1 /*
2  * ITS support for ARM GICv3
3  *
4  * Copyright (c) 2015 Samsung Electronics Co., Ltd.
5  * Written by Pavel Fedin
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 QEMU_ARM_GICV3_ITS_COMMON_H
22 #define QEMU_ARM_GICV3_ITS_COMMON_H
23 
24 #include "hw/sysbus.h"
25 #include "hw/intc/arm_gicv3_common.h"
26 
27 #define ITS_CONTROL_SIZE 0x10000
28 #define ITS_TRANS_SIZE   0x10000
29 #define ITS_SIZE         (ITS_CONTROL_SIZE + ITS_TRANS_SIZE)
30 
31 struct GICv3ITSState {
32     SysBusDevice parent_obj;
33 
34     MemoryRegion iomem_main;
35     MemoryRegion iomem_its_cntrl;
36     MemoryRegion iomem_its_translation;
37 
38     GICv3State *gicv3;
39 
40     int dev_fd; /* kvm device fd if backed by kvm vgic support */
41     uint64_t gits_translater_gpa;
42     bool translater_gpa_known;
43 
44     /* Registers */
45     uint32_t ctlr;
46     uint64_t cbaser;
47     uint64_t cwriter;
48     uint64_t creadr;
49     uint64_t baser[8];
50 
51     Error *migration_blocker;
52 };
53 
54 typedef struct GICv3ITSState GICv3ITSState;
55 
56 void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops);
57 
58 #define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common"
59 #define ARM_GICV3_ITS_COMMON(obj) \
60      OBJECT_CHECK(GICv3ITSState, (obj), TYPE_ARM_GICV3_ITS_COMMON)
61 #define ARM_GICV3_ITS_COMMON_CLASS(klass) \
62      OBJECT_CLASS_CHECK(GICv3ITSCommonClass, (klass), TYPE_ARM_GICV3_ITS_COMMON)
63 #define ARM_GICV3_ITS_COMMON_GET_CLASS(obj) \
64      OBJECT_GET_CLASS(GICv3ITSCommonClass, (obj), TYPE_ARM_GICV3_ITS_COMMON)
65 
66 struct GICv3ITSCommonClass {
67     /*< private >*/
68     SysBusDeviceClass parent_class;
69     /*< public >*/
70 
71     int (*send_msi)(GICv3ITSState *s, uint32_t data, uint16_t devid);
72     void (*pre_save)(GICv3ITSState *s);
73     void (*post_load)(GICv3ITSState *s);
74 };
75 
76 typedef struct GICv3ITSCommonClass GICv3ITSCommonClass;
77 
78 #endif
79