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 indirect; 46 uint16_t entry_sz; 47 uint32_t page_sz; 48 uint32_t num_entries; 49 uint64_t base_addr; 50 } TableDesc; 51 52 typedef struct { 53 uint32_t num_entries; 54 uint64_t base_addr; 55 } CmdQDesc; 56 57 struct GICv3ITSState { 58 SysBusDevice parent_obj; 59 60 MemoryRegion iomem_main; 61 MemoryRegion iomem_its_cntrl; 62 MemoryRegion iomem_its_translation; 63 64 GICv3State *gicv3; 65 66 int dev_fd; /* kvm device fd if backed by kvm vgic support */ 67 uint64_t gits_translater_gpa; 68 bool translater_gpa_known; 69 70 /* Registers */ 71 uint32_t ctlr; 72 uint32_t iidr; 73 uint64_t typer; 74 uint64_t cbaser; 75 uint64_t cwriter; 76 uint64_t creadr; 77 uint64_t baser[8]; 78 79 TableDesc dt; 80 TableDesc ct; 81 TableDesc vpet; 82 CmdQDesc cq; 83 84 Error *migration_blocker; 85 }; 86 87 typedef struct GICv3ITSState GICv3ITSState; 88 89 void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops, 90 const MemoryRegionOps *tops); 91 92 /* 93 * The ITS should call this when it is realized to add itself 94 * to its GIC's list of connected ITSes. 95 */ 96 static inline void gicv3_add_its(GICv3State *s, DeviceState *its) 97 { 98 g_ptr_array_add(s->itslist, its); 99 } 100 101 /* 102 * The ITS can use this for operations that must be performed on 103 * every ITS connected to the same GIC that it is 104 */ 105 static inline void gicv3_foreach_its(GICv3State *s, GFunc func, void *opaque) 106 { 107 g_ptr_array_foreach(s->itslist, func, opaque); 108 } 109 110 #define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common" 111 typedef struct GICv3ITSCommonClass GICv3ITSCommonClass; 112 DECLARE_OBJ_CHECKERS(GICv3ITSState, GICv3ITSCommonClass, 113 ARM_GICV3_ITS_COMMON, TYPE_ARM_GICV3_ITS_COMMON) 114 115 struct GICv3ITSCommonClass { 116 /*< private >*/ 117 SysBusDeviceClass parent_class; 118 /*< public >*/ 119 120 int (*send_msi)(GICv3ITSState *s, uint32_t data, uint16_t devid); 121 void (*pre_save)(GICv3ITSState *s); 122 void (*post_load)(GICv3ITSState *s); 123 }; 124 125 126 #endif 127