space[16]; /* config space saved at suspend time */ |
ian@0 | 171 struct hlist_head saved_cap_space; |
ian@0 | 172 struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */ |
ian@0 | 173 int rom_attr_enabled; /* has display of the rom attribute been enabled? */ |
ian@0 | 174 struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */ |
ian@0 | 175 }; |
ian@0 | 176 |
ian@0 | 177 #define pci_dev_g(n) list_entry(n, struct pci_dev, global_list) |
ian@0 | 178 #define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list) |
ian@0 | 179 #define to_pci_dev(n) container_of(n, struct pci_dev, dev) |
ian@0 | 180 #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL) |
ian@0 | 181 |
ian@0 | 182 static inline struct pci_cap_saved_state *pci_find_saved_cap( |
ian@0 | 183 struct pci_dev *pci_dev,char cap) |
ian@0 | 184 { |
ian@0 | 185 struct pci_cap_saved_state *tmp; |
ian@0 | 186 struct hlist_node *pos; |
ian@0 | 187 |
ian@0 | 188 hlist_for_each_entry(tmp, pos, &pci_dev->saved_cap_space, next) { |
ian@0 | 189 if (tmp->cap_nr == cap) |
ian@0 | 190 return tmp; |
ian@0 | 191 } |
ian@0 | 192 return NULL; |
ian@0 | 193 } |
ian@0 | 194 |
ian@0 | 195 static inline void pci_add_saved_cap(struct pci_dev *pci_dev, |
ian@0 | 196 struct pci_cap_saved_state *new_cap) |
ian@0 | 197 { |
ian@0 | 198 hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space); |
ian@0 | 199 } |
ian@0 | 200 |
ian@0 | 201 static inline void pci_remove_saved_cap(struct pci_cap_saved_state *cap) |
ian@0 | 202 { |
ian@0 | 203 hlist_del(&cap->next); |
ian@0 | 204 } |
ian@0 | 205 |
ian@0 | 206 /* |
ian@0 | 207 * For PCI devices, the region numbers are assigned this way: |
ian@0 | 208 * |
ian@0 | 209 * 0-5 standard PCI regions |
ian@0 | 210 * 6 expansion ROM |
ian@0 | 211 * 7-10 bridges: address space assigned to buses behind the bridge |
ian@0 | 212 */ |
ian@0 | 213 |
ian@0 | 214 #define PCI_ROM_RESOURCE 6 |
ian@0 | 215 #define PCI_BRIDGE_RESOURCES 7 |
ian@0 | 216 #define PCI_NUM_RESOURCES 11 |
ian@0 | 217 |
ian@0 | 218 #ifndef PCI_BUS_NUM_RESOURCES |
ian@0 | 219 #define PCI_BUS_NUM_RESOURCES 8 |
ian@0 | 220 #endif |
ian@0 | 221 |
ian@0 | 222 #define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */ |
ian@0 | 223 |
ian@0 | 224 struct pci_bus { |
ian@0 | 225 struct list_head node; /* node in list of buses */ |
ian@0 | 226 struct pci_bus *parent; /* parent bus this bridge is on */ |
ian@0 | 227 struct list_head children; /* list of child buses */ |
ian@0 | 228 struct list_head devices; /* list of devices on this bus */ |
ian@0 | 229 struct pci_dev *self; /* bridge device as seen by parent */ |
ian@0 | 230 struct resource *resource[PCI_BUS_NUM_RESOURCES]; |
ian@0 | 231 /* address space routed to this bus */ |
ian@0 | 232 |
ian@0 | 233 struct pci_ops *ops; /* configuration access functions */ |
ian@0 | 234 void *sysdata; /* hook for sys-specific extension */ |
ian@0 | 235 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */ |
ian@0 | 236 |
ian@0 | 237 unsigned char number; /* bus number */ |
ian@0 | 238 unsigned char primary; /* number of primary bridge */ |
ian@0 | 239 unsigned char secondary; /* number of secondary bridge */ |
ian@0 | 240 unsigned char subordinate; /* max number of subordinate buses */ |
ian@0 | 241 |
ian@0 | 242 char name[48]; |
ian@0 | 243 |
ian@0 | 244 unsigned short bridge_ctl; /* manage NO_ISA/FBB/et al behaviors */ |
ian@0 | 245 pci_bus_flags_t bus_flags; /* Inherited by child busses */ |
ian@0 | 246 struct device *bridge; |
ian@0 | 247 struct class_device class_dev; |
ian@0 | 248 struct bin_attribute *legacy_io; /* legacy I/O for this bus */ |
ian@0 | 249 struct bin_attribute *legacy_mem; /* legacy mem */ |
ian@0 | 250 }; |
ian@0 | 251 |
ian@0 | 252 #define pci_bus_b(n) list_entry(n, struct pci_bus, node) |
ian@0 | 253 #define to_pci_bus(n) container_of(n, struct pci_bus, class_dev) |
ian@0 | 254 |
ian@0 | 255 /* |
ian@0 | 256 * Error values that may be returned by PCI functions. |
ian@0 | 257 */ |
ian@0 | 258 #define PCIBIOS_SUCCESSFUL 0x00 |
ian@0 | 259 #define PCIBIOS_FUNC_NOT_SUPPORTED 0x81 |
ian@0 | 260 #define PCIBIOS_BAD_VENDOR_ID 0x83 |
ian@0 | 261 #define PCIBIOS_DEVICE_NOT_FOUND 0x86 |
ian@0 | 262 #define PCIBIOS_BAD_REGISTER_NUMBER 0x87 |
ian@0 | 263 #define PCIBIOS_SET_FAILED 0x88 |
ian@0 | 264 #define PCIBIOS_BUFFER_TOO_SMALL 0x89 |
ian@0 | 265 |
ian@0 | 266 /* Low-level architecture-dependent routines */ |
ian@0 | 267 |
ian@0 | 268 struct pci_ops { |
ian@0 | 269 int (*read)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val); |
ian@0 | 270 int (*write)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val); |
ian@0 | 271 }; |
ian@0 | 272 |
ian@0 | 273 struct pci_raw_ops { |
ian@0 | 274 int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn, |
ian@0 | 275 int reg, int len, u32 *val); |
ian@0 | 276 int (*write)(unsigned int domain, unsigned int bus, unsigned int devfn, |
ian@0 | 277 int reg, int len, u32 val); |
ian@0 | 278 }; |
ian@0 | 279 |
ian@0 | 280 extern struct pci_raw_ops *raw_pci_ops; |
ian@0 | 281 |
ian@0 | 282 struct pci_bus_region { |
ian@0 | 283 unsigned long start; |
ian@0 | 284 unsigned long end; |
ian@0 | 285 }; |
ian@0 | 286 |
ian@0 | 287 struct pci_dynids { |
ian@0 | 288 spinlock_t lock; /* protects list, index */ |
ian@0 | 289 struct list_head list; /* for IDs added at runtime */ |
ian@0 | 290 unsigned int use_driver_data:1; /* pci_driver->driver_data is used */ |
ian@0 | 291 }; |
ian@0 | 292 |
ian@0 | 293 /* ---------------------------------------------------------------- */ |
ian@0 | 294 /** PCI Error Recovery System (PCI-ERS). If a PCI device driver provides |
ian@0 | 295 * a set fof callbacks in struct pci_error_handlers, then that device driver |
ian@0 | 296 * will be notified of PCI bus errors, and will be driven to recovery |
ian@0 | 297 * when an error occurs. |
ian@0 | 298 */ |
ian@0 | 299 |
ian@0 | 300 typedef unsigned int __bitwise pci_ers_result_t; |
ian@0 | 301 |
ian@0 | 302 enum pci_ers_result { |
ian@0 | 303 /* no result/none/not supported in device driver */ |
ian@0 | 304 PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1, |
ian@0 | 305 |
ian@0 | 306 /* Device driver can recover without slot reset */ |
ian@0 | 307 PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2, |
ian@0 | 308 |
ian@0 | 309 /* Device driver wants slot to be reset. */ |
ian@0 | 310 PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3, |
ian@0 | 311 |
ian@0 | 312 /* Device has completely failed, is unrecoverable */ |
ian@0 | 313 PCI_ERS_RESULT_DISCONNECT = (__force pci_ers_result_t) 4, |
ian@0 | 314 |
ian@0 | 315 /* Device driver is fully recovered and operational */ |
ian@0 | 316 PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5, |
ian@0 | 317 }; |
ian@0 | 318 |
ian@0 | 319 /* PCI bus error event callbacks */ |
ian@0 | 320 struct pci_error_handlers |
ian@0 | 321 { |
ian@0 | 322 /* PCI bus error detected on this device */ |
ian@0 | 323 pci_ers_result_t (*error_detected)(struct pci_dev *dev, |
ian@0 | 324 enum pci_channel_state error); |
ian@0 | 325 |
ian@0 | 326 /* MMIO has been re-enabled, but not DMA */ |
ian@0 | 327 pci_ers_result_t (*mmio_enabled)(struct pci_dev *dev); |
ian@0 | 328 |
ian@0 | 329 /* PCI Express link has been reset */ |
ian@0 | 330 pci_ers_result_t (*link_reset)(struct pci_dev *dev); |
ian@0 | 331 |
ian@0 | 332 /* PCI slot has been reset */ |
ian@0 | 333 pci_ers_result_t (*slot_reset)(struct pci_dev *dev); |
ian@0 | 334 |
ian@0 | 335 /* Device driver may resume normal operations */ |
ian@0 | 336 void (*resume)(struct pci_dev *dev); |
ian@0 | 337 }; |
ian@0 | 338 |
ian@0 | 339 /* ---------------------------------------------------------------- */ |
ian@0 | 340 |
ian@0 | 341 struct module; |
ian@0 | 342 struct pci_driver { |
ian@0 | 343 struct list_head node; |
ian@0 | 344 char *name; |
ian@0 | 345 const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */ |
ian@0 | 346 int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ |
ian@0 | 347 void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ |
ian@0 | 348 int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */ |
ian@0 | 349 int (*resume) (struct pci_dev *dev); /* Device woken up */ |
ian@0 | 350 int (*enable_wake) (struct pci_dev *dev, pci_power_t state, int enable); /* Enable wake event */ |
ian@0 | 351 void (*shutdown) (struct pci_dev *dev); |
ian@0 | 352 |
ian@0 | 353 struct pci_error_handlers *err_handler; |
ian@0 | 354 struct device_driver driver; |
ian@0 | 355 struct pci_dynids dynids; |
ian@0 | 356 }; |
ian@0 | 357 |
ian@0 | 358 #define to_pci_driver(drv) container_of(drv,struct pci_driver, driver) |
ian@0 | 359 |
ian@0 | 360 /** |
ian@0 | 361 * PCI_DEVICE - macro used to describe a specific pci device |
ian@0 | 362 * @vend: the 16 bit PCI Vendor ID |
ian@0 | 363 * @dev: the 16 bit PCI Device ID |
ian@0 | 364 * |
ian@0 | 365 * This macro is used to create a struct pci_device_id that matches a |
ian@0 | 366 * specific device. The subvendor and subdevice fields will be set to |
ian@0 | 367 * PCI_ANY_ID. |
ian@0 | 368 */ |
ian@0 | 369 #define PCI_DEVICE(vend,dev) \ |
ian@0 | 370 .vendor = (vend), .device = (dev), \ |
ian@0 | 371 .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID |
ian@0 | 372 |
ian@0 | 373 /** |
ian@0 | 374 * PCI_DEVICE_CLASS - macro used to describe a specific pci device class |
ian@0 | 375 * @dev_class: the class, subclass, prog-if triple for this device |
ian@0 | 376 * @dev_class_mask: the class mask for this device |
ian@0 | 377 * |
ian@0 | 378 * This macro is used to create a struct pci_device_id that matches a |
ian@0 | 379 * specific PCI class. The vendor, device, subvendor, and subdevice |
ian@0 | 380 * fields will be set to PCI_ANY_ID. |
ian@0 | 381 */ |
ian@0 | 382 #define PCI_DEVICE_CLASS(dev_class,dev_class_mask) \ |
ian@0 | 383 .class = (dev_class), .class_mask = (dev_class_mask), \ |
ian@0 | 384 .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \ |
ian@0 | 385 .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID |
ian@0 | 386 |
ian@0 | 387 /* |
ian@0 | 388 * pci_module_init is obsolete, this stays here till we fix up all usages of it |
ian@0 | 389 * in the tree. |
ian@0 | 390 */ |
ian@0 | 391 #define pci_module_init pci_register_driver |
ian@0 | 392 |
ian@0 | 393 /* these external functions are only available when PCI support is enabled */ |
ian@0 | 394 #ifdef CONFIG_PCI |
ian@0 | 395 |
ian@0 | 396 extern struct bus_type pci_bus_type; |
ian@0 | 397 |
ian@0 | 398 /* Do NOT directly access these two variables, unless you are arch specific pci |
ian@0 | 399 * code, or pci core code. */ |
ian@0 | 400 extern struct list_head pci_root_buses; /* list of all known PCI buses */ |
ian@0 | 401 extern struct list_head pci_devices; /* list of all devices */ |
ian@0 | 402 |
ian@0 | 403 void pcibios_fixup_bus(struct pci_bus *); |
ian@0 | 404 int pcibios_enable_device(struct pci_dev *, int mask); |
ian@0 | 405 char *pcibios_setup (char *str); |
ian@0 | 406 |
ian@0 | 407 /* Used only when drivers/pci/setup.c is used */ |
ian@0 | 408 void pcibios_align_resource(void *, struct resource *, resource_size_t, |
ian@0 | 409 resource_size_t); |
ian@0 | 410 void pcibios_update_irq(struct pci_dev *, int irq); |
ian@0 | 411 |
ian@0 | 412 /* Generic PCI functions used internally */ |
ian@0 | 413 |
ian@0 | 414 extern struct pci_bus *pci_find_bus(int domain, int busnr); |
ian@0 | 415 void pci_bus_add_devices(struct pci_bus *bus); |
ian@0 | 416 struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus, struct pci_ops *ops, void *sysdata); |
ian@0 | 417 static inline struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata) |
ian@0 | 418 { |
ian@0 | 419 struct pci_bus *root_bus; |
ian@0 | 420 root_bus = pci_scan_bus_parented(NULL, bus, ops, sysdata); |
ian@0 | 421 if (root_bus) |
ian@0 | 422 pci_bus_add_devices(root_bus); |
ian@0 | 423 return root_bus; |
ian@0 | 424 } |
ian@0 | 425 struct pci_bus *pci_create_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata); |
ian@0 | 426 struct pci_bus * pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr); |
ian@0 | 427 int pci_scan_slot(struct pci_bus *bus, int devfn); |
ian@0 | 428 struct pci_dev * pci_scan_single_device(struct pci_bus *bus, int devfn); |
ian@0 | 429 void pci_device_add(struct pci_dev *dev, struct pci_bus *bus); |
ian@0 | 430 unsigned int pci_scan_child_bus(struct pci_bus *bus); |
ian@0 | 431 void pci_bus_add_device(struct pci_dev *dev); |
ian@0 | 432 void pci_read_bridge_bases(struct pci_bus *child); |
ian@0 | 433 struct resource *pci_find_parent_resource(const struct pci_dev *dev, struct resource *res); |
ian@0 | 434 int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge); |
ian@0 | 435 extern struct pci_dev *pci_dev_get(struct pci_dev *dev); |
ian@0 | 436 extern void pci_dev_put(struct pci_dev *dev); |
ian@0 | 437 extern void pci_remove_bus(struct pci_bus *b); |
ian@0 | 438 extern void pci_remove_bus_device(struct pci_dev *dev); |
ian@0 | 439 void pci_setup_cardbus(struct pci_bus *bus); |
ian@0 | 440 |
ian@0 | 441 /* Generic PCI functions exported to card drivers */ |
ian@0 | 442 |
ian@0 | 443 struct pci_dev *pci_find_device (unsigned int vendor, unsigned int device, const struct pci_dev *from); |
ian@0 | 444 struct pci_dev *pci_find_device_reverse (unsigned int vendor, unsigned int device, const struct pci_dev *from); |
ian@0 | 445 struct pci_dev *pci_find_slot (unsigned int bus, unsigned int devfn); |
ian@0 | 446 int pci_find_capability (struct pci_dev *dev, int cap); |
ian@0 | 447 int pci_find_next_capability (struct pci_dev *dev, u8 pos, int cap); |
ian@0 | 448 int pci_find_ext_capability (struct pci_dev *dev, int cap); |
ian@0 | 449 struct pci_bus * pci_find_next_bus(const struct pci_bus *from); |
ian@0 | 450 |
ian@0 | 451 struct pci_dev *pci_get_device (unsigned int vendor, unsigned int device, struct pci_dev *from); |
ian@0 | 452 struct pci_dev *pci_get_subsys (unsigned int vendor, unsigned int device, |
ian@0 | 453 unsigned int ss_vendor, unsigned int ss_device, |
ian@0 | 454 struct pci_dev *from); |
ian@0 | 455 struct pci_dev *pci_get_slot (struct pci_bus *bus, unsigned int devfn); |
keir@735 | 456 struct pci_dev *pci_get_bus_and_slot(unsigned int bus, unsigned int devfn); |
ian@0 | 457 struct pci_dev *pci_get_class (unsigned int class, struct pci_dev *from); |
ian@0 | 458 int pci_dev_present(const struct pci_device_id *ids); |
ian@0 | 459 |
ian@0 | 460 int pci_bus_read_config_byte (struct pci_bus *bus, unsigned int devfn, int where, u8 *val); |
ian@0 | 461 int pci_bus_read_config_word (struct pci_bus *bus, unsigned int devfn, int where, u16 *val); |
ian@0 | 462 int pci_bus_read_config_dword (struct pci_bus *bus, unsigned int devfn, int where, u32 *val); |
ian@0 | 463 int pci_bus_write_config_byte (struct pci_bus *bus, unsigned int devfn, int where, u8 val); |
ian@0 | 464 int pci_bus_write_config_word (struct pci_bus *bus, unsigned int devfn, int where, u16 val); |
ian@0 | 465 int pci_bus_write_config_dword (struct pci_bus *bus, unsigned int devfn, int where, u32 val); |
ian@0 | 466 |
ian@0 | 467 static inline int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val) |
ian@0 | 468 { |
ian@0 | 469 return pci_bus_read_config_byte (dev->bus, dev->devfn, where, val); |
ian@0 | 470 } |
ian@0 | 471 static inline int pci_read_config_word(struct pci_dev *dev, int where, u16 *val) |
ian@0 | 472 { |
ian@0 | 473 return pci_bus_read_config_word (dev->bus, dev->devfn, where, val); |
ian@0 | 474 } |
ian@0 | 475 static inline int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val) |
ian@0 | 476 { |
ian@0 | 477 return pci_bus_read_config_dword (dev->bus, dev->devfn, where, val); |
ian@0 | 478 } |
ian@0 | 479 static inline int pci_write_config_byte(struct pci_dev *dev, int where, u8 val) |
ian@0 | 480 { |
ian@0 | 481 return pci_bus_write_config_byte (dev->bus, dev->devfn, where, val); |
ian@0 | 482 } |
ian@0 | 483 static inline int pci_write_config_word(struct pci_dev *dev, int where, u16 val) |
ian@0 | 484 { |
ian@0 | 485 return pci_bus_write_config_word (dev->bus, dev->devfn, where, val); |
ian@0 | 486 } |
ian@0 | 487 static inline int pci_write_config_dword(struct pci_dev *dev, int where, u32 val) |
ian@0 | 488 { |
ian@0 | 489 return pci_bus_write_config_dword (dev->bus, dev->devfn, where, val); |
ian@0 | 490 } |
ian@0 | 491 |
ian@0 | 492 int pci_enable_device(struct pci_dev *dev); |
ian@0 | 493 int pci_enable_device_bars(struct pci_dev *dev, int mask); |
ian@0 | 494 void pci_disable_device(struct pci_dev *dev); |
ian@0 | 495 void pci_set_master(struct pci_dev *dev); |
ian@0 | 496 #define HAVE_PCI_SET_MWI |
ian@0 | 497 int pci_set_mwi(struct pci_dev *dev); |
ian@0 | 498 void pci_clear_mwi(struct pci_dev *dev); |
ian@0 | 499 void pci_intx(struct pci_dev *dev, int enable); |
ian@0 | 500 int pci_set_dma_mask(struct pci_dev *dev, u64 mask); |
ian@0 | 501 int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask); |
ian@0 | 502 void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno); |
ian@0 | 503 int pci_assign_resource(struct pci_dev *dev, int i); |
ian@0 | 504 int pci_assign_resource_fixed(struct pci_dev *dev, int i); |
ian@0 | 505 void pci_restore_bars(struct pci_dev *dev); |
ian@0 | 506 |
ian@0 | 507 /* ROM control related routines */ |
ian@0 | 508 void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size); |
ian@0 | 509 void __iomem __must_check *pci_map_rom_copy(struct pci_dev *pdev, size_t *size); |
ian@0 | 510 void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom); |
ian@0 | 511 void pci_remove_rom(struct pci_dev *pdev); |
ian@0 | 512 |
ian@0 | 513 /* Power management related routines */ |
ian@0 | 514 int pci_save_state(struct pci_dev *dev); |
ian@0 | 515 int pci_restore_state(struct pci_dev *dev); |
ian@0 | 516 int pci_set_power_state(struct pci_dev *dev, pci_power_t state); |
ian@0 | 517 pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state); |
ian@0 | 518 int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable); |
ian@0 | 519 |
ian@0 | 520 /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */ |
ian@0 | 521 void pci_bus_assign_resources(struct pci_bus *bus); |
ian@0 | 522 void pci_bus_size_bridges(struct pci_bus *bus); |
ian@0 | 523 int pci_claim_resource(struct pci_dev *, int); |
ian@0 | 524 void pci_assign_unassigned_resources(void); |
ian@0 | 525 void pdev_enable_device(struct pci_dev *); |
ian@0 | 526 void pdev_sort_resources(struct pci_dev *, struct resource_list *); |
ian@0 | 527 void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *), |
ian@0 | 528 int (*)(struct pci_dev *, u8, u8)); |
ian@0 | 529 #define HAVE_PCI_REQ_REGIONS 2 |
ian@0 | 530 int pci_request_regions(struct pci_dev *, const char *); |
ian@0 | 531 void pci_release_regions(struct pci_dev *); |
ian@0 | 532 int pci_request_region(struct pci_dev *, int, const char *); |
ian@0 | 533 void pci_release_region(struct pci_dev *, int); |
ian@0 | 534 |
ian@0 | 535 /* drivers/pci/bus.c */ |
ian@0 | 536 int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, |
ian@0 | 537 resource_size_t size, resource_size_t align, |
ian@0 | 538 resource_size_t min, unsigned int type_mask, |
ian@0 | 539 void (*alignf)(void *, struct resource *, |
ian@0 | 540 resource_size_t, resource_size_t), |
ian@0 | 541 void *alignf_data); |
ian@0 | 542 void pci_enable_bridges(struct pci_bus *bus); |
ian@0 | 543 |
ian@0 | 544 /* Proper probing supporting hot-pluggable devices */ |
ian@0 | 545 int __pci_register_driver(struct pci_driver *, struct module *); |
ian@0 | 546 static inline int pci_register_driver(struct pci_driver *driver) |
ian@0 | 547 { |
ian@0 | 548 return __pci_register_driver(driver, THIS_MODULE); |
ian@0 | 549 } |
ian@0 | 550 |
ian@0 | 551 void pci_unregister_driver(struct pci_driver *); |
ian@0 | 552 void pci_remove_behind_bridge(struct pci_dev *); |
ian@0 | 553 struct pci_driver *pci_dev_driver(const struct pci_dev *); |
ian@0 | 554 const struct pci_device_id *pci_match_device(struct pci_driver *drv, struct pci_dev *dev); |
ian@0 | 555 const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, struct pci_dev *dev); |
ian@0 | 556 int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass); |
ian@0 | 557 |
ian@0 | 558 void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *), |
ian@0 | 559 void *userdata); |
ian@0 | 560 int pci_cfg_space_size(struct pci_dev *dev); |
ian@0 | 561 unsigned char pci_bus_max_busnr(struct pci_bus* bus); |
ian@0 | 562 |
ian@0 | 563 /* kmem_cache style wrapper around pci_alloc_consistent() */ |
ian@0 | 564 |
ian@0 | 565 #include <linux/dmapool.h> |
ian@0 | 566 |
ian@0 | 567 #define pci_pool dma_pool |
ian@0 | 568 #define pci_pool_create(name, pdev, size, align, allocation) \ |
ian@0 | 569 dma_pool_create(name, &pdev->dev, size, align, allocation) |
ian@0 | 570 #define pci_pool_destroy(pool) dma_pool_destroy(pool) |
ian@0 | 571 #define pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle) |
ian@0 | 572 #define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr) |
ian@0 | 573 |
ian@0 | 574 enum pci_dma_burst_strategy { |
ian@0 | 575 PCI_DMA_BURST_INFINITY, /* make bursts as large as possible, |
ian@0 | 576 strategy_parameter is N/A */ |
ian@0 | 577 PCI_DMA_BURST_BOUNDARY, /* disconnect at every strategy_parameter |
ian@0 | 578 byte boundaries */ |
ian@0 | 579 PCI_DMA_BURST_MULTIPLE, /* disconnect at some multiple of |
ian@0 | 580 strategy_parameter byte boundaries */ |
ian@0 | 581 }; |
ian@0 | 582 |
ian@0 | 583 #if defined(CONFIG_ISA) || defined(CONFIG_EISA) |
ian@0 | 584 extern struct pci_dev *isa_bridge; |
ian@0 | 585 #endif |
ian@0 | 586 |
ian@0 | 587 struct msix_entry { |
ian@0 | 588 u16 vector; /* kernel uses to write allocated vector */ |
ian@0 | 589 u16 entry; /* driver uses to specify entry, OS writes */ |
ian@0 | 590 }; |
ian@0 | 591 |
ian@0 | 592 #ifndef CONFIG_PCI_MSI |
ian@0 | 593 static inline void pci_scan_msi_device(struct pci_dev *dev) {} |
ian@0 | 594 static inline int pci_enable_msi(struct pci_dev *dev) {return -1;} |
ian@0 | 595 static inline void pci_disable_msi(struct pci_dev *dev) {} |
ian@0 | 596 static inline int pci_enable_msix(struct pci_dev* dev, |
ian@0 | 597 struct msix_entry *entries, int nvec) {return -1;} |
ian@0 | 598 static inline void pci_disable_msix(struct pci_dev *dev) {} |
ian@0 | 599 static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev) {} |
keir@619 | 600 #ifdef CONFIG_XEN |
keir@619 | 601 #define register_msi_get_owner(func) 0 |
keir@619 | 602 #define unregister_msi_get_owner(func) 0 |
keir@619 | 603 #endif |
ian@0 | 604 #else |
ian@0 | 605 extern void pci_scan_msi_device(struct pci_dev *dev); |
ian@0 | 606 extern int pci_enable_msi(struct pci_dev *dev); |
ian@0 | 607 extern void pci_disable_msi(struct pci_dev *dev); |
ian@0 | 608 extern int pci_enable_msix(struct pci_dev* dev, |
ian@0 | 609 struct msix_entry *entries, int nvec); |
ian@0 | 610 extern void pci_disable_msix(struct pci_dev *dev); |
ian@0 | 611 extern void msi_remove_pci_irq_vectors(struct pci_dev *dev); |
keir@619 | 612 #ifdef CONFIG_XEN |
keir@619 | 613 extern int register_msi_get_owner(int (*func)(struct pci_dev *dev)); |
keir@619 | 614 extern int unregister_msi_get_owner(int (*func)(struct pci_dev *dev)); |
keir@619 | 615 #endif |
ian@0 | 616 #endif |
ian@0 | 617 |
ian@0 | 618 extern void pci_block_user_cfg_access(struct pci_dev *dev); |
ian@0 | 619 extern void pci_unblock_user_cfg_access(struct pci_dev *dev); |
ian@0 | 620 |
ian@0 | 621 /* |
ian@0 | 622 * PCI domain support. Sometimes called PCI segment (eg by ACPI), |
ian@0 | 623 * a PCI domain is defined to be a set of PCI busses which share |
ian@0 | 624 * configuration space. |
ian@0 | 625 */ |
ian@0 | 626 #ifndef CONFIG_PCI_DOMAINS |
ian@0 | 627 static inline int pci_domain_nr(struct pci_bus *bus) { return 0; } |
ian@0 | 628 static inline int pci_proc_domain(struct pci_bus *bus) |
ian@0 | 629 { |
ian@0 | 630 return 0; |
ian@0 | 631 } |
ian@0 | 632 #endif |
ian@0 | 633 |
ian@0 | 634 #else /* CONFIG_PCI is not enabled */ |
ian@0 | 635 |
ian@0 | 636 /* |
ian@0 | 637 * If the system does not have PCI, clearly these return errors. Define |
ian@0 | 638 * these as simple inline functions to avoid hair in drivers. |
ian@0 | 639 */ |
ian@0 | 640 |
ian@0 | 641 #define _PCI_NOP(o,s,t) \ |
ian@0 | 642 static inline int pci_##o##_config_##s (struct pci_dev *dev, int where, t val) \ |
ian@0 | 643 { return PCIBIOS_FUNC_NOT_SUPPORTED; } |
ian@0 | 644 #define _PCI_NOP_ALL(o,x) _PCI_NOP(o,byte,u8 x) \ |
ian@0 | 645 _PCI_NOP(o,word,u16 x) \ |
ian@0 | 646 _PCI_NOP(o,dword,u32 x) |
ian@0 | 647 _PCI_NOP_ALL(read, *) |
ian@0 | 648 _PCI_NOP_ALL(write,) |
ian@0 | 649 |
ian@0 | 650 static inline struct pci_dev *pci_find_device(unsigned int vendor, unsigned int device, const struct pci_dev *from) |
ian@0 | 651 { return NULL; } |
ian@0 | 652 |
ian@0 | 653 static inline struct pci_dev *pci_find_slot(unsigned int bus, unsigned int devfn) |
ian@0 | 654 { return NULL; } |
ian@0 | 655 |
keir@735 | 656 |
keir@735 | 657 static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus, unsigned int devfn) |
keir@735 | 658 { |
keir@735 | 659 return NULL; |
keir@735 | 660 } |
ian@0 | 661 static inline struct pci_dev *pci_get_device (unsigned int vendor, unsigned int device, struct pci_dev *from) |
ian@0 | 662 { return NULL; } |
ian@0 | 663 |
ian@0 | 664 static inline struct pci_dev *pci_get_subsys (unsigned int vendor, unsigned int device, |
ian@0 | 665 unsigned int ss_vendor, unsigned int ss_device, struct pci_dev *from) |
ian@0 | 666 { return NULL; } |
ian@0 | 667 |
ian@0 | 668 static inline struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from) |
ian@0 | 669 { return NULL; } |
ian@0 | 670 |
ian@0 | 671 #define pci_dev_present(ids) (0) |
ian@0 | 672 #define pci_dev_put(dev) do { } while (0) |
ian@0 | 673 |
ian@0 | 674 static inline void pci_set_master(struct pci_dev *dev) { } |
ian@0 | 675 static inline int pci_enable_device(struct pci_dev *dev) { return -EIO; } |
ian@0 | 676 static inline void pci_disable_device(struct pci_dev *dev) { } |
ian@0 | 677 static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) { return -EIO; } |
ian@0 | 678 static inline int pci_assign_resource(struct pci_dev *dev, int i) { return -EBUSY;} |
ian@0 | 679 static inline int __pci_register_driver(struct pci_driver *drv, struct module *owner) { return 0;} |
ian@0 | 680 static inline int pci_register_driver(struct pci_driver *drv) { return 0;} |
ian@0 | 681 static inline void pci_unregister_driver(struct pci_driver *drv) { } |
ian@0 | 682 static inline int pci_find_capability (struct pci_dev *dev, int cap) {return 0; } |
ian@0 | 683 static inline int pci_find_next_capability (struct pci_dev *dev, u8 post, int cap) { return 0; } |
ian@0 | 684 static inline int pci_find_ext_capability (struct pci_dev *dev, int cap) {return 0; } |
ian@0 | 685 static inline const struct pci_device_id *pci_match_device(const struct pci_device_id *ids, const struct pci_dev *dev) { return NULL; } |
ian@0 | 686 |
ian@0 | 687 /* Power management related routines */ |
ian@0 | 688 static inline int pci_save_state(struct pci_dev *dev) { return 0; } |
ian@0 | 689 static inline int pci_restore_state(struct pci_dev *dev) { return 0; } |
ian@0 | 690 static inline int pci_set_power_state(struct pci_dev *dev, pci_power_t state) { return 0; } |
ian@0 | 691 static inline pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) { return PCI_D0; } |
ian@0 | 692 static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) { return 0; } |
ian@0 | 693 |
ian@0 | 694 #define isa_bridge ((struct pci_dev *)NULL) |
ian@0 | 695 |
ian@0 | 696 #define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0) |
ian@0 | 697 |
ian@0 | 698 static inline void pci_block_user_cfg_access(struct pci_dev *dev) { } |
ian@0 | 699 static inline void pci_unblock_user_cfg_access(struct pci_dev *dev) { } |
ian@0 | 700 |
ian@0 | 701 #endif /* CONFIG_PCI */ |
ian@0 | 702 |
ian@0 | 703 /* Include architecture-dependent settings and functions */ |
ian@0 | 704 |
ian@0 | 705 #include <asm/pci.h> |
ian@0 | 706 |
ian@0 | 707 /* these helpers provide future and backwards compatibility |
ian@0 | 708 * for accessing popular PCI BAR info */ |
ian@0 | 709 #define pci_resource_start(dev,bar) ((dev)->resource[(bar)].start) |
ian@0 | 710 #define pci_resource_end(dev,bar) ((dev)->resource[(bar)].end) |
ian@0 | 711 #define pci_resource_flags(dev,bar) ((dev)->resource[(bar)].flags) |
ian@0 | 712 #define pci_resource_len(dev,bar) \ |
ian@0 | 713 ((pci_resource_start((dev),(bar)) == 0 && \ |
ian@0 | 714 pci_resource_end((dev),(bar)) == \ |
ian@0 | 715 pci_resource_start((dev),(bar))) ? 0 : \ |
ian@0 | 716 \ |
ian@0 | 717 (pci_resource_end((dev),(bar)) - \ |
ian@0 | 718 pci_resource_start((dev),(bar)) + 1)) |
ian@0 | 719 |
ian@0 | 720 /* Similar to the helpers above, these manipulate per-pci_dev |
ian@0 | 721 * driver-specific data. They are really just a wrapper around |
ian@0 | 722 * the generic device structure functions of these calls. |
ian@0 | 723 */ |
ian@0 | 724 static inline void *pci_get_drvdata (struct pci_dev *pdev) |
ian@0 | 725 { |
ian@0 | 726 return dev_get_drvdata(&pdev->dev); |
ian@0 | 727 } |
ian@0 | 728 |
ian@0 | 729 static inline void pci_set_drvdata (struct pci_dev *pdev, void *data) |
ian@0 | 730 { |
ian@0 | 731 dev_set_drvdata(&pdev->dev, data); |
ian@0 | 732 } |
ian@0 | 733 |
ian@0 | 734 /* If you want to know what to call your pci_dev, ask this function. |
ian@0 | 735 * Again, it's a wrapper around the generic device. |
ian@0 | 736 */ |
ian@0 | 737 static inline char *pci_name(struct pci_dev *pdev) |
ian@0 | 738 { |
ian@0 | 739 return pdev->dev.bus_id; |
ian@0 | 740 } |
ian@0 | 741 |
ian@0 | 742 |
ian@0 | 743 /* Some archs don't want to expose struct resource to userland as-is |
ian@0 | 744 * in sysfs and /proc |
ian@0 | 745 */ |
ian@0 | 746 #ifndef HAVE_ARCH_PCI_RESOURCE_TO_USER |
ian@0 | 747 static inline void pci_resource_to_user(const struct pci_dev *dev, int bar, |
ian@0 | 748 const struct resource *rsrc, resource_size_t *start, |
ian@0 | 749 resource_size_t *end) |
ian@0 | 750 { |
ian@0 | 751 *start = rsrc->start; |
ian@0 | 752 *end = rsrc->end; |
ian@0 | 753 } |
ian@0 | 754 #endif /* HAVE_ARCH_PCI_RESOURCE_TO_USER */ |
ian@0 | 755 |
ian@0 | 756 |
ian@0 | 757 /* |
ian@0 | 758 * The world is not perfect and supplies us with broken PCI devices. |
ian@0 | 759 * For at least a part of these bugs we need a work-around, so both |
ian@0 | 760 * generic (drivers/pci/quirks.c) and per-architecture code can define |
ian@0 | 761 * fixup hooks to be called for particular buggy devices. |
ian@0 | 762 */ |
ian@0 | 763 |
ian@0 | 764 struct pci_fixup { |
ian@0 | 765 u16 vendor, device; /* You can use PCI_ANY_ID here of course */ |
ian@0 | 766 void (*hook)(struct pci_dev *dev); |
ian@0 | 767 }; |
ian@0 | 768 |
ian@0 | 769 enum pci_fixup_pass { |
ian@0 | 770 pci_fixup_early, /* Before probing BARs */ |
ian@0 | 771 pci_fixup_header, /* After reading configuration header */ |
ian@0 | 772 pci_fixup_final, /* Final phase of device fixups */ |
ian@0 | 773 pci_fixup_enable, /* pci_enable_device() time */ |
ian@0 | 774 }; |
ian@0 | 775 |
ian@0 | 776 /* Anonymous variables would be nice... */ |
ian@0 | 777 #define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook) \ |
ian@0 | 778 static const struct pci_fixup __pci_fixup_##name __attribute_used__ \ |
ian@0 | 779 __attribute__((__section__(#section))) = { vendor, device, hook }; |
ian@0 | 780 #define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook) \ |
ian@0 | 781 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early, \ |
ian@0 | 782 vendor##device##hook, vendor, device, hook) |
ian@0 | 783 #define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook) \ |
ian@0 | 784 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header, \ |
ian@0 | 785 vendor##device##hook, vendor, device, hook) |
ian@0 | 786 #define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook) \ |
ian@0 | 787 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final, \ |
ian@0 | 788 vendor##device##hook, vendor, device, hook) |
ian@0 | 789 #define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook) \ |
ian@0 | 790 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable, \ |
ian@0 | 791 vendor##device##hook, vendor, device, hook) |
ian@0 | 792 |
ian@0 | 793 |
ian@0 | 794 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev); |
ian@0 | 795 |
ian@0 | 796 extern int pci_pci_problems; |
ian@0 | 797 #define PCIPCI_FAIL 1 |
ian@0 | 798 #define PCIPCI_TRITON 2 |
ian@0 | 799 #define PCIPCI_NATOMA 4 |
ian@0 | 800 #define PCIPCI_VIAETBF 8 |
ian@0 | 801 #define PCIPCI_VSFX 16 |
ian@0 | 802 #define PCIPCI_ALIMAGIK 32 |
ian@0 | 803 |
keir@769 | 804 #ifdef CONFIG_PCI_GUESTDEV |
keir@769 | 805 int pci_is_guestdev(struct pci_dev *dev); |
keir@769 | 806 #endif /* CONFIG_PCI_GUESTDEV */ |
keir@769 | 807 |
ian@0 | 808 #endif /* __KERNEL__ */ |
ian@0 | 809 #endif /* LINUX_PCI_H */ |