pci.h 33.7 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

20 21
/* Include the pci register defines */
#include <linux/pci_regs.h>
L
Linus Torvalds 已提交
22 23 24 25 26 27 28 29 30

/*
 * 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
 */
31
#define PCI_DEVFN(slot, func)	((((slot) & 0x1f) << 3) | ((func) & 0x07))
L
Linus Torvalds 已提交
32 33 34 35 36 37 38 39 40 41 42 43
#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__

44 45
#include <linux/mod_devicetable.h>

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

54 55 56
/* Include the ID list */
#include <linux/pci_ids.h>

L
Linus Torvalds 已提交
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
/* 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;

73 74 75
#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
76 77
#define PCI_D3hot	((pci_power_t __force) 3)
#define PCI_D3cold	((pci_power_t __force) 4)
78
#define PCI_UNKNOWN	((pci_power_t __force) 5)
79
#define PCI_POWER_ERROR	((pci_power_t __force) -1)
L
Linus Torvalds 已提交
80

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
/** 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
98 99 100 101 102 103 104 105 106 107 108 109 110
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
};

111 112 113 114 115 116 117 118
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,
};

119 120
typedef unsigned short __bitwise pci_bus_flags_t;
enum pci_bus_flags {
121 122
	PCI_BUS_FLAGS_NO_MSI   = (__force pci_bus_flags_t) 1,
	PCI_BUS_FLAGS_NO_MMRBC = (__force pci_bus_flags_t) 2,
123 124
};

125 126 127 128 129 130
struct pci_cap_saved_state {
	struct hlist_node next;
	char cap_nr;
	u32 data[0];
};

L
Linus Torvalds 已提交
131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148
/*
 * The pci_dev structure is used to describe PCI devices.
 */
struct pci_dev {
	struct list_head global_list;	/* node in list of all PCI devices */
	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 */

	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
149
	u8		revision;	/* PCI revision, low byte of class word */
L
Linus Torvalds 已提交
150
	u8		hdr_type;	/* PCI header type (`multi' flag masked out) */
151
	u8		pcie_type;	/* PCI-E device/port type */
L
Linus Torvalds 已提交
152
	u8		rom_base_reg;	/* which config register controls the ROM */
153
	u8		pin;  		/* which interrupt pin this device uses */
L
Linus Torvalds 已提交
154 155 156 157 158 159 160 161 162 163 164 165

	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.  */

	pci_power_t     current_state;  /* Current operating state. In ACPI-speak,
					   this is D0-D3, D0 being fully functional,
					   and D3 being off. */

166
	pci_channel_state_t error_state;	/* current connectivity state */
L
Linus Torvalds 已提交
167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182
	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 */
	unsigned int	is_busmaster:1; /* device is busmaster */
183
	unsigned int	no_msi:1;	/* device may not use msi */
184
	unsigned int	no_d1d2:1;   /* only allow d0 or d3 */
185
	unsigned int	block_ucfg_access:1;	/* userspace config space access is blocked */
186
	unsigned int	broken_parity_status:1;	/* Device generates false positive parity */
187 188
	unsigned int 	msi_enabled:1;
	unsigned int	msix_enabled:1;
T
Tejun Heo 已提交
189
	unsigned int	is_managed:1;
190
	unsigned int	is_pcie:1;
191
	pci_dev_flags_t dev_flags;
192
	atomic_t	enable_cnt;	/* pci_enable_device has been called */
193

L
Linus Torvalds 已提交
194
	u32		saved_config_space[16]; /* config space saved at suspend time */
195
	struct hlist_head saved_cap_space;
L
Linus Torvalds 已提交
196 197 198
	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
199
#ifdef CONFIG_PCI_MSI
200
	struct list_head msi_list;
E
Eric W. Biederman 已提交
201
#endif
L
Linus Torvalds 已提交
202 203
};

204 205
extern struct pci_dev *alloc_pci_dev(void);

L
Linus Torvalds 已提交
206 207 208 209 210
#define pci_dev_g(n) list_entry(n, struct pci_dev, global_list)
#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)

211 212 213 214 215
static inline int pci_channel_offline(struct pci_dev *pdev)
{
	return (pdev->error_state != pci_channel_io_normal);
}

216
static inline struct pci_cap_saved_state *pci_find_saved_cap(
217
	struct pci_dev *pci_dev, char cap)
218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234
{
	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
235 236 237 238 239 240 241 242
/*
 *  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
 */

243 244 245
#define PCI_ROM_RESOURCE	6
#define PCI_BRIDGE_RESOURCES	7
#define PCI_NUM_RESOURCES	11
L
Linus Torvalds 已提交
246 247

#ifndef PCI_BUS_NUM_RESOURCES
248
#define PCI_BUS_NUM_RESOURCES	8
L
Linus Torvalds 已提交
249
#endif
250 251

#define PCI_REGION_FLAG_MASK	0x0fU	/* These bits of resource flags tell us the PCI region flags */
L
Linus Torvalds 已提交
252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273

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 */
	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 */
274
	pci_bus_flags_t bus_flags;	/* Inherited by child busses */
L
Linus Torvalds 已提交
275
	struct device		*bridge;
276
	struct device		dev;
L
Linus Torvalds 已提交
277 278 279 280 281
	struct bin_attribute	*legacy_io; /* legacy I/O for this bus */
	struct bin_attribute	*legacy_mem; /* legacy mem */
};

#define pci_bus_b(n)	list_entry(n, struct pci_bus, node)
282
#define to_pci_bus(n)	container_of(n, struct pci_bus, dev)
L
Linus Torvalds 已提交
283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311

/*
 * 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);
};

struct pci_raw_ops {
	int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
		    int reg, int len, u32 *val);
	int (*write)(unsigned int domain, unsigned int bus, unsigned int devfn,
		     int reg, int len, u32 val);
};

extern struct pci_raw_ops *raw_pci_ops;

struct pci_bus_region {
312 313
	resource_size_t start;
	resource_size_t end;
L
Linus Torvalds 已提交
314 315 316 317 318 319 320 321
};

struct pci_dynids {
	spinlock_t lock;            /* protects list, index */
	struct list_head list;      /* for IDs added at runtime */
	unsigned int use_driver_data:1; /* pci_driver->driver_data is used */
};

322 323
/* ---------------------------------------------------------------- */
/** PCI Error Recovery System (PCI-ERS).  If a PCI device driver provides
324
 *  a set of callbacks in struct pci_error_handlers, then that device driver
325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348
 *  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 */
349
struct pci_error_handlers {
350 351
	/* PCI bus error detected on this device */
	pci_ers_result_t (*error_detected)(struct pci_dev *dev,
352
					   enum pci_channel_state error);
353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368

	/* 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
369 370 371 372 373 374 375 376
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
377 378
	int  (*suspend_late) (struct pci_dev *dev, pm_message_t state);
	int  (*resume_early) (struct pci_dev *dev);
L
Linus Torvalds 已提交
379
	int  (*resume) (struct pci_dev *dev);	                /* Device woken up */
G
Greg KH 已提交
380
	void (*shutdown) (struct pci_dev *dev);
L
Linus Torvalds 已提交
381

382
	struct pci_error_handlers *err_handler;
L
Linus Torvalds 已提交
383 384 385 386
	struct device_driver	driver;
	struct pci_dynids dynids;
};

387
#define	to_pci_driver(drv) container_of(drv, struct pci_driver, driver)
L
Linus Torvalds 已提交
388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407

/**
 * 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
408
 * specific PCI class.  The vendor, device, subvendor, and subdevice
L
Linus Torvalds 已提交
409 410 411 412 413 414 415
 * 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

416 417 418 419 420 421 422 423 424 425 426 427 428 429 430
/**
 * 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
431 432 433 434 435 436 437 438 439
/* 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 */
extern struct list_head pci_devices;	/* list of all devices */
Z
Zhang, Yanmin 已提交
440 441
/* Some device drivers need know if pci is initiated */
extern int no_pci_devices(void);
L
Linus Torvalds 已提交
442 443

void pcibios_fixup_bus(struct pci_bus *);
444
int __must_check pcibios_enable_device(struct pci_dev *, int mask);
445
char *pcibios_setup(char *str);
L
Linus Torvalds 已提交
446 447

/* Used only when drivers/pci/setup.c is used */
448 449
void pcibios_align_resource(void *, struct resource *, resource_size_t,
				resource_size_t);
L
Linus Torvalds 已提交
450 451 452 453 454
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);
455
void pci_bus_add_devices(struct pci_bus *bus);
456 457 458 459
struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus,
				      struct pci_ops *ops, void *sysdata);
static inline struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops,
					   void *sysdata)
L
Linus Torvalds 已提交
460
{
461 462 463 464 465
	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
466
}
467 468 469 470
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);
L
Linus Torvalds 已提交
471
int pci_scan_slot(struct pci_bus *bus, int devfn);
472
struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn);
473
void pci_device_add(struct pci_dev *dev, struct pci_bus *bus);
L
Linus Torvalds 已提交
474
unsigned int pci_scan_child_bus(struct pci_bus *bus);
475
int __must_check pci_bus_add_device(struct pci_dev *dev);
L
Linus Torvalds 已提交
476
void pci_read_bridge_bases(struct pci_bus *child);
477 478
struct resource *pci_find_parent_resource(const struct pci_dev *dev,
					  struct resource *res);
L
Linus Torvalds 已提交
479 480 481 482 483
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
484
extern void pci_stop_bus_device(struct pci_dev *dev);
485
void pci_setup_cardbus(struct pci_bus *bus);
486
extern void pci_sort_breadthfirst(void);
L
Linus Torvalds 已提交
487 488 489

/* Generic PCI functions exported to card drivers */

490
#ifdef CONFIG_PCI_LEGACY
491 492 493 494 495
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);
496 497
#endif /* CONFIG_PCI_LEGACY */

498 499 500 501 502
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);
503
void pcie_wait_pending_transaction(struct pci_dev *dev);
A
Alan Cox 已提交
504
struct pci_bus *pci_find_next_bus(const struct pci_bus *from);
L
Linus Torvalds 已提交
505

506 507 508 509 510
struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device,
				struct pci_dev *from);
struct pci_dev *pci_get_device_reverse(unsigned int vendor, unsigned int device,
				struct pci_dev *from);

511
struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
L
Linus Torvalds 已提交
512 513
				unsigned int ss_vendor, unsigned int ss_device,
				struct pci_dev *from);
514 515 516
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
517
int pci_dev_present(const struct pci_device_id *ids);
A
Alan Cox 已提交
518
const struct pci_device_id *pci_find_present(const struct pci_device_id *ids);
L
Linus Torvalds 已提交
519

520 521 522 523 524 525 526 527 528 529 530 531
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
532 533 534

static inline int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val)
{
535
	return pci_bus_read_config_byte(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
536 537 538
}
static inline int pci_read_config_word(struct pci_dev *dev, int where, u16 *val)
{
539
	return pci_bus_read_config_word(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
540
}
541 542
static inline int pci_read_config_dword(struct pci_dev *dev, int where,
					u32 *val)
L
Linus Torvalds 已提交
543
{
544
	return pci_bus_read_config_dword(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
545 546 547
}
static inline int pci_write_config_byte(struct pci_dev *dev, int where, u8 val)
{
548
	return pci_bus_write_config_byte(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
549 550 551
}
static inline int pci_write_config_word(struct pci_dev *dev, int where, u16 val)
{
552
	return pci_bus_write_config_word(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
553
}
554 555
static inline int pci_write_config_dword(struct pci_dev *dev, int where,
					 u32 val)
L
Linus Torvalds 已提交
556
{
557
	return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val);
L
Linus Torvalds 已提交
558 559
}

560
int __must_check pci_enable_device(struct pci_dev *dev);
561 562
int __must_check pci_enable_device_io(struct pci_dev *dev);
int __must_check pci_enable_device_mem(struct pci_dev *dev);
563
int __must_check pci_reenable_device(struct pci_dev *);
T
Tejun Heo 已提交
564 565 566 567 568 569 570 571
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
572 573
void pci_disable_device(struct pci_dev *dev);
void pci_set_master(struct pci_dev *dev);
B
Brian King 已提交
574
int pci_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state);
L
Linus Torvalds 已提交
575
#define HAVE_PCI_SET_MWI
576
int __must_check pci_set_mwi(struct pci_dev *dev);
R
Randy Dunlap 已提交
577
int pci_try_set_mwi(struct pci_dev *dev);
L
Linus Torvalds 已提交
578
void pci_clear_mwi(struct pci_dev *dev);
B
Brett M Russ 已提交
579
void pci_intx(struct pci_dev *dev, int enable);
580
void pci_msi_off(struct pci_dev *dev);
581 582
int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
583 584 585
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);
586
int pcie_get_readrq(struct pci_dev *dev);
587
int pcie_set_readrq(struct pci_dev *dev, int rq);
588
void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
589 590
int __must_check pci_assign_resource(struct pci_dev *dev, int i);
int __must_check pci_assign_resource_fixed(struct pci_dev *dev, int i);
591
int pci_select_bars(struct pci_dev *dev, unsigned long flags);
L
Linus Torvalds 已提交
592 593

/* ROM control related routines */
594
void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size);
L
Linus Torvalds 已提交
595
void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom);
596
size_t pci_get_rom_size(void __iomem *rom, size_t size);
L
Linus Torvalds 已提交
597 598 599 600

/* Power management related routines */
int pci_save_state(struct pci_dev *dev);
int pci_restore_state(struct pci_dev *dev);
601 602 603
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
604

605
/* Functions for PCI Hotplug drivers to use */
606
int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap);
607

L
Linus Torvalds 已提交
608 609 610 611 612 613 614 615 616 617
/* 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 *);
void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
		    int (*)(struct pci_dev *, u8, u8));
#define HAVE_PCI_REQ_REGIONS	2
618
int __must_check pci_request_regions(struct pci_dev *, const char *);
L
Linus Torvalds 已提交
619
void pci_release_regions(struct pci_dev *);
620
int __must_check pci_request_region(struct pci_dev *, int, const char *);
L
Linus Torvalds 已提交
621
void pci_release_region(struct pci_dev *, int);
622 623
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
624 625

/* drivers/pci/bus.c */
626 627 628 629 630 631 632
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
633 634
void pci_enable_bridges(struct pci_bus *bus);

635
/* Proper probing supporting hot-pluggable devices */
636 637
int __must_check __pci_register_driver(struct pci_driver *, struct module *,
				       const char *mod_name);
638
static inline int __must_check pci_register_driver(struct pci_driver *driver)
639
{
640
	return __pci_register_driver(driver, THIS_MODULE, KBUILD_MODNAME);
641 642
}

643 644 645 646 647 648 649
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
650

651 652
void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
		  void *userdata);
653
int pci_cfg_space_size(struct pci_dev *dev);
654
unsigned char pci_bus_max_busnr(struct pci_bus *bus);
655

L
Linus Torvalds 已提交
656 657 658 659 660 661 662 663 664 665 666
/* 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)

667 668 669 670 671 672 673 674 675
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
676 677 678 679 680
struct msix_entry {
	u16 	vector;	/* kernel uses to write allocated vector */
	u16	entry;	/* driver uses to specify entry, OS writes */
};

681

L
Linus Torvalds 已提交
682
#ifndef CONFIG_PCI_MSI
683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
static inline int pci_enable_msi(struct pci_dev *dev)
{
	return -1;
}

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;
}

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
705 706 707
#else
extern int pci_enable_msi(struct pci_dev *dev);
extern void pci_disable_msi(struct pci_dev *dev);
708
extern int pci_enable_msix(struct pci_dev *dev,
L
Linus Torvalds 已提交
709 710 711
	struct msix_entry *entries, int nvec);
extern void pci_disable_msix(struct pci_dev *dev);
extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
712
extern void pci_restore_msi_state(struct pci_dev *dev);
L
Linus Torvalds 已提交
713 714
#endif

715 716 717 718 719 720
#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 */

721 722 723
extern void pci_block_user_cfg_access(struct pci_dev *dev);
extern void pci_unblock_user_cfg_access(struct pci_dev *dev);

724 725 726 727 728
/*
 * 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.
 */
729 730 731 732
#ifdef CONFIG_PCI_DOMAINS
extern int pci_domains_supported;
#else
enum { pci_domains_supported = 0 };
733 734 735 736 737
static inline int pci_domain_nr(struct pci_bus *bus)
{
	return 0;
}

738 739 740 741
static inline int pci_proc_domain(struct pci_bus *bus)
{
	return 0;
}
742
#endif /* CONFIG_PCI_DOMAINS */
L
Linus Torvalds 已提交
743

744
#else /* CONFIG_PCI is not enabled */
L
Linus Torvalds 已提交
745 746 747 748 749 750

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

751 752 753
#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
754
		{ return PCIBIOS_FUNC_NOT_SUPPORTED; }
755 756 757 758

#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
759 760 761
_PCI_NOP_ALL(read, *)
_PCI_NOP_ALL(write,)

762 763 764 765 766 767
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
768

769 770 771 772 773
static inline struct pci_dev *pci_find_slot(unsigned int bus,
					    unsigned int devfn)
{
	return NULL;
}
L
Linus Torvalds 已提交
774

775
static inline struct pci_dev *pci_get_device(unsigned int vendor,
776 777 778 779 780
					     unsigned int device,
					     struct pci_dev *from)
{
	return NULL;
}
781 782

static inline struct pci_dev *pci_get_device_reverse(unsigned int vendor,
783 784 785 786 787
						     unsigned int device,
						     struct pci_dev *from)
{
	return NULL;
}
L
Linus Torvalds 已提交
788

789 790 791 792 793 794 795 796
static inline struct pci_dev *pci_get_subsys(unsigned int vendor,
					     unsigned int device,
					     unsigned int ss_vendor,
					     unsigned int ss_device,
					     struct pci_dev *from)
{
	return NULL;
}
L
Linus Torvalds 已提交
797

798 799 800 801 802
static inline struct pci_dev *pci_get_class(unsigned int class,
					    struct pci_dev *from)
{
	return NULL;
}
L
Linus Torvalds 已提交
803 804

#define pci_dev_present(ids)	(0)
Z
Zhang, Yanmin 已提交
805
#define no_pci_devices()	(1)
A
Alan Cox 已提交
806
#define pci_find_present(ids)	(NULL)
L
Linus Torvalds 已提交
807 808
#define pci_dev_put(dev)	do { } while (0)

809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861
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;
}

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;
}

static inline void pcie_wait_pending_transaction(struct pci_dev *dev)
{ }
L
Linus Torvalds 已提交
862 863

/* Power management related routines */
864 865 866 867 868 869 870 871 872
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
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
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)
{ }
898

899 900
#define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0)

901 902 903 904 905
static inline void pci_block_user_cfg_access(struct pci_dev *dev)
{ }

static inline void pci_unblock_user_cfg_access(struct pci_dev *dev)
{ }
906

R
Randy Dunlap 已提交
907 908 909 910 911 912 913 914 915 916 917
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; }

918
#endif /* CONFIG_PCI */
L
Linus Torvalds 已提交
919

920 921 922
/* Include architecture-dependent settings and functions */

#include <asm/pci.h>
L
Linus Torvalds 已提交
923 924 925

/* these helpers provide future and backwards compatibility
 * for accessing popular PCI BAR info */
926 927 928
#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
929
#define pci_resource_len(dev,bar) \
930 931 932 933 934 935
	((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
936 937 938 939 940

/* 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.
 */
941
static inline void *pci_get_drvdata(struct pci_dev *pdev)
L
Linus Torvalds 已提交
942 943 944 945
{
	return dev_get_drvdata(&pdev->dev);
}

946
static inline void pci_set_drvdata(struct pci_dev *pdev, void *data)
L
Linus Torvalds 已提交
947 948 949 950 951 952 953 954 955 956 957 958
{
	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;
}

959 960 961 962 963 964

/* 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,
965
		const struct resource *rsrc, resource_size_t *start,
966
		resource_size_t *end)
967 968 969 970 971 972 973
{
	*start = rsrc->start;
	*end = rsrc->end;
}
#endif /* HAVE_ARCH_PCI_RESOURCE_TO_USER */


L
Linus Torvalds 已提交
974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990
/*
 *  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 */
991
	pci_fixup_resume,	/* pci_enable_device() time */
L
Linus Torvalds 已提交
992 993 994 995
};

/* Anonymous variables would be nice... */
#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)	\
A
Adrian Bunk 已提交
996
	static const struct pci_fixup __pci_fixup_##name __used		\
L
Linus Torvalds 已提交
997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009
	__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)
1010 1011 1012
#define DECLARE_PCI_FIXUP_RESUME(vendor, device, hook)			\
	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume,			\
			resume##vendor##device##hook, vendor, device, hook)
L
Linus Torvalds 已提交
1013 1014 1015 1016


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

1017
void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen);
A
Al Viro 已提交
1018
void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr);
1019
void __iomem * const *pcim_iomap_table(struct pci_dev *pdev);
A
Al Viro 已提交
1020
int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name);
1021
void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask);
A
Al Viro 已提交
1022

L
Linus Torvalds 已提交
1023
extern int pci_pci_problems;
A
Alan Cox 已提交
1024
#define PCIPCI_FAIL		1	/* No PCI PCI DMA */
L
Linus Torvalds 已提交
1025 1026 1027 1028
#define PCIPCI_TRITON		2
#define PCIPCI_NATOMA		4
#define PCIPCI_VIAETBF		8
#define PCIPCI_VSFX		16
A
Alan Cox 已提交
1029 1030
#define PCIPCI_ALIMAGIK		32	/* Need low latency setting */
#define PCIAGP_FAIL		64	/* No PCI to AGP DMA */
L
Linus Torvalds 已提交
1031

1032 1033 1034
extern unsigned long pci_cardbus_io_size;
extern unsigned long pci_cardbus_mem_size;

1035
extern int pcibios_add_platform_entries(struct pci_dev *dev);
1036

L
Linus Torvalds 已提交
1037 1038
#endif /* __KERNEL__ */
#endif /* LINUX_PCI_H */