diff options
Diffstat (limited to 'hw/pci.h')
| -rw-r--r-- | hw/pci.h | 105 |
1 files changed, 94 insertions, 11 deletions
@@ -9,6 +9,8 @@ /* PCI includes legacy ISA access. */ #include "isa.h" +#include "pcie.h" + /* PCI bus */ #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) @@ -109,11 +111,12 @@ typedef struct PCIIORegion { /* Bits in cap_present field. */ enum { - QEMU_PCI_CAP_MSIX = 0x1, - QEMU_PCI_CAP_EXPRESS = 0x2, + QEMU_PCI_CAP_MSI = 0x1, + QEMU_PCI_CAP_MSIX = 0x2, + QEMU_PCI_CAP_EXPRESS = 0x4, /* multifunction capable device */ -#define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 2 +#define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 3 QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR), }; @@ -129,6 +132,9 @@ struct PCIDevice { /* 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; @@ -168,6 +174,12 @@ struct PCIDevice { /* Version id needed for VMState */ int32_t version_id; + /* Offset of MSI capability in config space */ + uint8_t msi_cap; + + /* PCI Express */ + PCIExpressDevice exp; + /* Location of option rom */ char *romfile; ram_addr_t rom_offset; @@ -180,12 +192,11 @@ PCIDevice *pci_register_device(PCIBus *bus, const char *name, PCIConfigWriteFunc *config_write); void pci_register_bar(PCIDevice *pci_dev, int region_num, - pcibus_t size, int type, + pcibus_t size, uint8_t type, PCIMapIORegionFunc *map_func); -int pci_add_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size); -int pci_add_capability_at_offset(PCIDevice *pci_dev, uint8_t cap_id, - uint8_t cap_offset, uint8_t cap_size); +int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, + uint8_t offset, uint8_t size); void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size); @@ -228,15 +239,17 @@ PCIBus *pci_find_bus(PCIBus *bus, int bus_num); PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function); PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr); +int pci_parse_devaddr(const char *addr, int *domp, int *busp, + unsigned int *slotp, unsigned int *funcp); int pci_read_devaddr(Monitor *mon, const char *addr, int *domp, int *busp, unsigned *slotp); void do_pci_info_print(Monitor *mon, const QObject *data); void do_pci_info(Monitor *mon, QObject **ret_data); -PCIBus *pci_bridge_init(PCIBus *bus, int devfn, bool multifunction, - uint16_t vid, uint16_t did, - pci_map_irq_fn map_irq, const char *name); -PCIDevice *pci_bridge_get_device(PCIBus *bus); +void pci_bridge_update_mappings(PCIBus *b); + +bool pci_msi_enabled(PCIDevice *dev); +void pci_msi_notify(PCIDevice *dev, unsigned int vector); static inline void pci_set_byte(uint8_t *config, uint8_t val) @@ -322,6 +335,76 @@ pci_config_set_interrupt_pin(uint8_t *pci_config, uint8_t val) pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val); } +/* + * helper functions to do bit mask operation on configuration space. + * Just to set bit, use test-and-set and discard returned value. + * Just to clear bit, use test-and-clear and discard returned value. + * NOTE: They aren't atomic. + */ +static inline uint8_t +pci_byte_test_and_clear_mask(uint8_t *config, uint8_t mask) +{ + uint8_t val = pci_get_byte(config); + pci_set_byte(config, val & ~mask); + return val & mask; +} + +static inline uint8_t +pci_byte_test_and_set_mask(uint8_t *config, uint8_t mask) +{ + uint8_t val = pci_get_byte(config); + pci_set_byte(config, val | mask); + return val & mask; +} + +static inline uint16_t +pci_word_test_and_clear_mask(uint8_t *config, uint16_t mask) +{ + uint16_t val = pci_get_word(config); + pci_set_word(config, val & ~mask); + return val & mask; +} + +static inline uint16_t +pci_word_test_and_set_mask(uint8_t *config, uint16_t mask) +{ + uint16_t val = pci_get_word(config); + pci_set_word(config, val | mask); + return val & mask; +} + +static inline uint32_t +pci_long_test_and_clear_mask(uint8_t *config, uint32_t mask) +{ + uint32_t val = pci_get_long(config); + pci_set_long(config, val & ~mask); + return val & mask; +} + +static inline uint32_t +pci_long_test_and_set_mask(uint8_t *config, uint32_t mask) +{ + uint32_t val = pci_get_long(config); + pci_set_long(config, val | mask); + return val & mask; +} + +static inline uint64_t +pci_quad_test_and_clear_mask(uint8_t *config, uint64_t mask) +{ + uint64_t val = pci_get_quad(config); + pci_set_quad(config, val & ~mask); + return val & mask; +} + +static inline uint64_t +pci_quad_test_and_set_mask(uint8_t *config, uint64_t mask) +{ + uint64_t val = pci_get_quad(config); + pci_set_quad(config, val | mask); + return val & mask; +} + typedef int (*pci_qdev_initfn)(PCIDevice *dev); typedef struct { DeviceInfo qdev; |