diff options
Diffstat (limited to 'target/hexagon/cpu.h')
| -rw-r--r-- | target/hexagon/cpu.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/target/hexagon/cpu.h b/target/hexagon/cpu.h new file mode 100644 index 0000000000..e04eac591c --- /dev/null +++ b/target/hexagon/cpu.h @@ -0,0 +1,159 @@ +/* + * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef HEXAGON_CPU_H +#define HEXAGON_CPU_H + +/* Forward declaration needed by some of the header files */ +typedef struct CPUHexagonState CPUHexagonState; + +#include "fpu/softfloat-types.h" + +#include "qemu-common.h" +#include "exec/cpu-defs.h" +#include "hex_regs.h" + +#define NUM_PREGS 4 +#define TOTAL_PER_THREAD_REGS 64 + +#define SLOTS_MAX 4 +#define STORES_MAX 2 +#define REG_WRITES_MAX 32 +#define PRED_WRITES_MAX 5 /* 4 insns + endloop */ + +#define TYPE_HEXAGON_CPU "hexagon-cpu" + +#define HEXAGON_CPU_TYPE_SUFFIX "-" TYPE_HEXAGON_CPU +#define HEXAGON_CPU_TYPE_NAME(name) (name HEXAGON_CPU_TYPE_SUFFIX) +#define CPU_RESOLVING_TYPE TYPE_HEXAGON_CPU + +#define TYPE_HEXAGON_CPU_V67 HEXAGON_CPU_TYPE_NAME("v67") + +#define MMU_USER_IDX 0 + +typedef struct { + target_ulong va; + uint8_t width; + uint32_t data32; + uint64_t data64; +} MemLog; + +#define EXEC_STATUS_OK 0x0000 +#define EXEC_STATUS_STOP 0x0002 +#define EXEC_STATUS_REPLAY 0x0010 +#define EXEC_STATUS_LOCKED 0x0020 +#define EXEC_STATUS_EXCEPTION 0x0100 + + +#define EXCEPTION_DETECTED (env->status & EXEC_STATUS_EXCEPTION) +#define REPLAY_DETECTED (env->status & EXEC_STATUS_REPLAY) +#define CLEAR_EXCEPTION (env->status &= (~EXEC_STATUS_EXCEPTION)) +#define SET_EXCEPTION (env->status |= EXEC_STATUS_EXCEPTION) + +struct CPUHexagonState { + target_ulong gpr[TOTAL_PER_THREAD_REGS]; + target_ulong pred[NUM_PREGS]; + target_ulong branch_taken; + target_ulong next_PC; + + /* For comparing with LLDB on target - see adjust_stack_ptrs function */ + target_ulong last_pc_dumped; + target_ulong stack_start; + + uint8_t slot_cancelled; + target_ulong new_value[TOTAL_PER_THREAD_REGS]; + + /* + * Only used when HEX_DEBUG is on, but unconditionally included + * to reduce recompile time when turning HEX_DEBUG on/off. + */ + target_ulong this_PC; + target_ulong reg_written[TOTAL_PER_THREAD_REGS]; + + target_ulong new_pred_value[NUM_PREGS]; + target_ulong pred_written; + + MemLog mem_log_stores[STORES_MAX]; + target_ulong pkt_has_store_s1; + target_ulong dczero_addr; + + float_status fp_status; + + target_ulong llsc_addr; + target_ulong llsc_val; + uint64_t llsc_val_i64; + + target_ulong is_gather_store_insn; + target_ulong gather_issued; +}; + +#define HEXAGON_CPU_CLASS(klass) \ + OBJECT_CLASS_CHECK(HexagonCPUClass, (klass), TYPE_HEXAGON_CPU) +#define HEXAGON_CPU(obj) \ + OBJECT_CHECK(HexagonCPU, (obj), TYPE_HEXAGON_CPU) +#define HEXAGON_CPU_GET_CLASS(obj) \ + OBJECT_GET_CLASS(HexagonCPUClass, (obj), TYPE_HEXAGON_CPU) + +typedef struct HexagonCPUClass { + /*< private >*/ + CPUClass parent_class; + /*< public >*/ + DeviceRealize parent_realize; + DeviceReset parent_reset; +} HexagonCPUClass; + +typedef struct HexagonCPU { + /*< private >*/ + CPUState parent_obj; + /*< public >*/ + CPUNegativeOffsetState neg; + CPUHexagonState env; + + bool lldb_compat; + target_ulong lldb_stack_adjust; +} HexagonCPU; + +static inline HexagonCPU *hexagon_env_get_cpu(CPUHexagonState *env) +{ + return container_of(env, HexagonCPU, env); +} + +#include "cpu_bits.h" + +#define cpu_signal_handler cpu_hexagon_signal_handler +int cpu_hexagon_signal_handler(int host_signum, void *pinfo, void *puc); + +static inline void cpu_get_tb_cpu_state(CPUHexagonState *env, target_ulong *pc, + target_ulong *cs_base, uint32_t *flags) +{ + *pc = env->gpr[HEX_REG_PC]; + *cs_base = 0; +#ifdef CONFIG_USER_ONLY + *flags = 0; +#else +#error System mode not supported on Hexagon yet +#endif +} + +typedef struct CPUHexagonState CPUArchState; +typedef HexagonCPU ArchCPU; + +void hexagon_translate_init(void); + +#include "exec/cpu-all.h" + +#endif /* HEXAGON_CPU_H */ |