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/*
* Copyright (C) 2015 by Matthias Welwarsky <matthias.welwarsky@sysgo.com>
*
* 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.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdint.h>
#include <stdbool.h>
#include "armv8.h"
#include "armv8_opcodes.h"
static const uint32_t a64_opcodes[ARMV8_OPC_NUM] = {
[READ_REG_CLIDR] = ARMV8_MRS(SYSTEM_CLIDR, 0),
[READ_REG_CSSELR] = ARMV8_MRS(SYSTEM_CSSELR, 0),
[READ_REG_CCSIDR] = ARMV8_MRS(SYSTEM_CCSIDR, 0),
[WRITE_REG_CSSELR] = ARMV8_MSR_GP(SYSTEM_CSSELR, 0),
[READ_REG_MPIDR] = ARMV8_MRS(SYSTEM_MPIDR, 0),
[READ_REG_DTRRX] = ARMV8_MRS(SYSTEM_DBG_DTRRX_EL0, 0),
[WRITE_REG_DTRTX] = ARMV8_MSR_GP(SYSTEM_DBG_DTRTX_EL0, 0),
[WRITE_REG_DSPSR] = ARMV8_MSR_DSPSR(0),
[READ_REG_DSPSR] = ARMV8_MRS_DSPSR(0),
[ARMV8_OPC_DSB_SY] = ARMV8_DSB_SY,
};
static const uint32_t t32_opcodes[ARMV8_OPC_NUM] = {
[READ_REG_CLIDR] = ARMV4_5_MRC(15, 1, 0, 0, 0, 1),
[READ_REG_CSSELR] = ARMV4_5_MRC(15, 2, 0, 0, 0, 0),
[READ_REG_CCSIDR] = ARMV4_5_MRC(15, 1, 0, 0, 0, 0),
[WRITE_REG_CSSELR] = ARMV4_5_MCR(15, 2, 0, 0, 0, 0),
[READ_REG_MPIDR] = ARMV4_5_MRC(15, 0, 0, 0, 0, 5),
[READ_REG_DTRRX] = ARMV4_5_MRC(14, 0, 0, 0, 5, 0),
[WRITE_REG_DTRTX] = ARMV4_5_MCR(14, 0, 0, 0, 5, 0),
[WRITE_REG_DSPSR] = ARMV8_MCR_DSPSR(0),
[READ_REG_DSPSR] = ARMV8_MRC_DSPSR(0),
[ARMV8_OPC_DSB_SY] = ARMV8_DSB_SY_T1,
};
void armv8_select_opcodes(struct armv8_common *armv8, bool state_is_aarch64)
{
if (state_is_aarch64)
armv8->opcodes = &a64_opcodes[0];
else
armv8->opcodes = &t32_opcodes[0];
}
uint32_t armv8_opcode(struct armv8_common *armv8, enum armv8_opcode code)
{
if ((int)code >= ARMV8_OPC_NUM)
return -1;
return *(armv8->opcodes + code);
}
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