HIFIVE1-VP/riscv/incl/iss/arch/rv64ia.h

213 lines
5.9 KiB
C++

////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017, MINRES Technologies GmbH
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Created on: Tue Sep 26 17:41:14 CEST 2017
// * rv64ia.h Author: <CoreDSL Generator>
//
////////////////////////////////////////////////////////////////////////////////
#ifndef _RV64IA_H_
#define _RV64IA_H_
#include <iss/arch/traits.h>
#include <iss/arch_if.h>
#include <iss/vm_if.h>
namespace iss {
namespace arch {
struct rv64ia;
template <> struct traits<rv64ia> {
enum constants {
XLEN = 64,
XLEN2 = 128,
XLEN_BIT_MASK = 63,
PCLEN = 64,
fence = 0,
fencei = 1,
fencevmal = 2,
fencevmau = 3,
MISA_VAL = 2147750144,
PGSIZE = 4096,
PGMASK = 4095
};
enum reg_e {
X0,
X1,
X2,
X3,
X4,
X5,
X6,
X7,
X8,
X9,
X10,
X11,
X12,
X13,
X14,
X15,
X16,
X17,
X18,
X19,
X20,
X21,
X22,
X23,
X24,
X25,
X26,
X27,
X28,
X29,
X30,
X31,
PC,
NUM_REGS,
NEXT_PC = NUM_REGS,
TRAP_STATE,
PENDING_TRAP,
MACHINE_STATE,
ICOUNT
};
using reg_t = uint64_t;
using addr_t = uint64_t;
using code_word_t = uint64_t; // TODO: check removal
using virt_addr_t = iss::typed_addr_t<iss::VIRTUAL>;
using phys_addr_t = iss::typed_addr_t<iss::PHYSICAL>;
constexpr static unsigned reg_bit_width(unsigned r) {
const uint32_t RV64IA_reg_size[] = {64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 32, 32, 32, 64};
return RV64IA_reg_size[r];
}
constexpr static unsigned reg_byte_offset(unsigned r) {
const uint32_t RV64IA_reg_byte_offset[] = {0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96,
104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 200,
208, 216, 224, 232, 240, 248, 256, 264, 272, 276, 280, 288, 296};
return RV64IA_reg_byte_offset[r];
}
enum sreg_flag_e { FLAGS };
enum mem_type_e { MEM, CSR, FENCE, RES };
};
struct rv64ia : public arch_if {
using virt_addr_t = typename traits<rv64ia>::virt_addr_t;
using phys_addr_t = typename traits<rv64ia>::phys_addr_t;
using reg_t = typename traits<rv64ia>::reg_t;
using addr_t = typename traits<rv64ia>::addr_t;
rv64ia();
~rv64ia();
void reset(uint64_t address = 0) override;
uint8_t *get_regs_base_ptr() override;
/// deprecated
void get_reg(short idx, std::vector<uint8_t> &value) override {}
void set_reg(short idx, const std::vector<uint8_t> &value) override {}
/// deprecated
bool get_flag(int flag) override { return false; }
void set_flag(int, bool value) override{};
/// deprecated
void update_flags(operations op, uint64_t opr1, uint64_t opr2) override{};
void notify_phase(exec_phase phase) {
if (phase == ISTART) {
++reg.icount;
reg.PC = reg.NEXT_PC;
reg.trap_state = reg.pending_trap;
}
}
uint64_t get_icount() { return reg.icount; }
virtual phys_addr_t v2p(const iss::addr_t &pc);
virtual iss::sync_type needed_sync() const { return iss::PRE_SYNC; }
protected:
struct RV64IA_regs {
uint64_t X0;
uint64_t X1;
uint64_t X2;
uint64_t X3;
uint64_t X4;
uint64_t X5;
uint64_t X6;
uint64_t X7;
uint64_t X8;
uint64_t X9;
uint64_t X10;
uint64_t X11;
uint64_t X12;
uint64_t X13;
uint64_t X14;
uint64_t X15;
uint64_t X16;
uint64_t X17;
uint64_t X18;
uint64_t X19;
uint64_t X20;
uint64_t X21;
uint64_t X22;
uint64_t X23;
uint64_t X24;
uint64_t X25;
uint64_t X26;
uint64_t X27;
uint64_t X28;
uint64_t X29;
uint64_t X30;
uint64_t X31;
uint64_t PC;
uint64_t NEXT_PC;
uint32_t trap_state, pending_trap, machine_state;
uint64_t icount;
} reg;
};
}
}
#endif /* _RV64IA_H_ */