xref: /openbmc/qemu/include/hw/sparc/sun4u_iommu.h (revision fca9d723)
1 /*
2  * QEMU sun4u IOMMU emulation
3  *
4  * Copyright (c) 2006 Fabrice Bellard
5  * Copyright (c) 2012,2013 Artyom Tarasenko
6  * Copyright (c) 2017 Mark Cave-Ayland
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a copy
9  * of this software and associated documentation files (the "Software"), to deal
10  * in the Software without restriction, including without limitation the rights
11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12  * copies of the Software, and to permit persons to whom the Software is
13  * furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24  * THE SOFTWARE.
25  */
26 
27 #ifndef SUN4U_IOMMU_H
28 #define SUN4U_IOMMU_H
29 
30 #include "hw/sysbus.h"
31 #include "qom/object.h"
32 
33 #define IOMMU_NREGS             3
34 
35 struct IOMMUState {
36     SysBusDevice parent_obj;
37 
38     AddressSpace iommu_as;
39     IOMMUMemoryRegion iommu;
40 
41     MemoryRegion iomem;
42     uint64_t regs[IOMMU_NREGS];
43 };
44 typedef struct IOMMUState IOMMUState;
45 
46 #define TYPE_SUN4U_IOMMU "sun4u-iommu"
47 DECLARE_INSTANCE_CHECKER(IOMMUState, SUN4U_IOMMU,
48                          TYPE_SUN4U_IOMMU)
49 
50 #define TYPE_SUN4U_IOMMU_MEMORY_REGION "sun4u-iommu-memory-region"
51 
52 #endif
53