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 #include "libqos/qgraph.h" 18 19 #define QPCI_PIO_LIMIT 0x10000 20 21 #define QPCI_DEVFN(dev, fn) (((dev) << 3) | (fn)) 22 23 typedef struct QPCIDevice QPCIDevice; 24 typedef struct QPCIBus QPCIBus; 25 typedef struct QPCIBar QPCIBar; 26 typedef struct QPCIAddress QPCIAddress; 27 28 struct QPCIBus { 29 uint8_t (*pio_readb)(QPCIBus *bus, uint32_t addr); 30 uint16_t (*pio_readw)(QPCIBus *bus, uint32_t addr); 31 uint32_t (*pio_readl)(QPCIBus *bus, uint32_t addr); 32 uint64_t (*pio_readq)(QPCIBus *bus, uint32_t addr); 33 34 void (*pio_writeb)(QPCIBus *bus, uint32_t addr, uint8_t value); 35 void (*pio_writew)(QPCIBus *bus, uint32_t addr, uint16_t value); 36 void (*pio_writel)(QPCIBus *bus, uint32_t addr, uint32_t value); 37 void (*pio_writeq)(QPCIBus *bus, uint32_t addr, uint64_t value); 38 39 void (*memread)(QPCIBus *bus, uint32_t addr, void *buf, size_t len); 40 void (*memwrite)(QPCIBus *bus, uint32_t addr, const void *buf, size_t len); 41 42 uint8_t (*config_readb)(QPCIBus *bus, int devfn, uint8_t offset); 43 uint16_t (*config_readw)(QPCIBus *bus, int devfn, uint8_t offset); 44 uint32_t (*config_readl)(QPCIBus *bus, int devfn, uint8_t offset); 45 46 void (*config_writeb)(QPCIBus *bus, int devfn, 47 uint8_t offset, uint8_t value); 48 void (*config_writew)(QPCIBus *bus, int devfn, 49 uint8_t offset, uint16_t value); 50 void (*config_writel)(QPCIBus *bus, int devfn, 51 uint8_t offset, uint32_t value); 52 53 QTestState *qts; 54 uint16_t pio_alloc_ptr; 55 uint64_t mmio_alloc_ptr, mmio_limit; 56 57 }; 58 59 struct QPCIBar { 60 uint64_t addr; 61 }; 62 63 struct QPCIDevice 64 { 65 QPCIBus *bus; 66 int devfn; 67 bool msix_enabled; 68 QPCIBar msix_table_bar, msix_pba_bar; 69 uint64_t msix_table_off, msix_pba_off; 70 }; 71 72 struct QPCIAddress { 73 uint32_t devfn; 74 uint16_t vendor_id; 75 uint16_t device_id; 76 }; 77 78 void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id, 79 void (*func)(QPCIDevice *dev, int devfn, void *data), 80 void *data); 81 QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn); 82 void qpci_device_init(QPCIDevice *dev, QPCIBus *bus, QPCIAddress *addr); 83 84 void qpci_device_enable(QPCIDevice *dev); 85 uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id); 86 void qpci_msix_enable(QPCIDevice *dev); 87 void qpci_msix_disable(QPCIDevice *dev); 88 bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry); 89 bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry); 90 uint16_t qpci_msix_table_size(QPCIDevice *dev); 91 92 uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset); 93 uint16_t qpci_config_readw(QPCIDevice *dev, uint8_t offset); 94 uint32_t qpci_config_readl(QPCIDevice *dev, uint8_t offset); 95 96 void qpci_config_writeb(QPCIDevice *dev, uint8_t offset, uint8_t value); 97 void qpci_config_writew(QPCIDevice *dev, uint8_t offset, uint16_t value); 98 void qpci_config_writel(QPCIDevice *dev, uint8_t offset, uint32_t value); 99 100 uint8_t qpci_io_readb(QPCIDevice *dev, QPCIBar token, uint64_t off); 101 uint16_t qpci_io_readw(QPCIDevice *dev, QPCIBar token, uint64_t off); 102 uint32_t qpci_io_readl(QPCIDevice *dev, QPCIBar token, uint64_t off); 103 uint64_t qpci_io_readq(QPCIDevice *dev, QPCIBar token, uint64_t off); 104 105 void qpci_io_writeb(QPCIDevice *dev, QPCIBar token, uint64_t off, 106 uint8_t value); 107 void qpci_io_writew(QPCIDevice *dev, QPCIBar token, uint64_t off, 108 uint16_t value); 109 void qpci_io_writel(QPCIDevice *dev, QPCIBar token, uint64_t off, 110 uint32_t value); 111 void qpci_io_writeq(QPCIDevice *dev, QPCIBar token, uint64_t off, 112 uint64_t value); 113 114 void qpci_memread(QPCIDevice *bus, QPCIBar token, uint64_t off, 115 void *buf, size_t len); 116 void qpci_memwrite(QPCIDevice *bus, QPCIBar token, uint64_t off, 117 const void *buf, size_t len); 118 QPCIBar qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr); 119 void qpci_iounmap(QPCIDevice *dev, QPCIBar addr); 120 QPCIBar qpci_legacy_iomap(QPCIDevice *dev, uint16_t addr); 121 122 void qpci_unplug_acpi_device_test(const char *id, uint8_t slot); 123 124 void add_qpci_address(QOSGraphEdgeOptions *opts, QPCIAddress *addr); 125 #endif 126