Merge remote-tracking branch 'remotes/alistair23/tags/pull-riscv-to-apply-20211022...
[qemu.git] / include / hw / intc / arm_gicv3_its_common.h
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 #include "qom/object.h"
27
28 #define ITS_CONTROL_SIZE 0x10000
29 #define ITS_TRANS_SIZE 0x10000
30 #define ITS_SIZE (ITS_CONTROL_SIZE + ITS_TRANS_SIZE)
31
32 #define GITS_CTLR 0x0
33 #define GITS_IIDR 0x4
34 #define GITS_CBASER 0x80
35 #define GITS_CWRITER 0x88
36 #define GITS_CREADR 0x90
37 #define GITS_BASER 0x100
38
39 struct GICv3ITSState {
40 SysBusDevice parent_obj;
41
42 MemoryRegion iomem_main;
43 MemoryRegion iomem_its_cntrl;
44 MemoryRegion iomem_its_translation;
45
46 GICv3State *gicv3;
47
48 int dev_fd; /* kvm device fd if backed by kvm vgic support */
49 uint64_t gits_translater_gpa;
50 bool translater_gpa_known;
51
52 /* Registers */
53 uint32_t ctlr;
54 uint32_t iidr;
55 uint64_t cbaser;
56 uint64_t cwriter;
57 uint64_t creadr;
58 uint64_t baser[8];
59
60 Error *migration_blocker;
61 };
62
63 typedef struct GICv3ITSState GICv3ITSState;
64
65 void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops);
66
67 #define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common"
68 typedef struct GICv3ITSCommonClass GICv3ITSCommonClass;
69 DECLARE_OBJ_CHECKERS(GICv3ITSState, GICv3ITSCommonClass,
70 ARM_GICV3_ITS_COMMON, TYPE_ARM_GICV3_ITS_COMMON)
71
72 struct GICv3ITSCommonClass {
73 /*< private >*/
74 SysBusDeviceClass parent_class;
75 /*< public >*/
76
77 int (*send_msi)(GICv3ITSState *s, uint32_t data, uint16_t devid);
78 void (*pre_save)(GICv3ITSState *s);
79 void (*post_load)(GICv3ITSState *s);
80 };
81
82
83 #endif