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 TYPE_ARM_GICV3_ITS "arm-gicv3-its" 29 30 #define ITS_CONTROL_SIZE 0x10000 31 #define ITS_TRANS_SIZE 0x10000 32 #define ITS_SIZE (ITS_CONTROL_SIZE + ITS_TRANS_SIZE) 33 34 #define GITS_CTLR 0x0 35 #define GITS_IIDR 0x4 36 #define GITS_TYPER 0x8 37 #define GITS_CBASER 0x80 38 #define GITS_CWRITER 0x88 39 #define GITS_CREADR 0x90 40 #define GITS_BASER 0x100 41 42 #define GITS_TRANSLATER 0x0040 43 44 typedef struct { 45 bool valid; 46 bool indirect; 47 uint16_t entry_sz; 48 uint32_t page_sz; 49 uint32_t max_entries; 50 union { 51 uint32_t max_devids; 52 uint32_t max_collids; 53 } maxids; 54 uint64_t base_addr; 55 } TableDesc; 56 57 typedef struct { 58 bool valid; 59 uint32_t max_entries; 60 uint64_t base_addr; 61 } CmdQDesc; 62 63 struct GICv3ITSState { 64 SysBusDevice parent_obj; 65 66 MemoryRegion iomem_main; 67 MemoryRegion iomem_its_cntrl; 68 MemoryRegion iomem_its_translation; 69 70 GICv3State *gicv3; 71 72 int dev_fd; /* kvm device fd if backed by kvm vgic support */ 73 uint64_t gits_translater_gpa; 74 bool translater_gpa_known; 75 76 /* Registers */ 77 uint32_t ctlr; 78 uint32_t iidr; 79 uint64_t typer; 80 uint64_t cbaser; 81 uint64_t cwriter; 82 uint64_t creadr; 83 uint64_t baser[8]; 84 85 TableDesc dt; 86 TableDesc ct; 87 CmdQDesc cq; 88 89 Error *migration_blocker; 90 }; 91 92 typedef struct GICv3ITSState GICv3ITSState; 93 94 void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops, 95 const MemoryRegionOps *tops); 96 97 #define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common" 98 typedef struct GICv3ITSCommonClass GICv3ITSCommonClass; 99 DECLARE_OBJ_CHECKERS(GICv3ITSState, GICv3ITSCommonClass, 100 ARM_GICV3_ITS_COMMON, TYPE_ARM_GICV3_ITS_COMMON) 101 102 struct GICv3ITSCommonClass { 103 /*< private >*/ 104 SysBusDeviceClass parent_class; 105 /*< public >*/ 106 107 int (*send_msi)(GICv3ITSState *s, uint32_t data, uint16_t devid); 108 void (*pre_save)(GICv3ITSState *s); 109 void (*post_load)(GICv3ITSState *s); 110 }; 111 112 113 #endif 114