util.isa revision 3388
1// Copyright (c) 2006 The Regents of The University of Michigan 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer; 8// redistributions in binary form must reproduce the above copyright 9// notice, this list of conditions and the following disclaimer in the 10// documentation and/or other materials provided with the distribution; 11// neither the name of the copyright holders nor the names of its 12// contributors may be used to endorse or promote products derived from 13// this software without specific prior written permission. 14// 15// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26// 27// Authors: Ali Saidi 28// Gabe Black 29// Steve Reinhardt 30 31//////////////////////////////////////////////////////////////////// 32// 33// Mem utility templates and functions 34// 35 36//This template provides the execute functions for a load 37def template LoadExecute {{ 38 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 39 Trace::InstRecord *traceData) const 40 { 41 Fault fault = NoFault; 42 Addr EA; 43 %(op_decl)s; 44 %(op_rd)s; 45 %(priv_check)s; 46 %(ea_code)s; 47 DPRINTF(Sparc, "The address is 0x%x\n", EA); 48 fault = xc->read(EA, (uint%(mem_acc_size)s_t&)Mem, 0); 49 %(code)s; 50 if(fault == NoFault) 51 { 52 //Write the resulting state to the execution context 53 %(op_wb)s; 54 } 55 56 return fault; 57 } 58 59 Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s * xc, 60 Trace::InstRecord * traceData) const 61 { 62 Fault fault = NoFault; 63 Addr EA; 64 uint%(mem_acc_size)s_t Mem; 65 %(ea_decl)s; 66 %(ea_rd)s; 67 %(priv_check)s; 68 %(ea_code)s; 69 fault = xc->read(EA, (uint%(mem_acc_size)s_t&)Mem, 0); 70 return fault; 71 } 72 73 Fault %(class_name)s::completeAcc(PacketPtr pkt, %(CPU_exec_context)s * xc, 74 Trace::InstRecord * traceData) const 75 { 76 Fault fault = NoFault; 77 %(code_decl)s; 78 %(code_rd)s; 79 Mem = pkt->get<typeof(Mem)>(); 80 %(code)s; 81 if(fault == NoFault) 82 { 83 %(code_wb)s; 84 } 85 return fault; 86 } 87}}; 88 89//This template provides the execute functions for a store 90def template StoreExecute {{ 91 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 92 Trace::InstRecord *traceData) const 93 { 94 Fault fault = NoFault; 95 uint64_t write_result = 0; 96 Addr EA; 97 %(op_decl)s; 98 %(op_rd)s; 99 %(priv_check)s; 100 %(ea_code)s; 101 DPRINTF(Sparc, "The address is 0x%x\n", EA); 102 %(code)s; 103 104 if(fault == NoFault) 105 { 106 fault = xc->write((uint%(mem_acc_size)s_t)Mem, EA, 0, &write_result); 107 } 108 if(fault == NoFault) 109 { 110 //Write the resulting state to the execution context 111 %(op_wb)s; 112 } 113 114 return fault; 115 } 116 117 Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s * xc, 118 Trace::InstRecord * traceData) const 119 { 120 Fault fault = NoFault; 121 uint64_t write_result = 0; 122 Addr EA; 123 %(op_decl)s; 124 %(op_rd)s; 125 %(priv_check)s; 126 %(ea_code)s; 127 DPRINTF(Sparc, "The address is 0x%x\n", EA); 128 %(code)s; 129 if(fault == NoFault) 130 { 131 fault = xc->write((uint%(mem_acc_size)s_t)Mem, EA, 0, &write_result); 132 } 133 if(fault == NoFault) 134 { 135 //Write the resulting state to the execution context 136 %(op_wb)s; 137 } 138 return fault; 139 } 140 141 Fault %(class_name)s::completeAcc(PacketPtr, %(CPU_exec_context)s * xc, 142 Trace::InstRecord * traceData) const 143 { 144 return NoFault; 145 } 146}}; 147 148//This delcares the initiateAcc function in memory operations 149def template InitiateAccDeclare {{ 150 Fault initiateAcc(%(CPU_exec_context)s *, Trace::InstRecord *) const; 151}}; 152 153//This declares the completeAcc function in memory operations 154def template CompleteAccDeclare {{ 155 Fault completeAcc(PacketPtr, %(CPU_exec_context)s *, Trace::InstRecord *) const; 156}}; 157 158//This function properly generates the execute functions for one of the 159//templates above. This is needed because in one case, ea computation, 160//privelege checks and the actual code all occur in the same function, 161//and in the other they're distributed across two. Also note that for 162//execute functions, the name of the base class doesn't matter. 163let {{ 164 def doSplitExecute(code, eaRegCode, eaImmCode, execute, 165 priv, nameReg, nameImm, NameReg, NameImm, opt_flags): 166 codeIop = InstObjParams(nameReg, NameReg, '', code, opt_flags) 167 executeCode = '' 168 for (eaCode, name, Name) in ( 169 (eaRegCode, nameReg, NameReg), 170 (eaImmCode, nameImm, NameImm)): 171 eaIop = InstObjParams(name, Name, '', eaCode, 172 opt_flags, {"priv_check": priv}) 173 iop = InstObjParams(name, Name, '', code, opt_flags, 174 {"priv_check": priv, "ea_code" : eaCode}) 175 (iop.ea_decl, 176 iop.ea_rd, 177 iop.ea_wb) = (eaIop.op_decl, eaIop.op_rd, eaIop.op_wb) 178 (iop.code_decl, 179 iop.code_rd, 180 iop.code_wb) = (codeIop.op_decl, codeIop.op_rd, codeIop.op_wb) 181 executeCode += execute.subst(iop) 182 return executeCode 183}}; 184