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/*
* Copyright (c) 2009 The Regents of The University of Michigan
* Copyright (c) 2009 The University of Edinburgh
* Copyright (c) 2014 Sven Karlsson
* Copyright (c) 2016 RISC-V Foundation
* Copyright (c) 2016 The University of Virginia
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* 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;
* neither the name of the copyright holders 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
* OWNER 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.
*
* Authors: Gabe Black
* Timothy M. Jones
* Sven Karlsson
* Alec Roelke
*/
#ifndef __ARCH_RISCV_ISA_HH__
#define __ARCH_RISCV_ISA_HH__
#include <map>
#include <string>
#include "arch/riscv/registers.hh"
#include "arch/riscv/types.hh"
#include "base/bitfield.hh"
#include "base/logging.hh"
#include "cpu/reg_class.hh"
#include "sim/sim_object.hh"
struct RiscvISAParams;
class ThreadContext;
class Checkpoint;
class EventManager;
namespace RiscvISA
{
enum PrivilegeMode {
PRV_U = 0,
PRV_S = 1,
PRV_M = 3
};
class ISA : public SimObject
{
protected:
std::vector<RegVal> miscRegFile;
bool hpmCounterEnabled(int counter) const;
public:
typedef RiscvISAParams Params;
void clear();
RegVal readMiscRegNoEffect(int misc_reg) const;
RegVal readMiscReg(int misc_reg, ThreadContext *tc);
void setMiscRegNoEffect(int misc_reg, RegVal val);
void setMiscReg(int misc_reg, RegVal val, ThreadContext *tc);
RegId flattenRegId(const RegId ®Id) const { return regId; }
int flattenIntIndex(int reg) const { return reg; }
int flattenFloatIndex(int reg) const { return reg; }
int flattenVecIndex(int reg) const { return reg; }
int flattenVecElemIndex(int reg) const { return reg; }
int flattenVecPredIndex(int reg) const { return reg; }
int flattenCCIndex(int reg) const { return reg; }
int flattenMiscIndex(int reg) const { return reg; }
void startup(ThreadContext *tc) {}
/// Explicitly import the otherwise hidden startup
using SimObject::startup;
const Params *params() const;
ISA(Params *p);
};
} // namespace RiscvISA
#endif // __ARCH_RISCV_ISA_HH__
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