1 /* 2 * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef HEXAGON_CPU_H 19 #define HEXAGON_CPU_H 20 21 /* Forward declaration needed by some of the header files */ 22 typedef struct CPUHexagonState CPUHexagonState; 23 24 #include "fpu/softfloat-types.h" 25 26 #include "qemu-common.h" 27 #include "exec/cpu-defs.h" 28 #include "hex_regs.h" 29 30 #define NUM_PREGS 4 31 #define TOTAL_PER_THREAD_REGS 64 32 33 #define SLOTS_MAX 4 34 #define STORES_MAX 2 35 #define REG_WRITES_MAX 32 36 #define PRED_WRITES_MAX 5 /* 4 insns + endloop */ 37 38 #define TYPE_HEXAGON_CPU "hexagon-cpu" 39 40 #define HEXAGON_CPU_TYPE_SUFFIX "-" TYPE_HEXAGON_CPU 41 #define HEXAGON_CPU_TYPE_NAME(name) (name HEXAGON_CPU_TYPE_SUFFIX) 42 #define CPU_RESOLVING_TYPE TYPE_HEXAGON_CPU 43 44 #define TYPE_HEXAGON_CPU_V67 HEXAGON_CPU_TYPE_NAME("v67") 45 46 #define MMU_USER_IDX 0 47 48 typedef struct { 49 target_ulong va; 50 uint8_t width; 51 uint32_t data32; 52 uint64_t data64; 53 } MemLog; 54 55 #define EXEC_STATUS_OK 0x0000 56 #define EXEC_STATUS_STOP 0x0002 57 #define EXEC_STATUS_REPLAY 0x0010 58 #define EXEC_STATUS_LOCKED 0x0020 59 #define EXEC_STATUS_EXCEPTION 0x0100 60 61 62 #define EXCEPTION_DETECTED (env->status & EXEC_STATUS_EXCEPTION) 63 #define REPLAY_DETECTED (env->status & EXEC_STATUS_REPLAY) 64 #define CLEAR_EXCEPTION (env->status &= (~EXEC_STATUS_EXCEPTION)) 65 #define SET_EXCEPTION (env->status |= EXEC_STATUS_EXCEPTION) 66 67 struct CPUHexagonState { 68 target_ulong gpr[TOTAL_PER_THREAD_REGS]; 69 target_ulong pred[NUM_PREGS]; 70 target_ulong branch_taken; 71 target_ulong next_PC; 72 73 /* For comparing with LLDB on target - see adjust_stack_ptrs function */ 74 target_ulong last_pc_dumped; 75 target_ulong stack_start; 76 77 uint8_t slot_cancelled; 78 target_ulong new_value[TOTAL_PER_THREAD_REGS]; 79 80 /* 81 * Only used when HEX_DEBUG is on, but unconditionally included 82 * to reduce recompile time when turning HEX_DEBUG on/off. 83 */ 84 target_ulong this_PC; 85 target_ulong reg_written[TOTAL_PER_THREAD_REGS]; 86 87 target_ulong new_pred_value[NUM_PREGS]; 88 target_ulong pred_written; 89 90 MemLog mem_log_stores[STORES_MAX]; 91 target_ulong pkt_has_store_s1; 92 target_ulong dczero_addr; 93 94 float_status fp_status; 95 96 target_ulong llsc_addr; 97 target_ulong llsc_val; 98 uint64_t llsc_val_i64; 99 100 target_ulong is_gather_store_insn; 101 target_ulong gather_issued; 102 }; 103 104 #define HEXAGON_CPU_CLASS(klass) \ 105 OBJECT_CLASS_CHECK(HexagonCPUClass, (klass), TYPE_HEXAGON_CPU) 106 #define HEXAGON_CPU(obj) \ 107 OBJECT_CHECK(HexagonCPU, (obj), TYPE_HEXAGON_CPU) 108 #define HEXAGON_CPU_GET_CLASS(obj) \ 109 OBJECT_GET_CLASS(HexagonCPUClass, (obj), TYPE_HEXAGON_CPU) 110 111 typedef struct HexagonCPUClass { 112 /*< private >*/ 113 CPUClass parent_class; 114 /*< public >*/ 115 DeviceRealize parent_realize; 116 DeviceReset parent_reset; 117 } HexagonCPUClass; 118 119 typedef struct HexagonCPU { 120 /*< private >*/ 121 CPUState parent_obj; 122 /*< public >*/ 123 CPUNegativeOffsetState neg; 124 CPUHexagonState env; 125 126 bool lldb_compat; 127 target_ulong lldb_stack_adjust; 128 } HexagonCPU; 129 130 static inline HexagonCPU *hexagon_env_get_cpu(CPUHexagonState *env) 131 { 132 return container_of(env, HexagonCPU, env); 133 } 134 135 #include "cpu_bits.h" 136 137 #define cpu_signal_handler cpu_hexagon_signal_handler 138 int cpu_hexagon_signal_handler(int host_signum, void *pinfo, void *puc); 139 140 static inline void cpu_get_tb_cpu_state(CPUHexagonState *env, target_ulong *pc, 141 target_ulong *cs_base, uint32_t *flags) 142 { 143 *pc = env->gpr[HEX_REG_PC]; 144 *cs_base = 0; 145 #ifdef CONFIG_USER_ONLY 146 *flags = 0; 147 #else 148 #error System mode not supported on Hexagon yet 149 #endif 150 } 151 152 typedef struct CPUHexagonState CPUArchState; 153 typedef HexagonCPU ArchCPU; 154 155 void hexagon_translate_init(void); 156 157 #include "exec/cpu-all.h" 158 159 #endif /* HEXAGON_CPU_H */ 160