include/hw/sparc/sun4m_iommu.h

   1 /*
   2  * QEMU Sun4m iommu emulation
   3  *
   4  * Copyright (c) 2003-2005 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #ifndef SUN4M_IOMMU_H
  26 #define SUN4M_IOMMU_H
  27
  28 #include "hw/sysbus.h"
  29 #include "qom/object.h"
  30
  31 #define IOMMU_NREGS         (4 * 4096 / 4)
  32
  33 struct IOMMUState {
  34     SysBusDevice parent_obj;
  35
  36     AddressSpace iommu_as;
  37     IOMMUMemoryRegion iommu;
  38
  39     MemoryRegion iomem;
  40     uint32_t regs[IOMMU_NREGS];
  41     hwaddr iostart;
  42     qemu_irq irq;
  43     uint32_t version;
  44 };
  45 typedef struct IOMMUState IOMMUState;
  46
  47 #define TYPE_SUN4M_IOMMU "sun4m-iommu"
  48 DECLARE_INSTANCE_CHECKER(IOMMUState, SUN4M_IOMMU,
  49                          TYPE_SUN4M_IOMMU)
  50
  51 #define TYPE_SUN4M_IOMMU_MEMORY_REGION "sun4m-iommu-memory-region"
  52
  53 #endif