diff options
Diffstat (limited to 'include/hw/pci/pci.h')
| -rw-r--r-- | include/hw/pci/pci.h | 344 |
1 files changed, 0 insertions, 344 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 5ca2a9df58..7048a373d1 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -166,7 +166,6 @@ enum { #define QEMU_PCI_VGA_IO_HI_SIZE 0x20 #include "hw/pci/pci_regs.h" -#include "hw/pci/pcie.h" /* PCI HEADER_TYPE */ #define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80 @@ -210,23 +209,6 @@ enum { QEMU_PCIE_CAP_CXL = (1 << QEMU_PCIE_CXL_BITNR), }; -#define TYPE_PCI_DEVICE "pci-device" -typedef struct PCIDeviceClass PCIDeviceClass; -DECLARE_OBJ_CHECKERS(PCIDevice, PCIDeviceClass, - PCI_DEVICE, TYPE_PCI_DEVICE) - -/* - * Implemented by devices that can be plugged on CXL buses. In the spec, this is - * actually a "CXL Component, but we name it device to match the PCI naming. - */ -#define INTERFACE_CXL_DEVICE "cxl-device" - -/* Implemented by devices that can be plugged on PCI Express buses */ -#define INTERFACE_PCIE_DEVICE "pci-express-device" - -/* Implemented by devices that can be plugged on Conventional PCI buses */ -#define INTERFACE_CONVENTIONAL_PCI_DEVICE "conventional-pci-device" - typedef struct PCIINTxRoute { enum { PCI_INTX_ENABLED, @@ -236,24 +218,6 @@ typedef struct PCIINTxRoute { int irq; } PCIINTxRoute; -struct PCIDeviceClass { - DeviceClass parent_class; - - void (*realize)(PCIDevice *dev, Error **errp); - PCIUnregisterFunc *exit; - PCIConfigReadFunc *config_read; - PCIConfigWriteFunc *config_write; - - uint16_t vendor_id; - uint16_t device_id; - uint8_t revision; - uint16_t class_id; - uint16_t subsystem_vendor_id; /* only for header type = 0 */ - uint16_t subsystem_id; /* only for header type = 0 */ - - const char *romfile; /* rom bar */ -}; - typedef void (*PCIINTxRoutingNotifier)(PCIDevice *dev); typedef int (*MSIVectorUseNotifier)(PCIDevice *dev, unsigned int vector, MSIMessage msg); @@ -262,129 +226,6 @@ typedef void (*MSIVectorPollNotifier)(PCIDevice *dev, unsigned int vector_start, unsigned int vector_end); -enum PCIReqIDType { - PCI_REQ_ID_INVALID = 0, - PCI_REQ_ID_BDF, - PCI_REQ_ID_SECONDARY_BUS, - PCI_REQ_ID_MAX, -}; -typedef enum PCIReqIDType PCIReqIDType; - -struct PCIReqIDCache { - PCIDevice *dev; - PCIReqIDType type; -}; -typedef struct PCIReqIDCache PCIReqIDCache; - -struct PCIDevice { - DeviceState qdev; - bool partially_hotplugged; - bool has_power; - - /* PCI config space */ - uint8_t *config; - - /* - * Used to enable config checks on load. Note that writable bits are - * never checked even if set in cmask. - */ - uint8_t *cmask; - - /* Used to implement R/W bytes */ - uint8_t *wmask; - - /* Used to implement RW1C(Write 1 to Clear) bytes */ - uint8_t *w1cmask; - - /* Used to allocate config space for capabilities. */ - uint8_t *used; - - /* the following fields are read only */ - int32_t devfn; - /* - * Cached device to fetch requester ID from, to avoid the PCI tree - * walking every time we invoke PCI request (e.g., MSI). For - * conventional PCI root complex, this field is meaningless. - */ - PCIReqIDCache requester_id_cache; - char name[64]; - PCIIORegion io_regions[PCI_NUM_REGIONS]; - AddressSpace bus_master_as; - MemoryRegion bus_master_container_region; - MemoryRegion bus_master_enable_region; - - /* do not access the following fields */ - PCIConfigReadFunc *config_read; - PCIConfigWriteFunc *config_write; - - /* Legacy PCI VGA regions */ - MemoryRegion *vga_regions[QEMU_PCI_VGA_NUM_REGIONS]; - bool has_vga; - - /* Current IRQ levels. Used internally by the generic PCI code. */ - uint8_t irq_state; - - /* Capability bits */ - uint32_t cap_present; - - /* Offset of MSI-X capability in config space */ - uint8_t msix_cap; - - /* MSI-X entries */ - int msix_entries_nr; - - /* Space to store MSIX table & pending bit array */ - uint8_t *msix_table; - uint8_t *msix_pba; - - /* May be used by INTx or MSI during interrupt notification */ - void *irq_opaque; - - MSITriggerFunc *msi_trigger; - MSIPrepareMessageFunc *msi_prepare_message; - MSIxPrepareMessageFunc *msix_prepare_message; - - /* MemoryRegion container for msix exclusive BAR setup */ - MemoryRegion msix_exclusive_bar; - /* Memory Regions for MSIX table and pending bit entries. */ - MemoryRegion msix_table_mmio; - MemoryRegion msix_pba_mmio; - /* Reference-count for entries actually in use by driver. */ - unsigned *msix_entry_used; - /* MSIX function mask set or MSIX disabled */ - bool msix_function_masked; - /* Version id needed for VMState */ - int32_t version_id; - - /* Offset of MSI capability in config space */ - uint8_t msi_cap; - - /* PCI Express */ - PCIExpressDevice exp; - - /* SHPC */ - SHPCDevice *shpc; - - /* Location of option rom */ - char *romfile; - uint32_t romsize; - bool has_rom; - MemoryRegion rom; - uint32_t rom_bar; - - /* INTx routing notifier */ - PCIINTxRoutingNotifier intx_routing_notifier; - - /* MSI-X notifiers */ - MSIVectorUseNotifier msix_vector_use_notifier; - MSIVectorReleaseNotifier msix_vector_release_notifier; - MSIVectorPollNotifier msix_vector_poll_notifier; - - /* ID of standby device in net_failover pair */ - char *failover_pair_id; - uint32_t acpi_index; -}; - void pci_register_bar(PCIDevice *pci_dev, int region_num, uint8_t attr, MemoryRegion *memory); void pci_register_vga(PCIDevice *pci_dev, MemoryRegion *mem, @@ -745,11 +586,6 @@ void lsi53c8xx_handle_legacy_cmdline(DeviceState *lsi_dev); qemu_irq pci_allocate_irq(PCIDevice *pci_dev); void pci_set_irq(PCIDevice *pci_dev, int level); -static inline int pci_intx(PCIDevice *pci_dev) -{ - return pci_get_byte(pci_dev->config + PCI_INTERRUPT_PIN) - 1; -} - static inline void pci_irq_assert(PCIDevice *pci_dev) { pci_set_irq(pci_dev, 1); @@ -770,186 +606,6 @@ static inline void pci_irq_pulse(PCIDevice *pci_dev) pci_irq_deassert(pci_dev); } -static inline int pci_is_cxl(const PCIDevice *d) -{ - return d->cap_present & QEMU_PCIE_CAP_CXL; -} - -static inline int pci_is_express(const PCIDevice *d) -{ - return d->cap_present & QEMU_PCI_CAP_EXPRESS; -} - -static inline int pci_is_express_downstream_port(const PCIDevice *d) -{ - uint8_t type; - - if (!pci_is_express(d) || !d->exp.exp_cap) { - return 0; - } - - type = pcie_cap_get_type(d); - - return type == PCI_EXP_TYPE_DOWNSTREAM || type == PCI_EXP_TYPE_ROOT_PORT; -} - -static inline int pci_is_vf(const PCIDevice *d) -{ - return d->exp.sriov_vf.pf != NULL; -} - -static inline uint32_t pci_config_size(const PCIDevice *d) -{ - return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE; -} - -static inline uint16_t pci_get_bdf(PCIDevice *dev) -{ - return PCI_BUILD_BDF(pci_bus_num(pci_get_bus(dev)), dev->devfn); -} - -uint16_t pci_requester_id(PCIDevice *dev); - -/* DMA access functions */ -static inline AddressSpace *pci_get_address_space(PCIDevice *dev) -{ - return &dev->bus_master_as; -} - -/** - * pci_dma_rw: Read from or write to an address space from PCI device. - * - * Return a MemTxResult indicating whether the operation succeeded - * or failed (eg unassigned memory, device rejected the transaction, - * IOMMU fault). - * - * @dev: #PCIDevice doing the memory access - * @addr: address within the #PCIDevice address space - * @buf: buffer with the data transferred - * @len: the number of bytes to read or write - * @dir: indicates the transfer direction - */ -static inline MemTxResult pci_dma_rw(PCIDevice *dev, dma_addr_t addr, - void *buf, dma_addr_t len, - DMADirection dir, MemTxAttrs attrs) -{ - return dma_memory_rw(pci_get_address_space(dev), addr, buf, len, - dir, attrs); -} - -/** - * pci_dma_read: Read from an address space from PCI device. - * - * Return a MemTxResult indicating whether the operation succeeded - * or failed (eg unassigned memory, device rejected the transaction, - * IOMMU fault). Called within RCU critical section. - * - * @dev: #PCIDevice doing the memory access - * @addr: address within the #PCIDevice address space - * @buf: buffer with the data transferred - * @len: length of the data transferred - */ -static inline MemTxResult pci_dma_read(PCIDevice *dev, dma_addr_t addr, - void *buf, dma_addr_t len) -{ - return pci_dma_rw(dev, addr, buf, len, - DMA_DIRECTION_TO_DEVICE, MEMTXATTRS_UNSPECIFIED); -} - -/** - * pci_dma_write: Write to address space from PCI device. - * - * Return a MemTxResult indicating whether the operation succeeded - * or failed (eg unassigned memory, device rejected the transaction, - * IOMMU fault). - * - * @dev: #PCIDevice doing the memory access - * @addr: address within the #PCIDevice address space - * @buf: buffer with the data transferred - * @len: the number of bytes to write - */ -static inline MemTxResult pci_dma_write(PCIDevice *dev, dma_addr_t addr, - const void *buf, dma_addr_t len) -{ - return pci_dma_rw(dev, addr, (void *) buf, len, - DMA_DIRECTION_FROM_DEVICE, MEMTXATTRS_UNSPECIFIED); -} - -#define PCI_DMA_DEFINE_LDST(_l, _s, _bits) \ - static inline MemTxResult ld##_l##_pci_dma(PCIDevice *dev, \ - dma_addr_t addr, \ - uint##_bits##_t *val, \ - MemTxAttrs attrs) \ - { \ - return ld##_l##_dma(pci_get_address_space(dev), addr, val, attrs); \ - } \ - static inline MemTxResult st##_s##_pci_dma(PCIDevice *dev, \ - dma_addr_t addr, \ - uint##_bits##_t val, \ - MemTxAttrs attrs) \ - { \ - return st##_s##_dma(pci_get_address_space(dev), addr, val, attrs); \ - } - -PCI_DMA_DEFINE_LDST(ub, b, 8); -PCI_DMA_DEFINE_LDST(uw_le, w_le, 16) -PCI_DMA_DEFINE_LDST(l_le, l_le, 32); -PCI_DMA_DEFINE_LDST(q_le, q_le, 64); -PCI_DMA_DEFINE_LDST(uw_be, w_be, 16) -PCI_DMA_DEFINE_LDST(l_be, l_be, 32); -PCI_DMA_DEFINE_LDST(q_be, q_be, 64); - -#undef PCI_DMA_DEFINE_LDST - -/** - * pci_dma_map: Map device PCI address space range into host virtual address - * @dev: #PCIDevice to be accessed - * @addr: address within that device's address space - * @plen: pointer to length of buffer; updated on return to indicate - * if only a subset of the requested range has been mapped - * @dir: indicates the transfer direction - * - * Return: A host pointer, or %NULL if the resources needed to - * perform the mapping are exhausted (in that case *@plen - * is set to zero). - */ -static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr, - dma_addr_t *plen, DMADirection dir) -{ - return dma_memory_map(pci_get_address_space(dev), addr, plen, dir, - MEMTXATTRS_UNSPECIFIED); -} - -static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len, - DMADirection dir, dma_addr_t access_len) -{ - dma_memory_unmap(pci_get_address_space(dev), buffer, len, dir, access_len); -} - -static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev, - int alloc_hint) -{ - qemu_sglist_init(qsg, DEVICE(dev), alloc_hint, pci_get_address_space(dev)); -} - -extern const VMStateDescription vmstate_pci_device; - -#define VMSTATE_PCI_DEVICE(_field, _state) { \ - .name = (stringify(_field)), \ - .size = sizeof(PCIDevice), \ - .vmsd = &vmstate_pci_device, \ - .flags = VMS_STRUCT, \ - .offset = vmstate_offset_value(_state, _field, PCIDevice), \ -} - -#define VMSTATE_PCI_DEVICE_POINTER(_field, _state) { \ - .name = (stringify(_field)), \ - .size = sizeof(PCIDevice), \ - .vmsd = &vmstate_pci_device, \ - .flags = VMS_STRUCT | VMS_POINTER, \ - .offset = vmstate_offset_pointer(_state, _field, PCIDevice), \ -} - MSIMessage pci_get_msi_message(PCIDevice *dev, int vector); void pci_set_power(PCIDevice *pci_dev, bool state); |