LXR qemu/tests/qtest/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#include "libqos/qgraph.h"
  18
  19#define QPCI_PIO_LIMIT    0x10000
  20
  21#define QPCI_DEVFN(dev, fn) (((dev) << 3) | (fn))
  22
  23typedef struct QPCIDevice QPCIDevice;
  24typedef struct QPCIBus QPCIBus;
  25typedef struct QPCIBar QPCIBar;
  26typedef struct QPCIAddress QPCIAddress;
  27
  28struct 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    bool has_buggy_msi; /* TRUE for spapr, FALSE for pci */
  57
  58};
  59
  60struct QPCIBar {
  61    uint64_t addr;
  62};
  63
  64struct QPCIDevice
  65{
  66    QPCIBus *bus;
  67    int devfn;
  68    bool msix_enabled;
  69    QPCIBar msix_table_bar, msix_pba_bar;
  70    uint64_t msix_table_off, msix_pba_off;
  71};
  72
  73struct QPCIAddress {
  74    uint32_t devfn;
  75    uint16_t vendor_id;
  76    uint16_t device_id;
  77};
  78
  79void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
  80                         void (*func)(QPCIDevice *dev, int devfn, void *data),
  81                         void *data);
  82QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn);
  83void qpci_device_init(QPCIDevice *dev, QPCIBus *bus, QPCIAddress *addr);
  84
  85bool qpci_has_buggy_msi(QPCIDevice *dev);
  86bool qpci_check_buggy_msi(QPCIDevice *dev);
  87
  88void qpci_device_enable(QPCIDevice *dev);
  89uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id, uint8_t start_addr);
  90void qpci_msix_enable(QPCIDevice *dev);
  91void qpci_msix_disable(QPCIDevice *dev);
  92bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry);
  93bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry);
  94uint16_t qpci_msix_table_size(QPCIDevice *dev);
  95
  96uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset);
  97uint16_t qpci_config_readw(QPCIDevice *dev, uint8_t offset);
  98uint32_t qpci_config_readl(QPCIDevice *dev, uint8_t offset);
  99
 100void qpci_config_writeb(QPCIDevice *dev, uint8_t offset, uint8_t value);
 101void qpci_config_writew(QPCIDevice *dev, uint8_t offset, uint16_t value);
 102void qpci_config_writel(QPCIDevice *dev, uint8_t offset, uint32_t value);
 103
 104uint8_t qpci_io_readb(QPCIDevice *dev, QPCIBar token, uint64_t off);
 105uint16_t qpci_io_readw(QPCIDevice *dev, QPCIBar token, uint64_t off);
 106uint32_t qpci_io_readl(QPCIDevice *dev, QPCIBar token, uint64_t off);
 107uint64_t qpci_io_readq(QPCIDevice *dev, QPCIBar token, uint64_t off);
 108
 109void qpci_io_writeb(QPCIDevice *dev, QPCIBar token, uint64_t off,
 110                    uint8_t value);
 111void qpci_io_writew(QPCIDevice *dev, QPCIBar token, uint64_t off,
 112                    uint16_t value);
 113void qpci_io_writel(QPCIDevice *dev, QPCIBar token, uint64_t off,
 114                    uint32_t value);
 115void qpci_io_writeq(QPCIDevice *dev, QPCIBar token, uint64_t off,
 116                    uint64_t value);
 117
 118void qpci_memread(QPCIDevice *bus, QPCIBar token, uint64_t off,
 119                  void *buf, size_t len);
 120void qpci_memwrite(QPCIDevice *bus, QPCIBar token, uint64_t off,
 121                   const void *buf, size_t len);
 122QPCIBar qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr);
 123void qpci_iounmap(QPCIDevice *dev, QPCIBar addr);
 124QPCIBar qpci_legacy_iomap(QPCIDevice *dev, uint16_t addr);
 125
 126void qpci_unplug_acpi_device_test(QTestState *qs, const char *id, uint8_t slot);
 127
 128void add_qpci_address(QOSGraphEdgeOptions *opts, QPCIAddress *addr);
 129#endif
 130