pci.h 35.8 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
/*
 *	pci.h
 *
 *	PCI defines and function prototypes
 *	Copyright 1994, Drew Eckhardt
 *	Copyright 1997--1999 Martin Mares <mj@ucw.cz>
 *
 *	For more information, please consult the following manuals (look at
 *	http://www.pcisig.com/ for how to get them):
 *
 *	PCI BIOS Specification
 *	PCI Local Bus Specification
 *	PCI to PCI Bridge Specification
 *	PCI System Design Guide
 */

#ifndef LINUX_PCI_H
#define LINUX_PCI_H

A
Alex Chiang 已提交
20
#include <linux/pci_regs.h>	/* The pci register defines */
L
Linus Torvalds 已提交
21 22 23 24 25 26 27 28 29

/*
 * The PCI interface treats multi-function devices as independent
 * devices.  The slot/function address of each device is encoded
 * in a single byte as follows:
 *
 *	7:3 = slot
 *	2:0 = function
 */
30
#define PCI_DEVFN(slot, func)	((((slot) & 0x1f) << 3) | ((func) & 0x07))
L
Linus Torvalds 已提交
31 32 33 34 35 36 37 38 39 40 41 42
#define PCI_SLOT(devfn)		(((devfn) >> 3) & 0x1f)
#define PCI_FUNC(devfn)		((devfn) & 0x07)

/* Ioctls for /proc/bus/pci/X/Y nodes. */
#define PCIIOC_BASE		('P' << 24 | 'C' << 16 | 'I' << 8)
#define PCIIOC_CONTROLLER	(PCIIOC_BASE | 0x00)	/* Get controller for PCI device. */
#define PCIIOC_MMAP_IS_IO	(PCIIOC_BASE | 0x01)	/* Set mmap state to I/O space. */
#define PCIIOC_MMAP_IS_MEM	(PCIIOC_BASE | 0x02)	/* Set mmap state to MEM space. */
#define PCIIOC_WRITE_COMBINE	(PCIIOC_BASE | 0x03)	/* Enable/disable write-combining. */

#ifdef __KERNEL__

43 44
#include <linux/mod_devicetable.h>

L
Linus Torvalds 已提交
45
#include <linux/types.h>
46
#include <linux/init.h>
L
Linus Torvalds 已提交
47 48
#include <linux/ioport.h>
#include <linux/list.h>
49
#include <linux/compiler.h>
L
Linus Torvalds 已提交
50
#include <linux/errno.h>
A
Alex Chiang 已提交
51
#include <linux/kobject.h>
52
#include <asm/atomic.h>
L
Linus Torvalds 已提交
53 54
#include <linux/device.h>

55 56 57
/* Include the ID list */
#include <linux/pci_ids.h>

A
Alex Chiang 已提交
58 59 60 61 62 63 64 65 66
/* pci_slot represents a physical slot */
struct pci_slot {
	struct pci_bus *bus;		/* The bus this slot is on */
	struct list_head list;		/* node in list of slots on this bus */
	struct hotplug_slot *hotplug;	/* Hotplug info (migrate over time) */
	unsigned char number;		/* PCI_SLOT(pci_dev->devfn) */
	struct kobject kobj;
};

L
Linus Torvalds 已提交
67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82
/* File state for mmap()s on /proc/bus/pci/X/Y */
enum pci_mmap_state {
	pci_mmap_io,
	pci_mmap_mem
};

/* This defines the direction arg to the DMA mapping routines. */
#define PCI_DMA_BIDIRECTIONAL	0
#define PCI_DMA_TODEVICE	1
#define PCI_DMA_FROMDEVICE	2
#define PCI_DMA_NONE		3

#define DEVICE_COUNT_RESOURCE	12

typedef int __bitwise pci_power_t;

83 84 85
#define PCI_D0		((pci_power_t __force) 0)
#define PCI_D1		((pci_power_t __force) 1)
#define PCI_D2		((pci_power_t __force) 2)
L
Linus Torvalds 已提交
86 87
#define PCI_D3hot	((pci_power_t __force) 3)
#define PCI_D3cold	((pci_power_t __force) 4)
88
#define PCI_UNKNOWN	((pci_power_t __force) 5)
89
#define PCI_POWER_ERROR	((pci_power_t __force) -1)
L
Linus Torvalds 已提交
90

91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107
/** The pci_channel state describes connectivity between the CPU and
 *  the pci device.  If some PCI bus between here and the pci device
 *  has crashed or locked up, this info is reflected here.
 */
typedef unsigned int __bitwise pci_channel_state_t;

enum pci_channel_state {
	/* I/O channel is in normal state */
	pci_channel_io_normal = (__force pci_channel_state_t) 1,

	/* I/O to channel is blocked */
	pci_channel_io_frozen = (__force pci_channel_state_t) 2,

	/* PCI card is dead */
	pci_channel_io_perm_failure = (__force pci_channel_state_t) 3,
};

B
Brian King 已提交
108 109 110 111 112 113 114 115 116 117 118 119 120
typedef unsigned int __bitwise pcie_reset_state_t;

enum pcie_reset_state {
	/* Reset is NOT asserted (Use to deassert reset) */
	pcie_deassert_reset = (__force pcie_reset_state_t) 1,

	/* Use #PERST to reset PCI-E device */
	pcie_warm_reset = (__force pcie_reset_state_t) 2,

	/* Use PCI-E Hot Reset to reset device */
	pcie_hot_reset = (__force pcie_reset_state_t) 3
};

121 122 123 124 125 126 127 128
typedef unsigned short __bitwise pci_dev_flags_t;
enum pci_dev_flags {
	/* INTX_DISABLE in PCI_COMMAND register disables MSI
	 * generation too.
	 */
	PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG = (__force pci_dev_flags_t) 1,
};

129 130
typedef unsigned short __bitwise pci_bus_flags_t;
enum pci_bus_flags {
131 132
	PCI_BUS_FLAGS_NO_MSI   = (__force pci_bus_flags_t) 1,
	PCI_BUS_FLAGS_NO_MMRBC = (__force pci_bus_flags_t) 2,
133 134
};

135 136 137 138 139 140
struct pci_cap_saved_state {
	struct hlist_node next;
	char cap_nr;
	u32 data[0];
};

S
Shaohua Li 已提交
141
struct pcie_link_state;
142 143
struct pci_vpd;

L
Linus Torvalds 已提交
144 145 146 147 148 149 150 151 152 153
/*
 * The pci_dev structure is used to describe PCI devices.
 */
struct pci_dev {
	struct list_head bus_list;	/* node in per-bus list */
	struct pci_bus	*bus;		/* bus this device is on */
	struct pci_bus	*subordinate;	/* bus this device bridges to */

	void		*sysdata;	/* hook for sys-specific extension */
	struct proc_dir_entry *procent;	/* device entry in /proc/bus/pci */
A
Alex Chiang 已提交
154
	struct pci_slot	*slot;		/* Physical slot this device is in */
L
Linus Torvalds 已提交
155 156 157 158 159 160 161

	unsigned int	devfn;		/* encoded device & function index */
	unsigned short	vendor;
	unsigned short	device;
	unsigned short	subsystem_vendor;
	unsigned short	subsystem_device;
	unsigned int	class;		/* 3 bytes: (base,sub,prog-if) */
A
Auke Kok 已提交
162
	u8		revision;	/* PCI revision, low byte of class word */
L
Linus Torvalds 已提交
163
	u8		hdr_type;	/* PCI header type (`multi' flag masked out) */
164
	u8		pcie_type;	/* PCI-E device/port type */
L
Linus Torvalds 已提交
165
	u8		rom_base_reg;	/* which config register controls the ROM */
166
	u8		pin;  		/* which interrupt pin this device uses */
L
Linus Torvalds 已提交
167 168 169 170 171 172 173 174

	struct pci_driver *driver;	/* which driver has allocated this device */
	u64		dma_mask;	/* Mask of the bits of bus address this
					   device implements.  Normally this is
					   0xffffffff.  You only need to change
					   this if your device has broken DMA
					   or supports 64-bit transfers.  */

175 176
	struct device_dma_parameters dma_parms;

L
Linus Torvalds 已提交
177 178 179 180
	pci_power_t     current_state;  /* Current operating state. In ACPI-speak,
					   this is D0-D3, D0 being fully functional,
					   and D3 being off. */

S
Shaohua Li 已提交
181 182 183 184
#ifdef CONFIG_PCIEASPM
	struct pcie_link_state	*link_state;	/* ASPM link state. */
#endif

185
	pci_channel_state_t error_state;	/* current connectivity state */
L
Linus Torvalds 已提交
186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
	struct	device	dev;		/* Generic device interface */

	int		cfg_size;	/* Size of configuration space */

	/*
	 * Instead of touching interrupt line and base address registers
	 * directly, use the values stored here. They might be different!
	 */
	unsigned int	irq;
	struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */

	/* These fields are used by common fixups */
	unsigned int	transparent:1;	/* Transparent PCI bridge */
	unsigned int	multifunction:1;/* Part of multi-function device */
	/* keep track of device state */
201
	unsigned int	is_added:1;
L
Linus Torvalds 已提交
202
	unsigned int	is_busmaster:1; /* device is busmaster */
203
	unsigned int	no_msi:1;	/* device may not use msi */
204
	unsigned int	no_d1d2:1;   /* only allow d0 or d3 */
205
	unsigned int	block_ucfg_access:1;	/* userspace config space access is blocked */
206
	unsigned int	broken_parity_status:1;	/* Device generates false positive parity */
207 208
	unsigned int 	msi_enabled:1;
	unsigned int	msix_enabled:1;
T
Tejun Heo 已提交
209
	unsigned int	is_managed:1;
210
	unsigned int	is_pcie:1;
211
	pci_dev_flags_t dev_flags;
212
	atomic_t	enable_cnt;	/* pci_enable_device has been called */
213

L
Linus Torvalds 已提交
214
	u32		saved_config_space[16]; /* config space saved at suspend time */
215
	struct hlist_head saved_cap_space;
L
Linus Torvalds 已提交
216 217 218
	struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */
	int rom_attr_enabled;		/* has display of the rom attribute been enabled? */
	struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */
E
Eric W. Biederman 已提交
219
#ifdef CONFIG_PCI_MSI
220
	struct list_head msi_list;
E
Eric W. Biederman 已提交
221
#endif
222
	struct pci_vpd *vpd;
L
Linus Torvalds 已提交
223 224
};

225 226
extern struct pci_dev *alloc_pci_dev(void);

L
Linus Torvalds 已提交
227 228 229 230
#define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list)
#define	to_pci_dev(n) container_of(n, struct pci_dev, dev)
#define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)

231 232 233 234 235
static inline int pci_channel_offline(struct pci_dev *pdev)
{
	return (pdev->error_state != pci_channel_io_normal);
}

236
static inline struct pci_cap_saved_state *pci_find_saved_cap(
237
	struct pci_dev *pci_dev, char cap)
238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254
{
	struct pci_cap_saved_state *tmp;
	struct hlist_node *pos;

	hlist_for_each_entry(tmp, pos, &pci_dev->saved_cap_space, next) {
		if (tmp->cap_nr == cap)
			return tmp;
	}
	return NULL;
}

static inline void pci_add_saved_cap(struct pci_dev *pci_dev,
	struct pci_cap_saved_state *new_cap)
{
	hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space);
}

L
Linus Torvalds 已提交
255 256 257 258 259 260 261 262
/*
 *  For PCI devices, the region numbers are assigned this way:
 *
 *	0-5	standard PCI regions
 *	6	expansion ROM
 *	7-10	bridges: address space assigned to buses behind the bridge
 */

263 264 265
#define PCI_ROM_RESOURCE	6
#define PCI_BRIDGE_RESOURCES	7
#define PCI_NUM_RESOURCES	11
L
Linus Torvalds 已提交
266 267

#ifndef PCI_BUS_NUM_RESOURCES
268
#define PCI_BUS_NUM_RESOURCES	16
L
Linus Torvalds 已提交
269
#endif
270 271

#define PCI_REGION_FLAG_MASK	0x0fU	/* These bits of resource flags tell us the PCI region flags */
L
Linus Torvalds 已提交
272 273 274 275 276 277 278

struct pci_bus {
	struct list_head node;		/* node in list of buses */
	struct pci_bus	*parent;	/* parent bus this bridge is on */
	struct list_head children;	/* list of child buses */
	struct list_head devices;	/* list of devices on this bus */
	struct pci_dev	*self;		/* bridge device as seen by parent */
A
Alex Chiang 已提交
279
	struct list_head slots;		/* list of slots on this bus */
L
Linus Torvalds 已提交
280 281 282 283 284 285 286 287 288 289 290 291 292 293 294
	struct resource	*resource[PCI_BUS_NUM_RESOURCES];
					/* address space routed to this bus */

	struct pci_ops	*ops;		/* configuration access functions */
	void		*sysdata;	/* hook for sys-specific extension */
	struct proc_dir_entry *procdir;	/* directory entry in /proc/bus/pci */

	unsigned char	number;		/* bus number */
	unsigned char	primary;	/* number of primary bridge */
	unsigned char	secondary;	/* number of secondary bridge */
	unsigned char	subordinate;	/* max number of subordinate buses */

	char		name[48];

	unsigned short  bridge_ctl;	/* manage NO_ISA/FBB/et al behaviors */
295
	pci_bus_flags_t bus_flags;	/* Inherited by child busses */
L
Linus Torvalds 已提交
296
	struct device		*bridge;
297
	struct device		dev;
L
Linus Torvalds 已提交
298 299
	struct bin_attribute	*legacy_io; /* legacy I/O for this bus */
	struct bin_attribute	*legacy_mem; /* legacy mem */
300
	unsigned int		is_added:1;
L
Linus Torvalds 已提交
301 302 303
};

#define pci_bus_b(n)	list_entry(n, struct pci_bus, node)
304
#define to_pci_bus(n)	container_of(n, struct pci_bus, dev)
L
Linus Torvalds 已提交
305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323

/*
 * Error values that may be returned by PCI functions.
 */
#define PCIBIOS_SUCCESSFUL		0x00
#define PCIBIOS_FUNC_NOT_SUPPORTED	0x81
#define PCIBIOS_BAD_VENDOR_ID		0x83
#define PCIBIOS_DEVICE_NOT_FOUND	0x86
#define PCIBIOS_BAD_REGISTER_NUMBER	0x87
#define PCIBIOS_SET_FAILED		0x88
#define PCIBIOS_BUFFER_TOO_SMALL	0x89

/* Low-level architecture-dependent routines */

struct pci_ops {
	int (*read)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val);
	int (*write)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val);
};

324 325 326 327 328 329 330 331
/*
 * ACPI needs to be able to access PCI config space before we've done a
 * PCI bus scan and created pci_bus structures.
 */
extern int raw_pci_read(unsigned int domain, unsigned int bus,
			unsigned int devfn, int reg, int len, u32 *val);
extern int raw_pci_write(unsigned int domain, unsigned int bus,
			unsigned int devfn, int reg, int len, u32 val);
L
Linus Torvalds 已提交
332 333

struct pci_bus_region {
334 335
	resource_size_t start;
	resource_size_t end;
L
Linus Torvalds 已提交
336 337 338 339 340
};

struct pci_dynids {
	spinlock_t lock;            /* protects list, index */
	struct list_head list;      /* for IDs added at runtime */
W
Wang Chen 已提交
341
	unsigned int use_driver_data:1; /* pci_device_id->driver_data is used */
L
Linus Torvalds 已提交
342 343
};

344 345
/* ---------------------------------------------------------------- */
/** PCI Error Recovery System (PCI-ERS).  If a PCI device driver provides
346
 *  a set of callbacks in struct pci_error_handlers, then that device driver
347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370
 *  will be notified of PCI bus errors, and will be driven to recovery
 *  when an error occurs.
 */

typedef unsigned int __bitwise pci_ers_result_t;

enum pci_ers_result {
	/* no result/none/not supported in device driver */
	PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1,

	/* Device driver can recover without slot reset */
	PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2,

	/* Device driver wants slot to be reset. */
	PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3,

	/* Device has completely failed, is unrecoverable */
	PCI_ERS_RESULT_DISCONNECT = (__force pci_ers_result_t) 4,

	/* Device driver is fully recovered and operational */
	PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5,
};

/* PCI bus error event callbacks */
371
struct pci_error_handlers {
372 373
	/* PCI bus error detected on this device */
	pci_ers_result_t (*error_detected)(struct pci_dev *dev,
374
					   enum pci_channel_state error);
375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390

	/* MMIO has been re-enabled, but not DMA */
	pci_ers_result_t (*mmio_enabled)(struct pci_dev *dev);

	/* PCI Express link has been reset */
	pci_ers_result_t (*link_reset)(struct pci_dev *dev);

	/* PCI slot has been reset */
	pci_ers_result_t (*slot_reset)(struct pci_dev *dev);

	/* Device driver may resume normal operations */
	void (*resume)(struct pci_dev *dev);
};

/* ---------------------------------------------------------------- */

L
Linus Torvalds 已提交
391 392 393 394 395 396 397 398
struct module;
struct pci_driver {
	struct list_head node;
	char *name;
	const struct pci_device_id *id_table;	/* must be non-NULL for probe to be called */
	int  (*probe)  (struct pci_dev *dev, const struct pci_device_id *id);	/* New device inserted */
	void (*remove) (struct pci_dev *dev);	/* Device removed (NULL if not a hot-plug capable driver) */
	int  (*suspend) (struct pci_dev *dev, pm_message_t state);	/* Device suspended */
L
Linus Torvalds 已提交
399 400
	int  (*suspend_late) (struct pci_dev *dev, pm_message_t state);
	int  (*resume_early) (struct pci_dev *dev);
L
Linus Torvalds 已提交
401
	int  (*resume) (struct pci_dev *dev);	                /* Device woken up */
G
Greg KH 已提交
402
	void (*shutdown) (struct pci_dev *dev);
403
	struct pm_ext_ops *pm;
404
	struct pci_error_handlers *err_handler;
L
Linus Torvalds 已提交
405 406 407 408
	struct device_driver	driver;
	struct pci_dynids dynids;
};

409
#define	to_pci_driver(drv) container_of(drv, struct pci_driver, driver)
L
Linus Torvalds 已提交
410

411
/**
412
 * DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table
413 414 415 416 417
 * @_table: device table name
 *
 * This macro is used to create a struct pci_device_id array (a device table)
 * in a generic manner.
 */
418
#define DEFINE_PCI_DEVICE_TABLE(_table) \
419 420
	const struct pci_device_id _table[] __devinitconst

L
Linus Torvalds 已提交
421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439
/**
 * PCI_DEVICE - macro used to describe a specific pci device
 * @vend: the 16 bit PCI Vendor ID
 * @dev: the 16 bit PCI Device ID
 *
 * This macro is used to create a struct pci_device_id that matches a
 * specific device.  The subvendor and subdevice fields will be set to
 * PCI_ANY_ID.
 */
#define PCI_DEVICE(vend,dev) \
	.vendor = (vend), .device = (dev), \
	.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID

/**
 * PCI_DEVICE_CLASS - macro used to describe a specific pci device class
 * @dev_class: the class, subclass, prog-if triple for this device
 * @dev_class_mask: the class mask for this device
 *
 * This macro is used to create a struct pci_device_id that matches a
440
 * specific PCI class.  The vendor, device, subvendor, and subdevice
L
Linus Torvalds 已提交
441 442 443 444 445 446 447
 * fields will be set to PCI_ANY_ID.
 */
#define PCI_DEVICE_CLASS(dev_class,dev_class_mask) \
	.class = (dev_class), .class_mask = (dev_class_mask), \
	.vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \
	.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID

448 449 450 451 452 453 454 455 456 457 458 459 460 461 462
/**
 * PCI_VDEVICE - macro used to describe a specific pci device in short form
 * @vend: the vendor name
 * @dev: the 16 bit PCI Device ID
 *
 * This macro is used to create a struct pci_device_id that matches a
 * specific PCI device.  The subvendor, and subdevice fields will be set
 * to PCI_ANY_ID. The macro allows the next field to follow as the device
 * private data.
 */

#define PCI_VDEVICE(vendor, device)		\
	PCI_VENDOR_ID_##vendor, (device),	\
	PCI_ANY_ID, PCI_ANY_ID, 0, 0

L
Linus Torvalds 已提交
463 464 465 466 467 468 469 470
/* these external functions are only available when PCI support is enabled */
#ifdef CONFIG_PCI

extern struct bus_type pci_bus_type;

/* Do NOT directly access these two variables, unless you are arch specific pci
 * code, or pci core code. */
extern struct list_head pci_root_buses;	/* list of all known PCI buses */
Z
Zhang, Yanmin 已提交
471 472
/* Some device drivers need know if pci is initiated */
extern int no_pci_devices(void);
L
Linus Torvalds 已提交
473 474

void pcibios_fixup_bus(struct pci_bus *);
475
int __must_check pcibios_enable_device(struct pci_dev *, int mask);
476
char *pcibios_setup(char *str);
L
Linus Torvalds 已提交
477 478

/* Used only when drivers/pci/setup.c is used */
479 480
void pcibios_align_resource(void *, struct resource *, resource_size_t,
				resource_size_t);
L
Linus Torvalds 已提交
481 482 483 484 485
void pcibios_update_irq(struct pci_dev *, int irq);

/* Generic PCI functions used internally */

extern struct pci_bus *pci_find_bus(int domain, int busnr);
486
void pci_bus_add_devices(struct pci_bus *bus);
487 488
struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus,
				      struct pci_ops *ops, void *sysdata);
489
static inline struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops,
490
					   void *sysdata)
L
Linus Torvalds 已提交
491
{
492 493 494 495 496
	struct pci_bus *root_bus;
	root_bus = pci_scan_bus_parented(NULL, bus, ops, sysdata);
	if (root_bus)
		pci_bus_add_devices(root_bus);
	return root_bus;
L
Linus Torvalds 已提交
497
}
498 499 500 501
struct pci_bus *pci_create_bus(struct device *parent, int bus,
			       struct pci_ops *ops, void *sysdata);
struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev,
				int busnr);
A
Alex Chiang 已提交
502 503 504 505
struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
				 const char *name);
void pci_destroy_slot(struct pci_slot *slot);
void pci_update_slot_number(struct pci_slot *slot, int slot_nr);
L
Linus Torvalds 已提交
506
int pci_scan_slot(struct pci_bus *bus, int devfn);
507
struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn);
508
void pci_device_add(struct pci_dev *dev, struct pci_bus *bus);
L
Linus Torvalds 已提交
509
unsigned int pci_scan_child_bus(struct pci_bus *bus);
510
int __must_check pci_bus_add_device(struct pci_dev *dev);
L
Linus Torvalds 已提交
511
void pci_read_bridge_bases(struct pci_bus *child);
512 513
struct resource *pci_find_parent_resource(const struct pci_dev *dev,
					  struct resource *res);
L
Linus Torvalds 已提交
514 515 516 517 518
int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge);
extern struct pci_dev *pci_dev_get(struct pci_dev *dev);
extern void pci_dev_put(struct pci_dev *dev);
extern void pci_remove_bus(struct pci_bus *b);
extern void pci_remove_bus_device(struct pci_dev *dev);
S
Satoru Takeuchi 已提交
519
extern void pci_stop_bus_device(struct pci_dev *dev);
520
void pci_setup_cardbus(struct pci_bus *bus);
521
extern void pci_sort_breadthfirst(void);
L
Linus Torvalds 已提交
522 523 524

/* Generic PCI functions exported to card drivers */

525
#ifdef CONFIG_PCI_LEGACY
526 527 528 529 530
struct pci_dev __deprecated *pci_find_device(unsigned int vendor,
					     unsigned int device,
					     const struct pci_dev *from);
struct pci_dev __deprecated *pci_find_slot(unsigned int bus,
					   unsigned int devfn);
531 532
#endif /* CONFIG_PCI_LEGACY */

533 534 535 536 537
int pci_find_capability(struct pci_dev *dev, int cap);
int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap);
int pci_find_ext_capability(struct pci_dev *dev, int cap);
int pci_find_ht_capability(struct pci_dev *dev, int ht_cap);
int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap);
A
Alan Cox 已提交
538
struct pci_bus *pci_find_next_bus(const struct pci_bus *from);
L
Linus Torvalds 已提交
539

540 541
struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device,
				struct pci_dev *from);
542
struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
L
Linus Torvalds 已提交
543
				unsigned int ss_vendor, unsigned int ss_device,
544
				const struct pci_dev *from);
545 546 547
struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn);
struct pci_dev *pci_get_bus_and_slot(unsigned int bus, unsigned int devfn);
struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from);
L
Linus Torvalds 已提交
548 549
int pci_dev_present(const struct pci_device_id *ids);

550 551 552 553 554 555 556 557 558 559 560 561
int pci_bus_read_config_byte(struct pci_bus *bus, unsigned int devfn,
			     int where, u8 *val);
int pci_bus_read_config_word(struct pci_bus *bus, unsigned int devfn,
			     int where, u16 *val);
int pci_bus_read_config_dword(struct pci_bus *bus, unsigned int devfn,
			      int where, u32 *val);
int pci_bus_write_config_byte(struct pci_bus *bus, unsigned int devfn,
			      int where, u8 val);
int pci_bus_write_config_word(struct pci_bus *bus, unsigned int devfn,
			      int where, u16 val);
int pci_bus_write_config_dword(struct pci_bus *bus, unsigned int devfn,
			       int where, u32 val);
L
Linus Torvalds 已提交
562 563 564

static inline int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val)
{
565
	return pci_bus_read_config_byte(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
566 567 568
}
static inline int pci_read_config_word(struct pci_dev *dev, int where, u16 *val)
{
569
	return pci_bus_read_config_word(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
570
}
571 572
static inline int pci_read_config_dword(struct pci_dev *dev, int where,
					u32 *val)
L
Linus Torvalds 已提交
573
{
574
	return pci_bus_read_config_dword(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
575 576 577
}
static inline int pci_write_config_byte(struct pci_dev *dev, int where, u8 val)
{
578
	return pci_bus_write_config_byte(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
579 580 581
}
static inline int pci_write_config_word(struct pci_dev *dev, int where, u16 val)
{
582
	return pci_bus_write_config_word(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
583
}
584 585
static inline int pci_write_config_dword(struct pci_dev *dev, int where,
					 u32 val)
L
Linus Torvalds 已提交
586
{
587
	return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
588 589
}

590
int __must_check pci_enable_device(struct pci_dev *dev);
591 592
int __must_check pci_enable_device_io(struct pci_dev *dev);
int __must_check pci_enable_device_mem(struct pci_dev *dev);
593
int __must_check pci_reenable_device(struct pci_dev *);
T
Tejun Heo 已提交
594 595 596 597 598 599 600 601
int __must_check pcim_enable_device(struct pci_dev *pdev);
void pcim_pin_device(struct pci_dev *pdev);

static inline int pci_is_managed(struct pci_dev *pdev)
{
	return pdev->is_managed;
}

L
Linus Torvalds 已提交
602 603
void pci_disable_device(struct pci_dev *dev);
void pci_set_master(struct pci_dev *dev);
B
Brian King 已提交
604
int pci_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state);
L
Linus Torvalds 已提交
605
#define HAVE_PCI_SET_MWI
606
int __must_check pci_set_mwi(struct pci_dev *dev);
R
Randy Dunlap 已提交
607
int pci_try_set_mwi(struct pci_dev *dev);
L
Linus Torvalds 已提交
608
void pci_clear_mwi(struct pci_dev *dev);
B
Brett M Russ 已提交
609
void pci_intx(struct pci_dev *dev, int enable);
610
void pci_msi_off(struct pci_dev *dev);
611 612
int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
613
int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size);
614
int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask);
615 616 617
int pcix_get_max_mmrbc(struct pci_dev *dev);
int pcix_get_mmrbc(struct pci_dev *dev);
int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc);
618
int pcie_get_readrq(struct pci_dev *dev);
619
int pcie_set_readrq(struct pci_dev *dev, int rq);
620
void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
621
int __must_check pci_assign_resource(struct pci_dev *dev, int i);
622
int pci_select_bars(struct pci_dev *dev, unsigned long flags);
L
Linus Torvalds 已提交
623 624

/* ROM control related routines */
625
void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size);
L
Linus Torvalds 已提交
626
void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom);
627
size_t pci_get_rom_size(void __iomem *rom, size_t size);
L
Linus Torvalds 已提交
628 629 630 631

/* Power management related routines */
int pci_save_state(struct pci_dev *dev);
int pci_restore_state(struct pci_dev *dev);
632 633 634
int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable);
L
Linus Torvalds 已提交
635

636
/* Functions for PCI Hotplug drivers to use */
637
int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap);
638

L
Linus Torvalds 已提交
639 640 641 642 643 644 645
/* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
void pci_bus_assign_resources(struct pci_bus *bus);
void pci_bus_size_bridges(struct pci_bus *bus);
int pci_claim_resource(struct pci_dev *, int);
void pci_assign_unassigned_resources(void);
void pdev_enable_device(struct pci_dev *);
void pdev_sort_resources(struct pci_dev *, struct resource_list *);
646
int pci_enable_resources(struct pci_dev *, int mask);
L
Linus Torvalds 已提交
647 648 649
void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
		    int (*)(struct pci_dev *, u8, u8));
#define HAVE_PCI_REQ_REGIONS	2
650
int __must_check pci_request_regions(struct pci_dev *, const char *);
L
Linus Torvalds 已提交
651
void pci_release_regions(struct pci_dev *);
652
int __must_check pci_request_region(struct pci_dev *, int, const char *);
L
Linus Torvalds 已提交
653
void pci_release_region(struct pci_dev *, int);
654 655
int pci_request_selected_regions(struct pci_dev *, int, const char *);
void pci_release_selected_regions(struct pci_dev *, int);
L
Linus Torvalds 已提交
656 657

/* drivers/pci/bus.c */
658 659 660 661 662 663 664
int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
			struct resource *res, resource_size_t size,
			resource_size_t align, resource_size_t min,
			unsigned int type_mask,
			void (*alignf)(void *, struct resource *,
				resource_size_t, resource_size_t),
			void *alignf_data);
L
Linus Torvalds 已提交
665 666
void pci_enable_bridges(struct pci_bus *bus);

667
/* Proper probing supporting hot-pluggable devices */
668 669
int __must_check __pci_register_driver(struct pci_driver *, struct module *,
				       const char *mod_name);
670
static inline int __must_check pci_register_driver(struct pci_driver *driver)
671
{
672
	return __pci_register_driver(driver, THIS_MODULE, KBUILD_MODNAME);
673 674
}

675 676 677 678 679 680 681
void pci_unregister_driver(struct pci_driver *dev);
void pci_remove_behind_bridge(struct pci_dev *dev);
struct pci_driver *pci_dev_driver(const struct pci_dev *dev);
const struct pci_device_id *pci_match_id(const struct pci_device_id *ids,
					 struct pci_dev *dev);
int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
		    int pass);
L
Linus Torvalds 已提交
682

683 684
void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
		  void *userdata);
685
int pci_cfg_space_size_ext(struct pci_dev *dev);
686
int pci_cfg_space_size(struct pci_dev *dev);
687
unsigned char pci_bus_max_busnr(struct pci_bus *bus);
688

L
Linus Torvalds 已提交
689 690 691 692 693 694 695 696 697 698 699
/* kmem_cache style wrapper around pci_alloc_consistent() */

#include <linux/dmapool.h>

#define	pci_pool dma_pool
#define pci_pool_create(name, pdev, size, align, allocation) \
		dma_pool_create(name, &pdev->dev, size, align, allocation)
#define	pci_pool_destroy(pool) dma_pool_destroy(pool)
#define	pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle)
#define	pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr)

700 701 702 703 704 705 706 707 708
enum pci_dma_burst_strategy {
	PCI_DMA_BURST_INFINITY,	/* make bursts as large as possible,
				   strategy_parameter is N/A */
	PCI_DMA_BURST_BOUNDARY, /* disconnect at every strategy_parameter
				   byte boundaries */
	PCI_DMA_BURST_MULTIPLE, /* disconnect at some multiple of
				   strategy_parameter byte boundaries */
};

L
Linus Torvalds 已提交
709 710 711 712 713
struct msix_entry {
	u16 	vector;	/* kernel uses to write allocated vector */
	u16	entry;	/* driver uses to specify entry, OS writes */
};

714

L
Linus Torvalds 已提交
715
#ifndef CONFIG_PCI_MSI
716 717 718 719 720
static inline int pci_enable_msi(struct pci_dev *dev)
{
	return -1;
}

721 722
static inline void pci_msi_shutdown(struct pci_dev *dev)
{ }
723 724 725 726 727 728 729 730 731
static inline void pci_disable_msi(struct pci_dev *dev)
{ }

static inline int pci_enable_msix(struct pci_dev *dev,
				  struct msix_entry *entries, int nvec)
{
	return -1;
}

732 733
static inline void pci_msix_shutdown(struct pci_dev *dev)
{ }
734 735 736 737 738 739 740 741
static inline void pci_disable_msix(struct pci_dev *dev)
{ }

static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev)
{ }

static inline void pci_restore_msi_state(struct pci_dev *dev)
{ }
L
Linus Torvalds 已提交
742 743
#else
extern int pci_enable_msi(struct pci_dev *dev);
744
extern void pci_msi_shutdown(struct pci_dev *dev);
L
Linus Torvalds 已提交
745
extern void pci_disable_msi(struct pci_dev *dev);
746
extern int pci_enable_msix(struct pci_dev *dev,
L
Linus Torvalds 已提交
747
	struct msix_entry *entries, int nvec);
748
extern void pci_msix_shutdown(struct pci_dev *dev);
L
Linus Torvalds 已提交
749 750
extern void pci_disable_msix(struct pci_dev *dev);
extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
751
extern void pci_restore_msi_state(struct pci_dev *dev);
L
Linus Torvalds 已提交
752 753
#endif

754 755 756 757 758 759
#ifdef CONFIG_HT_IRQ
/* The functions a driver should call */
int  ht_create_irq(struct pci_dev *dev, int idx);
void ht_destroy_irq(unsigned int irq);
#endif /* CONFIG_HT_IRQ */

760 761 762
extern void pci_block_user_cfg_access(struct pci_dev *dev);
extern void pci_unblock_user_cfg_access(struct pci_dev *dev);

763 764 765 766 767
/*
 * PCI domain support.  Sometimes called PCI segment (eg by ACPI),
 * a PCI domain is defined to be a set of PCI busses which share
 * configuration space.
 */
768 769 770 771
#ifdef CONFIG_PCI_DOMAINS
extern int pci_domains_supported;
#else
enum { pci_domains_supported = 0 };
772 773 774 775 776
static inline int pci_domain_nr(struct pci_bus *bus)
{
	return 0;
}

777 778 779 780
static inline int pci_proc_domain(struct pci_bus *bus)
{
	return 0;
}
781
#endif /* CONFIG_PCI_DOMAINS */
L
Linus Torvalds 已提交
782

783
#else /* CONFIG_PCI is not enabled */
L
Linus Torvalds 已提交
784 785 786 787 788 789

/*
 *  If the system does not have PCI, clearly these return errors.  Define
 *  these as simple inline functions to avoid hair in drivers.
 */

790 791 792
#define _PCI_NOP(o, s, t) \
	static inline int pci_##o##_config_##s(struct pci_dev *dev, \
						int where, t val) \
L
Linus Torvalds 已提交
793
		{ return PCIBIOS_FUNC_NOT_SUPPORTED; }
794 795 796 797

#define _PCI_NOP_ALL(o, x)	_PCI_NOP(o, byte, u8 x) \
				_PCI_NOP(o, word, u16 x) \
				_PCI_NOP(o, dword, u32 x)
L
Linus Torvalds 已提交
798 799 800
_PCI_NOP_ALL(read, *)
_PCI_NOP_ALL(write,)

801 802 803 804 805 806
static inline struct pci_dev *pci_find_device(unsigned int vendor,
					      unsigned int device,
					      const struct pci_dev *from)
{
	return NULL;
}
L
Linus Torvalds 已提交
807

808 809 810 811 812
static inline struct pci_dev *pci_find_slot(unsigned int bus,
					    unsigned int devfn)
{
	return NULL;
}
L
Linus Torvalds 已提交
813

814
static inline struct pci_dev *pci_get_device(unsigned int vendor,
815 816 817 818 819
					     unsigned int device,
					     struct pci_dev *from)
{
	return NULL;
}
820

821 822 823 824
static inline struct pci_dev *pci_get_subsys(unsigned int vendor,
					     unsigned int device,
					     unsigned int ss_vendor,
					     unsigned int ss_device,
825
					     const struct pci_dev *from)
826 827 828
{
	return NULL;
}
L
Linus Torvalds 已提交
829

830 831 832 833 834
static inline struct pci_dev *pci_get_class(unsigned int class,
					    struct pci_dev *from)
{
	return NULL;
}
L
Linus Torvalds 已提交
835 836

#define pci_dev_present(ids)	(0)
Z
Zhang, Yanmin 已提交
837
#define no_pci_devices()	(1)
L
Linus Torvalds 已提交
838 839
#define pci_dev_put(dev)	do { } while (0)

840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855
static inline void pci_set_master(struct pci_dev *dev)
{ }

static inline int pci_enable_device(struct pci_dev *dev)
{
	return -EIO;
}

static inline void pci_disable_device(struct pci_dev *dev)
{ }

static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
{
	return -EIO;
}

856 857 858 859 860 861
static inline int pci_set_dma_max_seg_size(struct pci_dev *dev,
					unsigned int size)
{
	return -EIO;
}

862 863 864 865 866 867
static inline int pci_set_dma_seg_boundary(struct pci_dev *dev,
					unsigned long mask)
{
	return -EIO;
}

868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902
static inline int pci_assign_resource(struct pci_dev *dev, int i)
{
	return -EBUSY;
}

static inline int __pci_register_driver(struct pci_driver *drv,
					struct module *owner)
{
	return 0;
}

static inline int pci_register_driver(struct pci_driver *drv)
{
	return 0;
}

static inline void pci_unregister_driver(struct pci_driver *drv)
{ }

static inline int pci_find_capability(struct pci_dev *dev, int cap)
{
	return 0;
}

static inline int pci_find_next_capability(struct pci_dev *dev, u8 post,
					   int cap)
{
	return 0;
}

static inline int pci_find_ext_capability(struct pci_dev *dev, int cap)
{
	return 0;
}

L
Linus Torvalds 已提交
903
/* Power management related routines */
904 905 906 907 908 909 910 911 912
static inline int pci_save_state(struct pci_dev *dev)
{
	return 0;
}

static inline int pci_restore_state(struct pci_dev *dev)
{
	return 0;
}
L
Linus Torvalds 已提交
913

914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937
static inline int pci_set_power_state(struct pci_dev *dev, pci_power_t state)
{
	return 0;
}

static inline pci_power_t pci_choose_state(struct pci_dev *dev,
					   pm_message_t state)
{
	return PCI_D0;
}

static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state,
				  int enable)
{
	return 0;
}

static inline int pci_request_regions(struct pci_dev *dev, const char *res_name)
{
	return -EIO;
}

static inline void pci_release_regions(struct pci_dev *dev)
{ }
938

939 940
#define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0)

941 942 943 944 945
static inline void pci_block_user_cfg_access(struct pci_dev *dev)
{ }

static inline void pci_unblock_user_cfg_access(struct pci_dev *dev)
{ }
946

R
Randy Dunlap 已提交
947 948 949 950 951 952 953 954 955 956 957
static inline struct pci_bus *pci_find_next_bus(const struct pci_bus *from)
{ return NULL; }

static inline struct pci_dev *pci_get_slot(struct pci_bus *bus,
						unsigned int devfn)
{ return NULL; }

static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
						unsigned int devfn)
{ return NULL; }

958
#endif /* CONFIG_PCI */
L
Linus Torvalds 已提交
959

960 961 962
/* Include architecture-dependent settings and functions */

#include <asm/pci.h>
L
Linus Torvalds 已提交
963 964 965

/* these helpers provide future and backwards compatibility
 * for accessing popular PCI BAR info */
966 967 968
#define pci_resource_start(dev, bar)	((dev)->resource[(bar)].start)
#define pci_resource_end(dev, bar)	((dev)->resource[(bar)].end)
#define pci_resource_flags(dev, bar)	((dev)->resource[(bar)].flags)
L
Linus Torvalds 已提交
969
#define pci_resource_len(dev,bar) \
970 971 972 973 974 975
	((pci_resource_start((dev), (bar)) == 0 &&	\
	  pci_resource_end((dev), (bar)) ==		\
	  pci_resource_start((dev), (bar))) ? 0 :	\
							\
	 (pci_resource_end((dev), (bar)) -		\
	  pci_resource_start((dev), (bar)) + 1))
L
Linus Torvalds 已提交
976 977 978 979 980

/* Similar to the helpers above, these manipulate per-pci_dev
 * driver-specific data.  They are really just a wrapper around
 * the generic device structure functions of these calls.
 */
981
static inline void *pci_get_drvdata(struct pci_dev *pdev)
L
Linus Torvalds 已提交
982 983 984 985
{
	return dev_get_drvdata(&pdev->dev);
}

986
static inline void pci_set_drvdata(struct pci_dev *pdev, void *data)
L
Linus Torvalds 已提交
987 988 989 990 991 992 993 994 995 996 997 998
{
	dev_set_drvdata(&pdev->dev, data);
}

/* If you want to know what to call your pci_dev, ask this function.
 * Again, it's a wrapper around the generic device.
 */
static inline char *pci_name(struct pci_dev *pdev)
{
	return pdev->dev.bus_id;
}

999 1000 1001 1002 1003 1004

/* Some archs don't want to expose struct resource to userland as-is
 * in sysfs and /proc
 */
#ifndef HAVE_ARCH_PCI_RESOURCE_TO_USER
static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
1005
		const struct resource *rsrc, resource_size_t *start,
1006
		resource_size_t *end)
1007 1008 1009 1010 1011 1012 1013
{
	*start = rsrc->start;
	*end = rsrc->end;
}
#endif /* HAVE_ARCH_PCI_RESOURCE_TO_USER */


L
Linus Torvalds 已提交
1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030
/*
 *  The world is not perfect and supplies us with broken PCI devices.
 *  For at least a part of these bugs we need a work-around, so both
 *  generic (drivers/pci/quirks.c) and per-architecture code can define
 *  fixup hooks to be called for particular buggy devices.
 */

struct pci_fixup {
	u16 vendor, device;	/* You can use PCI_ANY_ID here of course */
	void (*hook)(struct pci_dev *dev);
};

enum pci_fixup_pass {
	pci_fixup_early,	/* Before probing BARs */
	pci_fixup_header,	/* After reading configuration header */
	pci_fixup_final,	/* Final phase of device fixups */
	pci_fixup_enable,	/* pci_enable_device() time */
1031 1032 1033
	pci_fixup_resume,	/* pci_device_resume() */
	pci_fixup_suspend,	/* pci_device_suspend */
	pci_fixup_resume_early, /* pci_device_resume_early() */
L
Linus Torvalds 已提交
1034 1035 1036 1037
};

/* Anonymous variables would be nice... */
#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)	\
A
Adrian Bunk 已提交
1038
	static const struct pci_fixup __pci_fixup_##name __used		\
L
Linus Torvalds 已提交
1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051
	__attribute__((__section__(#section))) = { vendor, device, hook };
#define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook)			\
	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early,			\
			vendor##device##hook, vendor, device, hook)
#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)			\
	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header,			\
			vendor##device##hook, vendor, device, hook)
#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)			\
	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final,			\
			vendor##device##hook, vendor, device, hook)
#define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook)			\
	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable,			\
			vendor##device##hook, vendor, device, hook)
1052 1053 1054
#define DECLARE_PCI_FIXUP_RESUME(vendor, device, hook)			\
	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume,			\
			resume##vendor##device##hook, vendor, device, hook)
1055 1056 1057 1058 1059 1060
#define DECLARE_PCI_FIXUP_RESUME_EARLY(vendor, device, hook)		\
	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume_early,		\
			resume_early##vendor##device##hook, vendor, device, hook)
#define DECLARE_PCI_FIXUP_SUSPEND(vendor, device, hook)			\
	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend,			\
			suspend##vendor##device##hook, vendor, device, hook)
L
Linus Torvalds 已提交
1061 1062 1063 1064


void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);

1065
void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen);
A
Al Viro 已提交
1066
void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr);
1067
void __iomem * const *pcim_iomap_table(struct pci_dev *pdev);
A
Al Viro 已提交
1068
int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name);
1069 1070
int pcim_iomap_regions_request_all(struct pci_dev *pdev, u16 mask,
				   const char *name);
1071
void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask);
A
Al Viro 已提交
1072

L
Linus Torvalds 已提交
1073
extern int pci_pci_problems;
A
Alan Cox 已提交
1074
#define PCIPCI_FAIL		1	/* No PCI PCI DMA */
L
Linus Torvalds 已提交
1075 1076 1077 1078
#define PCIPCI_TRITON		2
#define PCIPCI_NATOMA		4
#define PCIPCI_VIAETBF		8
#define PCIPCI_VSFX		16
A
Alan Cox 已提交
1079 1080
#define PCIPCI_ALIMAGIK		32	/* Need low latency setting */
#define PCIAGP_FAIL		64	/* No PCI to AGP DMA */
L
Linus Torvalds 已提交
1081

1082 1083 1084
extern unsigned long pci_cardbus_io_size;
extern unsigned long pci_cardbus_mem_size;

1085 1086 1087 1088
int pcibios_add_platform_entries(struct pci_dev *dev);
void pcibios_disable_device(struct pci_dev *dev);
int pcibios_set_pcie_reset_state(struct pci_dev *dev,
				 enum pcie_reset_state state);
1089

1090
#ifdef CONFIG_PCI_MMCONFIG
1091
extern void __init pci_mmcfg_early_init(void);
1092 1093
extern void __init pci_mmcfg_late_init(void);
#else
1094
static inline void pci_mmcfg_early_init(void) { }
1095 1096 1097
static inline void pci_mmcfg_late_init(void) { }
#endif

L
Linus Torvalds 已提交
1098 1099
#endif /* __KERNEL__ */
#endif /* LINUX_PCI_H */