include/hw/pci/pci.h

   1 #ifndef QEMU_PCI_H
   2 #define QEMU_PCI_H
   3
   4 #include "qemu-common.h"
   5
   6 #include "hw/qdev.h"
   7 #include "exec/memory.h"
   8 #include "sysemu/dma.h"
   9
  10 /* PCI includes legacy ISA access.  */
  11 #include "hw/isa/isa.h"
  12
  13 #include "hw/pci/pcie.h"
  14
  15 /* PCI bus */
  16
  17 #define PCI_DEVFN(slot, func)   ((((slot) & 0x1f) << 3) | ((func) & 0x07))
  18 #define PCI_SLOT(devfn)         (((devfn) >> 3) & 0x1f)
  19 #define PCI_FUNC(devfn)         ((devfn) & 0x07)
  20 #define PCI_SLOT_MAX            32
  21 #define PCI_FUNC_MAX            8
  22
  23 /* Class, Vendor and Device IDs from Linux's pci_ids.h */
  24 #include "hw/pci/pci_ids.h"
  25
  26 /* QEMU-specific Vendor and Device ID definitions */
  27
  28 /* IBM (0x1014) */
  29 #define PCI_DEVICE_ID_IBM_440GX          0x027f
  30 #define PCI_DEVICE_ID_IBM_OPENPIC2       0xffff
  31
  32 /* Hitachi (0x1054) */
  33 #define PCI_VENDOR_ID_HITACHI            0x1054
  34 #define PCI_DEVICE_ID_HITACHI_SH7751R    0x350e
  35
  36 /* Apple (0x106b) */
  37 #define PCI_DEVICE_ID_APPLE_343S1201     0x0010
  38 #define PCI_DEVICE_ID_APPLE_UNI_N_I_PCI  0x001e
  39 #define PCI_DEVICE_ID_APPLE_UNI_N_PCI    0x001f
  40 #define PCI_DEVICE_ID_APPLE_UNI_N_KEYL   0x0022
  41 #define PCI_DEVICE_ID_APPLE_IPID_USB     0x003f
  42
  43 /* Realtek (0x10ec) */
  44 #define PCI_DEVICE_ID_REALTEK_8029       0x8029
  45
  46 /* Xilinx (0x10ee) */
  47 #define PCI_DEVICE_ID_XILINX_XC2VP30     0x0300
  48
  49 /* Marvell (0x11ab) */
  50 #define PCI_DEVICE_ID_MARVELL_GT6412X    0x4620
  51
  52 /* QEMU/Bochs VGA (0x1234) */
  53 #define PCI_VENDOR_ID_QEMU               0x1234
  54 #define PCI_DEVICE_ID_QEMU_VGA           0x1111
  55
  56 /* VMWare (0x15ad) */
  57 #define PCI_VENDOR_ID_VMWARE             0x15ad
  58 #define PCI_DEVICE_ID_VMWARE_SVGA2       0x0405
  59 #define PCI_DEVICE_ID_VMWARE_SVGA        0x0710
  60 #define PCI_DEVICE_ID_VMWARE_NET         0x0720
  61 #define PCI_DEVICE_ID_VMWARE_SCSI        0x0730
  62 #define PCI_DEVICE_ID_VMWARE_PVSCSI      0x07C0
  63 #define PCI_DEVICE_ID_VMWARE_IDE         0x1729
  64 #define PCI_DEVICE_ID_VMWARE_VMXNET3     0x07B0
  65
  66 /* Intel (0x8086) */
  67 #define PCI_DEVICE_ID_INTEL_82551IT      0x1209
  68 #define PCI_DEVICE_ID_INTEL_82557        0x1229
  69 #define PCI_DEVICE_ID_INTEL_82801IR      0x2922
  70
  71 /* Red Hat / Qumranet (for QEMU) -- see pci-ids.txt */
  72 #define PCI_VENDOR_ID_REDHAT_QUMRANET    0x1af4
  73 #define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
  74 #define PCI_SUBDEVICE_ID_QEMU            0x1100
  75
  76 #define PCI_DEVICE_ID_VIRTIO_NET         0x1000
  77 #define PCI_DEVICE_ID_VIRTIO_BLOCK       0x1001
  78 #define PCI_DEVICE_ID_VIRTIO_BALLOON     0x1002
  79 #define PCI_DEVICE_ID_VIRTIO_CONSOLE     0x1003
  80 #define PCI_DEVICE_ID_VIRTIO_SCSI        0x1004
  81 #define PCI_DEVICE_ID_VIRTIO_RNG         0x1005
  82 #define PCI_DEVICE_ID_VIRTIO_9P          0x1009
  83
  84 #define PCI_VENDOR_ID_REDHAT             0x1b36
  85 #define PCI_DEVICE_ID_REDHAT_BRIDGE      0x0001
  86 #define PCI_DEVICE_ID_REDHAT_SERIAL      0x0002
  87 #define PCI_DEVICE_ID_REDHAT_SERIAL2     0x0003
  88 #define PCI_DEVICE_ID_REDHAT_SERIAL4     0x0004
  89 #define PCI_DEVICE_ID_REDHAT_TEST        0x0005
  90 #define PCI_DEVICE_ID_REDHAT_QXL         0x0100
  91
  92 #define FMT_PCIBUS                      PRIx64
  93
  94 typedef void PCIConfigWriteFunc(PCIDevice *pci_dev,
  95                                 uint32_t address, uint32_t data, int len);
  96 typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev,
  97                                    uint32_t address, int len);
  98 typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num,
  99                                 pcibus_t addr, pcibus_t size, int type);
 100 typedef void PCIUnregisterFunc(PCIDevice *pci_dev);
 101
 102 typedef struct PCIIORegion {
 103     pcibus_t addr; /* current PCI mapping address. -1 means not mapped */
 104 #define PCI_BAR_UNMAPPED (~(pcibus_t)0)
 105     pcibus_t size;
 106     uint8_t type;
 107     MemoryRegion *memory;
 108     MemoryRegion *address_space;
 109 } PCIIORegion;
 110
 111 #define PCI_ROM_SLOT 6
 112 #define PCI_NUM_REGIONS 7
 113
 114 enum {
 115     QEMU_PCI_VGA_MEM,
 116     QEMU_PCI_VGA_IO_LO,
 117     QEMU_PCI_VGA_IO_HI,
 118     QEMU_PCI_VGA_NUM_REGIONS,
 119 };
 120
 121 #define QEMU_PCI_VGA_MEM_BASE 0xa0000
 122 #define QEMU_PCI_VGA_MEM_SIZE 0x20000
 123 #define QEMU_PCI_VGA_IO_LO_BASE 0x3b0
 124 #define QEMU_PCI_VGA_IO_LO_SIZE 0xc
 125 #define QEMU_PCI_VGA_IO_HI_BASE 0x3c0
 126 #define QEMU_PCI_VGA_IO_HI_SIZE 0x20
 127
 128 #include "hw/pci/pci_regs.h"
 129
 130 /* PCI HEADER_TYPE */
 131 #define  PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
 132
 133 /* Size of the standard PCI config header */
 134 #define PCI_CONFIG_HEADER_SIZE 0x40
 135 /* Size of the standard PCI config space */
 136 #define PCI_CONFIG_SPACE_SIZE 0x100
 137 /* Size of the standart PCIe config space: 4KB */
 138 #define PCIE_CONFIG_SPACE_SIZE  0x1000
 139
 140 #define PCI_NUM_PINS 4 /* A-D */
 141
 142 /* Bits in cap_present field. */
 143 enum {
 144     QEMU_PCI_CAP_MSI = 0x1,
 145     QEMU_PCI_CAP_MSIX = 0x2,
 146     QEMU_PCI_CAP_EXPRESS = 0x4,
 147
 148     /* multifunction capable device */
 149 #define QEMU_PCI_CAP_MULTIFUNCTION_BITNR        3
 150     QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR),
 151
 152     /* command register SERR bit enabled */
 153 #define QEMU_PCI_CAP_SERR_BITNR 4
 154     QEMU_PCI_CAP_SERR = (1 << QEMU_PCI_CAP_SERR_BITNR),
 155     /* Standard hot plug controller. */
 156 #define QEMU_PCI_SHPC_BITNR 5
 157     QEMU_PCI_CAP_SHPC = (1 << QEMU_PCI_SHPC_BITNR),
 158 #define QEMU_PCI_SLOTID_BITNR 6
 159     QEMU_PCI_CAP_SLOTID = (1 << QEMU_PCI_SLOTID_BITNR),
 160 };
 161
 162 #define TYPE_PCI_DEVICE "pci-device"
 163 #define PCI_DEVICE(obj) \
 164      OBJECT_CHECK(PCIDevice, (obj), TYPE_PCI_DEVICE)
 165 #define PCI_DEVICE_CLASS(klass) \
 166      OBJECT_CLASS_CHECK(PCIDeviceClass, (klass), TYPE_PCI_DEVICE)
 167 #define PCI_DEVICE_GET_CLASS(obj) \
 168      OBJECT_GET_CLASS(PCIDeviceClass, (obj), TYPE_PCI_DEVICE)
 169
 170 typedef struct PCIINTxRoute {
 171     enum {
 172         PCI_INTX_ENABLED,
 173         PCI_INTX_INVERTED,
 174         PCI_INTX_DISABLED,
 175     } mode;
 176     int irq;
 177 } PCIINTxRoute;
 178
 179 typedef struct PCIDeviceClass {
 180     DeviceClass parent_class;
 181
 182     int (*init)(PCIDevice *dev);
 183     PCIUnregisterFunc *exit;
 184     PCIConfigReadFunc *config_read;
 185     PCIConfigWriteFunc *config_write;
 186
 187     uint16_t vendor_id;
 188     uint16_t device_id;
 189     uint8_t revision;
 190     uint16_t class_id;
 191     uint16_t subsystem_vendor_id;       /* only for header type = 0 */
 192     uint16_t subsystem_id;              /* only for header type = 0 */
 193
 194     /*
 195      * pci-to-pci bridge or normal device.
 196      * This doesn't mean pci host switch.
 197      * When card bus bridge is supported, this would be enhanced.
 198      */
 199     int is_bridge;
 200
 201     /* pcie stuff */
 202     int is_express;   /* is this device pci express? */
 203
 204     /* device isn't hot-pluggable */
 205     int no_hotplug;
 206
 207     /* rom bar */
 208     const char *romfile;
 209 } PCIDeviceClass;
 210
 211 typedef void (*PCIINTxRoutingNotifier)(PCIDevice *dev);
 212 typedef int (*MSIVectorUseNotifier)(PCIDevice *dev, unsigned int vector,
 213                                       MSIMessage msg);
 214 typedef void (*MSIVectorReleaseNotifier)(PCIDevice *dev, unsigned int vector);
 215 typedef void (*MSIVectorPollNotifier)(PCIDevice *dev,
 216                                       unsigned int vector_start,
 217                                       unsigned int vector_end);
 218
 219 struct PCIDevice {
 220     DeviceState qdev;
 221
 222     /* PCI config space */
 223     uint8_t *config;
 224
 225     /* Used to enable config checks on load. Note that writable bits are
 226      * never checked even if set in cmask. */
 227     uint8_t *cmask;
 228
 229     /* Used to implement R/W bytes */
 230     uint8_t *wmask;
 231
 232     /* Used to implement RW1C(Write 1 to Clear) bytes */
 233     uint8_t *w1cmask;
 234
 235     /* Used to allocate config space for capabilities. */
 236     uint8_t *used;
 237
 238     /* the following fields are read only */
 239     PCIBus *bus;
 240     int32_t devfn;
 241     char name[64];
 242     PCIIORegion io_regions[PCI_NUM_REGIONS];
 243     AddressSpace bus_master_as;
 244     MemoryRegion bus_master_enable_region;
 245
 246     /* do not access the following fields */
 247     PCIConfigReadFunc *config_read;
 248     PCIConfigWriteFunc *config_write;
 249
 250     /* Legacy PCI VGA regions */
 251     MemoryRegion *vga_regions[QEMU_PCI_VGA_NUM_REGIONS];
 252     bool has_vga;
 253
 254     /* Current IRQ levels.  Used internally by the generic PCI code.  */
 255     uint8_t irq_state;
 256
 257     /* Capability bits */
 258     uint32_t cap_present;
 259
 260     /* Offset of MSI-X capability in config space */
 261     uint8_t msix_cap;
 262
 263     /* MSI-X entries */
 264     int msix_entries_nr;
 265
 266     /* Space to store MSIX table & pending bit array */
 267     uint8_t *msix_table;
 268     uint8_t *msix_pba;
 269     /* MemoryRegion container for msix exclusive BAR setup */
 270     MemoryRegion msix_exclusive_bar;
 271     /* Memory Regions for MSIX table and pending bit entries. */
 272     MemoryRegion msix_table_mmio;
 273     MemoryRegion msix_pba_mmio;
 274     /* Reference-count for entries actually in use by driver. */
 275     unsigned *msix_entry_used;
 276     /* MSIX function mask set or MSIX disabled */
 277     bool msix_function_masked;
 278     /* Version id needed for VMState */
 279     int32_t version_id;
 280
 281     /* Offset of MSI capability in config space */
 282     uint8_t msi_cap;
 283
 284     /* PCI Express */
 285     PCIExpressDevice exp;
 286
 287     /* SHPC */
 288     SHPCDevice *shpc;
 289
 290     /* Location of option rom */
 291     char *romfile;
 292     bool has_rom;
 293     MemoryRegion rom;
 294     uint32_t rom_bar;
 295
 296     /* INTx routing notifier */
 297     PCIINTxRoutingNotifier intx_routing_notifier;
 298
 299     /* MSI-X notifiers */
 300     MSIVectorUseNotifier msix_vector_use_notifier;
 301     MSIVectorReleaseNotifier msix_vector_release_notifier;
 302     MSIVectorPollNotifier msix_vector_poll_notifier;
 303 };
 304
 305 void pci_register_bar(PCIDevice *pci_dev, int region_num,
 306                       uint8_t attr, MemoryRegion *memory);
 307 void pci_register_vga(PCIDevice *pci_dev, MemoryRegion *mem,
 308                       MemoryRegion *io_lo, MemoryRegion *io_hi);
 309 void pci_unregister_vga(PCIDevice *pci_dev);
 310 pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num);
 311
 312 int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
 313                        uint8_t offset, uint8_t size);
 314
 315 void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
 316
 317 uint8_t pci_find_capability(PCIDevice *pci_dev, uint8_t cap_id);
 318
 319
 320 uint32_t pci_default_read_config(PCIDevice *d,
 321                                  uint32_t address, int len);
 322 void pci_default_write_config(PCIDevice *d,
 323                               uint32_t address, uint32_t val, int len);
 324 void pci_device_save(PCIDevice *s, QEMUFile *f);
 325 int pci_device_load(PCIDevice *s, QEMUFile *f);
 326 MemoryRegion *pci_address_space(PCIDevice *dev);
 327 MemoryRegion *pci_address_space_io(PCIDevice *dev);
 328
 329 typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
 330 typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
 331 typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin);
 332
 333 typedef enum {
 334     PCI_HOTPLUG_DISABLED,
 335     PCI_HOTPLUG_ENABLED,
 336     PCI_COLDPLUG_ENABLED,
 337 } PCIHotplugState;
 338
 339 typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev,
 340                               PCIHotplugState state);
 341
 342 #define TYPE_PCI_BUS "PCI"
 343 #define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS)
 344 #define TYPE_PCIE_BUS "PCIE"
 345
 346 bool pci_bus_is_express(PCIBus *bus);
 347 bool pci_bus_is_root(PCIBus *bus);
 348 void pci_bus_new_inplace(PCIBus *bus, size_t bus_size, DeviceState *parent,
 349                          const char *name,
 350                          MemoryRegion *address_space_mem,
 351                          MemoryRegion *address_space_io,
 352                          uint8_t devfn_min, const char *typename);
 353 PCIBus *pci_bus_new(DeviceState *parent, const char *name,
 354                     MemoryRegion *address_space_mem,
 355                     MemoryRegion *address_space_io,
 356                     uint8_t devfn_min, const char *typename);
 357 void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
 358                   void *irq_opaque, int nirq);
 359 int pci_bus_get_irq_level(PCIBus *bus, int irq_num);
 360 void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *dev);
 361 /* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */
 362 int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin);
 363 PCIBus *pci_register_bus(DeviceState *parent, const char *name,
 364                          pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
 365                          void *irq_opaque,
 366                          MemoryRegion *address_space_mem,
 367                          MemoryRegion *address_space_io,
 368                          uint8_t devfn_min, int nirq, const char *typename);
 369 void pci_bus_set_route_irq_fn(PCIBus *, pci_route_irq_fn);
 370 PCIINTxRoute pci_device_route_intx_to_irq(PCIDevice *dev, int pin);
 371 bool pci_intx_route_changed(PCIINTxRoute *old, PCIINTxRoute *new);
 372 void pci_bus_fire_intx_routing_notifier(PCIBus *bus);
 373 void pci_device_set_intx_routing_notifier(PCIDevice *dev,
 374                                           PCIINTxRoutingNotifier notifier);
 375 void pci_device_reset(PCIDevice *dev);
 376
 377 PCIDevice *pci_nic_init(NICInfo *nd, PCIBus *rootbus,
 378                         const char *default_model,
 379                         const char *default_devaddr);
 380 PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus *rootbus,
 381                                const char *default_model,
 382                                const char *default_devaddr);
 383
 384 PCIDevice *pci_vga_init(PCIBus *bus);
 385
 386 int pci_bus_num(PCIBus *s);
 387 void pci_for_each_device(PCIBus *bus, int bus_num,
 388                          void (*fn)(PCIBus *bus, PCIDevice *d, void *opaque),
 389                          void *opaque);
 390 void pci_for_each_bus_depth_first(PCIBus *bus,
 391                                   void *(*begin)(PCIBus *bus, void *parent_state),
 392                                   void (*end)(PCIBus *bus, void *state),
 393                                   void *parent_state);
 394
 395 /* Use this wrapper when specific scan order is not required. */
 396 static inline
 397 void pci_for_each_bus(PCIBus *bus,
 398                       void (*fn)(PCIBus *bus, void *opaque),
 399                       void *opaque)
 400 {
 401     pci_for_each_bus_depth_first(bus, NULL, fn, opaque);
 402 }
 403
 404 PCIBus *pci_find_primary_bus(void);
 405 PCIBus *pci_device_root_bus(const PCIDevice *d);
 406 const char *pci_root_bus_path(PCIDevice *dev);
 407 PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn);
 408 int pci_qdev_find_device(const char *id, PCIDevice **pdev);
 409 PCIBus *pci_get_bus_devfn(int *devfnp, PCIBus *root, const char *devaddr);
 410 void pci_bus_get_w64_range(PCIBus *bus, Range *range);
 411
 412 int pci_parse_devaddr(const char *addr, int *domp, int *busp,
 413                       unsigned int *slotp, unsigned int *funcp);
 414
 415 void pci_device_deassert_intx(PCIDevice *dev);
 416
 417 typedef AddressSpace *(*PCIIOMMUFunc)(PCIBus *, void *, int);
 418
 419 AddressSpace *pci_device_iommu_address_space(PCIDevice *dev);
 420 void pci_setup_iommu(PCIBus *bus, PCIIOMMUFunc fn, void *opaque);
 421
 422 static inline void
 423 pci_set_byte(uint8_t *config, uint8_t val)
 424 {
 425     *config = val;
 426 }
 427
 428 static inline uint8_t
 429 pci_get_byte(const uint8_t *config)
 430 {
 431     return *config;
 432 }
 433
 434 static inline void
 435 pci_set_word(uint8_t *config, uint16_t val)
 436 {
 437     stw_le_p(config, val);
 438 }
 439
 440 static inline uint16_t
 441 pci_get_word(const uint8_t *config)
 442 {
 443     return lduw_le_p(config);
 444 }
 445
 446 static inline void
 447 pci_set_long(uint8_t *config, uint32_t val)
 448 {
 449     stl_le_p(config, val);
 450 }
 451
 452 static inline uint32_t
 453 pci_get_long(const uint8_t *config)
 454 {
 455     return ldl_le_p(config);
 456 }
 457
 458 static inline void
 459 pci_set_quad(uint8_t *config, uint64_t val)
 460 {
 461     cpu_to_le64w((uint64_t *)config, val);
 462 }
 463
 464 static inline uint64_t
 465 pci_get_quad(const uint8_t *config)
 466 {
 467     return le64_to_cpup((const uint64_t *)config);
 468 }
 469
 470 static inline void
 471 pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val)
 472 {
 473     pci_set_word(&pci_config[PCI_VENDOR_ID], val);
 474 }
 475
 476 static inline void
 477 pci_config_set_device_id(uint8_t *pci_config, uint16_t val)
 478 {
 479     pci_set_word(&pci_config[PCI_DEVICE_ID], val);
 480 }
 481
 482 static inline void
 483 pci_config_set_revision(uint8_t *pci_config, uint8_t val)
 484 {
 485     pci_set_byte(&pci_config[PCI_REVISION_ID], val);
 486 }
 487
 488 static inline void
 489 pci_config_set_class(uint8_t *pci_config, uint16_t val)
 490 {
 491     pci_set_word(&pci_config[PCI_CLASS_DEVICE], val);
 492 }
 493
 494 static inline void
 495 pci_config_set_prog_interface(uint8_t *pci_config, uint8_t val)
 496 {
 497     pci_set_byte(&pci_config[PCI_CLASS_PROG], val);
 498 }
 499
 500 static inline void
 501 pci_config_set_interrupt_pin(uint8_t *pci_config, uint8_t val)
 502 {
 503     pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val);
 504 }
 505
 506 /*
 507  * helper functions to do bit mask operation on configuration space.
 508  * Just to set bit, use test-and-set and discard returned value.
 509  * Just to clear bit, use test-and-clear and discard returned value.
 510  * NOTE: They aren't atomic.
 511  */
 512 static inline uint8_t
 513 pci_byte_test_and_clear_mask(uint8_t *config, uint8_t mask)
 514 {
 515     uint8_t val = pci_get_byte(config);
 516     pci_set_byte(config, val & ~mask);
 517     return val & mask;
 518 }
 519
 520 static inline uint8_t
 521 pci_byte_test_and_set_mask(uint8_t *config, uint8_t mask)
 522 {
 523     uint8_t val = pci_get_byte(config);
 524     pci_set_byte(config, val | mask);
 525     return val & mask;
 526 }
 527
 528 static inline uint16_t
 529 pci_word_test_and_clear_mask(uint8_t *config, uint16_t mask)
 530 {
 531     uint16_t val = pci_get_word(config);
 532     pci_set_word(config, val & ~mask);
 533     return val & mask;
 534 }
 535
 536 static inline uint16_t
 537 pci_word_test_and_set_mask(uint8_t *config, uint16_t mask)
 538 {
 539     uint16_t val = pci_get_word(config);
 540     pci_set_word(config, val | mask);
 541     return val & mask;
 542 }
 543
 544 static inline uint32_t
 545 pci_long_test_and_clear_mask(uint8_t *config, uint32_t mask)
 546 {
 547     uint32_t val = pci_get_long(config);
 548     pci_set_long(config, val & ~mask);
 549     return val & mask;
 550 }
 551
 552 static inline uint32_t
 553 pci_long_test_and_set_mask(uint8_t *config, uint32_t mask)
 554 {
 555     uint32_t val = pci_get_long(config);
 556     pci_set_long(config, val | mask);
 557     return val & mask;
 558 }
 559
 560 static inline uint64_t
 561 pci_quad_test_and_clear_mask(uint8_t *config, uint64_t mask)
 562 {
 563     uint64_t val = pci_get_quad(config);
 564     pci_set_quad(config, val & ~mask);
 565     return val & mask;
 566 }
 567
 568 static inline uint64_t
 569 pci_quad_test_and_set_mask(uint8_t *config, uint64_t mask)
 570 {
 571     uint64_t val = pci_get_quad(config);
 572     pci_set_quad(config, val | mask);
 573     return val & mask;
 574 }
 575
 576 /* Access a register specified by a mask */
 577 static inline void
 578 pci_set_byte_by_mask(uint8_t *config, uint8_t mask, uint8_t reg)
 579 {
 580     uint8_t val = pci_get_byte(config);
 581     uint8_t rval = reg << (ffs(mask) - 1);
 582     pci_set_byte(config, (~mask & val) | (mask & rval));
 583 }
 584
 585 static inline uint8_t
 586 pci_get_byte_by_mask(uint8_t *config, uint8_t mask)
 587 {
 588     uint8_t val = pci_get_byte(config);
 589     return (val & mask) >> (ffs(mask) - 1);
 590 }
 591
 592 static inline void
 593 pci_set_word_by_mask(uint8_t *config, uint16_t mask, uint16_t reg)
 594 {
 595     uint16_t val = pci_get_word(config);
 596     uint16_t rval = reg << (ffs(mask) - 1);
 597     pci_set_word(config, (~mask & val) | (mask & rval));
 598 }
 599
 600 static inline uint16_t
 601 pci_get_word_by_mask(uint8_t *config, uint16_t mask)
 602 {
 603     uint16_t val = pci_get_word(config);
 604     return (val & mask) >> (ffs(mask) - 1);
 605 }
 606
 607 static inline void
 608 pci_set_long_by_mask(uint8_t *config, uint32_t mask, uint32_t reg)
 609 {
 610     uint32_t val = pci_get_long(config);
 611     uint32_t rval = reg << (ffs(mask) - 1);
 612     pci_set_long(config, (~mask & val) | (mask & rval));
 613 }
 614
 615 static inline uint32_t
 616 pci_get_long_by_mask(uint8_t *config, uint32_t mask)
 617 {
 618     uint32_t val = pci_get_long(config);
 619     return (val & mask) >> (ffs(mask) - 1);
 620 }
 621
 622 static inline void
 623 pci_set_quad_by_mask(uint8_t *config, uint64_t mask, uint64_t reg)
 624 {
 625     uint64_t val = pci_get_quad(config);
 626     uint64_t rval = reg << (ffs(mask) - 1);
 627     pci_set_quad(config, (~mask & val) | (mask & rval));
 628 }
 629
 630 static inline uint64_t
 631 pci_get_quad_by_mask(uint8_t *config, uint64_t mask)
 632 {
 633     uint64_t val = pci_get_quad(config);
 634     return (val & mask) >> (ffs(mask) - 1);
 635 }
 636
 637 PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
 638                                     const char *name);
 639 PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
 640                                            bool multifunction,
 641                                            const char *name);
 642 PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name);
 643 PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
 644
 645 qemu_irq pci_allocate_irq(PCIDevice *pci_dev);
 646 void pci_set_irq(PCIDevice *pci_dev, int level);
 647
 648 static inline void pci_irq_assert(PCIDevice *pci_dev)
 649 {
 650     pci_set_irq(pci_dev, 1);
 651 }
 652
 653 static inline void pci_irq_deassert(PCIDevice *pci_dev)
 654 {
 655     pci_set_irq(pci_dev, 0);
 656 }
 657
 658 /*
 659  * FIXME: PCI does not work this way.
 660  * All the callers to this method should be fixed.
 661  */
 662 static inline void pci_irq_pulse(PCIDevice *pci_dev)
 663 {
 664     pci_irq_assert(pci_dev);
 665     pci_irq_deassert(pci_dev);
 666 }
 667
 668 static inline int pci_is_express(const PCIDevice *d)
 669 {
 670     return d->cap_present & QEMU_PCI_CAP_EXPRESS;
 671 }
 672
 673 static inline uint32_t pci_config_size(const PCIDevice *d)
 674 {
 675     return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE;
 676 }
 677
 678 /* DMA access functions */
 679 static inline AddressSpace *pci_get_address_space(PCIDevice *dev)
 680 {
 681     return &dev->bus_master_as;
 682 }
 683
 684 static inline int pci_dma_rw(PCIDevice *dev, dma_addr_t addr,
 685                              void *buf, dma_addr_t len, DMADirection dir)
 686 {
 687     dma_memory_rw(pci_get_address_space(dev), addr, buf, len, dir);
 688     return 0;
 689 }
 690
 691 static inline int pci_dma_read(PCIDevice *dev, dma_addr_t addr,
 692                                void *buf, dma_addr_t len)
 693 {
 694     return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
 695 }
 696
 697 static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr,
 698                                 const void *buf, dma_addr_t len)
 699 {
 700     return pci_dma_rw(dev, addr, (void *) buf, len, DMA_DIRECTION_FROM_DEVICE);
 701 }
 702
 703 #define PCI_DMA_DEFINE_LDST(_l, _s, _bits)                              \
 704     static inline uint##_bits##_t ld##_l##_pci_dma(PCIDevice *dev,      \
 705                                                    dma_addr_t addr)     \
 706     {                                                                   \
 707         return ld##_l##_dma(pci_get_address_space(dev), addr);          \
 708     }                                                                   \
 709     static inline void st##_s##_pci_dma(PCIDevice *dev,                 \
 710                                         dma_addr_t addr, uint##_bits##_t val) \
 711     {                                                                   \
 712         st##_s##_dma(pci_get_address_space(dev), addr, val);            \
 713     }
 714
 715 PCI_DMA_DEFINE_LDST(ub, b, 8);
 716 PCI_DMA_DEFINE_LDST(uw_le, w_le, 16)
 717 PCI_DMA_DEFINE_LDST(l_le, l_le, 32);
 718 PCI_DMA_DEFINE_LDST(q_le, q_le, 64);
 719 PCI_DMA_DEFINE_LDST(uw_be, w_be, 16)
 720 PCI_DMA_DEFINE_LDST(l_be, l_be, 32);
 721 PCI_DMA_DEFINE_LDST(q_be, q_be, 64);
 722
 723 #undef PCI_DMA_DEFINE_LDST
 724
 725 static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr,
 726                                 dma_addr_t *plen, DMADirection dir)
 727 {
 728     void *buf;
 729
 730     buf = dma_memory_map(pci_get_address_space(dev), addr, plen, dir);
 731     return buf;
 732 }
 733
 734 static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len,
 735                                  DMADirection dir, dma_addr_t access_len)
 736 {
 737     dma_memory_unmap(pci_get_address_space(dev), buffer, len, dir, access_len);
 738 }
 739
 740 static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev,
 741                                        int alloc_hint)
 742 {
 743     qemu_sglist_init(qsg, DEVICE(dev), alloc_hint, pci_get_address_space(dev));
 744 }
 745
 746 extern const VMStateDescription vmstate_pci_device;
 747
 748 #define VMSTATE_PCI_DEVICE(_field, _state) {                         \
 749     .name       = (stringify(_field)),                               \
 750     .size       = sizeof(PCIDevice),                                 \
 751     .vmsd       = &vmstate_pci_device,                               \
 752     .flags      = VMS_STRUCT,                                        \
 753     .offset     = vmstate_offset_value(_state, _field, PCIDevice),   \
 754 }
 755
 756 #define VMSTATE_PCI_DEVICE_POINTER(_field, _state) {                 \
 757     .name       = (stringify(_field)),                               \
 758     .size       = sizeof(PCIDevice),                                 \
 759     .vmsd       = &vmstate_pci_device,                               \
 760     .flags      = VMS_STRUCT|VMS_POINTER,                            \
 761     .offset     = vmstate_offset_pointer(_state, _field, PCIDevice), \
 762 }
 763
 764 #endif