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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Support for processors implementing MIPS64 instruction set
*
* Copyright (C) 2014 by Andrey Sidorov <anysidorov@gmail.com>
* Copyright (C) 2014 by Aleksey Kuleshov <rndfax@yandex.ru>
* Copyright (C) 2014-2019 by Peter Mamonov <pmamonov@gmail.com>
*
* Based on the work of:
* Copyright (C) 2008 by Spencer Oliver
* Copyright (C) 2008 by David T.L. Wong
* Copyright (C) 2010 by Konstantin Kostyukhin, Nikolay Shmyrev
*/
#ifndef OPENOCD_TARGET_MIPS64_H
#define OPENOCD_TARGET_MIPS64_H
#include "target.h"
#include "register.h"
#include "mips64_pracc.h"
#define MIPS64_COMMON_MAGIC 0xB640B640U
/* MIPS64 CP0 registers */
#define MIPS64_C0_INDEX 0
#define MIPS64_C0_RANDOM 1
#define MIPS64_C0_ENTRYLO0 2
#define MIPS64_C0_ENTRYLO1 3
#define MIPS64_C0_CONTEXT 4
#define MIPS64_C0_PAGEMASK 5
#define MIPS64_C0_WIRED 6
#define MIPS64_C0_BADVADDR 8
#define MIPS64_C0_COUNT 9
#define MIPS64_C0_ENTRYHI 10
#define MIPS64_C0_COMPARE 11
#define MIPS64_C0_STATUS 12
#define MIPS64_C0_CAUSE 13
#define MIPS64_C0_EPC 14
#define MIPS64_C0_PRID 15
#define MIPS64_C0_CONFIG 16
#define MIPS64_C0_LLA 17
#define MIPS64_C0_WATCHLO 18
#define MIPS64_C0_WATCHHI 19
#define MIPS64_C0_XCONTEXT 20
#define MIPS64_C0_MEMCTRL 22
#define MIPS64_C0_DEBUG 23
#define MIPS64_C0_DEPC 24
#define MIPS64_C0_PERFCOUNT 25
#define MIPS64_C0_ECC 26
#define MIPS64_C0_CACHERR 27
#define MIPS64_C0_TAGLO 28
#define MIPS64_C0_TAGHI 29
#define MIPS64_C0_DATAHI 29
#define MIPS64_C0_EEPC 30
/* MIPS64 CP1 registers */
#define MIPS64_C1_FIR 0
#define MIPS64_C1_FCONFIG 24
#define MIPS64_C1_FCSR 31
#define MIPS64_C1_FCCR 25
#define MIPS64_C1_FEXR 26
#define MIPS64_C1_FENR 28
/* offsets into mips64 register cache */
#define MIPS64_NUM_CORE_REGS 34
#define MIPS64_NUM_C0_REGS 34
#define MIPS64_NUM_FP_REGS 38
#define MIPS64_NUM_REGS (MIPS64_NUM_CORE_REGS + \
MIPS64_NUM_C0_REGS + \
MIPS64_NUM_FP_REGS)
#define MIPS64_NUM_CORE_C0_REGS (MIPS64_NUM_CORE_REGS + MIPS64_NUM_C0_REGS)
#define MIPS64_PC MIPS64_NUM_CORE_REGS
struct mips64_comparator {
bool used;
uint64_t bp_value;
uint64_t reg_address;
};
struct mips64_common {
unsigned int common_magic;
void *arch_info;
struct reg_cache *core_cache;
struct mips_ejtag ejtag_info;
uint64_t core_regs[MIPS64_NUM_REGS];
struct working_area *fast_data_area;
bool bp_scanned;
int num_inst_bpoints;
int num_data_bpoints;
int num_inst_bpoints_avail;
int num_data_bpoints_avail;
struct mips64_comparator *inst_break_list;
struct mips64_comparator *data_break_list;
/* register cache to processor synchronization */
int (*read_core_reg)(struct target *target, int num);
int (*write_core_reg)(struct target *target, int num);
bool mips64mode32;
};
struct mips64_core_reg {
uint32_t num;
struct target *target;
struct mips64_common *mips64_common;
uint8_t value[8];
struct reg_feature feature;
struct reg_data_type reg_data_type;
};
#define MIPS64_OP_SRL 0x02
#define MIPS64_OP_BEQ 0x04
#define MIPS64_OP_BNE 0x05
#define MIPS64_OP_ADDI 0x08
#define MIPS64_OP_ANDI 0x0c
#define MIPS64_OP_DADDI 0x18
#define MIPS64_OP_DADDIU 0x19
#define MIPS64_OP_AND 0x24
#define MIPS64_OP_LUI 0x0F
#define MIPS64_OP_LW 0x23
#define MIPS64_OP_LD 0x37
#define MIPS64_OP_LBU 0x24
#define MIPS64_OP_LHU 0x25
#define MIPS64_OP_MFHI 0x10
#define MIPS64_OP_MTHI 0x11
#define MIPS64_OP_MFLO 0x12
#define MIPS64_OP_MTLO 0x13
#define MIPS64_OP_SB 0x28
#define MIPS64_OP_SH 0x29
#define MIPS64_OP_SW 0x2B
#define MIPS64_OP_SD 0x3F
#define MIPS64_OP_ORI 0x0D
#define MIPS64_OP_JR 0x08
#define MIPS64_OP_COP0 0x10
#define MIPS64_OP_COP1 0x11
#define MIPS64_OP_COP2 0x12
#define MIPS64_COP_MF 0x00
#define MIPS64_COP_DMF 0x01
#define MIPS64_COP_MT 0x04
#define MIPS64_COP_DMT 0x05
#define MIPS64_COP_CF 0x02
#define MIPS64_COP_CT 0x06
#define MIPS64_R_INST(opcode, rs, rt, rd, shamt, funct) \
(((opcode) << 26) | ((rs) << 21) | ((rt) << 16) | ((rd) << 11) | ((shamt) << 6) | (funct))
#define MIPS64_I_INST(opcode, rs, rt, immd) (((opcode) << 26) | ((rs) << 21) | ((rt) << 16) | (immd))
#define MIPS64_J_INST(opcode, addr) (((opcode) << 26) | (addr))
#define MIPS64_NOP 0
#define MIPS64_ADDI(tar, src, val) MIPS64_I_INST(MIPS64_OP_ADDI, src, tar, val)
#define MIPS64_DADDI(tar, src, val) MIPS64_I_INST(MIPS64_OP_DADDI, src, tar, val)
#define MIPS64_DADDIU(tar, src, val) MIPS64_I_INST(MIPS64_OP_DADDIU, src, tar, val)
#define MIPS64_AND(reg, off, val) MIPS64_R_INST(0, off, val, reg, 0, MIPS64_OP_AND)
#define MIPS64_ANDI(d, s, im) MIPS64_I_INST(MIPS64_OP_ANDI, s, d, im)
#define MIPS64_SRL(d, w, sh) MIPS64_R_INST(0, 0, w, d, sh, MIPS64_OP_SRL)
#define MIPS64_B(off) MIPS64_BEQ(0, 0, off)
#define MIPS64_BEQ(src, tar, off) MIPS64_I_INST(MIPS64_OP_BEQ, src, tar, off)
#define MIPS64_BNE(src, tar, off) MIPS64_I_INST(MIPS64_OP_BNE, src, tar, off)
#define MIPS64_MFC0(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP0, MIPS64_COP_MF, gpr, cpr, 0, sel)
#define MIPS64_DMFC0(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP0, MIPS64_COP_DMF, gpr, cpr, 0, sel)
#define MIPS64_MTC0(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP0, MIPS64_COP_MT, gpr, cpr, 0, sel)
#define MIPS64_DMTC0(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP0, MIPS64_COP_DMT, gpr, cpr, 0, sel)
#define MIPS64_MFC1(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP1, MIPS64_COP_MF, gpr, cpr, 0, 0)
#define MIPS64_DMFC1(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP1, MIPS64_COP_DMF, gpr, cpr, 0, 0)
#define MIPS64_MTC1(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP1, MIPS64_COP_MT, gpr, cpr, 0, 0)
#define MIPS64_DMTC1(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP1, MIPS64_COP_DMT, gpr, cpr, 0, 0)
#define MIPS64_MFC2(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP2, MIPS64_COP_MF, gpr, cpr, 0, sel)
#define MIPS64_MTC2(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP2, MIPS64_COP_MT, gpr, cpr, 0, sel)
#define MIPS64_CFC1(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP1, MIPS64_COP_CF, gpr, cpr, 0, 0)
#define MIPS64_CTC1(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP1, MIPS64_COP_CT, gpr, cpr, 0, 0)
#define MIPS64_CFC2(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP2, MIPS64_COP_CF, gpr, cpr, 0, sel)
#define MIPS64_CTC2(gpr, cpr, sel) MIPS64_R_INST(MIPS64_OP_COP2, MIPS64_COP_CT, gpr, cpr, 0, sel)
#define MIPS64_LBU(reg, off, base) MIPS64_I_INST(MIPS64_OP_LBU, base, reg, off)
#define MIPS64_LHU(reg, off, base) MIPS64_I_INST(MIPS64_OP_LHU, base, reg, off)
#define MIPS64_LUI(reg, val) MIPS64_I_INST(MIPS64_OP_LUI, 0, reg, val)
#define MIPS64_LW(reg, off, base) MIPS64_I_INST(MIPS64_OP_LW, base, reg, off)
#define MIPS64_LD(reg, off, base) MIPS64_I_INST(MIPS64_OP_LD, base, reg, off)
#define MIPS64_MFLO(reg) MIPS64_R_INST(0, 0, 0, reg, 0, MIPS64_OP_MFLO)
#define MIPS64_MFHI(reg) MIPS64_R_INST(0, 0, 0, reg, 0, MIPS64_OP_MFHI)
#define MIPS64_MTLO(reg) MIPS64_R_INST(0, reg, 0, 0, 0, MIPS64_OP_MTLO)
#define MIPS64_MTHI(reg) MIPS64_R_INST(0, reg, 0, 0, 0, MIPS64_OP_MTHI)
#define MIPS64_ORI(src, tar, val) MIPS64_I_INST(MIPS64_OP_ORI, src, tar, val)
#define MIPS64_SB(reg, off, base) MIPS64_I_INST(MIPS64_OP_SB, base, reg, off)
#define MIPS64_SH(reg, off, base) MIPS64_I_INST(MIPS64_OP_SH, base, reg, off)
#define MIPS64_SW(reg, off, base) MIPS64_I_INST(MIPS64_OP_SW, base, reg, off)
#define MIPS64_SD(reg, off, base) MIPS64_I_INST(MIPS64_OP_SD, base, reg, off)
#define MIPS64_CACHE(op, reg, off) (47 << 26 | (reg) << 21 | (op) << 16 | (off))
#define MIPS64_SYNCI(reg, off) (1 << 26 | (reg) << 21 | 0x1f << 16 | (off))
#define MIPS64_JR(reg) MIPS64_R_INST(0, reg, 0, 0, 0, MIPS64_OP_JR)
/* ejtag specific instructions */
#define MIPS64_DRET 0x4200001F
#define MIPS64_SDBBP 0x7000003F
#define MIPS64_SDBBP_LE 0x3f000007
#define MIPS64_SDBBP_SIZE 4
#define MIPS16_SDBBP_SIZE 2
#define MIPS64_SYNC 0x0000000F
int mips64_arch_state(struct target *target);
int mips64_init_arch_info(struct target *target, struct mips64_common *mips64, struct jtag_tap *tap);
int mips64_restore_context(struct target *target);
int mips64_save_context(struct target *target);
int mips64_build_reg_cache(struct target *target);
int mips64_run_algorithm(struct target *target, int num_mem_params, struct mem_param *mem_params,
int num_reg_params, struct reg_param *reg_params,
target_addr_t entry_point, target_addr_t exit_point,
unsigned int timeout_ms, void *arch_info);
int mips64_configure_break_unit(struct target *target);
int mips64_enable_interrupts(struct target *target, bool enable);
int mips64_examine(struct target *target);
int mips64_register_commands(struct command_context *cmd_ctx);
int mips64_invalidate_core_regs(struct target *target);
int mips64_get_gdb_reg_list(struct target *target,
struct reg **reg_list[], int *reg_list_size,
enum target_register_class reg_class);
#endif /* OPENOCD_TARGET_MIPS64_H */