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
  30 #define IOMMU_NREGS         (4 * 4096 / 4)
  31
  32 typedef struct IOMMUState {
  33     SysBusDevice parent_obj;
  34
  35     AddressSpace iommu_as;
  36     IOMMUMemoryRegion iommu;
  37
  38     MemoryRegion iomem;
  39     uint32_t regs[IOMMU_NREGS];
  40     hwaddr iostart;
  41     qemu_irq irq;
  42     uint32_t version;
  43 } IOMMUState;
  44
  45 #define TYPE_SUN4M_IOMMU "sun4m-iommu"
  46 #define SUN4M_IOMMU(obj) OBJECT_CHECK(IOMMUState, (obj), TYPE_SUN4M_IOMMU)
  47
  48 #define TYPE_SUN4M_IOMMU_MEMORY_REGION "sun4m-iommu-memory-region"
  49
  50 #endif