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     uint16_t pio_alloc_ptr;
  52     uint64_t mmio_alloc_ptr, mmio_limit;
  53 };
  54
  55 struct QPCIBar {
  56     uint64_t addr;
  57 };
  58
  59 struct QPCIDevice
  60 {
  61     QPCIBus *bus;
  62     int devfn;
  63     bool msix_enabled;
  64     QPCIBar msix_table_bar, msix_pba_bar;
  65     uint64_t msix_table_off, msix_pba_off;
  66 };
  67
  68 void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
  69                          void (*func)(QPCIDevice *dev, int devfn, void *data),
  70                          void *data);
  71 QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn);
  72
  73 void qpci_device_enable(QPCIDevice *dev);
  74 uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id);
  75 void qpci_msix_enable(QPCIDevice *dev);
  76 void qpci_msix_disable(QPCIDevice *dev);
  77 bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry);
  78 bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry);
  79 uint16_t qpci_msix_table_size(QPCIDevice *dev);
  80
  81 uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset);
  82 uint16_t qpci_config_readw(QPCIDevice *dev, uint8_t offset);
  83 uint32_t qpci_config_readl(QPCIDevice *dev, uint8_t offset);
  84
  85 void qpci_config_writeb(QPCIDevice *dev, uint8_t offset, uint8_t value);
  86 void qpci_config_writew(QPCIDevice *dev, uint8_t offset, uint16_t value);
  87 void qpci_config_writel(QPCIDevice *dev, uint8_t offset, uint32_t value);
  88
  89 uint8_t qpci_io_readb(QPCIDevice *dev, QPCIBar token, uint64_t off);
  90 uint16_t qpci_io_readw(QPCIDevice *dev, QPCIBar token, uint64_t off);
  91 uint32_t qpci_io_readl(QPCIDevice *dev, QPCIBar token, uint64_t off);
  92 uint64_t qpci_io_readq(QPCIDevice *dev, QPCIBar token, uint64_t off);
  93
  94 void qpci_io_writeb(QPCIDevice *dev, QPCIBar token, uint64_t off,
  95                     uint8_t value);
  96 void qpci_io_writew(QPCIDevice *dev, QPCIBar token, uint64_t off,
  97                     uint16_t value);
  98 void qpci_io_writel(QPCIDevice *dev, QPCIBar token, uint64_t off,
  99                     uint32_t value);
 100 void qpci_io_writeq(QPCIDevice *dev, QPCIBar token, uint64_t off,
 101                     uint64_t value);
 102
 103 void qpci_memread(QPCIDevice *bus, QPCIBar token, uint64_t off,
 104                   void *buf, size_t len);
 105 void qpci_memwrite(QPCIDevice *bus, QPCIBar token, uint64_t off,
 106                    const void *buf, size_t len);
 107 QPCIBar qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr);
 108 void qpci_iounmap(QPCIDevice *dev, QPCIBar addr);
 109 QPCIBar qpci_legacy_iomap(QPCIDevice *dev, uint16_t addr);
 110
 111 void qpci_plug_device_test(const char *driver, const char *id,
 112                            uint8_t slot, const char *opts);
 113 void qpci_unplug_acpi_device_test(const char *id, uint8_t slot);
 114 #endif