hw/pcie_host.h

   1 /*
   2  * pcie_host.h
   3  *
   4  * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
   5  *                    VA Linux Systems Japan K.K.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef PCIE_HOST_H
  22 #define PCIE_HOST_H
  23
  24 #include "pci_host.h"
  25 #include "memory.h"
  26
  27 #define TYPE_PCIE_HOST_BRIDGE "pcie-host-bridge"
  28 #define PCIE_HOST_BRIDGE(obj) \
  29     OBJECT_CHECK(PCIExpressHost, (obj), TYPE_PCIE_HOST_BRIDGE)
  30
  31 struct PCIExpressHost {
  32     PCIHostState pci;
  33
  34     /* express part */
  35
  36     /* base address where MMCONFIG area is mapped. */
  37     hwaddr  base_addr;
  38
  39     /* the size of MMCONFIG area. It's host bridge dependent */
  40     hwaddr  size;
  41
  42     /* MMCONFIG mmio area */
  43     MemoryRegion mmio;
  44 };
  45
  46 int pcie_host_init(PCIExpressHost *e);
  47 void pcie_host_mmcfg_unmap(PCIExpressHost *e);
  48 void pcie_host_mmcfg_map(PCIExpressHost *e, hwaddr addr, uint32_t size);
  49 void pcie_host_mmcfg_update(PCIExpressHost *e,
  50                             int enable,
  51                             hwaddr addr,
  52                             uint32_t size);
  53
  54 #endif /* PCIE_HOST_H */