5 #include "exec/memory.h"
6 #include "sysemu/dma.h"
8 /* PCI includes legacy ISA access. */
9 #include "hw/isa/isa.h"
11 #include "hw/pci/pcie.h"
15 #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
16 #define PCI_BUS_NUM(x) (((x) >> 8) & 0xff)
17 #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
18 #define PCI_FUNC(devfn) ((devfn) & 0x07)
19 #define PCI_BUILD_BDF(bus, devfn) ((bus << 8) | (devfn))
20 #define PCI_BUS_MAX 256
21 #define PCI_DEVFN_MAX 256
22 #define PCI_SLOT_MAX 32
23 #define PCI_FUNC_MAX 8
25 /* Class, Vendor and Device IDs from Linux's pci_ids.h */
26 #include "hw/pci/pci_ids.h"
28 /* QEMU-specific Vendor and Device ID definitions */
31 #define PCI_DEVICE_ID_IBM_440GX 0x027f
32 #define PCI_DEVICE_ID_IBM_OPENPIC2 0xffff
34 /* Hitachi (0x1054) */
35 #define PCI_VENDOR_ID_HITACHI 0x1054
36 #define PCI_DEVICE_ID_HITACHI_SH7751R 0x350e
39 #define PCI_DEVICE_ID_APPLE_343S1201 0x0010
40 #define PCI_DEVICE_ID_APPLE_UNI_N_I_PCI 0x001e
41 #define PCI_DEVICE_ID_APPLE_UNI_N_PCI 0x001f
42 #define PCI_DEVICE_ID_APPLE_UNI_N_KEYL 0x0022
43 #define PCI_DEVICE_ID_APPLE_IPID_USB 0x003f
45 /* Realtek (0x10ec) */
46 #define PCI_DEVICE_ID_REALTEK_8029 0x8029
49 #define PCI_DEVICE_ID_XILINX_XC2VP30 0x0300
51 /* Marvell (0x11ab) */
52 #define PCI_DEVICE_ID_MARVELL_GT6412X 0x4620
54 /* QEMU/Bochs VGA (0x1234) */
55 #define PCI_VENDOR_ID_QEMU 0x1234
56 #define PCI_DEVICE_ID_QEMU_VGA 0x1111
59 #define PCI_VENDOR_ID_VMWARE 0x15ad
60 #define PCI_DEVICE_ID_VMWARE_SVGA2 0x0405
61 #define PCI_DEVICE_ID_VMWARE_SVGA 0x0710
62 #define PCI_DEVICE_ID_VMWARE_NET 0x0720
63 #define PCI_DEVICE_ID_VMWARE_SCSI 0x0730
64 #define PCI_DEVICE_ID_VMWARE_PVSCSI 0x07C0
65 #define PCI_DEVICE_ID_VMWARE_IDE 0x1729
66 #define PCI_DEVICE_ID_VMWARE_VMXNET3 0x07B0
69 #define PCI_DEVICE_ID_INTEL_82551IT 0x1209
70 #define PCI_DEVICE_ID_INTEL_82557 0x1229
71 #define PCI_DEVICE_ID_INTEL_82801IR 0x2922
73 /* Red Hat / Qumranet (for QEMU) -- see pci-ids.txt */
74 #define PCI_VENDOR_ID_REDHAT_QUMRANET 0x1af4
75 #define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
76 #define PCI_SUBDEVICE_ID_QEMU 0x1100
78 #define PCI_DEVICE_ID_VIRTIO_NET 0x1000
79 #define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001
80 #define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002
81 #define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003
82 #define PCI_DEVICE_ID_VIRTIO_SCSI 0x1004
83 #define PCI_DEVICE_ID_VIRTIO_RNG 0x1005
84 #define PCI_DEVICE_ID_VIRTIO_9P 0x1009
85 #define PCI_DEVICE_ID_VIRTIO_VSOCK 0x1012
87 #define PCI_VENDOR_ID_REDHAT 0x1b36
88 #define PCI_DEVICE_ID_REDHAT_BRIDGE 0x0001
89 #define PCI_DEVICE_ID_REDHAT_SERIAL 0x0002
90 #define PCI_DEVICE_ID_REDHAT_SERIAL2 0x0003
91 #define PCI_DEVICE_ID_REDHAT_SERIAL4 0x0004
92 #define PCI_DEVICE_ID_REDHAT_TEST 0x0005
93 #define PCI_DEVICE_ID_REDHAT_ROCKER 0x0006
94 #define PCI_DEVICE_ID_REDHAT_SDHCI 0x0007
95 #define PCI_DEVICE_ID_REDHAT_PCIE_HOST 0x0008
96 #define PCI_DEVICE_ID_REDHAT_PXB 0x0009
97 #define PCI_DEVICE_ID_REDHAT_BRIDGE_SEAT 0x000a
98 #define PCI_DEVICE_ID_REDHAT_PXB_PCIE 0x000b
99 #define PCI_DEVICE_ID_REDHAT_PCIE_RP 0x000c
100 #define PCI_DEVICE_ID_REDHAT_XHCI 0x000d
101 #define PCI_DEVICE_ID_REDHAT_QXL 0x0100
103 #define FMT_PCIBUS PRIx64
105 typedef uint64_t pcibus_t;
107 struct PCIHostDeviceAddress {
111 unsigned int function;
114 typedef void PCIConfigWriteFunc(PCIDevice *pci_dev,
115 uint32_t address, uint32_t data, int len);
116 typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev,
117 uint32_t address, int len);
118 typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num,
119 pcibus_t addr, pcibus_t size, int type);
120 typedef void PCIUnregisterFunc(PCIDevice *pci_dev);
122 typedef struct PCIIORegion {
123 pcibus_t addr; /* current PCI mapping address. -1 means not mapped */
124 #define PCI_BAR_UNMAPPED (~(pcibus_t)0)
127 MemoryRegion *memory;
128 MemoryRegion *address_space;
131 #define PCI_ROM_SLOT 6
132 #define PCI_NUM_REGIONS 7
138 QEMU_PCI_VGA_NUM_REGIONS,
141 #define QEMU_PCI_VGA_MEM_BASE 0xa0000
142 #define QEMU_PCI_VGA_MEM_SIZE 0x20000
143 #define QEMU_PCI_VGA_IO_LO_BASE 0x3b0
144 #define QEMU_PCI_VGA_IO_LO_SIZE 0xc
145 #define QEMU_PCI_VGA_IO_HI_BASE 0x3c0
146 #define QEMU_PCI_VGA_IO_HI_SIZE 0x20
148 #include "hw/pci/pci_regs.h"
150 /* PCI HEADER_TYPE */
151 #define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
153 /* Size of the standard PCI config header */
154 #define PCI_CONFIG_HEADER_SIZE 0x40
155 /* Size of the standard PCI config space */
156 #define PCI_CONFIG_SPACE_SIZE 0x100
157 /* Size of the standard PCIe config space: 4KB */
158 #define PCIE_CONFIG_SPACE_SIZE 0x1000
160 #define PCI_NUM_PINS 4 /* A-D */
162 /* Bits in cap_present field. */
164 QEMU_PCI_CAP_MSI = 0x1,
165 QEMU_PCI_CAP_MSIX = 0x2,
166 QEMU_PCI_CAP_EXPRESS = 0x4,
168 /* multifunction capable device */
169 #define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 3
170 QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR),
172 /* command register SERR bit enabled */
173 #define QEMU_PCI_CAP_SERR_BITNR 4
174 QEMU_PCI_CAP_SERR = (1 << QEMU_PCI_CAP_SERR_BITNR),
175 /* Standard hot plug controller. */
176 #define QEMU_PCI_SHPC_BITNR 5
177 QEMU_PCI_CAP_SHPC = (1 << QEMU_PCI_SHPC_BITNR),
178 #define QEMU_PCI_SLOTID_BITNR 6
179 QEMU_PCI_CAP_SLOTID = (1 << QEMU_PCI_SLOTID_BITNR),
180 /* PCI Express capability - Power Controller Present */
181 #define QEMU_PCIE_SLTCAP_PCP_BITNR 7
182 QEMU_PCIE_SLTCAP_PCP = (1 << QEMU_PCIE_SLTCAP_PCP_BITNR),
183 /* Link active status in endpoint capability is always set */
184 #define QEMU_PCIE_LNKSTA_DLLLA_BITNR 8
185 QEMU_PCIE_LNKSTA_DLLLA = (1 << QEMU_PCIE_LNKSTA_DLLLA_BITNR),
186 #define QEMU_PCIE_EXTCAP_INIT_BITNR 9
187 QEMU_PCIE_EXTCAP_INIT = (1 << QEMU_PCIE_EXTCAP_INIT_BITNR),
190 #define TYPE_PCI_DEVICE "pci-device"
191 #define PCI_DEVICE(obj) \
192 OBJECT_CHECK(PCIDevice, (obj), TYPE_PCI_DEVICE)
193 #define PCI_DEVICE_CLASS(klass) \
194 OBJECT_CLASS_CHECK(PCIDeviceClass, (klass), TYPE_PCI_DEVICE)
195 #define PCI_DEVICE_GET_CLASS(obj) \
196 OBJECT_GET_CLASS(PCIDeviceClass, (obj), TYPE_PCI_DEVICE)
198 typedef struct PCIINTxRoute {
207 typedef struct PCIDeviceClass {
208 DeviceClass parent_class;
210 void (*realize)(PCIDevice *dev, Error **errp);
211 int (*init)(PCIDevice *dev);/* TODO convert to realize() and remove */
212 PCIUnregisterFunc *exit;
213 PCIConfigReadFunc *config_read;
214 PCIConfigWriteFunc *config_write;
220 uint16_t subsystem_vendor_id; /* only for header type = 0 */
221 uint16_t subsystem_id; /* only for header type = 0 */
224 * pci-to-pci bridge or normal device.
225 * This doesn't mean pci host switch.
226 * When card bus bridge is supported, this would be enhanced.
231 int is_express; /* is this device pci express? */
237 typedef void (*PCIINTxRoutingNotifier)(PCIDevice *dev);
238 typedef int (*MSIVectorUseNotifier)(PCIDevice *dev, unsigned int vector,
240 typedef void (*MSIVectorReleaseNotifier)(PCIDevice *dev, unsigned int vector);
241 typedef void (*MSIVectorPollNotifier)(PCIDevice *dev,
242 unsigned int vector_start,
243 unsigned int vector_end);
246 PCI_REQ_ID_INVALID = 0,
248 PCI_REQ_ID_SECONDARY_BUS,
251 typedef enum PCIReqIDType PCIReqIDType;
253 struct PCIReqIDCache {
257 typedef struct PCIReqIDCache PCIReqIDCache;
262 /* PCI config space */
265 /* Used to enable config checks on load. Note that writable bits are
266 * never checked even if set in cmask. */
269 /* Used to implement R/W bytes */
272 /* Used to implement RW1C(Write 1 to Clear) bytes */
275 /* Used to allocate config space for capabilities. */
278 /* the following fields are read only */
281 /* Cached device to fetch requester ID from, to avoid the PCI
282 * tree walking every time we invoke PCI request (e.g.,
283 * MSI). For conventional PCI root complex, this field is
285 PCIReqIDCache requester_id_cache;
287 PCIIORegion io_regions[PCI_NUM_REGIONS];
288 AddressSpace bus_master_as;
289 MemoryRegion bus_master_container_region;
290 MemoryRegion bus_master_enable_region;
292 /* do not access the following fields */
293 PCIConfigReadFunc *config_read;
294 PCIConfigWriteFunc *config_write;
296 /* Legacy PCI VGA regions */
297 MemoryRegion *vga_regions[QEMU_PCI_VGA_NUM_REGIONS];
300 /* Current IRQ levels. Used internally by the generic PCI code. */
303 /* Capability bits */
304 uint32_t cap_present;
306 /* Offset of MSI-X capability in config space */
312 /* Space to store MSIX table & pending bit array */
315 /* MemoryRegion container for msix exclusive BAR setup */
316 MemoryRegion msix_exclusive_bar;
317 /* Memory Regions for MSIX table and pending bit entries. */
318 MemoryRegion msix_table_mmio;
319 MemoryRegion msix_pba_mmio;
320 /* Reference-count for entries actually in use by driver. */
321 unsigned *msix_entry_used;
322 /* MSIX function mask set or MSIX disabled */
323 bool msix_function_masked;
324 /* Version id needed for VMState */
327 /* Offset of MSI capability in config space */
331 PCIExpressDevice exp;
336 /* Location of option rom */
342 /* INTx routing notifier */
343 PCIINTxRoutingNotifier intx_routing_notifier;
345 /* MSI-X notifiers */
346 MSIVectorUseNotifier msix_vector_use_notifier;
347 MSIVectorReleaseNotifier msix_vector_release_notifier;
348 MSIVectorPollNotifier msix_vector_poll_notifier;
351 void pci_register_bar(PCIDevice *pci_dev, int region_num,
352 uint8_t attr, MemoryRegion *memory);
353 void pci_register_vga(PCIDevice *pci_dev, MemoryRegion *mem,
354 MemoryRegion *io_lo, MemoryRegion *io_hi);
355 void pci_unregister_vga(PCIDevice *pci_dev);
356 pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num);
358 int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
359 uint8_t offset, uint8_t size,
362 void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
364 uint8_t pci_find_capability(PCIDevice *pci_dev, uint8_t cap_id);
367 uint32_t pci_default_read_config(PCIDevice *d,
368 uint32_t address, int len);
369 void pci_default_write_config(PCIDevice *d,
370 uint32_t address, uint32_t val, int len);
371 void pci_device_save(PCIDevice *s, QEMUFile *f);
372 int pci_device_load(PCIDevice *s, QEMUFile *f);
373 MemoryRegion *pci_address_space(PCIDevice *dev);
374 MemoryRegion *pci_address_space_io(PCIDevice *dev);
377 * Should not normally be used by devices. For use by sPAPR target
378 * where QEMU emulates firmware.
380 int pci_bar(PCIDevice *d, int reg);
382 typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
383 typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
384 typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin);
386 #define TYPE_PCI_BUS "PCI"
387 #define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS)
388 #define PCI_BUS_CLASS(klass) OBJECT_CLASS_CHECK(PCIBusClass, (klass), TYPE_PCI_BUS)
389 #define PCI_BUS_GET_CLASS(obj) OBJECT_GET_CLASS(PCIBusClass, (obj), TYPE_PCI_BUS)
390 #define TYPE_PCIE_BUS "PCIE"
392 bool pci_bus_is_express(PCIBus *bus);
393 bool pci_bus_is_root(PCIBus *bus);
394 void pci_bus_new_inplace(PCIBus *bus, size_t bus_size, DeviceState *parent,
396 MemoryRegion *address_space_mem,
397 MemoryRegion *address_space_io,
398 uint8_t devfn_min, const char *typename);
399 PCIBus *pci_bus_new(DeviceState *parent, const char *name,
400 MemoryRegion *address_space_mem,
401 MemoryRegion *address_space_io,
402 uint8_t devfn_min, const char *typename);
403 void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
404 void *irq_opaque, int nirq);
405 int pci_bus_get_irq_level(PCIBus *bus, int irq_num);
406 /* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */
407 int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin);
408 PCIBus *pci_register_bus(DeviceState *parent, const char *name,
409 pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
411 MemoryRegion *address_space_mem,
412 MemoryRegion *address_space_io,
413 uint8_t devfn_min, int nirq, const char *typename);
414 void pci_bus_set_route_irq_fn(PCIBus *, pci_route_irq_fn);
415 PCIINTxRoute pci_device_route_intx_to_irq(PCIDevice *dev, int pin);
416 bool pci_intx_route_changed(PCIINTxRoute *old, PCIINTxRoute *new);
417 void pci_bus_fire_intx_routing_notifier(PCIBus *bus);
418 void pci_device_set_intx_routing_notifier(PCIDevice *dev,
419 PCIINTxRoutingNotifier notifier);
420 void pci_device_reset(PCIDevice *dev);
422 PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus *rootbus,
423 const char *default_model,
424 const char *default_devaddr);
426 PCIDevice *pci_vga_init(PCIBus *bus);
428 int pci_bus_num(PCIBus *s);
429 int pci_bus_numa_node(PCIBus *bus);
430 void pci_for_each_device(PCIBus *bus, int bus_num,
431 void (*fn)(PCIBus *bus, PCIDevice *d, void *opaque),
433 void pci_for_each_device_reverse(PCIBus *bus, int bus_num,
434 void (*fn)(PCIBus *bus, PCIDevice *d,
437 void pci_for_each_bus_depth_first(PCIBus *bus,
438 void *(*begin)(PCIBus *bus, void *parent_state),
439 void (*end)(PCIBus *bus, void *state),
441 PCIDevice *pci_get_function_0(PCIDevice *pci_dev);
443 /* Use this wrapper when specific scan order is not required. */
445 void pci_for_each_bus(PCIBus *bus,
446 void (*fn)(PCIBus *bus, void *opaque),
449 pci_for_each_bus_depth_first(bus, NULL, fn, opaque);
452 PCIBus *pci_find_primary_bus(void);
453 PCIBus *pci_device_root_bus(const PCIDevice *d);
454 const char *pci_root_bus_path(PCIDevice *dev);
455 PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn);
456 int pci_qdev_find_device(const char *id, PCIDevice **pdev);
457 void pci_bus_get_w64_range(PCIBus *bus, Range *range);
459 void pci_device_deassert_intx(PCIDevice *dev);
461 typedef AddressSpace *(*PCIIOMMUFunc)(PCIBus *, void *, int);
463 AddressSpace *pci_device_iommu_address_space(PCIDevice *dev);
464 void pci_setup_iommu(PCIBus *bus, PCIIOMMUFunc fn, void *opaque);
467 pci_set_byte(uint8_t *config, uint8_t val)
472 static inline uint8_t
473 pci_get_byte(const uint8_t *config)
479 pci_set_word(uint8_t *config, uint16_t val)
481 stw_le_p(config, val);
484 static inline uint16_t
485 pci_get_word(const uint8_t *config)
487 return lduw_le_p(config);
491 pci_set_long(uint8_t *config, uint32_t val)
493 stl_le_p(config, val);
496 static inline uint32_t
497 pci_get_long(const uint8_t *config)
499 return ldl_le_p(config);
503 * PCI capabilities and/or their fields
504 * are generally DWORD aligned only so
505 * mechanism used by pci_set/get_quad()
506 * must be tolerant to unaligned pointers
510 pci_set_quad(uint8_t *config, uint64_t val)
512 stq_le_p(config, val);
515 static inline uint64_t
516 pci_get_quad(const uint8_t *config)
518 return ldq_le_p(config);
522 pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val)
524 pci_set_word(&pci_config[PCI_VENDOR_ID], val);
528 pci_config_set_device_id(uint8_t *pci_config, uint16_t val)
530 pci_set_word(&pci_config[PCI_DEVICE_ID], val);
534 pci_config_set_revision(uint8_t *pci_config, uint8_t val)
536 pci_set_byte(&pci_config[PCI_REVISION_ID], val);
540 pci_config_set_class(uint8_t *pci_config, uint16_t val)
542 pci_set_word(&pci_config[PCI_CLASS_DEVICE], val);
546 pci_config_set_prog_interface(uint8_t *pci_config, uint8_t val)
548 pci_set_byte(&pci_config[PCI_CLASS_PROG], val);
552 pci_config_set_interrupt_pin(uint8_t *pci_config, uint8_t val)
554 pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val);
558 * helper functions to do bit mask operation on configuration space.
559 * Just to set bit, use test-and-set and discard returned value.
560 * Just to clear bit, use test-and-clear and discard returned value.
561 * NOTE: They aren't atomic.
563 static inline uint8_t
564 pci_byte_test_and_clear_mask(uint8_t *config, uint8_t mask)
566 uint8_t val = pci_get_byte(config);
567 pci_set_byte(config, val & ~mask);
571 static inline uint8_t
572 pci_byte_test_and_set_mask(uint8_t *config, uint8_t mask)
574 uint8_t val = pci_get_byte(config);
575 pci_set_byte(config, val | mask);
579 static inline uint16_t
580 pci_word_test_and_clear_mask(uint8_t *config, uint16_t mask)
582 uint16_t val = pci_get_word(config);
583 pci_set_word(config, val & ~mask);
587 static inline uint16_t
588 pci_word_test_and_set_mask(uint8_t *config, uint16_t mask)
590 uint16_t val = pci_get_word(config);
591 pci_set_word(config, val | mask);
595 static inline uint32_t
596 pci_long_test_and_clear_mask(uint8_t *config, uint32_t mask)
598 uint32_t val = pci_get_long(config);
599 pci_set_long(config, val & ~mask);
603 static inline uint32_t
604 pci_long_test_and_set_mask(uint8_t *config, uint32_t mask)
606 uint32_t val = pci_get_long(config);
607 pci_set_long(config, val | mask);
611 static inline uint64_t
612 pci_quad_test_and_clear_mask(uint8_t *config, uint64_t mask)
614 uint64_t val = pci_get_quad(config);
615 pci_set_quad(config, val & ~mask);
619 static inline uint64_t
620 pci_quad_test_and_set_mask(uint8_t *config, uint64_t mask)
622 uint64_t val = pci_get_quad(config);
623 pci_set_quad(config, val | mask);
627 /* Access a register specified by a mask */
629 pci_set_byte_by_mask(uint8_t *config, uint8_t mask, uint8_t reg)
631 uint8_t val = pci_get_byte(config);
632 uint8_t rval = reg << ctz32(mask);
633 pci_set_byte(config, (~mask & val) | (mask & rval));
636 static inline uint8_t
637 pci_get_byte_by_mask(uint8_t *config, uint8_t mask)
639 uint8_t val = pci_get_byte(config);
640 return (val & mask) >> ctz32(mask);
644 pci_set_word_by_mask(uint8_t *config, uint16_t mask, uint16_t reg)
646 uint16_t val = pci_get_word(config);
647 uint16_t rval = reg << ctz32(mask);
648 pci_set_word(config, (~mask & val) | (mask & rval));
651 static inline uint16_t
652 pci_get_word_by_mask(uint8_t *config, uint16_t mask)
654 uint16_t val = pci_get_word(config);
655 return (val & mask) >> ctz32(mask);
659 pci_set_long_by_mask(uint8_t *config, uint32_t mask, uint32_t reg)
661 uint32_t val = pci_get_long(config);
662 uint32_t rval = reg << ctz32(mask);
663 pci_set_long(config, (~mask & val) | (mask & rval));
666 static inline uint32_t
667 pci_get_long_by_mask(uint8_t *config, uint32_t mask)
669 uint32_t val = pci_get_long(config);
670 return (val & mask) >> ctz32(mask);
674 pci_set_quad_by_mask(uint8_t *config, uint64_t mask, uint64_t reg)
676 uint64_t val = pci_get_quad(config);
677 uint64_t rval = reg << ctz32(mask);
678 pci_set_quad(config, (~mask & val) | (mask & rval));
681 static inline uint64_t
682 pci_get_quad_by_mask(uint8_t *config, uint64_t mask)
684 uint64_t val = pci_get_quad(config);
685 return (val & mask) >> ctz32(mask);
688 PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
690 PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
693 PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name);
694 PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
696 void lsi53c895a_create(PCIBus *bus);
698 qemu_irq pci_allocate_irq(PCIDevice *pci_dev);
699 void pci_set_irq(PCIDevice *pci_dev, int level);
701 static inline void pci_irq_assert(PCIDevice *pci_dev)
703 pci_set_irq(pci_dev, 1);
706 static inline void pci_irq_deassert(PCIDevice *pci_dev)
708 pci_set_irq(pci_dev, 0);
712 * FIXME: PCI does not work this way.
713 * All the callers to this method should be fixed.
715 static inline void pci_irq_pulse(PCIDevice *pci_dev)
717 pci_irq_assert(pci_dev);
718 pci_irq_deassert(pci_dev);
721 static inline int pci_is_express(const PCIDevice *d)
723 return d->cap_present & QEMU_PCI_CAP_EXPRESS;
726 static inline uint32_t pci_config_size(const PCIDevice *d)
728 return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE;
731 static inline uint16_t pci_get_bdf(PCIDevice *dev)
733 return PCI_BUILD_BDF(pci_bus_num(dev->bus), dev->devfn);
736 uint16_t pci_requester_id(PCIDevice *dev);
738 /* DMA access functions */
739 static inline AddressSpace *pci_get_address_space(PCIDevice *dev)
741 return &dev->bus_master_as;
744 static inline int pci_dma_rw(PCIDevice *dev, dma_addr_t addr,
745 void *buf, dma_addr_t len, DMADirection dir)
747 dma_memory_rw(pci_get_address_space(dev), addr, buf, len, dir);
751 static inline int pci_dma_read(PCIDevice *dev, dma_addr_t addr,
752 void *buf, dma_addr_t len)
754 return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
757 static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr,
758 const void *buf, dma_addr_t len)
760 return pci_dma_rw(dev, addr, (void *) buf, len, DMA_DIRECTION_FROM_DEVICE);
763 #define PCI_DMA_DEFINE_LDST(_l, _s, _bits) \
764 static inline uint##_bits##_t ld##_l##_pci_dma(PCIDevice *dev, \
767 return ld##_l##_dma(pci_get_address_space(dev), addr); \
769 static inline void st##_s##_pci_dma(PCIDevice *dev, \
770 dma_addr_t addr, uint##_bits##_t val) \
772 st##_s##_dma(pci_get_address_space(dev), addr, val); \
775 PCI_DMA_DEFINE_LDST(ub, b, 8);
776 PCI_DMA_DEFINE_LDST(uw_le, w_le, 16)
777 PCI_DMA_DEFINE_LDST(l_le, l_le, 32);
778 PCI_DMA_DEFINE_LDST(q_le, q_le, 64);
779 PCI_DMA_DEFINE_LDST(uw_be, w_be, 16)
780 PCI_DMA_DEFINE_LDST(l_be, l_be, 32);
781 PCI_DMA_DEFINE_LDST(q_be, q_be, 64);
783 #undef PCI_DMA_DEFINE_LDST
785 static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr,
786 dma_addr_t *plen, DMADirection dir)
790 buf = dma_memory_map(pci_get_address_space(dev), addr, plen, dir);
794 static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len,
795 DMADirection dir, dma_addr_t access_len)
797 dma_memory_unmap(pci_get_address_space(dev), buffer, len, dir, access_len);
800 static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev,
803 qemu_sglist_init(qsg, DEVICE(dev), alloc_hint, pci_get_address_space(dev));
806 extern const VMStateDescription vmstate_pci_device;
808 #define VMSTATE_PCI_DEVICE(_field, _state) { \
809 .name = (stringify(_field)), \
810 .size = sizeof(PCIDevice), \
811 .vmsd = &vmstate_pci_device, \
812 .flags = VMS_STRUCT, \
813 .offset = vmstate_offset_value(_state, _field, PCIDevice), \
816 #define VMSTATE_PCI_DEVICE_POINTER(_field, _state) { \
817 .name = (stringify(_field)), \
818 .size = sizeof(PCIDevice), \
819 .vmsd = &vmstate_pci_device, \
820 .flags = VMS_STRUCT|VMS_POINTER, \
821 .offset = vmstate_offset_pointer(_state, _field, PCIDevice), \
824 MSIMessage pci_get_msi_message(PCIDevice *dev, int vector);