| // -*- mode:c++ -*- |
| |
| // Copyright (c) 2007 MIPS Technologies, Inc. |
| // 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: Korey Sewell |
| |
| //////////////////////////////////////////////////////////////////// |
| // |
| // MT instructions |
| // |
| |
| output header {{ |
| /** |
| * Base class for MIPS MT ASE operations. |
| */ |
| class MTOp : public MipsStaticInst |
| { |
| protected: |
| |
| /// Constructor |
| MTOp(const char *mnem, MachInst _machInst, OpClass __opClass) : |
| MipsStaticInst(mnem, _machInst, __opClass), user_mode(false) |
| { |
| } |
| |
| std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; |
| |
| bool user_mode; |
| }; |
| |
| class MTUserModeOp : public MTOp |
| { |
| protected: |
| |
| /// Constructor |
| MTUserModeOp(const char *mnem, MachInst _machInst, OpClass __opClass) : |
| MTOp(mnem, _machInst, __opClass) |
| { |
| user_mode = true; |
| } |
| |
| //std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; |
| }; |
| }}; |
| |
| output decoder {{ |
| std::string MTOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const |
| { |
| std::stringstream ss; |
| |
| if (strcmp(mnemonic,"mttc0") == 0 || strcmp(mnemonic,"mftc0") == 0) { |
| ccprintf(ss, "%-10s r%d, r%d, %d", mnemonic, RT, RD, SEL); |
| } else if (strcmp(mnemonic,"mftgpr") == 0) { |
| ccprintf(ss, "%-10s r%d, r%d", mnemonic, RD, RT); |
| } else { |
| ccprintf(ss, "%-10s r%d, r%d", mnemonic, RT, RD); |
| } |
| |
| return ss.str(); |
| } |
| }}; |
| |
| output exec {{ |
| void getThrRegExValues(%(CPU_exec_context)s *xc, unsigned &vpe_conf0, unsigned &tc_bind_mt, unsigned &tc_bind, unsigned &vpe_control, unsigned &mvp_conf0) |
| { |
| vpe_conf0 = xc->readMiscReg(VPEConf0); |
| tc_bind_mt = xc->readRegOtherThread(TCBind + Ctrl_Base_DepTag); |
| tc_bind = xc->readMiscReg(TCBind); |
| vpe_control = xc->readMiscReg(VPEControl); |
| mvp_conf0 = xc->readMiscReg(MVPConf0); |
| } |
| |
| void getMTExValues(%(CPU_exec_context)s *xc, unsigned &config3) |
| { |
| config3 = xc->readMiscReg(Config3); |
| } |
| }}; |
| |
| def template ThreadRegisterExecute {{ |
| Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| int64_t data; |
| %(op_decl)s; |
| %(op_rd)s; |
| |
| unsigned vpe_conf0, tc_bind_mt, tc_bind, vpe_control, mvp_conf0; |
| |
| getThrRegExValues(xc, vpe_conf0, tc_bind_mt, tc_bind, vpe_control, mvp_conf0); |
| |
| if (isCoprocessorEnabled(xc, 0)) { |
| if (bits(vpe_conf0, VPEC0_MVP) == 0 && |
| bits(tc_bind_mt, TCB_CUR_VPE_HI, TCB_CUR_VPE_LO) != |
| bits(tc_bind, TCB_CUR_VPE_HI, TCB_CUR_VPE_LO)) { |
| data = -1; |
| } else if (bits(vpe_control, VPEC_TARG_TC_HI, VPEC_TARG_TC_LO) > |
| bits(mvp_conf0, MVPC0_PTC_HI, MVPC0_PTC_LO)) { |
| data = -1; |
| } else { |
| int top_bit = 0; |
| int bottom_bit = 0; |
| |
| if (MT_H == 1) { |
| top_bit = 63; |
| bottom_bit = 32; |
| } else { |
| top_bit = 31; |
| bottom_bit = 0; |
| } |
| |
| %(code)s; |
| } |
| } else { |
| fault = new CoprocessorUnusableFault(0); |
| } |
| |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| |
| return fault; |
| } |
| }}; |
| |
| def template MTExecute{{ |
| Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| %(op_decl)s; |
| %(op_rd)s; |
| |
| unsigned config3; |
| |
| getMTExValues(xc, config3); |
| |
| if (isCoprocessorEnabled(xc, 0)) { |
| if (bits(config3, CFG3_MT) == 1) { |
| %(code)s; |
| } else { |
| fault = new ReservedInstructionFault(); |
| } |
| } else { |
| fault = new CoprocessorUnusableFault(0); |
| } |
| |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| return fault; |
| } |
| }}; |
| |
| // Primary format for integer operate instructions: |
| def format MT_Control(code, *opt_flags) {{ |
| inst_flags = ('IsNonSpeculative', ) |
| op_type = 'MTOp' |
| |
| for x in opt_flags: |
| if x == 'UserMode': |
| op_type = 'MTUserModeOp' |
| else: |
| inst_flags += (x, ) |
| |
| iop = InstObjParams(name, Name, op_type, code, inst_flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = BasicDecode.subst(iop) |
| exec_output = MTExecute.subst(iop) |
| }}; |
| |
| def format MT_MFTR(code, *flags) {{ |
| flags += ('IsNonSpeculative', ) |
| # code = 'std::cerr << curTick << \": T\" << xc->tcBase()->getThreadNum() << \": Executing MT INST: ' + name + '\" << endl;\n' + code |
| |
| code += 'if (MT_H == 1) {\n' |
| code += 'data = bits(data, top_bit, bottom_bit);\n' |
| code += '}\n' |
| code += 'Rd = data;\n' |
| |
| iop = InstObjParams(name, Name, 'MTOp', code, flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = BasicDecode.subst(iop) |
| exec_output = ThreadRegisterExecute.subst(iop) |
| }}; |
| |
| def format MT_MTTR(code, *flags) {{ |
| flags += ('IsNonSpeculative', ) |
| # code = 'std::cerr << curTick << \": T\" << xc->tcBase()->getThreadNum() << \": Executing MT INST: ' + name + '\" << endl;\n' + code |
| iop = InstObjParams(name, Name, 'MTOp', code, flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = BasicDecode.subst(iop) |
| exec_output = ThreadRegisterExecute.subst(iop) |
| }}; |
