1 /* 2 * libqos PCI bindings 3 * 4 * Copyright IBM, Corp. 2012-2013 5 * 6 * Authors: 7 * Anthony Liguori <aliguori@us.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 */ 12 13 #ifndef LIBQOS_PCI_H 14 #define LIBQOS_PCI_H 15 16 #include "libqtest.h" 17 18 #define QPCI_PIO_LIMIT 0x10000 19 20 #define QPCI_DEVFN(dev, fn) (((dev) << 3) | (fn)) 21 22 typedef struct QPCIDevice QPCIDevice; 23 typedef struct QPCIBus QPCIBus; 24 typedef struct QPCIBar QPCIBar; 25 26 struct QPCIBus { 27 uint8_t (*pio_readb)(QPCIBus *bus, uint32_t addr); 28 uint16_t (*pio_readw)(QPCIBus *bus, uint32_t addr); 29 uint32_t (*pio_readl)(QPCIBus *bus, uint32_t addr); 30 uint64_t (*pio_readq)(QPCIBus *bus, uint32_t addr); 31 32 void (*pio_writeb)(QPCIBus *bus, uint32_t addr, uint8_t value); 33 void (*pio_writew)(QPCIBus *bus, uint32_t addr, uint16_t value); 34 void (*pio_writel)(QPCIBus *bus, uint32_t addr, uint32_t value); 35 void (*pio_writeq)(QPCIBus *bus, uint32_t addr, uint64_t value); 36 37 void (*memread)(QPCIBus *bus, uint32_t addr, void *buf, size_t len); 38 void (*memwrite)(QPCIBus *bus, uint32_t addr, const void *buf, size_t len); 39 40 uint8_t (*config_readb)(QPCIBus *bus, int devfn, uint8_t offset); 41 uint16_t (*config_readw)(QPCIBus *bus, int devfn, uint8_t offset); 42 uint32_t (*config_readl)(QPCIBus *bus, int devfn, uint8_t offset); 43 44 void (*config_writeb)(QPCIBus *bus, int devfn, 45 uint8_t offset, uint8_t value); 46 void (*config_writew)(QPCIBus *bus, int devfn, 47 uint8_t offset, uint16_t value); 48 void (*config_writel)(QPCIBus *bus, int devfn, 49 uint8_t offset, uint32_t value); 50 51 QTestState *qts; 52 uint16_t pio_alloc_ptr; 53 uint64_t mmio_alloc_ptr, mmio_limit; 54 }; 55 56 struct QPCIBar { 57 uint64_t addr; 58 }; 59 60 struct QPCIDevice 61 { 62 QPCIBus *bus; 63 int devfn; 64 bool msix_enabled; 65 QPCIBar msix_table_bar, msix_pba_bar; 66 uint64_t msix_table_off, msix_pba_off; 67 }; 68 69 void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id, 70 void (*func)(QPCIDevice *dev, int devfn, void *data), 71 void *data); 72 QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn); 73 74 void qpci_device_enable(QPCIDevice *dev); 75 uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id); 76 void qpci_msix_enable(QPCIDevice *dev); 77 void qpci_msix_disable(QPCIDevice *dev); 78 bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry); 79 bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry); 80 uint16_t qpci_msix_table_size(QPCIDevice *dev); 81 82 uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset); 83 uint16_t qpci_config_readw(QPCIDevice *dev, uint8_t offset); 84 uint32_t qpci_config_readl(QPCIDevice *dev, uint8_t offset); 85 86 void qpci_config_writeb(QPCIDevice *dev, uint8_t offset, uint8_t value); 87 void qpci_config_writew(QPCIDevice *dev, uint8_t offset, uint16_t value); 88 void qpci_config_writel(QPCIDevice *dev, uint8_t offset, uint32_t value); 89 90 uint8_t qpci_io_readb(QPCIDevice *dev, QPCIBar token, uint64_t off); 91 uint16_t qpci_io_readw(QPCIDevice *dev, QPCIBar token, uint64_t off); 92 uint32_t qpci_io_readl(QPCIDevice *dev, QPCIBar token, uint64_t off); 93 uint64_t qpci_io_readq(QPCIDevice *dev, QPCIBar token, uint64_t off); 94 95 void qpci_io_writeb(QPCIDevice *dev, QPCIBar token, uint64_t off, 96 uint8_t value); 97 void qpci_io_writew(QPCIDevice *dev, QPCIBar token, uint64_t off, 98 uint16_t value); 99 void qpci_io_writel(QPCIDevice *dev, QPCIBar token, uint64_t off, 100 uint32_t value); 101 void qpci_io_writeq(QPCIDevice *dev, QPCIBar token, uint64_t off, 102 uint64_t value); 103 104 void qpci_memread(QPCIDevice *bus, QPCIBar token, uint64_t off, 105 void *buf, size_t len); 106 void qpci_memwrite(QPCIDevice *bus, QPCIBar token, uint64_t off, 107 const void *buf, size_t len); 108 QPCIBar qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr); 109 void qpci_iounmap(QPCIDevice *dev, QPCIBar addr); 110 QPCIBar qpci_legacy_iomap(QPCIDevice *dev, uint16_t addr); 111 112 void qpci_plug_device_test(const char *driver, const char *id, 113 uint8_t slot, const char *opts); 114 void qpci_unplug_acpi_device_test(const char *id, uint8_t slot); 115 #endif 116