f79e80899d
The function is trivial for user-only, but still must be present. Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
161 lines
4.3 KiB
C
161 lines
4.3 KiB
C
/*
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* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HEXAGON_CPU_H
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#define HEXAGON_CPU_H
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/* Forward declaration needed by some of the header files */
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typedef struct CPUHexagonState CPUHexagonState;
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#include "fpu/softfloat-types.h"
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#include "qemu-common.h"
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#include "exec/cpu-defs.h"
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#include "hex_regs.h"
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#define NUM_PREGS 4
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#define TOTAL_PER_THREAD_REGS 64
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#define SLOTS_MAX 4
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#define STORES_MAX 2
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#define REG_WRITES_MAX 32
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#define PRED_WRITES_MAX 5 /* 4 insns + endloop */
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#define TYPE_HEXAGON_CPU "hexagon-cpu"
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#define HEXAGON_CPU_TYPE_SUFFIX "-" TYPE_HEXAGON_CPU
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#define HEXAGON_CPU_TYPE_NAME(name) (name HEXAGON_CPU_TYPE_SUFFIX)
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#define CPU_RESOLVING_TYPE TYPE_HEXAGON_CPU
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#define TYPE_HEXAGON_CPU_V67 HEXAGON_CPU_TYPE_NAME("v67")
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#define MMU_USER_IDX 0
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typedef struct {
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target_ulong va;
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uint8_t width;
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uint32_t data32;
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uint64_t data64;
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} MemLog;
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#define EXEC_STATUS_OK 0x0000
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#define EXEC_STATUS_STOP 0x0002
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#define EXEC_STATUS_REPLAY 0x0010
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#define EXEC_STATUS_LOCKED 0x0020
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#define EXEC_STATUS_EXCEPTION 0x0100
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#define EXCEPTION_DETECTED (env->status & EXEC_STATUS_EXCEPTION)
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#define REPLAY_DETECTED (env->status & EXEC_STATUS_REPLAY)
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#define CLEAR_EXCEPTION (env->status &= (~EXEC_STATUS_EXCEPTION))
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#define SET_EXCEPTION (env->status |= EXEC_STATUS_EXCEPTION)
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struct CPUHexagonState {
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target_ulong gpr[TOTAL_PER_THREAD_REGS];
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target_ulong pred[NUM_PREGS];
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target_ulong branch_taken;
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target_ulong next_PC;
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/* For comparing with LLDB on target - see adjust_stack_ptrs function */
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target_ulong last_pc_dumped;
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target_ulong stack_start;
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uint8_t slot_cancelled;
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target_ulong new_value[TOTAL_PER_THREAD_REGS];
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/*
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* Only used when HEX_DEBUG is on, but unconditionally included
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* to reduce recompile time when turning HEX_DEBUG on/off.
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*/
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target_ulong this_PC;
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target_ulong reg_written[TOTAL_PER_THREAD_REGS];
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target_ulong new_pred_value[NUM_PREGS];
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target_ulong pred_written;
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MemLog mem_log_stores[STORES_MAX];
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target_ulong pkt_has_store_s1;
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target_ulong dczero_addr;
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float_status fp_status;
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target_ulong llsc_addr;
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target_ulong llsc_val;
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uint64_t llsc_val_i64;
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target_ulong is_gather_store_insn;
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target_ulong gather_issued;
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};
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#define HEXAGON_CPU_CLASS(klass) \
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OBJECT_CLASS_CHECK(HexagonCPUClass, (klass), TYPE_HEXAGON_CPU)
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#define HEXAGON_CPU(obj) \
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OBJECT_CHECK(HexagonCPU, (obj), TYPE_HEXAGON_CPU)
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#define HEXAGON_CPU_GET_CLASS(obj) \
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OBJECT_GET_CLASS(HexagonCPUClass, (obj), TYPE_HEXAGON_CPU)
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typedef struct HexagonCPUClass {
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/*< private >*/
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CPUClass parent_class;
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/*< public >*/
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DeviceRealize parent_realize;
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DeviceReset parent_reset;
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} HexagonCPUClass;
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typedef struct HexagonCPU {
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/*< private >*/
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CPUState parent_obj;
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/*< public >*/
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CPUNegativeOffsetState neg;
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CPUHexagonState env;
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bool lldb_compat;
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target_ulong lldb_stack_adjust;
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} HexagonCPU;
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#include "cpu_bits.h"
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static inline void cpu_get_tb_cpu_state(CPUHexagonState *env, target_ulong *pc,
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target_ulong *cs_base, uint32_t *flags)
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{
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*pc = env->gpr[HEX_REG_PC];
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*cs_base = 0;
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#ifdef CONFIG_USER_ONLY
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*flags = 0;
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#else
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#error System mode not supported on Hexagon yet
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#endif
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}
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static inline int cpu_mmu_index(CPUHexagonState *env, bool ifetch)
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{
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#ifdef CONFIG_USER_ONLY
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return MMU_USER_IDX;
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#else
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#error System mode not supported on Hexagon yet
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#endif
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}
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typedef struct CPUHexagonState CPUArchState;
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typedef HexagonCPU ArchCPU;
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void hexagon_translate_init(void);
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#include "exec/cpu-all.h"
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#endif /* HEXAGON_CPU_H */
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