HIFIVE1-VP/riscv/incl/iss/arch/rv32imac.h

214 lines
6.1 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: Thu Sep 21 17:01:54 CEST 2017
// * rv32imac.h Author: <CoreDSL Generator>
//
////////////////////////////////////////////////////////////////////////////////
#ifndef _RV32IMAC_H_
#define _RV32IMAC_H_
#include <iss/arch/traits.h>
#include <iss/arch_if.h>
#include <iss/vm_if.h>
namespace iss {
namespace arch {
struct rv32imac;
template <> struct traits<rv32imac> {
enum constants {
XLEN = 32,
XLEN2 = 64,
XLEN_BIT_MASK = 31,
PCLEN = 32,
fence = 0,
fencei = 1,
fencevmal = 2,
fencevmau = 3,
MISA_VAL = 1075056897,
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
};
typedef uint32_t reg_t;
typedef uint32_t addr_t;
typedef uint32_t code_word_t; // TODO: check removal
typedef iss::typed_addr_t<iss::VIRTUAL> virt_addr_t;
typedef iss::typed_addr_t<iss::PHYSICAL> phys_addr_t;
constexpr static unsigned reg_bit_width(unsigned r) {
const uint32_t RV32IMAC_reg_size[] = {32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 64};
return RV32IMAC_reg_size[r];
}
constexpr static unsigned reg_byte_offset(unsigned r) {
const uint32_t RV32IMAC_reg_byte_offset[] = {0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48,
52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100,
104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 152, 160};
return RV32IMAC_reg_byte_offset[r];
}
enum sreg_flag_e { FLAGS };
enum mem_type_e { MEM, CSR, FENCE, RES };
};
struct rv32imac : public arch_if {
using virt_addr_t = typename traits<rv32imac>::virt_addr_t;
using phys_addr_t = typename traits<rv32imac>::phys_addr_t;
using reg_t = typename traits<rv32imac>::reg_t;
using addr_t = typename traits<rv32imac>::addr_t;
rv32imac();
~rv32imac();
virtual void reset(uint64_t address = 0) override;
virtual uint8_t *get_regs_base_ptr() override;
/// deprecated
virtual void get_reg(short idx, std::vector<uint8_t> &value) override {}
virtual void set_reg(short idx, const std::vector<uint8_t> &value) override {}
/// deprecated
virtual bool get_flag(int flag) override { return false; }
virtual void set_flag(int, bool value) override{};
/// deprecated
virtual void update_flags(operations op, uint64_t opr1, uint64_t opr2) override{};
virtual 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 RV32IMAC_regs {
uint32_t X0;
uint32_t X1;
uint32_t X2;
uint32_t X3;
uint32_t X4;
uint32_t X5;
uint32_t X6;
uint32_t X7;
uint32_t X8;
uint32_t X9;
uint32_t X10;
uint32_t X11;
uint32_t X12;
uint32_t X13;
uint32_t X14;
uint32_t X15;
uint32_t X16;
uint32_t X17;
uint32_t X18;
uint32_t X19;
uint32_t X20;
uint32_t X21;
uint32_t X22;
uint32_t X23;
uint32_t X24;
uint32_t X25;
uint32_t X26;
uint32_t X27;
uint32_t X28;
uint32_t X29;
uint32_t X30;
uint32_t X31;
uint32_t PC;
uint32_t NEXT_PC;
uint32_t trap_state, pending_trap, machine_state;
uint64_t icount;
} reg;
};
}
}
#endif /* _RV32IMAC_H_ */