1 #ifndef QEMU_PCI_H 2 #define QEMU_PCI_H 3 4 #include "hw/qdev.h" 5 #include "exec/memory.h" 6 #include "sysemu/dma.h" 7 8 /* PCI includes legacy ISA access. */ 9 #include "hw/isa/isa.h" 10 11 #include "hw/pci/pcie.h" 12 13 extern bool pci_available; 14 15 /* PCI bus */ 16 17 #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) 18 #define PCI_BUS_NUM(x) (((x) >> 8) & 0xff) 19 #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f) 20 #define PCI_FUNC(devfn) ((devfn) & 0x07) 21 #define PCI_BUILD_BDF(bus, devfn) ((bus << 8) | (devfn)) 22 #define PCI_BUS_MAX 256 23 #define PCI_DEVFN_MAX 256 24 #define PCI_SLOT_MAX 32 25 #define PCI_FUNC_MAX 8 26 27 /* Class, Vendor and Device IDs from Linux's pci_ids.h */ 28 #include "hw/pci/pci_ids.h" 29 30 /* QEMU-specific Vendor and Device ID definitions */ 31 32 /* IBM (0x1014) */ 33 #define PCI_DEVICE_ID_IBM_440GX 0x027f 34 #define PCI_DEVICE_ID_IBM_OPENPIC2 0xffff 35 36 /* Hitachi (0x1054) */ 37 #define PCI_VENDOR_ID_HITACHI 0x1054 38 #define PCI_DEVICE_ID_HITACHI_SH7751R 0x350e 39 40 /* Apple (0x106b) */ 41 #define PCI_DEVICE_ID_APPLE_343S1201 0x0010 42 #define PCI_DEVICE_ID_APPLE_UNI_N_I_PCI 0x001e 43 #define PCI_DEVICE_ID_APPLE_UNI_N_PCI 0x001f 44 #define PCI_DEVICE_ID_APPLE_UNI_N_KEYL 0x0022 45 #define PCI_DEVICE_ID_APPLE_IPID_USB 0x003f 46 47 /* Realtek (0x10ec) */ 48 #define PCI_DEVICE_ID_REALTEK_8029 0x8029 49 50 /* Xilinx (0x10ee) */ 51 #define PCI_DEVICE_ID_XILINX_XC2VP30 0x0300 52 53 /* Marvell (0x11ab) */ 54 #define PCI_DEVICE_ID_MARVELL_GT6412X 0x4620 55 56 /* QEMU/Bochs VGA (0x1234) */ 57 #define PCI_VENDOR_ID_QEMU 0x1234 58 #define PCI_DEVICE_ID_QEMU_VGA 0x1111 59 60 /* VMWare (0x15ad) */ 61 #define PCI_VENDOR_ID_VMWARE 0x15ad 62 #define PCI_DEVICE_ID_VMWARE_SVGA2 0x0405 63 #define PCI_DEVICE_ID_VMWARE_SVGA 0x0710 64 #define PCI_DEVICE_ID_VMWARE_NET 0x0720 65 #define PCI_DEVICE_ID_VMWARE_SCSI 0x0730 66 #define PCI_DEVICE_ID_VMWARE_PVSCSI 0x07C0 67 #define PCI_DEVICE_ID_VMWARE_IDE 0x1729 68 #define PCI_DEVICE_ID_VMWARE_VMXNET3 0x07B0 69 70 /* Intel (0x8086) */ 71 #define PCI_DEVICE_ID_INTEL_82551IT 0x1209 72 #define PCI_DEVICE_ID_INTEL_82557 0x1229 73 #define PCI_DEVICE_ID_INTEL_82801IR 0x2922 74 75 /* Red Hat / Qumranet (for QEMU) -- see pci-ids.txt */ 76 #define PCI_VENDOR_ID_REDHAT_QUMRANET 0x1af4 77 #define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4 78 #define PCI_SUBDEVICE_ID_QEMU 0x1100 79 80 #define PCI_DEVICE_ID_VIRTIO_NET 0x1000 81 #define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001 82 #define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002 83 #define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003 84 #define PCI_DEVICE_ID_VIRTIO_SCSI 0x1004 85 #define PCI_DEVICE_ID_VIRTIO_RNG 0x1005 86 #define PCI_DEVICE_ID_VIRTIO_9P 0x1009 87 #define PCI_DEVICE_ID_VIRTIO_VSOCK 0x1012 88 89 #define PCI_VENDOR_ID_REDHAT 0x1b36 90 #define PCI_DEVICE_ID_REDHAT_BRIDGE 0x0001 91 #define PCI_DEVICE_ID_REDHAT_SERIAL 0x0002 92 #define PCI_DEVICE_ID_REDHAT_SERIAL2 0x0003 93 #define PCI_DEVICE_ID_REDHAT_SERIAL4 0x0004 94 #define PCI_DEVICE_ID_REDHAT_TEST 0x0005 95 #define PCI_DEVICE_ID_REDHAT_ROCKER 0x0006 96 #define PCI_DEVICE_ID_REDHAT_SDHCI 0x0007 97 #define PCI_DEVICE_ID_REDHAT_PCIE_HOST 0x0008 98 #define PCI_DEVICE_ID_REDHAT_PXB 0x0009 99 #define PCI_DEVICE_ID_REDHAT_BRIDGE_SEAT 0x000a 100 #define PCI_DEVICE_ID_REDHAT_PXB_PCIE 0x000b 101 #define PCI_DEVICE_ID_REDHAT_PCIE_RP 0x000c 102 #define PCI_DEVICE_ID_REDHAT_XHCI 0x000d 103 #define PCI_DEVICE_ID_REDHAT_PCIE_BRIDGE 0x000e 104 #define PCI_DEVICE_ID_REDHAT_MDPY 0x000f 105 #define PCI_DEVICE_ID_REDHAT_QXL 0x0100 106 107 #define FMT_PCIBUS PRIx64 108 109 typedef uint64_t pcibus_t; 110 111 struct PCIHostDeviceAddress { 112 unsigned int domain; 113 unsigned int bus; 114 unsigned int slot; 115 unsigned int function; 116 }; 117 118 typedef void PCIConfigWriteFunc(PCIDevice *pci_dev, 119 uint32_t address, uint32_t data, int len); 120 typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev, 121 uint32_t address, int len); 122 typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num, 123 pcibus_t addr, pcibus_t size, int type); 124 typedef void PCIUnregisterFunc(PCIDevice *pci_dev); 125 126 typedef struct PCIIORegion { 127 pcibus_t addr; /* current PCI mapping address. -1 means not mapped */ 128 #define PCI_BAR_UNMAPPED (~(pcibus_t)0) 129 pcibus_t size; 130 uint8_t type; 131 MemoryRegion *memory; 132 MemoryRegion *address_space; 133 } PCIIORegion; 134 135 #define PCI_ROM_SLOT 6 136 #define PCI_NUM_REGIONS 7 137 138 enum { 139 QEMU_PCI_VGA_MEM, 140 QEMU_PCI_VGA_IO_LO, 141 QEMU_PCI_VGA_IO_HI, 142 QEMU_PCI_VGA_NUM_REGIONS, 143 }; 144 145 #define QEMU_PCI_VGA_MEM_BASE 0xa0000 146 #define QEMU_PCI_VGA_MEM_SIZE 0x20000 147 #define QEMU_PCI_VGA_IO_LO_BASE 0x3b0 148 #define QEMU_PCI_VGA_IO_LO_SIZE 0xc 149 #define QEMU_PCI_VGA_IO_HI_BASE 0x3c0 150 #define QEMU_PCI_VGA_IO_HI_SIZE 0x20 151 152 #include "hw/pci/pci_regs.h" 153 154 /* PCI HEADER_TYPE */ 155 #define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80 156 157 /* Size of the standard PCI config header */ 158 #define PCI_CONFIG_HEADER_SIZE 0x40 159 /* Size of the standard PCI config space */ 160 #define PCI_CONFIG_SPACE_SIZE 0x100 161 /* Size of the standard PCIe config space: 4KB */ 162 #define PCIE_CONFIG_SPACE_SIZE 0x1000 163 164 #define PCI_NUM_PINS 4 /* A-D */ 165 166 /* Bits in cap_present field. */ 167 enum { 168 QEMU_PCI_CAP_MSI = 0x1, 169 QEMU_PCI_CAP_MSIX = 0x2, 170 QEMU_PCI_CAP_EXPRESS = 0x4, 171 172 /* multifunction capable device */ 173 #define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 3 174 QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR), 175 176 /* command register SERR bit enabled */ 177 #define QEMU_PCI_CAP_SERR_BITNR 4 178 QEMU_PCI_CAP_SERR = (1 << QEMU_PCI_CAP_SERR_BITNR), 179 /* Standard hot plug controller. */ 180 #define QEMU_PCI_SHPC_BITNR 5 181 QEMU_PCI_CAP_SHPC = (1 << QEMU_PCI_SHPC_BITNR), 182 #define QEMU_PCI_SLOTID_BITNR 6 183 QEMU_PCI_CAP_SLOTID = (1 << QEMU_PCI_SLOTID_BITNR), 184 /* PCI Express capability - Power Controller Present */ 185 #define QEMU_PCIE_SLTCAP_PCP_BITNR 7 186 QEMU_PCIE_SLTCAP_PCP = (1 << QEMU_PCIE_SLTCAP_PCP_BITNR), 187 /* Link active status in endpoint capability is always set */ 188 #define QEMU_PCIE_LNKSTA_DLLLA_BITNR 8 189 QEMU_PCIE_LNKSTA_DLLLA = (1 << QEMU_PCIE_LNKSTA_DLLLA_BITNR), 190 #define QEMU_PCIE_EXTCAP_INIT_BITNR 9 191 QEMU_PCIE_EXTCAP_INIT = (1 << QEMU_PCIE_EXTCAP_INIT_BITNR), 192 }; 193 194 #define TYPE_PCI_DEVICE "pci-device" 195 #define PCI_DEVICE(obj) \ 196 OBJECT_CHECK(PCIDevice, (obj), TYPE_PCI_DEVICE) 197 #define PCI_DEVICE_CLASS(klass) \ 198 OBJECT_CLASS_CHECK(PCIDeviceClass, (klass), TYPE_PCI_DEVICE) 199 #define PCI_DEVICE_GET_CLASS(obj) \ 200 OBJECT_GET_CLASS(PCIDeviceClass, (obj), TYPE_PCI_DEVICE) 201 202 /* Implemented by devices that can be plugged on PCI Express buses */ 203 #define INTERFACE_PCIE_DEVICE "pci-express-device" 204 205 /* Implemented by devices that can be plugged on Conventional PCI buses */ 206 #define INTERFACE_CONVENTIONAL_PCI_DEVICE "conventional-pci-device" 207 208 typedef struct PCIINTxRoute { 209 enum { 210 PCI_INTX_ENABLED, 211 PCI_INTX_INVERTED, 212 PCI_INTX_DISABLED, 213 } mode; 214 int irq; 215 } PCIINTxRoute; 216 217 typedef struct PCIDeviceClass { 218 DeviceClass parent_class; 219 220 void (*realize)(PCIDevice *dev, Error **errp); 221 PCIUnregisterFunc *exit; 222 PCIConfigReadFunc *config_read; 223 PCIConfigWriteFunc *config_write; 224 225 uint16_t vendor_id; 226 uint16_t device_id; 227 uint8_t revision; 228 uint16_t class_id; 229 uint16_t subsystem_vendor_id; /* only for header type = 0 */ 230 uint16_t subsystem_id; /* only for header type = 0 */ 231 232 /* 233 * pci-to-pci bridge or normal device. 234 * This doesn't mean pci host switch. 235 * When card bus bridge is supported, this would be enhanced. 236 */ 237 int is_bridge; 238 239 /* rom bar */ 240 const char *romfile; 241 } PCIDeviceClass; 242 243 typedef void (*PCIINTxRoutingNotifier)(PCIDevice *dev); 244 typedef int (*MSIVectorUseNotifier)(PCIDevice *dev, unsigned int vector, 245 MSIMessage msg); 246 typedef void (*MSIVectorReleaseNotifier)(PCIDevice *dev, unsigned int vector); 247 typedef void (*MSIVectorPollNotifier)(PCIDevice *dev, 248 unsigned int vector_start, 249 unsigned int vector_end); 250 251 enum PCIReqIDType { 252 PCI_REQ_ID_INVALID = 0, 253 PCI_REQ_ID_BDF, 254 PCI_REQ_ID_SECONDARY_BUS, 255 PCI_REQ_ID_MAX, 256 }; 257 typedef enum PCIReqIDType PCIReqIDType; 258 259 struct PCIReqIDCache { 260 PCIDevice *dev; 261 PCIReqIDType type; 262 }; 263 typedef struct PCIReqIDCache PCIReqIDCache; 264 265 struct PCIDevice { 266 DeviceState qdev; 267 268 /* PCI config space */ 269 uint8_t *config; 270 271 /* Used to enable config checks on load. Note that writable bits are 272 * never checked even if set in cmask. */ 273 uint8_t *cmask; 274 275 /* Used to implement R/W bytes */ 276 uint8_t *wmask; 277 278 /* Used to implement RW1C(Write 1 to Clear) bytes */ 279 uint8_t *w1cmask; 280 281 /* Used to allocate config space for capabilities. */ 282 uint8_t *used; 283 284 /* the following fields are read only */ 285 int32_t devfn; 286 /* Cached device to fetch requester ID from, to avoid the PCI 287 * tree walking every time we invoke PCI request (e.g., 288 * MSI). For conventional PCI root complex, this field is 289 * meaningless. */ 290 PCIReqIDCache requester_id_cache; 291 char name[64]; 292 PCIIORegion io_regions[PCI_NUM_REGIONS]; 293 AddressSpace bus_master_as; 294 MemoryRegion bus_master_container_region; 295 MemoryRegion bus_master_enable_region; 296 297 /* do not access the following fields */ 298 PCIConfigReadFunc *config_read; 299 PCIConfigWriteFunc *config_write; 300 301 /* Legacy PCI VGA regions */ 302 MemoryRegion *vga_regions[QEMU_PCI_VGA_NUM_REGIONS]; 303 bool has_vga; 304 305 /* Current IRQ levels. Used internally by the generic PCI code. */ 306 uint8_t irq_state; 307 308 /* Capability bits */ 309 uint32_t cap_present; 310 311 /* Offset of MSI-X capability in config space */ 312 uint8_t msix_cap; 313 314 /* MSI-X entries */ 315 int msix_entries_nr; 316 317 /* Space to store MSIX table & pending bit array */ 318 uint8_t *msix_table; 319 uint8_t *msix_pba; 320 /* MemoryRegion container for msix exclusive BAR setup */ 321 MemoryRegion msix_exclusive_bar; 322 /* Memory Regions for MSIX table and pending bit entries. */ 323 MemoryRegion msix_table_mmio; 324 MemoryRegion msix_pba_mmio; 325 /* Reference-count for entries actually in use by driver. */ 326 unsigned *msix_entry_used; 327 /* MSIX function mask set or MSIX disabled */ 328 bool msix_function_masked; 329 /* Version id needed for VMState */ 330 int32_t version_id; 331 332 /* Offset of MSI capability in config space */ 333 uint8_t msi_cap; 334 335 /* PCI Express */ 336 PCIExpressDevice exp; 337 338 /* SHPC */ 339 SHPCDevice *shpc; 340 341 /* Location of option rom */ 342 char *romfile; 343 bool has_rom; 344 MemoryRegion rom; 345 uint32_t rom_bar; 346 347 /* INTx routing notifier */ 348 PCIINTxRoutingNotifier intx_routing_notifier; 349 350 /* MSI-X notifiers */ 351 MSIVectorUseNotifier msix_vector_use_notifier; 352 MSIVectorReleaseNotifier msix_vector_release_notifier; 353 MSIVectorPollNotifier msix_vector_poll_notifier; 354 }; 355 356 void pci_register_bar(PCIDevice *pci_dev, int region_num, 357 uint8_t attr, MemoryRegion *memory); 358 void pci_register_vga(PCIDevice *pci_dev, MemoryRegion *mem, 359 MemoryRegion *io_lo, MemoryRegion *io_hi); 360 void pci_unregister_vga(PCIDevice *pci_dev); 361 pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num); 362 363 int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, 364 uint8_t offset, uint8_t size, 365 Error **errp); 366 367 void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size); 368 369 uint8_t pci_find_capability(PCIDevice *pci_dev, uint8_t cap_id); 370 371 372 uint32_t pci_default_read_config(PCIDevice *d, 373 uint32_t address, int len); 374 void pci_default_write_config(PCIDevice *d, 375 uint32_t address, uint32_t val, int len); 376 void pci_device_save(PCIDevice *s, QEMUFile *f); 377 int pci_device_load(PCIDevice *s, QEMUFile *f); 378 MemoryRegion *pci_address_space(PCIDevice *dev); 379 MemoryRegion *pci_address_space_io(PCIDevice *dev); 380 381 /* 382 * Should not normally be used by devices. For use by sPAPR target 383 * where QEMU emulates firmware. 384 */ 385 int pci_bar(PCIDevice *d, int reg); 386 387 typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level); 388 typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num); 389 typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin); 390 391 #define TYPE_PCI_BUS "PCI" 392 #define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS) 393 #define PCI_BUS_CLASS(klass) OBJECT_CLASS_CHECK(PCIBusClass, (klass), TYPE_PCI_BUS) 394 #define PCI_BUS_GET_CLASS(obj) OBJECT_GET_CLASS(PCIBusClass, (obj), TYPE_PCI_BUS) 395 #define TYPE_PCIE_BUS "PCIE" 396 397 bool pci_bus_is_express(PCIBus *bus); 398 bool pci_bus_allows_extended_config_space(PCIBus *bus); 399 400 void pci_root_bus_new_inplace(PCIBus *bus, size_t bus_size, DeviceState *parent, 401 const char *name, 402 MemoryRegion *address_space_mem, 403 MemoryRegion *address_space_io, 404 uint8_t devfn_min, const char *typename); 405 PCIBus *pci_root_bus_new(DeviceState *parent, const char *name, 406 MemoryRegion *address_space_mem, 407 MemoryRegion *address_space_io, 408 uint8_t devfn_min, const char *typename); 409 void pci_root_bus_cleanup(PCIBus *bus); 410 void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, 411 void *irq_opaque, int nirq); 412 void pci_bus_irqs_cleanup(PCIBus *bus); 413 int pci_bus_get_irq_level(PCIBus *bus, int irq_num); 414 /* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */ 415 static inline int pci_swizzle(int slot, int pin) 416 { 417 return (slot + pin) % PCI_NUM_PINS; 418 } 419 int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin); 420 PCIBus *pci_register_root_bus(DeviceState *parent, const char *name, 421 pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, 422 void *irq_opaque, 423 MemoryRegion *address_space_mem, 424 MemoryRegion *address_space_io, 425 uint8_t devfn_min, int nirq, 426 const char *typename); 427 void pci_unregister_root_bus(PCIBus *bus); 428 void pci_bus_set_route_irq_fn(PCIBus *, pci_route_irq_fn); 429 PCIINTxRoute pci_device_route_intx_to_irq(PCIDevice *dev, int pin); 430 bool pci_intx_route_changed(PCIINTxRoute *old, PCIINTxRoute *new); 431 void pci_bus_fire_intx_routing_notifier(PCIBus *bus); 432 void pci_device_set_intx_routing_notifier(PCIDevice *dev, 433 PCIINTxRoutingNotifier notifier); 434 void pci_device_reset(PCIDevice *dev); 435 436 PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus *rootbus, 437 const char *default_model, 438 const char *default_devaddr); 439 440 PCIDevice *pci_vga_init(PCIBus *bus); 441 442 static inline PCIBus *pci_get_bus(const PCIDevice *dev) 443 { 444 return PCI_BUS(qdev_get_parent_bus(DEVICE(dev))); 445 } 446 int pci_bus_num(PCIBus *s); 447 static inline int pci_dev_bus_num(const PCIDevice *dev) 448 { 449 return pci_bus_num(pci_get_bus(dev)); 450 } 451 452 int pci_bus_numa_node(PCIBus *bus); 453 void pci_for_each_device(PCIBus *bus, int bus_num, 454 void (*fn)(PCIBus *bus, PCIDevice *d, void *opaque), 455 void *opaque); 456 void pci_for_each_device_reverse(PCIBus *bus, int bus_num, 457 void (*fn)(PCIBus *bus, PCIDevice *d, 458 void *opaque), 459 void *opaque); 460 void pci_for_each_bus_depth_first(PCIBus *bus, 461 void *(*begin)(PCIBus *bus, void *parent_state), 462 void (*end)(PCIBus *bus, void *state), 463 void *parent_state); 464 PCIDevice *pci_get_function_0(PCIDevice *pci_dev); 465 466 /* Use this wrapper when specific scan order is not required. */ 467 static inline 468 void pci_for_each_bus(PCIBus *bus, 469 void (*fn)(PCIBus *bus, void *opaque), 470 void *opaque) 471 { 472 pci_for_each_bus_depth_first(bus, NULL, fn, opaque); 473 } 474 475 PCIBus *pci_device_root_bus(const PCIDevice *d); 476 const char *pci_root_bus_path(PCIDevice *dev); 477 PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn); 478 int pci_qdev_find_device(const char *id, PCIDevice **pdev); 479 void pci_bus_get_w64_range(PCIBus *bus, Range *range); 480 481 void pci_device_deassert_intx(PCIDevice *dev); 482 483 typedef AddressSpace *(*PCIIOMMUFunc)(PCIBus *, void *, int); 484 485 AddressSpace *pci_device_iommu_address_space(PCIDevice *dev); 486 void pci_setup_iommu(PCIBus *bus, PCIIOMMUFunc fn, void *opaque); 487 488 static inline void 489 pci_set_byte(uint8_t *config, uint8_t val) 490 { 491 *config = val; 492 } 493 494 static inline uint8_t 495 pci_get_byte(const uint8_t *config) 496 { 497 return *config; 498 } 499 500 static inline void 501 pci_set_word(uint8_t *config, uint16_t val) 502 { 503 stw_le_p(config, val); 504 } 505 506 static inline uint16_t 507 pci_get_word(const uint8_t *config) 508 { 509 return lduw_le_p(config); 510 } 511 512 static inline void 513 pci_set_long(uint8_t *config, uint32_t val) 514 { 515 stl_le_p(config, val); 516 } 517 518 static inline uint32_t 519 pci_get_long(const uint8_t *config) 520 { 521 return ldl_le_p(config); 522 } 523 524 /* 525 * PCI capabilities and/or their fields 526 * are generally DWORD aligned only so 527 * mechanism used by pci_set/get_quad() 528 * must be tolerant to unaligned pointers 529 * 530 */ 531 static inline void 532 pci_set_quad(uint8_t *config, uint64_t val) 533 { 534 stq_le_p(config, val); 535 } 536 537 static inline uint64_t 538 pci_get_quad(const uint8_t *config) 539 { 540 return ldq_le_p(config); 541 } 542 543 static inline void 544 pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val) 545 { 546 pci_set_word(&pci_config[PCI_VENDOR_ID], val); 547 } 548 549 static inline void 550 pci_config_set_device_id(uint8_t *pci_config, uint16_t val) 551 { 552 pci_set_word(&pci_config[PCI_DEVICE_ID], val); 553 } 554 555 static inline void 556 pci_config_set_revision(uint8_t *pci_config, uint8_t val) 557 { 558 pci_set_byte(&pci_config[PCI_REVISION_ID], val); 559 } 560 561 static inline void 562 pci_config_set_class(uint8_t *pci_config, uint16_t val) 563 { 564 pci_set_word(&pci_config[PCI_CLASS_DEVICE], val); 565 } 566 567 static inline void 568 pci_config_set_prog_interface(uint8_t *pci_config, uint8_t val) 569 { 570 pci_set_byte(&pci_config[PCI_CLASS_PROG], val); 571 } 572 573 static inline void 574 pci_config_set_interrupt_pin(uint8_t *pci_config, uint8_t val) 575 { 576 pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val); 577 } 578 579 /* 580 * helper functions to do bit mask operation on configuration space. 581 * Just to set bit, use test-and-set and discard returned value. 582 * Just to clear bit, use test-and-clear and discard returned value. 583 * NOTE: They aren't atomic. 584 */ 585 static inline uint8_t 586 pci_byte_test_and_clear_mask(uint8_t *config, uint8_t mask) 587 { 588 uint8_t val = pci_get_byte(config); 589 pci_set_byte(config, val & ~mask); 590 return val & mask; 591 } 592 593 static inline uint8_t 594 pci_byte_test_and_set_mask(uint8_t *config, uint8_t mask) 595 { 596 uint8_t val = pci_get_byte(config); 597 pci_set_byte(config, val | mask); 598 return val & mask; 599 } 600 601 static inline uint16_t 602 pci_word_test_and_clear_mask(uint8_t *config, uint16_t mask) 603 { 604 uint16_t val = pci_get_word(config); 605 pci_set_word(config, val & ~mask); 606 return val & mask; 607 } 608 609 static inline uint16_t 610 pci_word_test_and_set_mask(uint8_t *config, uint16_t mask) 611 { 612 uint16_t val = pci_get_word(config); 613 pci_set_word(config, val | mask); 614 return val & mask; 615 } 616 617 static inline uint32_t 618 pci_long_test_and_clear_mask(uint8_t *config, uint32_t mask) 619 { 620 uint32_t val = pci_get_long(config); 621 pci_set_long(config, val & ~mask); 622 return val & mask; 623 } 624 625 static inline uint32_t 626 pci_long_test_and_set_mask(uint8_t *config, uint32_t mask) 627 { 628 uint32_t val = pci_get_long(config); 629 pci_set_long(config, val | mask); 630 return val & mask; 631 } 632 633 static inline uint64_t 634 pci_quad_test_and_clear_mask(uint8_t *config, uint64_t mask) 635 { 636 uint64_t val = pci_get_quad(config); 637 pci_set_quad(config, val & ~mask); 638 return val & mask; 639 } 640 641 static inline uint64_t 642 pci_quad_test_and_set_mask(uint8_t *config, uint64_t mask) 643 { 644 uint64_t val = pci_get_quad(config); 645 pci_set_quad(config, val | mask); 646 return val & mask; 647 } 648 649 /* Access a register specified by a mask */ 650 static inline void 651 pci_set_byte_by_mask(uint8_t *config, uint8_t mask, uint8_t reg) 652 { 653 uint8_t val = pci_get_byte(config); 654 uint8_t rval = reg << ctz32(mask); 655 pci_set_byte(config, (~mask & val) | (mask & rval)); 656 } 657 658 static inline uint8_t 659 pci_get_byte_by_mask(uint8_t *config, uint8_t mask) 660 { 661 uint8_t val = pci_get_byte(config); 662 return (val & mask) >> ctz32(mask); 663 } 664 665 static inline void 666 pci_set_word_by_mask(uint8_t *config, uint16_t mask, uint16_t reg) 667 { 668 uint16_t val = pci_get_word(config); 669 uint16_t rval = reg << ctz32(mask); 670 pci_set_word(config, (~mask & val) | (mask & rval)); 671 } 672 673 static inline uint16_t 674 pci_get_word_by_mask(uint8_t *config, uint16_t mask) 675 { 676 uint16_t val = pci_get_word(config); 677 return (val & mask) >> ctz32(mask); 678 } 679 680 static inline void 681 pci_set_long_by_mask(uint8_t *config, uint32_t mask, uint32_t reg) 682 { 683 uint32_t val = pci_get_long(config); 684 uint32_t rval = reg << ctz32(mask); 685 pci_set_long(config, (~mask & val) | (mask & rval)); 686 } 687 688 static inline uint32_t 689 pci_get_long_by_mask(uint8_t *config, uint32_t mask) 690 { 691 uint32_t val = pci_get_long(config); 692 return (val & mask) >> ctz32(mask); 693 } 694 695 static inline void 696 pci_set_quad_by_mask(uint8_t *config, uint64_t mask, uint64_t reg) 697 { 698 uint64_t val = pci_get_quad(config); 699 uint64_t rval = reg << ctz32(mask); 700 pci_set_quad(config, (~mask & val) | (mask & rval)); 701 } 702 703 static inline uint64_t 704 pci_get_quad_by_mask(uint8_t *config, uint64_t mask) 705 { 706 uint64_t val = pci_get_quad(config); 707 return (val & mask) >> ctz32(mask); 708 } 709 710 PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction, 711 const char *name); 712 PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn, 713 bool multifunction, 714 const char *name); 715 PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name); 716 PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name); 717 718 void lsi53c8xx_handle_legacy_cmdline(DeviceState *lsi_dev); 719 720 qemu_irq pci_allocate_irq(PCIDevice *pci_dev); 721 void pci_set_irq(PCIDevice *pci_dev, int level); 722 723 static inline void pci_irq_assert(PCIDevice *pci_dev) 724 { 725 pci_set_irq(pci_dev, 1); 726 } 727 728 static inline void pci_irq_deassert(PCIDevice *pci_dev) 729 { 730 pci_set_irq(pci_dev, 0); 731 } 732 733 /* 734 * FIXME: PCI does not work this way. 735 * All the callers to this method should be fixed. 736 */ 737 static inline void pci_irq_pulse(PCIDevice *pci_dev) 738 { 739 pci_irq_assert(pci_dev); 740 pci_irq_deassert(pci_dev); 741 } 742 743 static inline int pci_is_express(const PCIDevice *d) 744 { 745 return d->cap_present & QEMU_PCI_CAP_EXPRESS; 746 } 747 748 static inline int pci_is_express_downstream_port(const PCIDevice *d) 749 { 750 uint8_t type; 751 752 if (!pci_is_express(d) || !d->exp.exp_cap) { 753 return 0; 754 } 755 756 type = pcie_cap_get_type(d); 757 758 return type == PCI_EXP_TYPE_DOWNSTREAM || type == PCI_EXP_TYPE_ROOT_PORT; 759 } 760 761 static inline uint32_t pci_config_size(const PCIDevice *d) 762 { 763 return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE; 764 } 765 766 static inline uint16_t pci_get_bdf(PCIDevice *dev) 767 { 768 return PCI_BUILD_BDF(pci_bus_num(pci_get_bus(dev)), dev->devfn); 769 } 770 771 uint16_t pci_requester_id(PCIDevice *dev); 772 773 /* DMA access functions */ 774 static inline AddressSpace *pci_get_address_space(PCIDevice *dev) 775 { 776 return &dev->bus_master_as; 777 } 778 779 static inline int pci_dma_rw(PCIDevice *dev, dma_addr_t addr, 780 void *buf, dma_addr_t len, DMADirection dir) 781 { 782 dma_memory_rw(pci_get_address_space(dev), addr, buf, len, dir); 783 return 0; 784 } 785 786 static inline int pci_dma_read(PCIDevice *dev, dma_addr_t addr, 787 void *buf, dma_addr_t len) 788 { 789 return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE); 790 } 791 792 static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr, 793 const void *buf, dma_addr_t len) 794 { 795 return pci_dma_rw(dev, addr, (void *) buf, len, DMA_DIRECTION_FROM_DEVICE); 796 } 797 798 #define PCI_DMA_DEFINE_LDST(_l, _s, _bits) \ 799 static inline uint##_bits##_t ld##_l##_pci_dma(PCIDevice *dev, \ 800 dma_addr_t addr) \ 801 { \ 802 return ld##_l##_dma(pci_get_address_space(dev), addr); \ 803 } \ 804 static inline void st##_s##_pci_dma(PCIDevice *dev, \ 805 dma_addr_t addr, uint##_bits##_t val) \ 806 { \ 807 st##_s##_dma(pci_get_address_space(dev), addr, val); \ 808 } 809 810 PCI_DMA_DEFINE_LDST(ub, b, 8); 811 PCI_DMA_DEFINE_LDST(uw_le, w_le, 16) 812 PCI_DMA_DEFINE_LDST(l_le, l_le, 32); 813 PCI_DMA_DEFINE_LDST(q_le, q_le, 64); 814 PCI_DMA_DEFINE_LDST(uw_be, w_be, 16) 815 PCI_DMA_DEFINE_LDST(l_be, l_be, 32); 816 PCI_DMA_DEFINE_LDST(q_be, q_be, 64); 817 818 #undef PCI_DMA_DEFINE_LDST 819 820 static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr, 821 dma_addr_t *plen, DMADirection dir) 822 { 823 void *buf; 824 825 buf = dma_memory_map(pci_get_address_space(dev), addr, plen, dir); 826 return buf; 827 } 828 829 static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len, 830 DMADirection dir, dma_addr_t access_len) 831 { 832 dma_memory_unmap(pci_get_address_space(dev), buffer, len, dir, access_len); 833 } 834 835 static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev, 836 int alloc_hint) 837 { 838 qemu_sglist_init(qsg, DEVICE(dev), alloc_hint, pci_get_address_space(dev)); 839 } 840 841 extern const VMStateDescription vmstate_pci_device; 842 843 #define VMSTATE_PCI_DEVICE(_field, _state) { \ 844 .name = (stringify(_field)), \ 845 .size = sizeof(PCIDevice), \ 846 .vmsd = &vmstate_pci_device, \ 847 .flags = VMS_STRUCT, \ 848 .offset = vmstate_offset_value(_state, _field, PCIDevice), \ 849 } 850 851 #define VMSTATE_PCI_DEVICE_POINTER(_field, _state) { \ 852 .name = (stringify(_field)), \ 853 .size = sizeof(PCIDevice), \ 854 .vmsd = &vmstate_pci_device, \ 855 .flags = VMS_STRUCT|VMS_POINTER, \ 856 .offset = vmstate_offset_pointer(_state, _field, PCIDevice), \ 857 } 858 859 MSIMessage pci_get_msi_message(PCIDevice *dev, int vector); 860 861 #endif 862