diff options
Diffstat (limited to 'src/arch/arm')
| -rw-r--r-- | src/arch/arm/insts/mem.cc | 16 | ||||
| -rw-r--r-- | src/arch/arm/insts/mem.hh | 16 | ||||
| -rw-r--r-- | src/arch/arm/isa/insts/insts.isa | 3 | ||||
| -rw-r--r-- | src/arch/arm/isa/insts/mem.isa | 36 | ||||
| -rw-r--r-- | src/arch/arm/isa/insts/swap.isa | 61 | ||||
| -rw-r--r-- | src/arch/arm/isa/templates/mem.isa | 120 |
6 files changed, 244 insertions, 8 deletions
diff --git a/src/arch/arm/insts/mem.cc b/src/arch/arm/insts/mem.cc index ea98771e0..6cbe08ac8 100644 --- a/src/arch/arm/insts/mem.cc +++ b/src/arch/arm/insts/mem.cc @@ -43,9 +43,25 @@ #include "arch/arm/insts/mem.hh" #include "base/loader/symtab.hh" +using namespace std; + namespace ArmISA { +string +Swap::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + printMnemonic(ss); + printReg(ss, dest); + ss << ", "; + printReg(ss, op1); + ss << ", ["; + printReg(ss, base); + ss << "]"; + return ss.str(); +} + void Memory::printInst(std::ostream &os, AddrMode addrMode) const { diff --git a/src/arch/arm/insts/mem.hh b/src/arch/arm/insts/mem.hh index e58005883..6ed99ba5b 100644 --- a/src/arch/arm/insts/mem.hh +++ b/src/arch/arm/insts/mem.hh @@ -47,6 +47,22 @@ namespace ArmISA { +class Swap : public PredOp +{ + protected: + IntRegIndex dest; + IntRegIndex op1; + IntRegIndex base; + + Swap(const char *mnem, ExtMachInst _machInst, OpClass __opClass, + IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _base) + : PredOp(mnem, _machInst, __opClass), + dest(_dest), op1(_op1), base(_base) + {} + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + class Memory : public PredOp { public: diff --git a/src/arch/arm/isa/insts/insts.isa b/src/arch/arm/isa/insts/insts.isa index 04dc867c7..82bace31b 100644 --- a/src/arch/arm/isa/insts/insts.isa +++ b/src/arch/arm/isa/insts/insts.isa @@ -52,6 +52,9 @@ //Stores of a single item ##include "str.isa" +//Swaps +##include "swap.isa" + //Load/store multiple ##include "macromem.isa" diff --git a/src/arch/arm/isa/insts/mem.isa b/src/arch/arm/isa/insts/mem.isa index 1bd70e54b..21687b225 100644 --- a/src/arch/arm/isa/insts/mem.isa +++ b/src/arch/arm/isa/insts/mem.isa @@ -38,12 +38,14 @@ // Authors: Gabe Black let {{ - def loadStoreBase(name, Name, imm, eaCode, accCode, memFlags, - instFlags, base = 'Memory', execTemplateBase = ''): + def loadStoreBaseWork(name, Name, imm, swp, codeBlobs, memFlags, + instFlags, base = 'Memory', execTemplateBase = ''): # Make sure flags are in lists (convert to lists if not). memFlags = makeList(memFlags) instFlags = makeList(instFlags) + eaCode = codeBlobs["ea_code"] + # This shouldn't be part of the eaCode, but until the exec templates # are converted over it's the easiest place to put it. eaCode += '\n unsigned memAccessFlags = ' @@ -52,17 +54,18 @@ let {{ else: eaCode += '0;' - iop = InstObjParams(name, Name, base, - {'ea_code': eaCode, - 'memacc_code': accCode, - 'predicate_test': predicateTest}, - instFlags) + codeBlobs["ea_code"] = eaCode + + iop = InstObjParams(name, Name, base, codeBlobs, instFlags) fullExecTemplate = eval(execTemplateBase + 'Execute') initiateAccTemplate = eval(execTemplateBase + 'InitiateAcc') completeAccTemplate = eval(execTemplateBase + 'CompleteAcc') - if imm: + if swp: + declareTemplate = SwapDeclare + constructTemplate = SwapConstructor + elif imm: declareTemplate = LoadStoreImmDeclare constructTemplate = LoadStoreImmConstructor else: @@ -76,6 +79,23 @@ let {{ + initiateAccTemplate.subst(iop) + completeAccTemplate.subst(iop)) + def loadStoreBase(name, Name, imm, eaCode, accCode, memFlags, + instFlags, base = 'Memory', execTemplateBase = ''): + codeBlobs = { "ea_code": eaCode, + "memacc_code": accCode, + "predicate_test": predicateTest } + return loadStoreBaseWork(name, Name, imm, False, codeBlobs, memFlags, + instFlags, base, execTemplateBase) + + def SwapBase(name, Name, eaCode, preAccCode, postAccCode, memFlags, + instFlags): + codeBlobs = { "ea_code": eaCode, + "preacc_code": preAccCode, + "postacc_code": postAccCode, + "predicate_test": predicateTest } + return loadStoreBaseWork(name, Name, False, True, codeBlobs, memFlags, + instFlags, 'Swap', 'Swap') + def memClassName(base, post, add, writeback, \ size=4, sign=False, user=False): Name = base diff --git a/src/arch/arm/isa/insts/swap.isa b/src/arch/arm/isa/insts/swap.isa new file mode 100644 index 000000000..6cbca6d6c --- /dev/null +++ b/src/arch/arm/isa/insts/swap.isa @@ -0,0 +1,61 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2010 ARM Limited +// All rights reserved +// +// The license below extends only to copyright in the software and shall +// not be construed as granting a license to any other intellectual +// property including but not limited to intellectual property relating +// to a hardware implementation of the functionality of the software +// licensed hereunder. You may use the software subject to the license +// terms below provided that you ensure that this notice is replicated +// unmodified and in its entirety in all distributions of the software, +// modified or unmodified, in source code or in binary form. +// +// 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 + +let {{ + + header_output = decoder_output = exec_output = "" + + (newHeader, + newDecoder, + newExec) = SwapBase("swp", "Swp", "EA = Base;", + "Mem = Op1;", "Dest = memData;", + ["Request::MEM_SWAP"], []) + header_output += newHeader + decoder_output += newDecoder + exec_output += newExec + + (newHeader, + newDecoder, + newExec) = SwapBase("swpb", "Swpb", "EA = Base;", + "Mem.ub = Op1.ub;", "Dest.ub = (uint8_t)memData;", + ["Request::MEM_SWAP"], []) + header_output += newHeader + decoder_output += newDecoder + exec_output += newExec +}}; diff --git a/src/arch/arm/isa/templates/mem.isa b/src/arch/arm/isa/templates/mem.isa index b424072bc..e01470666 100644 --- a/src/arch/arm/isa/templates/mem.isa +++ b/src/arch/arm/isa/templates/mem.isa @@ -41,6 +41,96 @@ // Authors: Stephen Hines +def template SwapExecute {{ + Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Addr EA; + Fault fault = NoFault; + + %(op_decl)s; + uint64_t memData = 0; + %(op_rd)s; + %(ea_code)s; + + if (%(predicate_test)s) + { + %(preacc_code)s; + + if (fault == NoFault) { + fault = xc->write((uint%(mem_acc_size)d_t&)Mem, + EA, memAccessFlags, &memData); + } + + if (fault == NoFault) { + %(postacc_code)s; + } + + if (fault == NoFault) { + %(op_wb)s; + } + } + + return fault; + } +}}; + +def template SwapInitiateAcc {{ + Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Addr EA; + Fault fault = NoFault; + + %(op_decl)s; + uint64_t memData = 0; + %(op_rd)s; + %(ea_code)s; + + if (%(predicate_test)s) + { + %(preacc_code)s; + + if (fault == NoFault) { + fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, + memAccessFlags, &memData); + } + + if (fault == NoFault) { + %(op_wb)s; + } + } + + return fault; + } +}}; + +def template SwapCompleteAcc {{ + Fault %(class_name)s::completeAcc(PacketPtr pkt, + %(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Fault fault = NoFault; + + %(op_decl)s; + %(op_rd)s; + + if (%(predicate_test)s) + { + // ARM instructions will not have a pkt if the predicate is false + uint64_t memData = pkt->get<typeof(Mem)>(); + + %(postacc_code)s; + + if (fault == NoFault) { + %(op_wb)s; + } + } + + return fault; + } +}}; + def template LoadExecute {{ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const @@ -204,6 +294,26 @@ def template StoreCompleteAcc {{ } }}; +def template SwapDeclare {{ + /** + * Static instruction class for "%(mnemonic)s". + */ + class %(class_name)s : public %(base_class)s + { + public: + + /// Constructor. + %(class_name)s(ExtMachInst machInst, + uint32_t _dest, uint32_t _op1, uint32_t _base); + + %(BasicExecDeclare)s + + %(InitiateAccDeclare)s + + %(CompleteAccDeclare)s + }; +}}; + def template LoadStoreImmDeclare {{ /** * Static instruction class for "%(mnemonic)s". @@ -254,6 +364,16 @@ def template CompleteAccDeclare {{ Fault completeAcc(PacketPtr, %(CPU_exec_context)s *, Trace::InstRecord *) const; }}; +def template SwapConstructor {{ + inline %(class_name)s::%(class_name)s(ExtMachInst machInst, + uint32_t _dest, uint32_t _op1, uint32_t _base) + : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s, + (IntRegIndex)_dest, (IntRegIndex)_op1, (IntRegIndex)_base) + { + %(constructor)s; + } +}}; + def template LoadStoreImmConstructor {{ inline %(class_name)s::%(class_name)s(ExtMachInst machInst, uint32_t _dest, uint32_t _base, bool _add, int32_t _imm) |