tests/libqos/pci.h

   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