diff options
Diffstat (limited to 'src/arch')
149 files changed, 10472 insertions, 2217 deletions
diff --git a/src/arch/alpha/faults.cc b/src/arch/alpha/faults.cc index e93e16711..ff6de8d03 100644 --- a/src/arch/alpha/faults.cc +++ b/src/arch/alpha/faults.cc @@ -144,7 +144,7 @@ DtbFault::invoke(ThreadContext *tc) // read, like the EV5). The EV6 approach is cleaner and seems to // work with EV5 PAL code, but not the other way around. if (!tc->misspeculating() && - reqFlags.noneSet(Request::VPTE|Request::NO_FAULT)) { + reqFlags.noneSet(Request::VPTE | Request::PREFETCH)) { // set VA register with faulting address tc->setMiscRegNoEffect(IPR_VA, vaddr); diff --git a/src/arch/alpha/isa.cc b/src/arch/alpha/isa.cc index eee391a0d..8b6da3649 100644 --- a/src/arch/alpha/isa.cc +++ b/src/arch/alpha/isa.cc @@ -36,7 +36,7 @@ namespace AlphaISA { void -ISA::serialize(std::ostream &os) +ISA::serialize(EventManager *em, std::ostream &os) { SERIALIZE_SCALAR(fpcr); SERIALIZE_SCALAR(uniq); @@ -46,7 +46,7 @@ ISA::serialize(std::ostream &os) } void -ISA::unserialize(Checkpoint *cp, const std::string §ion) +ISA::unserialize(EventManager *em, Checkpoint *cp, const std::string §ion) { UNSERIALIZE_SCALAR(fpcr); UNSERIALIZE_SCALAR(uniq); diff --git a/src/arch/alpha/isa.hh b/src/arch/alpha/isa.hh index 622d1da4c..574b50841 100644 --- a/src/arch/alpha/isa.hh +++ b/src/arch/alpha/isa.hh @@ -83,8 +83,9 @@ namespace AlphaISA intr_flag = 0; } - void serialize(std::ostream &os); - void unserialize(Checkpoint *cp, const std::string §ion); + void serialize(EventManager *em, std::ostream &os); + void unserialize(EventManager *em, Checkpoint *cp, + const std::string §ion); void reset(std::string core_name, ThreadID num_threads, unsigned num_vpes, BaseCPU *_cpu) diff --git a/src/arch/alpha/isa/decoder.isa b/src/arch/alpha/isa/decoder.isa index cb43fcb74..52e124ad5 100644 --- a/src/arch/alpha/isa/decoder.isa +++ b/src/arch/alpha/isa/decoder.isa @@ -627,7 +627,7 @@ decode OPCODE default Unknown::unknown() { format MiscPrefetch { 0xf800: wh64({{ EA = Rb & ~ULL(63); }}, {{ xc->writeHint(EA, 64, memAccessFlags); }}, - mem_flags = NO_FAULT, + mem_flags = PREFETCH, inst_flags = [IsMemRef, IsDataPrefetch, IsStore, MemWriteOp]); } diff --git a/src/arch/alpha/isa/mem.isa b/src/arch/alpha/isa/mem.isa index fedfbf55d..b1703221f 100644 --- a/src/arch/alpha/isa/mem.isa +++ b/src/arch/alpha/isa/mem.isa @@ -548,7 +548,7 @@ def format LoadOrPrefetch(memacc_code, ea_code = {{ EA = Rb + disp; }}, pf_flags = makeList(pf_flags) inst_flags = makeList(inst_flags) - pf_mem_flags = mem_flags + pf_flags + ['NO_FAULT'] + pf_mem_flags = mem_flags + pf_flags + ['PREFETCH'] pf_inst_flags = inst_flags + ['IsMemRef', 'IsLoad', 'IsDataPrefetch', 'MemReadOp'] diff --git a/src/arch/alpha/linux/linux.hh b/src/arch/alpha/linux/linux.hh index c622c5ef1..c728ce1fb 100644 --- a/src/arch/alpha/linux/linux.hh +++ b/src/arch/alpha/linux/linux.hh @@ -105,6 +105,7 @@ class AlphaLinux : public Linux static const unsigned TIOCISATTY_ = 0x2000745e; static const unsigned TIOCGETS_ = 0x402c7413; static const unsigned TIOCGETA_ = 0x40127417; + static const unsigned TCSETAW_ = 0x80147419; // 2.6.15 kernel //@} /// For table(). @@ -125,6 +126,21 @@ class AlphaLinux : public Linux TGT_RLIMIT_MEMLOCK = 9, TGT_RLIMIT_LOCKS = 10 }; + + typedef struct { + int64_t uptime; /* Seconds since boot */ + uint64_t loads[3]; /* 1, 5, and 15 minute load averages */ + uint64_t totalram; /* Total usable main memory size */ + uint64_t freeram; /* Available memory size */ + uint64_t sharedram; /* Amount of shared memory */ + uint64_t bufferram; /* Memory used by buffers */ + uint64_t totalswap; /* Total swap space size */ + uint64_t freeswap; /* swap space still available */ + uint16_t procs; /* Number of current processes */ + uint64_t totalhigh; /* Total high memory size */ + uint64_t freehigh; /* Available high memory size */ + uint64_t mem_unit; /* Memory unit size in bytes */ + } tgt_sysinfo; }; #endif // __ALPHA_ALPHA_LINUX_LINUX_HH__ diff --git a/src/arch/alpha/linux/process.cc b/src/arch/alpha/linux/process.cc index 9886c7ea7..a653d7845 100644 --- a/src/arch/alpha/linux/process.cc +++ b/src/arch/alpha/linux/process.cc @@ -48,7 +48,8 @@ static SyscallReturn unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, 0)); + int index = 0; + TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index)); strcpy(name->sysname, "Linux"); strcpy(name->nodename, "m5.eecs.umich.edu"); @@ -67,13 +68,15 @@ static SyscallReturn osf_getsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - unsigned op = process->getSyscallArg(tc, 0); + int index = 0; + unsigned op = process->getSyscallArg(tc, index); + Addr bufPtr = process->getSyscallArg(tc, index); // unsigned nbytes = process->getSyscallArg(tc, 2); switch (op) { case 45: { // GSI_IEEE_FP_CONTROL - TypedBufferArg<uint64_t> fpcr(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint64_t> fpcr(bufPtr); // I don't think this exactly matches the HW FPCR *fpcr = 0; fpcr.copyOut(tc->getMemPort()); @@ -94,13 +97,15 @@ static SyscallReturn osf_setsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - unsigned op = process->getSyscallArg(tc, 0); + int index = 0; + unsigned op = process->getSyscallArg(tc, index); + Addr bufPtr = process->getSyscallArg(tc, index); // unsigned nbytes = process->getSyscallArg(tc, 2); switch (op) { case 14: { // SSI_IEEE_FP_CONTROL - TypedBufferArg<uint64_t> fpcr(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint64_t> fpcr(bufPtr); // I don't think this exactly matches the HW FPCR fpcr.copyIn(tc->getMemPort()); DPRINTFR(SyscallVerbose, "osf_setsysinfo(SSI_IEEE_FP_CONTROL): " @@ -440,7 +445,7 @@ SyscallDesc AlphaLinuxProcess::syscallDescs[] = { /* 315 */ SyscallDesc("munlock", unimplementedFunc), /* 316 */ SyscallDesc("mlockall", unimplementedFunc), /* 317 */ SyscallDesc("munlockall", unimplementedFunc), - /* 318 */ SyscallDesc("sysinfo", unimplementedFunc), + /* 318 */ SyscallDesc("sysinfo", sysinfoFunc<AlphaLinux>), /* 319 */ SyscallDesc("_sysctl", unimplementedFunc), /* 320 */ SyscallDesc("was sys_idle", unimplementedFunc), /* 321 */ SyscallDesc("oldumount", unimplementedFunc), diff --git a/src/arch/alpha/process.cc b/src/arch/alpha/process.cc index 6aad45da8..9d75d5fa1 100644 --- a/src/arch/alpha/process.cc +++ b/src/arch/alpha/process.cc @@ -193,10 +193,10 @@ AlphaLiveProcess::startup() } AlphaISA::IntReg -AlphaLiveProcess::getSyscallArg(ThreadContext *tc, int i) +AlphaLiveProcess::getSyscallArg(ThreadContext *tc, int &i) { assert(i < 6); - return tc->readIntReg(FirstArgumentReg + i); + return tc->readIntReg(FirstArgumentReg + i++); } void diff --git a/src/arch/alpha/process.hh b/src/arch/alpha/process.hh index 6d083c5ac..36b25a48e 100644 --- a/src/arch/alpha/process.hh +++ b/src/arch/alpha/process.hh @@ -44,7 +44,7 @@ class AlphaLiveProcess : public LiveProcess void argsInit(int intSize, int pageSize); public: - AlphaISA::IntReg getSyscallArg(ThreadContext *tc, int i); + AlphaISA::IntReg getSyscallArg(ThreadContext *tc, int &i); void setSyscallArg(ThreadContext *tc, int i, AlphaISA::IntReg val); void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); }; diff --git a/src/arch/alpha/tru64/process.cc b/src/arch/alpha/tru64/process.cc index 8fa3cdeda..b039fbe19 100644 --- a/src/arch/alpha/tru64/process.cc +++ b/src/arch/alpha/tru64/process.cc @@ -45,7 +45,8 @@ static SyscallReturn unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<AlphaTru64::utsname> name(process->getSyscallArg(tc, 0)); + int index = 0; + TypedBufferArg<AlphaTru64::utsname> name(process->getSyscallArg(tc, index)); strcpy(name->sysname, "OSF1"); strcpy(name->nodename, "m5.eecs.umich.edu"); @@ -62,35 +63,36 @@ static SyscallReturn getsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - unsigned op = process->getSyscallArg(tc, 0); - unsigned nbytes = process->getSyscallArg(tc, 2); + int index = 0; + unsigned op = process->getSyscallArg(tc, index); + Addr bufPtr = process->getSyscallArg(tc, index); + unsigned nbytes = process->getSyscallArg(tc, index); switch (op) { case AlphaTru64::GSI_MAX_CPU: { - TypedBufferArg<uint32_t> max_cpu(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint32_t> max_cpu(bufPtr); *max_cpu = htog((uint32_t)process->numCpus()); max_cpu.copyOut(tc->getMemPort()); return 1; } case AlphaTru64::GSI_CPUS_IN_BOX: { - TypedBufferArg<uint32_t> cpus_in_box(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint32_t> cpus_in_box(bufPtr); *cpus_in_box = htog((uint32_t)process->numCpus()); cpus_in_box.copyOut(tc->getMemPort()); return 1; } case AlphaTru64::GSI_PHYSMEM: { - TypedBufferArg<uint64_t> physmem(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint64_t> physmem(bufPtr); *physmem = htog((uint64_t)1024 * 1024); // physical memory in KB physmem.copyOut(tc->getMemPort()); return 1; } case AlphaTru64::GSI_CPU_INFO: { - TypedBufferArg<AlphaTru64::cpu_info> - infop(process->getSyscallArg(tc, 1)); + TypedBufferArg<AlphaTru64::cpu_info> infop(bufPtr); infop->current_cpu = htog(0); infop->cpus_in_box = htog(process->numCpus()); @@ -107,14 +109,14 @@ getsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, } case AlphaTru64::GSI_PROC_TYPE: { - TypedBufferArg<uint64_t> proc_type(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint64_t> proc_type(bufPtr); *proc_type = htog((uint64_t)11); proc_type.copyOut(tc->getMemPort()); return 1; } case AlphaTru64::GSI_PLATFORM_NAME: { - BufferArg bufArg(process->getSyscallArg(tc, 1), nbytes); + BufferArg bufArg(bufPtr, nbytes); strncpy((char *)bufArg.bufferPtr(), "COMPAQ Professional Workstation XP1000", nbytes); @@ -123,7 +125,7 @@ getsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, } case AlphaTru64::GSI_CLK_TCK: { - TypedBufferArg<uint64_t> clk_hz(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint64_t> clk_hz(bufPtr); *clk_hz = htog((uint64_t)1024); clk_hz.copyOut(tc->getMemPort()); return 1; @@ -142,12 +144,13 @@ static SyscallReturn setsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - unsigned op = process->getSyscallArg(tc, 0); + int index = 0; + unsigned op = process->getSyscallArg(tc, index); switch (op) { case AlphaTru64::SSI_IEEE_FP_CONTROL: warn("setsysinfo: ignoring ieee_set_fp_control() arg 0x%x\n", - process->getSyscallArg(tc, 1)); + process->getSyscallArg(tc, index)); break; default: @@ -165,17 +168,19 @@ tableFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { using namespace std; - int id = process->getSyscallArg(tc, 0); // table ID - int index = process->getSyscallArg(tc, 1); // index into table + int argIndex = 0; + int id = process->getSyscallArg(tc, argIndex); // table ID + int index = process->getSyscallArg(tc, argIndex); // index into table + Addr bufPtr = process->getSyscallArg(tc, argIndex); // arg 2 is buffer pointer; type depends on table ID - int nel = process->getSyscallArg(tc, 3); // number of elements - int lel = process->getSyscallArg(tc, 4); // expected element size + int nel = process->getSyscallArg(tc, argIndex); // number of elements + int lel = process->getSyscallArg(tc, argIndex); // expected element size switch (id) { case AlphaTru64::TBL_SYSINFO: { if (index != 0 || nel != 1 || lel != sizeof(Tru64::tbl_sysinfo)) return -EINVAL; - TypedBufferArg<Tru64::tbl_sysinfo> elp(process->getSyscallArg(tc, 2)); + TypedBufferArg<Tru64::tbl_sysinfo> elp(bufPtr); const int clk_hz = one_million; elp->si_user = htog(curTick / (Clock::Frequency / clk_hz)); diff --git a/src/arch/alpha/tru64/tru64.hh b/src/arch/alpha/tru64/tru64.hh index 4ba35fc50..0ee12973c 100644 --- a/src/arch/alpha/tru64/tru64.hh +++ b/src/arch/alpha/tru64/tru64.hh @@ -99,6 +99,7 @@ class AlphaTru64 : public Tru64 static const unsigned TIOCISATTY_ = 0x2000745e; static const unsigned TIOCGETS_ = 0x402c7413; static const unsigned TIOCGETA_ = 0x40127417; + static const unsigned TCSETAW_ = 0x80147419; //@} //@{ diff --git a/src/arch/arm/ArmInterrupts.py b/src/arch/arm/ArmInterrupts.py new file mode 100644 index 000000000..f21d49e95 --- /dev/null +++ b/src/arch/arm/ArmInterrupts.py @@ -0,0 +1,33 @@ +# Copyright (c) 2009 ARM Limited +# 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: Ali Saidi + +from m5.SimObject import SimObject + +class ArmInterrupts(SimObject): + type = 'ArmInterrupts' + cxx_class = 'ArmISA::Interrupts' diff --git a/src/arch/arm/ArmSystem.py b/src/arch/arm/ArmSystem.py new file mode 100644 index 000000000..872776c69 --- /dev/null +++ b/src/arch/arm/ArmSystem.py @@ -0,0 +1,35 @@ +# Copyright (c) 2009 ARM Limited +# 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: Ali Saidi + +from m5.params import * + +from System import System + +class ArmSystem(System): + type = 'ArmSystem' + diff --git a/src/arch/arm/SConscript b/src/arch/arm/SConscript index 55ecabdc3..92a4193f1 100644 --- a/src/arch/arm/SConscript +++ b/src/arch/arm/SConscript @@ -1,6 +1,7 @@ # -*- mode:python -*- # Copyright (c) 2007-2008 The Florida State University +# Copyright (c) 2009 ARM Limited # All rights reserved. # # Redistribution and use in source and binary forms, with or without @@ -27,6 +28,7 @@ # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # Authors: Stephen Hines +# Ali Saidi Import('*') @@ -43,15 +45,20 @@ if env['TARGET_ISA'] == 'arm': Source('pagetable.cc') Source('tlb.cc') Source('vtophys.cc') + Source('utility.cc') SimObject('ArmNativeTrace.py') SimObject('ArmTLB.py') TraceFlag('Arm') - + TraceFlag('Faults', "Trace Exceptions, interrupts, svc/swi") if env['FULL_SYSTEM']: - #Insert Full-System Files Here - pass + Source('interrupts.cc') + Source('stacktrace.cc') + Source('system.cc') + + SimObject('ArmInterrupts.py') + SimObject('ArmSystem.py') else: Source('process.cc') Source('linux/linux.cc') diff --git a/src/arch/arm/faults.cc b/src/arch/arm/faults.cc index 3d882c97f..b7dd2d503 100644 --- a/src/arch/arm/faults.cc +++ b/src/arch/arm/faults.cc @@ -26,488 +26,114 @@ * (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 - * Stephen Hines + * Authors: Ali Saidi + * Gabe Black */ #include "arch/arm/faults.hh" #include "cpu/thread_context.hh" #include "cpu/base.hh" #include "base/trace.hh" -#if !FULL_SYSTEM -#include "sim/process.hh" -#include "mem/page_table.hh" -#endif namespace ArmISA { -FaultName MachineCheckFault::_name = "Machine Check"; -FaultVect MachineCheckFault::_vect = 0x0401; -FaultStat MachineCheckFault::_count; +template<> ArmFaultBase::FaultVals ArmFault<Reset>::vals = + {"reset", 0x00, MODE_SVC, 0, 0, true, true}; -FaultName AlignmentFault::_name = "Alignment"; -FaultVect AlignmentFault::_vect = 0x0301; -FaultStat AlignmentFault::_count; +template<> ArmFaultBase::FaultVals ArmFault<UndefinedInstruction>::vals = + {"Undefined Instruction", 0x04, MODE_UNDEFINED, 4 ,2, false, false} ; -FaultName ResetFault::_name = "Reset Fault"; -#if FULL_SYSTEM -FaultVect ResetFault::_vect = 0xBFC00000; -#else -FaultVect ResetFault::_vect = 0x001; -#endif -FaultStat ResetFault::_count; +template<> ArmFaultBase::FaultVals ArmFault<SupervisorCall>::vals = + {"Supervisor Call", 0x08, MODE_SVC, 4, 2, false, false}; -FaultName AddressErrorFault::_name = "Address Error"; -FaultVect AddressErrorFault::_vect = 0x0180; -FaultStat AddressErrorFault::_count; +template<> ArmFaultBase::FaultVals ArmFault<PrefetchAbort>::vals = + {"Prefetch Abort", 0x0C, MODE_ABORT, 4, 4, true, false}; -FaultName StoreAddressErrorFault::_name = "Store Address Error"; -FaultVect StoreAddressErrorFault::_vect = 0x0180; -FaultStat StoreAddressErrorFault::_count; +template<> ArmFaultBase::FaultVals ArmFault<DataAbort>::vals = + {"Data Abort", 0x10, MODE_ABORT, 8, 8, true, false}; +template<> ArmFaultBase::FaultVals ArmFault<Interrupt>::vals = + {"IRQ", 0x18, MODE_IRQ, 4, 4, true, false}; -FaultName SystemCallFault::_name = "Syscall"; -FaultVect SystemCallFault::_vect = 0x0180; -FaultStat SystemCallFault::_count; +template<> ArmFaultBase::FaultVals ArmFault<FastInterrupt>::vals = + {"FIQ", 0x1C, MODE_FIQ, 4, 4, true, true}; -FaultName CoprocessorUnusableFault::_name = "Coprocessor Unusable Fault"; -FaultVect CoprocessorUnusableFault::_vect = 0x180; -FaultStat CoprocessorUnusableFault::_count; - -FaultName ReservedInstructionFault::_name = "Reserved Instruction Fault"; -FaultVect ReservedInstructionFault::_vect = 0x0180; -FaultStat ReservedInstructionFault::_count; - -FaultName ThreadFault::_name = "Thread Fault"; -FaultVect ThreadFault::_vect = 0x00F1; -FaultStat ThreadFault::_count; - - -FaultName ArithmeticFault::_name = "Arithmetic Overflow Exception"; -FaultVect ArithmeticFault::_vect = 0x180; -FaultStat ArithmeticFault::_count; - -FaultName UnimplementedOpcodeFault::_name = "opdec"; -FaultVect UnimplementedOpcodeFault::_vect = 0x0481; -FaultStat UnimplementedOpcodeFault::_count; - -FaultName InterruptFault::_name = "interrupt"; -FaultVect InterruptFault::_vect = 0x0180; -FaultStat InterruptFault::_count; - -FaultName TrapFault::_name = "Trap"; -FaultVect TrapFault::_vect = 0x0180; -FaultStat TrapFault::_count; - -FaultName BreakpointFault::_name = "Breakpoint"; -FaultVect BreakpointFault::_vect = 0x0180; -FaultStat BreakpointFault::_count; - - -FaultName ItbInvalidFault::_name = "Invalid TLB Entry Exception (I-Fetch/LW)"; -FaultVect ItbInvalidFault::_vect = 0x0180; -FaultStat ItbInvalidFault::_count; - -FaultName ItbPageFault::_name = "itbmiss"; -FaultVect ItbPageFault::_vect = 0x0181; -FaultStat ItbPageFault::_count; - -FaultName ItbMissFault::_name = "itbmiss"; -FaultVect ItbMissFault::_vect = 0x0181; -FaultStat ItbMissFault::_count; - -FaultName ItbAcvFault::_name = "iaccvio"; -FaultVect ItbAcvFault::_vect = 0x0081; -FaultStat ItbAcvFault::_count; - -FaultName ItbRefillFault::_name = "TLB Refill Exception (I-Fetch/LW)"; -FaultVect ItbRefillFault::_vect = 0x0180; -FaultStat ItbRefillFault::_count; - -FaultName NDtbMissFault::_name = "dtb_miss_single"; -FaultVect NDtbMissFault::_vect = 0x0201; -FaultStat NDtbMissFault::_count; - -FaultName PDtbMissFault::_name = "dtb_miss_double"; -FaultVect PDtbMissFault::_vect = 0x0281; -FaultStat PDtbMissFault::_count; - -FaultName DtbPageFault::_name = "dfault"; -FaultVect DtbPageFault::_vect = 0x0381; -FaultStat DtbPageFault::_count; - -FaultName DtbAcvFault::_name = "dfault"; -FaultVect DtbAcvFault::_vect = 0x0381; -FaultStat DtbAcvFault::_count; - -FaultName DtbInvalidFault::_name = "Invalid TLB Entry Exception (Store)"; -FaultVect DtbInvalidFault::_vect = 0x0180; -FaultStat DtbInvalidFault::_count; - -FaultName DtbRefillFault::_name = "TLB Refill Exception (Store)"; -FaultVect DtbRefillFault::_vect = 0x0180; -FaultStat DtbRefillFault::_count; - -FaultName TLBModifiedFault::_name = "TLB Modified Exception"; -FaultVect TLBModifiedFault::_vect = 0x0180; -FaultStat TLBModifiedFault::_count; - -FaultName FloatEnableFault::_name = "float_enable_fault"; -FaultVect FloatEnableFault::_vect = 0x0581; -FaultStat FloatEnableFault::_count; - -FaultName IntegerOverflowFault::_name = "Integer Overflow Fault"; -FaultVect IntegerOverflowFault::_vect = 0x0501; -FaultStat IntegerOverflowFault::_count; - -FaultName DspStateDisabledFault::_name = "DSP Disabled Fault"; -FaultVect DspStateDisabledFault::_vect = 0x001a; -FaultStat DspStateDisabledFault::_count; - -#if FULL_SYSTEM -void ArmFault::setHandlerPC(Addr HandlerBase, ThreadContext *tc) -{ - tc->setPC(HandlerBase); - tc->setNextPC(HandlerBase+sizeof(MachInst)); - tc->setNextNPC(HandlerBase+2*sizeof(MachInst)); -} - -void ArmFault::setExceptionState(ThreadContext *tc,uint8_t ExcCode) -{ - // modify SRS Ctl - Save CSS, put ESS into CSS - MiscReg stat = tc->readMiscReg(ArmISA::Status); - if(bits(stat,Status_EXL) != 1 && bits(stat,Status_BEV) != 1) - { - // SRS Ctl is modified only if Status_EXL and Status_BEV are not set - MiscReg srs = tc->readMiscReg(ArmISA::SRSCtl); - uint8_t CSS,ESS; - CSS = bits(srs,SRSCtl_CSS_HI,SRSCtl_CSS_LO); - ESS = bits(srs,SRSCtl_ESS_HI,SRSCtl_ESS_LO); - // Move CSS to PSS - replaceBits(srs,SRSCtl_PSS_HI,SRSCtl_PSS_LO,CSS); - // Move ESS to CSS - replaceBits(srs,SRSCtl_CSS_HI,SRSCtl_CSS_LO,ESS); - tc->setMiscRegNoEffect(ArmISA::SRSCtl,srs); - //tc->setShadowSet(ESS); - } - - // set EXL bit (don't care if it is already set!) - replaceBits(stat,Status_EXL_HI,Status_EXL_LO,1); - tc->setMiscRegNoEffect(ArmISA::Status,stat); - - // write EPC - // warn("Set EPC to %x\n",tc->readPC()); - // CHECK ME or FIXME or FIX ME or POSSIBLE HACK - // Check to see if the exception occurred in the branch delay slot - DPRINTF(Arm,"PC: %x, NextPC: %x, NNPC: %x\n",tc->readPC(),tc->readNextPC(),tc->readNextNPC()); - int C_BD=0; - if(tc->readPC() + sizeof(MachInst) != tc->readNextPC()){ - tc->setMiscRegNoEffect(ArmISA::EPC,tc->readPC()-sizeof(MachInst)); - // In the branch delay slot? set CAUSE_31 - C_BD = 1; - } else { - tc->setMiscRegNoEffect(ArmISA::EPC,tc->readPC()); - // In the branch delay slot? reset CAUSE_31 - C_BD = 0; - } - - // Set Cause_EXCCODE field - MiscReg cause = tc->readMiscReg(ArmISA::Cause); - replaceBits(cause,Cause_EXCCODE_HI,Cause_EXCCODE_LO,ExcCode); - replaceBits(cause,Cause_BD_HI,Cause_BD_LO,C_BD); - replaceBits(cause,Cause_CE_HI,Cause_CE_LO,0); - tc->setMiscRegNoEffect(ArmISA::Cause,cause); - -} - -void ArithmeticFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - setExceptionState(tc,0xC); - - // Set new PC - Addr HandlerBase; - MiscReg stat = tc->readMiscReg(ArmISA::Status); - // Here, the handler is dependent on BEV, which is not modified by setExceptionState() - if(bits(stat,Status_BEV)==0){ // See MIPS ARM Vol 3, Revision 2, Page 38 - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); - }else{ - HandlerBase = 0xBFC00200; - } - setHandlerPC(HandlerBase,tc); - // warn("Exception Handler At: %x \n",HandlerBase); -} - -void StoreAddressErrorFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - setExceptionState(tc,0x5); - tc->setMiscRegNoEffect(ArmISA::BadVAddr,BadVAddr); - - // Set new PC - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); - // warn("Exception Handler At: %x \n",HandlerBase); - // warn("Exception Handler At: %x , EPC set to %x\n",HandlerBase,tc->readMiscReg(ArmISA::EPC)); - -} - -void TrapFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - // warn("%s encountered.\n", name()); - setExceptionState(tc,0xD); - - // Set new PC - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); - // warn("Exception Handler At: %x \n",HandlerBase); - // warn("Exception Handler At: %x , EPC set to %x\n",HandlerBase,tc->readMiscReg(ArmISA::EPC)); -} - -void BreakpointFault::invoke(ThreadContext *tc) -{ - setExceptionState(tc,0x9); - - // Set new PC - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); - // warn("Exception Handler At: %x \n",HandlerBase); - // warn("Exception Handler At: %x , EPC set to %x\n",HandlerBase,tc->readMiscReg(ArmISA::EPC)); - -} - -void DtbInvalidFault::invoke(ThreadContext *tc) +Addr +ArmFaultBase::getVector(ThreadContext *tc) { - DPRINTF(Arm,"%s encountered.\n", name()); - // warn("%s encountered.\n", name()); - tc->setMiscRegNoEffect(ArmISA::BadVAddr,BadVAddr); - MiscReg eh = tc->readMiscReg(ArmISA::EntryHi); - replaceBits(eh,EntryHi_ASID_HI,EntryHi_ASID_LO,EntryHi_Asid); - replaceBits(eh,EntryHi_VPN2_HI,EntryHi_VPN2_LO,EntryHi_VPN2); - replaceBits(eh,EntryHi_VPN2X_HI,EntryHi_VPN2X_LO,EntryHi_VPN2X); - tc->setMiscRegNoEffect(ArmISA::EntryHi,eh); - MiscReg ctxt = tc->readMiscReg(ArmISA::Context); - replaceBits(ctxt,Context_BadVPN2_HI,Context_BadVPN2_LO,Context_BadVPN2); - tc->setMiscRegNoEffect(ArmISA::Context,ctxt); - setExceptionState(tc,0x3); + // ARM ARM B1-3 + SCTLR sctlr = tc->readMiscReg(MISCREG_SCTLR); + + // panic if SCTLR.VE because I have no idea what to do with vectored + // interrupts + assert(!sctlr.ve); + + if (!sctlr.v) + return offset(); + return offset() + HighVecs; - // Set new PC - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); - // warn("Exception Handler At: %x , EPC set to %x\n",HandlerBase,tc->readMiscReg(ArmISA::EPC)); } -void AddressErrorFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - setExceptionState(tc,0x4); - tc->setMiscRegNoEffect(ArmISA::BadVAddr,BadVAddr); - - // Set new PC - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); -} - -void ItbInvalidFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - setExceptionState(tc,0x2); - tc->setMiscRegNoEffect(ArmISA::BadVAddr,BadVAddr); - MiscReg eh = tc->readMiscReg(ArmISA::EntryHi); - replaceBits(eh,EntryHi_ASID_HI,EntryHi_ASID_LO,EntryHi_Asid); - replaceBits(eh,EntryHi_VPN2_HI,EntryHi_VPN2_LO,EntryHi_VPN2); - replaceBits(eh,EntryHi_VPN2X_HI,EntryHi_VPN2X_LO,EntryHi_VPN2X); - tc->setMiscRegNoEffect(ArmISA::EntryHi,eh); - MiscReg ctxt = tc->readMiscReg(ArmISA::Context); - replaceBits(ctxt,Context_BadVPN2_HI,Context_BadVPN2_LO,Context_BadVPN2); - tc->setMiscRegNoEffect(ArmISA::Context,ctxt); - - - // Set new PC - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); - DPRINTF(Arm,"Exception Handler At: %x , EPC set to %x\n",HandlerBase,tc->readMiscReg(ArmISA::EPC)); -} - -void ItbRefillFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered (%x).\n", name(),BadVAddr); - Addr HandlerBase; - tc->setMiscRegNoEffect(ArmISA::BadVAddr,BadVAddr); - MiscReg eh = tc->readMiscReg(ArmISA::EntryHi); - replaceBits(eh,EntryHi_ASID_HI,EntryHi_ASID_LO,EntryHi_Asid); - replaceBits(eh,EntryHi_VPN2_HI,EntryHi_VPN2_LO,EntryHi_VPN2); - replaceBits(eh,EntryHi_VPN2X_HI,EntryHi_VPN2X_LO,EntryHi_VPN2X); - tc->setMiscRegNoEffect(ArmISA::EntryHi,eh); - MiscReg ctxt = tc->readMiscReg(ArmISA::Context); - replaceBits(ctxt,Context_BadVPN2_HI,Context_BadVPN2_LO,Context_BadVPN2); - tc->setMiscRegNoEffect(ArmISA::Context,ctxt); - - MiscReg stat = tc->readMiscReg(ArmISA::Status); - // Since handler depends on EXL bit, must check EXL bit before setting it!! - if(bits(stat,Status_EXL)==1){ // See MIPS ARM Vol 3, Revision 2, Page 38 - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - }else{ - HandlerBase = tc->readMiscReg(ArmISA::EBase); // Offset 0x000 - } - - setExceptionState(tc,0x2); - setHandlerPC(HandlerBase,tc); -} - -void DtbRefillFault::invoke(ThreadContext *tc) -{ - // Set new PC - DPRINTF(Arm,"%s encountered.\n", name()); - Addr HandlerBase; - tc->setMiscRegNoEffect(ArmISA::BadVAddr,BadVAddr); - MiscReg eh = tc->readMiscReg(ArmISA::EntryHi); - replaceBits(eh,EntryHi_ASID_HI,EntryHi_ASID_LO,EntryHi_Asid); - replaceBits(eh,EntryHi_VPN2_HI,EntryHi_VPN2_LO,EntryHi_VPN2); - replaceBits(eh,EntryHi_VPN2X_HI,EntryHi_VPN2X_LO,EntryHi_VPN2X); - tc->setMiscRegNoEffect(ArmISA::EntryHi,eh); - MiscReg ctxt = tc->readMiscReg(ArmISA::Context); - replaceBits(ctxt,Context_BadVPN2_HI,Context_BadVPN2_LO,Context_BadVPN2); - tc->setMiscRegNoEffect(ArmISA::Context,ctxt); - - MiscReg stat = tc->readMiscReg(ArmISA::Status); - // Since handler depends on EXL bit, must check EXL bit before setting it!! - if(bits(stat,Status_EXL)==1){ // See MIPS ARM Vol 3, Revision 2, Page 38 - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - }else{ - HandlerBase = tc->readMiscReg(ArmISA::EBase); // Offset 0x000 - } - - - setExceptionState(tc,0x3); - - setHandlerPC(HandlerBase,tc); -} - -void TLBModifiedFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - tc->setMiscRegNoEffect(ArmISA::BadVAddr,BadVAddr); - MiscReg eh = tc->readMiscReg(ArmISA::EntryHi); - replaceBits(eh,EntryHi_ASID_HI,EntryHi_ASID_LO,EntryHi_Asid); - replaceBits(eh,EntryHi_VPN2_HI,EntryHi_VPN2_LO,EntryHi_VPN2); - replaceBits(eh,EntryHi_VPN2X_HI,EntryHi_VPN2X_LO,EntryHi_VPN2X); - tc->setMiscRegNoEffect(ArmISA::EntryHi,eh); - MiscReg ctxt = tc->readMiscReg(ArmISA::Context); - replaceBits(ctxt,Context_BadVPN2_HI,Context_BadVPN2_LO,Context_BadVPN2); - tc->setMiscRegNoEffect(ArmISA::Context,ctxt); - - // Set new PC - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setExceptionState(tc,0x1); - setHandlerPC(HandlerBase,tc); - // warn("Exception Handler At: %x , EPC set to %x\n",HandlerBase,tc->readMiscReg(ArmISA::EPC)); - -} - -void SystemCallFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - setExceptionState(tc,0x8); - - // Set new PC - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); - // warn("Exception Handler At: %x \n",HandlerBase); - // warn("Exception Handler At: %x , EPC set to %x\n",HandlerBase,tc->readMiscReg(ArmISA::EPC)); - -} - -void InterruptFault::invoke(ThreadContext *tc) -{ -#if FULL_SYSTEM - DPRINTF(Arm,"%s encountered.\n", name()); - setExceptionState(tc,0x0A); - Addr HandlerBase; - - - uint8_t IV = bits(tc->readMiscRegNoEffect(ArmISA::Cause),Cause_IV); - if (IV)// Offset 200 for release 2 - HandlerBase= 0x20 + vect() + tc->readMiscRegNoEffect(ArmISA::EBase); - else//Ofset at 180 for release 1 - HandlerBase= vect() + tc->readMiscRegNoEffect(ArmISA::EBase); - - setHandlerPC(HandlerBase,tc); -#endif -} - -#endif // FULL_SYSTEM - -void ResetFault::invoke(ThreadContext *tc) -{ #if FULL_SYSTEM - DPRINTF(Arm,"%s encountered.\n", name()); - /* All reset activity must be invoked from here */ - tc->setPC(vect()); - tc->setNextPC(vect()+sizeof(MachInst)); - tc->setNextNPC(vect()+sizeof(MachInst)+sizeof(MachInst)); - DPRINTF(Arm,"(%x) - ResetFault::invoke : PC set to %x",(unsigned)tc,(unsigned)tc->readPC()); -#endif - // Set Coprocessor 1 (Floating Point) To Usable - //tc->setMiscReg(ArmISA::Status, ArmISA::Status | 0x20000000); -} - -void ReservedInstructionFault::invoke(ThreadContext *tc) -{ -#if FULL_SYSTEM - DPRINTF(Arm,"%s encountered.\n", name()); - setExceptionState(tc,0x0A); - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscRegNoEffect(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); -#else - panic("%s encountered.\n", name()); -#endif -} - -void ThreadFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - panic("%s encountered.\n", name()); -} - -void DspStateDisabledFault::invoke(ThreadContext *tc) -{ - DPRINTF(Arm,"%s encountered.\n", name()); - panic("%s encountered.\n", name()); +void +ArmFaultBase::invoke(ThreadContext *tc) +{ + // ARM ARM B1.6.3 + FaultBase::invoke(tc); + countStat()++; + + SCTLR sctlr = tc->readMiscReg(MISCREG_SCTLR); + CPSR cpsr = tc->readMiscReg(MISCREG_CPSR); + CPSR saved_cpsr = tc->readMiscReg(MISCREG_CPSR) | + tc->readIntReg(INTREG_CONDCODES); + + + cpsr.mode = nextMode(); + cpsr.it1 = cpsr.it2 = 0; + cpsr.j = 0; + + if (sctlr.te) + cpsr.t = 1; + cpsr.a = cpsr.a | abortDisable(); + cpsr.f = cpsr.f | fiqDisable(); + cpsr.i = 1; + tc->setMiscReg(MISCREG_CPSR, cpsr); + tc->setIntReg(INTREG_LR, tc->readPC() + + (saved_cpsr.t ? thumbPcOffset() : armPcOffset())); + + switch (nextMode()) { + case MODE_FIQ: + tc->setMiscReg(MISCREG_SPSR_FIQ, saved_cpsr); + break; + case MODE_IRQ: + tc->setMiscReg(MISCREG_SPSR_IRQ, saved_cpsr); + break; + case MODE_SVC: + tc->setMiscReg(MISCREG_SPSR_SVC, saved_cpsr); + break; + case MODE_UNDEFINED: + tc->setMiscReg(MISCREG_SPSR_UND, saved_cpsr); + break; + case MODE_ABORT: + tc->setMiscReg(MISCREG_SPSR_ABT, saved_cpsr); + break; + default: + panic("unknown Mode\n"); + } + + DPRINTF(Faults, "Invoking Fault: %s cpsr: %#x PC: %#x lr: %#x\n", name(), cpsr, + tc->readPC(), tc->readIntReg(INTREG_LR)); + tc->setPC(getVector(tc)); + tc->setNextPC(getVector(tc) + cpsr.t ? 2 : 4 ); } +#endif // FULL_SYSTEM -void CoprocessorUnusableFault::invoke(ThreadContext *tc) -{ -#if FULL_SYSTEM - DPRINTF(Arm,"%s encountered.\n", name()); - setExceptionState(tc,0xb); - /* The ID of the coprocessor causing the exception is stored in CoprocessorUnusableFault::coProcID */ - MiscReg cause = tc->readMiscReg(ArmISA::Cause); - replaceBits(cause,Cause_CE_HI,Cause_CE_LO,coProcID); - tc->setMiscRegNoEffect(ArmISA::Cause,cause); +// return via SUBS pc, lr, xxx; rfe, movs, ldm - Addr HandlerBase; - HandlerBase= vect() + tc->readMiscReg(ArmISA::EBase); // Offset 0x180 - General Exception Vector - setHandlerPC(HandlerBase,tc); - // warn("Status: %x, Cause: %x\n",tc->readMiscReg(ArmISA::Status),tc->readMiscReg(ArmISA::Cause)); -#else - warn("%s (CP%d) encountered.\n", name(), coProcID); -#endif -} } // namespace ArmISA diff --git a/src/arch/arm/faults.hh b/src/arch/arm/faults.hh index 28ecd7591..7f8aa66b6 100644 --- a/src/arch/arm/faults.hh +++ b/src/arch/arm/faults.hh @@ -26,548 +26,79 @@ * (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 - * Stephen Hines + * Authors: Ali Saidi + * Gabe Black */ #ifndef __ARM_FAULTS_HH__ #define __ARM_FAULTS_HH__ +#include "arch/arm/types.hh" +#include "config/full_system.hh" #include "sim/faults.hh" // The design of the "name" and "vect" functions is in sim/faults.hh namespace ArmISA { -typedef const Addr FaultVect; +typedef const Addr FaultOffset; -class ArmFault : public FaultBase +class ArmFaultBase : public FaultBase { protected: - virtual bool skipFaultingInstruction() {return false;} - virtual bool setRestartAddress() {return true;} - public: - Addr BadVAddr; - Addr EntryHi_Asid; - Addr EntryHi_VPN2; - Addr EntryHi_VPN2X; - Addr Context_BadVPN2; -#if FULL_SYSTEM - void invoke(ThreadContext * tc) {}; - void setExceptionState(ThreadContext *,uint8_t); - void setHandlerPC(Addr,ThreadContext *); -#endif - virtual FaultVect vect() = 0; - virtual FaultStat & countStat() = 0; -}; - -class MachineCheckFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - bool isMachineCheckFault() {return true;} -}; - -class NonMaskableInterrupt : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - bool isNonMaskableInterrupt() {return true;} -}; - -class AlignmentFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - bool isAlignmentFault() {return true;} -}; - -class AddressErrorFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif - -}; -class StoreAddressErrorFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif - -}; -class UnimplementedOpcodeFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; - - -class TLBRefillIFetchFault : public ArmFault -{ - private: - Addr vaddr; - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; -class TLBInvalidIFetchFault : public ArmFault -{ - private: - Addr vaddr; - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; - -class NDtbMissFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; - -class PDtbMissFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; - -class DtbPageFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; - -class DtbAcvFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; - -class CacheErrorFault : public ArmFault -{ - private: - Addr vaddr; - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; - - - - -static inline Fault genMachineCheckFault() -{ - return new MachineCheckFault; -} - -static inline Fault genAlignmentFault() -{ - return new AlignmentFault; -} - -class ResetFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); - -}; -class SystemCallFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; - -class SoftResetFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; -class DebugSingleStep : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; -class DebugInterrupt : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; - -class CoprocessorUnusableFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - int coProcID; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); - CoprocessorUnusableFault(int _procid){ coProcID = _procid;} -}; + Addr getVector(ThreadContext *tc); -class ReservedInstructionFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; - -class ThreadFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; + struct FaultVals + { + const FaultName name; + const FaultOffset offset; + const OperatingMode nextMode; + const uint8_t armPcOffset; + const uint8_t thumbPcOffset; + const bool abortDisable; + const bool fiqDisable; + FaultStat count; + }; - -class ArithmeticFault : public ArmFault -{ - protected: - bool skipFaultingInstruction() {return true;} - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} #if FULL_SYSTEM - void invoke(ThreadContext * tc); + void invoke(ThreadContext *tc); #endif + virtual FaultStat& countStat() = 0; + virtual FaultOffset offset() = 0; + virtual OperatingMode nextMode() = 0; + virtual uint8_t armPcOffset() = 0; + virtual uint8_t thumbPcOffset() = 0; + virtual bool abortDisable() = 0; + virtual bool fiqDisable() = 0; }; -class InterruptFault : public ArmFault +template<typename T> +class ArmFault : public ArmFaultBase { protected: - bool setRestartAddress() {return false;} - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif - - //void invoke(ThreadContext * tc); -}; - -class TrapFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif -}; - -class BreakpointFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif -}; - -class ItbRefillFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif -}; -class DtbRefillFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif -}; - -class ItbPageFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif -}; - -class ItbInvalidFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif - -}; -class TLBModifiedFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif - -}; + static FaultVals vals; -class DtbInvalidFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -#if FULL_SYSTEM - void invoke(ThreadContext * tc); -#endif - + FaultName name() const { return vals.name; } + FaultStat & countStat() {return vals.count;} + FaultOffset offset() { return vals.offset; } + OperatingMode nextMode() { return vals.nextMode; } + uint8_t armPcOffset() { return vals.armPcOffset; } + uint8_t thumbPcOffset() { return vals.thumbPcOffset; } + bool abortDisable() { return vals.abortDisable; } + bool fiqDisable() { return vals.fiqDisable; } }; -class FloatEnableFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; -class ItbMissFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; +class Reset : public ArmFault<Reset> {}; +class UndefinedInstruction : public ArmFault<UndefinedInstruction> {}; +class SupervisorCall : public ArmFault<SupervisorCall> {}; +class PrefetchAbort : public ArmFault<PrefetchAbort> {}; +class DataAbort : public ArmFault<DataAbort> {}; +class Interrupt : public ArmFault<Interrupt> {}; +class FastInterrupt : public ArmFault<FastInterrupt> {}; -class ItbAcvFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; - -class IntegerOverflowFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} -}; - -class DspStateDisabledFault : public ArmFault -{ - private: - static FaultName _name; - static FaultVect _vect; - static FaultStat _count; - public: - FaultName name() const {return _name;} - FaultVect vect() {return _vect;} - FaultStat & countStat() {return _count;} - void invoke(ThreadContext * tc); -}; } // ArmISA namespace diff --git a/src/arch/arm/insts/macromem.hh b/src/arch/arm/insts/macromem.hh index 541c9e3f5..714b8bb7e 100644 --- a/src/arch/arm/insts/macromem.hh +++ b/src/arch/arm/insts/macromem.hh @@ -84,33 +84,20 @@ class MicroMemOp : public MicroIntOp */ class ArmMacroMemoryOp : public PredMacroOp { - protected: + protected: /// Memory request flags. See mem_req_base.hh. unsigned memAccessFlags; uint32_t reglist; uint32_t ones; - uint32_t puswl, - prepost, - up, - psruser, - writeback, - loadop; ArmMacroMemoryOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass) - : PredMacroOp(mnem, _machInst, __opClass), - memAccessFlags(0), - reglist(machInst.regList), ones(0), - puswl(machInst.puswl), - prepost(machInst.puswl.prepost), - up(machInst.puswl.up), - psruser(machInst.puswl.psruser), - writeback(machInst.puswl.writeback), - loadop(machInst.puswl.loadOp) + : PredMacroOp(mnem, _machInst, __opClass), memAccessFlags(0), + reglist(machInst.regList), ones(0) { ones = number_of_ones(reglist); - numMicroops = ones + writeback + 1; + numMicroops = ones + machInst.puswl.writeback + 1; // Remember that writeback adds a uop microOps = new StaticInstPtr[numMicroops]; } @@ -121,7 +108,7 @@ class ArmMacroMemoryOp : public PredMacroOp */ class ArmMacroFPAOp : public PredMacroOp { - protected: + protected: uint32_t puswl, prepost, up, @@ -150,7 +137,7 @@ class ArmMacroFPAOp : public PredMacroOp */ class ArmMacroFMOp : public PredMacroOp { - protected: + protected: uint32_t punwl, prepost, up, diff --git a/src/arch/arm/insts/static_inst.cc b/src/arch/arm/insts/static_inst.cc index df2d5de25..bf7a38c58 100644 --- a/src/arch/arm/insts/static_inst.cc +++ b/src/arch/arm/insts/static_inst.cc @@ -27,8 +27,10 @@ * Authors: Stephen Hines */ +#include "arch/arm/faults.hh" #include "arch/arm/insts/static_inst.hh" #include "base/condcodes.hh" +#include "base/cprintf.hh" #include "base/loader/symtab.hh" namespace ArmISA @@ -62,7 +64,7 @@ ArmStaticInst::shift_rm_imm(uint32_t base, uint32_t shamt, else return (base << (32 - shamt)) | (base >> shamt); default: - fprintf(stderr, "Unhandled shift type\n"); + ccprintf(std::cerr, "Unhandled shift type\n"); exit(1); break; } @@ -101,7 +103,7 @@ ArmStaticInst::shift_rm_rs(uint32_t base, uint32_t shamt, else return (base << (32 - shamt)) | (base >> shamt); default: - fprintf(stderr, "Unhandled shift type\n"); + ccprintf(std::cerr, "Unhandled shift type\n"); exit(1); break; } @@ -141,7 +143,7 @@ ArmStaticInst::shift_carry_imm(uint32_t base, uint32_t shamt, else return (base >> (shamt - 1)) & 1; default: - fprintf(stderr, "Unhandled shift type\n"); + ccprintf(std::cerr, "Unhandled shift type\n"); exit(1); break; } @@ -182,7 +184,7 @@ ArmStaticInst::shift_carry_rs(uint32_t base, uint32_t shamt, shamt = 32; return (base >> (shamt - 1)) & 1; default: - fprintf(stderr, "Unhandled shift type\n"); + ccprintf(std::cerr, "Unhandled shift type\n"); exit(1); break; } diff --git a/src/arch/arm/insts/static_inst.hh b/src/arch/arm/insts/static_inst.hh index c963c1827..f2881c3b6 100644 --- a/src/arch/arm/insts/static_inst.hh +++ b/src/arch/arm/insts/static_inst.hh @@ -74,6 +74,56 @@ class ArmStaticInst : public StaticInst void printDataInst(std::ostream &os, bool withImm) const; std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; + + static uint32_t + cpsrWriteByInstr(CPSR cpsr, uint32_t val, + uint8_t byteMask, bool affectState) + { + bool privileged = (cpsr.mode != MODE_USER); + + uint32_t bitMask = 0; + + if (bits(byteMask, 3)) { + unsigned lowIdx = affectState ? 24 : 27; + bitMask = bitMask | mask(31, lowIdx); + } + if (bits(byteMask, 2)) { + bitMask = bitMask | mask(19, 16); + } + if (bits(byteMask, 1)) { + unsigned highIdx = affectState ? 15 : 9; + unsigned lowIdx = privileged ? 8 : 9; + bitMask = bitMask | mask(highIdx, lowIdx); + } + if (bits(byteMask, 0)) { + if (privileged) { + bitMask = bitMask | mask(7, 6); + bitMask = bitMask | mask(5); + } + if (affectState) + bitMask = bitMask | (1 << 5); + } + + return ((uint32_t)cpsr & ~bitMask) | (val & bitMask); + } + + static uint32_t + spsrWriteByInstr(uint32_t spsr, uint32_t val, + uint8_t byteMask, bool affectState) + { + uint32_t bitMask = 0; + + if (bits(byteMask, 3)) + bitMask = bitMask | mask(31, 24); + if (bits(byteMask, 2)) + bitMask = bitMask | mask(19, 16); + if (bits(byteMask, 1)) + bitMask = bitMask | mask(15, 8); + if (bits(byteMask, 0)) + bitMask = bitMask | mask(7, 0); + + return ((spsr & ~bitMask) | (val & bitMask)); + } }; } diff --git a/src/arch/arm/interrupts.cc b/src/arch/arm/interrupts.cc new file mode 100644 index 000000000..a47ebc75d --- /dev/null +++ b/src/arch/arm/interrupts.cc @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2009 ARM Limited + * 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: Ali Saidi + */ + +#include "arch/arm/interrupts.hh" + +ArmISA::Interrupts * +ArmInterruptsParams::create() +{ + return new ArmISA::Interrupts(this); +} diff --git a/src/arch/arm/interrupts.hh b/src/arch/arm/interrupts.hh new file mode 100644 index 000000000..189341d6b --- /dev/null +++ b/src/arch/arm/interrupts.hh @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2006 The Regents of The University of Michigan + * Copyright (c) 2009 ARM Limited + * 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: Ali Saidi + */ + +#ifndef __ARCH_ARM_INTERRUPT_HH__ +#define __ARCH_ARM_INTERRUPT_HH__ + +#include "arch/arm/faults.hh" +#include "arch/arm/isa_traits.hh" +#include "arch/arm/registers.hh" +#include "cpu/thread_context.hh" +#include "params/ArmInterrupts.hh" +#include "sim/sim_object.hh" + +namespace ArmISA +{ + +class Interrupts : public SimObject +{ + private: + BaseCPU * cpu; + + uint64_t intStatus; + + public: + + void + setCPU(BaseCPU * _cpu) + { + cpu = _cpu; + } + + typedef ArmInterruptsParams Params; + + const Params * + params() const + { + return dynamic_cast<const Params *>(_params); + } + + Interrupts(Params * p) : SimObject(p), cpu(NULL) + { + clearAll(); + } + + + void + post(int int_num, int index) + { + } + + void + clear(int int_num, int index) + { + } + + void + clearAll() + { + intStatus = 0; + } + + bool + checkInterrupts(ThreadContext *tc) const + { + return intStatus; + } + + Fault + getInterrupt(ThreadContext *tc) + { + warn_once("ARM Interrupts not handled\n"); + return NoFault; + } + + void + updateIntrInfo(ThreadContext *tc) + { + + } + + void + serialize(std::ostream &os) + { + } + + void + unserialize(Checkpoint *cp, const std::string §ion) + { + } +}; +} // namespace ARM_ISA + +#endif // __ARCH_ARM_INTERRUPT_HH__ diff --git a/src/arch/arm/intregs.hh b/src/arch/arm/intregs.hh new file mode 100644 index 000000000..15499601a --- /dev/null +++ b/src/arch/arm/intregs.hh @@ -0,0 +1,337 @@ +/* + * Copyright (c) 2009 The Regents of The University of Michigan + * 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 + */ + +#include <assert.h> + +#ifndef __ARCH_ARM_INTREGS_HH__ +#define __ARCH_ARM_INTREGS_HH__ + +namespace ArmISA +{ + +enum IntRegIndex +{ + /* All the unique register indices. */ + INTREG_R0, + INTREG_R1, + INTREG_R2, + INTREG_R3, + INTREG_R4, + INTREG_R5, + INTREG_R6, + INTREG_R7, + INTREG_R8, + INTREG_R9, + INTREG_R10, + INTREG_R11, + INTREG_R12, + INTREG_R13, + INTREG_SP = INTREG_R13, + INTREG_R14, + INTREG_LR = INTREG_R14, + INTREG_R15, + INTREG_PC = INTREG_R15, + + INTREG_R13_SVC, + INTREG_SP_SVC = INTREG_R13_SVC, + INTREG_R14_SVC, + INTREG_LR_SVC = INTREG_R14_SVC, + + INTREG_R13_MON, + INTREG_SP_MON = INTREG_R13_MON, + INTREG_R14_MON, + INTREG_LR_MON = INTREG_R14_MON, + + INTREG_R13_ABT, + INTREG_SP_ABT = INTREG_R13_ABT, + INTREG_R14_ABT, + INTREG_LR_ABT = INTREG_R14_ABT, + + INTREG_R13_UND, + INTREG_SP_UND = INTREG_R13_UND, + INTREG_R14_UND, + INTREG_LR_UND = INTREG_R14_UND, + + INTREG_R13_IRQ, + INTREG_SP_IRQ = INTREG_R13_IRQ, + INTREG_R14_IRQ, + INTREG_LR_IRQ = INTREG_R14_IRQ, + + INTREG_R8_FIQ, + INTREG_R9_FIQ, + INTREG_R10_FIQ, + INTREG_R11_FIQ, + INTREG_R12_FIQ, + INTREG_R13_FIQ, + INTREG_SP_FIQ = INTREG_R13_FIQ, + INTREG_R14_FIQ, + INTREG_LR_FIQ = INTREG_R14_FIQ, + + INTREG_ZERO, // Dummy zero reg since there has to be one. + INTREG_UREG0, + INTREG_RHI, + INTREG_RLO, + INTREG_CONDCODES, + + NUM_INTREGS, + NUM_ARCH_INTREGS = INTREG_PC + 1, + + /* All the aliased indexes. */ + + /* USR mode */ + INTREG_R0_USR = INTREG_R0, + INTREG_R1_USR = INTREG_R1, + INTREG_R2_USR = INTREG_R2, + INTREG_R3_USR = INTREG_R3, + INTREG_R4_USR = INTREG_R4, + INTREG_R5_USR = INTREG_R5, + INTREG_R6_USR = INTREG_R6, + INTREG_R7_USR = INTREG_R7, + INTREG_R8_USR = INTREG_R8, + INTREG_R9_USR = INTREG_R9, + INTREG_R10_USR = INTREG_R10, + INTREG_R11_USR = INTREG_R11, + INTREG_R12_USR = INTREG_R12, + INTREG_R13_USR = INTREG_R13, + INTREG_SP_USR = INTREG_SP, + INTREG_R14_USR = INTREG_R14, + INTREG_LR_USR = INTREG_LR, + INTREG_R15_USR = INTREG_R15, + INTREG_PC_USR = INTREG_PC, + + /* SVC mode */ + INTREG_R0_SVC = INTREG_R0, + INTREG_R1_SVC = INTREG_R1, + INTREG_R2_SVC = INTREG_R2, + INTREG_R3_SVC = INTREG_R3, + INTREG_R4_SVC = INTREG_R4, + INTREG_R5_SVC = INTREG_R5, + INTREG_R6_SVC = INTREG_R6, + INTREG_R7_SVC = INTREG_R7, + INTREG_R8_SVC = INTREG_R8, + INTREG_R9_SVC = INTREG_R9, + INTREG_R10_SVC = INTREG_R10, + INTREG_R11_SVC = INTREG_R11, + INTREG_R12_SVC = INTREG_R12, + INTREG_PC_SVC = INTREG_PC, + INTREG_R15_SVC = INTREG_R15, + + /* MON mode */ + INTREG_R0_MON = INTREG_R0, + INTREG_R1_MON = INTREG_R1, + INTREG_R2_MON = INTREG_R2, + INTREG_R3_MON = INTREG_R3, + INTREG_R4_MON = INTREG_R4, + INTREG_R5_MON = INTREG_R5, + INTREG_R6_MON = INTREG_R6, + INTREG_R7_MON = INTREG_R7, + INTREG_R8_MON = INTREG_R8, + INTREG_R9_MON = INTREG_R9, + INTREG_R10_MON = INTREG_R10, + INTREG_R11_MON = INTREG_R11, + INTREG_R12_MON = INTREG_R12, + INTREG_PC_MON = INTREG_PC, + INTREG_R15_MON = INTREG_R15, + + /* ABT mode */ + INTREG_R0_ABT = INTREG_R0, + INTREG_R1_ABT = INTREG_R1, + INTREG_R2_ABT = INTREG_R2, + INTREG_R3_ABT = INTREG_R3, + INTREG_R4_ABT = INTREG_R4, + INTREG_R5_ABT = INTREG_R5, + INTREG_R6_ABT = INTREG_R6, + INTREG_R7_ABT = INTREG_R7, + INTREG_R8_ABT = INTREG_R8, + INTREG_R9_ABT = INTREG_R9, + INTREG_R10_ABT = INTREG_R10, + INTREG_R11_ABT = INTREG_R11, + INTREG_R12_ABT = INTREG_R12, + INTREG_PC_ABT = INTREG_PC, + INTREG_R15_ABT = INTREG_R15, + + /* UND mode */ + INTREG_R0_UND = INTREG_R0, + INTREG_R1_UND = INTREG_R1, + INTREG_R2_UND = INTREG_R2, + INTREG_R3_UND = INTREG_R3, + INTREG_R4_UND = INTREG_R4, + INTREG_R5_UND = INTREG_R5, + INTREG_R6_UND = INTREG_R6, + INTREG_R7_UND = INTREG_R7, + INTREG_R8_UND = INTREG_R8, + INTREG_R9_UND = INTREG_R9, + INTREG_R10_UND = INTREG_R10, + INTREG_R11_UND = INTREG_R11, + INTREG_R12_UND = INTREG_R12, + INTREG_PC_UND = INTREG_PC, + INTREG_R15_UND = INTREG_R15, + + /* IRQ mode */ + INTREG_R0_IRQ = INTREG_R0, + INTREG_R1_IRQ = INTREG_R1, + INTREG_R2_IRQ = INTREG_R2, + INTREG_R3_IRQ = INTREG_R3, + INTREG_R4_IRQ = INTREG_R4, + INTREG_R5_IRQ = INTREG_R5, + INTREG_R6_IRQ = INTREG_R6, + INTREG_R7_IRQ = INTREG_R7, + INTREG_R8_IRQ = INTREG_R8, + INTREG_R9_IRQ = INTREG_R9, + INTREG_R10_IRQ = INTREG_R10, + INTREG_R11_IRQ = INTREG_R11, + INTREG_R12_IRQ = INTREG_R12, + INTREG_PC_IRQ = INTREG_PC, + INTREG_R15_IRQ = INTREG_R15, + + /* FIQ mode */ + INTREG_R0_FIQ = INTREG_R0, + INTREG_R1_FIQ = INTREG_R1, + INTREG_R2_FIQ = INTREG_R2, + INTREG_R3_FIQ = INTREG_R3, + INTREG_R4_FIQ = INTREG_R4, + INTREG_R5_FIQ = INTREG_R5, + INTREG_R6_FIQ = INTREG_R6, + INTREG_R7_FIQ = INTREG_R7, + INTREG_PC_FIQ = INTREG_PC, + INTREG_R15_FIQ = INTREG_R15, +}; + +typedef IntRegIndex IntRegMap[NUM_ARCH_INTREGS]; + +const IntRegMap IntRegUsrMap = { + INTREG_R0_USR, INTREG_R1_USR, INTREG_R2_USR, INTREG_R3_USR, + INTREG_R4_USR, INTREG_R5_USR, INTREG_R6_USR, INTREG_R7_USR, + INTREG_R8_USR, INTREG_R9_USR, INTREG_R10_USR, INTREG_R11_USR, + INTREG_R12_USR, INTREG_R13_USR, INTREG_R14_USR, INTREG_R15_USR +}; + +static inline IntRegIndex +INTREG_USR(unsigned index) +{ + assert(index < NUM_ARCH_INTREGS); + return IntRegUsrMap[index]; +} + +const IntRegMap IntRegSvcMap = { + INTREG_R0_SVC, INTREG_R1_SVC, INTREG_R2_SVC, INTREG_R3_SVC, + INTREG_R4_SVC, INTREG_R5_SVC, INTREG_R6_SVC, INTREG_R7_SVC, + INTREG_R8_SVC, INTREG_R9_SVC, INTREG_R10_SVC, INTREG_R11_SVC, + INTREG_R12_SVC, INTREG_R13_SVC, INTREG_R14_SVC, INTREG_R15_SVC +}; + +static inline IntRegIndex +INTREG_SVC(unsigned index) +{ + assert(index < NUM_ARCH_INTREGS); + return IntRegSvcMap[index]; +} + +const IntRegMap IntRegMonMap = { + INTREG_R0_MON, INTREG_R1_MON, INTREG_R2_MON, INTREG_R3_MON, + INTREG_R4_MON, INTREG_R5_MON, INTREG_R6_MON, INTREG_R7_MON, + INTREG_R8_MON, INTREG_R9_MON, INTREG_R10_MON, INTREG_R11_MON, + INTREG_R12_MON, INTREG_R13_MON, INTREG_R14_MON, INTREG_R15_MON +}; + +static inline IntRegIndex +INTREG_MON(unsigned index) +{ + assert(index < NUM_ARCH_INTREGS); + return IntRegMonMap[index]; +} + +const IntRegMap IntRegAbtMap = { + INTREG_R0_ABT, INTREG_R1_ABT, INTREG_R2_ABT, INTREG_R3_ABT, + INTREG_R4_ABT, INTREG_R5_ABT, INTREG_R6_ABT, INTREG_R7_ABT, + INTREG_R8_ABT, INTREG_R9_ABT, INTREG_R10_ABT, INTREG_R11_ABT, + INTREG_R12_ABT, INTREG_R13_ABT, INTREG_R14_ABT, INTREG_R15_ABT +}; + +static inline IntRegIndex +INTREG_ABT(unsigned index) +{ + assert(index < NUM_ARCH_INTREGS); + return IntRegAbtMap[index]; +} + +const IntRegMap IntRegUndMap = { + INTREG_R0_UND, INTREG_R1_UND, INTREG_R2_UND, INTREG_R3_UND, + INTREG_R4_UND, INTREG_R5_UND, INTREG_R6_UND, INTREG_R7_UND, + INTREG_R8_UND, INTREG_R9_UND, INTREG_R10_UND, INTREG_R11_UND, + INTREG_R12_UND, INTREG_R13_UND, INTREG_R14_UND, INTREG_R15_UND +}; + +static inline IntRegIndex +INTREG_UND(unsigned index) +{ + assert(index < NUM_ARCH_INTREGS); + return IntRegUndMap[index]; +} + +const IntRegMap IntRegIrqMap = { + INTREG_R0_IRQ, INTREG_R1_IRQ, INTREG_R2_IRQ, INTREG_R3_IRQ, + INTREG_R4_IRQ, INTREG_R5_IRQ, INTREG_R6_IRQ, INTREG_R7_IRQ, + INTREG_R8_IRQ, INTREG_R9_IRQ, INTREG_R10_IRQ, INTREG_R11_IRQ, + INTREG_R12_IRQ, INTREG_R13_IRQ, INTREG_R14_IRQ, INTREG_R15_IRQ +}; + +static inline IntRegIndex +INTREG_IRQ(unsigned index) +{ + assert(index < NUM_ARCH_INTREGS); + return IntRegIrqMap[index]; +} + +const IntRegMap IntRegFiqMap = { + INTREG_R0_FIQ, INTREG_R1_FIQ, INTREG_R2_FIQ, INTREG_R3_FIQ, + INTREG_R4_FIQ, INTREG_R5_FIQ, INTREG_R6_FIQ, INTREG_R7_FIQ, + INTREG_R8_FIQ, INTREG_R9_FIQ, INTREG_R10_FIQ, INTREG_R11_FIQ, + INTREG_R12_FIQ, INTREG_R13_FIQ, INTREG_R14_FIQ, INTREG_R15_FIQ +}; + +static inline IntRegIndex +INTREG_FIQ(unsigned index) +{ + assert(index < NUM_ARCH_INTREGS); + return IntRegFiqMap[index]; +} + +static inline IntRegIndex +intRegForceUser(unsigned index) +{ + assert(index < NUM_ARCH_INTREGS); + + return index == 15 ? (IntRegIndex)15 : (IntRegIndex)(index + NUM_INTREGS); +} + +} + +#endif diff --git a/src/arch/arm/isa.hh b/src/arch/arm/isa.hh index 2315afa9e..905eb0183 100644 --- a/src/arch/arm/isa.hh +++ b/src/arch/arm/isa.hh @@ -44,6 +44,38 @@ namespace ArmISA { protected: MiscReg miscRegs[NumMiscRegs]; + const IntRegIndex *intRegMap; + + void + updateRegMap(CPSR cpsr) + { + switch (cpsr.mode) { + case MODE_USER: + case MODE_SYSTEM: + intRegMap = IntRegUsrMap; + break; + case MODE_FIQ: + intRegMap = IntRegFiqMap; + break; + case MODE_IRQ: + intRegMap = IntRegIrqMap; + break; + case MODE_SVC: + intRegMap = IntRegSvcMap; + break; + case MODE_MON: + intRegMap = IntRegMonMap; + break; + case MODE_ABORT: + intRegMap = IntRegAbtMap; + break; + case MODE_UNDEFINED: + intRegMap = IntRegUndMap; + break; + default: + panic("Unrecognized mode setting in CPSR.\n"); + } + } public: void clear() @@ -52,6 +84,15 @@ namespace ArmISA CPSR cpsr = 0; cpsr.mode = MODE_USER; miscRegs[MISCREG_CPSR] = cpsr; + updateRegMap(cpsr); + + SCTLR sctlr = 0; + sctlr.nmfi = 1; + sctlr.rao1 = 1; + sctlr.rao2 = 1; + sctlr.rao3 = 1; + sctlr.rao4 = 1; + //XXX We need to initialize the rest of the state. } @@ -59,34 +100,94 @@ namespace ArmISA readMiscRegNoEffect(int misc_reg) { assert(misc_reg < NumMiscRegs); + if (misc_reg == MISCREG_SPSR) { + CPSR cpsr = miscRegs[MISCREG_CPSR]; + switch (cpsr.mode) { + case MODE_USER: + return miscRegs[MISCREG_SPSR]; + case MODE_FIQ: + return miscRegs[MISCREG_SPSR_FIQ]; + case MODE_IRQ: + return miscRegs[MISCREG_SPSR_IRQ]; + case MODE_SVC: + return miscRegs[MISCREG_SPSR_SVC]; + case MODE_MON: + return miscRegs[MISCREG_SPSR_MON]; + case MODE_ABORT: + return miscRegs[MISCREG_SPSR_ABT]; + case MODE_UNDEFINED: + return miscRegs[MISCREG_SPSR_UND]; + default: + return miscRegs[MISCREG_SPSR]; + } + } return miscRegs[misc_reg]; } MiscReg readMiscReg(int misc_reg, ThreadContext *tc) { - assert(misc_reg < NumMiscRegs); - return miscRegs[misc_reg]; + return readMiscRegNoEffect(misc_reg); } void setMiscRegNoEffect(int misc_reg, const MiscReg &val) { assert(misc_reg < NumMiscRegs); + if (misc_reg == MISCREG_SPSR) { + CPSR cpsr = miscRegs[MISCREG_CPSR]; + switch (cpsr.mode) { + case MODE_USER: + miscRegs[MISCREG_SPSR] = val; + return; + case MODE_FIQ: + miscRegs[MISCREG_SPSR_FIQ] = val; + return; + case MODE_IRQ: + miscRegs[MISCREG_SPSR_IRQ] = val; + return; + case MODE_SVC: + miscRegs[MISCREG_SPSR_SVC] = val; + return; + case MODE_MON: + miscRegs[MISCREG_SPSR_MON] = val; + return; + case MODE_ABORT: + miscRegs[MISCREG_SPSR_ABT] = val; + return; + case MODE_UNDEFINED: + miscRegs[MISCREG_SPSR_UND] = val; + return; + default: + miscRegs[MISCREG_SPSR] = val; + return; + } + } miscRegs[misc_reg] = val; } void setMiscReg(int misc_reg, const MiscReg &val, ThreadContext *tc) { - assert(misc_reg < NumMiscRegs); - miscRegs[misc_reg] = val; + if (misc_reg == MISCREG_CPSR) { + updateRegMap(val); + } + return setMiscRegNoEffect(misc_reg, val); } int flattenIntIndex(int reg) { - return reg; + assert(reg >= 0); + if (reg < NUM_ARCH_INTREGS) { + return intRegMap[reg]; + } else if (reg < NUM_INTREGS) { + return reg; + } else { + reg -= NUM_INTREGS; + assert(reg < NUM_ARCH_INTREGS); + return reg; + } } int @@ -95,9 +196,10 @@ namespace ArmISA return reg; } - void serialize(std::ostream &os) + void serialize(EventManager *em, std::ostream &os) {} - void unserialize(Checkpoint *cp, const std::string §ion) + void unserialize(EventManager *em, Checkpoint *cp, + const std::string §ion) {} ISA() diff --git a/src/arch/arm/isa/bitfields.isa b/src/arch/arm/isa/bitfields.isa index 5785939cc..8ff819983 100644 --- a/src/arch/arm/isa/bitfields.isa +++ b/src/arch/arm/isa/bitfields.isa @@ -38,14 +38,18 @@ def bitfield ENCODING encoding; def bitfield OPCODE opcode; def bitfield MEDIA_OPCODE mediaOpcode; def bitfield MEDIA_OPCODE2 mediaOpcode2; +def bitfield USEIMM useImm; def bitfield OPCODE_24 opcode24; def bitfield OPCODE_23_20 opcode23_20; def bitfield OPCODE_23_21 opcode23_21; def bitfield OPCODE_22 opcode22; +def bitfield OPCODE_20 opcode20; def bitfield OPCODE_19 opcode19; +def bitfield OPCODE_18 opcode18; def bitfield OPCODE_15_12 opcode15_12; def bitfield OPCODE_15 opcode15; def bitfield MISC_OPCODE miscOpcode; +def bitfield OPC2 opc2; def bitfield OPCODE_7 opcode7; def bitfield OPCODE_4 opcode4; diff --git a/src/arch/arm/isa/decoder.isa b/src/arch/arm/isa/decoder.isa index a999b52e9..ff20c6107 100644 --- a/src/arch/arm/isa/decoder.isa +++ b/src/arch/arm/isa/decoder.isa @@ -51,20 +51,25 @@ format DataOp { resTemp = ((uint64_t)Rm)*((uint64_t)Rs); Rd = (uint32_t)(resTemp & 0xffffffff); Rn = (uint32_t)(resTemp >> 32); - }}); - 0x5: WarnUnimpl::smlal(); + }}, llbit); + 0x5: smlal({{ + resTemp = ((int64_t)Rm) * ((int64_t)Rs); + resTemp += (((uint64_t)Rn) << 32) | ((uint64_t)Rd); + Rd = (uint32_t)(resTemp & 0xffffffff); + Rn = (uint32_t)(resTemp >> 32); + }}, llbit); 0x6: smull({{ resTemp = ((int64_t)(int32_t)Rm)* ((int64_t)(int32_t)Rs); Rd = (int32_t)(resTemp & 0xffffffff); Rn = (int32_t)(resTemp >> 32); - }}); + }}, llbit); 0x7: umlal({{ resTemp = ((uint64_t)Rm)*((uint64_t)Rs); resTemp += ((uint64_t)Rn << 32)+((uint64_t)Rd); Rd = (uint32_t)(resTemp & 0xffffffff); Rn = (uint32_t)(resTemp >> 32); - }}); + }}, llbit); } 1: decode PUBWL { 0x10: WarnUnimpl::swp(); @@ -91,9 +96,9 @@ format DataOp { 0x2: sub({{ Rd = resTemp = Rn - op2; }}, sub); 0x3: rsb({{ Rd = resTemp = op2 - Rn; }}, rsb); 0x4: add({{ Rd = resTemp = Rn + op2; }}, add); - 0x5: adc({{ Rd = resTemp = Rn + op2 + Cpsr<29:>; }}, add); - 0x6: sbc({{ Rd = resTemp = Rn - op2 - !Cpsr<29:>; }}, sub); - 0x7: rsc({{ Rd = resTemp = op2 - Rn - !Cpsr<29:>; }}, rsb); + 0x5: adc({{ Rd = resTemp = Rn + op2 + CondCodes<29:>; }}, add); + 0x6: sbc({{ Rd = resTemp = Rn - op2 - !CondCodes<29:>; }}, sub); + 0x7: rsc({{ Rd = resTemp = op2 - Rn - !CondCodes<29:>; }}, rsb); 0x8: tst({{ resTemp = Rn & op2; }}); 0x9: teq({{ resTemp = Rn ^ op2; }}); 0xa: cmp({{ resTemp = Rn - op2; }}, sub); @@ -105,10 +110,37 @@ format DataOp { } 1: decode MISC_OPCODE { 0x0: decode OPCODE { - 0x8: WarnUnimpl::mrs_cpsr(); - 0x9: WarnUnimpl::msr_cpsr(); - 0xa: WarnUnimpl::mrs_spsr(); - 0xb: WarnUnimpl::msr_spsr(); + 0x8: PredOp::mrs_cpsr({{ + Rd = (Cpsr | CondCodes) & 0xF8FF03DF; + }}); + 0x9: decode USEIMM { + // The mask field is the same as the RN index. + 0: PredOp::msr_cpsr_reg({{ + uint32_t newCpsr = + cpsrWriteByInstr(Cpsr | CondCodes, + Rm, RN, false); + Cpsr = ~CondCodesMask & newCpsr; + CondCodes = CondCodesMask & newCpsr; + }}); + 1: PredImmOp::msr_cpsr_imm({{ + uint32_t newCpsr = + cpsrWriteByInstr(Cpsr | CondCodes, + rotated_imm, RN, false); + Cpsr = ~CondCodesMask & newCpsr; + CondCodes = CondCodesMask & newCpsr; + }}); + } + 0xa: PredOp::mrs_spsr({{ Rd = Spsr; }}); + 0xb: decode USEIMM { + // The mask field is the same as the RN index. + 0: PredOp::msr_spsr_reg({{ + Spsr = spsrWriteByInstr(Spsr, Rm, RN, false); + }}); + 1: PredImmOp::msr_spsr_imm({{ + Spsr = spsrWriteByInstr(Spsr, rotated_imm, + RN, false); + }}); + } } 0x1: decode OPCODE { 0x9: BranchExchange::bx({{ }}); @@ -129,28 +161,32 @@ format DataOp { 0xb: WarnUnimpl::qdsub(); } 0x8: decode OPCODE { - 0x8: WarnUnimpl::smlabb(); + 0x8: smlabb({{ Rn = resTemp = sext<16>(Rm<15:0>) * sext<16>(Rs<15:0>) + Rd; }}, overflow); 0x9: WarnUnimpl::smlalbb(); 0xa: WarnUnimpl::smlawb(); - 0xb: WarnUnimpl::smulbb(); + 0xb: smulbb({{ Rn = resTemp = sext<16>(Rm<15:0>) * sext<16>(Rs<15:0>); }}, none); } 0xa: decode OPCODE { - 0x8: WarnUnimpl::smlatb(); - 0x9: WarnUnimpl::smulwb(); + 0x8: smlatb({{ Rn = resTemp = sext<16>(Rm<31:16>) * sext<16>(Rs<15:0>) + Rd; }}, overflow); + 0x9: smulwb({{ + Rn = resTemp = bits(sext<32>(Rm) * sext<16>(Rs<15:0>), 47, 16); + }}, none); 0xa: WarnUnimpl::smlaltb(); - 0xb: WarnUnimpl::smultb(); + 0xb: smultb({{ Rn = resTemp = sext<16>(Rm<31:16>) * sext<16>(Rs<15:0>); }}, none); } 0xc: decode OPCODE { - 0x8: WarnUnimpl::smlabt(); + 0x8: smlabt({{ Rn = resTemp = sext<16>(Rm<15:0>) * sext<16>(Rs<31:16>) + Rd; }}, overflow); 0x9: WarnUnimpl::smlawt(); 0xa: WarnUnimpl::smlalbt(); - 0xb: WarnUnimpl::smulbt(); + 0xb: smulbt({{ Rn = resTemp = sext<16>(Rm<15:0>) * sext<16>(Rs<31:16>); }}, none); } 0xe: decode OPCODE { - 0x8: WarnUnimpl::smlatt(); - 0x9: WarnUnimpl::smulwt(); + 0x8: smlatt({{ Rn = resTemp = sext<16>(Rm<31:16>) * sext<16>(Rs<31:16>) + Rd; }}, overflow); + 0x9: smulwt({{ + Rn = resTemp = bits(sext<32>(Rm) * sext<16>(Rs<31:16>), 47, 16); + }}, none); 0xa: WarnUnimpl::smlaltt(); - 0xb: WarnUnimpl::smultt(); + 0xb: smultt({{ Rn = resTemp = sext<16>(Rm<31:16>) * sext<16>(Rs<31:16>); }}, none); } } } @@ -163,9 +199,15 @@ format DataOp { 0x2: subi({{ Rd = resTemp = Rn - rotated_imm; }}, sub); 0x3: rsbi({{ Rd = resTemp = rotated_imm - Rn; }}, rsb); 0x4: addi({{ Rd = resTemp = Rn + rotated_imm; }}, add); - 0x5: adci({{ Rd = resTemp = Rn + rotated_imm + Cpsr<29:>; }}, add); - 0x6: sbci({{ Rd = resTemp = Rn -rotated_imm - !Cpsr<29:>; }}, sub); - 0x7: rsci({{ Rd = resTemp = rotated_imm - Rn - !Cpsr<29:>;}}, rsb); + 0x5: adci({{ + Rd = resTemp = Rn + rotated_imm + CondCodes<29:>; + }}, add); + 0x6: sbci({{ + Rd = resTemp = Rn -rotated_imm - !CondCodes<29:>; + }}, sub); + 0x7: rsci({{ + Rd = resTemp = rotated_imm - Rn - !CondCodes<29:>; + }}, rsb); 0x8: tsti({{ resTemp = Rn & rotated_imm; }}); 0x9: teqi({{ resTemp = Rn ^ rotated_imm; }}); 0xa: cmpi({{ resTemp = Rn - rotated_imm; }}, sub); @@ -178,11 +220,27 @@ format DataOp { } 1: decode OPCODE { // The following two instructions aren't supposed to be defined - 0x8: WarnUnimpl::undefined_instruction(); - 0x9: WarnUnimpl::undefined_instruction(); - - 0xa: WarnUnimpl::mrs_i_cpsr(); - 0xb: WarnUnimpl::mrs_i_spsr(); + 0x8: DataOp::movw({{ Rd = IMMED_11_0 | (RN << 12) ; }}); + 0x9: decode RN { + 0: decode IMM { + 0: PredImmOp::nop({{ ; }}); + 1: WarnUnimpl::yield(); + 2: WarnUnimpl::wfe(); + 3: WarnUnimpl::wfi(); + 4: WarnUnimpl::sev(); + } + default: PredImmOp::msr_i_cpsr({{ + uint32_t newCpsr = + cpsrWriteByInstr(Cpsr | CondCodes, + rotated_imm, RN, false); + Cpsr = ~CondCodesMask & newCpsr; + CondCodes = CondCodesMask & newCpsr; + }}); + } + 0xa: PredOp::movt({{ Rd = IMMED_11_0 << 16 | RN << 28 | Rd<15:0>; }}); + 0xb: PredImmOp::msr_i_spsr({{ + Spsr = spsrWriteByInstr(Spsr, rotated_imm, RN, false); + }}); } } 0x2: AddrMode2::addrMode2(Disp, disp); @@ -324,77 +382,79 @@ format DataOp { } } 0x7: decode OPCODE_24 { - 0: decode CPNUM { - // Coprocessor Instructions - 0x1: decode OPCODE_4 { + 0: decode OPCODE_4 { + 0: decode CPNUM { format FloatOp { - // Basic FPA Instructions - 0: decode OPCODE_23_20 { - 0x0: decode OPCODE_15 { - 0: adf({{ Fd.sf = Fn.sf + Fm.sf; }}); - 1: mvf({{ Fd.sf = Fm.sf; }}); - } - 0x1: decode OPCODE_15 { - 0: muf({{ Fd.sf = Fn.sf * Fm.sf; }}); - 1: mnf({{ Fd.sf = -Fm.sf; }}); - } - 0x2: decode OPCODE_15 { - 0: suf({{ Fd.sf = Fn.sf - Fm.sf; }}); - 1: abs({{ Fd.sf = fabs(Fm.sf); }}); - } - 0x3: decode OPCODE_15 { - 0: rsf({{ Fd.sf = Fm.sf - Fn.sf; }}); - 1: rnd({{ Fd.sf = rint(Fm.sf); }}); - } - 0x4: decode OPCODE_15 { - 0: dvf({{ Fd.sf = Fn.sf / Fm.sf; }}); - 1: sqt({{ Fd.sf = sqrt(Fm.sf); }}); - } - 0x5: decode OPCODE_15 { - 0: rdf({{ Fd.sf = Fm.sf / Fn.sf; }}); - 1: log({{ Fd.sf = log10(Fm.sf); }}); - } - 0x6: decode OPCODE_15 { - 0: pow({{ Fd.sf = pow(Fm.sf, Fn.sf); }}); - 1: lgn({{ Fd.sf = log(Fm.sf); }}); - } - 0x7: decode OPCODE_15 { - 0: rpw({{ Fd.sf = pow(Fn.sf, Fm.sf); }}); - 1: exp({{ Fd.sf = exp(Fm.sf); }}); - } - 0x8: decode OPCODE_15 { - 0: rmf({{ Fd.sf = drem(Fn.sf, Fm.sf); }}); - 1: sin({{ Fd.sf = sin(Fm.sf); }}); - } - 0x9: decode OPCODE_15 { - 0: fml({{ Fd.sf = Fn.sf * Fm.sf; }}); - 1: cos({{ Fd.sf = cos(Fm.sf); }}); - } - 0xa: decode OPCODE_15 { - 0: fdv({{ Fd.sf = Fn.sf / Fm.sf; }}); - 1: tan({{ Fd.sf = tan(Fm.sf); }}); - } - 0xb: decode OPCODE_15 { - 0: frd({{ Fd.sf = Fm.sf / Fn.sf; }}); - 1: asn({{ Fd.sf = asin(Fm.sf); }}); - } - 0xc: decode OPCODE_15 { - 0: pol({{ Fd.sf = atan2(Fn.sf, Fm.sf); }}); - 1: acs({{ Fd.sf = acos(Fm.sf); }}); - } - 0xd: decode OPCODE_15 { - 1: atn({{ Fd.sf = atan(Fm.sf); }}); - } - 0xe: decode OPCODE_15 { - // Unnormalised Round - 1: FailUnimpl::urd(); - } - 0xf: decode OPCODE_15 { - // Normalise - 1: FailUnimpl::nrm(); - } - } - 1: decode OPCODE_15_12 { + 0x1: decode OPCODE_23_20 { + 0x0: decode OPCODE_15 { + 0: adf({{ Fd.sf = Fn.sf + Fm.sf; }}); + 1: mvf({{ Fd.sf = Fm.sf; }}); + } + 0x1: decode OPCODE_15 { + 0: muf({{ Fd.sf = Fn.sf * Fm.sf; }}); + 1: mnf({{ Fd.sf = -Fm.sf; }}); + } + 0x2: decode OPCODE_15 { + 0: suf({{ Fd.sf = Fn.sf - Fm.sf; }}); + 1: abs({{ Fd.sf = fabs(Fm.sf); }}); + } + 0x3: decode OPCODE_15 { + 0: rsf({{ Fd.sf = Fm.sf - Fn.sf; }}); + 1: rnd({{ Fd.sf = rint(Fm.sf); }}); + } + 0x4: decode OPCODE_15 { + 0: dvf({{ Fd.sf = Fn.sf / Fm.sf; }}); + 1: sqt({{ Fd.sf = sqrt(Fm.sf); }}); + } + 0x5: decode OPCODE_15 { + 0: rdf({{ Fd.sf = Fm.sf / Fn.sf; }}); + 1: log({{ Fd.sf = log10(Fm.sf); }}); + } + 0x6: decode OPCODE_15 { + 0: pow({{ Fd.sf = pow(Fm.sf, Fn.sf); }}); + 1: lgn({{ Fd.sf = log(Fm.sf); }}); + } + 0x7: decode OPCODE_15 { + 0: rpw({{ Fd.sf = pow(Fn.sf, Fm.sf); }}); + 1: exp({{ Fd.sf = exp(Fm.sf); }}); + } + 0x8: decode OPCODE_15 { + 0: rmf({{ Fd.sf = drem(Fn.sf, Fm.sf); }}); + 1: sin({{ Fd.sf = sin(Fm.sf); }}); + } + 0x9: decode OPCODE_15 { + 0: fml({{ Fd.sf = Fn.sf * Fm.sf; }}); + 1: cos({{ Fd.sf = cos(Fm.sf); }}); + } + 0xa: decode OPCODE_15 { + 0: fdv({{ Fd.sf = Fn.sf / Fm.sf; }}); + 1: tan({{ Fd.sf = tan(Fm.sf); }}); + } + 0xb: decode OPCODE_15 { + 0: frd({{ Fd.sf = Fm.sf / Fn.sf; }}); + 1: asn({{ Fd.sf = asin(Fm.sf); }}); + } + 0xc: decode OPCODE_15 { + 0: pol({{ Fd.sf = atan2(Fn.sf, Fm.sf); }}); + 1: acs({{ Fd.sf = acos(Fm.sf); }}); + } + 0xd: decode OPCODE_15 { + 1: atn({{ Fd.sf = atan(Fm.sf); }}); + } + 0xe: decode OPCODE_15 { + // Unnormalised Round + 1: FailUnimpl::urd(); + } + 0xf: decode OPCODE_15 { + // Normalise + 1: FailUnimpl::nrm(); + } + } // OPCODE_23_20 + } // format FloatOp + } // CPNUM + 1: decode CPNUM { // 27-24=1110,4 ==1 + 1: decode OPCODE_15_12 { + format FloatOp { 0xf: decode OPCODE_23_21 { format FloatCmp { 0x4: cmf({{ Fn.df }}, {{ Fm.df }}); @@ -417,36 +477,86 @@ format DataOp { 0x4: FailUnimpl::wfc(); 0x5: FailUnimpl::rfc(); } - } + } // format FloatOp } - } - 0xa: decode MISC_OPCODE { - 0x1: decode MEDIA_OPCODE { - 0xf: decode RN { - 0x0: FloatOp::fmrx_fpsid({{ Rd = Fpsid; }}); - 0x1: FloatOp::fmrx_fpscr({{ Rd = Fpscr; }}); - 0x8: FloatOp::fmrx_fpexc({{ Rd = Fpexc; }}); - } - 0xe: decode RN { - 0x0: FloatOp::fmxr_fpsid({{ Fpsid = Rd; }}); - 0x1: FloatOp::fmxr_fpscr({{ Fpscr = Rd; }}); - 0x8: FloatOp::fmxr_fpexc({{ Fpexc = Rd; }}); + 0xa: decode MISC_OPCODE { + 0x1: decode MEDIA_OPCODE { + 0xf: decode RN { + 0x0: FloatOp::fmrx_fpsid({{ Rd = Fpsid; }}); + 0x1: FloatOp::fmrx_fpscr({{ Rd = Fpscr; }}); + 0x8: FloatOp::fmrx_fpexc({{ Rd = Fpexc; }}); + } + 0xe: decode RN { + 0x0: FloatOp::fmxr_fpsid({{ Fpsid = Rd; }}); + 0x1: FloatOp::fmxr_fpscr({{ Fpscr = Rd; }}); + 0x8: FloatOp::fmxr_fpexc({{ Fpexc = Rd; }}); + } + } // MEDIA_OPCODE (MISC_OPCODE 0x1) + } // MISC_OPCODE (CPNUM 0xA) + 0xf: decode RN { + // Barrriers, Cache Maintence, NOPS + 7: decode OPCODE_23_21 { + 0: decode RM { + 0: decode OPC2 { + 4: decode OPCODE_20 { + 0: PredOp::mcr_cp15_nop1({{ }}); // was wfi + } + } + 1: WarnUnimpl::cp15_cache_maint(); + 4: WarnUnimpl::cp15_par(); + 5: decode OPC2 { + 0,1: WarnUnimpl::cp15_cache_maint2(); + 4: PredOp::cp15_isb({{ ; }}, IsMemBarrier, IsSerializeBefore); + 6,7: WarnUnimpl::cp15_bp_maint(); + } + 6: WarnUnimpl::cp15_cache_maint3(); + 8: WarnUnimpl::cp15_va_to_pa(); + 10: decode OPC2 { + 1,2: WarnUnimpl::cp15_cache_maint3(); + 4: PredOp::cp15_dsb({{ ; }}, IsMemBarrier, IsSerializeBefore); + 5: PredOp::cp15_dmb({{ ; }}, IsMemBarrier, IsSerializeBefore); + } + 11: WarnUnimpl::cp15_cache_maint4(); + 13: decode OPC2 { + 1: decode OPCODE_20 { + 0: PredOp::mcr_cp15_nop2({{ }}); // was prefetch + } + } + 14: WarnUnimpl::cp15_cache_maint5(); + } // RM + } // OPCODE_23_21 CR + + // Thread ID and context ID registers + // Thread ID register needs cheaper access than miscreg + 13: WarnUnimpl::mcr_mrc_cp15_c7(); + + // All the rest + default: decode OPCODE_20 { + 0: PredOp::mcr_cp15({{ + fault = setCp15Register(Rd, RN, OPCODE_23_21, RM, OPC2); + }}); + 1: PredOp::mrc_cp15({{ + fault = readCp15Register(Rd, RN, OPCODE_23_21, RM, OPC2); + }}); } - } + } // RN + } // CPNUM (OP4 == 1) + } //OPCODE_4 + +#if FULL_SYSTEM + 1: PredOp::swi({{ fault = new SupervisorCall; }}, IsSerializeAfter, IsNonSpeculative, IsSyscall); +#else + 1: PredOp::swi({{ if (testPredicate(CondCodes, condCode)) + { + if (IMMED_23_0) + xc->syscall(IMMED_23_0); + else + xc->syscall(R7); } - } - format PredOp { - // ARM System Call (SoftWare Interrupt) - 1: swi({{ if (testPredicate(Cpsr, condCode)) - { - if (IMMED_23_0) - xc->syscall(IMMED_23_0); - else - xc->syscall(R7); - } - }}); - } - } + }}); +#endif // FULL_SYSTEM + } // OPCODE_24 + } } diff --git a/src/arch/arm/isa/formats/branch.isa b/src/arch/arm/isa/formats/branch.isa index 95f4f14e1..5f1b541ff 100644 --- a/src/arch/arm/isa/formats/branch.isa +++ b/src/arch/arm/isa/formats/branch.isa @@ -52,7 +52,7 @@ def format Branch(code,*opt_flags) {{ else: inst_flags += ('IsCondControl', ) - icode = 'if (testPredicate(Cpsr, condCode)) {\n' + icode = 'if (testPredicate(CondCodes, condCode)) {\n' icode += code icode += ' NPC = NPC + 4 + disp;\n' icode += '} else {\n' @@ -90,7 +90,7 @@ def format BranchExchange(code,*opt_flags) {{ #Condition code - icode = 'if (testPredicate(Cpsr, condCode)) {\n' + icode = 'if (testPredicate(CondCodes, condCode)) {\n' icode += code icode += ' NPC = Rm & 0xfffffffe; // Masks off bottom bit\n' icode += '} else {\n' diff --git a/src/arch/arm/isa/formats/fp.isa b/src/arch/arm/isa/formats/fp.isa index e88531580..e79529615 100644 --- a/src/arch/arm/isa/formats/fp.isa +++ b/src/arch/arm/isa/formats/fp.isa @@ -119,8 +119,8 @@ let {{ _ic = %(fReg1)s >= %(fReg2)s; _iv = (isnan(%(fReg1)s) || isnan(%(fReg2)s)) & 1; - Cpsr = _in << 31 | _iz << 30 | _ic << 29 | _iv << 28 | - (Cpsr & 0x0FFFFFFF); + CondCodes = _in << 31 | _iz << 30 | _ic << 29 | _iv << 28 | + (CondCodes & 0x0FFFFFFF); ''' }}; diff --git a/src/arch/arm/isa/formats/macromem.isa b/src/arch/arm/isa/formats/macromem.isa index 355a67ea9..c834c22cb 100644 --- a/src/arch/arm/isa/formats/macromem.isa +++ b/src/arch/arm/isa/formats/macromem.isa @@ -72,6 +72,18 @@ let {{ 'predicate_test': predicateTest}, ['IsMicroop']) + microLdrRetUopCode = ''' + Ra = Mem; + Cpsr = cpsrWriteByInstr(Cpsr, Spsr, 0xF, true); + ''' + microLdrRetUopIop = InstObjParams('ldr_ret_uop', 'MicroLdrRetUop', + 'MicroMemOp', + {'memacc_code': microLdrRetUopCode, + 'ea_code': + 'EA = Rb + (UP ? imm : -imm);', + 'predicate_test': predicateTest}, + ['IsMicroop']) + microStrUopIop = InstObjParams('str_uop', 'MicroStrUop', 'MicroMemOp', {'memacc_code': 'Mem = Ra;', @@ -80,14 +92,19 @@ let {{ ['IsMicroop']) header_output = MicroMemDeclare.subst(microLdrUopIop) + \ + MicroMemDeclare.subst(microLdrRetUopIop) + \ MicroMemDeclare.subst(microStrUopIop) decoder_output = MicroConstructor.subst(microLdrUopIop) + \ + MicroConstructor.subst(microLdrRetUopIop) + \ MicroConstructor.subst(microStrUopIop) exec_output = LoadExecute.subst(microLdrUopIop) + \ + LoadExecute.subst(microLdrRetUopIop) + \ StoreExecute.subst(microStrUopIop) + \ LoadInitiateAcc.subst(microLdrUopIop) + \ + LoadInitiateAcc.subst(microLdrRetUopIop) + \ StoreInitiateAcc.subst(microStrUopIop) + \ LoadCompleteAcc.subst(microLdrUopIop) + \ + LoadCompleteAcc.subst(microLdrRetUopIop) + \ StoreCompleteAcc.subst(microStrUopIop) }}; @@ -178,73 +195,64 @@ inline %(class_name)s::%(class_name)s(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) { %(constructor)s; - uint32_t regs_to_handle = reglist; - uint32_t start_addr = 0; + uint32_t regs = reglist; + uint32_t addr = 0; + bool up = machInst.puswl.up; - switch (puswl) - { - case 0x00: // stmda - case 0x01: // L ldmda_l - case 0x02: // W stmda_w - case 0x03: // WL ldmda_wl - start_addr = (ones << 2) - 4; - break; - case 0x08: // U stmia_u - case 0x09: // U L ldmia_ul - case 0x0a: // U W stmia - case 0x0b: // U WL ldmia - start_addr = 0; - break; - case 0x10: // P stmdb - case 0x11: // P L ldmdb - case 0x12: // P W stmdb - case 0x13: // P WL ldmdb - start_addr = (ones << 2); // U-bit is already 0 for subtract - break; - case 0x18: // PU stmib - case 0x19: // PU L ldmib - case 0x1a: // PU W stmib - case 0x1b: // PU WL ldmib - start_addr = 4; - break; - default: - panic("Unhandled Load/Store Multiple Instruction, " - "puswl = 0x%x", (unsigned) puswl); - break; - } + if (!up) + addr = (ones << 2) - 4; + + if (machInst.puswl.prepost) + addr += 4; - // Add 0 to Rn and stick it in Raddr (register 17). + // Add 0 to Rn and stick it in ureg0. // This is equivalent to a move. - microOps[0] = new MicroAddiUop(machInst, 17, RN, 0); + microOps[0] = new MicroAddiUop(machInst, INTREG_UREG0, RN, 0); - unsigned j = 0; - for (int i = 1; i < ones+1; i++) { - // Get next available bit for transfer - while (! ( regs_to_handle & (1<<j))) - j++; - regs_to_handle &= ~(1<<j); + unsigned reg = 0; + bool force_user = machInst.puswl.psruser & !OPCODE_15; + bool exception_ret = machInst.puswl.psruser & OPCODE_15; - if (loadop) - microOps[i] = new MicroLdrUop(machInst, j, 17, start_addr); - else - microOps[i] = new MicroStrUop(machInst, j, 17, start_addr); + for (int i = 1; i < ones + 1; i++) { + // Find the next register. + while (!bits(regs, reg)) + reg++; + replaceBits(regs, reg, 0); + + unsigned regIdx = reg; + if (force_user) { + regIdx = intRegForceUser(regIdx); + } + + if (machInst.puswl.loadOp) { + if (reg == INTREG_PC && exception_ret) { + // This must be the exception return form of ldm. + microOps[i] = + new MicroLdrRetUop(machInst, regIdx, INTREG_UREG0, addr); + } else { + microOps[i] = + new MicroLdrUop(machInst, regIdx, INTREG_UREG0, addr); + } + } else { + microOps[i] = + new MicroStrUop(machInst, regIdx, INTREG_UREG0, addr); + } if (up) - start_addr += 4; + addr += 4; else - start_addr -= 4; + addr -= 4; } - if (writeback) { + StaticInstPtr &lastUop = microOps[numMicroops - 1]; + if (machInst.puswl.writeback) { if (up) { - microOps[numMicroops-1] = - new MicroAddiUop(machInst, RN, RN, ones * 4); + lastUop = new MicroAddiUop(machInst, RN, RN, ones * 4); } else { - microOps[numMicroops-1] = - new MicroSubiUop(machInst, RN, RN, ones * 4); + lastUop = new MicroSubiUop(machInst, RN, RN, ones * 4); } } - microOps[numMicroops-1]->setLastMicroop(); + lastUop->setLastMicroop(); } }}; @@ -285,14 +293,14 @@ inline %(class_name)s::%(class_name)s(ExtMachInst machInst) if (writeback) { if (up) { - microOps[numMicroops-1] = + microOps[numMicroops - 1] = new MicroAddiUop(machInst, RN, RN, disp8); } else { - microOps[numMicroops-1] = + microOps[numMicroops - 1] = new MicroSubiUop(machInst, RN, RN, disp8); } } - microOps[numMicroops-1]->setLastMicroop(); + microOps[numMicroops - 1]->setLastMicroop(); } }}; @@ -316,14 +324,14 @@ inline %(class_name)s::%(class_name)s(ExtMachInst machInst) if (writeback) { if (up) { - microOps[numMicroops-1] = + microOps[numMicroops - 1] = new MicroAddiUop(machInst, RN, RN, disp8); } else { - microOps[numMicroops-1] = + microOps[numMicroops - 1] = new MicroSubiUop(machInst, RN, RN, disp8); } } - microOps[numMicroops-1]->setLastMicroop(); + microOps[numMicroops - 1]->setLastMicroop(); } }}; diff --git a/src/arch/arm/isa/formats/pred.isa b/src/arch/arm/isa/formats/pred.isa index e90788c91..0d6ee32f7 100644 --- a/src/arch/arm/isa/formats/pred.isa +++ b/src/arch/arm/isa/formats/pred.isa @@ -34,7 +34,7 @@ // let {{ - predicateTest = 'testPredicate(Cpsr, condCode)' + predicateTest = 'testPredicate(CondCodes, condCode)' }}; def template PredOpExecute {{ @@ -81,32 +81,45 @@ def template DataImmDecode {{ }}; let {{ + + calcCcCode = ''' + if (%(canOverflow)s){ + cprintf("canOverflow: %%d\\n", Rd < resTemp); + replaceBits(CondCodes, 27, Rd < resTemp); + } else { + uint16_t _ic, _iv, _iz, _in; + _in = (resTemp >> %(negBit)d) & 1; + _iz = (resTemp == 0); + _iv = %(ivValue)s & 1; + _ic = %(icValue)s & 1; + + CondCodes = _in << 31 | _iz << 30 | _ic << 29 | _iv << 28 | + (CondCodes & 0x0FFFFFFF); - calcCcCode = ''' - uint16_t _ic, _iv, _iz, _in; - - _in = (resTemp >> 31) & 1; - _iz = (resTemp == 0); - _iv = %(ivValue)s & 1; - _ic = %(icValue)s & 1; - - Cpsr = _in << 31 | _iz << 30 | _ic << 29 | _iv << 28 | - (Cpsr & 0x0FFFFFFF); - - DPRINTF(Arm, "in = %%d\\n", _in); - DPRINTF(Arm, "iz = %%d\\n", _iz); - DPRINTF(Arm, "ic = %%d\\n", _ic); - DPRINTF(Arm, "iv = %%d\\n", _iv); + DPRINTF(Arm, "in = %%d\\n", _in); + DPRINTF(Arm, "iz = %%d\\n", _iz); + DPRINTF(Arm, "ic = %%d\\n", _ic); + DPRINTF(Arm, "iv = %%d\\n", _iv); + } ''' - }}; let {{ def getCcCode(flagtype): icReg = icImm = iv = '' + negBit = 31 + canOverflow = 'false' + if flagtype == "none": - icReg = icImm = 'Cpsr<29:>' - iv = 'Cpsr<28:>' + icReg = icImm = 'CondCodes<29:>' + iv = 'CondCodes<28:>' + elif flagtype == "llbit": + icReg = icImm = 'CondCodes<29:>' + iv = 'CondCodes<28:>' + negBit = 63 + elif flagtype == "overflow": + canOverflow = "true" + icReg = icImm = iv = '0' elif flagtype == "add": icReg = icImm = 'findCarry(32, resTemp, Rn, op2)' iv = 'findOverflow(32, resTemp, Rn, op2)' @@ -117,17 +130,32 @@ let {{ icReg = icImm = 'findCarry(32, resTemp, op2, ~Rn)' iv = 'findOverflow(32, resTemp, op2, ~Rn)' else: - icReg = 'shift_carry_rs(Rm, Rs, shift, Cpsr<29:>)' - icImm = 'shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>)' - iv = 'Cpsr<28:>' - return (calcCcCode % {"icValue" : icReg, "ivValue" : iv}, - calcCcCode % {"icValue" : icImm, "ivValue" : iv}) + icReg = 'shift_carry_rs(Rm, Rs<7:0>, shift, CondCodes<29:>)' + icImm = 'shift_carry_imm(Rm, shift_size, shift, CondCodes<29:>)' + iv = 'CondCodes<28:>' + return (calcCcCode % {"icValue" : icReg, + "ivValue" : iv, + "negBit" : negBit, + "canOverflow" : canOverflow }, + calcCcCode % {"icValue" : icImm, + "ivValue" : iv, + "negBit" : negBit, + "canOverflow" : canOverflow }) def getImmCcCode(flagtype): ivValue = icValue = '' + negBit = 31 + canOverflow = 'false' if flagtype == "none": - icValue = 'Cpsr<29:>' - ivValue = 'Cpsr<28:>' + icValue = 'CondCodes<29:>' + ivValue = 'CondCodes<28:>' + elif flagtype == "llbit": + icValue = 'CondCodes<29:>' + ivValue = 'CondCodes<28:>' + negBit = 63 + elif flagtype == "overflow": + icVaule = ivValue = '0' + canOverflow = "true" elif flagtype == "add": icValue = 'findCarry(32, resTemp, Rn, rotated_imm)' ivValue = 'findOverflow(32, resTemp, Rn, rotated_imm)' @@ -138,18 +166,18 @@ let {{ icValue = 'findCarry(32, resTemp, rotated_imm, ~Rn)' ivValue = 'findOverflow(32, resTemp, rotated_imm, ~Rn)' else: - icValue = '(rotate ? rotated_carry:Cpsr<29:>)' - ivValue = 'Cpsr<28:>' + icValue = '(rotate ? rotated_carry:CondCodes<29:>)' + ivValue = 'CondCodes<28:>' return calcCcCode % vars() }}; def format DataOp(code, flagtype = logic) {{ (regCcCode, immCcCode) = getCcCode(flagtype) - regCode = '''uint32_t op2 = shift_rm_rs(Rm, Rs, - shift, Cpsr<29:0>); + regCode = '''uint32_t op2 = shift_rm_rs(Rm, Rs<7:0>, + shift, CondCodes<29:>); op2 = op2;''' + code immCode = '''uint32_t op2 = shift_rm_imm(Rm, shift_size, - shift, Cpsr<29:0>); + shift, CondCodes<29:>); op2 = op2;''' + code regIop = InstObjParams(name, Name, 'PredIntOp', {"code": regCode, diff --git a/src/arch/arm/isa/formats/unimp.isa b/src/arch/arm/isa/formats/unimp.isa index c82bb41c6..6909c3f85 100644 --- a/src/arch/arm/isa/formats/unimp.isa +++ b/src/arch/arm/isa/formats/unimp.isa @@ -115,7 +115,7 @@ output exec {{ panic("attempt to execute unimplemented instruction '%s' " "(inst 0x%08x, opcode 0x%x, binary:%s)", mnemonic, machInst, OPCODE, inst2string(machInst)); - return new UnimplementedOpcodeFault; + return new UnimpFault("Unimplemented Instruction"); } Fault diff --git a/src/arch/arm/isa/formats/unknown.isa b/src/arch/arm/isa/formats/unknown.isa index 2ad7a2506..97a0caa6b 100644 --- a/src/arch/arm/isa/formats/unknown.isa +++ b/src/arch/arm/isa/formats/unknown.isa @@ -74,7 +74,7 @@ output exec {{ { panic("attempt to execute unknown instruction " "(inst 0x%08x, opcode 0x%x, binary: %s)", machInst, OPCODE, inst2string(machInst)); - return new UnimplementedOpcodeFault; + return new UnimpFault("Unimplemented Instruction"); } }}; diff --git a/src/arch/arm/isa/formats/util.isa b/src/arch/arm/isa/formats/util.isa index b5efec568..d42ffb147 100644 --- a/src/arch/arm/isa/formats/util.isa +++ b/src/arch/arm/isa/formats/util.isa @@ -33,8 +33,10 @@ let {{ # Generic substitutions for Arm instructions def ArmGenericCodeSubs(code): # Substitute in the shifted portion of operations - new_code = re.sub(r'Rm_Imm', 'shift_rm_imm(Rm, shift_size, shift, Cpsr<29:>)', code) - new_code = re.sub(r'Rm_Rs', 'shift_rm_rs(Rm, Rs, shift, Cpsr<29:>)', new_code) + new_code = re.sub(r'Rm_Imm', + 'shift_rm_imm(Rm, shift_size, shift, CondCodes<29:>)', code) + new_code = re.sub(r'Rm_Rs', + 'shift_rm_rs(Rm, Rs, shift, CondCodes<29:>)', new_code) return new_code def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, diff --git a/src/arch/arm/isa/operands.isa b/src/arch/arm/isa/operands.isa index ac7427dad..aadefc79c 100644 --- a/src/arch/arm/isa/operands.isa +++ b/src/arch/arm/isa/operands.isa @@ -58,15 +58,16 @@ def operands {{ 'Rs': ('IntReg', 'uw', 'RS', 'IsInteger', 3, maybePCRead, maybePCWrite), 'Rn': ('IntReg', 'uw', 'RN', 'IsInteger', 4, maybePCRead, maybePCWrite), 'R7': ('IntReg', 'uw', '7', 'IsInteger', 5), + 'R0': ('IntReg', 'uw', '0', 'IsInteger', 0), #Destination register for load/store double instructions 'Rdo': ('IntReg', 'uw', '(RD & ~1)', 'IsInteger', 4, maybePCRead, maybePCWrite), 'Rde': ('IntReg', 'uw', '(RD | 1)', 'IsInteger', 5, maybePCRead, maybePCWrite), - 'Raddr': ('IntReg', 'uw', '17', 'IsInteger', 6), - 'Rhi': ('IntReg', 'uw', '18', 'IsInteger', 7), - 'Rlo': ('IntReg', 'uw', '19', 'IsInteger', 8), - 'LR': ('IntReg', 'uw', '14', 'IsInteger', 9), + 'Rhi': ('IntReg', 'uw', 'INTREG_RHI', 'IsInteger', 7), + 'Rlo': ('IntReg', 'uw', 'INTREG_RLO', 'IsInteger', 8), + 'LR': ('IntReg', 'uw', 'INTREG_LR', 'IsInteger', 9), + 'CondCodes': ('IntReg', 'uw', 'INTREG_CONDCODES', 'IsInteger', 10), #Register fields for microops 'Ra' : ('IntReg', 'uw', 'ura', 'IsInteger', 11, maybePCRead, maybePCWrite), @@ -80,12 +81,13 @@ def operands {{ #Memory Operand 'Mem': ('Mem', 'uw', None, ('IsMemRef', 'IsLoad', 'IsStore'), 30), - 'Cpsr': ('ControlReg', 'uw', 'MISCREG_CPSR', 'IsInteger', 40), - 'Fpsr': ('ControlReg', 'uw', 'MISCREG_FPSR', 'IsInteger', 41), - 'Fpsid': ('ControlReg', 'uw', 'MISCREG_FPSID', 'IsInteger', 42), - 'Fpscr': ('ControlReg', 'uw', 'MISCREG_FPSCR', 'IsInteger', 43), - 'Fpexc': ('ControlReg', 'uw', 'MISCREG_FPEXC', 'IsInteger', 44), - 'NPC': ('NPC', 'uw', None, (None, None, 'IsControl'), 45), - 'NNPC': ('NNPC', 'uw', None, (None, None, 'IsControl'), 46) + 'Cpsr': ('ControlReg', 'uw', 'MISCREG_CPSR', (None, None, 'IsControl'), 40), + 'Spsr': ('ControlReg', 'uw', 'MISCREG_SPSR', (None, None, 'IsControl'), 41), + 'Fpsr': ('ControlReg', 'uw', 'MISCREG_FPSR', (None, None, 'IsControl'), 42), + 'Fpsid': ('ControlReg', 'uw', 'MISCREG_FPSID', (None, None, 'IsControl'), 43), + 'Fpscr': ('ControlReg', 'uw', 'MISCREG_FPSCR', (None, None, 'IsControl'), 44), + 'Fpexc': ('ControlReg', 'uw', 'MISCREG_FPEXC', (None, None, 'IsControl'), 45), + 'NPC': ('NPC', 'uw', None, (None, None, 'IsControl'), 50), + 'NNPC': ('NNPC', 'uw', None, (None, None, 'IsControl'), 51) }}; diff --git a/src/arch/arm/isa_traits.hh b/src/arch/arm/isa_traits.hh index 542174b6b..91c51c46b 100644 --- a/src/arch/arm/isa_traits.hh +++ b/src/arch/arm/isa_traits.hh @@ -104,6 +104,8 @@ namespace ArmISA const int WordBytes = 4; const int HalfwordBytes = 2; const int ByteBytes = 1; + + const uint32_t HighVecs = 0xFFFF0000; }; using namespace ArmISA; diff --git a/src/arch/arm/kernel_stats.hh b/src/arch/arm/kernel_stats.hh new file mode 100644 index 000000000..18bdc500d --- /dev/null +++ b/src/arch/arm/kernel_stats.hh @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2004-2005 The Regents of The University of Michigan + * 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 + */ + +#ifndef __ARCH_ARM_KERNEL_STATS_HH__ +#define __ARCH_ARM_KERNEL_STATS_HH__ + +#include <map> +#include <stack> +#include <string> +#include <vector> + +#include "kern/kernel_stats.hh" + +namespace ArmISA { +namespace Kernel { + +enum cpu_mode { hypervisor, kernel, user, idle, cpu_mode_num }; +extern const char *modestr[]; + +class Statistics : public ::Kernel::Statistics +{ + public: + Statistics(System *system) : ::Kernel::Statistics(system) + {} +}; + +} /* end namespace ArmISA::Kernel */ +} /* end namespace ArmISA */ + +#endif // __ARCH_ARM_KERNEL_STATS_HH__ diff --git a/src/arch/arm/linux/linux.hh b/src/arch/arm/linux/linux.hh index d99fa8e49..f829dd7c6 100644 --- a/src/arch/arm/linux/linux.hh +++ b/src/arch/arm/linux/linux.hh @@ -86,6 +86,7 @@ class ArmLinux : public Linux static const unsigned TIOCISATTY_ = 0x2000745e; static const unsigned TIOCGETS_ = 0x402c7413; static const unsigned TIOCGETA_ = 0x40127417; + static const unsigned TCSETAW_ = 0x5407; // 2.6.15 kernel //@} /// For table(). @@ -147,6 +148,21 @@ class ArmLinux : public Linux uint64_t st_ino; } tgt_stat64; + typedef struct { + int32_t uptime; /* Seconds since boot */ + uint32_t loads[3]; /* 1, 5, and 15 minute load averages */ + uint32_t totalram; /* Total usable main memory size */ + uint32_t freeram; /* Available memory size */ + uint32_t sharedram; /* Amount of shared memory */ + uint32_t bufferram; /* Memory used by buffers */ + uint32_t totalswap; /* Total swap space size */ + uint32_t freeswap; /* swap space still available */ + uint16_t procs; /* Number of current processes */ + uint32_t totalhigh; /* Total high memory size */ + uint32_t freehigh; /* Available high memory size */ + uint32_t mem_unit; /* Memory unit size in bytes */ + } tgt_sysinfo; + }; diff --git a/src/arch/arm/linux/process.cc b/src/arch/arm/linux/process.cc index 56e3588a7..f909d871a 100644 --- a/src/arch/arm/linux/process.cc +++ b/src/arch/arm/linux/process.cc @@ -50,7 +50,8 @@ static SyscallReturn unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, 0)); + int index = 0; + TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index)); strcpy(name->sysname, "Linux"); strcpy(name->nodename, "m5.eecs.umich.edu"); @@ -179,7 +180,7 @@ SyscallDesc ArmLinuxProcess::syscallDescs[] = { /* 113 */ SyscallDesc("vm86", unimplementedFunc), /* 114 */ SyscallDesc("wait4", unimplementedFunc), /* 115 */ SyscallDesc("swapoff", unimplementedFunc), - /* 116 */ SyscallDesc("sysinfo", unimplementedFunc), + /* 116 */ SyscallDesc("sysinfo", sysinfoFunc<ArmLinux>), /* 117 */ SyscallDesc("ipc", unimplementedFunc), /* 118 */ SyscallDesc("fsync", unimplementedFunc), /* 119 */ SyscallDesc("sigreturn", unimplementedFunc), @@ -417,7 +418,8 @@ static SyscallReturn setTLSFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - uint32_t tlsPtr = process->getSyscallArg(tc, 0); + int index = 0; + uint32_t tlsPtr = process->getSyscallArg(tc, index); tc->getMemPort()->writeBlob(ArmLinuxProcess::commPage + 0x0ff0, (uint8_t *)&tlsPtr, sizeof(tlsPtr)); @@ -511,12 +513,12 @@ ArmLinuxProcess::startup() } ArmISA::IntReg -ArmLinuxProcess::getSyscallArg(ThreadContext *tc, int i) +ArmLinuxProcess::getSyscallArg(ThreadContext *tc, int &i) { // Linux apparently allows more parameter than the ABI says it should. // This limit may need to be increased even further. assert(i < 6); - return tc->readIntReg(ArgumentReg0 + i); + return tc->readIntReg(ArgumentReg0 + i++); } void diff --git a/src/arch/arm/linux/process.hh b/src/arch/arm/linux/process.hh index 53b3781d2..ab836fab2 100644 --- a/src/arch/arm/linux/process.hh +++ b/src/arch/arm/linux/process.hh @@ -44,7 +44,7 @@ class ArmLinuxProcess : public ArmLiveProcess void startup(); - ArmISA::IntReg getSyscallArg(ThreadContext *tc, int i); + ArmISA::IntReg getSyscallArg(ThreadContext *tc, int &i); void setSyscallArg(ThreadContext *tc, int i, ArmISA::IntReg val); /// The target system's hostname. diff --git a/src/arch/arm/miscregs.hh b/src/arch/arm/miscregs.hh index 3180669de..d100efb8e 100644 --- a/src/arch/arm/miscregs.hh +++ b/src/arch/arm/miscregs.hh @@ -55,23 +55,24 @@ namespace ArmISA enum MiscRegIndex { MISCREG_CPSR = 0, - MISCREG_SPSR, + MISCREG_SPSR, MISCREG_SPSR_FIQ, MISCREG_SPSR_IRQ, MISCREG_SPSR_SVC, + MISCREG_SPSR_MON, MISCREG_SPSR_UND, MISCREG_SPSR_ABT, MISCREG_FPSR, MISCREG_FPSID, MISCREG_FPSCR, MISCREG_FPEXC, - NUM_MISCREGS + MISCREG_SCTLR, + NUM_MISCREGS }; const char * const miscRegName[NUM_MISCREGS] = { - "cpsr", - "spsr", "spsr_fiq", "spsr_irq", "spsr_svc", "spsr_und", "spsr_abt", - "fpsr" + "cpsr", "spsr", "spsr_fiq", "spsr_irq", "spsr_svc", "spsr_und", + "spsr_abt", "fpsr", "fpsid", "fpscr", "fpexc", "sctlr" }; BitUnion32(CPSR) @@ -80,8 +81,10 @@ namespace ArmISA Bitfield<29> c; Bitfield<28> v; Bitfield<27> q; + Bitfield<26,25> it1; Bitfield<24> j; Bitfield<19, 16> ge; + Bitfield<15,10> it2; Bitfield<9> e; Bitfield<8> a; Bitfield<7> i; @@ -89,6 +92,35 @@ namespace ArmISA Bitfield<5> t; Bitfield<4, 0> mode; EndBitUnion(CPSR) + + // This mask selects bits of the CPSR that actually go in the CondCodes + // integer register to allow renaming. + static const uint32_t CondCodesMask = 0xF80F0000; + + BitUnion32(SCTLR) + Bitfield<30> te; // Thumb Exception Enable + Bitfield<29> afe; // Access flag enable + Bitfield<28> tre; // TEX Remap bit + Bitfield<27> nmfi;// Non-maskable fast interrupts enable + Bitfield<25> ee; // Exception Endianness bit + Bitfield<24> ve; // Interrupt vectors enable + Bitfield<23> rao1;// Read as one + Bitfield<22> u; // Alignment (now unused) + Bitfield<21> fi; // Fast interrupts configuration enable + Bitfield<18> rao2;// Read as one + Bitfield<17> ha; // Hardware access flag enable + Bitfield<16> rao3;// Read as one + Bitfield<14> rr; // Round robin cache replacement + Bitfield<13> v; // Base address for exception vectors + Bitfield<12> i; // instruction cache enable + Bitfield<11> z; // branch prediction enable bit + Bitfield<10> sw; // Enable swp/swpb + Bitfield<6,3> rao4;// Read as one + Bitfield<7> b; // Endianness support (unused) + Bitfield<2> c; // Cache enable bit + Bitfield<1> a; // Alignment fault checking + Bitfield<0> m; // MMU enable bit + EndBitUnion(SCTLR) }; #endif // __ARCH_ARM_MISCREGS_HH__ diff --git a/src/arch/arm/nativetrace.cc b/src/arch/arm/nativetrace.cc index 1ad9e1a19..01f3205eb 100644 --- a/src/arch/arm/nativetrace.cc +++ b/src/arch/arm/nativetrace.cc @@ -97,7 +97,8 @@ Trace::ArmNativeTrace::ThreadState::update(ThreadContext *tc) changed[STATE_PC] = (newState[STATE_PC] != oldState[STATE_PC]); //CPSR - newState[STATE_CPSR] = tc->readMiscReg(MISCREG_CPSR); + newState[STATE_CPSR] = tc->readMiscReg(MISCREG_CPSR) | + tc->readIntReg(INTREG_CONDCODES); changed[STATE_CPSR] = (newState[STATE_CPSR] != oldState[STATE_CPSR]); } diff --git a/src/arch/arm/process.cc b/src/arch/arm/process.cc index cd7cc9736..702922a43 100644 --- a/src/arch/arm/process.cc +++ b/src/arch/arm/process.cc @@ -324,10 +324,10 @@ ArmLiveProcess::argsInit(int intSize, int pageSize) } ArmISA::IntReg -ArmLiveProcess::getSyscallArg(ThreadContext *tc, int i) +ArmLiveProcess::getSyscallArg(ThreadContext *tc, int &i) { assert(i < 4); - return tc->readIntReg(ArgumentReg0 + i); + return tc->readIntReg(ArgumentReg0 + i++); } void diff --git a/src/arch/arm/process.hh b/src/arch/arm/process.hh index 8954d3719..f793892d0 100644 --- a/src/arch/arm/process.hh +++ b/src/arch/arm/process.hh @@ -53,7 +53,7 @@ class ArmLiveProcess : public LiveProcess public: void argsInit(int intSize, int pageSize); - ArmISA::IntReg getSyscallArg(ThreadContext *tc, int i); + ArmISA::IntReg getSyscallArg(ThreadContext *tc, int &i); void setSyscallArg(ThreadContext *tc, int i, ArmISA::IntReg val); void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); }; diff --git a/src/arch/arm/registers.hh b/src/arch/arm/registers.hh index 7f9b6b828..41bbf4e7f 100644 --- a/src/arch/arm/registers.hh +++ b/src/arch/arm/registers.hh @@ -32,6 +32,7 @@ #define __ARCH_ARM_REGISTERS_HH__ #include "arch/arm/max_inst_regs.hh" +#include "arch/arm/intregs.hh" #include "arch/arm/miscregs.hh" namespace ArmISA { @@ -51,13 +52,11 @@ typedef float FloatReg; typedef uint64_t MiscReg; // Constants Related to the number of registers -const int NumIntArchRegs = 16; -const int NumIntSpecialRegs = 19; +const int NumIntArchRegs = NUM_ARCH_INTREGS; const int NumFloatArchRegs = 16; const int NumFloatSpecialRegs = 5; -const int NumInternalProcRegs = 0; -const int NumIntRegs = NumIntArchRegs + NumIntSpecialRegs; +const int NumIntRegs = NUM_INTREGS; const int NumFloatRegs = NumFloatArchRegs + NumFloatSpecialRegs; const int NumMiscRegs = NUM_MISCREGS; @@ -72,12 +71,11 @@ const int ArgumentReg1 = 1; const int ArgumentReg2 = 2; const int ArgumentReg3 = 3; const int FramePointerReg = 11; -const int StackPointerReg = 13; -const int ReturnAddressReg = 14; -const int PCReg = 15; +const int StackPointerReg = INTREG_SP; +const int ReturnAddressReg = INTREG_LR; +const int PCReg = INTREG_PC; -const int ZeroReg = NumIntArchRegs; -const int AddrReg = ZeroReg + 1; // Used to generate address for uops +const int ZeroReg = INTREG_ZERO; const int SyscallNumReg = ReturnValueReg; const int SyscallPseudoReturnReg = ReturnValueReg; @@ -116,35 +114,6 @@ enum FCSRFields { Cause_Field = 11 }; -enum MiscIntRegNums { - zero_reg = NumIntArchRegs, - addr_reg, - - rhi, - rlo, - - r8_fiq, /* FIQ mode register bank */ - r9_fiq, - r10_fiq, - r11_fiq, - r12_fiq, - - r13_fiq, /* FIQ mode SP and LR */ - r14_fiq, - - r13_irq, /* IRQ mode SP and LR */ - r14_irq, - - r13_svc, /* SVC mode SP and LR */ - r14_svc, - - r13_undef, /* UNDEF mode SP and LR */ - r14_undef, - - r13_abt, /* ABT mode SP and LR */ - r14_abt -}; - } // namespace ArmISA #endif diff --git a/src/arch/arm/stacktrace.cc b/src/arch/arm/stacktrace.cc new file mode 100644 index 000000000..6b346b0ab --- /dev/null +++ b/src/arch/arm/stacktrace.cc @@ -0,0 +1,151 @@ +/* + * Copyright (c) 2005 The Regents of The University of Michigan + * 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: Nathan Binkert + */ + +#include <string> + +#include "arch/arm/isa_traits.hh" +#include "arch/arm/stacktrace.hh" +#include "arch/arm/vtophys.hh" +#include "base/bitfield.hh" +#include "base/trace.hh" +#include "cpu/base.hh" +#include "cpu/thread_context.hh" +#include "sim/system.hh" + +using namespace std; +namespace ArmISA +{ + ProcessInfo::ProcessInfo(ThreadContext *_tc) + : tc(_tc) + { + Addr addr = 0; + + VirtualPort *vp; + + vp = tc->getVirtPort(); + + if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_size", addr)) + panic("thread info not compiled into kernel\n"); + thread_info_size = vp->readGtoH<int32_t>(addr); + + if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_size", addr)) + panic("thread info not compiled into kernel\n"); + task_struct_size = vp->readGtoH<int32_t>(addr); + + if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_task", addr)) + panic("thread info not compiled into kernel\n"); + task_off = vp->readGtoH<int32_t>(addr); + + if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_pid", addr)) + panic("thread info not compiled into kernel\n"); + pid_off = vp->readGtoH<int32_t>(addr); + + if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_comm", addr)) + panic("thread info not compiled into kernel\n"); + name_off = vp->readGtoH<int32_t>(addr); + } + + Addr + ProcessInfo::task(Addr ksp) const + { + return 0; + } + + int + ProcessInfo::pid(Addr ksp) const + { + return -1; + } + + string + ProcessInfo::name(Addr ksp) const + { + return "Implement me"; + } + + StackTrace::StackTrace() + : tc(0), stack(64) + { + } + + StackTrace::StackTrace(ThreadContext *_tc, StaticInstPtr inst) + : tc(0), stack(64) + { + trace(_tc, inst); + } + + StackTrace::~StackTrace() + { + } + + void + StackTrace::trace(ThreadContext *_tc, bool is_call) + { + } + + bool + StackTrace::isEntry(Addr addr) + { + return false; + } + + bool + StackTrace::decodeStack(MachInst inst, int &disp) + { + return false; + } + + bool + StackTrace::decodeSave(MachInst inst, int ®, int &disp) + { + return false; + } + + /* + * Decode the function prologue for the function we're in, and note + * which registers are stored where, and how large the stack frame is. + */ + bool + StackTrace::decodePrologue(Addr sp, Addr callpc, Addr func, + int &size, Addr &ra) + { + return false; + } + +#if TRACING_ON + void + StackTrace::dump() + { + DPRINTFN("------ Stack ------\n"); + + DPRINTFN(" Not implemented\n"); + } +#endif +} diff --git a/src/arch/arm/stacktrace.hh b/src/arch/arm/stacktrace.hh index 3f9c91096..05fdb9e78 100644 --- a/src/arch/arm/stacktrace.hh +++ b/src/arch/arm/stacktrace.hh @@ -1,6 +1,5 @@ /* * Copyright (c) 2005 The Regents of The University of Michigan - * Copyright (c) 2007-2008 The Florida State University * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -26,8 +25,7 @@ * (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: Ali Saidi - * Stephen Hines + * Authors: Nathan Binkert */ #ifndef __ARCH_ARM_STACKTRACE_HH__ @@ -37,11 +35,11 @@ #include "cpu/static_inst.hh" class ThreadContext; -class StackTrace; - namespace ArmISA { +class StackTrace; + class ProcessInfo { private: @@ -64,7 +62,7 @@ class ProcessInfo class StackTrace { protected: - typedef TheISA::MachInst MachInst; + typedef ArmISA::MachInst MachInst; private: ThreadContext *tc; std::vector<Addr> stack; @@ -94,10 +92,6 @@ class StackTrace public: const std::vector<Addr> &getstack() const { return stack; } - static const int user = 1; - static const int console = 2; - static const int unknown = 3; - #if TRACING_ON private: void dump(); @@ -123,6 +117,6 @@ StackTrace::trace(ThreadContext *tc, StaticInstPtr inst) return true; } -} +} // Namespace ArmISA #endif // __ARCH_ARM_STACKTRACE_HH__ diff --git a/src/arch/arm/system.cc b/src/arch/arm/system.cc new file mode 100644 index 000000000..e7470f89a --- /dev/null +++ b/src/arch/arm/system.cc @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2002-2006 The Regents of The University of Michigan + * 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: Ali Saidi + */ + +#include "arch/arm/system.hh" + + +using namespace LittleEndianGuest; + +ArmSystem::ArmSystem(Params *p) + : System(p) +{ + +} + +ArmSystem::~ArmSystem() +{ +} + + +ArmSystem * +ArmSystemParams::create() +{ + return new ArmSystem(this); +} diff --git a/src/arch/arm/system.hh b/src/arch/arm/system.hh new file mode 100644 index 000000000..9dfb66fb7 --- /dev/null +++ b/src/arch/arm/system.hh @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2002-2005 The Regents of The University of Michigan + * 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: Ali Saidi + */ + +#ifndef __ARCH_ARM_SYSTEM_HH__ +#define __ARCH_ARM_SYSTEM_HH__ + +#include <string> +#include <vector> + +#include "params/ArmSystem.hh" +#include "sim/sim_object.hh" +#include "sim/system.hh" + +class ArmSystem : public System +{ + public: + typedef ArmSystemParams Params; + ArmSystem(Params *p); + ~ArmSystem(); + + virtual Addr fixFuncEventAddr(Addr addr) + { + //XXX This may eventually have to do something useful. + return addr; + } +}; + +#endif + diff --git a/src/arch/arm/tlb.cc b/src/arch/arm/tlb.cc index febc6d081..864c061a2 100644 --- a/src/arch/arm/tlb.cc +++ b/src/arch/arm/tlb.cc @@ -287,7 +287,15 @@ TLB::translateAtomic(RequestPtr req, ThreadContext *tc, Mode mode) return NoFault; #else - fatal("translate atomic not yet implemented\n"); + SCTLR sctlr = tc->readMiscReg(MISCREG_SCTLR); + if (!sctlr.m) { + req->setPaddr(req->getVaddr()); + return NoFault; + } + panic("MMU translation not implemented\n"); + return NoFault; + + #endif } diff --git a/src/arch/arm/types.hh b/src/arch/arm/types.hh index 2c4e1291c..e0b3951b9 100644 --- a/src/arch/arm/types.hh +++ b/src/arch/arm/types.hh @@ -45,16 +45,20 @@ namespace ArmISA // All the different types of opcode fields. Bitfield<27, 25> encoding; + Bitfield<25> useImm; Bitfield<24, 21> opcode; Bitfield<24, 20> mediaOpcode; Bitfield<24> opcode24; Bitfield<23, 20> opcode23_20; Bitfield<23, 21> opcode23_21; + Bitfield<20> opcode20; Bitfield<22> opcode22; Bitfield<19> opcode19; + Bitfield<18> opcode18; Bitfield<15, 12> opcode15_12; Bitfield<15> opcode15; Bitfield<7, 4> miscOpcode; + Bitfield<7,5> opc2; Bitfield<7> opcode7; Bitfield<4> opcode4; @@ -156,6 +160,7 @@ namespace ArmISA MODE_FIQ = 17, MODE_IRQ = 18, MODE_SVC = 19, + MODE_MON = 22, MODE_ABORT = 23, MODE_UNDEFINED = 27, MODE_SYSTEM = 31 diff --git a/src/arch/arm/utility.cc b/src/arch/arm/utility.cc new file mode 100644 index 000000000..5ce32542b --- /dev/null +++ b/src/arch/arm/utility.cc @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2009 ARM Limited + * 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: Ali Saidi + */ + + +#include "arch/arm/faults.hh" +#include "arch/arm/utility.hh" +#include "cpu/thread_context.hh" + + +namespace ArmISA { + +void +initCPU(ThreadContext *tc, int cpuId) +{ + // Reset CP15?? What does that mean -- ali + + // FPEXC.EN = 0 + + static Fault reset = new Reset; + if (cpuId == 0) + reset->invoke(tc); +} + +uint64_t getArgument(ThreadContext *tc, int number, bool fp) { +#if FULL_SYSTEM + panic("getArgument() not implemented for ARM!\n"); +#else + panic("getArgument() only implemented for FULL_SYSTEM\n"); + M5_DUMMY_RETURN +#endif +} + +Fault +setCp15Register(uint32_t &Rd, int CRn, int opc1, int CRm, int opc2) +{ + return new UnimpFault(csprintf("MCR CP15: CRn: %d opc1: %d CRm: %d opc1: %d\n", + CRn, opc1, CRm, opc2)); +} + +Fault +readCp15Register(uint32_t &Rd, int CRn, int opc1, int CRm, int opc2) +{ + return new UnimpFault(csprintf("MRC CP15: CRn: %d opc1: %d CRm: %d opc1: %d\n", + CRn, opc1, CRm, opc2)); + +} + + +} diff --git a/src/arch/arm/utility.hh b/src/arch/arm/utility.hh index a2f0ef170..3ddfd12dd 100644 --- a/src/arch/arm/utility.hh +++ b/src/arch/arm/utility.hh @@ -125,6 +125,20 @@ namespace ArmISA { { panic("Copy Misc. Regs Not Implemented Yet\n"); } + + void initCPU(ThreadContext *tc, int cpuId); + + static inline bool + inUserMode(ThreadContext *tc) + { + return (tc->readMiscRegNoEffect(MISCREG_CPSR) & 0x1f) == MODE_USER; + } + +uint64_t getArgument(ThreadContext *tc, int number, bool fp); + +Fault setCp15Register(uint32_t &Rd, int CRn, int opc1, int CRm, int opc2); +Fault readCp15Register(uint32_t &Rd, int CRn, int opc1, int CRm, int opc2); + }; diff --git a/src/arch/isa_parser.py b/src/arch/isa_parser.py index d5b5bbe4f..2db7c6aa6 100755 --- a/src/arch/isa_parser.py +++ b/src/arch/isa_parser.py @@ -34,702 +34,704 @@ import traceback # get type names from types import * -# Prepend the directory where the PLY lex & yacc modules are found -# to the search path. Assumes we're compiling in a subdirectory -# of 'build' in the current tree. -sys.path[0:0] = [os.environ['M5_PLY']] - -from ply import lex -from ply import yacc - -##################################################################### -# -# Lexer -# -# The PLY lexer module takes two things as input: -# - A list of token names (the string list 'tokens') -# - A regular expression describing a match for each token. The -# regexp for token FOO can be provided in two ways: -# - as a string variable named t_FOO -# - as the doc string for a function named t_FOO. In this case, -# the function is also executed, allowing an action to be -# associated with each token match. -# -##################################################################### - -# Reserved words. These are listed separately as they are matched -# using the same regexp as generic IDs, but distinguished in the -# t_ID() function. The PLY documentation suggests this approach. -reserved = ( - 'BITFIELD', 'DECODE', 'DECODER', 'DEFAULT', 'DEF', 'EXEC', 'FORMAT', - 'HEADER', 'LET', 'NAMESPACE', 'OPERAND_TYPES', 'OPERANDS', - 'OUTPUT', 'SIGNED', 'TEMPLATE' +from m5.util.grammar import Grammar + +class ISAParser(Grammar): + def __init__(self, *args, **kwargs): + super(ISAParser, self).__init__(*args, **kwargs) + self.templateMap = {} + + ##################################################################### + # + # Lexer + # + # The PLY lexer module takes two things as input: + # - A list of token names (the string list 'tokens') + # - A regular expression describing a match for each token. The + # regexp for token FOO can be provided in two ways: + # - as a string variable named t_FOO + # - as the doc string for a function named t_FOO. In this case, + # the function is also executed, allowing an action to be + # associated with each token match. + # + ##################################################################### + + # Reserved words. These are listed separately as they are matched + # using the same regexp as generic IDs, but distinguished in the + # t_ID() function. The PLY documentation suggests this approach. + reserved = ( + 'BITFIELD', 'DECODE', 'DECODER', 'DEFAULT', 'DEF', 'EXEC', 'FORMAT', + 'HEADER', 'LET', 'NAMESPACE', 'OPERAND_TYPES', 'OPERANDS', + 'OUTPUT', 'SIGNED', 'TEMPLATE' + ) + + # List of tokens. The lex module requires this. + tokens = reserved + ( + # identifier + 'ID', + + # integer literal + 'INTLIT', + + # string literal + 'STRLIT', + + # code literal + 'CODELIT', + + # ( ) [ ] { } < > , ; . : :: * + 'LPAREN', 'RPAREN', + 'LBRACKET', 'RBRACKET', + 'LBRACE', 'RBRACE', + 'LESS', 'GREATER', 'EQUALS', + 'COMMA', 'SEMI', 'DOT', 'COLON', 'DBLCOLON', + 'ASTERISK', + + # C preprocessor directives + 'CPPDIRECTIVE' + + # The following are matched but never returned. commented out to + # suppress PLY warning + # newfile directive + # 'NEWFILE', + + # endfile directive + # 'ENDFILE' ) -# List of tokens. The lex module requires this. -tokens = reserved + ( - # identifier - 'ID', - - # integer literal - 'INTLIT', - - # string literal - 'STRLIT', - - # code literal - 'CODELIT', - - # ( ) [ ] { } < > , ; . : :: * - 'LPAREN', 'RPAREN', - 'LBRACKET', 'RBRACKET', - 'LBRACE', 'RBRACE', - 'LESS', 'GREATER', 'EQUALS', - 'COMMA', 'SEMI', 'DOT', 'COLON', 'DBLCOLON', - 'ASTERISK', - - # C preprocessor directives - 'CPPDIRECTIVE' - -# The following are matched but never returned. commented out to -# suppress PLY warning - # newfile directive -# 'NEWFILE', - - # endfile directive -# 'ENDFILE' -) - -# Regular expressions for token matching -t_LPAREN = r'\(' -t_RPAREN = r'\)' -t_LBRACKET = r'\[' -t_RBRACKET = r'\]' -t_LBRACE = r'\{' -t_RBRACE = r'\}' -t_LESS = r'\<' -t_GREATER = r'\>' -t_EQUALS = r'=' -t_COMMA = r',' -t_SEMI = r';' -t_DOT = r'\.' -t_COLON = r':' -t_DBLCOLON = r'::' -t_ASTERISK = r'\*' - -# Identifiers and reserved words -reserved_map = { } -for r in reserved: - reserved_map[r.lower()] = r - -def t_ID(t): - r'[A-Za-z_]\w*' - t.type = reserved_map.get(t.value,'ID') - return t - -# Integer literal -def t_INTLIT(t): - r'(0x[\da-fA-F]+)|\d+' - try: - t.value = int(t.value,0) - except ValueError: - error(t.lexer.lineno, 'Integer value "%s" too large' % t.value) - t.value = 0 - return t - -# String literal. Note that these use only single quotes, and -# can span multiple lines. -def t_STRLIT(t): - r"(?m)'([^'])+'" - # strip off quotes - t.value = t.value[1:-1] - t.lexer.lineno += t.value.count('\n') - return t - - -# "Code literal"... like a string literal, but delimiters are -# '{{' and '}}' so they get formatted nicely under emacs c-mode -def t_CODELIT(t): - r"(?m)\{\{([^\}]|}(?!\}))+\}\}" - # strip off {{ & }} - t.value = t.value[2:-2] - t.lexer.lineno += t.value.count('\n') - return t - -def t_CPPDIRECTIVE(t): - r'^\#[^\#].*\n' - t.lexer.lineno += t.value.count('\n') - return t - -def t_NEWFILE(t): - r'^\#\#newfile\s+"[\w/.-]*"' - fileNameStack.push((t.value[11:-1], t.lexer.lineno)) - t.lexer.lineno = 0 - -def t_ENDFILE(t): - r'^\#\#endfile' - (old_filename, t.lexer.lineno) = fileNameStack.pop() - -# -# The functions t_NEWLINE, t_ignore, and t_error are -# special for the lex module. -# - -# Newlines -def t_NEWLINE(t): - r'\n+' - t.lexer.lineno += t.value.count('\n') - -# Comments -def t_comment(t): - r'//.*' - -# Completely ignored characters -t_ignore = ' \t\x0c' - -# Error handler -def t_error(t): - error(t.lexer.lineno, "illegal character '%s'" % t.value[0]) - t.skip(1) - -# Build the lexer -lexer = lex.lex() - -##################################################################### -# -# Parser -# -# Every function whose name starts with 'p_' defines a grammar rule. -# The rule is encoded in the function's doc string, while the -# function body provides the action taken when the rule is matched. -# The argument to each function is a list of the values of the -# rule's symbols: t[0] for the LHS, and t[1..n] for the symbols -# on the RHS. For tokens, the value is copied from the t.value -# attribute provided by the lexer. For non-terminals, the value -# is assigned by the producing rule; i.e., the job of the grammar -# rule function is to set the value for the non-terminal on the LHS -# (by assigning to t[0]). -##################################################################### - -# The LHS of the first grammar rule is used as the start symbol -# (in this case, 'specification'). Note that this rule enforces -# that there will be exactly one namespace declaration, with 0 or more -# global defs/decls before and after it. The defs & decls before -# the namespace decl will be outside the namespace; those after -# will be inside. The decoder function is always inside the namespace. -def p_specification(t): - 'specification : opt_defs_and_outputs name_decl opt_defs_and_outputs decode_block' - global_code = t[1] - isa_name = t[2] - namespace = isa_name + "Inst" - # wrap the decode block as a function definition - t[4].wrap_decode_block(''' + # Regular expressions for token matching + t_LPAREN = r'\(' + t_RPAREN = r'\)' + t_LBRACKET = r'\[' + t_RBRACKET = r'\]' + t_LBRACE = r'\{' + t_RBRACE = r'\}' + t_LESS = r'\<' + t_GREATER = r'\>' + t_EQUALS = r'=' + t_COMMA = r',' + t_SEMI = r';' + t_DOT = r'\.' + t_COLON = r':' + t_DBLCOLON = r'::' + t_ASTERISK = r'\*' + + # Identifiers and reserved words + reserved_map = { } + for r in reserved: + reserved_map[r.lower()] = r + + def t_ID(self, t): + r'[A-Za-z_]\w*' + t.type = self.reserved_map.get(t.value, 'ID') + return t + + # Integer literal + def t_INTLIT(self, t): + r'(0x[\da-fA-F]+)|\d+' + try: + t.value = int(t.value,0) + except ValueError: + error(t.lexer.lineno, 'Integer value "%s" too large' % t.value) + t.value = 0 + return t + + # String literal. Note that these use only single quotes, and + # can span multiple lines. + def t_STRLIT(self, t): + r"(?m)'([^'])+'" + # strip off quotes + t.value = t.value[1:-1] + t.lexer.lineno += t.value.count('\n') + return t + + + # "Code literal"... like a string literal, but delimiters are + # '{{' and '}}' so they get formatted nicely under emacs c-mode + def t_CODELIT(self, t): + r"(?m)\{\{([^\}]|}(?!\}))+\}\}" + # strip off {{ & }} + t.value = t.value[2:-2] + t.lexer.lineno += t.value.count('\n') + return t + + def t_CPPDIRECTIVE(self, t): + r'^\#[^\#].*\n' + t.lexer.lineno += t.value.count('\n') + return t + + def t_NEWFILE(self, t): + r'^\#\#newfile\s+"[\w/.-]*"' + fileNameStack.push((t.value[11:-1], t.lexer.lineno)) + t.lexer.lineno = 0 + + def t_ENDFILE(self, t): + r'^\#\#endfile' + (old_filename, t.lexer.lineno) = fileNameStack.pop() + + # + # The functions t_NEWLINE, t_ignore, and t_error are + # special for the lex module. + # + + # Newlines + def t_NEWLINE(self, t): + r'\n+' + t.lexer.lineno += t.value.count('\n') + + # Comments + def t_comment(self, t): + r'//.*' + + # Completely ignored characters + t_ignore = ' \t\x0c' + + # Error handler + def t_error(self, t): + error(t.lexer.lineno, "illegal character '%s'" % t.value[0]) + t.skip(1) + + ##################################################################### + # + # Parser + # + # Every function whose name starts with 'p_' defines a grammar + # rule. The rule is encoded in the function's doc string, while + # the function body provides the action taken when the rule is + # matched. The argument to each function is a list of the values + # of the rule's symbols: t[0] for the LHS, and t[1..n] for the + # symbols on the RHS. For tokens, the value is copied from the + # t.value attribute provided by the lexer. For non-terminals, the + # value is assigned by the producing rule; i.e., the job of the + # grammar rule function is to set the value for the non-terminal + # on the LHS (by assigning to t[0]). + ##################################################################### + + # The LHS of the first grammar rule is used as the start symbol + # (in this case, 'specification'). Note that this rule enforces + # that there will be exactly one namespace declaration, with 0 or + # more global defs/decls before and after it. The defs & decls + # before the namespace decl will be outside the namespace; those + # after will be inside. The decoder function is always inside the + # namespace. + def p_specification(self, t): + 'specification : opt_defs_and_outputs name_decl opt_defs_and_outputs decode_block' + global_code = t[1] + isa_name = t[2] + namespace = isa_name + "Inst" + # wrap the decode block as a function definition + t[4].wrap_decode_block(''' StaticInstPtr %(isa_name)s::decodeInst(%(isa_name)s::ExtMachInst machInst) { using namespace %(namespace)s; ''' % vars(), '}') - # both the latter output blocks and the decode block are in the namespace - namespace_code = t[3] + t[4] - # pass it all back to the caller of yacc.parse() - t[0] = (isa_name, namespace, global_code, namespace_code) - -# ISA name declaration looks like "namespace <foo>;" -def p_name_decl(t): - 'name_decl : NAMESPACE ID SEMI' - t[0] = t[2] - -# 'opt_defs_and_outputs' is a possibly empty sequence of -# def and/or output statements. -def p_opt_defs_and_outputs_0(t): - 'opt_defs_and_outputs : empty' - t[0] = GenCode() - -def p_opt_defs_and_outputs_1(t): - 'opt_defs_and_outputs : defs_and_outputs' - t[0] = t[1] - -def p_defs_and_outputs_0(t): - 'defs_and_outputs : def_or_output' - t[0] = t[1] - -def p_defs_and_outputs_1(t): - 'defs_and_outputs : defs_and_outputs def_or_output' - t[0] = t[1] + t[2] - -# The list of possible definition/output statements. -def p_def_or_output(t): - '''def_or_output : def_format - | def_bitfield - | def_bitfield_struct - | def_template - | def_operand_types - | def_operands - | output_header - | output_decoder - | output_exec - | global_let''' - t[0] = t[1] - -# Output blocks 'output <foo> {{...}}' (C++ code blocks) are copied -# directly to the appropriate output section. - - -# Protect any non-dict-substitution '%'s in a format string -# (i.e. those not followed by '(') -def protect_non_subst_percents(s): - return re.sub(r'%(?!\()', '%%', s) - -# Massage output block by substituting in template definitions and bit -# operators. We handle '%'s embedded in the string that don't -# indicate template substitutions (or CPU-specific symbols, which get -# handled in GenCode) by doubling them first so that the format -# operation will reduce them back to single '%'s. -def process_output(s): - s = protect_non_subst_percents(s) - # protects cpu-specific symbols too - s = protect_cpu_symbols(s) - return substBitOps(s % templateMap) - -def p_output_header(t): - 'output_header : OUTPUT HEADER CODELIT SEMI' - t[0] = GenCode(header_output = process_output(t[3])) - -def p_output_decoder(t): - 'output_decoder : OUTPUT DECODER CODELIT SEMI' - t[0] = GenCode(decoder_output = process_output(t[3])) - -def p_output_exec(t): - 'output_exec : OUTPUT EXEC CODELIT SEMI' - t[0] = GenCode(exec_output = process_output(t[3])) - -# global let blocks 'let {{...}}' (Python code blocks) are executed -# directly when seen. Note that these execute in a special variable -# context 'exportContext' to prevent the code from polluting this -# script's namespace. -def p_global_let(t): - 'global_let : LET CODELIT SEMI' - updateExportContext() - exportContext["header_output"] = '' - exportContext["decoder_output"] = '' - exportContext["exec_output"] = '' - exportContext["decode_block"] = '' - try: - exec fixPythonIndentation(t[2]) in exportContext - except Exception, exc: - error(t.lexer.lineno, - 'error: %s in global let block "%s".' % (exc, t[2])) - t[0] = GenCode(header_output = exportContext["header_output"], - decoder_output = exportContext["decoder_output"], - exec_output = exportContext["exec_output"], - decode_block = exportContext["decode_block"]) - -# Define the mapping from operand type extensions to C++ types and bit -# widths (stored in operandTypeMap). -def p_def_operand_types(t): - 'def_operand_types : DEF OPERAND_TYPES CODELIT SEMI' - try: - userDict = eval('{' + t[3] + '}') - except Exception, exc: - error(t.lexer.lineno, - 'error: %s in def operand_types block "%s".' % (exc, t[3])) - buildOperandTypeMap(userDict, t.lexer.lineno) - t[0] = GenCode() # contributes nothing to the output C++ file - -# Define the mapping from operand names to operand classes and other -# traits. Stored in operandNameMap. -def p_def_operands(t): - 'def_operands : DEF OPERANDS CODELIT SEMI' - if not globals().has_key('operandTypeMap'): - error(t.lexer.lineno, - 'error: operand types must be defined before operands') - try: - userDict = eval('{' + t[3] + '}', exportContext) - except Exception, exc: - error(t.lexer.lineno, - 'error: %s in def operands block "%s".' % (exc, t[3])) - buildOperandNameMap(userDict, t.lexer.lineno) - t[0] = GenCode() # contributes nothing to the output C++ file - -# A bitfield definition looks like: -# 'def [signed] bitfield <ID> [<first>:<last>]' -# This generates a preprocessor macro in the output file. -def p_def_bitfield_0(t): - 'def_bitfield : DEF opt_signed BITFIELD ID LESS INTLIT COLON INTLIT GREATER SEMI' - expr = 'bits(machInst, %2d, %2d)' % (t[6], t[8]) - if (t[2] == 'signed'): - expr = 'sext<%d>(%s)' % (t[6] - t[8] + 1, expr) - hash_define = '#undef %s\n#define %s\t%s\n' % (t[4], t[4], expr) - t[0] = GenCode(header_output = hash_define) - -# alternate form for single bit: 'def [signed] bitfield <ID> [<bit>]' -def p_def_bitfield_1(t): - 'def_bitfield : DEF opt_signed BITFIELD ID LESS INTLIT GREATER SEMI' - expr = 'bits(machInst, %2d, %2d)' % (t[6], t[6]) - if (t[2] == 'signed'): - expr = 'sext<%d>(%s)' % (1, expr) - hash_define = '#undef %s\n#define %s\t%s\n' % (t[4], t[4], expr) - t[0] = GenCode(header_output = hash_define) - -# alternate form for structure member: 'def bitfield <ID> <ID>' -def p_def_bitfield_struct(t): - 'def_bitfield_struct : DEF opt_signed BITFIELD ID id_with_dot SEMI' - if (t[2] != ''): - error(t.lexer.lineno, 'error: structure bitfields are always unsigned.') - expr = 'machInst.%s' % t[5] - hash_define = '#undef %s\n#define %s\t%s\n' % (t[4], t[4], expr) - t[0] = GenCode(header_output = hash_define) - -def p_id_with_dot_0(t): - 'id_with_dot : ID' - t[0] = t[1] - -def p_id_with_dot_1(t): - 'id_with_dot : ID DOT id_with_dot' - t[0] = t[1] + t[2] + t[3] - -def p_opt_signed_0(t): - 'opt_signed : SIGNED' - t[0] = t[1] - -def p_opt_signed_1(t): - 'opt_signed : empty' - t[0] = '' - -# Global map variable to hold templates -templateMap = {} - -def p_def_template(t): - 'def_template : DEF TEMPLATE ID CODELIT SEMI' - templateMap[t[3]] = Template(t[4]) - t[0] = GenCode() - -# An instruction format definition looks like -# "def format <fmt>(<params>) {{...}};" -def p_def_format(t): - 'def_format : DEF FORMAT ID LPAREN param_list RPAREN CODELIT SEMI' - (id, params, code) = (t[3], t[5], t[7]) - defFormat(id, params, code, t.lexer.lineno) - t[0] = GenCode() - -# The formal parameter list for an instruction format is a possibly -# empty list of comma-separated parameters. Positional (standard, -# non-keyword) parameters must come first, followed by keyword -# parameters, followed by a '*foo' parameter that gets excess -# positional arguments (as in Python). Each of these three parameter -# categories is optional. -# -# Note that we do not support the '**foo' parameter for collecting -# otherwise undefined keyword args. Otherwise the parameter list is -# (I believe) identical to what is supported in Python. -# -# The param list generates a tuple, where the first element is a list of -# the positional params and the second element is a dict containing the -# keyword params. -def p_param_list_0(t): - 'param_list : positional_param_list COMMA nonpositional_param_list' - t[0] = t[1] + t[3] - -def p_param_list_1(t): - '''param_list : positional_param_list - | nonpositional_param_list''' - t[0] = t[1] - -def p_positional_param_list_0(t): - 'positional_param_list : empty' - t[0] = [] - -def p_positional_param_list_1(t): - 'positional_param_list : ID' - t[0] = [t[1]] - -def p_positional_param_list_2(t): - 'positional_param_list : positional_param_list COMMA ID' - t[0] = t[1] + [t[3]] - -def p_nonpositional_param_list_0(t): - 'nonpositional_param_list : keyword_param_list COMMA excess_args_param' - t[0] = t[1] + t[3] - -def p_nonpositional_param_list_1(t): - '''nonpositional_param_list : keyword_param_list - | excess_args_param''' - t[0] = t[1] - -def p_keyword_param_list_0(t): - 'keyword_param_list : keyword_param' - t[0] = [t[1]] - -def p_keyword_param_list_1(t): - 'keyword_param_list : keyword_param_list COMMA keyword_param' - t[0] = t[1] + [t[3]] - -def p_keyword_param(t): - 'keyword_param : ID EQUALS expr' - t[0] = t[1] + ' = ' + t[3].__repr__() - -def p_excess_args_param(t): - 'excess_args_param : ASTERISK ID' - # Just concatenate them: '*ID'. Wrap in list to be consistent - # with positional_param_list and keyword_param_list. - t[0] = [t[1] + t[2]] - -# End of format definition-related rules. -############## - -# -# A decode block looks like: -# decode <field1> [, <field2>]* [default <inst>] { ... } -# -def p_decode_block(t): - 'decode_block : DECODE ID opt_default LBRACE decode_stmt_list RBRACE' - default_defaults = defaultStack.pop() - codeObj = t[5] - # use the "default defaults" only if there was no explicit - # default statement in decode_stmt_list - if not codeObj.has_decode_default: - codeObj += default_defaults - codeObj.wrap_decode_block('switch (%s) {\n' % t[2], '}\n') - t[0] = codeObj - -# The opt_default statement serves only to push the "default defaults" -# onto defaultStack. This value will be used by nested decode blocks, -# and used and popped off when the current decode_block is processed -# (in p_decode_block() above). -def p_opt_default_0(t): - 'opt_default : empty' - # no default specified: reuse the one currently at the top of the stack - defaultStack.push(defaultStack.top()) - # no meaningful value returned - t[0] = None - -def p_opt_default_1(t): - 'opt_default : DEFAULT inst' - # push the new default - codeObj = t[2] - codeObj.wrap_decode_block('\ndefault:\n', 'break;\n') - defaultStack.push(codeObj) - # no meaningful value returned - t[0] = None - -def p_decode_stmt_list_0(t): - 'decode_stmt_list : decode_stmt' - t[0] = t[1] - -def p_decode_stmt_list_1(t): - 'decode_stmt_list : decode_stmt decode_stmt_list' - if (t[1].has_decode_default and t[2].has_decode_default): - error(t.lexer.lineno, 'Two default cases in decode block') - t[0] = t[1] + t[2] - -# -# Decode statement rules -# -# There are four types of statements allowed in a decode block: -# 1. Format blocks 'format <foo> { ... }' -# 2. Nested decode blocks -# 3. Instruction definitions. -# 4. C preprocessor directives. - - -# Preprocessor directives found in a decode statement list are passed -# through to the output, replicated to all of the output code -# streams. This works well for ifdefs, so we can ifdef out both the -# declarations and the decode cases generated by an instruction -# definition. Handling them as part of the grammar makes it easy to -# keep them in the right place with respect to the code generated by -# the other statements. -def p_decode_stmt_cpp(t): - 'decode_stmt : CPPDIRECTIVE' - t[0] = GenCode(t[1], t[1], t[1], t[1]) - -# A format block 'format <foo> { ... }' sets the default instruction -# format used to handle instruction definitions inside the block. -# This format can be overridden by using an explicit format on the -# instruction definition or with a nested format block. -def p_decode_stmt_format(t): - 'decode_stmt : FORMAT push_format_id LBRACE decode_stmt_list RBRACE' - # The format will be pushed on the stack when 'push_format_id' is - # processed (see below). Once the parser has recognized the full - # production (though the right brace), we're done with the format, - # so now we can pop it. - formatStack.pop() - t[0] = t[4] - -# This rule exists so we can set the current format (& push the stack) -# when we recognize the format name part of the format block. -def p_push_format_id(t): - 'push_format_id : ID' - try: - formatStack.push(formatMap[t[1]]) - t[0] = ('', '// format %s' % t[1]) - except KeyError: - error(t.lexer.lineno, 'instruction format "%s" not defined.' % t[1]) - -# Nested decode block: if the value of the current field matches the -# specified constant, do a nested decode on some other field. -def p_decode_stmt_decode(t): - 'decode_stmt : case_label COLON decode_block' - label = t[1] - codeObj = t[3] - # just wrap the decoding code from the block as a case in the - # outer switch statement. - codeObj.wrap_decode_block('\n%s:\n' % label) - codeObj.has_decode_default = (label == 'default') - t[0] = codeObj - -# Instruction definition (finally!). -def p_decode_stmt_inst(t): - 'decode_stmt : case_label COLON inst SEMI' - label = t[1] - codeObj = t[3] - codeObj.wrap_decode_block('\n%s:' % label, 'break;\n') - codeObj.has_decode_default = (label == 'default') - t[0] = codeObj - -# The case label is either a list of one or more constants or 'default' -def p_case_label_0(t): - 'case_label : intlit_list' - t[0] = ': '.join(map(lambda a: 'case %#x' % a, t[1])) - -def p_case_label_1(t): - 'case_label : DEFAULT' - t[0] = 'default' - -# -# The constant list for a decode case label must be non-empty, but may have -# one or more comma-separated integer literals in it. -# -def p_intlit_list_0(t): - 'intlit_list : INTLIT' - t[0] = [t[1]] - -def p_intlit_list_1(t): - 'intlit_list : intlit_list COMMA INTLIT' - t[0] = t[1] - t[0].append(t[3]) - -# Define an instruction using the current instruction format (specified -# by an enclosing format block). -# "<mnemonic>(<args>)" -def p_inst_0(t): - 'inst : ID LPAREN arg_list RPAREN' - # Pass the ID and arg list to the current format class to deal with. - currentFormat = formatStack.top() - codeObj = currentFormat.defineInst(t[1], t[3], t.lexer.lineno) - args = ','.join(map(str, t[3])) - args = re.sub('(?m)^', '//', args) - args = re.sub('^//', '', args) - comment = '\n// %s::%s(%s)\n' % (currentFormat.id, t[1], args) - codeObj.prepend_all(comment) - t[0] = codeObj - -# Define an instruction using an explicitly specified format: -# "<fmt>::<mnemonic>(<args>)" -def p_inst_1(t): - 'inst : ID DBLCOLON ID LPAREN arg_list RPAREN' - try: - format = formatMap[t[1]] - except KeyError: - error(t.lexer.lineno, 'instruction format "%s" not defined.' % t[1]) - codeObj = format.defineInst(t[3], t[5], t.lexer.lineno) - comment = '\n// %s::%s(%s)\n' % (t[1], t[3], t[5]) - codeObj.prepend_all(comment) - t[0] = codeObj - -# The arg list generates a tuple, where the first element is a list of -# the positional args and the second element is a dict containing the -# keyword args. -def p_arg_list_0(t): - 'arg_list : positional_arg_list COMMA keyword_arg_list' - t[0] = ( t[1], t[3] ) - -def p_arg_list_1(t): - 'arg_list : positional_arg_list' - t[0] = ( t[1], {} ) - -def p_arg_list_2(t): - 'arg_list : keyword_arg_list' - t[0] = ( [], t[1] ) - -def p_positional_arg_list_0(t): - 'positional_arg_list : empty' - t[0] = [] - -def p_positional_arg_list_1(t): - 'positional_arg_list : expr' - t[0] = [t[1]] - -def p_positional_arg_list_2(t): - 'positional_arg_list : positional_arg_list COMMA expr' - t[0] = t[1] + [t[3]] - -def p_keyword_arg_list_0(t): - 'keyword_arg_list : keyword_arg' - t[0] = t[1] - -def p_keyword_arg_list_1(t): - 'keyword_arg_list : keyword_arg_list COMMA keyword_arg' - t[0] = t[1] - t[0].update(t[3]) - -def p_keyword_arg(t): - 'keyword_arg : ID EQUALS expr' - t[0] = { t[1] : t[3] } - -# -# Basic expressions. These constitute the argument values of -# "function calls" (i.e. instruction definitions in the decode block) -# and default values for formal parameters of format functions. -# -# Right now, these are either strings, integers, or (recursively) -# lists of exprs (using Python square-bracket list syntax). Note that -# bare identifiers are trated as string constants here (since there -# isn't really a variable namespace to refer to). -# -def p_expr_0(t): - '''expr : ID - | INTLIT - | STRLIT - | CODELIT''' - t[0] = t[1] - -def p_expr_1(t): - '''expr : LBRACKET list_expr RBRACKET''' - t[0] = t[2] - -def p_list_expr_0(t): - 'list_expr : expr' - t[0] = [t[1]] - -def p_list_expr_1(t): - 'list_expr : list_expr COMMA expr' - t[0] = t[1] + [t[3]] - -def p_list_expr_2(t): - 'list_expr : empty' - t[0] = [] + # both the latter output blocks and the decode block are in + # the namespace + namespace_code = t[3] + t[4] + # pass it all back to the caller of yacc.parse() + t[0] = (isa_name, namespace, global_code, namespace_code) + + # ISA name declaration looks like "namespace <foo>;" + def p_name_decl(self, t): + 'name_decl : NAMESPACE ID SEMI' + t[0] = t[2] + + # 'opt_defs_and_outputs' is a possibly empty sequence of + # def and/or output statements. + def p_opt_defs_and_outputs_0(self, t): + 'opt_defs_and_outputs : empty' + t[0] = GenCode() + + def p_opt_defs_and_outputs_1(self, t): + 'opt_defs_and_outputs : defs_and_outputs' + t[0] = t[1] + + def p_defs_and_outputs_0(self, t): + 'defs_and_outputs : def_or_output' + t[0] = t[1] + + def p_defs_and_outputs_1(self, t): + 'defs_and_outputs : defs_and_outputs def_or_output' + t[0] = t[1] + t[2] + + # The list of possible definition/output statements. + def p_def_or_output(self, t): + '''def_or_output : def_format + | def_bitfield + | def_bitfield_struct + | def_template + | def_operand_types + | def_operands + | output_header + | output_decoder + | output_exec + | global_let''' + t[0] = t[1] + + # Output blocks 'output <foo> {{...}}' (C++ code blocks) are copied + # directly to the appropriate output section. + + # Massage output block by substituting in template definitions and + # bit operators. We handle '%'s embedded in the string that don't + # indicate template substitutions (or CPU-specific symbols, which + # get handled in GenCode) by doubling them first so that the + # format operation will reduce them back to single '%'s. + def process_output(self, s): + s = protect_non_subst_percents(s) + # protects cpu-specific symbols too + s = protect_cpu_symbols(s) + return substBitOps(s % self.templateMap) + + def p_output_header(self, t): + 'output_header : OUTPUT HEADER CODELIT SEMI' + t[0] = GenCode(header_output = self.process_output(t[3])) + + def p_output_decoder(self, t): + 'output_decoder : OUTPUT DECODER CODELIT SEMI' + t[0] = GenCode(decoder_output = self.process_output(t[3])) + + def p_output_exec(self, t): + 'output_exec : OUTPUT EXEC CODELIT SEMI' + t[0] = GenCode(exec_output = self.process_output(t[3])) + + # global let blocks 'let {{...}}' (Python code blocks) are + # executed directly when seen. Note that these execute in a + # special variable context 'exportContext' to prevent the code + # from polluting this script's namespace. + def p_global_let(self, t): + 'global_let : LET CODELIT SEMI' + updateExportContext() + exportContext["header_output"] = '' + exportContext["decoder_output"] = '' + exportContext["exec_output"] = '' + exportContext["decode_block"] = '' + try: + exec fixPythonIndentation(t[2]) in exportContext + except Exception, exc: + error(t.lexer.lineno, + 'error: %s in global let block "%s".' % (exc, t[2])) + t[0] = GenCode(header_output = exportContext["header_output"], + decoder_output = exportContext["decoder_output"], + exec_output = exportContext["exec_output"], + decode_block = exportContext["decode_block"]) + + # Define the mapping from operand type extensions to C++ types and + # bit widths (stored in operandTypeMap). + def p_def_operand_types(self, t): + 'def_operand_types : DEF OPERAND_TYPES CODELIT SEMI' + try: + userDict = eval('{' + t[3] + '}') + except Exception, exc: + error(t.lexer.lineno, + 'error: %s in def operand_types block "%s".' % (exc, t[3])) + buildOperandTypeMap(userDict, t.lexer.lineno) + t[0] = GenCode() # contributes nothing to the output C++ file + + # Define the mapping from operand names to operand classes and + # other traits. Stored in operandNameMap. + def p_def_operands(self, t): + 'def_operands : DEF OPERANDS CODELIT SEMI' + if not globals().has_key('operandTypeMap'): + error(t.lexer.lineno, + 'error: operand types must be defined before operands') + try: + userDict = eval('{' + t[3] + '}', exportContext) + except Exception, exc: + error(t.lexer.lineno, + 'error: %s in def operands block "%s".' % (exc, t[3])) + buildOperandNameMap(userDict, t.lexer.lineno) + t[0] = GenCode() # contributes nothing to the output C++ file + + # A bitfield definition looks like: + # 'def [signed] bitfield <ID> [<first>:<last>]' + # This generates a preprocessor macro in the output file. + def p_def_bitfield_0(self, t): + 'def_bitfield : DEF opt_signed BITFIELD ID LESS INTLIT COLON INTLIT GREATER SEMI' + expr = 'bits(machInst, %2d, %2d)' % (t[6], t[8]) + if (t[2] == 'signed'): + expr = 'sext<%d>(%s)' % (t[6] - t[8] + 1, expr) + hash_define = '#undef %s\n#define %s\t%s\n' % (t[4], t[4], expr) + t[0] = GenCode(header_output = hash_define) + + # alternate form for single bit: 'def [signed] bitfield <ID> [<bit>]' + def p_def_bitfield_1(self, t): + 'def_bitfield : DEF opt_signed BITFIELD ID LESS INTLIT GREATER SEMI' + expr = 'bits(machInst, %2d, %2d)' % (t[6], t[6]) + if (t[2] == 'signed'): + expr = 'sext<%d>(%s)' % (1, expr) + hash_define = '#undef %s\n#define %s\t%s\n' % (t[4], t[4], expr) + t[0] = GenCode(header_output = hash_define) + + # alternate form for structure member: 'def bitfield <ID> <ID>' + def p_def_bitfield_struct(self, t): + 'def_bitfield_struct : DEF opt_signed BITFIELD ID id_with_dot SEMI' + if (t[2] != ''): + error(t.lexer.lineno, + 'error: structure bitfields are always unsigned.') + expr = 'machInst.%s' % t[5] + hash_define = '#undef %s\n#define %s\t%s\n' % (t[4], t[4], expr) + t[0] = GenCode(header_output = hash_define) + + def p_id_with_dot_0(self, t): + 'id_with_dot : ID' + t[0] = t[1] + + def p_id_with_dot_1(self, t): + 'id_with_dot : ID DOT id_with_dot' + t[0] = t[1] + t[2] + t[3] + + def p_opt_signed_0(self, t): + 'opt_signed : SIGNED' + t[0] = t[1] + + def p_opt_signed_1(self, t): + 'opt_signed : empty' + t[0] = '' + + def p_def_template(self, t): + 'def_template : DEF TEMPLATE ID CODELIT SEMI' + self.templateMap[t[3]] = Template(t[4]) + t[0] = GenCode() + + # An instruction format definition looks like + # "def format <fmt>(<params>) {{...}};" + def p_def_format(self, t): + 'def_format : DEF FORMAT ID LPAREN param_list RPAREN CODELIT SEMI' + (id, params, code) = (t[3], t[5], t[7]) + defFormat(id, params, code, t.lexer.lineno) + t[0] = GenCode() + + # The formal parameter list for an instruction format is a + # possibly empty list of comma-separated parameters. Positional + # (standard, non-keyword) parameters must come first, followed by + # keyword parameters, followed by a '*foo' parameter that gets + # excess positional arguments (as in Python). Each of these three + # parameter categories is optional. + # + # Note that we do not support the '**foo' parameter for collecting + # otherwise undefined keyword args. Otherwise the parameter list + # is (I believe) identical to what is supported in Python. + # + # The param list generates a tuple, where the first element is a + # list of the positional params and the second element is a dict + # containing the keyword params. + def p_param_list_0(self, t): + 'param_list : positional_param_list COMMA nonpositional_param_list' + t[0] = t[1] + t[3] + + def p_param_list_1(self, t): + '''param_list : positional_param_list + | nonpositional_param_list''' + t[0] = t[1] + + def p_positional_param_list_0(self, t): + 'positional_param_list : empty' + t[0] = [] + + def p_positional_param_list_1(self, t): + 'positional_param_list : ID' + t[0] = [t[1]] + + def p_positional_param_list_2(self, t): + 'positional_param_list : positional_param_list COMMA ID' + t[0] = t[1] + [t[3]] + + def p_nonpositional_param_list_0(self, t): + 'nonpositional_param_list : keyword_param_list COMMA excess_args_param' + t[0] = t[1] + t[3] + + def p_nonpositional_param_list_1(self, t): + '''nonpositional_param_list : keyword_param_list + | excess_args_param''' + t[0] = t[1] + + def p_keyword_param_list_0(self, t): + 'keyword_param_list : keyword_param' + t[0] = [t[1]] + + def p_keyword_param_list_1(self, t): + 'keyword_param_list : keyword_param_list COMMA keyword_param' + t[0] = t[1] + [t[3]] + + def p_keyword_param(self, t): + 'keyword_param : ID EQUALS expr' + t[0] = t[1] + ' = ' + t[3].__repr__() + + def p_excess_args_param(self, t): + 'excess_args_param : ASTERISK ID' + # Just concatenate them: '*ID'. Wrap in list to be consistent + # with positional_param_list and keyword_param_list. + t[0] = [t[1] + t[2]] + + # End of format definition-related rules. + ############## + + # + # A decode block looks like: + # decode <field1> [, <field2>]* [default <inst>] { ... } + # + def p_decode_block(self, t): + 'decode_block : DECODE ID opt_default LBRACE decode_stmt_list RBRACE' + default_defaults = defaultStack.pop() + codeObj = t[5] + # use the "default defaults" only if there was no explicit + # default statement in decode_stmt_list + if not codeObj.has_decode_default: + codeObj += default_defaults + codeObj.wrap_decode_block('switch (%s) {\n' % t[2], '}\n') + t[0] = codeObj + + # The opt_default statement serves only to push the "default + # defaults" onto defaultStack. This value will be used by nested + # decode blocks, and used and popped off when the current + # decode_block is processed (in p_decode_block() above). + def p_opt_default_0(self, t): + 'opt_default : empty' + # no default specified: reuse the one currently at the top of + # the stack + defaultStack.push(defaultStack.top()) + # no meaningful value returned + t[0] = None + + def p_opt_default_1(self, t): + 'opt_default : DEFAULT inst' + # push the new default + codeObj = t[2] + codeObj.wrap_decode_block('\ndefault:\n', 'break;\n') + defaultStack.push(codeObj) + # no meaningful value returned + t[0] = None + + def p_decode_stmt_list_0(self, t): + 'decode_stmt_list : decode_stmt' + t[0] = t[1] + + def p_decode_stmt_list_1(self, t): + 'decode_stmt_list : decode_stmt decode_stmt_list' + if (t[1].has_decode_default and t[2].has_decode_default): + error(t.lexer.lineno, 'Two default cases in decode block') + t[0] = t[1] + t[2] + + # + # Decode statement rules + # + # There are four types of statements allowed in a decode block: + # 1. Format blocks 'format <foo> { ... }' + # 2. Nested decode blocks + # 3. Instruction definitions. + # 4. C preprocessor directives. + + + # Preprocessor directives found in a decode statement list are + # passed through to the output, replicated to all of the output + # code streams. This works well for ifdefs, so we can ifdef out + # both the declarations and the decode cases generated by an + # instruction definition. Handling them as part of the grammar + # makes it easy to keep them in the right place with respect to + # the code generated by the other statements. + def p_decode_stmt_cpp(self, t): + 'decode_stmt : CPPDIRECTIVE' + t[0] = GenCode(t[1], t[1], t[1], t[1]) + + # A format block 'format <foo> { ... }' sets the default + # instruction format used to handle instruction definitions inside + # the block. This format can be overridden by using an explicit + # format on the instruction definition or with a nested format + # block. + def p_decode_stmt_format(self, t): + 'decode_stmt : FORMAT push_format_id LBRACE decode_stmt_list RBRACE' + # The format will be pushed on the stack when 'push_format_id' + # is processed (see below). Once the parser has recognized + # the full production (though the right brace), we're done + # with the format, so now we can pop it. + formatStack.pop() + t[0] = t[4] + + # This rule exists so we can set the current format (& push the + # stack) when we recognize the format name part of the format + # block. + def p_push_format_id(self, t): + 'push_format_id : ID' + try: + formatStack.push(formatMap[t[1]]) + t[0] = ('', '// format %s' % t[1]) + except KeyError: + error(t.lexer.lineno, + 'instruction format "%s" not defined.' % t[1]) + + # Nested decode block: if the value of the current field matches + # the specified constant, do a nested decode on some other field. + def p_decode_stmt_decode(self, t): + 'decode_stmt : case_label COLON decode_block' + label = t[1] + codeObj = t[3] + # just wrap the decoding code from the block as a case in the + # outer switch statement. + codeObj.wrap_decode_block('\n%s:\n' % label) + codeObj.has_decode_default = (label == 'default') + t[0] = codeObj + + # Instruction definition (finally!). + def p_decode_stmt_inst(self, t): + 'decode_stmt : case_label COLON inst SEMI' + label = t[1] + codeObj = t[3] + codeObj.wrap_decode_block('\n%s:' % label, 'break;\n') + codeObj.has_decode_default = (label == 'default') + t[0] = codeObj + + # The case label is either a list of one or more constants or + # 'default' + def p_case_label_0(self, t): + 'case_label : intlit_list' + def make_case(intlit): + if intlit >= 2**32: + return 'case ULL(%#x)' % intlit + else: + return 'case %#x' % intlit + t[0] = ': '.join(map(make_case, t[1])) + + def p_case_label_1(self, t): + 'case_label : DEFAULT' + t[0] = 'default' + + # + # The constant list for a decode case label must be non-empty, but + # may have one or more comma-separated integer literals in it. + # + def p_intlit_list_0(self, t): + 'intlit_list : INTLIT' + t[0] = [t[1]] + + def p_intlit_list_1(self, t): + 'intlit_list : intlit_list COMMA INTLIT' + t[0] = t[1] + t[0].append(t[3]) + + # Define an instruction using the current instruction format + # (specified by an enclosing format block). + # "<mnemonic>(<args>)" + def p_inst_0(self, t): + 'inst : ID LPAREN arg_list RPAREN' + # Pass the ID and arg list to the current format class to deal with. + currentFormat = formatStack.top() + codeObj = currentFormat.defineInst(t[1], t[3], t.lexer.lineno) + args = ','.join(map(str, t[3])) + args = re.sub('(?m)^', '//', args) + args = re.sub('^//', '', args) + comment = '\n// %s::%s(%s)\n' % (currentFormat.id, t[1], args) + codeObj.prepend_all(comment) + t[0] = codeObj + + # Define an instruction using an explicitly specified format: + # "<fmt>::<mnemonic>(<args>)" + def p_inst_1(self, t): + 'inst : ID DBLCOLON ID LPAREN arg_list RPAREN' + try: + format = formatMap[t[1]] + except KeyError: + error(t.lexer.lineno, + 'instruction format "%s" not defined.' % t[1]) + codeObj = format.defineInst(t[3], t[5], t.lexer.lineno) + comment = '\n// %s::%s(%s)\n' % (t[1], t[3], t[5]) + codeObj.prepend_all(comment) + t[0] = codeObj + + # The arg list generates a tuple, where the first element is a + # list of the positional args and the second element is a dict + # containing the keyword args. + def p_arg_list_0(self, t): + 'arg_list : positional_arg_list COMMA keyword_arg_list' + t[0] = ( t[1], t[3] ) + + def p_arg_list_1(self, t): + 'arg_list : positional_arg_list' + t[0] = ( t[1], {} ) + + def p_arg_list_2(self, t): + 'arg_list : keyword_arg_list' + t[0] = ( [], t[1] ) + + def p_positional_arg_list_0(self, t): + 'positional_arg_list : empty' + t[0] = [] + + def p_positional_arg_list_1(self, t): + 'positional_arg_list : expr' + t[0] = [t[1]] + + def p_positional_arg_list_2(self, t): + 'positional_arg_list : positional_arg_list COMMA expr' + t[0] = t[1] + [t[3]] + + def p_keyword_arg_list_0(self, t): + 'keyword_arg_list : keyword_arg' + t[0] = t[1] + + def p_keyword_arg_list_1(self, t): + 'keyword_arg_list : keyword_arg_list COMMA keyword_arg' + t[0] = t[1] + t[0].update(t[3]) + + def p_keyword_arg(self, t): + 'keyword_arg : ID EQUALS expr' + t[0] = { t[1] : t[3] } + + # + # Basic expressions. These constitute the argument values of + # "function calls" (i.e. instruction definitions in the decode + # block) and default values for formal parameters of format + # functions. + # + # Right now, these are either strings, integers, or (recursively) + # lists of exprs (using Python square-bracket list syntax). Note + # that bare identifiers are trated as string constants here (since + # there isn't really a variable namespace to refer to). + # + def p_expr_0(self, t): + '''expr : ID + | INTLIT + | STRLIT + | CODELIT''' + t[0] = t[1] + + def p_expr_1(self, t): + '''expr : LBRACKET list_expr RBRACKET''' + t[0] = t[2] + + def p_list_expr_0(self, t): + 'list_expr : expr' + t[0] = [t[1]] + + def p_list_expr_1(self, t): + 'list_expr : list_expr COMMA expr' + t[0] = t[1] + [t[3]] + + def p_list_expr_2(self, t): + 'list_expr : empty' + t[0] = [] + + # + # Empty production... use in other rules for readability. + # + def p_empty(self, t): + 'empty :' + pass + + # Parse error handler. Note that the argument here is the + # offending *token*, not a grammar symbol (hence the need to use + # t.value) + def p_error(self, t): + if t: + error(t.lexer.lineno, "syntax error at '%s'" % t.value) + else: + error(0, "unknown syntax error", True) -# -# Empty production... use in other rules for readability. -# -def p_empty(t): - 'empty :' - pass - -# Parse error handler. Note that the argument here is the offending -# *token*, not a grammar symbol (hence the need to use t.value) -def p_error(t): - if t: - error(t.lexer.lineno, "syntax error at '%s'" % t.value) - else: - error(0, "unknown syntax error", True) + # END OF GRAMMAR RULES -# END OF GRAMMAR RULES -# # Now build the parser. -parser = yacc.yacc() - +parser = ISAParser() ##################################################################### # @@ -766,6 +768,11 @@ def expand_cpu_symbols_to_string(template): def protect_cpu_symbols(template): return re.sub(r'%(?=\(CPU_)', '%%', template) +# Protect any non-dict-substitution '%'s in a format string +# (i.e. those not followed by '(') +def protect_non_subst_percents(s): + return re.sub(r'%(?!\()', '%%', s) + ############### # GenCode class # @@ -839,7 +846,7 @@ exportContext = {} def updateExportContext(): exportContext.update(exportDict(*exportContextSymbols)) - exportContext.update(templateMap) + exportContext.update(parser.templateMap) def exportDict(*symNames): return dict([(s, eval(s)) for s in symNames]) @@ -1049,7 +1056,7 @@ class Template: # Build a dict ('myDict') to use for the template substitution. # Start with the template namespace. Make a copy since we're # going to modify it. - myDict = templateMap.copy() + myDict = parser.templateMap.copy() if isinstance(d, InstObjParams): # If we're dealing with an InstObjParams object, we need @@ -1463,6 +1470,16 @@ class MemOperand(Operand): def makeAccSize(self): return self.size +class PCOperand(Operand): + def makeConstructor(self): + return '' + + def makeRead(self): + return '%s = xc->readPC();\n' % self.base_name + + def makeWrite(self): + return 'xc->setPC(%s);\n' % self.base_name + class UPCOperand(Operand): def makeConstructor(self): return '' @@ -1975,8 +1992,7 @@ def parse_isa_desc(isa_desc_file, output_dir): fileNameStack.push((isa_desc_file, 0)) # Parse it. - (isa_name, namespace, global_code, namespace_code) = \ - parser.parse(isa_desc, lexer=lexer) + (isa_name, namespace, global_code, namespace_code) = parser.parse(isa_desc) # grab the last three path components of isa_desc_file to put in # the output diff --git a/src/arch/micro_asm.py b/src/arch/micro_asm.py index 3433a8076..4e5400cef 100644 --- a/src/arch/micro_asm.py +++ b/src/arch/micro_asm.py @@ -34,10 +34,6 @@ import traceback # get type names from types import * -# Prepend the directory where the PLY lex & yacc modules are found -# to the search path. -sys.path[0:0] = [os.environ['M5_PLY']] - from ply import lex from ply import yacc diff --git a/src/arch/mips/BISystem.py b/src/arch/mips/BISystem.py index dd4e4fe25..a6e4091f2 100755 --- a/src/arch/mips/BISystem.py +++ b/src/arch/mips/BISystem.py @@ -28,10 +28,11 @@ # # Authors: Jaidev Patwardhan -from m5 import build_env +from m5.defines import buildEnv + from System import * -if build_env['FULL_SYSTEM']: +if buildEnv['FULL_SYSTEM']: class BareIronMipsSystem(MipsSystem): type = 'BareIronMipsSystem' system_type = 34 diff --git a/src/arch/mips/MipsCPU.py b/src/arch/mips/MipsCPU.py index 81c6bdacf..48ee4171c 100644 --- a/src/arch/mips/MipsCPU.py +++ b/src/arch/mips/MipsCPU.py @@ -29,12 +29,13 @@ # Authors: Jaidev Patwardhan # Korey Sewell -from m5.SimObject import SimObject +from m5.defines import buildEnv from m5.params import * + from BaseCPU import BaseCPU class BaseMipsCPU(BaseCPU) - if build_env['TARGET_ISA'] == 'mips': + if buildEnv['TARGET_ISA'] == 'mips': CP0_IntCtl_IPTI = Param.Unsigned(0,"No Description") CP0_IntCtl_IPPCI = Param.Unsigned(0,"No Description") CP0_SrsCtl_HSS = Param.Unsigned(0,"No Description") diff --git a/src/arch/mips/MipsSystem.py b/src/arch/mips/MipsSystem.py index c3dcf4e0b..d271bd387 100644 --- a/src/arch/mips/MipsSystem.py +++ b/src/arch/mips/MipsSystem.py @@ -28,10 +28,10 @@ # # Authors: Jaidev Patwardhan -from m5.SimObject import SimObject +from m5.defines import buildEnv from m5.params import * from m5.proxy import * -from m5 import build_env + from System import System class MipsSystem(System): @@ -42,7 +42,7 @@ class MipsSystem(System): system_type = Param.UInt64("Type of system we are emulating") system_rev = Param.UInt64("Revision of system we are emulating") -if build_env['FULL_SYSTEM']: +if buildEnv['FULL_SYSTEM']: class LinuxMipsSystem(MipsSystem): type = 'LinuxMipsSystem' system_type = 34 diff --git a/src/arch/mips/dsp.cc b/src/arch/mips/dsp.cc index 6e4f7afea..b8b02ae9e 100755 --- a/src/arch/mips/dsp.cc +++ b/src/arch/mips/dsp.cc @@ -463,6 +463,8 @@ MipsISA::dspMuleq(int32_t a, int32_t b, int32_t mode, uint32_t *dspctl) uint64_t b_values[SIMD_MAX_VALS]; uint64_t c_values[SIMD_MAX_VALS]; + memset(c_values, 0, sizeof(c_values)); + simdUnpack(a, a_values, SIMD_FMT_PH, SIGNED); simdUnpack(b, b_values, SIMD_FMT_PH, SIGNED); @@ -743,7 +745,7 @@ MipsISA::dspMulsaq(int64_t dspac, int32_t a, int32_t b, int32_t ac, int nvals = SIMD_NVALS[fmt]; uint64_t a_values[SIMD_MAX_VALS]; uint64_t b_values[SIMD_MAX_VALS]; - int64_t temp[2]; + int64_t temp[2] = {0, 0}; uint32_t ouflag = 0; simdUnpack(a, a_values, fmt, SIGNED); diff --git a/src/arch/mips/isa.hh b/src/arch/mips/isa.hh index 15c043dc0..165adff83 100644 --- a/src/arch/mips/isa.hh +++ b/src/arch/mips/isa.hh @@ -172,8 +172,11 @@ namespace MipsISA return reg; } - void serialize(std::ostream &os); - void unserialize(Checkpoint *cp, const std::string §ion); + void serialize(EventManager *em, std::ostream &os) + {} + void unserialize(EventManager *em, Checkpoint *cp, + const std::string §ion) + {} }; } diff --git a/src/arch/mips/isa/formats/mem.isa b/src/arch/mips/isa/formats/mem.isa index adcb16137..161a52b06 100644 --- a/src/arch/mips/isa/formats/mem.isa +++ b/src/arch/mips/isa/formats/mem.isa @@ -619,7 +619,7 @@ def format StoreUnalignedMemory(memacc_code, ea_code = {{ EA = (Rs + disp) & ~3; def format Prefetch(ea_code = {{ EA = Rs + disp; }}, mem_flags = [], pf_flags = [], inst_flags = []) {{ - pf_mem_flags = mem_flags + pf_flags + ['NO_FAULT'] + pf_mem_flags = mem_flags + pf_flags + ['PREFETCH'] pf_inst_flags = inst_flags + ['IsMemRef', 'IsLoad', 'IsDataPrefetch', 'MemReadOp'] diff --git a/src/arch/mips/linux/linux.hh b/src/arch/mips/linux/linux.hh index ee81fa18f..a2418cfb6 100644 --- a/src/arch/mips/linux/linux.hh +++ b/src/arch/mips/linux/linux.hh @@ -100,6 +100,7 @@ class MipsLinux : public Linux static const unsigned TIOCISATTY_ = 0x5480; static const unsigned TIOCGETS_ = 0x540d; static const unsigned TIOCGETA_ = 0x7417; + static const unsigned TCSETAW_ = 0x5403; // 2.6.15 kernel //@} /// For table(). @@ -126,6 +127,22 @@ class MipsLinux : public Linux /// assign themselves to process IDs reserved for /// the root users. static const int NUM_ROOT_PROCS = 2; + + typedef struct { + int32_t uptime; /* Seconds since boot */ + uint32_t loads[3]; /* 1, 5, and 15 minute load averages */ + uint32_t totalram; /* Total usable main memory size */ + uint32_t freeram; /* Available memory size */ + uint32_t sharedram; /* Amount of shared memory */ + uint32_t bufferram; /* Memory used by buffers */ + uint32_t totalswap; /* Total swap space size */ + uint32_t freeswap; /* swap space still available */ + uint16_t procs; /* Number of current processes */ + uint32_t totalhigh; /* Total high memory size */ + uint32_t freehigh; /* Available high memory size */ + uint32_t mem_unit; /* Memory unit size in bytes */ + } tgt_sysinfo; + }; #endif diff --git a/src/arch/mips/linux/process.cc b/src/arch/mips/linux/process.cc index 53a24487f..c2a05b73b 100644 --- a/src/arch/mips/linux/process.cc +++ b/src/arch/mips/linux/process.cc @@ -51,7 +51,8 @@ static SyscallReturn unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, 0)); + int index = 0; + TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index)); strcpy(name->sysname, "Linux"); strcpy(name->nodename,"m5.eecs.umich.edu"); @@ -70,14 +71,16 @@ static SyscallReturn sys_getsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - unsigned op = process->getSyscallArg(tc, 0); - // unsigned nbytes = process->getSyscallArg(tc, 2); + int index = 0; + unsigned op = process->getSyscallArg(tc, index); + unsigned bufPtr = process->getSyscallArg(tc, index); + // unsigned nbytes = process->getSyscallArg(tc, index); switch (op) { case 45: { // GSI_IEEE_FP_CONTROL - TypedBufferArg<uint64_t> fpcr(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint64_t> fpcr(bufPtr); // I don't think this exactly matches the HW FPCR *fpcr = 0; fpcr.copyOut(tc->getMemPort()); @@ -97,15 +100,17 @@ static SyscallReturn sys_setsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - unsigned op = process->getSyscallArg(tc, 0); - // unsigned nbytes = process->getSyscallArg(tc, 2); + int index = 0; + unsigned op = process->getSyscallArg(tc, index); + Addr bufPtr = process->getSyscallArg(tc, index); + // unsigned nbytes = process->getSyscallArg(tc, index); switch (op) { case 14: { // SSI_IEEE_FP_CONTROL - TypedBufferArg<uint64_t> fpcr(process->getSyscallArg(tc, 1)); + TypedBufferArg<uint64_t> fpcr(bufPtr); // I don't think this exactly matches the HW FPCR fpcr.copyIn(tc->getMemPort()); DPRINTFR(SyscallVerbose, "sys_setsysinfo(SSI_IEEE_FP_CONTROL): " @@ -238,7 +243,7 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = { /* 113 */ SyscallDesc("vm86", unimplementedFunc), /* 114 */ SyscallDesc("wait4", unimplementedFunc), /* 115 */ SyscallDesc("swapoff", unimplementedFunc), - /* 116 */ SyscallDesc("sysinfo", unimplementedFunc), + /* 116 */ SyscallDesc("sysinfo", sysinfoFunc<MipsLinux>), /* 117 */ SyscallDesc("ipc", unimplementedFunc), /* 118 */ SyscallDesc("fsync", unimplementedFunc), /* 119 */ SyscallDesc("sigreturn", unimplementedFunc), @@ -413,12 +418,6 @@ MipsLinuxProcess::MipsLinuxProcess(LiveProcessParams * params, Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc)) { } -void -MipsLinuxProcess::startup() -{ - MipsLiveProcess::argsInit(MachineBytes, VMPageSize); -} - SyscallDesc* MipsLinuxProcess::getDesc(int callnum) { diff --git a/src/arch/mips/linux/process.hh b/src/arch/mips/linux/process.hh index 5afde2be1..8c45014e0 100644 --- a/src/arch/mips/linux/process.hh +++ b/src/arch/mips/linux/process.hh @@ -43,8 +43,6 @@ class MipsLinuxProcess : public MipsLiveProcess /// Constructor. MipsLinuxProcess(LiveProcessParams * params, ObjectFile *objFile); - void startup(); - virtual SyscallDesc* getDesc(int callnum); /// The target system's hostname. diff --git a/src/arch/mips/process.cc b/src/arch/mips/process.cc index 3e9fb7c20..d96b0c81c 100644 --- a/src/arch/mips/process.cc +++ b/src/arch/mips/process.cc @@ -32,9 +32,15 @@ #include "arch/mips/isa_traits.hh" #include "arch/mips/process.hh" + #include "base/loader/object_file.hh" #include "base/misc.hh" #include "cpu/thread_context.hh" + +#include "mem/page_table.hh" + +#include "sim/process.hh" +#include "sim/process_impl.hh" #include "sim/system.hh" using namespace std; @@ -62,14 +68,89 @@ MipsLiveProcess::MipsLiveProcess(LiveProcessParams * params, void MipsLiveProcess::startup() { + Process::startup(); + argsInit(MachineBytes, VMPageSize); } +void +MipsLiveProcess::argsInit(int intSize, int pageSize) +{ + // load object file into target memory + objFile->loadSections(initVirtMem); + + // Calculate how much space we need for arg & env arrays. + int argv_array_size = intSize * (argv.size() + 1); + int envp_array_size = intSize * (envp.size() + 1); + int arg_data_size = 0; + for (vector<string>::size_type i = 0; i < argv.size(); ++i) { + arg_data_size += argv[i].size() + 1; + } + int env_data_size = 0; + for (vector<string>::size_type i = 0; i < envp.size(); ++i) { + env_data_size += envp[i].size() + 1; + } + + int space_needed = + argv_array_size + envp_array_size + arg_data_size + env_data_size; + if (space_needed < 32*1024) + space_needed = 32*1024; + + // set bottom of stack + stack_min = stack_base - space_needed; + // align it + stack_min = roundDown(stack_min, pageSize); + stack_size = stack_base - stack_min; + // map memory + pTable->allocate(stack_min, roundUp(stack_size, pageSize)); + + // map out initial stack contents + // ======== + // NOTE: Using uint32_t hardcodes MIPS32 and not MIPS64 + // even if MIPS64 was intended. This is because the + // copyStringArray function templates on the parameters. + // Elegant way to check intSize and vary between 32/64? + // ======== + uint32_t argv_array_base = stack_min + intSize; // room for argc + uint32_t envp_array_base = argv_array_base + argv_array_size; + uint32_t arg_data_base = envp_array_base + envp_array_size; + uint32_t env_data_base = arg_data_base + arg_data_size; + + // write contents to stack + uint32_t argc = argv.size(); + + if (intSize == 8) + argc = htog((uint64_t)argc); + else if (intSize == 4) + argc = htog((uint32_t)argc); + else + panic("Unknown int size"); + + + initVirtMem->writeBlob(stack_min, (uint8_t*)&argc, intSize); + + copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem); + + copyStringArray(envp, envp_array_base, env_data_base, initVirtMem); + + ThreadContext *tc = system->getThreadContext(contextIds[0]); + + setSyscallArg(tc, 0, argc); + setSyscallArg(tc, 1, argv_array_base); + tc->setIntReg(StackPointerReg, stack_min); + + Addr prog_entry = objFile->entryPoint(); + tc->setPC(prog_entry); + tc->setNextPC(prog_entry + sizeof(MachInst)); + tc->setNextNPC(prog_entry + (2 * sizeof(MachInst))); +} + + MipsISA::IntReg -MipsLiveProcess::getSyscallArg(ThreadContext *tc, int i) +MipsLiveProcess::getSyscallArg(ThreadContext *tc, int &i) { assert(i < 6); - return tc->readIntReg(FirstArgumentReg + i); + return tc->readIntReg(FirstArgumentReg + i++); } void diff --git a/src/arch/mips/process.hh b/src/arch/mips/process.hh index 87c62330f..f35ec8554 100644 --- a/src/arch/mips/process.hh +++ b/src/arch/mips/process.hh @@ -45,10 +45,12 @@ class MipsLiveProcess : public LiveProcess protected: MipsLiveProcess(LiveProcessParams * params, ObjectFile *objFile); - virtual void startup(); + void startup(); + + void argsInit(int intSize, int pageSize); public: - MipsISA::IntReg getSyscallArg(ThreadContext *tc, int i); + MipsISA::IntReg getSyscallArg(ThreadContext *tc, int &i); void setSyscallArg(ThreadContext *tc, int i, MipsISA::IntReg val); void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); }; diff --git a/src/arch/power/PowerTLB.py b/src/arch/power/PowerTLB.py new file mode 100644 index 000000000..36dff5333 --- /dev/null +++ b/src/arch/power/PowerTLB.py @@ -0,0 +1,37 @@ +# -*- mode:python -*- + +# Copyright (c) 2009 The University of Edinburgh +# 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: Timothy M. Jones + +from m5.SimObject import SimObject +from m5.params import * + +class PowerTLB(SimObject): + type = 'PowerTLB' + cxx_class = 'PowerISA::TLB' + size = Param.Int(64, "TLB size") diff --git a/src/arch/power/SConscript b/src/arch/power/SConscript new file mode 100644 index 000000000..1fb36eaab --- /dev/null +++ b/src/arch/power/SConscript @@ -0,0 +1,61 @@ +# -*- mode:python -*- + +# Copyright (c) 2009 The University of Edinburgh +# 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: Timothy M. Jones + +Import('*') + +if env['TARGET_ISA'] == 'power': +# Workaround for bug in SCons version > 0.97d20071212 +# Scons bug id: 2006 M5 Bug id: 308 + Dir('isa/formats') + Source('insts/branch.cc') + Source('insts/mem.cc') + Source('insts/integer.cc') + Source('insts/floating.cc') + Source('insts/condition.cc') + Source('insts/static_inst.cc') + Source('pagetable.cc') + Source('tlb.cc') + + SimObject('PowerTLB.py') + TraceFlag('Power') + + if not env['FULL_SYSTEM']: + Source('process.cc') + Source('linux/linux.cc') + Source('linux/process.cc') + + # Add in files generated by the ISA description. + isa_desc_files = env.ISADesc('isa/main.isa') + + # Only non-header files need to be compiled. + for f in isa_desc_files: + if not f.path.endswith('.hh'): + Source(f) + diff --git a/src/arch/power/SConsopts b/src/arch/power/SConsopts new file mode 100644 index 000000000..d762c2d58 --- /dev/null +++ b/src/arch/power/SConsopts @@ -0,0 +1,33 @@ +# -*- mode:python -*- + +# Copyright (c) 2009 The University of Edinburgh +# 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: Timothy M. Jones + +Import('*') + +all_isa_list.append('power') diff --git a/src/arch/isa_specific.hh b/src/arch/power/faults.hh index de070bbf9..eadcb7900 100644 --- a/src/arch/isa_specific.hh +++ b/src/arch/power/faults.hh @@ -1,5 +1,6 @@ /* * Copyright (c) 2003-2005 The Regents of The University of Michigan + * Copyright (c) 2009 The University of Edinburgh * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -26,45 +27,61 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Authors: Gabe Black + * Timothy M. Jones */ -#ifndef __ARCH_ISA_SPECIFIC_HH__ -#define __ARCH_ISA_SPECIFIC_HH__ +#ifndef __ARCH_POWER_FAULTS_HH__ +#define __ARCH_POWER_FAULTS_HH__ -//This file provides a mechanism for other source code to bring in -//files from the ISA being compiled in. +#include "sim/faults.hh" -//These are constants so you can selectively compile code based on the isa. -//To use them, do something like: -// -//#if THE_ISA == YOUR_FAVORITE_ISA -// conditional_code -//#endif -// -//Note that this is how this file sets up the TheISA macro. +namespace PowerISA +{ -//These macros have numerical values because otherwise the preprocessor -//would treat them as 0 in comparisons. -#define ALPHA_ISA 21064 -#define SPARC_ISA 42 -#define MIPS_ISA 34000 -#define X86_ISA 8086 -#define ARM_ISA 6 +class PowerFault : public FaultBase +{ + protected: + FaultName _name; -//These tell the preprocessor where to find the files of a particular -//ISA, and set the "TheISA" macro for use elsewhere. -#if THE_ISA == ALPHA_ISA - #define TheISA AlphaISA -#elif THE_ISA == SPARC_ISA - #define TheISA SparcISA -#elif THE_ISA == MIPS_ISA - #define TheISA MipsISA -#elif THE_ISA == X86_ISA - #define TheISA X86ISA -#elif THE_ISA == ARM_ISA - #define TheISA ArmISA -#else - #error "THE_ISA not set" -#endif + PowerFault(FaultName name) + : _name(name) + { + } -#endif + FaultName + name() const + { + return _name; + } +}; + + +class UnimplementedOpcodeFault : public PowerFault +{ + public: + UnimplementedOpcodeFault() + : PowerFault("Unimplemented Opcode") + { + } +}; + + +class MachineCheckFault : public PowerFault +{ + public: + MachineCheckFault() + : PowerFault("Machine Check") + { + } +}; + + +static inline Fault +genMachineCheckFault() +{ + return new MachineCheckFault(); +} + +} // PowerISA namespace + +#endif // __ARCH_POWER_FAULTS_HH__ diff --git a/src/arch/power/insts/branch.cc b/src/arch/power/insts/branch.cc new file mode 100644 index 000000000..3f4346c97 --- /dev/null +++ b/src/arch/power/insts/branch.cc @@ -0,0 +1,169 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#include "arch/power/insts/branch.hh" +#include "base/loader/symtab.hh" + +using namespace PowerISA; + +const std::string & +PCDependentDisassembly::disassemble(Addr pc, const SymbolTable *symtab) const +{ + if (!cachedDisassembly || + pc != cachedPC || symtab != cachedSymtab) + { + if (cachedDisassembly) + delete cachedDisassembly; + + cachedDisassembly = + new std::string(generateDisassembly(pc, symtab)); + cachedPC = pc; + cachedSymtab = symtab; + } + + return *cachedDisassembly; +} + +Addr +BranchPCRel::branchTarget(Addr pc) const +{ + return (uint32_t)(pc + disp); +} + +std::string +BranchPCRel::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + Addr target = pc + disp; + + std::string str; + if (symtab && symtab->findSymbol(target, str)) + ss << str; + else + ccprintf(ss, "0x%x", target); + + return ss.str(); +} + +Addr +BranchNonPCRel::branchTarget(Addr pc) const +{ + return targetAddr; +} + +std::string +BranchNonPCRel::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + std::string str; + if (symtab && symtab->findSymbol(targetAddr, str)) + ss << str; + else + ccprintf(ss, "0x%x", targetAddr); + + return ss.str(); +} + +Addr +BranchPCRelCond::branchTarget(Addr pc) const +{ + return (uint32_t)(pc + disp); +} + +std::string +BranchPCRelCond::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + ss << bo << ", " << bi << ", "; + + Addr target = pc + disp; + + std::string str; + if (symtab && symtab->findSymbol(target, str)) + ss << str; + else + ccprintf(ss, "0x%x", target); + + return ss.str(); +} + +Addr +BranchNonPCRelCond::branchTarget(Addr pc) const +{ + return targetAddr; +} + +std::string +BranchNonPCRelCond::generateDisassembly(Addr pc, + const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + ss << bo << ", " << bi << ", "; + + std::string str; + if (symtab && symtab->findSymbol(targetAddr, str)) + ss << str; + else + ccprintf(ss, "0x%x", targetAddr); + + return ss.str(); +} + +Addr +BranchRegCond::branchTarget(ThreadContext *tc) const +{ + uint32_t regVal = tc->readIntReg(_srcRegIdx[_numSrcRegs - 1]); + return (regVal & 0xfffffffc); +} + +std::string +BranchRegCond::generateDisassembly(Addr pc, + const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + ss << bo << ", " << bi << ", "; + + return ss.str(); +} diff --git a/src/arch/power/insts/branch.hh b/src/arch/power/insts/branch.hh new file mode 100644 index 000000000..dd00e42c3 --- /dev/null +++ b/src/arch/power/insts/branch.hh @@ -0,0 +1,241 @@ +/* Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_INSTS_BRANCH_HH__ +#define __ARCH_POWER_INSTS_BRANCH_HH__ + +#include "arch/power/insts/static_inst.hh" + +namespace PowerISA +{ + +/** + * Base class for instructions whose disassembly is not purely a + * function of the machine instruction (i.e., it depends on the + * PC). This class overrides the disassemble() method to check + * the PC and symbol table values before re-using a cached + * disassembly string. This is necessary for branches and jumps, + * where the disassembly string includes the target address (which + * may depend on the PC and/or symbol table). + */ +class PCDependentDisassembly : public PowerStaticInst +{ + protected: + /// Cached program counter from last disassembly + mutable Addr cachedPC; + /// Cached symbol table pointer from last disassembly + mutable const SymbolTable *cachedSymtab; + + /// Constructor + PCDependentDisassembly(const char *mnem, ExtMachInst _machInst, + OpClass __opClass) + : PowerStaticInst(mnem, _machInst, __opClass), + cachedPC(0), cachedSymtab(0) + { + } + + const std::string & + disassemble(Addr pc, const SymbolTable *symtab) const; +}; + +/** + * Base class for unconditional, PC-relative branches. + */ +class BranchPCRel : public PCDependentDisassembly +{ + protected: + + /// Displacement + uint32_t disp; + + /// Constructor. + BranchPCRel(const char *mnem, MachInst _machInst, OpClass __opClass) + : PCDependentDisassembly(mnem, _machInst, __opClass), + disp(machInst.li << 2) + { + // If bit 26 is 1 then sign extend + if (disp & 0x2000000) { + disp |= 0xfc000000; + } + } + + Addr branchTarget(Addr pc) const; + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +/** + * Base class for unconditional, non PC-relative branches. + */ +class BranchNonPCRel : public PCDependentDisassembly +{ + protected: + + /// Target address + uint32_t targetAddr; + + /// Constructor. + BranchNonPCRel(const char *mnem, MachInst _machInst, OpClass __opClass) + : PCDependentDisassembly(mnem, _machInst, __opClass), + targetAddr(machInst.li << 2) + { + // If bit 26 is 1 then sign extend + if (targetAddr & 0x2000000) { + targetAddr |= 0xfc000000; + } + } + + Addr branchTarget(Addr pc) const; + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +/** + * Base class for conditional branches. + */ +class BranchCond : public PCDependentDisassembly +{ + protected: + + /// Fields needed for conditions + uint32_t bo; + uint32_t bi; + + /// Constructor. + BranchCond(const char *mnem, MachInst _machInst, OpClass __opClass) + : PCDependentDisassembly(mnem, _machInst, __opClass), + bo(machInst.bo), + bi(machInst.bi) + { + } + + inline bool + ctrOk(uint32_t& ctr) const + { + bool ctr_ok; + if (bo & 4) { + ctr_ok = true; + } else { + ctr--; + if (ctr != 0) { + ctr_ok = ((bo & 2) == 0); + } else { + ctr_ok = ((bo & 2) != 0); + } + } + return ctr_ok; + } + + inline bool + condOk(uint32_t cr) const + { + bool cond_ok; + if (bo & 16) { + cond_ok = true; + } else { + cond_ok = (((cr >> (31 - bi)) & 1) == ((bo >> 3) & 1)); + } + return cond_ok; + } +}; + +/** + * Base class for conditional, PC-relative branches. + */ +class BranchPCRelCond : public BranchCond +{ + protected: + + /// Displacement + uint32_t disp; + + /// Constructor. + BranchPCRelCond(const char *mnem, MachInst _machInst, OpClass __opClass) + : BranchCond(mnem, _machInst, __opClass), + disp(machInst.bd << 2) + { + // If bit 16 is 1 then sign extend + if (disp & 0x8000) { + disp |= 0xffff0000; + } + } + + Addr branchTarget(Addr pc) const; + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +/** + * Base class for conditional, non PC-relative branches. + */ +class BranchNonPCRelCond : public BranchCond +{ + protected: + + /// Target address + uint32_t targetAddr; + + /// Constructor. + BranchNonPCRelCond(const char *mnem, MachInst _machInst, OpClass __opClass) + : BranchCond(mnem, _machInst, __opClass), + targetAddr(machInst.bd << 2) + { + // If bit 16 is 1 then sign extend + if (targetAddr & 0x8000) { + targetAddr |= 0xffff0000; + } + } + + Addr branchTarget(Addr pc) const; + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +/** + * Base class for conditional, register-based branches + */ +class BranchRegCond : public BranchCond +{ + protected: + + /// Constructor. + BranchRegCond(const char *mnem, MachInst _machInst, OpClass __opClass) + : BranchCond(mnem, _machInst, __opClass) + { + } + + Addr branchTarget(ThreadContext *tc) const; + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +} // PowerISA namespace + +#endif //__ARCH_POWER_INSTS_BRANCH_HH__ diff --git a/src/arch/power/insts/condition.cc b/src/arch/power/insts/condition.cc new file mode 100644 index 000000000..0a942a982 --- /dev/null +++ b/src/arch/power/insts/condition.cc @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#include "arch/power/insts/condition.hh" + +using namespace PowerISA; + +std::string +CondLogicOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Format is <mnemonic> bt, ba, bb + ss << bt << ", " << ba << ", " << bb; + + return ss.str(); +} + +std::string +CondMoveOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Format is <mnemonic> bf, bfa + ss << bf << ", " << bfa; + + return ss.str(); +} diff --git a/src/arch/power/insts/condition.hh b/src/arch/power/insts/condition.hh new file mode 100644 index 000000000..a23667d9e --- /dev/null +++ b/src/arch/power/insts/condition.hh @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_INSTS_CONDITION_HH__ +#define __ARCH_POWER_INSTS_CONDITION_HH__ + +#include "arch/power/insts/static_inst.hh" +#include "base/cprintf.hh" + +namespace PowerISA +{ + +/** + * Class for condition register logical operations. + */ +class CondLogicOp : public PowerStaticInst +{ + protected: + + uint32_t ba; + uint32_t bb; + uint32_t bt; + + /// Constructor + CondLogicOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : PowerStaticInst(mnem, _machInst, __opClass), + ba(machInst.ba), + bb(machInst.bb), + bt(machInst.bt) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +/** + * Class for condition register move operations. + */ +class CondMoveOp : public PowerStaticInst +{ + protected: + + uint32_t bf; + uint32_t bfa; + + /// Constructor + CondMoveOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : PowerStaticInst(mnem, _machInst, __opClass), + bf(machInst.bf), + bfa(machInst.bfa) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +} // PowerISA namespace + +#endif //__ARCH_POWER_INSTS_CONDITION_HH__ diff --git a/src/arch/power/insts/floating.cc b/src/arch/power/insts/floating.cc new file mode 100644 index 000000000..f5c34ee2a --- /dev/null +++ b/src/arch/power/insts/floating.cc @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#include "arch/power/insts/floating.hh" + +using namespace PowerISA; + +std::string +FloatOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Print the first destination only + if (_numDestRegs > 0) { + printReg(ss, _destRegIdx[0]); + } + + // Print the (possibly) two source registers + if (_numSrcRegs > 0) { + if (_numDestRegs > 0) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + if (_numSrcRegs > 1) { + ss << ", "; + printReg(ss, _srcRegIdx[1]); + } + } + + return ss.str(); +} diff --git a/src/arch/power/insts/floating.hh b/src/arch/power/insts/floating.hh new file mode 100644 index 000000000..2b2668409 --- /dev/null +++ b/src/arch/power/insts/floating.hh @@ -0,0 +1,153 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + * Korey Sewell + */ + +#ifndef __ARCH_POWER_INSTS_FLOATING_HH__ +#define __ARCH_POWER_INSTS_FLOATING_HH__ + +#include "arch/power/insts/static_inst.hh" +#include "base/cprintf.hh" +#include "base/bitfield.hh" + +namespace PowerISA +{ + +/** + * Base class for floating point operations. + */ +class FloatOp : public PowerStaticInst +{ + protected: + + bool rcSet; + + /// Constructor + FloatOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : PowerStaticInst(mnem, _machInst, __opClass) + { + } + + // Test for NaN (maximum biased exponent & non-zero fraction) + inline bool + isNan(uint32_t val_bits) const + { + return ((bits(val_bits, 30, 23) == 0xFF) && bits(val_bits, 22, 0)); + } + + inline bool + isNan(uint64_t val_bits) const + { + return ((bits(val_bits, 62, 52) == 0x7FF) && bits(val_bits, 51, 0)); + } + + inline bool + isNan(float val) const + { + void *val_ptr = &val; + uint32_t val_bits = *(uint32_t *) val_ptr; + return isNan(val_bits); + } + + inline bool + isNan(double val) const + { + void *val_ptr = &val; + uint64_t val_bits = *(uint64_t *) val_ptr; + return isNan(val_bits); + } + + // Test for SNaN (NaN with high order bit of fraction set to 0) + inline bool + isSnan(uint32_t val_bits) const + { + return ((bits(val_bits, 30, 22) == 0x1FE) && bits(val_bits, 22, 0)); + } + + // Test for QNaN (NaN with high order bit of fraction set to 1) + inline bool + isQnan(uint32_t val_bits) const + { + return (bits(val_bits, 30, 22) == 0x1FF); + } + + // Test for infinity (maximum biased exponent and zero fraction) + inline bool + isInfinity(uint32_t val_bits) const + { + return ((bits(val_bits, 30, 23) == 0xFF) && !bits(val_bits, 22, 0)); + } + + // Test for normalized numbers (biased exponent in the range 1 to 254) + inline bool + isNormalized(uint32_t val_bits) const + { + return ((bits(val_bits, 30, 23) != 0xFF) && bits(val_bits, 22, 0)); + } + + // Test for denormalized numbers (biased exponent of zero and + // non-zero fraction) + inline bool + isDenormalized(uint32_t val_bits) const + { + return (!bits(val_bits, 30, 23) && bits(val_bits, 22, 0)); + } + + // Test for zero (biased exponent of zero and fraction of zero) + inline bool + isZero(uint32_t val_bits) const + { + return (!bits(val_bits, 30, 23) && !bits(val_bits, 22, 0)); + } + + // Test for negative + inline bool + isNegative(uint32_t val_bits) const + { + return (bits(val_bits, 31)); + } + + // Compute the CR field + inline uint32_t + makeCRField(double a, double b) const + { + uint32_t c = 0; + if (isNan(a) || isNan(b)) { c = 0x1; } + else if (a < b) { c = 0x8; } + else if (a > b) { c = 0x4; } + else { c = 0x2; } + return c; + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +} // PowerISA namespace + +#endif //__ARCH_POWER_INSTS_FLOATING_HH__ diff --git a/src/arch/power/insts/integer.cc b/src/arch/power/insts/integer.cc new file mode 100644 index 000000000..1f81a15dc --- /dev/null +++ b/src/arch/power/insts/integer.cc @@ -0,0 +1,170 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#include "arch/power/insts/integer.hh" + +using namespace std; +using namespace PowerISA; + +string +IntOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + bool printDest = true; + bool printSrcs = true; + bool printSecondSrc = true; + + // Generate the correct mnemonic + string myMnemonic(mnemonic); + + // Special cases + if (!myMnemonic.compare("or") && _srcRegIdx[0] == _srcRegIdx[1]) { + myMnemonic = "mr"; + printSecondSrc = false; + } else if (!myMnemonic.compare("mtlr") || !myMnemonic.compare("cmpi")) { + printDest = false; + } else if (!myMnemonic.compare("mflr")) { + printSrcs = false; + } + + // Additional characters depending on isa bits being set + if (oeSet) myMnemonic = myMnemonic + "o"; + if (rcSet) myMnemonic = myMnemonic + "."; + ccprintf(ss, "%-10s ", myMnemonic); + + // Print the first destination only + if (_numDestRegs > 0 && printDest) { + printReg(ss, _destRegIdx[0]); + } + + // Print the (possibly) two source registers + if (_numSrcRegs > 0 && printSrcs) { + if (_numDestRegs > 0 && printDest) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + if (_numSrcRegs > 1 && printSecondSrc) { + ss << ", "; + printReg(ss, _srcRegIdx[1]); + } + } + + return ss.str(); +} + + +string +IntImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + + // Generate the correct mnemonic + string myMnemonic(mnemonic); + + // Special cases + if (!myMnemonic.compare("addi") && _numSrcRegs == 0) { + myMnemonic = "li"; + } else if (!myMnemonic.compare("addis") && _numSrcRegs == 0) { + myMnemonic = "lis"; + } + ccprintf(ss, "%-10s ", myMnemonic); + + // Print the first destination only + if (_numDestRegs > 0) { + printReg(ss, _destRegIdx[0]); + } + + // Print the source register + if (_numSrcRegs > 0) { + if (_numDestRegs > 0) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + } + + // Print the immediate value last + ss << ", " << (int32_t)imm; + + return ss.str(); +} + + +string +IntShiftOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Print the first destination only + if (_numDestRegs > 0) { + printReg(ss, _destRegIdx[0]); + } + + // Print the first source register + if (_numSrcRegs > 0) { + if (_numDestRegs > 0) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + } + + // Print the shift + ss << ", " << sh; + + return ss.str(); +} + + +string +IntRotateOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Print the first destination only + if (_numDestRegs > 0) { + printReg(ss, _destRegIdx[0]); + } + + // Print the first source register + if (_numSrcRegs > 0) { + if (_numDestRegs > 0) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + } + + // Print the shift, mask begin and mask end + ss << ", " << sh << ", " << mb << ", " << me; + + return ss.str(); +} diff --git a/src/arch/power/insts/integer.hh b/src/arch/power/insts/integer.hh new file mode 100644 index 000000000..b4b96d5dc --- /dev/null +++ b/src/arch/power/insts/integer.hh @@ -0,0 +1,176 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_INSTS_INTEGER_HH__ +#define __ARCH_POWER_INSTS_INTEGER_HH__ + +#include "arch/power/insts/static_inst.hh" +#include "base/cprintf.hh" +#include "base/bitfield.hh" + +namespace PowerISA +{ + +/** + * We provide a base class for integer operations and then inherit for + * several other classes. These specialise for instructions using immediate + * values and also rotate instructions. We also need to have versions that + * consider the Rc and OE bits. + */ + +/** + * Base class for integer operations. + */ +class IntOp : public PowerStaticInst +{ + protected: + + bool rcSet; + bool oeSet; + + // Needed for srawi only + uint32_t sh; + + /// Constructor + IntOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : PowerStaticInst(mnem, _machInst, __opClass), + rcSet(false), oeSet(false) + { + } + + /* Compute the CR (condition register) field using signed comparison */ + inline uint32_t + makeCRField(int32_t a, int32_t b, uint32_t xerSO) const + { + uint32_t c = xerSO; + + /* We've pre-shifted the immediate values here */ + if (a < b) { c += 0x8; } + else if (a > b) { c += 0x4; } + else { c += 0x2; } + return c; + } + + /* Compute the CR (condition register) field using unsigned comparison */ + inline uint32_t + makeCRField(uint32_t a, uint32_t b, uint32_t xerSO) const + { + uint32_t c = xerSO; + + /* We've pre-shifted the immediate values here */ + if (a < b) { c += 0x8; } + else if (a > b) { c += 0x4; } + else { c += 0x2; } + return c; + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + + +/** + * Class for integer immediate (signed and unsigned) operations. + */ +class IntImmOp : public IntOp +{ + protected: + + int32_t imm; + uint32_t uimm; + + /// Constructor + IntImmOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : IntOp(mnem, _machInst, __opClass), + imm(sext<16>(machInst.si)), + uimm(machInst.si) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + + +/** + * Class for integer operations with a shift. + */ +class IntShiftOp : public IntOp +{ + protected: + + uint32_t sh; + + /// Constructor + IntShiftOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : IntOp(mnem, _machInst, __opClass), + sh(machInst.sh) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + + +/** + * Class for integer rotate operations. + */ +class IntRotateOp : public IntShiftOp +{ + protected: + + uint32_t mb; + uint32_t me; + uint32_t fullMask; + + /// Constructor + IntRotateOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : IntShiftOp(mnem, _machInst, __opClass), + mb(machInst.mb), + me(machInst.me) + { + if (me >= mb) { + fullMask = mask(31 - mb, 31 - me); + } else { + fullMask = ~mask(31 - (me + 1), 31 - (mb - 1)); + } + } + + uint32_t + rotateValue(uint32_t rs, uint32_t shift) const + { + uint32_t n = shift & 31; + return (rs << n) | (rs >> (32 - n)); + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +} // PowerISA namespace + +#endif //__ARCH_POWER_INSTS_INTEGER_HH__ diff --git a/src/arch/power/insts/mem.cc b/src/arch/power/insts/mem.cc new file mode 100644 index 000000000..447efa2f4 --- /dev/null +++ b/src/arch/power/insts/mem.cc @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#include "arch/power/insts/mem.hh" +#include "base/loader/symtab.hh" + +using namespace PowerISA; + +std::string +MemOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + return csprintf("%-10s", mnemonic); +} + +std::string +MemDispOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Print the destination only for a load + if (!flags[IsStore]) { + if (_numDestRegs > 0) { + + // If the instruction updates the source register with the + // EA, then this source register is placed in position 0, + // therefore we print the last destination register. + printReg(ss, _destRegIdx[_numDestRegs-1]); + } + } + + // Print the data register for a store + else { + printReg(ss, _srcRegIdx[1]); + } + + // Print the displacement + ss << ", " << (int32_t)disp; + + // Print the address register + ss << "("; + printReg(ss, _srcRegIdx[0]); + ss << ")"; + + return ss.str(); +} diff --git a/src/arch/power/insts/mem.hh b/src/arch/power/insts/mem.hh new file mode 100644 index 000000000..329dafe57 --- /dev/null +++ b/src/arch/power/insts/mem.hh @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_MEM_HH__ +#define __ARCH_POWER_MEM_HH__ + +#include "arch/power/insts/static_inst.hh" + +namespace PowerISA +{ + +/** + * Base class for memory operations. + */ +class MemOp : public PowerStaticInst +{ + protected: + + /// Memory request flags. See mem_req_base.hh. + unsigned memAccessFlags; + /// Pointer to EAComp object. + const StaticInstPtr eaCompPtr; + /// Pointer to MemAcc object. + const StaticInstPtr memAccPtr; + + /// Constructor + MemOp(const char *mnem, MachInst _machInst, OpClass __opClass, + StaticInstPtr _eaCompPtr = nullStaticInstPtr, + StaticInstPtr _memAccPtr = nullStaticInstPtr) + : PowerStaticInst(mnem, _machInst, __opClass), + memAccessFlags(0), + eaCompPtr(_eaCompPtr), + memAccPtr(_memAccPtr) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + + +/** + * Class for memory operations with displacement. + */ +class MemDispOp : public MemOp +{ + protected: + + int16_t disp; + + /// Constructor + MemDispOp(const char *mnem, MachInst _machInst, OpClass __opClass, + StaticInstPtr _eaCompPtr = nullStaticInstPtr, + StaticInstPtr _memAccPtr = nullStaticInstPtr) + : MemOp(mnem, _machInst, __opClass, _eaCompPtr, _memAccPtr), + disp(machInst.d) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +} // PowerISA namespace + +#endif //__ARCH_POWER_INSTS_MEM_HH__ diff --git a/src/arch/power/insts/misc.cc b/src/arch/power/insts/misc.cc new file mode 100644 index 000000000..913030b61 --- /dev/null +++ b/src/arch/power/insts/misc.cc @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#include "arch/power/insts/misc.hh" + +using namespace PowerISA; + +std::string +MiscOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Print the first destination only + if (_numDestRegs > 0) { + printReg(ss, _destRegIdx[0]); + } + + // Print the (possibly) two source registers + if (_numSrcRegs > 0) { + if (_numDestRegs > 0) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + if (_numSrcRegs > 1) { + ss << ", "; + printReg(ss, _srcRegIdx[1]); + } + } + + return ss.str(); +} diff --git a/src/arch/power/insts/misc.hh b/src/arch/power/insts/misc.hh new file mode 100644 index 000000000..dd4941b93 --- /dev/null +++ b/src/arch/power/insts/misc.hh @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_INSTS_MISC_HH__ +#define __ARCH_POWER_INSTS_MISC_HH__ + +#include "arch/power/insts/static_inst.hh" + +namespace PowerISA +{ + +/** + * Class for misc operations. + */ +class MiscOp : public PowerStaticInst +{ + protected: + + /// Constructor + MiscOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : PowerStaticInst(mnem, _machInst, __opClass) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +} // PowerISA namespace + +#endif //__ARCH_POWER_INSTS_MISC_HH__ diff --git a/src/arch/power/insts/static_inst.cc b/src/arch/power/insts/static_inst.cc new file mode 100644 index 000000000..1982744bf --- /dev/null +++ b/src/arch/power/insts/static_inst.cc @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#include "arch/power/insts/static_inst.hh" + +using namespace PowerISA; + +void +PowerStaticInst::printReg(std::ostream &os, int reg) const +{ + if (reg < FP_Base_DepTag) { + ccprintf(os, "r%d", reg); + } else if (reg < Ctrl_Base_DepTag) { + ccprintf(os, "f%d", reg - FP_Base_DepTag); + } else { + switch (reg - Ctrl_Base_DepTag) { + case 0: ccprintf(os, "cr"); break; + case 1: ccprintf(os, "xer"); break; + case 2: ccprintf(os, "lr"); break; + case 3: ccprintf(os, "ctr"); break; + default: ccprintf(os, "unknown_reg"); + } + } +} + +std::string +PowerStaticInst::generateDisassembly(Addr pc, + const SymbolTable *symtab) const +{ + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + return ss.str(); +} diff --git a/src/arch/power/insts/static_inst.hh b/src/arch/power/insts/static_inst.hh new file mode 100644 index 000000000..399e75371 --- /dev/null +++ b/src/arch/power/insts/static_inst.hh @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_INSTS_STATICINST_HH__ +#define __ARCH_POWER_INSTS_STATICINST_HH__ + +#include "base/trace.hh" +#include "cpu/static_inst.hh" + +namespace PowerISA +{ + +class PowerStaticInst : public StaticInst +{ + protected: + + // Constructor + PowerStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass) + : StaticInst(mnem, _machInst, __opClass) + { + } + + // Insert a condition value into a CR (condition register) field + inline uint32_t + insertCRField(uint32_t cr, uint32_t bf, uint32_t value) const + { + uint32_t bits = value << ((7 - bf) * 4); + uint32_t mask = ~(0xf << ((7 - bf) * 4)); + return (cr & mask) | bits; + } + + /// Print a register name for disassembly given the unique + /// dependence tag number (FP or int). + void + printReg(std::ostream &os, int reg) const; + + std::string + generateDisassembly(Addr pc, const SymbolTable *symtab) const; +}; + +} // PowerISA namespace + +#endif //__ARCH_POWER_INSTS_STATICINST_HH__ diff --git a/src/arch/power/isa.hh b/src/arch/power/isa.hh new file mode 100644 index 000000000..ba1b5018d --- /dev/null +++ b/src/arch/power/isa.hh @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2009 The Regents of The University of Michigan + * Copyright (c) 2009 The University of Edinburgh + * 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 + */ + +#ifndef __ARCH_POWER_ISA_HH__ +#define __ARCH_POWER_ISA_HH__ + +#include "arch/power/registers.hh" +#include "arch/power/types.hh" +#include "base/misc.hh" + +class ThreadContext; +class Checkpoint; +class EventManager; + +namespace PowerISA +{ + +class ISA +{ + protected: + MiscReg dummy; + MiscReg miscRegs[NumMiscRegs]; + + public: + void + clear() + { + } + + MiscReg + readMiscRegNoEffect(int misc_reg) + { + fatal("Power does not currently have any misc regs defined\n"); + return dummy; + } + + MiscReg + readMiscReg(int misc_reg, ThreadContext *tc) + { + fatal("Power does not currently have any misc regs defined\n"); + return dummy; + } + + void + setMiscRegNoEffect(int misc_reg, const MiscReg &val) + { + fatal("Power does not currently have any misc regs defined\n"); + } + + void + setMiscReg(int misc_reg, const MiscReg &val, ThreadContext *tc) + { + fatal("Power does not currently have any misc regs defined\n"); + } + + int + flattenIntIndex(int reg) + { + return reg; + } + + int + flattenFloatIndex(int reg) + { + return reg; + } + + void + serialize(EventManager *em, std::ostream &os) + { + } + + void + unserialize(EventManager *em, Checkpoint *cp, const std::string §ion) + { + } + + ISA() + { + clear(); + } +}; + +} // PowerISA namespace + +#endif // __ARCH_POWER_ISA_HH__ diff --git a/src/arch/power/isa/bitfields.isa b/src/arch/power/isa/bitfields.isa new file mode 100644 index 000000000..8cd323ad5 --- /dev/null +++ b/src/arch/power/isa/bitfields.isa @@ -0,0 +1,84 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Bitfield definitions. +// +// The endianness is the opposite to what's used here, so things +// are reversed sometimes. Not sure of a fix to this though... + +// Opcode fields +def bitfield OPCODE <31:26>; +def bitfield X_XO <10:0>; +def bitfield XO_XO <10:1>; +def bitfield A_XO <5:1>; + +// Register fields +def bitfield RA <20:16>; +def bitfield RB <15:11>; +def bitfield RS <25:21>; +def bitfield RT <25:21>; +def bitfield FRA <20:16>; +def bitfield FRB <15:11>; +def bitfield FRC <10:6>; +def bitfield FRS <25:21>; +def bitfield FRT <25:21>; + +// The record bit can be in two positions +// Used to enable setting of the condition register +def bitfield RC31 <0>; +def bitfield RC21 <10>; + +// Used to enable setting of the overflow flags +def bitfield OE <10>; + +// SPR field for mtspr instruction +def bitfield SPR <20:11>; + +// FXM field for mtcrf instruction +def bitfield FXM <19:12>; + +// Branch fields +def bitfield LK <0>; +def bitfield AA <1>; + +// Specifies a CR or FPSCR field +def bitfield BF <25:23>; + +// Fields for FPSCR manipulation instructions +def bitfield FLM <24:17>; +def bitfield L <25>; +def bitfield W <16>; +// Named so to avoid conflicts with range.hh +def bitfield U_FIELD <15:12>; + +// Field for specifying a bit in CR or FPSCR +def bitfield BT <25:21>; diff --git a/src/arch/power/isa/decoder.isa b/src/arch/power/isa/decoder.isa new file mode 100644 index 000000000..3252ff14a --- /dev/null +++ b/src/arch/power/isa/decoder.isa @@ -0,0 +1,593 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// The actual Power ISA decoder +// ------------------------------ +// +// I've used the Power ISA Book I v2.06 for instruction formats, +// opcode numbers, register names, etc. +// +decode OPCODE default Unknown::unknown() { + + format IntImmOp { + 10: cmpli({{ + Xer xer = XER; + uint32_t cr = makeCRField(Ra, (uint32_t)uimm, xer.so); + CR = insertCRField(CR, BF, cr); + }}); + 11: cmpi({{ + Xer xer = XER; + uint32_t cr = makeCRField(Ra.sw, (int32_t)imm, xer.so); + CR = insertCRField(CR, BF, cr); + }}); + } + + // Some instructions use bits 21 - 30, others 22 - 30. We have to use + // the larger size to account for all opcodes. For those that use the + // smaller value, the OE bit is bit 21. Therefore, we have two versions + // of each instruction: 1 with OE set, the other without. For an + // example see 'add' and 'addo'. + 31: decode XO_XO { + + // These instructions can all be reduced to the form + // Rt = src1 + src2 [+ CA], therefore we just give src1 and src2 + // (and, if necessary, CA) definitions and let the python script + // deal with setting things up correctly. We also give flags to + // say which control registers to set. + format IntSumOp { + 266: add({{ Ra }}, {{ Rb }}); + 40: subf({{ ~Ra }}, {{ Rb }}, {{ 1 }}); + 10: addc({{ Ra }}, {{ Rb }}, + computeCA = true); + 8: subfc({{ ~Ra }}, {{ Rb }}, {{ 1 }}, + true); + 104: neg({{ ~Ra }}, {{ 1 }}); + 138: adde({{ Ra }}, {{ Rb }}, {{ xer.ca }}, + true); + 234: addme({{ Ra }}, {{ (uint32_t)-1 }}, {{ xer.ca }}, + true); + 136: subfe({{ ~Ra }}, {{ Rb }}, {{ xer.ca }}, + true); + 232: subfme({{ ~Ra }}, {{ (uint32_t)-1 }}, {{ xer.ca }}, + true); + 202: addze({{ Ra }}, {{ xer.ca }}, + computeCA = true); + 200: subfze({{ ~Ra }}, {{ xer.ca }}, + computeCA = true); + } + + // Arithmetic instructions all use source registers Ra and Rb, + // with destination register Rt. + format IntArithOp { + 75: mulhw({{ int64_t prod = Ra.sq * Rb.sq; Rt = prod >> 32; }}); + 11: mulhwu({{ uint64_t prod = Ra.uq * Rb.uq; Rt = prod >> 32; }}); + 235: mullw({{ int64_t prod = Ra.sq * Rb.sq; Rt = prod; }}); + 747: mullwo({{ int64_t src1 = Ra.sq; int64_t src2 = Rb; int64_t prod = src1 * src2; Rt = prod; }}, + true); + + 491: divw({{ + int32_t src1 = Ra.sw; + int32_t src2 = Rb.sw; + if ((src1 != 0x80000000 || src2 != 0xffffffff) + && src2 != 0) { + Rt = src1 / src2; + } else { + Rt = 0; + } + }}); + + 1003: divwo({{ + int32_t src1 = Ra.sw; + int32_t src2 = Rb.sw; + if ((src1 != 0x80000000 || src2 != 0xffffffff) + && src2 != 0) { + Rt = src1 / src2; + } else { + Rt = 0; + divSetOV = true; + } + }}, + true); + + 459: divwu({{ + uint32_t src1 = Ra.sw; + uint32_t src2 = Rb.sw; + if (src2 != 0) { + Rt = src1 / src2; + } else { + Rt = 0; + } + }}); + + 971: divwuo({{ + uint32_t src1 = Ra.sw; + uint32_t src2 = Rb.sw; + if (src2 != 0) { + Rt = src1 / src2; + } else { + Rt = 0; + divSetOV = true; + } + }}, + true); + } + + // Integer logic instructions use source registers Rs and Rb, + // with destination register Ra. + format IntLogicOp { + 28: and({{ Ra = Rs & Rb; }}); + 316: xor({{ Ra = Rs ^ Rb; }}); + 476: nand({{ Ra = ~(Rs & Rb); }}); + 444: or({{ Ra = Rs | Rb; }}); + 124: nor({{ Ra = ~(Rs | Rb); }}); + 60: andc({{ Ra = Rs & ~Rb; }}); + 954: extsb({{ Ra = sext<8>(Rs); }}); + 284: eqv({{ Ra = ~(Rs ^ Rb); }}); + 412: orc({{ Ra = Rs | ~Rb; }}); + 922: extsh({{ Ra = sext<16>(Rs); }}); + 26: cntlzw({{ Ra = Rs == 0 ? 32 : 31 - findMsbSet(Rs); }}); + 508: cmpb({{ + uint32_t val = 0; + for (int n = 0; n < 32; n += 8) { + if(bits(Rs, n, n+7) == bits(Rb, n, n+7)) { + val = insertBits(val, n, n+7, 0xff); + } + } + Ra = val; + }}); + + 24: slw({{ + if (Rb & 0x20) { + Ra = 0; + } else { + Ra = Rs << (Rb & 0x1f); + } + }}); + + 536: srw({{ + if (Rb & 0x20) { + Ra = 0; + } else { + Ra = Rs >> (Rb & 0x1f); + } + }}); + + 792: sraw({{ + bool shiftSetCA = false; + int32_t s = Rs; + if (Rb == 0) { + Ra = Rs; + shiftSetCA = true; + } else if (Rb & 0x20) { + if (s < 0) { + Ra = (uint32_t)-1; + if (s & 0x7fffffff) { + shiftSetCA = true; + } else { + shiftSetCA = false; + } + } else { + Ra = 0; + shiftSetCA = false; + } + } else { + Ra = s >> (Rb & 0x1f); + if (s < 0 && (s << (32 - (Rb & 0x1f))) != 0) { + shiftSetCA = true; + } else { + shiftSetCA = false; + } + } + Xer xer1 = XER; + if (shiftSetCA) { + xer1.ca = 1; + } else { + xer1.ca = 0; + } + XER = xer1; + }}); + } + + // Integer logic instructions with a shift value. + format IntShiftOp { + 824: srawi({{ + bool shiftSetCA = false; + if (sh == 0) { + Ra = Rs; + shiftSetCA = false; + } else { + int32_t s = Rs; + Ra = s >> sh; + if (s < 0 && (s << (32 - sh)) != 0) { + shiftSetCA = true; + } else { + shiftSetCA = false; + } + } + Xer xer1 = XER; + if (shiftSetCA) { + xer1.ca = 1; + } else { + xer1.ca = 0; + } + XER = xer1; + }}); + } + + // Generic integer format instructions. + format IntOp { + 0: cmp({{ + Xer xer = XER; + uint32_t cr = makeCRField(Ra.sw, Rb.sw, xer.so); + CR = insertCRField(CR, BF, cr); + }}); + 32: cmpl({{ + Xer xer = XER; + uint32_t cr = makeCRField(Ra, Rb, xer.so); + CR = insertCRField(CR, BF, cr); + }}); + 144: mtcrf({{ + uint32_t mask = 0; + for (int i = 0; i < 8; ++i) { + if (((FXM >> i) & 0x1) == 0x1) { + mask |= 0xf << (4 * i); + } + } + CR = (Rs & mask) | (CR & ~mask); + }}); + 19: mfcr({{ Rt = CR; }}); + 339: decode SPR { + 0x20: mfxer({{ Rt = XER; }}); + 0x100: mflr({{ Rt = LR; }}); + 0x120: mfctr({{ Rt = CTR; }}); + } + 467: decode SPR { + 0x20: mtxer({{ XER = Rs; }}); + 0x100: mtlr({{ LR = Rs; }}); + 0x120: mtctr({{ CTR = Rs; }}); + } + } + + // All loads with an index register. The non-update versions + // all use the value 0 if Ra == R0, not the value contained in + // R0. Others update Ra with the effective address. In all cases, + // Ra and Rb are source registers, Rt is the destintation. + format LoadIndexOp { + 87: lbzx({{ Rt = Mem.ub; }}); + 279: lhzx({{ Rt = Mem.uh; }}); + 343: lhax({{ Rt = Mem.sh; }}); + 23: lwzx({{ Rt = Mem; }}); + 341: lwax({{ Rt = Mem.sw; }}); + 20: lwarx({{ Rt = Mem.sw; Rsv = 1; RsvLen = 4; RsvAddr = EA; }}); + 535: lfsx({{ Ft.sf = Mem.sf; }}); + 599: lfdx({{ Ft = Mem.df; }}); + 855: lfiwax({{ Ft.uw = Mem; }}); + } + + format LoadIndexUpdateOp { + 119: lbzux({{ Rt = Mem.ub; }}); + 311: lhzux({{ Rt = Mem.uh; }}); + 375: lhaux({{ Rt = Mem.sh; }}); + 55: lwzux({{ Rt = Mem; }}); + 373: lwaux({{ Rt = Mem.sw; }}); + 567: lfsux({{ Ft.sf = Mem.sf; }}); + 631: lfdux({{ Ft = Mem.df; }}); + } + + format StoreIndexOp { + 215: stbx({{ Mem.ub = Rs.ub; }}); + 407: sthx({{ Mem.uh = Rs.uh; }}); + 151: stwx({{ Mem = Rs; }}); + 150: stwcx({{ + bool store_performed = false; + if (Rsv) { + if (RsvLen == 4) { + if (RsvAddr == EA) { + Mem = Rs; + store_performed = true; + } + } + } + Xer xer = XER; + Cr cr = CR; + cr.cr0 = ((store_performed ? 0x2 : 0x0) | xer.so); + CR = cr; + Rsv = 0; + }}); + 663: stfsx({{ Mem.sf = Fs.sf; }}); + 727: stfdx({{ Mem.df = Fs; }}); + 983: stfiwx({{ Mem = Fs.uw; }}); + } + + format StoreIndexUpdateOp { + 247: stbux({{ Mem.ub = Rs.ub; }}); + 439: sthux({{ Mem.uh = Rs.uh; }}); + 183: stwux({{ Mem = Rs; }}); + 695: stfsux({{ Mem.sf = Fs.sf; }}); + 759: stfdux({{ Mem.df = Fs; }}); + } + + // These instructions all provide data cache hints + format MiscOp { + 278: dcbt({{ }}); + 246: dcbtst({{ }}); + 598: sync({{ }}, [ IsMemBarrier ]); + 854: eieio({{ }}, [ IsMemBarrier ]); + } + } + + format IntImmArithCheckRaOp { + 14: addi({{ Rt = Ra + imm; }}, + {{ Rt = imm }}); + 15: addis({{ Rt = Ra + (imm << 16); }}, + {{ Rt = imm << 16; }}); + } + + format IntImmArithOp { + 12: addic({{ uint32_t src = Ra; Rt = src + imm; }}, + [computeCA]); + 13: addic_({{ uint32_t src = Ra; Rt = src + imm; }}, + [computeCA, computeCR0]); + 8: subfic({{ int32_t src = ~Ra; Rt = src + imm + 1; }}, + [computeCA]); + 7: mulli({{ + int32_t src = Ra.sw; + int64_t prod = src * imm; + Rt = (uint32_t)prod; + }}); + } + + format IntImmLogicOp { + 24: ori({{ Ra = Rs | uimm; }}); + 25: oris({{ Ra = Rs | (uimm << 16); }}); + 26: xori({{ Ra = Rs ^ uimm; }}); + 27: xoris({{ Ra = Rs ^ (uimm << 16); }}); + 28: andi_({{ Ra = Rs & uimm; }}, + true); + 29: andis_({{ Ra = Rs & (uimm << 16); }}, + true); + } + + 16: decode AA { + + // Conditionally branch relative to PC based on CR and CTR. + format BranchPCRelCondCtr { + 0: bc({{ NPC = PC + disp; }}); + } + + // Conditionally branch to fixed address based on CR and CTR. + format BranchNonPCRelCondCtr { + 1: bca({{ NPC = targetAddr; }}); + } + } + + 18: decode AA { + + // Unconditionally branch relative to PC. + format BranchPCRel { + 0: b({{ NPC = PC + disp; }}); + } + + // Unconditionally branch to fixed address. + format BranchNonPCRel { + 1: ba({{ NPC = targetAddr; }}); + } + } + + 19: decode XO_XO { + + // Conditionally branch to address in LR based on CR and CTR. + format BranchLrCondCtr { + 16: bclr({{ NPC = LR & 0xfffffffc; }}); + } + + // Conditionally branch to address in CTR based on CR. + format BranchCtrCond { + 528: bcctr({{ NPC = CTR & 0xfffffffc; }}); + } + + // Condition register manipulation instructions. + format CondLogicOp { + 257: crand({{ + uint32_t crBa = bits(CR, 31 - ba); + uint32_t crBb = bits(CR, 31 - bb); + CR = insertBits(CR, 31 - bt, crBa & crBb); + }}); + 449: cror({{ + uint32_t crBa = bits(CR, 31 - ba); + uint32_t crBb = bits(CR, 31 - bb); + CR = insertBits(CR, 31 - bt, crBa | crBb); + }}); + 255: crnand({{ + uint32_t crBa = bits(CR, 31 - ba); + uint32_t crBb = bits(CR, 31 - bb); + CR = insertBits(CR, 31 - bt, !(crBa & crBb)); + }}); + 193: crxor({{ + uint32_t crBa = bits(CR, 31 - ba); + uint32_t crBb = bits(CR, 31 - bb); + CR = insertBits(CR, 31 - bt, crBa ^ crBb); + }}); + 33: crnor({{ + uint32_t crBa = bits(CR, 31 - ba); + uint32_t crBb = bits(CR, 31 - bb); + CR = insertBits(CR, 31 - bt, !(crBa | crBb)); + }}); + 289: creqv({{ + uint32_t crBa = bits(CR, 31 - ba); + uint32_t crBb = bits(CR, 31 - bb); + CR = insertBits(CR, 31 - bt, crBa == crBb); + }}); + 129: crandc({{ + uint32_t crBa = bits(CR, 31 - ba); + uint32_t crBb = bits(CR, 31 - bb); + CR = insertBits(CR, 31 - bt, crBa & !crBb); + }}); + 417: crorc({{ + uint32_t crBa = bits(CR, 31 - ba); + uint32_t crBb = bits(CR, 31 - bb); + CR = insertBits(CR, 31 - bt, crBa | !crBb); + }}); + } + format CondMoveOp { + 0: mcrf({{ + uint32_t crBfa = bits(CR, 31 - bfa*4, 28 - bfa*4); + CR = insertBits(CR, 31 - bf*4, 28 - bf*4, crBfa); + }}); + } + format MiscOp { + 150: isync({{ }}, [ IsSerializeAfter ]); + } + } + + format IntRotateOp { + 21: rlwinm({{ Ra = rotateValue(Rs, sh) & fullMask; }}); + 23: rlwnm({{ Ra = rotateValue(Rs, Rb) & fullMask; }}); + 20: rlwimi({{ Ra = (rotateValue(Rs, sh) & fullMask) | (Ra & ~fullMask); }}); + } + + format LoadDispOp { + 34: lbz({{ Rt = Mem.ub; }}); + 40: lhz({{ Rt = Mem.uh; }}); + 42: lha({{ Rt = Mem.sh; }}); + 32: lwz({{ Rt = Mem; }}); + 58: lwa({{ Rt = Mem.sw; }}, + {{ EA = Ra + (disp & 0xfffffffc); }}, + {{ EA = disp & 0xfffffffc; }}); + 48: lfs({{ Ft.sf = Mem.sf; }}); + 50: lfd({{ Ft = Mem.df; }}); + } + + format LoadDispUpdateOp { + 35: lbzu({{ Rt = Mem.ub; }}); + 41: lhzu({{ Rt = Mem.uh; }}); + 43: lhau({{ Rt = Mem.sh; }}); + 33: lwzu({{ Rt = Mem; }}); + 49: lfsu({{ Ft.sf = Mem.sf; }}); + 51: lfdu({{ Ft = Mem.df; }}); + } + + format StoreDispOp { + 38: stb({{ Mem.ub = Rs.ub; }}); + 44: sth({{ Mem.uh = Rs.uh; }}); + 36: stw({{ Mem = Rs; }}); + 52: stfs({{ Mem.sf = Fs.sf; }}); + 54: stfd({{ Mem.df = Fs; }}); + } + + format StoreDispUpdateOp { + 39: stbu({{ Mem.ub = Rs.ub; }}); + 45: sthu({{ Mem.uh = Rs.uh; }}); + 37: stwu({{ Mem = Rs; }}); + 53: stfsu({{ Mem.sf = Fs.sf; }}); + 55: stfdu({{ Mem.df = Fs; }}); + } + + 17: IntOp::sc({{ xc->syscall(R0); }}, + [ IsSyscall, IsNonSpeculative, IsSerializeAfter ]); + + format FloatArithOp { + 59: decode A_XO { + 21: fadds({{ Ft = Fa + Fb; }}); + 20: fsubs({{ Ft = Fa - Fb; }}); + 25: fmuls({{ Ft = Fa * Fc; }}); + 18: fdivs({{ Ft = Fa / Fb; }}); + 29: fmadds({{ Ft = (Fa * Fc) + Fb; }}); + 28: fmsubs({{ Ft = (Fa * Fc) - Fb; }}); + 31: fnmadds({{ Ft = -((Fa * Fc) + Fb); }}); + 30: fnmsubs({{ Ft = -((Fa * Fc) - Fb); }}); + } + } + + 63: decode A_XO { + format FloatArithOp { + 21: fadd({{ Ft = Fa + Fb; }}); + 20: fsub({{ Ft = Fa - Fb; }}); + 25: fmul({{ Ft = Fa * Fc; }}); + 18: fdiv({{ Ft = Fa / Fb; }}); + 29: fmadd({{ Ft = (Fa * Fc) + Fb; }}); + 28: fmsub({{ Ft = (Fa * Fc) - Fb; }}); + 31: fnmadd({{ Ft = -((Fa * Fc) + Fb); }}); + 30: fnmsub({{ Ft = -((Fa * Fc) - Fb); }}); + } + + default: decode XO_XO { + format FloatConvertOp { + 12: frsp({{ Ft.sf = Fb; }}); + 15: fctiwz({{ Ft.sw = (int32_t)trunc(Fb); }}); + } + + format FloatOp { + 0: fcmpu({{ + uint32_t c = makeCRField(Fa, Fb); + Fpscr fpscr = FPSCR; + fpscr.fprf.fpcc = c; + FPSCR = fpscr; + CR = insertCRField(CR, BF, c); + }}); + } + + format FloatRCCheckOp { + 72: fmr({{ Ft = Fb; }}); + 264: fabs({{ + Ft.uq = Fb.uq; + Ft.uq = insertBits(Ft.uq, 63, 0); }}); + 136: fnabs({{ + Ft.uq = Fb.uq; + Ft.uq = insertBits(Ft.uq, 63, 1); }}); + 40: fneg({{ Ft = -Fb; }}); + 8: fcpsgn({{ + Ft.uq = Fb.uq; + Ft.uq = insertBits(Ft.uq, 63, Fa.uq<63:63>); + }}); + 583: mffs({{ Ft.uq = FPSCR; }}); + 134: mtfsfi({{ + FPSCR = insertCRField(FPSCR, BF + (8 * (1 - W)), U_FIELD); + }}); + 711: mtfsf({{ + if (L == 1) { FPSCR = Fb.uq; } + else { + for (int i = 0; i < 8; ++i) { + if (bits(FLM, i) == 1) { + int k = 4 * (i + (8 * (1 - W))); + FPSCR = insertBits(FPSCR, k, k + 3, + bits(Fb.uq, k, k + 3)); + } + } + } + }}); + 70: mtfsb0({{ FPSCR = insertBits(FPSCR, 31 - BT, 0); }}); + 38: mtfsb1({{ FPSCR = insertBits(FPSCR, 31 - BT, 1); }}); + } + } + } +} diff --git a/src/arch/power/isa/formats/basic.isa b/src/arch/power/isa/formats/basic.isa new file mode 100644 index 000000000..adb5e7ef8 --- /dev/null +++ b/src/arch/power/isa/formats/basic.isa @@ -0,0 +1,103 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +// Declarations for execute() methods. +def template BasicExecDeclare {{ + Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const; +}}; + +// Basic instruction class declaration template. +def template BasicDeclare {{ + /** + * Static instruction class for "%(mnemonic)s". + */ + class %(class_name)s : public %(base_class)s + { + public: + /// Constructor. + %(class_name)s(ExtMachInst machInst); + %(BasicExecDeclare)s + }; +}}; + +// Basic instruction class constructor template. +def template BasicConstructor {{ + inline %(class_name)s::%(class_name)s(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) + { + %(constructor)s; + } +}}; + + +// Basic instruction class execute method template. +def template BasicExecute {{ + Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const + { + Fault fault = NoFault; + + %(op_decl)s; + %(op_rd)s; + %(code)s; + + if (fault == NoFault) + { + %(op_wb)s; + } + + return fault; + } +}}; + +// Basic decode template. +def template BasicDecode {{ + return new %(class_name)s(machInst); +}}; + +// Basic decode template, passing mnemonic in as string arg to constructor. +def template BasicDecodeWithMnemonic {{ + return new %(class_name)s("%(mnemonic)s", machInst); +}}; + +// Definitions of execute methods that panic. +def template BasicExecPanic {{ +Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const +{ + panic("Execute method called when it shouldn't!"); +} +}}; + +// The most basic instruction format... +def format BasicOp(code, *flags) {{ + iop = InstObjParams(name, Name, 'PowerStaticInst', code, flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = BasicDecode.subst(iop) + exec_output = BasicExecute.subst(iop) +}}; diff --git a/src/arch/power/isa/formats/branch.isa b/src/arch/power/isa/formats/branch.isa new file mode 100644 index 000000000..d51ed5c25 --- /dev/null +++ b/src/arch/power/isa/formats/branch.isa @@ -0,0 +1,222 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Control transfer instructions +// +// From the Power ISA Book I v2.06, page 33, the following rules should +// be obeyed by programmers: +// +// - Use branch instructions where LK == 1 only as subroutine calls. +// - Pair each subroutine call with a bclr instruction with BH == 00 +// that returns from the subroutine. +// - Do not use bclrl as a subroutine call. +// +// Therefore, I've flagged all versions that update the link register (LR) +// as calls, except bclrl (BranchLrCtrCond format) which is flagged as +// a return. + + +let {{ + +# Simple code to update link register (LR). +updateLrCode = 'LR = PC + 4;' + +}}; + +// Instructions that unconditionally branch relative to the current PC. +def format BranchPCRel(br_code, inst_flags = []) {{ + inst_flags += ('IsUncondControl', 'IsDirectControl') + basic_code = br_code + + # The version that does not update LR + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'BranchPCRel', basic_code, inst_flags, + CheckLkDecode, BasicConstructor) + + # The version that does the update + update_code = basic_code + updateLrCode + update_flags = inst_flags + [ 'IsCall' ] + (header_output_up, decoder_output_up, _, exec_output_up) = \ + GenAluOp(name, Name + 'UpdateLr', 'BranchPCRel', update_code, + update_flags, CheckLkDecode, BasicConstructor) + + # Add the outputs together + header_output += header_output_up + decoder_output += decoder_output_up + exec_output += exec_output_up +}}; + +// Instructions that unconditionally branch to a specific address. +def format BranchNonPCRel(br_code, inst_flags = []) {{ + inst_flags += ('IsUncondControl', 'IsDirectControl') + basic_code = br_code + + # The version that does not update LR + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'BranchNonPCRel', basic_code, inst_flags, + CheckLkDecode, BasicConstructor) + + # The version that does the update + update_code = basic_code + updateLrCode + update_flags = inst_flags + [ 'IsCall' ] + (header_output_up, decoder_output_up, _, exec_output_up) = \ + GenAluOp(name, Name + 'UpdateLr', 'BranchNonPCRel', update_code, + update_flags, CheckLkDecode, BasicConstructor) + + # Add the outputs together + header_output += header_output_up + decoder_output += decoder_output_up + exec_output += exec_output_up +}}; + +let {{ + +# Check the condition register (CR) allows the branch to be taken. +def GetCondCode(br_code): + cond_code = 'if(condOk(CR)) {\n' + cond_code += ' ' + br_code + '\n' + cond_code += '} else {\n' + cond_code += ' NPC = NPC;\n' + cond_code += '}\n' + return cond_code + +# Check the condition register (CR) and count register (CTR) allow the +# branch to be taken. Also, in certain situations, decrement the count +# register too. This takes place in ctrOk within BranchCond classes. +def GetCtrCondCode(br_code): + cond_code = 'uint32_t ctr = CTR;\n' + cond_code += 'bool ctr_ok = ctrOk(ctr);\n' + cond_code += 'bool cond_ok = condOk(CR);\n' + cond_code += 'if(ctr_ok && cond_ok) {\n' + cond_code += ' ' + br_code + '\n' + cond_code += '} else {\n' + cond_code += ' NPC = NPC;\n' + cond_code += '}\n' + cond_code += 'CTR = ctr;\n' + return cond_code + +}}; + +// Instructions that conditionally branch relative to the current PC based on +// the condition register (CR) and count register (CTR). +def format BranchPCRelCondCtr(br_code, inst_flags = []) {{ + inst_flags += ('IsCondControl', 'IsDirectControl') + basic_code = GetCtrCondCode(br_code) + + # The version that does not update LR + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'BranchPCRelCond', basic_code, inst_flags, + CheckLkDecode, BasicConstructor) + + # The version that does the update + update_code = basic_code + updateLrCode + update_flags = inst_flags + [ 'IsCall' ] + (header_output_up, decoder_output_up, _, exec_output_up) = \ + GenAluOp(name, Name + 'UpdateLr', 'BranchPCRelCond', update_code, + update_flags, CheckLkDecode, BasicConstructor) + + # Add the outputs together + header_output += header_output_up + decoder_output += decoder_output_up + exec_output += exec_output_up +}}; + +// Instructions that conditionally branch to a specific address based on the +// condition register (CR) and count register (CTR). +def format BranchNonPCRelCondCtr(br_code, inst_flags = []) {{ + inst_flags += ('IsCondControl', 'IsDirectControl') + basic_code = GetCtrCondCode(br_code) + + # The version that does not update LR + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'BranchNonPCRelCond', basic_code, inst_flags, + CheckLkDecode, BasicConstructor) + + # The version that does the update + update_code = basic_code + updateLrCode + update_flags = inst_flags + [ 'IsCall' ] + (header_output_up, decoder_output_up, _, exec_output_up) = \ + GenAluOp(name, Name + 'UpdateLr', 'BranchNonPCRelCond', update_code, + update_flags, CheckLkDecode, BasicConstructor) + + # Add the outputs together + header_output += header_output_up + decoder_output += decoder_output_up + exec_output += exec_output_up +}}; + +// Instructions that conditionally branch to the address in the link register +// (LR) based on the condition register (CR) and count register (CTR). +def format BranchLrCondCtr(br_code, inst_flags = []) {{ + inst_flags += ('IsCondControl', 'IsIndirectControl', 'IsReturn') + basic_code = GetCtrCondCode(br_code) + + # The version that does not update LR + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'BranchRegCond', basic_code, inst_flags, + CheckLkDecode, BasicConstructor) + + # The version that does the update + update_code = basic_code + updateLrCode + (header_output_up, decoder_output_up, _, exec_output_up) = \ + GenAluOp(name, Name + 'UpdateLr', 'BranchRegCond', update_code, + inst_flags, CheckLkDecode, BasicConstructor) + + # Add the outputs together + header_output += header_output_up + decoder_output += decoder_output_up + exec_output += exec_output_up +}}; + +// Instructions that conditionally branch to the address in the count register +// (CTR) based on the condition register (CR). +def format BranchCtrCond(br_code, inst_flags = []) {{ + inst_flags += ('IsCondControl', 'IsIndirectControl') + basic_code = GetCondCode(br_code) + + # The version that does not update LR + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'BranchRegCond', basic_code, inst_flags, + CheckLkDecode, BasicConstructor) + + # The version that does the update + update_code = basic_code + updateLrCode + update_flags = inst_flags + [ 'IsCall' ] + (header_output_up, decoder_output_up, _, exec_output_up) = \ + GenAluOp(name, Name + 'UpdateLr', 'BranchRegCond', update_code, + update_flags, CheckLkDecode, BasicConstructor) + + # Add the outputs together + header_output += header_output_up + decoder_output += decoder_output_up + exec_output += exec_output_up +}}; diff --git a/src/arch/power/isa/formats/condition.isa b/src/arch/power/isa/formats/condition.isa new file mode 100644 index 000000000..12ee7ae7d --- /dev/null +++ b/src/arch/power/isa/formats/condition.isa @@ -0,0 +1,47 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +// Logical instructions that manipulate the condition register +def format CondLogicOp(code, *flags) {{ + iop = InstObjParams(name, Name, 'CondLogicOp', code, flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = BasicDecode.subst(iop) + exec_output = BasicExecute.subst(iop) +}}; + +// Instructions that condition register fields +def format CondMoveOp(code, *flags) {{ + iop = InstObjParams(name, Name, 'CondMoveOp', code, flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = BasicDecode.subst(iop) + exec_output = BasicExecute.subst(iop) +}}; diff --git a/src/arch/power/isa/formats/formats.isa b/src/arch/power/isa/formats/formats.isa new file mode 100644 index 000000000..ec2575196 --- /dev/null +++ b/src/arch/power/isa/formats/formats.isa @@ -0,0 +1,60 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//Templates from this format are used later +//Include the basic format +##include "basic.isa" + +//Include integer instructions +##include "integer.isa" + +//Include condition register instructions +##include "condition.isa" + +//Include utility functions +##include "util.isa" + +//Include the float formats +##include "fp.isa" + +//Include the mem format +##include "mem.isa" + +//Include the branch format +##include "branch.isa" + +//Include the misc format +##include "misc.isa" + +//Include the unimplemented format +##include "unimp.isa" + +//Include the unknown format +##include "unknown.isa" diff --git a/src/arch/power/isa/formats/fp.isa b/src/arch/power/isa/formats/fp.isa new file mode 100644 index 000000000..db917476e --- /dev/null +++ b/src/arch/power/isa/formats/fp.isa @@ -0,0 +1,132 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Floating Point operate instructions +// + + +let {{ + + readFPSCRCode = 'Fpscr fpscr = FPSCR;' + + computeCR1Code = ''' + Cr cr = CR; + cr.cr1 = (fpscr.fx << 3) | (fpscr.fex << 2) | + (fpscr.vx << 1) | fpscr.ox; + CR = cr; + ''' + +}}; + +// Primary format for floating point operate instructions: +def format FloatOp(code, inst_flags = []) {{ + iop = InstObjParams(name, Name, 'FloatOp', + {"code": code}, + inst_flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = BasicDecode.subst(iop) + exec_output = BasicExecute.subst(iop) +}}; + +// Floating point operations that compute the CR1 code if RC is set. No other +// special registers are touched using these operations. +def format FloatRCCheckOp(code, inst_flags = []) {{ + + # Code when Rc is set + code_rc1 = code + readFPSCRCode + computeCR1Code + + # Generate the first class + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'FloatOp', code, inst_flags, + CheckRcDecode, BasicConstructor) + + # Generate the second class + (header_output_rc1, decoder_output_rc1, _, exec_output_rc1) = \ + GenAluOp(name, Name + 'RcSet', 'FloatOp', code_rc1, inst_flags, + CheckRcDecode, IntRcConstructor) + + # Finally, add to the other outputs + header_output += header_output_rc1 + decoder_output += decoder_output_rc1 + exec_output += exec_output_rc1 +}}; + +// Floating point elementary arithmetic operations. Besides having two +// versions of each instruction for when Rc is set or not, we also have +// to alter lots of special registers depending on the result of the +// operation. The result is always in Ft.sf. +def format FloatArithOp(code, inst_flags = []) {{ + + # Code when Rc is set + code_rc1 = code + readFPSCRCode + computeCR1Code + + # Generate the first class + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'FloatOp', code, inst_flags, + CheckRcDecode, BasicConstructor) + + # Generate the second class + (header_output_rc1, decoder_output_rc1, _, exec_output_rc1) = \ + GenAluOp(name, Name + 'RcSet', 'FloatOp', code_rc1, inst_flags, + CheckRcDecode, IntRcConstructor) + + # Finally, add to the other outputs + header_output += header_output_rc1 + decoder_output += decoder_output_rc1 + exec_output += exec_output_rc1 +}}; + +// Floating point rounding and conversion operations. Besides having two +// versions of each instruction for when Rc is set or not, we also have +// to alter lots of special registers depending on the result of the +// operation. The result is always in Ft.sf. +def format FloatConvertOp(code, inst_flags = []) {{ + + # Code when Rc is set + code_rc1 = code + readFPSCRCode + computeCR1Code + + # Generate the first class + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'FloatOp', code, inst_flags, + CheckRcDecode, BasicConstructor) + + # Generate the second class + (header_output_rc1, decoder_output_rc1, _, exec_output_rc1) = \ + GenAluOp(name, Name + 'RcSet', 'FloatOp', code_rc1, inst_flags, + CheckRcDecode, IntRcConstructor) + + # Finally, add to the other outputs + header_output += header_output_rc1 + decoder_output += decoder_output_rc1 + exec_output += exec_output_rc1 +}}; diff --git a/src/arch/power/isa/formats/integer.isa b/src/arch/power/isa/formats/integer.isa new file mode 100644 index 000000000..0766826ec --- /dev/null +++ b/src/arch/power/isa/formats/integer.isa @@ -0,0 +1,369 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Integer ALU instructions +// + + +// Instruction class constructor template when Rc is set. +def template IntRcConstructor {{ + inline %(class_name)s::%(class_name)s(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) + { + %(constructor)s; + rcSet = true; + } +}}; + + +// Instruction class constructor template when OE is set. +def template IntOeConstructor {{ + inline %(class_name)s::%(class_name)s(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) + { + %(constructor)s; + oeSet = true; + } +}}; + + +// Instruction class constructor template when both Rc and OE are set. +def template IntRcOeConstructor {{ + inline %(class_name)s::%(class_name)s(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) + { + %(constructor)s; + rcSet = true; + oeSet = true; + } +}}; + + +let {{ + +readXERCode = 'Xer xer = XER;' + +setXERCode = 'XER = xer;' + +computeCR0Code = ''' + Cr cr = CR; + cr.cr0 = makeCRField((int32_t)%(result)s, (int32_t)0, xer.so); + CR = cr; +''' + +computeCACode = ''' + if (findCarry(32, %(result)s, %(inputa)s, %(inputb)s)) { + xer.ca = 1; + } else { + xer.ca = 0; + } +''' + +computeOVCode = ''' + if (findOverflow(32, %(result)s, %(inputa)s, %(inputb)s)) { + xer.ov = 1; + xer.so = 1; + } else { + xer.ov = 0; + } +''' + +computeDivOVCode = ''' + if (divSetOV) { + xer.ov = 1; + xer.so = 1; + } else { + if (findOverflow(32, %(result)s, %(inputa)s, %(inputb)s)) { + xer.ov = 1; + xer.so = 1; + } else { + xer.ov = 0; + } + } +''' + +}}; + + +// A basic integer instruction. +def format IntOp(code, inst_flags = []) {{ + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntOp', code, inst_flags, BasicDecode, + BasicConstructor) +}}; + + +// Integer instructions with immediate (signed or unsigned). +def format IntImmOp(code, inst_flags = []) {{ + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntImmOp', code, inst_flags, BasicDecode, + BasicConstructor) +}}; + + +// Integer instructions with immediate that perform arithmetic. +// These instructions all write to Rt and use an altered form of the +// value in source register Ra, hence the use of src to hold the actual +// value. The control flags include the use of code to compute the +// carry bit or the CR0 code. +def format IntImmArithOp(code, ctrl_flags = [], inst_flags = []) {{ + + # Set up the dictionary and deal with control flags + dict = {'result':'Rt', 'inputa':'src', 'inputb':'imm'} + if ctrl_flags: + code += readXERCode + for val in ctrl_flags: + if val == 'computeCA': + code += computeCACode % dict + setXERCode + elif val == 'computeCR0': + code += computeCR0Code % dict + + # Generate the class + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntImmOp', code, inst_flags, BasicDecode, + BasicConstructor) +}}; + + +// Integer instructions with immediate that perform arithmetic but use +// the value 0 when Ra == 0. We generate two versions of each instruction +// corresponding to these two different scenarios. The correct version is +// determined at decode (see the CheckRaDecode template). +def format IntImmArithCheckRaOp(code, code_ra0, inst_flags = []) {{ + + # First the version where Ra is non-zero + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntImmOp', code, inst_flags, + CheckRaDecode, BasicConstructor) + + # Now another version where Ra == 0 + (header_output_ra0, decoder_output_ra0, _, exec_output_ra0) = \ + GenAluOp(name, Name + 'RaZero', 'IntImmOp', code_ra0, inst_flags, + CheckRaDecode, BasicConstructor) + + # Finally, add to the other outputs + header_output += header_output_ra0 + decoder_output += decoder_output_ra0 + exec_output += exec_output_ra0 +}}; + + +// Integer instructions with immediate that perform logic operations. +// All instructions write to Ra and use Rs as a source register. Some +// also compute the CR0 code too. +def format IntImmLogicOp(code, computeCR0 = 0, inst_flags = []) {{ + + # Set up the dictionary and deal with computing CR0 + dict = {'result':'Ra'} + if computeCR0: + code += readXERCode + computeCR0Code % dict + + # Generate the class + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntImmOp', code, inst_flags, BasicDecode, + BasicConstructor) +}}; + + +// Integer instructions that perform logic operations. The result is +// always written into Ra. All instructions have 2 versions depending on +// whether the Rc bit is set to compute the CR0 code. This is determined +// at decode as before. +def format IntLogicOp(code, inst_flags = []) {{ + dict = {'result':'Ra'} + + # Code when Rc is set + code_rc1 = code + readXERCode + computeCR0Code % dict + + # Generate the first class + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntOp', code, inst_flags, + CheckRcDecode, BasicConstructor) + + # Generate the second class + (header_output_rc1, decoder_output_rc1, _, exec_output_rc1) = \ + GenAluOp(name, Name + 'RcSet', 'IntOp', code_rc1, inst_flags, + CheckRcDecode, IntRcConstructor) + + # Finally, add to the other outputs + header_output += header_output_rc1 + decoder_output += decoder_output_rc1 + exec_output += exec_output_rc1 +}}; + + +// Integer instructions with a shift amount. As above, except inheriting +// from the IntShiftOp class. +def format IntShiftOp(code, inst_flags = []) {{ + dict = {'result':'Ra'} + + # Code when Rc is set + code_rc1 = code + readXERCode + computeCR0Code % dict + + # Generate the first class + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntShiftOp', code, inst_flags, + CheckRcDecode, BasicConstructor) + + # Generate the second class + (header_output_rc1, decoder_output_rc1, _, exec_output_rc1) = \ + GenAluOp(name, Name + 'RcSet', 'IntShiftOp', code_rc1, inst_flags, + CheckRcDecode, IntRcConstructor) + + # Finally, add to the other outputs + header_output += header_output_rc1 + decoder_output += decoder_output_rc1 + exec_output += exec_output_rc1 +}}; + + +// Instructions in this format are all reduced to the form Rt = src1 + src2, +// therefore we just give src1 and src2 definitions. In working out the +// template we first put in the definitions of the variables and then +// the code for the addition. We also deal with computing the carry flag +// if required. +// +// We generate 4 versions of each instruction. This correspond to the +// different combinations of having the OE bit set or unset (which controls +// whether the overflow flag is computed) and the Rc bit set or unset too +// (which controls whether the CR0 code is computed). +def format IntSumOp(src1, src2, ca = {{ 0 }}, computeCA = 0, + inst_flags = []) {{ + + # The result is always in Rt, but the source values vary + dict = {'result':'Rt', 'inputa':'src1', 'inputb':'src2'} + + # Add code to set up variables and do the sum + code = 'uint32_t src1 = ' + src1 + ';\n' + code += 'uint32_t src2 = ' + src2 + ';\n' + code += 'uint32_t ca = ' + ca + ';\n' + code += 'Rt = src1 + src2 + ca;\n' + + # Add code for calculating the carry, if needed + if computeCA: + code += computeCACode % dict + setXERCode + + # Setup the 4 code versions and add code to access XER if necessary + code_rc1 = readXERCode + code + code_oe1 = readXERCode + code + computeOVCode % dict + setXERCode + code_rc1_oe1 = readXERCode + code + computeOVCode % dict + setXERCode + if (computeCA or ca == 'xer.ca'): + code = readXERCode + code + code_rc1 += computeCR0Code % dict + code_rc1_oe1 += computeCR0Code % dict + + # Generate the classes + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntOp', code, inst_flags, + CheckRcOeDecode, BasicConstructor) + (header_output_rc1, decoder_output_rc1, _, exec_output_rc1) = \ + GenAluOp(name, Name + 'RcSet', 'IntOp', code_rc1, inst_flags, + CheckRcOeDecode, IntRcConstructor) + (header_output_oe1, decoder_output_oe1, _, exec_output_oe1) = \ + GenAluOp(name, Name + 'OeSet', 'IntOp', code_oe1, inst_flags, + CheckRcOeDecode, IntOeConstructor) + (header_output_rc1_oe1, decoder_output_rc1_oe1, _, exec_output_rc1_oe1) = \ + GenAluOp(name, Name + 'RcSetOeSet', 'IntOp', code_rc1_oe1, + inst_flags, CheckRcOeDecode, IntRcOeConstructor) + + # Finally, add to the other outputs + header_output += \ + header_output_rc1 + header_output_oe1 + header_output_rc1_oe1 + decoder_output += \ + decoder_output_rc1 + decoder_output_oe1 + decoder_output_rc1_oe1 + exec_output += \ + exec_output_rc1 + exec_output_oe1 + exec_output_rc1_oe1 + +}}; + + +// Instructions that use source registers Ra and Rb, with the result +// placed into Rt. Basically multiply and divide instructions. The +// carry bit is never set, but overflow can be calculated. Division +// explicitly sets the overflow bit in certain situations and this is +// dealt with using the 'divSetOV' boolean in decoder.isa. We generate +// two versions of each instruction to deal with the Rc bit. +def format IntArithOp(code, computeOV = 0, inst_flags = []) {{ + + # The result is always in Rt, but the source values vary + dict = {'result':'Rt', 'inputa':'src1', 'inputb':'src2'} + + # Deal with setting the overflow flag + if computeOV: + code = 'bool divSetOV = false;\n' + code + code += computeDivOVCode % dict + setXERCode + + # Setup the 2 code versions and add code to access XER if necessary + code_rc1 = readXERCode + code + computeCR0Code % dict + if computeOV: + code = readXERCode + code + + # Generate the classes + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntOp', code, inst_flags, + CheckRcDecode, BasicConstructor) + + # Generate the second class + (header_output_rc1, decoder_output_rc1, _, exec_output_rc1) = \ + GenAluOp(name, Name + 'RcSet', 'IntOp', code_rc1, inst_flags, + CheckRcDecode, IntRcConstructor) + + # Finally, add to the other outputs + header_output += header_output_rc1 + decoder_output += decoder_output_rc1 + exec_output += exec_output_rc1 +}}; + + +// A special format for rotate instructions which use certain fields +// from the instruction's binary encoding. We need two versions for each +// instruction to deal with the Rc bit. +def format IntRotateOp(code, inst_flags = []) {{ + + # The result is always in Ra + dict = {'result':'Ra'} + + # Setup the code for when Rc is set + code_rc1 = readXERCode + code + computeCR0Code % dict + + # Generate the first class + (header_output, decoder_output, decode_block, exec_output) = \ + GenAluOp(name, Name, 'IntRotateOp', code, inst_flags, + CheckRcDecode, BasicConstructor) + + # Generate the second class + (header_output_rc1, decoder_output_rc1, _, exec_output_rc1) = \ + GenAluOp(name, Name + 'RcSet', 'IntRotateOp', code_rc1, inst_flags, + CheckRcDecode, IntRcConstructor) + + # Finally, add to the other outputs + header_output += header_output_rc1 + decoder_output += decoder_output_rc1 + exec_output += exec_output_rc1 +}}; diff --git a/src/arch/power/isa/formats/mem.isa b/src/arch/power/isa/formats/mem.isa new file mode 100644 index 000000000..1be49c2f7 --- /dev/null +++ b/src/arch/power/isa/formats/mem.isa @@ -0,0 +1,351 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Memory-format instructions +// + +def template LoadStoreDeclare {{ + /** + * Static instruction class for "%(mnemonic)s". + */ + class %(class_name)s : public %(base_class)s + { + public: + + /// Constructor. + %(class_name)s(ExtMachInst machInst); + + %(BasicExecDeclare)s + + %(InitiateAccDeclare)s + + %(CompleteAccDeclare)s + }; +}}; + + +def template InitiateAccDeclare {{ + Fault initiateAcc(%(CPU_exec_context)s *, Trace::InstRecord *) const; +}}; + + +def template CompleteAccDeclare {{ + Fault completeAcc(PacketPtr, %(CPU_exec_context)s *, Trace::InstRecord *) const; +}}; + + +def template LoadStoreConstructor {{ + inline %(class_name)s::%(class_name)s(ExtMachInst machInst) + : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) + { + %(constructor)s; + } +}}; + + +def template LoadExecute {{ + Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Addr EA; + Fault fault = NoFault; + + %(op_decl)s; + %(op_rd)s; + %(ea_code)s; + + if (fault == NoFault) { + fault = xc->read(EA, (uint%(mem_acc_size)d_t&)Mem, memAccessFlags); + %(memacc_code)s; + } + + if (fault == NoFault) { + %(op_wb)s; + } + + return fault; + } +}}; + + +def template LoadInitiateAcc {{ + Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Addr EA; + Fault fault = NoFault; + + %(op_src_decl)s; + %(op_rd)s; + %(ea_code)s; + + if (fault == NoFault) { + fault = xc->read(EA, (uint%(mem_acc_size)d_t &)Mem, memAccessFlags); + xc->setEA(EA); + } + + return fault; + } +}}; + + +def template LoadCompleteAcc {{ + Fault %(class_name)s::completeAcc(PacketPtr pkt, + %(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Addr EA; + Fault fault = NoFault; + uint%(mem_acc_size)d_t val; + + %(op_decl)s; + %(op_rd)s; + + EA = xc->getEA(); + + val = pkt->get<uint%(mem_acc_size)d_t>(); + *((uint%(mem_acc_size)d_t*)&Mem) = val; + + if (fault == NoFault) { + %(memacc_code)s; + } + + if (fault == NoFault) { + %(op_wb)s; + } + + return fault; + } +}}; + + +def template StoreExecute {{ + Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Addr EA; + Fault fault = NoFault; + + %(op_decl)s; + %(op_rd)s; + %(ea_code)s; + + if (fault == NoFault) { + %(memacc_code)s; + } + + if (fault == NoFault) { + fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, + memAccessFlags, NULL); + if (traceData) { traceData->setData(Mem); } + } + + if (fault == NoFault) { + %(op_wb)s; + } + + return fault; + } +}}; + + +def template StoreInitiateAcc {{ + Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Addr EA; + Fault fault = NoFault; + + %(op_decl)s; + %(op_rd)s; + %(ea_code)s; + + if (fault == NoFault) { + %(memacc_code)s; + } + + if (fault == NoFault) { + fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, + memAccessFlags, NULL); + if (traceData) { traceData->setData(Mem); } + } + + // Need to write back any potential address register update + if (fault == NoFault) { + %(op_wb)s; + } + + return fault; + } +}}; + + +def template StoreCompleteAcc {{ + Fault %(class_name)s::completeAcc(PacketPtr pkt, + %(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + Fault fault = NoFault; + + %(op_dest_decl)s; + + if (fault == NoFault) { + %(op_wb)s; + } + + return fault; + } +}}; + + +// The generic memory operation generator. This is called when two versions +// of an instruction are needed - when Ra == 0 and otherwise. This is so +// that instructions can use the value 0 when Ra == 0 but avoid having a +// dependence on Ra. +let {{ + +def GenMemOp(name, Name, memacc_code, ea_code, ea_code_ra0, base, + load_or_store, mem_flags = [], inst_flags = []): + + # First the version where Ra is non-zero + (header_output, decoder_output, decode_block, exec_output) = \ + LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, + base_class = base, + decode_template = CheckRaDecode, + exec_template_base = load_or_store) + + # Now another version where Ra == 0 + (header_output_ra0, decoder_output_ra0, _, exec_output_ra0) = \ + LoadStoreBase(name, Name + 'RaZero', ea_code_ra0, memacc_code, + mem_flags, inst_flags, + base_class = base, + exec_template_base = load_or_store) + + # Finally, add to the other outputs + header_output += header_output_ra0 + decoder_output += decoder_output_ra0 + exec_output += exec_output_ra0 + return (header_output, decoder_output, decode_block, exec_output) + +}}; + + +def format LoadIndexOp(memacc_code, ea_code = {{ EA = Ra + Rb; }}, + ea_code_ra0 = {{ EA = Rb; }}, + mem_flags = [], inst_flags = []) {{ + (header_output, decoder_output, decode_block, exec_output) = \ + GenMemOp(name, Name, memacc_code, ea_code, ea_code_ra0, + 'MemOp', 'Load', mem_flags, inst_flags) +}}; + + +def format StoreIndexOp(memacc_code, ea_code = {{ EA = Ra + Rb; }}, + ea_code_ra0 = {{ EA = Rb; }}, + mem_flags = [], inst_flags = []) {{ + (header_output, decoder_output, decode_block, exec_output) = \ + GenMemOp(name, Name, memacc_code, ea_code, ea_code_ra0, + 'MemOp', 'Store', mem_flags, inst_flags) +}}; + + +def format LoadIndexUpdateOp(memacc_code, ea_code = {{ EA = Ra + Rb; }}, + mem_flags = [], inst_flags = []) {{ + + # Add in the update code + memacc_code += 'Ra = EA;' + + # Generate the class + (header_output, decoder_output, decode_block, exec_output) = \ + LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, + base_class = 'MemOp', + exec_template_base = 'Load') +}}; + + +def format StoreIndexUpdateOp(memacc_code, ea_code = {{ EA = Ra + Rb; }}, + mem_flags = [], inst_flags = []) {{ + + # Add in the update code + memacc_code += 'Ra = EA;' + + # Generate the class + (header_output, decoder_output, decode_block, exec_output) = \ + LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, + base_class = 'MemOp', + exec_template_base = 'Store') +}}; + + +def format LoadDispOp(memacc_code, ea_code = {{ EA = Ra + disp; }}, + ea_code_ra0 = {{ EA = disp; }}, + mem_flags = [], inst_flags = []) {{ + (header_output, decoder_output, decode_block, exec_output) = \ + GenMemOp(name, Name, memacc_code, ea_code, ea_code_ra0, + 'MemDispOp', 'Load', mem_flags, inst_flags) +}}; + + +def format StoreDispOp(memacc_code, ea_code = {{ EA = Ra + disp; }}, + ea_code_ra0 = {{ EA = disp; }}, + mem_flags = [], inst_flags = []) {{ + (header_output, decoder_output, decode_block, exec_output) = \ + GenMemOp(name, Name, memacc_code, ea_code, ea_code_ra0, + 'MemDispOp', 'Store', mem_flags, inst_flags) +}}; + + +def format LoadDispUpdateOp(memacc_code, ea_code = {{ EA = Ra + disp; }}, + mem_flags = [], inst_flags = []) {{ + + # Add in the update code + memacc_code += 'Ra = EA;' + + # Generate the class + (header_output, decoder_output, decode_block, exec_output) = \ + LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, + base_class = 'MemDispOp', + exec_template_base = 'Load') +}}; + + +def format StoreDispUpdateOp(memacc_code, ea_code = {{ EA = Ra + disp; }}, + mem_flags = [], inst_flags = []) {{ + + # Add in the update code + memacc_code += 'Ra = EA;' + + # Generate the class + (header_output, decoder_output, decode_block, exec_output) = \ + LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, + base_class = 'MemDispOp', + exec_template_base = 'Store') +}}; diff --git a/src/arch/power/isa/formats/misc.isa b/src/arch/power/isa/formats/misc.isa new file mode 100644 index 000000000..93536aa18 --- /dev/null +++ b/src/arch/power/isa/formats/misc.isa @@ -0,0 +1,61 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Misc instructions +// + +def template MiscOpExecute {{ + Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const + { + Fault fault = NoFault; + %(op_decl)s; + %(op_rd)s; + + %(code)s; + if (fault == NoFault) + { + %(op_wb)s; + } + + return fault; + } +}}; + +def format MiscOp(code, opt_flags = []) {{ + iop = InstObjParams(name, Name, 'IntOp', + {"code": code}, + opt_flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = BasicDecode.subst(iop) + exec_output = MiscOpExecute.subst(iop) +}}; diff --git a/src/arch/power/isa/formats/unimp.isa b/src/arch/power/isa/formats/unimp.isa new file mode 100644 index 000000000..60a7c469d --- /dev/null +++ b/src/arch/power/isa/formats/unimp.isa @@ -0,0 +1,146 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2007-2008 The Florida State University +// Copyright (c) 2009 The University of Edinburgh +// 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: Stephen Hines +// Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Unimplemented instructions +// + +output header {{ + /** + * Static instruction class for unimplemented instructions that + * cause simulator termination. Note that these are recognized + * (legal) instructions that the simulator does not support; the + * 'Unknown' class is used for unrecognized/illegal instructions. + * This is a leaf class. + */ + class FailUnimplemented : public PowerStaticInst + { + public: + /// Constructor + FailUnimplemented(const char *_mnemonic, MachInst _machInst) + : PowerStaticInst(_mnemonic, _machInst, No_OpClass) + { + // don't call execute() (which panics) if we're on a + // speculative path + flags[IsNonSpeculative] = true; + } + + %(BasicExecDeclare)s + + std::string + generateDisassembly(Addr pc, const SymbolTable *symtab) const; + }; + + /** + * Base class for unimplemented instructions that cause a warning + * to be printed (but do not terminate simulation). This + * implementation is a little screwy in that it will print a + * warning for each instance of a particular unimplemented machine + * instruction, not just for each unimplemented opcode. Should + * probably make the 'warned' flag a static member of the derived + * class. + */ + class WarnUnimplemented : public PowerStaticInst + { + private: + /// Have we warned on this instruction yet? + mutable bool warned; + + public: + /// Constructor + WarnUnimplemented(const char *_mnemonic, MachInst _machInst) + : PowerStaticInst(_mnemonic, _machInst, No_OpClass), warned(false) + { + // don't call execute() (which panics) if we're on a + // speculative path + flags[IsNonSpeculative] = true; + } + + %(BasicExecDeclare)s + + std::string + generateDisassembly(Addr pc, const SymbolTable *symtab) const; + }; +}}; + +output decoder {{ + std::string + FailUnimplemented::generateDisassembly(Addr pc, + const SymbolTable *symtab) const + { + return csprintf("%-10s (unimplemented)", mnemonic); + } + + std::string + WarnUnimplemented::generateDisassembly(Addr pc, + const SymbolTable *symtab) const + { + return csprintf("%-10s (unimplemented)", mnemonic); + } +}}; + +output exec {{ + Fault + FailUnimplemented::execute(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + panic("attempt to execute unimplemented instruction '%s' " + "(inst 0x%08x, opcode 0x%x, binary:%s)", mnemonic, machInst, OPCODE, + inst2string(machInst)); + return new UnimplementedOpcodeFault; + } + + Fault + WarnUnimplemented::execute(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + if (!warned) { + warn("\tinstruction '%s' unimplemented\n", mnemonic); + warned = true; + } + + return NoFault; + } +}}; + + +def format FailUnimpl() {{ + iop = InstObjParams(name, 'FailUnimplemented') + decode_block = BasicDecodeWithMnemonic.subst(iop) +}}; + +def format WarnUnimpl() {{ + iop = InstObjParams(name, 'WarnUnimplemented') + decode_block = BasicDecodeWithMnemonic.subst(iop) +}}; + diff --git a/src/arch/power/isa/formats/unknown.isa b/src/arch/power/isa/formats/unknown.isa new file mode 100644 index 000000000..06e6ece26 --- /dev/null +++ b/src/arch/power/isa/formats/unknown.isa @@ -0,0 +1,87 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2007-2008 The Florida State University +// Copyright (c) 2009 The University of Edinburgh +// 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: Stephen Hines +// Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Unknown instructions +// + +output header {{ + /** + * Static instruction class for unknown (illegal) instructions. + * These cause simulator termination if they are executed in a + * non-speculative mode. This is a leaf class. + */ + class Unknown : public PowerStaticInst + { + public: + /// Constructor + Unknown(ExtMachInst _machInst) + : PowerStaticInst("unknown", _machInst, No_OpClass) + { + // don't call execute() (which panics) if we're on a + // speculative path + flags[IsNonSpeculative] = true; + } + + %(BasicExecDeclare)s + + std::string + generateDisassembly(Addr pc, const SymbolTable *symtab) const; + }; +}}; + +output decoder {{ + std::string + Unknown::generateDisassembly(Addr pc, const SymbolTable *symtab) const + { + return csprintf("%-10s (inst 0x%x, opcode 0x%x, binary:%s)", + "unknown", machInst, OPCODE, inst2string(machInst)); + } +}}; + +output exec {{ + Fault + Unknown::execute(%(CPU_exec_context)s *xc, + Trace::InstRecord *traceData) const + { + panic("attempt to execute unknown instruction at %#x" + "(inst 0x%08x, opcode 0x%x, binary: %s)", + xc->readPC(), machInst, OPCODE, inst2string(machInst)); + return new UnimplementedOpcodeFault; + } +}}; + +def format Unknown() {{ + decode_block = 'return new Unknown(machInst);\n' +}}; + diff --git a/src/arch/power/isa/formats/util.isa b/src/arch/power/isa/formats/util.isa new file mode 100644 index 000000000..ab1e530b2 --- /dev/null +++ b/src/arch/power/isa/formats/util.isa @@ -0,0 +1,174 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2003-2005 The Regents of The University of Michigan +// Copyright (c) 2009 The University of Edinburgh +// 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: Steve Reinhardt +// Korey Sewell +// Timothy M. Jones + +// Some instructions ignore the contents of Ra if Ra == 0, +// so check for this. +def template CheckRaDecode {{ + { + if (RA == 0) { + return new %(class_name)sRaZero(machInst); + } else { + return new %(class_name)s(machInst); + } + } +}}; + + +// Some instructions have extra behaviour if Rc is set. +def template CheckRcDecode {{ + { + if (RC31 == 0) { + return new %(class_name)s(machInst); + } else { + return new %(class_name)sRcSet(machInst); + } + } +}}; + + +// Some instructions have extra behaviour if Rc and OE are set. +def template CheckRcOeDecode {{ + { + if (RC31 == 0) { + if (OE == 0) { + return new %(class_name)s(machInst); + } else { + return new %(class_name)sOeSet(machInst); + } + } else { + if (OE == 0) { + return new %(class_name)sRcSet(machInst); + } else { + return new %(class_name)sRcSetOeSet(machInst); + } + } + } +}}; + +// Branch instructions always have two versions, one which sets the link +// register (LR). +def template CheckLkDecode {{ + { + if (LK == 0) { + return new %(class_name)s(machInst); + } else { + return new %(class_name)sUpdateLr(machInst); + } + } +}}; + + +let {{ + +def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, + base_class = 'MemOp', + decode_template = BasicDecode, exec_template_base = ''): + # Make sure flags are in lists (convert to lists if not). + mem_flags = makeList(mem_flags) + inst_flags = makeList(inst_flags) + + # add hook to get effective addresses into execution trace output. + ea_code += '\nif (traceData) { traceData->setAddr(EA); }\n' + + # Generate InstObjParams for the memory access. + iop = InstObjParams(name, Name, base_class, + {'ea_code': ea_code, + 'memacc_code': memacc_code}, + inst_flags) + + if mem_flags: + s = '\n\tmemAccessFlags = ' + string.join(mem_flags, '|') + ';' + iop.constructor += s + + fullExecTemplate = eval(exec_template_base + 'Execute') + initiateAccTemplate = eval(exec_template_base + 'InitiateAcc') + completeAccTemplate = eval(exec_template_base + 'CompleteAcc') + + # (header_output, decoder_output, decode_block, exec_output) + return (LoadStoreDeclare.subst(iop), + LoadStoreConstructor.subst(iop), + decode_template.subst(iop), + fullExecTemplate.subst(iop) + + initiateAccTemplate.subst(iop) + + completeAccTemplate.subst(iop)) + + +# The generic ALU instruction generator. Integer and fp formats calls this +# to generate the different output sections. +def GenAluOp(name, Name, base_class, code, inst_flags, decode_template, + constructor_template): + iop = InstObjParams(name, Name, base_class, + {"code": code}, + inst_flags) + header_output = BasicDeclare.subst(iop) + exec_output = BasicExecute.subst(iop) + + # We use constructors dependent on the Rc and OE bits being set + decoder_output = constructor_template.subst(iop) + + # The decode block defines which version to use + decode_block = decode_template.subst(iop) + return (header_output, decoder_output, decode_block, exec_output) + +}}; + + +output header {{ + std::string + inst2string(MachInst machInst); +}}; + +output decoder {{ + + std::string + inst2string(MachInst machInst) + { + std::string str = ""; + uint32_t mask = 0x80000000; + + for(int i=0; i < 32; i++) { + if ((machInst & mask) == 0) { + str += "0"; + } else { + str += "1"; + } + + mask = mask >> 1; + } + + return str; + } + +}}; + + diff --git a/src/arch/power/isa/includes.isa b/src/arch/power/isa/includes.isa new file mode 100644 index 000000000..47e8c1411 --- /dev/null +++ b/src/arch/power/isa/includes.isa @@ -0,0 +1,92 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Output include file directives. +// + +output header {{ +#include <sstream> +#include <iostream> +#include <iomanip> + +#include "arch/power/insts/branch.hh" +#include "arch/power/insts/mem.hh" +#include "arch/power/insts/integer.hh" +#include "arch/power/insts/floating.hh" +#include "arch/power/insts/condition.hh" +#include "arch/power/insts/misc.hh" +#include "arch/power/insts/static_inst.hh" +#include "arch/power/isa_traits.hh" +#include "cpu/static_inst.hh" +#include "mem/packet.hh" + +using namespace PowerISA; +}}; + +output decoder {{ +#include <cmath> +#if defined(linux) +#include <fenv.h> +#endif + +#include "arch/power/faults.hh" +#include "arch/power/isa_traits.hh" +#include "arch/power/utility.hh" +#include "base/cprintf.hh" +#include "base/loader/symtab.hh" +#include "cpu/thread_context.hh" + +using namespace PowerISA; +using std::isnan; +}}; + +output exec {{ +#include "arch/power/faults.hh" +#include "arch/power/isa_traits.hh" +#include "arch/power/utility.hh" + +#include <cmath> +#if defined(linux) +#include <fenv.h> +#endif + +#include "base/condcodes.hh" +#include "cpu/base.hh" +#include "cpu/exetrace.hh" +#include "mem/packet.hh" +#include "mem/packet_access.hh" +#include "sim/sim_exit.hh" + +using namespace PowerISA; +using std::isnan; +}}; + diff --git a/src/arch/power/isa/main.isa b/src/arch/power/isa/main.isa new file mode 100644 index 000000000..cce7e39ee --- /dev/null +++ b/src/arch/power/isa/main.isa @@ -0,0 +1,57 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +//////////////////////////////////////////////////////////////////// +// +// Power ISA description file. +// +//////////////////////////////////////////////////////////////////// + +//Include the C++ include directives +##include "includes.isa" + +//////////////////////////////////////////////////////////////////// +// +// Namespace statement. Everything below this line will be in the +// PowerISAInst namespace. +// +namespace PowerISA; + +//Include the bitfield definitions +##include "bitfields.isa" + +//Include the operand_types and operand definitions +##include "operands.isa" + +//Include the definitions for the instruction formats +##include "formats/formats.isa" + +//Include the decoder definition +##include "decoder.isa" diff --git a/src/arch/power/isa/operands.isa b/src/arch/power/isa/operands.isa new file mode 100644 index 000000000..fc6c32685 --- /dev/null +++ b/src/arch/power/isa/operands.isa @@ -0,0 +1,81 @@ +// -*- mode:c++ -*- + +// Copyright (c) 2009 The University of Edinburgh +// 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: Timothy M. Jones + +def operand_types {{ + 'sb' : ('signed int', 8), + 'ub' : ('unsigned int', 8), + 'sh' : ('signed int', 16), + 'uh' : ('unsigned int', 16), + 'sw' : ('signed int', 32), + 'uw' : ('unsigned int', 32), + 'sq' : ('signed int', 64), + 'uq' : ('unsigned int', 64), + 'sf' : ('float', 32), + 'df' : ('float', 64) +}}; + +def operands {{ + # General Purpose Integer Reg Operands + 'Ra': ('IntReg', 'uw', 'RA', 'IsInteger', 1), + 'Rb': ('IntReg', 'uw', 'RB', 'IsInteger', 2), + 'Rs': ('IntReg', 'uw', 'RS', 'IsInteger', 3), + 'Rt': ('IntReg', 'uw', 'RT', 'IsInteger', 4), + + # General Purpose Floating Point Reg Operands + 'Fa': ('FloatReg', 'df', 'FRA', 'IsFloating', 1), + 'Fb': ('FloatReg', 'df', 'FRB', 'IsFloating', 2), + 'Fc': ('FloatReg', 'df', 'FRC', 'IsFloating', 3), + 'Fs': ('FloatReg', 'df', 'FRS', 'IsFloating', 4), + 'Ft': ('FloatReg', 'df', 'FRT', 'IsFloating', 5), + + # Memory Operand + 'Mem': ('Mem', 'uw', None, ('IsMemRef', 'IsLoad', 'IsStore'), 8), + + # Program counter and next + 'PC': ('PC', 'uw', None, (None, None, 'IsControl'), 9), + 'NPC': ('NPC', 'uw', None, (None, None, 'IsControl'), 9), + + # Control registers + 'CR': ('IntReg', 'uw', 'INTREG_CR', 'IsInteger', 9), + 'LR': ('IntReg', 'uw', 'INTREG_LR', 'IsInteger', 9), + 'CTR': ('IntReg', 'uw', 'INTREG_CTR', 'IsInteger', 9), + 'XER': ('IntReg', 'uw', 'INTREG_XER', 'IsInteger', 9), + + # Setting as IntReg so things are stored as an integer, not double + 'FPSCR': ('IntReg', 'uw', 'INTREG_FPSCR', 'IsFloating', 9), + + # Registers for linked loads and stores + 'Rsv': ('IntReg', 'uw', 'INTREG_RSV', 'IsInteger', 9), + 'RsvLen': ('IntReg', 'uw', 'INTREG_RSV_LEN', 'IsInteger', 9), + 'RsvAddr': ('IntReg', 'uw', 'INTREG_RSV_ADDR', 'IsInteger', 9), + + # Hack for non-full-system syscall emulation + 'R0': ('IntReg', 'uw', '0', None, 1), +}}; diff --git a/src/arch/power/isa_traits.hh b/src/arch/power/isa_traits.hh new file mode 100644 index 000000000..886c2cb0b --- /dev/null +++ b/src/arch/power/isa_traits.hh @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2003-2005 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + * Gabe Black + * Stephen Hines + */ + +#ifndef __ARCH_POWER_ISA_TRAITS_HH__ +#define __ARCH_POWER_ISA_TRAITS_HH__ + +#include "arch/power/types.hh" +#include "base/types.hh" + +namespace BigEndianGuest {}; + +class StaticInstPtr; + +namespace PowerISA +{ + +using namespace BigEndianGuest; + +StaticInstPtr decodeInst(ExtMachInst); + +// POWER DOES NOT have a delay slot +#define ISA_HAS_DELAY_SLOT 0 + +const Addr PageShift = 12; +const Addr PageBytes = ULL(1) << PageShift; +const Addr Page_Mask = ~(PageBytes - 1); +const Addr PageOffset = PageBytes - 1; + +const Addr PteShift = 3; +const Addr NPtePageShift = PageShift - PteShift; +const Addr NPtePage = ULL(1) << NPtePageShift; +const Addr PteMask = NPtePage - 1; + +const int LogVMPageSize = 12; // 4K bytes +const int VMPageSize = (1 << LogVMPageSize); + +const int MachineBytes = 4; + +// This is ori 0, 0, 0 +const ExtMachInst NoopMachInst = 0x60000000; + +} // PowerISA namespace + +#endif // __ARCH_POWER_ISA_TRAITS_HH__ diff --git a/src/arch/power/linux/linux.cc b/src/arch/power/linux/linux.cc new file mode 100644 index 000000000..113f3e48e --- /dev/null +++ b/src/arch/power/linux/linux.cc @@ -0,0 +1,79 @@ +/* + * Copyright (c) 2003-2005 The Regents of The University of Michigan + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#include "arch/power/linux/linux.hh" + +#include <fcntl.h> + +// open(2) flags translation table +OpenFlagTransTable PowerLinux::openFlagTable[] = { +#ifdef _MSC_VER + { PowerLinux::TGT_O_RDONLY, _O_RDONLY }, + { PowerLinux::TGT_O_WRONLY, _O_WRONLY }, + { PowerLinux::TGT_O_RDWR, _O_RDWR }, + { PowerLinux::TGT_O_APPEND, _O_APPEND }, + { PowerLinux::TGT_O_CREAT, _O_CREAT }, + { PowerLinux::TGT_O_TRUNC, _O_TRUNC }, + { PowerLinux::TGT_O_EXCL, _O_EXCL }, +#ifdef _O_NONBLOCK + { PowerLinux::TGT_O_NONBLOCK, _O_NONBLOCK }, +#endif +#ifdef _O_NOCTTY + { PowerLinux::TGT_O_NOCTTY, _O_NOCTTY }, +#endif +#ifdef _O_SYNC + { PowerLinux::TGT_O_SYNC, _O_SYNC }, +#endif +#ifdef _O_LARGEFILE + { PowerLinux::TGT_O_LARGEFILE, _O_LARGEFILE }, +#endif +#else /* !_MSC_VER */ + { PowerLinux::TGT_O_RDONLY, O_RDONLY }, + { PowerLinux::TGT_O_WRONLY, O_WRONLY }, + { PowerLinux::TGT_O_RDWR, O_RDWR }, + { PowerLinux::TGT_O_APPEND, O_APPEND }, + { PowerLinux::TGT_O_CREAT, O_CREAT }, + { PowerLinux::TGT_O_TRUNC, O_TRUNC }, + { PowerLinux::TGT_O_EXCL, O_EXCL }, + { PowerLinux::TGT_O_NONBLOCK, O_NONBLOCK }, + { PowerLinux::TGT_O_NOCTTY, O_NOCTTY }, +#ifdef O_SYNC + { PowerLinux::TGT_O_SYNC, O_SYNC }, +#endif +#ifdef O_LARGEFILE + { PowerLinux::TGT_O_LARGEFILE, O_LARGEFILE }, +#endif +#endif /* _MSC_VER */ +}; + +const int PowerLinux::NUM_OPEN_FLAGS = + (sizeof(PowerLinux::openFlagTable)/sizeof(PowerLinux::openFlagTable[0])); + diff --git a/src/arch/power/linux/linux.hh b/src/arch/power/linux/linux.hh new file mode 100644 index 000000000..c681c8baf --- /dev/null +++ b/src/arch/power/linux/linux.hh @@ -0,0 +1,148 @@ +/* + * Copyright (c) 2003-2005 The Regents of The University of Michigan + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_LINUX_LINUX_HH__ +#define __ARCH_POWER_LINUX_LINUX_HH__ + +#include "kern/linux/linux.hh" + +/* + * This works for a 2.6.15 kernel. + */ + +class PowerLinux : public Linux +{ + public: + + typedef int32_t time_t; + + typedef struct { + uint64_t st_dev; + uint32_t __pad1; + uint32_t st_ino; + uint32_t st_mode; + uint32_t st_nlink; + uint32_t st_uid; + uint32_t st_gid; + uint64_t st_rdev; + uint32_t __pad2; + uint32_t st_size; + uint32_t st_blksize; + uint32_t st_blocks; + uint32_t st_atimeX; + uint32_t st_atime_nsec; + uint32_t st_mtimeX; + uint32_t st_mtime_nsec; + uint32_t st_ctimeX; + uint32_t st_ctime_nsec; + uint32_t __unused4; + uint32_t __unused5; + } tgt_stat; + + typedef struct { + uint64_t st_dev; + uint64_t st_ino; + uint32_t st_mode; + uint32_t st_nlink; + uint32_t st_uid; + uint32_t st_gid; + uint64_t st_rdev; + uint64_t __pad2; + uint64_t st_size; + uint32_t st_blksize; + uint32_t __blksize_pad; + uint64_t st_blocks; + uint32_t st_atimeX; + uint32_t st_atime_nsec; + uint32_t st_mtimeX; + uint32_t st_mtime_nsec; + uint32_t st_ctimeX; + uint32_t st_ctime_nsec; + uint32_t __unused4; + uint32_t __unused5; + } tgt_stat64; + + /// For times(). + struct tms { + int32_t tms_utime; //!< user time + int32_t tms_stime; //!< system time + int32_t tms_cutime; //!< user time of children + int32_t tms_cstime; //!< system time of children + }; + + /// This table maps the target open() flags to the corresponding + /// host open() flags. + static OpenFlagTransTable openFlagTable[]; + + /// Number of entries in openFlagTable[]. + static const int NUM_OPEN_FLAGS; + + //@{ + /// open(2) flag values. + static const int TGT_O_RDONLY = 00000000; //!< O_RDONLY + static const int TGT_O_WRONLY = 00000001; //!< O_WRONLY + static const int TGT_O_RDWR = 00000002; //!< O_RDWR + static const int TGT_O_CREAT = 00000100; //!< O_CREAT + static const int TGT_O_EXCL = 00000200; //!< O_EXCL + static const int TGT_O_NOCTTY = 00000400; //!< O_NOCTTY + static const int TGT_O_TRUNC = 00001000; //!< O_TRUNC + static const int TGT_O_APPEND = 00002000; //!< O_APPEND + static const int TGT_O_NONBLOCK = 00004000; //!< O_NONBLOCK + static const int TGT_O_SYNC = 00010000; //!< O_SYNC + static const int TGT_FASYNC = 00020000; //!< FASYNC + static const int TGT_O_DIRECTORY = 00040000; //!< O_DIRECTORY + static const int TGT_O_NOFOLLOW = 00100000; //!< O_NOFOLLOW + static const int TGT_O_LARGEFILE = 00200000; //!< O_LARGEFILE + static const int TGT_O_DIRECT = 00400000; //!< O_DIRECT + static const int TGT_O_NOATIME = 01000000; //!< O_NOATIME + //@} + + /// For mmap(). + static const unsigned TGT_MAP_ANONYMOUS = 0x800; + + //@{ + /// ioctl() command codes. + /// These are for the 2.6.15 kernel. Some have changed for + /// later versions. + static const unsigned TIOCGETP_ = 0x40067408; + static const unsigned TIOCSETP_ = 0x80067409; + static const unsigned TIOCSETN_ = 0x8006740a; + static const unsigned TIOCSETC_ = 0x80067411; + static const unsigned TIOCGETC_ = 0x40067412; + static const unsigned FIONREAD_ = 0x4004667f; + static const unsigned TIOCISATTY_ = 0x2000745e; + static const unsigned TIOCGETS_ = 0x402c7413; + static const unsigned TIOCGETA_ = 0x40147417; + static const unsigned TCSETAW_ = 0x80147419; + //@} +}; + +#endif // __ARCH_POWER_LINUX_LINUX_HH__ diff --git a/src/arch/power/linux/process.cc b/src/arch/power/linux/process.cc new file mode 100644 index 000000000..504d0e334 --- /dev/null +++ b/src/arch/power/linux/process.cc @@ -0,0 +1,456 @@ +/* + * Copyright (c) 2003-2005 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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 + * Stephen Hines + * Timothy M. Jones + */ + +#include "arch/power/linux/linux.hh" +#include "arch/power/linux/process.hh" +#include "arch/power/isa_traits.hh" + +#include "base/trace.hh" +#include "cpu/thread_context.hh" +#include "kern/linux/linux.hh" + +#include "sim/process.hh" +#include "sim/syscall_emul.hh" +#include "sim/system.hh" + +using namespace std; +using namespace PowerISA; + +/// Target uname() handler. +static SyscallReturn +unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, + ThreadContext *tc) +{ + int index = 0; + TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index)); + + strcpy(name->sysname, "Linux"); + strcpy(name->nodename, "m5.eecs.umich.edu"); + strcpy(name->release, "2.6.16.19"); + strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003"); + strcpy(name->machine, "power"); + + name.copyOut(tc->getMemPort()); + return 0; +} + +SyscallDesc PowerLinuxProcess::syscallDescs[] = { + /* 0 */ SyscallDesc("syscall", unimplementedFunc), + /* 1 */ SyscallDesc("exit", exitFunc), + /* 2 */ SyscallDesc("fork", unimplementedFunc), + /* 3 */ SyscallDesc("read", readFunc), + /* 4 */ SyscallDesc("write", writeFunc), + /* 5 */ SyscallDesc("open", openFunc<PowerLinux>), + /* 6 */ SyscallDesc("close", closeFunc), + /* 7 */ SyscallDesc("waitpid", unimplementedFunc), //??? + /* 8 */ SyscallDesc("creat", unimplementedFunc), + /* 9 */ SyscallDesc("link", unimplementedFunc), + /* 10 */ SyscallDesc("unlink", unlinkFunc), + /* 11 */ SyscallDesc("execve", unimplementedFunc), + /* 12 */ SyscallDesc("chdir", unimplementedFunc), + /* 13 */ SyscallDesc("time", timeFunc<PowerLinux>), + /* 14 */ SyscallDesc("mknod", unimplementedFunc), + /* 15 */ SyscallDesc("chmod", chmodFunc<PowerLinux>), + /* 16 */ SyscallDesc("lchown", chownFunc), + /* 17 */ SyscallDesc("break", brkFunc), //??? + /* 18 */ SyscallDesc("unused#18", unimplementedFunc), //??? + /* 19 */ SyscallDesc("lseek", lseekFunc), + /* 20 */ SyscallDesc("getpid", getpidFunc), + /* 21 */ SyscallDesc("mount", unimplementedFunc), + /* 22 */ SyscallDesc("umount", unimplementedFunc), + /* 23 */ SyscallDesc("setuid", setuidFunc), + /* 24 */ SyscallDesc("getuid", getuidFunc), + /* 25 */ SyscallDesc("stime", unimplementedFunc), + /* 26 */ SyscallDesc("ptrace", unimplementedFunc), + /* 27 */ SyscallDesc("alarm", unimplementedFunc), + /* 28 */ SyscallDesc("unused#28", unimplementedFunc), + /* 29 */ SyscallDesc("pause", unimplementedFunc), + /* 30 */ SyscallDesc("utime", unimplementedFunc), + /* 31 */ SyscallDesc("stty", unimplementedFunc), + /* 32 */ SyscallDesc("gtty", unimplementedFunc), + /* 33 */ SyscallDesc("access", unimplementedFunc), + /* 34 */ SyscallDesc("nice", unimplementedFunc), + /* 35 */ SyscallDesc("ftime", unimplementedFunc), + /* 36 */ SyscallDesc("sync", unimplementedFunc), + /* 37 */ SyscallDesc("kill", ignoreFunc), + /* 38 */ SyscallDesc("rename", renameFunc), + /* 39 */ SyscallDesc("mkdir", unimplementedFunc), + /* 40 */ SyscallDesc("rmdir", unimplementedFunc), + /* 41 */ SyscallDesc("dup", dupFunc), + /* 42 */ SyscallDesc("pipe", unimplementedFunc), + /* 43 */ SyscallDesc("times", timesFunc<PowerLinux>), + /* 44 */ SyscallDesc("prof", unimplementedFunc), + /* 45 */ SyscallDesc("brk", brkFunc), + /* 46 */ SyscallDesc("setgid", unimplementedFunc), + /* 47 */ SyscallDesc("getgid", getgidFunc), + /* 48 */ SyscallDesc("signal", ignoreFunc), + /* 49 */ SyscallDesc("geteuid", geteuidFunc), + /* 50 */ SyscallDesc("getegid", getegidFunc), + /* 51 */ SyscallDesc("acct", unimplementedFunc), + /* 52 */ SyscallDesc("umount2", unimplementedFunc), + /* 53 */ SyscallDesc("lock", unimplementedFunc), + /* 54 */ SyscallDesc("ioctl", ioctlFunc<PowerLinux>), + /* 55 */ SyscallDesc("fcntl", fcntlFunc), + /* 56 */ SyscallDesc("mpx", unimplementedFunc), + /* 57 */ SyscallDesc("setpgid", unimplementedFunc), + /* 58 */ SyscallDesc("ulimit", unimplementedFunc), + /* 59 */ SyscallDesc("unused#59", unimplementedFunc), + /* 60 */ SyscallDesc("umask", umaskFunc), + /* 61 */ SyscallDesc("chroot", unimplementedFunc), + /* 62 */ SyscallDesc("ustat", unimplementedFunc), + /* 63 */ SyscallDesc("dup2", unimplementedFunc), + /* 64 */ SyscallDesc("getppid", getpagesizeFunc), + /* 65 */ SyscallDesc("getpgrp", unimplementedFunc), + /* 66 */ SyscallDesc("setsid", unimplementedFunc), + /* 67 */ SyscallDesc("sigaction",unimplementedFunc), + /* 68 */ SyscallDesc("sgetmask", unimplementedFunc), + /* 69 */ SyscallDesc("ssetmask", unimplementedFunc), + /* 70 */ SyscallDesc("setreuid", unimplementedFunc), + /* 71 */ SyscallDesc("setregid", unimplementedFunc), + /* 72 */ SyscallDesc("sigsuspend", unimplementedFunc), + /* 73 */ SyscallDesc("sigpending", unimplementedFunc), + /* 74 */ SyscallDesc("sethostname", ignoreFunc), + /* 75 */ SyscallDesc("setrlimit", ignoreFunc), + /* 76 */ SyscallDesc("getrlimit", unimplementedFunc), + /* 77 */ SyscallDesc("getrusage", ignoreFunc), + /* 78 */ SyscallDesc("gettimeofday", unimplementedFunc), + /* 79 */ SyscallDesc("settimeofday", unimplementedFunc), + /* 80 */ SyscallDesc("getgroups", unimplementedFunc), + /* 81 */ SyscallDesc("setgroups", unimplementedFunc), + /* 82 */ SyscallDesc("reserved#82", unimplementedFunc), + /* 83 */ SyscallDesc("symlink", unimplementedFunc), + /* 84 */ SyscallDesc("unused#84", unimplementedFunc), + /* 85 */ SyscallDesc("readlink", unimplementedFunc), + /* 86 */ SyscallDesc("uselib", unimplementedFunc), + /* 87 */ SyscallDesc("swapon", gethostnameFunc), + /* 88 */ SyscallDesc("reboot", unimplementedFunc), + /* 89 */ SyscallDesc("readdir", unimplementedFunc), + /* 90 */ SyscallDesc("mmap", mmapFunc<PowerLinux>), + /* 91 */ SyscallDesc("munmap",munmapFunc), + /* 92 */ SyscallDesc("truncate", truncateFunc), + /* 93 */ SyscallDesc("ftruncate", ftruncateFunc), + /* 94 */ SyscallDesc("fchmod", unimplementedFunc), + /* 95 */ SyscallDesc("fchown", unimplementedFunc), + /* 96 */ SyscallDesc("getpriority", unimplementedFunc), + /* 97 */ SyscallDesc("setpriority", unimplementedFunc), + /* 98 */ SyscallDesc("profil", unimplementedFunc), + /* 99 */ SyscallDesc("statfs", unimplementedFunc), + /* 100 */ SyscallDesc("fstatfs", unimplementedFunc), + /* 101 */ SyscallDesc("ioperm", unimplementedFunc), + /* 102 */ SyscallDesc("socketcall", unimplementedFunc), + /* 103 */ SyscallDesc("syslog", unimplementedFunc), + /* 104 */ SyscallDesc("setitimer", unimplementedFunc), + /* 105 */ SyscallDesc("getitimer", unimplementedFunc), + /* 106 */ SyscallDesc("stat", statFunc<PowerLinux>), + /* 107 */ SyscallDesc("lstat", unimplementedFunc), + /* 108 */ SyscallDesc("fstat", fstatFunc<PowerLinux>), + /* 109 */ SyscallDesc("unused#109", unimplementedFunc), + /* 110 */ SyscallDesc("iopl", unimplementedFunc), + /* 111 */ SyscallDesc("vhangup", unimplementedFunc), + /* 112 */ SyscallDesc("idle", ignoreFunc), + /* 113 */ SyscallDesc("vm86", unimplementedFunc), + /* 114 */ SyscallDesc("wait4", unimplementedFunc), + /* 115 */ SyscallDesc("swapoff", unimplementedFunc), + /* 116 */ SyscallDesc("sysinfo", unimplementedFunc), + /* 117 */ SyscallDesc("ipc", unimplementedFunc), + /* 118 */ SyscallDesc("fsync", unimplementedFunc), + /* 119 */ SyscallDesc("sigreturn", unimplementedFunc), + /* 120 */ SyscallDesc("clone", unimplementedFunc), + /* 121 */ SyscallDesc("setdomainname", unimplementedFunc), + /* 122 */ SyscallDesc("uname", unameFunc), + /* 123 */ SyscallDesc("modify_ldt", unimplementedFunc), + /* 124 */ SyscallDesc("adjtimex", unimplementedFunc), + /* 125 */ SyscallDesc("mprotect", ignoreFunc), + /* 126 */ SyscallDesc("sigprocmask", unimplementedFunc), + /* 127 */ SyscallDesc("create_module", unimplementedFunc), + /* 128 */ SyscallDesc("init_module", unimplementedFunc), + /* 129 */ SyscallDesc("delete_module", unimplementedFunc), + /* 130 */ SyscallDesc("get_kernel_syms", unimplementedFunc), + /* 131 */ SyscallDesc("quotactl", unimplementedFunc), + /* 132 */ SyscallDesc("getpgid", unimplementedFunc), + /* 133 */ SyscallDesc("fchdir", unimplementedFunc), + /* 134 */ SyscallDesc("bdflush", unimplementedFunc), + /* 135 */ SyscallDesc("sysfs", unimplementedFunc), + /* 136 */ SyscallDesc("personality", unimplementedFunc), + /* 137 */ SyscallDesc("afs_syscall", unimplementedFunc), + /* 138 */ SyscallDesc("setfsuid", unimplementedFunc), + /* 139 */ SyscallDesc("setfsgid", unimplementedFunc), + /* 140 */ SyscallDesc("llseek", _llseekFunc), + /* 141 */ SyscallDesc("getdents", unimplementedFunc), + /* 142 */ SyscallDesc("newselect", unimplementedFunc), + /* 143 */ SyscallDesc("flock", unimplementedFunc), + /* 144 */ SyscallDesc("msync", unimplementedFunc), + /* 145 */ SyscallDesc("readv", unimplementedFunc), + /* 146 */ SyscallDesc("writev", writevFunc<PowerLinux>), + /* 147 */ SyscallDesc("getsid", unimplementedFunc), + /* 148 */ SyscallDesc("fdatasync", unimplementedFunc), + /* 149 */ SyscallDesc("sysctl", unimplementedFunc), + /* 150 */ SyscallDesc("mlock", unimplementedFunc), + /* 151 */ SyscallDesc("munlock", unimplementedFunc), + /* 152 */ SyscallDesc("mlockall", unimplementedFunc), + /* 153 */ SyscallDesc("munlockall", unimplementedFunc), + /* 154 */ SyscallDesc("sched_setparam", unimplementedFunc), + /* 155 */ SyscallDesc("sched_getparam", unimplementedFunc), + /* 156 */ SyscallDesc("sched_setscheduler", unimplementedFunc), + /* 157 */ SyscallDesc("sched_getscheduler", unimplementedFunc), + /* 158 */ SyscallDesc("sched_yield", unimplementedFunc), + /* 159 */ SyscallDesc("sched_get_priority_max", unimplementedFunc), + /* 160 */ SyscallDesc("sched_get_priority_min", unimplementedFunc), + /* 161 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc), + /* 162 */ SyscallDesc("nanosleep", unimplementedFunc), + /* 163 */ SyscallDesc("mremap", unimplementedFunc), + /* 164 */ SyscallDesc("setresuid", unimplementedFunc), + /* 165 */ SyscallDesc("getresuid", unimplementedFunc), + /* 166 */ SyscallDesc("vm862", unimplementedFunc), + /* 167 */ SyscallDesc("query_module", unimplementedFunc), + /* 168 */ SyscallDesc("poll", unimplementedFunc), + /* 169 */ SyscallDesc("nfsservctl", unimplementedFunc), + /* 170 */ SyscallDesc("setresgid", unimplementedFunc), + /* 171 */ SyscallDesc("getresgid", unimplementedFunc), + /* 172 */ SyscallDesc("prctl", unimplementedFunc), + /* 173 */ SyscallDesc("rt_sigaction", ignoreFunc), + /* 174 */ SyscallDesc("rt_sigprocmask", unimplementedFunc), + /* 175 */ SyscallDesc("unknown#175", unimplementedFunc), + /* 176 */ SyscallDesc("rt_sigpending", unimplementedFunc), + /* 177 */ SyscallDesc("rt_sigtimedwait", unimplementedFunc), + /* 178 */ SyscallDesc("rt_sigqueueinfo", ignoreFunc), + /* 179 */ SyscallDesc("rt_sigsuspend", unimplementedFunc), + /* 180 */ SyscallDesc("pread64", unimplementedFunc), + /* 181 */ SyscallDesc("pwrite64", unimplementedFunc), + /* 182 */ SyscallDesc("chown", unimplementedFunc), + /* 183 */ SyscallDesc("getcwd", unimplementedFunc), + /* 184 */ SyscallDesc("capget", unimplementedFunc), + /* 185 */ SyscallDesc("capset", unimplementedFunc), + /* 186 */ SyscallDesc("sigaltstack", unimplementedFunc), + /* 187 */ SyscallDesc("sendfile", unimplementedFunc), + /* 188 */ SyscallDesc("getpmsg", unimplementedFunc), + /* 189 */ SyscallDesc("putpmsg", unimplementedFunc), + /* 190 */ SyscallDesc("ugetrlimit", ignoreFunc), + /* 191 */ SyscallDesc("getrlimit", unimplementedFunc), + /* 192 */ SyscallDesc("mmap2", mmapFunc<PowerLinux>), + /* 193 */ SyscallDesc("truncate64", unimplementedFunc), + /* 194 */ SyscallDesc("ftruncate64", ftruncate64Func), + /* 195 */ SyscallDesc("stat64", stat64Func<PowerLinux>), + /* 196 */ SyscallDesc("lstat64", lstat64Func<PowerLinux>), + /* 197 */ SyscallDesc("fstat64", fstat64Func<PowerLinux>), + /* 198 */ SyscallDesc("lchown", unimplementedFunc), + /* 199 */ SyscallDesc("getuid", getuidFunc), + /* 200 */ SyscallDesc("getgid", getgidFunc), + /* 201 */ SyscallDesc("geteuid", geteuidFunc), + /* 202 */ SyscallDesc("getegid", getegidFunc), + /* 203 */ SyscallDesc("setreuid", unimplementedFunc), + /* 204 */ SyscallDesc("fcntl64", fcntl64Func), + /* 205 */ SyscallDesc("getgroups", unimplementedFunc), + /* 206 */ SyscallDesc("setgroups", unimplementedFunc), + /* 207 */ SyscallDesc("fchown", unimplementedFunc), + /* 208 */ SyscallDesc("setresuid", unimplementedFunc), + /* 209 */ SyscallDesc("getresuid", unimplementedFunc), + /* 210 */ SyscallDesc("setresgid", unimplementedFunc), + /* 211 */ SyscallDesc("getresgid", unimplementedFunc), + /* 212 */ SyscallDesc("chown", unimplementedFunc), + /* 213 */ SyscallDesc("setuid", unimplementedFunc), + /* 214 */ SyscallDesc("setgid", unimplementedFunc), + /* 215 */ SyscallDesc("setfsuid", unimplementedFunc), + /* 216 */ SyscallDesc("setfsgid", unimplementedFunc), + /* 217 */ SyscallDesc("getdents64", unimplementedFunc), + /* 218 */ SyscallDesc("pivot_root", unimplementedFunc), + /* 219 */ SyscallDesc("mincore", unimplementedFunc), + /* 220 */ SyscallDesc("madvise", unimplementedFunc), + /* 221 */ SyscallDesc("unknown#221", unimplementedFunc), + /* 222 */ SyscallDesc("tux", unimplementedFunc), + /* 223 */ SyscallDesc("unknown#223", unimplementedFunc), + /* 224 */ SyscallDesc("gettid", unimplementedFunc), + /* 225 */ SyscallDesc("readahead", unimplementedFunc), + /* 226 */ SyscallDesc("setxattr", unimplementedFunc), + /* 227 */ SyscallDesc("lsetxattr", unimplementedFunc), + /* 228 */ SyscallDesc("fsetxattr", unimplementedFunc), + /* 229 */ SyscallDesc("getxattr", unimplementedFunc), + /* 230 */ SyscallDesc("lgetxattr", unimplementedFunc), + /* 231 */ SyscallDesc("fgetxattr", unimplementedFunc), + /* 232 */ SyscallDesc("listxattr", unimplementedFunc), + /* 233 */ SyscallDesc("llistxattr", unimplementedFunc), + /* 234 */ SyscallDesc("exit_group", exitGroupFunc), + /* 235 */ SyscallDesc("removexattr", unimplementedFunc), + /* 236 */ SyscallDesc("lremovexattr", unimplementedFunc), + /* 237 */ SyscallDesc("fremovexattr", unimplementedFunc), + /* 238 */ SyscallDesc("tkill", unimplementedFunc), + /* 239 */ SyscallDesc("sendfile64", unimplementedFunc), + /* 240 */ SyscallDesc("futex", unimplementedFunc), + /* 241 */ SyscallDesc("sched_setaffinity", unimplementedFunc), + /* 242 */ SyscallDesc("sched_getaffinity", unimplementedFunc), + /* 243 */ SyscallDesc("io_setup", unimplementedFunc), + /* 244 */ SyscallDesc("io_destory", unimplementedFunc), + /* 245 */ SyscallDesc("io_getevents", unimplementedFunc), + /* 246 */ SyscallDesc("io_submit", unimplementedFunc), + /* 247 */ SyscallDesc("io_cancel", unimplementedFunc), + /* 248 */ SyscallDesc("unknown#248", unimplementedFunc), + /* 249 */ SyscallDesc("lookup_dcookie", unimplementedFunc), + /* 250 */ SyscallDesc("epoll_create", unimplementedFunc), + /* 251 */ SyscallDesc("epoll_ctl", unimplementedFunc), + /* 252 */ SyscallDesc("epoll_wait", unimplementedFunc), + /* 253 */ SyscallDesc("remap_file_pages", unimplementedFunc), + /* 254 */ SyscallDesc("set_thread_area", unimplementedFunc), + /* 255 */ SyscallDesc("get_thread_area", unimplementedFunc), + /* 256 */ SyscallDesc("set_tid_address", unimplementedFunc), + /* 257 */ SyscallDesc("timer_create", unimplementedFunc), + /* 258 */ SyscallDesc("timer_settime", unimplementedFunc), + /* 259 */ SyscallDesc("timer_gettime", unimplementedFunc), + /* 260 */ SyscallDesc("timer_getoverrun", unimplementedFunc), + /* 261 */ SyscallDesc("timer_delete", unimplementedFunc), + /* 262 */ SyscallDesc("clock_settime", unimplementedFunc), + /* 263 */ SyscallDesc("clock_gettime", unimplementedFunc), + /* 264 */ SyscallDesc("clock_getres", unimplementedFunc), + /* 265 */ SyscallDesc("clock_nanosleep", unimplementedFunc), + /* 266 */ SyscallDesc("statfs64", unimplementedFunc), + /* 267 */ SyscallDesc("fstatfs64", unimplementedFunc), + /* 268 */ SyscallDesc("tgkill", unimplementedFunc), + /* 269 */ SyscallDesc("utimes", unimplementedFunc), + /* 270 */ SyscallDesc("arm_fadvise64_64", unimplementedFunc), + /* 271 */ SyscallDesc("pciconfig_iobase", unimplementedFunc), + /* 272 */ SyscallDesc("pciconfig_read", unimplementedFunc), + /* 273 */ SyscallDesc("pciconfig_write", unimplementedFunc), + /* 274 */ SyscallDesc("mq_open", unimplementedFunc), + /* 275 */ SyscallDesc("mq_unlink", unimplementedFunc), + /* 276 */ SyscallDesc("mq_timedsend", unimplementedFunc), + /* 277 */ SyscallDesc("mq_timedreceive", unimplementedFunc), + /* 278 */ SyscallDesc("mq_notify", unimplementedFunc), + /* 279 */ SyscallDesc("mq_getsetattr", unimplementedFunc), + /* 280 */ SyscallDesc("waitid", unimplementedFunc), + /* 281 */ SyscallDesc("socket", unimplementedFunc), + /* 282 */ SyscallDesc("bind", unimplementedFunc), + /* 283 */ SyscallDesc("connect", unimplementedFunc), + /* 284 */ SyscallDesc("listen", unimplementedFunc), + /* 285 */ SyscallDesc("accept", unimplementedFunc), + /* 286 */ SyscallDesc("getsockname", unimplementedFunc), + /* 287 */ SyscallDesc("getpeername", unimplementedFunc), + /* 288 */ SyscallDesc("socketpair", unimplementedFunc), + /* 289 */ SyscallDesc("send", unimplementedFunc), + /* 290 */ SyscallDesc("sendto", unimplementedFunc), + /* 291 */ SyscallDesc("recv", unimplementedFunc), + /* 292 */ SyscallDesc("recvfrom", unimplementedFunc), + /* 293 */ SyscallDesc("shutdown", unimplementedFunc), + /* 294 */ SyscallDesc("setsockopt", unimplementedFunc), + /* 295 */ SyscallDesc("getsockopt", unimplementedFunc), + /* 296 */ SyscallDesc("sendmsg", unimplementedFunc), + /* 297 */ SyscallDesc("rcvmsg", unimplementedFunc), + /* 298 */ SyscallDesc("semop", unimplementedFunc), + /* 299 */ SyscallDesc("semget", unimplementedFunc), + /* 300 */ SyscallDesc("semctl", unimplementedFunc), + /* 301 */ SyscallDesc("msgsend", unimplementedFunc), + /* 302 */ SyscallDesc("msgrcv", unimplementedFunc), + /* 303 */ SyscallDesc("msgget", unimplementedFunc), + /* 304 */ SyscallDesc("msgctl", unimplementedFunc), + /* 305 */ SyscallDesc("shmat", unimplementedFunc), + /* 306 */ SyscallDesc("shmdt", unimplementedFunc), + /* 307 */ SyscallDesc("shmget", unimplementedFunc), + /* 308 */ SyscallDesc("shmctl", unimplementedFunc), + /* 309 */ SyscallDesc("add_key", unimplementedFunc), + /* 310 */ SyscallDesc("request_key", unimplementedFunc), + /* 311 */ SyscallDesc("keyctl", unimplementedFunc), + /* 312 */ SyscallDesc("semtimedop", unimplementedFunc), + /* 313 */ SyscallDesc("vserver", unimplementedFunc), + /* 314 */ SyscallDesc("ioprio_set", unimplementedFunc), + /* 315 */ SyscallDesc("ioprio_get", unimplementedFunc), + /* 316 */ SyscallDesc("inotify_init", unimplementedFunc), + /* 317 */ SyscallDesc("inotify_add_watch", unimplementedFunc), + /* 318 */ SyscallDesc("inotify_rm_watch", unimplementedFunc), + /* 319 */ SyscallDesc("mbind", unimplementedFunc), + /* 320 */ SyscallDesc("get_mempolicy", unimplementedFunc), + /* 321 */ SyscallDesc("set_mempolicy", unimplementedFunc), + /* 322 */ SyscallDesc("openat", unimplementedFunc), + /* 323 */ SyscallDesc("mkdirat", unimplementedFunc), + /* 324 */ SyscallDesc("mknodat", unimplementedFunc), + /* 325 */ SyscallDesc("fchownat", unimplementedFunc), + /* 326 */ SyscallDesc("futimesat", unimplementedFunc), + /* 327 */ SyscallDesc("fstatat64", unimplementedFunc), + /* 328 */ SyscallDesc("unlinkat", unimplementedFunc), + /* 329 */ SyscallDesc("renameat", unimplementedFunc), + /* 330 */ SyscallDesc("linkat", unimplementedFunc), + /* 331 */ SyscallDesc("symlinkat", unimplementedFunc), + /* 332 */ SyscallDesc("readlinkat", unimplementedFunc), + /* 333 */ SyscallDesc("fchmodat", unimplementedFunc), + /* 334 */ SyscallDesc("faccessat", unimplementedFunc), + /* 335 */ SyscallDesc("pselect6", unimplementedFunc), + /* 336 */ SyscallDesc("ppoll", unimplementedFunc), + /* 337 */ SyscallDesc("unshare", unimplementedFunc), + /* 338 */ SyscallDesc("set_robust_list", unimplementedFunc), + /* 339 */ SyscallDesc("get_robust_list", unimplementedFunc), + /* 340 */ SyscallDesc("splice", unimplementedFunc), + /* 341 */ SyscallDesc("arm_sync_file_range", unimplementedFunc), + /* 342 */ SyscallDesc("tee", unimplementedFunc), + /* 343 */ SyscallDesc("vmsplice", unimplementedFunc), + /* 344 */ SyscallDesc("move_pages", unimplementedFunc), + /* 345 */ SyscallDesc("getcpu", unimplementedFunc), + /* 346 */ SyscallDesc("epoll_pwait", unimplementedFunc), +}; + +PowerLinuxProcess::PowerLinuxProcess(LiveProcessParams * params, + ObjectFile *objFile) + : PowerLiveProcess(params, objFile), + Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc)) +{ +} + +SyscallDesc* +PowerLinuxProcess::getDesc(int callnum) +{ + if (callnum < 0 || callnum > Num_Syscall_Descs) + return NULL; + + return &syscallDescs[callnum]; +} + +void +PowerLinuxProcess::startup() +{ + PowerLiveProcess::startup(); +} + +PowerISA::IntReg +PowerLinuxProcess::getSyscallArg(ThreadContext *tc, int &i) +{ + // Linux apparently allows more parameter than the ABI says it should. + // This limit may need to be increased even further. + assert(i < 6); + return tc->readIntReg(ArgumentReg0 + i++); +} + +void +PowerLinuxProcess::setSyscallArg(ThreadContext *tc, int i, PowerISA::IntReg val) +{ + // Linux apparently allows more parameter than the ABI says it should. + // This limit may need to be increased even further. + assert(i < 6); + tc->setIntReg(ArgumentReg0 + i, val); +} diff --git a/src/arch/power/linux/process.hh b/src/arch/power/linux/process.hh new file mode 100644 index 000000000..db6759a77 --- /dev/null +++ b/src/arch/power/linux/process.hh @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Stephen Hines + * Timothy M. Jones + */ + +#ifndef __POWER_LINUX_PROCESS_HH__ +#define __POWER_LINUX_PROCESS_HH__ + +#include "arch/power/process.hh" + + +/// A process with emulated PPC/Linux syscalls. +class PowerLinuxProcess : public PowerLiveProcess +{ + public: + PowerLinuxProcess(LiveProcessParams * params, ObjectFile *objFile); + + virtual SyscallDesc* getDesc(int callnum); + + void startup(); + + PowerISA::IntReg getSyscallArg(ThreadContext *tc, int &i); + void setSyscallArg(ThreadContext *tc, int i, PowerISA::IntReg val); + + /// Array of syscall descriptors, indexed by call number. + static SyscallDesc syscallDescs[]; + + const int Num_Syscall_Descs; +}; + +#endif // __POWER_LINUX_PROCESS_HH__ diff --git a/src/arch/power/locked_mem.hh b/src/arch/power/locked_mem.hh new file mode 100644 index 000000000..56ab1d4a0 --- /dev/null +++ b/src/arch/power/locked_mem.hh @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2006 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Steve Reinhardt + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_POWER_LOCKED_MEM_HH__ +#define __ARCH_POWER_LOCKED_MEM_HH__ + +/** + * @file + * + * ISA-specific helper functions for locked memory accesses. + */ + +#include "mem/request.hh" + +namespace PowerISA +{ + +template <class XC> +inline void +handleLockedRead(XC *xc, Request *req) +{ +} + +template <class XC> +inline bool +handleLockedWrite(XC *xc, Request *req) +{ + return true; +} + +} // PowerISA namespace + +#endif // __ARCH_POWER_LOCKED_MEM_HH__ diff --git a/src/arch/power/microcode_rom.hh b/src/arch/power/microcode_rom.hh new file mode 100644 index 000000000..e35db5112 --- /dev/null +++ b/src/arch/power/microcode_rom.hh @@ -0,0 +1,45 @@ +/* + * Copyright (c) 2008 The Regents of The University of Michigan + * Copyright (c) 2009 The University of Edinburgh + * 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 + */ + +#ifndef __ARCH_POWER_MICROCODE_ROM_HH__ +#define __ARCH_POWER_MICROCODE_ROM_HH__ + +#include "sim/microcode_rom.hh" + +namespace PowerISA +{ + +using ::MicrocodeRom; + +} // PowerISA namespace + +#endif // __ARCH_POWER_MICROCODE_ROM_HH__ diff --git a/src/arch/power/miscregs.hh b/src/arch/power/miscregs.hh new file mode 100644 index 000000000..cd9815b2a --- /dev/null +++ b/src/arch/power/miscregs.hh @@ -0,0 +1,95 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_MISCREGS_HH__ +#define __ARCH_POWER_MISCREGS_HH__ + +#include "base/bitunion.hh" + +namespace PowerISA +{ + +enum MiscRegIndex { + NUM_MISCREGS = 0 +}; + +const char * const miscRegName[NUM_MISCREGS] = { +}; + +BitUnion32(Cr) + Bitfield<31,28> cr0; + Bitfield<27,24> cr1; +EndBitUnion(Cr) + +BitUnion32(Xer) + Bitfield<31> so; + Bitfield<30> ov; + Bitfield<29> ca; +EndBitUnion(Xer) + +BitUnion32(Fpscr) + Bitfield<31> fx; + Bitfield<30> fex; + Bitfield<29> vx; + Bitfield<28> ox; + Bitfield<27> ux; + Bitfield<26> zx; + Bitfield<25> xx; + Bitfield<24> vxsnan; + Bitfield<23> vxisi; + Bitfield<22> vxidi; + Bitfield<21> vxzdz; + Bitfield<20> vximz; + Bitfield<19> vxvc; + Bitfield<18> fr; + Bitfield<17> fi; + SubBitUnion(fprf, 16, 12) + Bitfield<16> c; + SubBitUnion(fpcc, 15, 12) + Bitfield<15> fl; + Bitfield<14> fg; + Bitfield<13> fe; + Bitfield<12> fu; + EndSubBitUnion(fpcc) + EndSubBitUnion(fprf) + Bitfield<10> vxsqrt; + Bitfield<9> vxcvi; + Bitfield<8> ve; + Bitfield<7> oe; + Bitfield<6> ue; + Bitfield<5> ze; + Bitfield<4> xe; + Bitfield<3> ni; + Bitfield<2,1> rn; +EndBitUnion(Fpscr) + +}; // PowerISA namespace + +#endif // __ARCH_POWER_MISCREGS_HH__ diff --git a/src/arch/power/mmaped_ipr.hh b/src/arch/power/mmaped_ipr.hh new file mode 100644 index 000000000..bd1ea10b3 --- /dev/null +++ b/src/arch/power/mmaped_ipr.hh @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2006 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Ali Saidi + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_POWER_MMAPED_IPR_HH__ +#define __ARCH_POWER_MMAPED_IPR_HH__ + +/** + * @file + * + * ISA-specific helper functions for memory mapped IPR accesses. + */ + +#include "base/misc.hh" +#include "mem/packet.hh" + +class ThreadContext; + +namespace PowerISA +{ + +inline Tick +handleIprRead(ThreadContext *xc, Packet *pkt) +{ + panic("No implementation for handleIprRead in POWER\n"); +} + +inline Tick +handleIprWrite(ThreadContext *xc, Packet *pkt) +{ + panic("No implementation for handleIprWrite in POWER\n"); +} + +} // PowerISA namespace + +#endif // __ARCH_POWER_MMAPED_IPR_HH__ diff --git a/src/arch/power/pagetable.cc b/src/arch/power/pagetable.cc new file mode 100644 index 000000000..862404578 --- /dev/null +++ b/src/arch/power/pagetable.cc @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2002-2005 The Regents of The University of Michigan + * Copyright (c) 2007 MIPS Technologies, Inc. + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Nathan Binkert + * Steve Reinhardt + * Jaidev Patwardhan + * Stephen Hines + * Timothy M. Jones + */ + +#include "arch/power/pagetable.hh" +#include "sim/serialize.hh" + +namespace PowerISA +{ + +void +PTE::serialize(std::ostream &os) +{ + SERIALIZE_SCALAR(Mask); + SERIALIZE_SCALAR(VPN); + SERIALIZE_SCALAR(asid); + SERIALIZE_SCALAR(G); + SERIALIZE_SCALAR(PFN0); + SERIALIZE_SCALAR(D0); + SERIALIZE_SCALAR(V0); + SERIALIZE_SCALAR(C0); + SERIALIZE_SCALAR(PFN1); + SERIALIZE_SCALAR(D1); + SERIALIZE_SCALAR(V1); + SERIALIZE_SCALAR(C1); + SERIALIZE_SCALAR(AddrShiftAmount); + SERIALIZE_SCALAR(OffsetMask); +} + +void +PTE::unserialize(Checkpoint *cp, const std::string §ion) +{ + UNSERIALIZE_SCALAR(Mask); + UNSERIALIZE_SCALAR(VPN); + UNSERIALIZE_SCALAR(asid); + UNSERIALIZE_SCALAR(G); + UNSERIALIZE_SCALAR(PFN0); + UNSERIALIZE_SCALAR(D0); + UNSERIALIZE_SCALAR(V0); + UNSERIALIZE_SCALAR(C0); + UNSERIALIZE_SCALAR(PFN1); + UNSERIALIZE_SCALAR(D1); + UNSERIALIZE_SCALAR(V1); + UNSERIALIZE_SCALAR(C1); + UNSERIALIZE_SCALAR(AddrShiftAmount); + UNSERIALIZE_SCALAR(OffsetMask); +} + +} // PowerISA namespace diff --git a/src/arch/power/pagetable.hh b/src/arch/power/pagetable.hh new file mode 100644 index 000000000..bd2b9d397 --- /dev/null +++ b/src/arch/power/pagetable.hh @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2002-2005 The Regents of The University of Michigan + * Copyright (c) 2007 MIPS Technologies, Inc. + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Nathan Binkert + * Steve Reinhardt + * Jaidev Patwardhan + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_POWER_PAGETABLE_H__ +#define __ARCH_POWER_PAGETABLE_H__ + +#include "arch/power/isa_traits.hh" +#include "arch/power/utility.hh" +#include "arch/power/vtophys.hh" +#include "config/full_system.hh" + +namespace PowerISA { + +struct VAddr +{ + static const int ImplBits = 43; + static const Addr ImplMask = (ULL(1) << ImplBits) - 1; + static const Addr UnImplMask = ~ImplMask; + + Addr addr; + + VAddr(Addr a) + : addr(a) + {} + + operator Addr() const + { + return addr; + } + + const VAddr + &operator=(Addr a) + { + addr = a; + return *this; + } + + Addr + vpn() const + { + return (addr & ImplMask) >> PageShift; + } + + Addr + page() const + { + return addr & Page_Mask; + } + + Addr + offset() const + { + return addr & PageOffset; + } + + Addr + level3() const + { + return PowerISA::PteAddr(addr >> PageShift); + } + + Addr + level2() const + { + return PowerISA::PteAddr(addr >> (NPtePageShift + PageShift)); + } + + Addr + level1() const + { + return PowerISA::PteAddr(addr >> (2 * NPtePageShift + PageShift)); + } +}; + +// ITB/DTB page table entry +struct PTE +{ + // What parts of the VAddr (from bits 28..11) should be used in + // translation (includes Mask and MaskX from PageMask) + Addr Mask; + + // Virtual Page Number (/2) (Includes VPN2 + VPN2X .. bits 31..11 + // from EntryHi) + Addr VPN; + + // Address Space ID (8 bits) // Lower 8 bits of EntryHi + uint8_t asid; + + // Global Bit - Obtained by an *AND* of EntryLo0 and EntryLo1 G bit + bool G; + + /* Contents of Entry Lo0 */ + Addr PFN0; // Physical Frame Number - Even + bool D0; // Even entry Dirty Bit + bool V0; // Even entry Valid Bit + uint8_t C0; // Cache Coherency Bits - Even + + /* Contents of Entry Lo1 */ + Addr PFN1; // Physical Frame Number - Odd + bool D1; // Odd entry Dirty Bit + bool V1; // Odd entry Valid Bit + uint8_t C1; // Cache Coherency Bits (3 bits) + + // The next few variables are put in as optimizations to reduce TLB + // lookup overheads. For a given Mask, what is the address shift amount + // and what is the OffsetMask + int AddrShiftAmount; + int OffsetMask; + + bool + Valid() + { + return (V0 | V1); + }; + + void serialize(std::ostream &os); + + void unserialize(Checkpoint *cp, const std::string §ion); +}; + +} // PowerISA namespace + +#endif // __ARCH_POWER_PAGETABLE_H__ + diff --git a/src/arch/power/predecoder.hh b/src/arch/power/predecoder.hh new file mode 100644 index 000000000..1f3ac41cb --- /dev/null +++ b/src/arch/power/predecoder.hh @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2006 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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 + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_ARM_PREDECODER_HH__ +#define __ARCH_ARM_PREDECODER_HH__ + +#include "arch/power/types.hh" +#include "base/misc.hh" +#include "base/types.hh" + +class ThreadContext; + +namespace PowerISA +{ + +class Predecoder +{ + protected: + ThreadContext * tc; + + // The extended machine instruction being generated + ExtMachInst emi; + + public: + Predecoder(ThreadContext * _tc) + : tc(_tc) + { + } + + ThreadContext * + getTC() + { + return tc; + } + + void + setTC(ThreadContext * _tc) + { + tc = _tc; + } + + void + process() + { + } + + void + reset() + { + } + + // Use this to give data to the predecoder. This should be used + // when there is control flow. + void + moreBytes(Addr pc, Addr fetchPC, MachInst inst) + { + emi = inst; + } + + // Use this to give data to the predecoder. This should be used + // when instructions are executed in order. + void + moreBytes(MachInst machInst) + { + moreBytes(0, 0, machInst); + } + + bool + needMoreBytes() + { + return true; + } + + bool + extMachInstReady() + { + return true; + } + + // This returns a constant reference to the ExtMachInst to avoid a copy + const ExtMachInst & + getExtMachInst() + { + return emi; + } +}; + +} // PowerISA namespace + +#endif // __ARCH_POWER_PREDECODER_HH__ diff --git a/src/arch/power/process.cc b/src/arch/power/process.cc new file mode 100644 index 000000000..92f993e4c --- /dev/null +++ b/src/arch/power/process.cc @@ -0,0 +1,288 @@ +/* + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Stephen Hines + * Timothy M. Jones + */ + +#include "arch/power/isa_traits.hh" +#include "arch/power/process.hh" +#include "arch/power/types.hh" +#include "base/loader/elf_object.hh" +#include "base/loader/object_file.hh" +#include "base/misc.hh" +#include "cpu/thread_context.hh" +#include "mem/page_table.hh" +#include "mem/translating_port.hh" +#include "sim/process_impl.hh" +#include "sim/system.hh" + +using namespace std; +using namespace PowerISA; + +PowerLiveProcess::PowerLiveProcess(LiveProcessParams *params, + ObjectFile *objFile) + : LiveProcess(params, objFile) +{ + stack_base = 0xbf000000L; + + // Set pointer for next thread stack. Reserve 8M for main stack. + next_thread_stack_base = stack_base - (8 * 1024 * 1024); + + // Set up break point (Top of Heap) + brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize(); + brk_point = roundUp(brk_point, VMPageSize); + + // Set up region for mmaps. For now, start at bottom of kuseg space. + mmap_start = mmap_end = 0x70000000L; +} + +void +PowerLiveProcess::startup() +{ + argsInit(MachineBytes, VMPageSize); +} + +void +PowerLiveProcess::argsInit(int intSize, int pageSize) +{ + typedef AuxVector<uint32_t> auxv_t; + std::vector<auxv_t> auxv; + + string filename; + if (argv.size() < 1) + filename = ""; + else + filename = argv[0]; + + //We want 16 byte alignment + uint64_t align = 16; + + // Overloaded argsInit so that we can fine-tune for POWER architecture + Process::startup(); + + // load object file into target memory + objFile->loadSections(initVirtMem); + + //Setup the auxilliary vectors. These will already have endian conversion. + //Auxilliary vectors are loaded only for elf formatted executables. + ElfObject * elfObject = dynamic_cast<ElfObject *>(objFile); + if (elfObject) { + uint32_t features = 0; + + //Bits which describe the system hardware capabilities + //XXX Figure out what these should be + auxv.push_back(auxv_t(M5_AT_HWCAP, features)); + //The system page size + auxv.push_back(auxv_t(M5_AT_PAGESZ, PowerISA::VMPageSize)); + //Frequency at which times() increments + auxv.push_back(auxv_t(M5_AT_CLKTCK, 0x64)); + // For statically linked executables, this is the virtual address of the + // program header tables if they appear in the executable image + auxv.push_back(auxv_t(M5_AT_PHDR, elfObject->programHeaderTable())); + // This is the size of a program header entry from the elf file. + auxv.push_back(auxv_t(M5_AT_PHENT, elfObject->programHeaderSize())); + // This is the number of program headers from the original elf file. + auxv.push_back(auxv_t(M5_AT_PHNUM, elfObject->programHeaderCount())); + //This is the address of the elf "interpreter", It should be set + //to 0 for regular executables. It should be something else + //(not sure what) for dynamic libraries. + auxv.push_back(auxv_t(M5_AT_BASE, 0)); + + //XXX Figure out what this should be. + auxv.push_back(auxv_t(M5_AT_FLAGS, 0)); + //The entry point to the program + auxv.push_back(auxv_t(M5_AT_ENTRY, objFile->entryPoint())); + //Different user and group IDs + auxv.push_back(auxv_t(M5_AT_UID, uid())); + auxv.push_back(auxv_t(M5_AT_EUID, euid())); + auxv.push_back(auxv_t(M5_AT_GID, gid())); + auxv.push_back(auxv_t(M5_AT_EGID, egid())); + //Whether to enable "secure mode" in the executable + auxv.push_back(auxv_t(M5_AT_SECURE, 0)); + //The filename of the program + auxv.push_back(auxv_t(M5_AT_EXECFN, 0)); + //The string "v51" with unknown meaning + auxv.push_back(auxv_t(M5_AT_PLATFORM, 0)); + } + + //Figure out how big the initial stack nedes to be + + // A sentry NULL void pointer at the top of the stack. + int sentry_size = intSize; + + string platform = "v51"; + int platform_size = platform.size() + 1; + + // The aux vectors are put on the stack in two groups. The first group are + // the vectors that are generated as the elf is loaded. The second group + // are the ones that were computed ahead of time and include the platform + // string. + int aux_data_size = filename.size() + 1; + + int env_data_size = 0; + for (int i = 0; i < envp.size(); ++i) { + env_data_size += envp[i].size() + 1; + } + int arg_data_size = 0; + for (int i = 0; i < argv.size(); ++i) { + arg_data_size += argv[i].size() + 1; + } + + int info_block_size = + sentry_size + env_data_size + arg_data_size + + aux_data_size + platform_size; + + //Each auxilliary vector is two 4 byte words + int aux_array_size = intSize * 2 * (auxv.size() + 1); + + int envp_array_size = intSize * (envp.size() + 1); + int argv_array_size = intSize * (argv.size() + 1); + + int argc_size = intSize; + + //Figure out the size of the contents of the actual initial frame + int frame_size = + info_block_size + + aux_array_size + + envp_array_size + + argv_array_size + + argc_size; + + //There needs to be padding after the auxiliary vector data so that the + //very bottom of the stack is aligned properly. + int partial_size = frame_size; + int aligned_partial_size = roundUp(partial_size, align); + int aux_padding = aligned_partial_size - partial_size; + + int space_needed = frame_size + aux_padding; + + stack_min = stack_base - space_needed; + stack_min = roundDown(stack_min, align); + stack_size = stack_base - stack_min; + + // map memory + pTable->allocate(roundDown(stack_min, pageSize), + roundUp(stack_size, pageSize)); + + // map out initial stack contents + uint32_t sentry_base = stack_base - sentry_size; + uint32_t aux_data_base = sentry_base - aux_data_size; + uint32_t env_data_base = aux_data_base - env_data_size; + uint32_t arg_data_base = env_data_base - arg_data_size; + uint32_t platform_base = arg_data_base - platform_size; + uint32_t auxv_array_base = platform_base - aux_array_size - aux_padding; + uint32_t envp_array_base = auxv_array_base - envp_array_size; + uint32_t argv_array_base = envp_array_base - argv_array_size; + uint32_t argc_base = argv_array_base - argc_size; + + DPRINTF(Stack, "The addresses of items on the initial stack:\n"); + DPRINTF(Stack, "0x%x - aux data\n", aux_data_base); + DPRINTF(Stack, "0x%x - env data\n", env_data_base); + DPRINTF(Stack, "0x%x - arg data\n", arg_data_base); + DPRINTF(Stack, "0x%x - platform base\n", platform_base); + DPRINTF(Stack, "0x%x - auxv array\n", auxv_array_base); + DPRINTF(Stack, "0x%x - envp array\n", envp_array_base); + DPRINTF(Stack, "0x%x - argv array\n", argv_array_base); + DPRINTF(Stack, "0x%x - argc \n", argc_base); + DPRINTF(Stack, "0x%x - stack min\n", stack_min); + + // write contents to stack + + // figure out argc + uint32_t argc = argv.size(); + uint32_t guestArgc = PowerISA::htog(argc); + + //Write out the sentry void * + uint32_t sentry_NULL = 0; + initVirtMem->writeBlob(sentry_base, + (uint8_t*)&sentry_NULL, sentry_size); + + //Fix up the aux vectors which point to other data + for (int i = auxv.size() - 1; i >= 0; i--) { + if (auxv[i].a_type == M5_AT_PLATFORM) { + auxv[i].a_val = platform_base; + initVirtMem->writeString(platform_base, platform.c_str()); + } else if (auxv[i].a_type == M5_AT_EXECFN) { + auxv[i].a_val = aux_data_base; + initVirtMem->writeString(aux_data_base, filename.c_str()); + } + } + + //Copy the aux stuff + for (int x = 0; x < auxv.size(); x++) + { + initVirtMem->writeBlob(auxv_array_base + x * 2 * intSize, + (uint8_t*)&(auxv[x].a_type), intSize); + initVirtMem->writeBlob(auxv_array_base + (x * 2 + 1) * intSize, + (uint8_t*)&(auxv[x].a_val), intSize); + } + //Write out the terminating zeroed auxilliary vector + const uint64_t zero = 0; + initVirtMem->writeBlob(auxv_array_base + 2 * intSize * auxv.size(), + (uint8_t*)&zero, 2 * intSize); + + copyStringArray(envp, envp_array_base, env_data_base, initVirtMem); + copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem); + + initVirtMem->writeBlob(argc_base, (uint8_t*)&guestArgc, intSize); + + ThreadContext *tc = system->getThreadContext(contextIds[0]); + + //Set the stack pointer register + tc->setIntReg(StackPointerReg, stack_min); + + Addr prog_entry = objFile->entryPoint(); + tc->setPC(prog_entry); + tc->setNextPC(prog_entry + sizeof(MachInst)); + + //Align the "stack_min" to a page boundary. + stack_min = roundDown(stack_min, pageSize); +} + +PowerISA::IntReg +PowerLiveProcess::getSyscallArg(ThreadContext *tc, int &i) +{ + assert(i < 5); + return tc->readIntReg(ArgumentReg0 + i++); +} + +void +PowerLiveProcess::setSyscallArg(ThreadContext *tc, + int i, PowerISA::IntReg val) +{ + assert(i < 5); + tc->setIntReg(ArgumentReg0 + i, val); +} + +void +PowerLiveProcess::setSyscallReturn(ThreadContext *tc, + SyscallReturn return_value) +{ + tc->setIntReg(ReturnValueReg, return_value.value()); +} diff --git a/src/arch/power/process.hh b/src/arch/power/process.hh new file mode 100644 index 000000000..ede75f05f --- /dev/null +++ b/src/arch/power/process.hh @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Stephen Hines + * Timothy M. Jones + */ + +#ifndef __POWER_PROCESS_HH__ +#define __POWER_PROCESS_HH__ + +#include <string> +#include <vector> +#include "sim/process.hh" + +class LiveProcess; +class ObjectFile; +class System; + +class PowerLiveProcess : public LiveProcess +{ + protected: + PowerLiveProcess(LiveProcessParams * params, ObjectFile *objFile); + + void startup(); + + public: + void argsInit(int intSize, int pageSize); + PowerISA::IntReg getSyscallArg(ThreadContext *tc, int &i); + void setSyscallArg(ThreadContext *tc, int i, PowerISA::IntReg val); + void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); +}; + +#endif // __POWER_PROCESS_HH__ + diff --git a/src/arch/power/registers.hh b/src/arch/power/registers.hh new file mode 100644 index 000000000..5bcca3641 --- /dev/null +++ b/src/arch/power/registers.hh @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_REGISTERS_HH__ +#define __ARCH_POWER_REGISTERS_HH__ + +#include "arch/power/max_inst_regs.hh" +#include "arch/power/miscregs.hh" + +namespace PowerISA { + +using PowerISAInst::MaxInstSrcRegs; +using PowerISAInst::MaxInstDestRegs; + +typedef uint8_t RegIndex; + +typedef uint64_t IntReg; + +// Floating point register file entry type +typedef uint64_t FloatRegBits; +typedef double FloatReg; +typedef uint64_t MiscReg; + +// Constants Related to the number of registers +const int NumIntArchRegs = 32; + +// CR, XER, LR, CTR, FPSCR, RSV, RSV-LEN, RSV-ADDR +// and zero register, which doesn't actually exist but needs a number +const int NumIntSpecialRegs = 9; +const int NumFloatArchRegs = 32; +const int NumFloatSpecialRegs = 0; +const int NumInternalProcRegs = 0; + +const int NumIntRegs = NumIntArchRegs + NumIntSpecialRegs; +const int NumFloatRegs = NumFloatArchRegs + NumFloatSpecialRegs; +const int NumMiscRegs = NUM_MISCREGS; + +// Semantically meaningful register indices +const int ReturnValueReg = 3; +const int ArgumentReg0 = 3; +const int ArgumentReg1 = 4; +const int ArgumentReg2 = 5; +const int ArgumentReg3 = 6; +const int ArgumentReg4 = 7; +const int FramePointerReg = 31; +const int StackPointerReg = 1; + +// There isn't one in Power, but we need to define one somewhere +const int ZeroReg = NumIntRegs - 1; + +const int SyscallNumReg = 0; +const int SyscallPseudoReturnReg = 3; +const int SyscallSuccessReg = 3; + +// These help enumerate all the registers for dependence tracking. +const int FP_Base_DepTag = NumIntRegs; +const int Ctrl_Base_DepTag = FP_Base_DepTag + NumFloatRegs; + +typedef union { + IntReg intreg; + FloatReg fpreg; + MiscReg ctrlreg; +} AnyReg; + +enum MiscIntRegNums { + INTREG_CR = NumIntArchRegs, + INTREG_XER, + INTREG_LR, + INTREG_CTR, + INTREG_FPSCR, + INTREG_RSV, + INTREG_RSV_LEN, + INTREG_RSV_ADDR +}; + +} // PowerISA namespace + +#endif // __ARCH_POWER_REGISTERS_HH__ diff --git a/src/arch/power/remote_gdb.hh b/src/arch/power/remote_gdb.hh new file mode 100644 index 000000000..34bb4bd1f --- /dev/null +++ b/src/arch/power/remote_gdb.hh @@ -0,0 +1,84 @@ +/* + * Copyright (c) 2002-2005 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Nathan Binkert + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_ARM_REMOTE_GDB_HH__ +#define __ARCH_ARM_REMOTE_GDB_HH__ + +#include "base/remote_gdb.hh" + +namespace PowerISA +{ + +class RemoteGDB : public BaseRemoteGDB +{ + public: + RemoteGDB(System *system, ThreadContext *context) + : BaseRemoteGDB(system, context, 1) + { + } + + bool + acc(Addr, size_t) + { + panic("acc not implemented for POWER!"); + } + + void + getregs() + { + panic("getregs not implemented for POWER!"); + } + + void + setregs() + { + panic("setregs not implemented for POWER!"); + } + + void + clearSingleStep() + { + panic("clearSingleStep not implemented for POWER!"); + } + + void + setSingleStep() + { + panic("setSingleStep not implemented for POWER!"); + } +}; + +} // PowerISA namespace + +#endif /* __ARCH_POWER_REMOTE_GDB_H__ */ diff --git a/src/arch/power/stacktrace.hh b/src/arch/power/stacktrace.hh new file mode 100644 index 000000000..49d687a6e --- /dev/null +++ b/src/arch/power/stacktrace.hh @@ -0,0 +1,148 @@ +/* + * Copyright (c) 2005 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Ali Saidi + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_POWER_STACKTRACE_HH__ +#define __ARCH_POWER_STACKTRACE_HH__ + +#include "base/trace.hh" +#include "cpu/static_inst.hh" + +class ThreadContext; +class StackTrace; + +namespace PowerISA +{ + +class ProcessInfo +{ + private: + ThreadContext *tc; + + int thread_info_size; + int task_struct_size; + int task_off; + int pid_off; + int name_off; + + public: + ProcessInfo(ThreadContext *_tc); + + Addr task(Addr ksp) const; + int pid(Addr ksp) const; + std::string name(Addr ksp) const; +}; + +class StackTrace +{ + protected: + typedef TheISA::MachInst MachInst; + private: + ThreadContext *tc; + std::vector<Addr> stack; + + private: + bool isEntry(Addr addr); + bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra); + bool decodeSave(MachInst inst, int ®, int &disp); + bool decodeStack(MachInst inst, int &disp); + + void trace(ThreadContext *tc, bool is_call); + + public: + StackTrace(); + StackTrace(ThreadContext *tc, StaticInstPtr inst); + ~StackTrace(); + + void + clear() + { + tc = 0; + stack.clear(); + } + + bool + valid() const + { + return tc != NULL; + } + + bool trace(ThreadContext *tc, StaticInstPtr inst); + + public: + const std::vector<Addr> & + getstack() const + { + return stack; + } + + static const int user = 1; + static const int console = 2; + static const int unknown = 3; + +#if TRACING_ON + private: + void dump(); + + public: + void + dprintf() + { + if (DTRACE(Stack)) + dump(); + } +#else + public: + void + dprintf() + { + } +#endif +}; + +inline bool +StackTrace::trace(ThreadContext *tc, StaticInstPtr inst) +{ + if (!inst->isCall() && !inst->isReturn()) + return false; + + if (valid()) + clear(); + + trace(tc, !inst->isReturn()); + return true; +} + +} // PowerISA namespace + +#endif // __ARCH_POWER_STACKTRACE_HH__ diff --git a/src/arch/power/tlb.cc b/src/arch/power/tlb.cc new file mode 100644 index 000000000..125c92a1a --- /dev/null +++ b/src/arch/power/tlb.cc @@ -0,0 +1,322 @@ +/* + * Copyright (c) 2001-2005 The Regents of The University of Michigan + * Copyright (c) 2007 MIPS Technologies, Inc. + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Nathan Binkert + * Steve Reinhardt + * Jaidev Patwardhan + * Stephen Hines + * Timothy M. Jones + */ + +#include <string> +#include <vector> + +#include "arch/power/faults.hh" +#include "arch/power/pagetable.hh" +#include "arch/power/tlb.hh" +#include "arch/power/utility.hh" +#include "base/inifile.hh" +#include "base/str.hh" +#include "base/trace.hh" +#include "cpu/thread_context.hh" +#include "mem/page_table.hh" +#include "params/PowerTLB.hh" +#include "sim/process.hh" + + +using namespace std; +using namespace PowerISA; + +/////////////////////////////////////////////////////////////////////// +// +// POWER TLB +// + +#define MODE2MASK(X) (1 << (X)) + +TLB::TLB(const Params *p) + : BaseTLB(p), size(p->size), nlu(0) +{ + table = new PowerISA::PTE[size]; + memset(table, 0, sizeof(PowerISA::PTE[size])); + smallPages = 0; +} + +TLB::~TLB() +{ + if (table) + delete [] table; +} + +// look up an entry in the TLB +PowerISA::PTE * +TLB::lookup(Addr vpn, uint8_t asn) const +{ + // assume not found... + PowerISA::PTE *retval = NULL; + PageTable::const_iterator i = lookupTable.find(vpn); + if (i != lookupTable.end()) { + while (i->first == vpn) { + int index = i->second; + PowerISA::PTE *pte = &table[index]; + Addr Mask = pte->Mask; + Addr InvMask = ~Mask; + Addr VPN = pte->VPN; + if (((vpn & InvMask) == (VPN & InvMask)) + && (pte->G || (asn == pte->asid))) { + + // We have a VPN + ASID Match + retval = pte; + break; + } + ++i; + } + } + + DPRINTF(TLB, "lookup %#x, asn %#x -> %s ppn %#x\n", vpn, (int)asn, + retval ? "hit" : "miss", retval ? retval->PFN1 : 0); + return retval; +} + +PowerISA::PTE* +TLB::getEntry(unsigned Index) const +{ + // Make sure that Index is valid + assert(Index<size); + return &table[Index]; +} + +int +TLB::probeEntry(Addr vpn,uint8_t asn) const +{ + // assume not found... + PowerISA::PTE *retval = NULL; + int Ind = -1; + PageTable::const_iterator i = lookupTable.find(vpn); + if (i != lookupTable.end()) { + while (i->first == vpn) { + int index = i->second; + PowerISA::PTE *pte = &table[index]; + Addr Mask = pte->Mask; + Addr InvMask = ~Mask; + Addr VPN = pte->VPN; + if (((vpn & InvMask) == (VPN & InvMask)) + && (pte->G || (asn == pte->asid))) { + + // We have a VPN + ASID Match + retval = pte; + Ind = index; + break; + } + ++i; + } + } + + DPRINTF(Power, "VPN: %x, asid: %d, Result of TLBP: %d\n", vpn, asn, Ind); + return Ind; +} + +inline Fault +TLB::checkCacheability(RequestPtr &req) +{ + Addr VAddrUncacheable = 0xA0000000; + if ((req->getVaddr() & VAddrUncacheable) == VAddrUncacheable) { + + // mark request as uncacheable + req->setFlags(Request::UNCACHEABLE); + } + return NoFault; +} + +void +TLB::insertAt(PowerISA::PTE &pte, unsigned Index, int _smallPages) +{ + smallPages=_smallPages; + if (Index > size){ + warn("Attempted to write at index (%d) beyond TLB size (%d)", + Index, size); + } else { + + // Update TLB + if (table[Index].V0 == true || table[Index].V1 == true) { + + // Previous entry is valid + PageTable::iterator i = lookupTable.find(table[Index].VPN); + lookupTable.erase(i); + } + table[Index]=pte; + + // Update fast lookup table + lookupTable.insert(make_pair(table[Index].VPN, Index)); + } +} + +// insert a new TLB entry +void +TLB::insert(Addr addr, PowerISA::PTE &pte) +{ + fatal("TLB Insert not yet implemented\n"); +} + +void +TLB::flushAll() +{ + DPRINTF(TLB, "flushAll\n"); + memset(table, 0, sizeof(PowerISA::PTE[size])); + lookupTable.clear(); + nlu = 0; +} + +void +TLB::serialize(ostream &os) +{ + SERIALIZE_SCALAR(size); + SERIALIZE_SCALAR(nlu); + + for (int i = 0; i < size; i++) { + nameOut(os, csprintf("%s.PTE%d", name(), i)); + table[i].serialize(os); + } +} + +void +TLB::unserialize(Checkpoint *cp, const string §ion) +{ + UNSERIALIZE_SCALAR(size); + UNSERIALIZE_SCALAR(nlu); + + for (int i = 0; i < size; i++) { + table[i].unserialize(cp, csprintf("%s.PTE%d", section, i)); + if (table[i].V0 || table[i].V1) { + lookupTable.insert(make_pair(table[i].VPN, i)); + } + } +} + +void +TLB::regStats() +{ + read_hits + .name(name() + ".read_hits") + .desc("DTB read hits") + ; + + read_misses + .name(name() + ".read_misses") + .desc("DTB read misses") + ; + + + read_accesses + .name(name() + ".read_accesses") + .desc("DTB read accesses") + ; + + write_hits + .name(name() + ".write_hits") + .desc("DTB write hits") + ; + + write_misses + .name(name() + ".write_misses") + .desc("DTB write misses") + ; + + + write_accesses + .name(name() + ".write_accesses") + .desc("DTB write accesses") + ; + + hits + .name(name() + ".hits") + .desc("DTB hits") + ; + + misses + .name(name() + ".misses") + .desc("DTB misses") + ; + + invalids + .name(name() + ".invalids") + .desc("DTB access violations") + ; + + accesses + .name(name() + ".accesses") + .desc("DTB accesses") + ; + + hits = read_hits + write_hits; + misses = read_misses + write_misses; + accesses = read_accesses + write_accesses; +} + +Fault +TLB::translateAtomic(RequestPtr req, ThreadContext *tc, Mode mode) +{ +#if !FULL_SYSTEM + Process * p = tc->getProcessPtr(); + + Fault fault = p->pTable->translate(req); + if (fault != NoFault) + return fault; + + return NoFault; +#else + fatal("translate atomic not yet implemented\n"); +#endif +} + +void +TLB::translateTiming(RequestPtr req, ThreadContext *tc, + Translation *translation, Mode mode) +{ + assert(translation); + translation->finish(translateAtomic(req, tc, mode), req, tc, mode); +} + +PowerISA::PTE & +TLB::index(bool advance) +{ + PowerISA::PTE *pte = &table[nlu]; + + if (advance) + nextnlu(); + + return *pte; +} + +PowerISA::TLB * +PowerTLBParams::create() +{ + return new PowerISA::TLB(this); +} diff --git a/src/arch/power/tlb.hh b/src/arch/power/tlb.hh new file mode 100644 index 000000000..8b6c7233d --- /dev/null +++ b/src/arch/power/tlb.hh @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2001-2005 The Regents of The University of Michigan + * Copyright (c) 2007 MIPS Technologies, Inc. + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Nathan Binkert + * Steve Reinhardt + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_POWER_TLB_HH__ +#define __ARCH_POWER_TLB_HH__ + +#include <map> + +#include "arch/power/isa_traits.hh" +#include "arch/power/utility.hh" +#include "arch/power/vtophys.hh" +#include "arch/power/pagetable.hh" +#include "base/statistics.hh" +#include "mem/request.hh" +#include "params/PowerTLB.hh" +#include "sim/faults.hh" +#include "sim/tlb.hh" + +class ThreadContext; + +namespace PowerISA { + +// This is copied from the ARM ISA and has not been checked against the +// Power at all. +struct TlbEntry +{ + Addr _pageStart; + + TlbEntry() + { + } + + TlbEntry(Addr asn, Addr vaddr, Addr paddr) + : _pageStart(paddr) + { + } + + void + updateVaddr(Addr new_vaddr) + { + panic("unimplemented"); + } + + Addr + pageStart() + { + return _pageStart; + } + + void + serialize(std::ostream &os) + { + SERIALIZE_SCALAR(_pageStart); + } + + void + unserialize(Checkpoint *cp, const std::string §ion) + { + UNSERIALIZE_SCALAR(_pageStart); + } +}; + +class TLB : public BaseTLB +{ + protected: + typedef std::multimap<Addr, int> PageTable; + PageTable lookupTable; // Quick lookup into page table + + PowerISA::PTE *table; // the Page Table + int size; // TLB Size + int nlu; // not last used entry (for replacement) + + void + nextnlu() + { + if (++nlu >= size) { + nlu = 0; + } + } + + PowerISA::PTE *lookup(Addr vpn, uint8_t asn) const; + + mutable Stats::Scalar read_hits; + mutable Stats::Scalar read_misses; + mutable Stats::Scalar read_acv; + mutable Stats::Scalar read_accesses; + mutable Stats::Scalar write_hits; + mutable Stats::Scalar write_misses; + mutable Stats::Scalar write_acv; + mutable Stats::Scalar write_accesses; + Stats::Formula hits; + Stats::Formula misses; + Stats::Formula invalids; + Stats::Formula accesses; + + public: + typedef PowerTLBParams Params; + TLB(const Params *p); + virtual ~TLB(); + + int probeEntry(Addr vpn,uint8_t) const; + PowerISA::PTE *getEntry(unsigned) const; + + int smallPages; + + int + getsize() const + { + return size; + } + + PowerISA::PTE &index(bool advance = true); + void insert(Addr vaddr, PowerISA::PTE &pte); + void insertAt(PowerISA::PTE &pte, unsigned Index, int _smallPages); + void flushAll(); + + void + demapPage(Addr vaddr, uint64_t asn) + { + panic("demapPage unimplemented.\n"); + } + + // static helper functions... really + static bool validVirtualAddress(Addr vaddr); + static Fault checkCacheability(RequestPtr &req); + Fault translateAtomic(RequestPtr req, ThreadContext *tc, Mode mode); + void translateTiming(RequestPtr req, ThreadContext *tc, + Translation *translation, Mode mode); + + // Checkpointing + void serialize(std::ostream &os); + void unserialize(Checkpoint *cp, const std::string §ion); + void regStats(); +}; + +} // PowerISA namespace + +#endif // __ARCH_POWER_TLB_HH__ diff --git a/src/arch/power/types.hh b/src/arch/power/types.hh new file mode 100644 index 000000000..7b994adc9 --- /dev/null +++ b/src/arch/power/types.hh @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * 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: Timothy M. Jones + */ + +#ifndef __ARCH_POWER_TYPES_HH__ +#define __ARCH_POWER_TYPES_HH__ + +#include "base/bitunion.hh" +#include "base/types.hh" + +namespace PowerISA +{ + +typedef uint32_t MachInst; + +BitUnion32(ExtMachInst) + + // Registers + Bitfield<25, 21> rs; + Bitfield<20, 16> ra; + + // Shifts and masks + Bitfield<15, 11> sh; + Bitfield<10, 6> mb; + Bitfield< 5, 1> me; + + // Immediate fields + Bitfield<15, 0> si; + Bitfield<15, 0> d; + + // Special purpose register identifier + Bitfield<20, 11> spr; + Bitfield<25, 2> li; + Bitfield<1> aa; + Bitfield<25, 23> bf; + Bitfield<15, 2> bd; + Bitfield<25, 21> bo; + Bitfield<20, 16> bi; + Bitfield<20, 18> bfa; + + // Record bits + Bitfield<0> rc31; + Bitfield<10> oe; + + // Condition register fields + Bitfield<25, 21> bt; + Bitfield<20, 16> ba; + Bitfield<15, 11> bb; + + // FXM field for mtcrf instruction + Bitfield<19, 12> fxm; +EndBitUnion(ExtMachInst) + +// typedef uint64_t LargestRead; +// // Need to use 64 bits to make sure that read requests get handled properly + +// typedef int RegContextParam; +// typedef int RegContextVal; + +struct CoreSpecific { +}; + +} // PowerISA namspace + +#endif // __ARCH_POWER_TYPES_HH__ diff --git a/src/arch/power/utility.hh b/src/arch/power/utility.hh new file mode 100644 index 000000000..442075aa2 --- /dev/null +++ b/src/arch/power/utility.hh @@ -0,0 +1,118 @@ +/* + * Copyright (c) 2003-2005 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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 + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_POWER_UTILITY_HH__ +#define __ARCH_POWER_UTILITY_HH__ + +#include "arch/power/miscregs.hh" +#include "arch/power/types.hh" +#include "base/hashmap.hh" +#include "base/types.hh" +#include "cpu/thread_context.hh" + +namespace __hash_namespace { + +template<> +struct hash<PowerISA::ExtMachInst> : public hash<uint32_t> { + size_t operator()(const PowerISA::ExtMachInst &emi) const { + return hash<uint32_t>::operator()((uint32_t)emi); + }; +}; + +} // __hash_namespace namespace + +namespace PowerISA { + +/** + * Function to ensure ISA semantics about 0 registers. + * @param tc The thread context. + */ +template <class TC> +void zeroRegisters(TC *tc); + +// Instruction address compression hooks +static inline Addr +realPCToFetchPC(const Addr &addr) +{ + return addr; +} + +static inline Addr +fetchPCToRealPC(const Addr &addr) +{ + return addr; +} + +// the size of "fetched" instructions +static inline size_t +fetchInstSize() +{ + return sizeof(MachInst); +} + +static inline MachInst +makeRegisterCopy(int dest, int src) +{ + panic("makeRegisterCopy not implemented"); + return 0; +} + +inline void +startupCPU(ThreadContext *tc, int cpuId) +{ + tc->activate(0); +} + +template <class XC> +Fault +checkFpEnableFault(XC *xc) +{ + return NoFault; +} + +static inline void +copyRegs(ThreadContext *src, ThreadContext *dest) +{ + panic("Copy Regs Not Implemented Yet\n"); +} + +static inline void +copyMiscRegs(ThreadContext *src, ThreadContext *dest) +{ + panic("Copy Misc. Regs Not Implemented Yet\n"); +} + +} // PowerISA namespace + +#endif // __ARCH_POWER_UTILITY_HH__ diff --git a/src/arch/power/vtophys.hh b/src/arch/power/vtophys.hh new file mode 100644 index 000000000..3cfebcfc7 --- /dev/null +++ b/src/arch/power/vtophys.hh @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2002-2005 The Regents of The University of Michigan + * Copyright (c) 2007-2008 The Florida State University + * Copyright (c) 2009 The University of Edinburgh + * 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: Ali Saidi + * Nathan Binkert + * Stephen Hines + * Timothy M. Jones + */ + +#ifndef __ARCH_POWER_VTOPHYS_HH__ +#define __ARCH_POWER_VTOPHYS_HH__ + +#include "arch/power/isa_traits.hh" +#include "arch/power/utility.hh" + + +class ThreadContext; +class FunctionalPort; + +namespace PowerISA { + +inline Addr +PteAddr(Addr a) +{ + return (a & PteMask) << PteShift; +} + +} // PowerISA namespace + +#endif // __ARCH_POWER_VTOPHYS_HH__ + diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa index e34ca033f..ce5e34ff0 100644 --- a/src/arch/sparc/isa/decoder.isa +++ b/src/arch/sparc/isa/decoder.isa @@ -226,7 +226,8 @@ decode OP default Unknown::unknown() if(Rs2_or_imm13.udw == 0) fault = new DivisionByZero; else Rd = Rs1.udw / Rs2_or_imm13.udw;}}); 0x1E: IntOpCcRes::udivcc({{ - uint32_t resTemp, val2 = Rs2_or_imm13.udw; + uint64_t resTemp; + uint32_t val2 = Rs2_or_imm13.udw; int32_t overflow = 0; if(val2 == 0) fault = new DivisionByZero; else diff --git a/src/arch/sparc/linux/linux.hh b/src/arch/sparc/linux/linux.hh index b1dc691ce..1f7567d43 100644 --- a/src/arch/sparc/linux/linux.hh +++ b/src/arch/sparc/linux/linux.hh @@ -77,6 +77,22 @@ class SparcLinux : public Linux static const int NUM_OPEN_FLAGS; static const unsigned TGT_MAP_ANONYMOUS = 0x20; + + typedef struct { + int64_t uptime; /* Seconds since boot */ + uint64_t loads[3]; /* 1, 5, and 15 minute load averages */ + uint64_t totalram; /* Total usable main memory size */ + uint64_t freeram; /* Available memory size */ + uint64_t sharedram; /* Amount of shared memory */ + uint64_t bufferram; /* Memory used by buffers */ + uint64_t totalswap; /* Total swap space size */ + uint64_t freeswap; /* swap space still available */ + uint16_t procs; /* Number of current processes */ + uint64_t totalhigh; /* Total high memory size */ + uint64_t freehigh; /* Available high memory size */ + uint64_t mem_unit; /* Memory unit size in bytes */ + } tgt_sysinfo; + }; class Sparc32Linux : public SparcLinux @@ -105,6 +121,22 @@ class Sparc32Linux : public SparcLinux uint32_t __unused4; uint32_t __unused5; } tgt_stat64; + + typedef struct { + int32_t uptime; /* Seconds since boot */ + uint32_t loads[3]; /* 1, 5, and 15 minute load averages */ + uint32_t totalram; /* Total usable main memory size */ + uint32_t freeram; /* Available memory size */ + uint32_t sharedram; /* Amount of shared memory */ + uint32_t bufferram; /* Memory used by buffers */ + uint32_t totalswap; /* Total swap space size */ + uint32_t freeswap; /* swap space still available */ + uint16_t procs; /* Number of current processes */ + uint32_t totalhigh; /* Total high memory size */ + uint32_t freehigh; /* Available high memory size */ + uint32_t mem_unit; /* Memory unit size in bytes */ + } tgt_sysinfo; + }; #endif diff --git a/src/arch/sparc/linux/syscalls.cc b/src/arch/sparc/linux/syscalls.cc index f4781d886..874ddc005 100644 --- a/src/arch/sparc/linux/syscalls.cc +++ b/src/arch/sparc/linux/syscalls.cc @@ -41,7 +41,8 @@ static SyscallReturn unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, 0)); + int index = 0; + TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index)); strcpy(name->sysname, "Linux"); strcpy(name->nodename, "m5.eecs.umich.edu"); @@ -59,9 +60,10 @@ SyscallReturn getresuidFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { const IntReg id = htog(100); - Addr ruid = p->getSyscallArg(tc, 0); - Addr euid = p->getSyscallArg(tc, 1); - Addr suid = p->getSyscallArg(tc, 2); + int index = 0; + Addr ruid = p->getSyscallArg(tc, index); + Addr euid = p->getSyscallArg(tc, index); + Addr suid = p->getSyscallArg(tc, index); //Handle the EFAULT case //Set the ruid if(ruid) @@ -302,7 +304,7 @@ SyscallDesc SparcLinuxProcess::syscall32Descs[] = { /* 211 */ SyscallDesc("tgkill", unimplementedFunc), //32 bit /* 212 */ SyscallDesc("waitpid", unimplementedFunc), //32 bit /* 213 */ SyscallDesc("swapoff", unimplementedFunc), - /* 214 */ SyscallDesc("sysinfo", unimplementedFunc), //32 bit + /* 214 */ SyscallDesc("sysinfo", sysinfoFunc<Sparc32Linux>), //32 bit /* 215 */ SyscallDesc("ipc", unimplementedFunc), //32 bit /* 216 */ SyscallDesc("sigreturn", unimplementedFunc), //32 bit /* 217 */ SyscallDesc("clone", cloneFunc), @@ -608,7 +610,7 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = { /* 211 */ SyscallDesc("tgkill", unimplementedFunc), /* 212 */ SyscallDesc("waitpid", unimplementedFunc), /* 213 */ SyscallDesc("swapoff", unimplementedFunc), - /* 214 */ SyscallDesc("sysinfo", unimplementedFunc), + /* 214 */ SyscallDesc("sysinfo", sysinfoFunc<SparcLinux>), /* 215 */ SyscallDesc("ipc", unimplementedFunc), /* 216 */ SyscallDesc("sigreturn", unimplementedFunc), /* 217 */ SyscallDesc("clone", cloneFunc), diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc index 89e853573..7e01f6b07 100644 --- a/src/arch/sparc/process.cc +++ b/src/arch/sparc/process.cc @@ -514,10 +514,10 @@ void Sparc64LiveProcess::flushWindows(ThreadContext *tc) } IntReg -Sparc32LiveProcess::getSyscallArg(ThreadContext *tc, int i) +Sparc32LiveProcess::getSyscallArg(ThreadContext *tc, int &i) { assert(i < 6); - return bits(tc->readIntReg(FirstArgumentReg + i), 31, 0); + return bits(tc->readIntReg(FirstArgumentReg + i++), 31, 0); } void @@ -528,10 +528,10 @@ Sparc32LiveProcess::setSyscallArg(ThreadContext *tc, int i, IntReg val) } IntReg -Sparc64LiveProcess::getSyscallArg(ThreadContext *tc, int i) +Sparc64LiveProcess::getSyscallArg(ThreadContext *tc, int &i) { assert(i < 6); - return tc->readIntReg(FirstArgumentReg + i); + return tc->readIntReg(FirstArgumentReg + i++); } void diff --git a/src/arch/sparc/process.hh b/src/arch/sparc/process.hh index fdb9734ba..cca312e0a 100644 --- a/src/arch/sparc/process.hh +++ b/src/arch/sparc/process.hh @@ -95,7 +95,7 @@ class Sparc32LiveProcess : public SparcLiveProcess void flushWindows(ThreadContext *tc); - SparcISA::IntReg getSyscallArg(ThreadContext *tc, int i); + SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i); void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val); }; @@ -123,7 +123,7 @@ class Sparc64LiveProcess : public SparcLiveProcess void flushWindows(ThreadContext *tc); - SparcISA::IntReg getSyscallArg(ThreadContext *tc, int i); + SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i); void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val); }; diff --git a/src/arch/sparc/solaris/process.cc b/src/arch/sparc/solaris/process.cc index eafb488df..24abd8687 100644 --- a/src/arch/sparc/solaris/process.cc +++ b/src/arch/sparc/solaris/process.cc @@ -48,7 +48,8 @@ static SyscallReturn unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<Solaris::utsname> name(process->getSyscallArg(tc, 0)); + int index = 0; + TypedBufferArg<Solaris::utsname> name(process->getSyscallArg(tc, index)); strcpy(name->sysname, "SunOS"); strcpy(name->nodename, "m5.eecs.umich.edu"); diff --git a/src/arch/x86/X86TLB.py b/src/arch/x86/X86TLB.py index 15b03fd33..9f7dc43b3 100644 --- a/src/arch/x86/X86TLB.py +++ b/src/arch/x86/X86TLB.py @@ -53,13 +53,14 @@ # # Authors: Gabe Black -from MemObject import MemObject +from m5.defines import buildEnv from m5.params import * from m5.proxy import * -from m5 import build_env + from BaseTLB import BaseTLB +from MemObject import MemObject -if build_env['FULL_SYSTEM']: +if buildEnv['FULL_SYSTEM']: class X86PagetableWalker(MemObject): type = 'X86PagetableWalker' cxx_class = 'X86ISA::Walker' @@ -70,6 +71,6 @@ class X86TLB(BaseTLB): type = 'X86TLB' cxx_class = 'X86ISA::TLB' size = Param.Int(64, "TLB size") - if build_env['FULL_SYSTEM']: + if buildEnv['FULL_SYSTEM']: walker = Param.X86PagetableWalker(\ X86PagetableWalker(), "page table walker") diff --git a/src/arch/x86/interrupts.cc b/src/arch/x86/interrupts.cc index 1b7933036..1b83c6649 100644 --- a/src/arch/x86/interrupts.cc +++ b/src/arch/x86/interrupts.cc @@ -500,7 +500,7 @@ X86ISA::Interrupts::setReg(ApicRegIndex reg, uint32_t val) InterruptCommandRegHigh high = regs[APIC_INTERRUPT_COMMAND_HIGH]; // Record that an IPI is being sent. low.deliveryStatus = 1; - TriggerIntMessage message; + TriggerIntMessage message = 0; message.destination = high.destination; message.vector = low.vector; message.deliveryMode = low.deliveryMode; diff --git a/src/arch/x86/isa.cc b/src/arch/x86/isa.cc index 06a656efc..47d24ed1e 100644 --- a/src/arch/x86/isa.cc +++ b/src/arch/x86/isa.cc @@ -41,7 +41,7 @@ void ISA::updateHandyM5Reg(Efer efer, CR0 cr0, SegAttr csAttr, SegAttr ssAttr, RFLAGS rflags) { - HandyM5Reg m5reg; + HandyM5Reg m5reg = 0; if (efer.lma) { m5reg.mode = LongMode; if (csAttr.longMode) diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa index c23eeccab..288c5e5a8 100644 --- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa @@ -604,7 +604,7 @@ } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { - 0x7: WarnUnimpl::movdqu_Vo_Wo(); + 0x7: MOVDQU(Vo,Wo); default: UD2(); } // operand size (0x66) @@ -615,8 +615,8 @@ 0x3: PACKSSDW(Vo,Wo); 0x4: PUNPCKLQDQ(Vo,Wq); 0x5: PUNPCKHQDQ(Vo,Wq); - 0x6: WarnUnimpl::movd_Vo_Ed(); - 0x7: WarnUnimpl::movdqa_Vo_Wo(); + 0x6: MOVD(Vo,Edp); + 0x7: MOVDQA(Vo,Wo); } default: UD2(); } @@ -673,9 +673,9 @@ //0x3: group14_pshimq(); 0x3: decode MODRM_REG { 0x2: PSRLQ(VRo,Ib); - 0x3: WarnUnimpl::psrldq_VRo_Ib(); + 0x3: PSRLDQ(VRo,Ib); 0x6: PSLLQ(VRo,Ib); - 0x7: WarnUnimpl::pslldq_VRo_Ib(); + 0x7: PSLLDQ(VRo,Ib); default: UD2(); } 0x4: PCMPEQB(Vo,Wo); @@ -702,15 +702,15 @@ // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x6: MOVQ(Vq,Wq); - 0x7: WarnUnimpl::movdqu_Wo_Vo(); + 0x7: MOVDQU(Wo,Vo); default: UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { - 0x4: WarnUnimpl::haddpd_Vo_Wo(); + 0x4: HADDPD(Vo,Wo); 0x5: WarnUnimpl::hsubpd_Vo_Wo(); - 0x6: WarnUnimpl::movd_Ed_Vd(); - 0x7: WarnUnimpl::movdqa_Wo_Vo(); + 0x6: MOVD(Edp,Vd); + 0x7: MOVDQA(Wo,Vo); default: UD2(); } // repne (0xF2) diff --git a/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py b/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py index a9ad611b7..1c0650683 100644 --- a/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py +++ b/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py @@ -62,7 +62,7 @@ def macroop IRET_PROT { .adjust_env oszIn64Override # Check for a nested task. This isn't supported at the moment. - rflag t1, NT + rflag t1, 14; #NT bit panic "Task switching with iret is unimplemented!", flags=(nCEZF,) #t1 = temp_RIP diff --git a/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py b/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py index 7ccdca6c3..51f5ad23b 100644 --- a/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py +++ b/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py @@ -355,6 +355,36 @@ def macroop MOVNTI_P_R { rdip t7 st reg, seg, riprel, disp }; + +def macroop MOVD_XMM_R { + mov2fp xmml, regm, srcSize=dsz, destSize=8 + lfpimm xmmh, 0 +}; + +def macroop MOVD_XMM_M { + ldfp xmml, seg, sib, disp, dataSize=dsz + lfpimm xmmh, 0 +}; + +def macroop MOVD_XMM_P { + rdip t7 + ldfp xmml, seg, riprel, disp, dataSize=dsz + lfpimm xmmh, 0 +}; + +def macroop MOVD_R_XMM { + mov2int reg, xmmlm, size=dsz +}; + +def macroop MOVD_M_XMM { + stfp xmml, seg, sib, disp, dataSize=dsz +}; + +def macroop MOVD_P_XMM { + rdip t7 + stfp xmml, seg, riprel, disp, dataSize=dsz +}; + ''' #let {{ # class MOVD(Inst): diff --git a/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py b/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py index 8b307d3da..adf7650b9 100644 --- a/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py +++ b/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py @@ -55,5 +55,25 @@ microcode = ''' # HADDPS -# HADDPD + +def macroop HADDPD_XMM_XMM { + maddf ufp1, xmmh , xmml, size=8, ext=1 + maddf xmmh, xmmlm, xmmhm, size=8, ext=1 + movfp xmml, ufp1 +}; + +def macroop HADDPD_XMM_M { + ldfp ufp1, seg, sib, disp, dataSize=8 + ldfp ufp2, seg, sib, "DISPLACEMENT+8", dataSize=8 + maddf xmml, xmmh, xmml, size=8, ext=1 + maddf xmmh, ufp1, ufp2, size=8, ext=1 +}; + +def macroop HADDPD_XMM_P { + rdip t7 + ldfp ufp1, seg, riprel, disp, dataSize=8 + ldfp ufp2, seg, riprel, "DISPLACEMENT+8", dataSize=8 + maddf xmml, xmmh, xmml, size=8, ext=1 + maddf xmmh, ufp1, ufp2, size=8, ext=1 +}; ''' diff --git a/src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move.py b/src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move.py index 1f4044bde..86ac89ade 100644 --- a/src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move.py +++ b/src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move.py @@ -168,41 +168,39 @@ def macroop MOVUPD_P_XMM { }; def macroop MOVHPS_XMM_M { - ldfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 + ldfp xmmh, seg, sib, disp, dataSize=8 }; def macroop MOVHPS_XMM_P { rdip t7 - ldfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 + ldfp xmmh, seg, riprel, disp, dataSize=8 }; def macroop MOVHPS_M_XMM { - stfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 + stfp xmmh, seg, sib, disp, dataSize=8 }; def macroop MOVHPS_P_XMM { rdip t7 - stfp xmml, seg, riprel, "DISPLACEMENT", dataSize=8 - stfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 + stfp xmmh, seg, riprel, disp, dataSize=8 }; def macroop MOVHPD_XMM_M { - ldfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 + ldfp xmmh, seg, sib, disp, dataSize=8 }; def macroop MOVHPD_XMM_P { rdip t7 - ldfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 + ldfp xmmh, seg, riprel, disp, dataSize=8 }; def macroop MOVHPD_M_XMM { - stfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 + stfp xmmh, seg, sib, disp, dataSize=8 }; def macroop MOVHPD_P_XMM { rdip t7 - stfp xmml, seg, riprel, "DISPLACEMENT", dataSize=8 - stfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 + stfp xmmh, seg, riprel, disp, dataSize=8 }; def macroop MOVLPS_XMM_M { diff --git a/src/arch/x86/isa/insts/simd128/integer/data_transfer/move.py b/src/arch/x86/isa/insts/simd128/integer/data_transfer/move.py index c34bd42bb..ec80ffe73 100644 --- a/src/arch/x86/isa/insts/simd128/integer/data_transfer/move.py +++ b/src/arch/x86/isa/insts/simd128/integer/data_transfer/move.py @@ -87,7 +87,59 @@ def macroop MOVQ2DQ_XMM_MMX { movfp xmml, mmxm, dataSize=8 lfpimm xmmh, 0 }; + +def macroop MOVDQA_XMM_XMM { + movfp xmml, xmmlm + movfp xmmh, xmmhm +}; + +def macroop MOVDQA_XMM_M { + ldfp xmml, seg, sib, "DISPLACEMENT", dataSize=8 + ldfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 +}; + +def macroop MOVDQA_XMM_P { + rdip t7 + ldfp xmml, seg, riprel, "DISPLACEMENT", dataSize=8 + ldfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 +}; + +def macroop MOVDQA_M_XMM { + stfp xmml, seg, sib, "DISPLACEMENT", dataSize=8 + stfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 +}; + +def macroop MOVDQA_P_XMM { + rdip t7 + stfp xmml, seg, riprel, "DISPLACEMENT", dataSize=8 + stfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 +}; + +def macroop MOVDQU_XMM_XMM { + movfp xmml, xmmlm + movfp xmmh, xmmhm +}; + +def macroop MOVDQU_XMM_M { + ldfp xmml, seg, sib, "DISPLACEMENT", dataSize=8 + ldfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 +}; + +def macroop MOVDQU_XMM_P { + rdip t7 + ldfp xmml, seg, riprel, "DISPLACEMENT", dataSize=8 + ldfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 +}; + +def macroop MOVDQU_M_XMM { + stfp xmml, seg, sib, "DISPLACEMENT", dataSize=8 + stfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 +}; + +def macroop MOVDQU_P_XMM { + rdip t7 + stfp xmml, seg, riprel, "DISPLACEMENT", dataSize=8 + stfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 +}; ''' -# MOVDQA -# MOVDQU # LDDQU diff --git a/src/arch/x86/isa/insts/simd128/integer/shift/left_logical_shift.py b/src/arch/x86/isa/insts/simd128/integer/shift/left_logical_shift.py index 617033bc0..c13c7064c 100644 --- a/src/arch/x86/isa/insts/simd128/integer/shift/left_logical_shift.py +++ b/src/arch/x86/isa/insts/simd128/integer/shift/left_logical_shift.py @@ -122,5 +122,43 @@ def macroop PSLLQ_XMM_I { mslli xmml, xmml, imm, size=8, ext=0 mslli xmmh, xmmh, imm, size=8, ext=0 }; + +def macroop PSLLDQ_XMM_I { + + limm t2, 8 + subi t1, t2, imm, flags=(ECF,), dataSize=1 + br label("pslldq_less_8"), flags=(nCECF,) + + # Greater than 8 + + limm t2, 16 + subi t1, t2, imm, flags=(ECF,), dataSize=1 + br label("pslldq_less_16"), flags=(nCECF,) + + # Greater than 16 + + lfpimm xmml, 0 + lfpimm xmmh, 0 + br label("pslldq_end") + +pslldq_less_16: + + # Between 8 and 16 + + mslli xmmh, xmml, "(IMMEDIATE-8)<<3", size=8, ext=0 + lfpimm xmml, 0 + br label("pslldq_end") + +pslldq_less_8: + + # Less than 8 + + msrli ufp1, xmml, "(8-IMMEDIATE) << 3", size=8, ext=0 + mslli xmmh, xmmh, "IMMEDIATE << 3", size=8, ext=0 + mslli xmml, xmml, "IMMEDIATE << 3", size=8, ext=0 + mor xmmh, xmmh, ufp1 + +pslldq_end: + fault "NoFault" +}; ''' -# PSLLDQ diff --git a/src/arch/x86/isa/insts/simd128/integer/shift/right_logical_shift.py b/src/arch/x86/isa/insts/simd128/integer/shift/right_logical_shift.py index c904eaf50..61efe1a5d 100644 --- a/src/arch/x86/isa/insts/simd128/integer/shift/right_logical_shift.py +++ b/src/arch/x86/isa/insts/simd128/integer/shift/right_logical_shift.py @@ -122,5 +122,41 @@ def macroop PSRLQ_XMM_I { msrli xmml, xmml, imm, size=8, ext=0 msrli xmmh, xmmh, imm, size=8, ext=0 }; + +def macroop PSRLDQ_XMM_I { + limm t2, 8 + subi t1, t2, imm, flags=(ECF,), dataSize=1 + br label("psrldq_less_8"), flags=(nCECF,) + # Greater than 8 + + limm t2, 16 + subi t1, t2, imm, flags=(ECF,), dataSize=1 + br label("psrldq_less_16"), flags=(nCECF,) + + # Greater than 16 + + lfpimm xmml, 0 + lfpimm xmmh, 0 + br label("psrldq_end") + +psrldq_less_16: + + # Between 8 and 16 + + msrli xmml, xmmh, "(IMMEDIATE-8)<<3", size=8, ext=0 + lfpimm xmmh, 0 + br label("psrldq_end") + +psrldq_less_8: + + # Less than 8 + + mslli ufp1, xmmh, "(8-IMMEDIATE) << 3", size=8, ext=0 + msrli xmml, xmml, "IMMEDIATE << 3", size=8, ext=0 + msrli xmmh, xmmh, "IMMEDIATE << 3", size=8, ext=0 + mor xmml, xmml, ufp1 + +psrldq_end: + fault "NoFault" +}; ''' -# PSRLDQ diff --git a/src/arch/x86/isa/insts/system/segmentation.py b/src/arch/x86/isa/insts/system/segmentation.py index b83fcba95..c97f2f152 100644 --- a/src/arch/x86/isa/insts/system/segmentation.py +++ b/src/arch/x86/isa/insts/system/segmentation.py @@ -179,7 +179,8 @@ def macroop LTR_R wrdh t3, t1, t2 wrdl tr, t1, reg wrbase tr, t3, dataSize=8 - ori t1, t1, (1 << 9) + limm t5, (1 << 9) + or t1, t1, t5 st t1, tsg, [8, t4, t0], dataSize=8 }; @@ -195,7 +196,8 @@ def macroop LTR_M wrdh t3, t1, t2 wrdl tr, t1, t5 wrbase tr, t3, dataSize=8 - ori t1, t1, (1 << 9) + limm t5, (1 << 9) + or t1, t1, t5 st t1, tsg, [8, t4, t0], dataSize=8 }; @@ -212,7 +214,8 @@ def macroop LTR_P wrdh t3, t1, t2 wrdl tr, t1, t5 wrbase tr, t3, dataSize=8 - ori t1, t1, (1 << 9) + limm t5, (1 << 9) + or t1, t1, t5 st t1, tsg, [8, t4, t0], dataSize=8 }; diff --git a/src/arch/x86/isa/microops/ldstop.isa b/src/arch/x86/isa/microops/ldstop.isa index 912aa3511..afe1ead59 100644 --- a/src/arch/x86/isa/microops/ldstop.isa +++ b/src/arch/x86/isa/microops/ldstop.isa @@ -157,7 +157,7 @@ def template MicroLoadExecute {{ if (fault == NoFault) { %(code)s; - } else if (memFlags & Request::PF_EXCLUSIVE) { + } else if (memFlags & Request::PREFETCH) { // For prefetches, ignore any faults/exceptions. return NoFault; } @@ -374,7 +374,7 @@ let {{ if atCPL0: self.memFlags += " | (CPL0FlagBit << FlagShift)" if prefetch: - self.memFlags += " | Request::PF_EXCLUSIVE" + self.memFlags += " | Request::PREFETCH" self.memFlags += " | (machInst.legacy.addr ? " + \ "(AddrSizeFlagBit << FlagShift) : 0)" diff --git a/src/arch/x86/isa/microops/mediaop.isa b/src/arch/x86/isa/microops/mediaop.isa index 9c53fa0fb..4052f254d 100644 --- a/src/arch/x86/isa/microops/mediaop.isa +++ b/src/arch/x86/isa/microops/mediaop.isa @@ -452,7 +452,7 @@ let {{ if (signBit) { if (overflow != mask(destBits - srcBits + 1)) { if (ext & 0x1) - picked = (1 << (destBits - 1)); + picked = (ULL(1) << (destBits - 1)); else picked = 0; } @@ -480,7 +480,7 @@ let {{ if (signBit) { if (overflow != mask(destBits - srcBits + 1)) { if (ext & 0x1) - picked = (1 << (destBits - 1)); + picked = (ULL(1) << (destBits - 1)); else picked = 0; } @@ -642,10 +642,10 @@ let {{ int loIndex = (i + 0) * sizeBits; uint64_t arg1Bits = bits(FpSrcReg1.uqw, hiIndex, loIndex); int64_t arg1 = arg1Bits | - (0 - (arg1Bits & (1 << (sizeBits - 1)))); + (0 - (arg1Bits & (ULL(1) << (sizeBits - 1)))); uint64_t arg2Bits = bits(FpSrcReg2.uqw, hiIndex, loIndex); int64_t arg2 = arg2Bits | - (0 - (arg2Bits & (1 << (sizeBits - 1)))); + (0 - (arg2Bits & (ULL(1) << (sizeBits - 1)))); uint64_t resBits; if (ext & 0x2) { @@ -680,10 +680,10 @@ let {{ int loIndex = (i + 0) * sizeBits; uint64_t arg1Bits = bits(FpSrcReg1.uqw, hiIndex, loIndex); int64_t arg1 = arg1Bits | - (0 - (arg1Bits & (1 << (sizeBits - 1)))); + (0 - (arg1Bits & (ULL(1) << (sizeBits - 1)))); uint64_t arg2Bits = bits(FpSrcReg2.uqw, hiIndex, loIndex); int64_t arg2 = arg2Bits | - (0 - (arg2Bits & (1 << (sizeBits - 1)))); + (0 - (arg2Bits & (ULL(1) << (sizeBits - 1)))); uint64_t resBits; if (ext & 0x2) { @@ -957,7 +957,7 @@ let {{ int resSign = bits(resBits, sizeBits - 1); if ((arg1Sign == arg2Sign) && (arg1Sign != resSign)) { if (resSign == 0) - resBits = (1 << (sizeBits - 1)); + resBits = (ULL(1) << (sizeBits - 1)); else resBits = mask(sizeBits - 1); } @@ -996,7 +996,7 @@ let {{ int resSign = bits(resBits, sizeBits - 1); if ((arg1Sign == arg2Sign) && (arg1Sign != resSign)) { if (resSign == 0) - resBits = (1 << (sizeBits - 1)); + resBits = (ULL(1) << (sizeBits - 1)); else resBits = mask(sizeBits - 1); } @@ -1032,16 +1032,16 @@ let {{ if (ext & 0x2) { int64_t arg1 = arg1Bits | - (0 - (arg1Bits & (1 << (srcBits - 1)))); + (0 - (arg1Bits & (ULL(1) << (srcBits - 1)))); int64_t arg2 = arg2Bits | - (0 - (arg2Bits & (1 << (srcBits - 1)))); + (0 - (arg2Bits & (ULL(1) << (srcBits - 1)))); resBits = (uint64_t)(arg1 * arg2); } else { resBits = arg1Bits * arg2Bits; } if (ext & 0x4) - resBits += (1 << (destBits - 1)); + resBits += (ULL(1) << (destBits - 1)); if (ext & 0x8) resBits >>= destBits; @@ -1142,7 +1142,7 @@ let {{ } else { resBits = (arg1Bits >> shiftAmt); resBits = resBits | - (0 - (resBits & (1 << (sizeBits - 1 - shiftAmt)))); + (0 - (resBits & (ULL(1) << (sizeBits - 1 - shiftAmt)))); } result = insertBits(result, hiIndex, loIndex, resBits); @@ -1237,7 +1237,7 @@ let {{ } if (destSize == 4) { - argBits = (uint32_t)(float)arg; + argBits = (uint32_t)arg; } else { argBits = (uint64_t)arg; } @@ -1289,7 +1289,8 @@ let {{ int srcHiIndex = srcStart + (i + 1) * srcSizeBits - 1; int srcLoIndex = srcStart + (i + 0) * srcSizeBits; uint64_t argBits = bits(FpSrcReg1.uqw, srcHiIndex, srcLoIndex); - int64_t sArg = argBits | (0 - (argBits & (1 << srcHiIndex))); + + int64_t sArg = argBits | (0 - (argBits & (ULL(1) << srcHiIndex))); double arg = sArg; if (destSize == 4) { @@ -1400,10 +1401,10 @@ let {{ int loIndex = (i + 0) * sizeBits; uint64_t arg1Bits = bits(FpSrcReg1.uqw, hiIndex, loIndex); int64_t arg1 = arg1Bits | - (0 - (arg1Bits & (1 << (sizeBits - 1)))); + (0 - (arg1Bits & (ULL(1) << (sizeBits - 1)))); uint64_t arg2Bits = bits(FpSrcReg2.uqw, hiIndex, loIndex); int64_t arg2 = arg2Bits | - (0 - (arg2Bits & (1 << (sizeBits - 1)))); + (0 - (arg2Bits & (ULL(1) << (sizeBits - 1)))); uint64_t resBits = 0; if (((ext & 0x2) == 0 && arg1 == arg2) || diff --git a/src/arch/x86/isa/microops/regop.isa b/src/arch/x86/isa/microops/regop.isa index a4cb6f4cc..0b1f9a96a 100644 --- a/src/arch/x86/isa/microops/regop.isa +++ b/src/arch/x86/isa/microops/regop.isa @@ -149,12 +149,12 @@ def template MicroRegOpImmDeclare {{ %(class_name)s(ExtMachInst _machInst, const char * instMnem, bool isMicro, bool isDelayed, bool isFirst, bool isLast, - InstRegIndex _src1, uint16_t _imm8, InstRegIndex _dest, + InstRegIndex _src1, uint8_t _imm8, InstRegIndex _dest, uint8_t _dataSize, uint16_t _ext); %(class_name)s(ExtMachInst _machInst, const char * instMnem, - InstRegIndex _src1, uint16_t _imm8, InstRegIndex _dest, + InstRegIndex _src1, uint8_t _imm8, InstRegIndex _dest, uint8_t _dataSize, uint16_t _ext); %(BasicExecDeclare)s @@ -203,7 +203,7 @@ def template MicroRegOpImmConstructor {{ inline %(class_name)s::%(class_name)s( ExtMachInst machInst, const char * instMnem, - InstRegIndex _src1, uint16_t _imm8, InstRegIndex _dest, + InstRegIndex _src1, uint8_t _imm8, InstRegIndex _dest, uint8_t _dataSize, uint16_t _ext) : %(base_class)s(machInst, "%(mnemonic)s", instMnem, false, false, false, false, @@ -216,7 +216,7 @@ def template MicroRegOpImmConstructor {{ inline %(class_name)s::%(class_name)s( ExtMachInst machInst, const char * instMnem, bool isMicro, bool isDelayed, bool isFirst, bool isLast, - InstRegIndex _src1, uint16_t _imm8, InstRegIndex _dest, + InstRegIndex _src1, uint8_t _imm8, InstRegIndex _dest, uint8_t _dataSize, uint16_t _ext) : %(base_class)s(machInst, "%(mnemonic)s", instMnem, isMicro, isDelayed, isFirst, isLast, @@ -324,11 +324,12 @@ let {{ matcher.sub(src2_name, flag_code), matcher.sub(src2_name, cond_check), matcher.sub(src2_name, else_code)) + imm_name = "%simm8" % match.group("prefix") self.buildCppClasses(name + "i", Name, suffix + "Imm", - matcher.sub("imm8", code), - matcher.sub("imm8", flag_code), - matcher.sub("imm8", cond_check), - matcher.sub("imm8", else_code)) + matcher.sub(imm_name, code), + matcher.sub(imm_name, flag_code), + matcher.sub(imm_name, cond_check), + matcher.sub(imm_name, else_code)) return # If there's something optional to do with flags, generate @@ -353,13 +354,16 @@ let {{ matcher = re.compile("(?<!\w)spsrc2(?!\w)") if matcher.search(allCode): code = "int64_t spsrc2 = signedPick(SrcReg2, 1, dataSize);" + code + matcher = re.compile("(?<!\w)simm8(?!\w)") + if matcher.search(allCode): + code = "int8_t simm8 = imm8;" + code base = "X86ISA::RegOp" # If imm8 shows up in the code, use the immediate templates, if # not, hopefully the register ones will be correct. templates = regTemplates - matcher = re.compile("(?<!\w)imm8(?!\w)") + matcher = re.compile("(?<!\w)s?imm8(?!\w)") if matcher.search(allCode): base += "Imm" templates = immTemplates @@ -521,7 +525,7 @@ let {{ code = ''' ProdLow = psrc1 * op2; int halfSize = (dataSize * 8) / 2; - uint64_t shifter = (1ULL << halfSize); + uint64_t shifter = (ULL(1) << halfSize); uint64_t hiResult; uint64_t psrc1_h = psrc1 / shifter; uint64_t psrc1_l = psrc1 & mask(halfSize); @@ -549,7 +553,7 @@ let {{ code = ''' ProdLow = psrc1 * op2; int halfSize = (dataSize * 8) / 2; - uint64_t shifter = (1ULL << halfSize); + uint64_t shifter = (ULL(1) << halfSize); uint64_t psrc1_h = psrc1 / shifter; uint64_t psrc1_l = psrc1 & mask(halfSize); uint64_t psrc2_h = (op2 / shifter) & mask(halfSize); diff --git a/src/arch/x86/linux/linux.hh b/src/arch/x86/linux/linux.hh index c2941c769..238b5e683 100644 --- a/src/arch/x86/linux/linux.hh +++ b/src/arch/x86/linux/linux.hh @@ -111,6 +111,22 @@ class X86Linux64 : public Linux uint64_t iov_base; // void * uint64_t iov_len; // size_t } tgt_iovec; + + typedef struct { + int64_t uptime; /* Seconds since boot */ + uint64_t loads[3]; /* 1, 5, and 15 minute load averages */ + uint64_t totalram; /* Total usable main memory size */ + uint64_t freeram; /* Available memory size */ + uint64_t sharedram; /* Amount of shared memory */ + uint64_t bufferram; /* Memory used by buffers */ + uint64_t totalswap; /* Total swap space size */ + uint64_t freeswap; /* swap space still available */ + uint16_t procs; /* Number of current processes */ + uint64_t totalhigh; /* Total high memory size */ + uint64_t freehigh; /* Available high memory size */ + uint64_t mem_unit; /* Memory unit size in bytes */ + } tgt_sysinfo; + }; class X86Linux32 : public Linux @@ -126,8 +142,8 @@ class X86Linux32 : public Linux uint32_t st_uid; uint32_t st_gid; uint64_t st_rdev; - int64_t st_size; uint8_t __pad3[4]; + int64_t st_size; uint32_t st_blksize; uint64_t st_blocks; uint32_t st_atimeX; @@ -137,7 +153,7 @@ class X86Linux32 : public Linux uint32_t st_ctimeX; uint32_t st_ctime_nsec; uint64_t st_ino; - } tgt_stat64; + } __attribute__((__packed__)) tgt_stat64; static OpenFlagTransTable openFlagTable[]; @@ -160,6 +176,23 @@ class X86Linux32 : public Linux static const int NUM_OPEN_FLAGS; static const unsigned TGT_MAP_ANONYMOUS = 0x20; + + typedef struct { + int32_t uptime; /* Seconds since boot */ + uint32_t loads[3]; /* 1, 5, and 15 minute load averages */ + uint32_t totalram; /* Total usable main memory size */ + uint32_t freeram; /* Available memory size */ + uint32_t sharedram; /* Amount of shared memory */ + uint32_t bufferram; /* Memory used by buffers */ + uint32_t totalswap; /* Total swap space size */ + uint32_t freeswap; /* swap space still available */ + uint16_t procs; /* Number of current processes */ + uint32_t totalhigh; /* Total high memory size */ + uint32_t freehigh; /* Available high memory size */ + uint32_t mem_unit; /* Memory unit size in bytes */ + } tgt_sysinfo; + + static bool mmapGrowsDown() { return true; } }; #endif diff --git a/src/arch/x86/linux/syscalls.cc b/src/arch/x86/linux/syscalls.cc index 4d7bca95c..6a659108f 100644 --- a/src/arch/x86/linux/syscalls.cc +++ b/src/arch/x86/linux/syscalls.cc @@ -68,7 +68,8 @@ static SyscallReturn unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, 0)); + int index = 0; + TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index)); strcpy(name->sysname, "Linux"); strcpy(name->nodename, "m5.eecs.umich.edu"); @@ -94,8 +95,9 @@ archPrctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process, }; //First argument is the code, second is the address - int code = process->getSyscallArg(tc, 0); - uint64_t addr = process->getSyscallArg(tc, 1); + int index = 0; + int code = process->getSyscallArg(tc, index); + uint64_t addr = process->getSyscallArg(tc, index); uint64_t fsBase, gsBase; TranslatingPort *p = tc->getMemPort(); switch(code) @@ -159,7 +161,8 @@ setThreadArea32Func(SyscallDesc *desc, int callnum, assert((maxTLSEntry + 1) * sizeof(uint64_t) <= x86lp->gdtSize()); - TypedBufferArg<UserDesc32> userDesc(process->getSyscallArg(tc, 0)); + int argIndex = 0; + TypedBufferArg<UserDesc32> userDesc(process->getSyscallArg(tc, argIndex)); TypedBufferArg<uint64_t> gdt(x86lp->gdtStart() + minTLSEntry * sizeof(uint64_t), numTLSEntries * sizeof(uint64_t)); @@ -232,7 +235,7 @@ SyscallDesc X86_64LinuxProcess::syscallDescs[] = { /* 1 */ SyscallDesc("write", writeFunc), /* 2 */ SyscallDesc("open", openFunc<X86Linux64>), /* 3 */ SyscallDesc("close", closeFunc), - /* 4 */ SyscallDesc("stat", unimplementedFunc), + /* 4 */ SyscallDesc("stat", stat64Func<X86Linux64>), /* 5 */ SyscallDesc("fstat", fstat64Func<X86Linux64>), /* 6 */ SyscallDesc("lstat", unimplementedFunc), /* 7 */ SyscallDesc("poll", unimplementedFunc), @@ -241,7 +244,7 @@ SyscallDesc X86_64LinuxProcess::syscallDescs[] = { /* 10 */ SyscallDesc("mprotect", unimplementedFunc), /* 11 */ SyscallDesc("munmap", munmapFunc), /* 12 */ SyscallDesc("brk", brkFunc), - /* 13 */ SyscallDesc("rt_sigaction", unimplementedFunc), + /* 13 */ SyscallDesc("rt_sigaction", ignoreFunc), /* 14 */ SyscallDesc("rt_sigprocmask", unimplementedFunc), /* 15 */ SyscallDesc("rt_sigreturn", unimplementedFunc), /* 16 */ SyscallDesc("ioctl", unimplementedFunc), @@ -304,8 +307,8 @@ SyscallDesc X86_64LinuxProcess::syscallDescs[] = { /* 73 */ SyscallDesc("flock", unimplementedFunc), /* 74 */ SyscallDesc("fsync", unimplementedFunc), /* 75 */ SyscallDesc("fdatasync", unimplementedFunc), - /* 76 */ SyscallDesc("truncate", unimplementedFunc), - /* 77 */ SyscallDesc("ftruncate", unimplementedFunc), + /* 76 */ SyscallDesc("truncate", truncateFunc), + /* 77 */ SyscallDesc("ftruncate", ftruncateFunc), /* 78 */ SyscallDesc("getdents", unimplementedFunc), /* 79 */ SyscallDesc("getcwd", unimplementedFunc), /* 80 */ SyscallDesc("chdir", unimplementedFunc), @@ -327,7 +330,7 @@ SyscallDesc X86_64LinuxProcess::syscallDescs[] = { /* 96 */ SyscallDesc("gettimeofday", unimplementedFunc), /* 97 */ SyscallDesc("getrlimit", unimplementedFunc), /* 98 */ SyscallDesc("getrusage", unimplementedFunc), - /* 99 */ SyscallDesc("sysinfo", unimplementedFunc), + /* 99 */ SyscallDesc("sysinfo", sysinfoFunc<X86Linux64>), /* 100 */ SyscallDesc("times", unimplementedFunc), /* 101 */ SyscallDesc("ptrace", unimplementedFunc), /* 102 */ SyscallDesc("getuid", getuidFunc), @@ -429,7 +432,7 @@ SyscallDesc X86_64LinuxProcess::syscallDescs[] = { /* 198 */ SyscallDesc("lremovexattr", unimplementedFunc), /* 199 */ SyscallDesc("fremovexattr", unimplementedFunc), /* 200 */ SyscallDesc("tkill", unimplementedFunc), - /* 201 */ SyscallDesc("time", unimplementedFunc), + /* 201 */ SyscallDesc("time", timeFunc<X86Linux64>), /* 202 */ SyscallDesc("futex", ignoreFunc), /* 203 */ SyscallDesc("sched_setaffinity", unimplementedFunc), /* 204 */ SyscallDesc("sched_getaffinity", unimplementedFunc), @@ -508,19 +511,19 @@ const int X86_64LinuxProcess::numSyscalls = SyscallDesc I386LinuxProcess::syscallDescs[] = { /* 0 */ SyscallDesc("restart_syscall", unimplementedFunc), - /* 1 */ SyscallDesc("exit", unimplementedFunc), + /* 1 */ SyscallDesc("exit", exitFunc), /* 2 */ SyscallDesc("fork", unimplementedFunc), - /* 3 */ SyscallDesc("read", unimplementedFunc), + /* 3 */ SyscallDesc("read", readFunc), /* 4 */ SyscallDesc("write", writeFunc), - /* 5 */ SyscallDesc("open", openFunc<X86Linux64>), - /* 6 */ SyscallDesc("close", unimplementedFunc), + /* 5 */ SyscallDesc("open", openFunc<X86Linux32>), + /* 6 */ SyscallDesc("close", closeFunc), /* 7 */ SyscallDesc("waitpid", unimplementedFunc), /* 8 */ SyscallDesc("creat", unimplementedFunc), /* 9 */ SyscallDesc("link", unimplementedFunc), /* 10 */ SyscallDesc("unlink", unimplementedFunc), /* 11 */ SyscallDesc("execve", unimplementedFunc), /* 12 */ SyscallDesc("chdir", unimplementedFunc), - /* 13 */ SyscallDesc("time", unimplementedFunc), + /* 13 */ SyscallDesc("time", timeFunc<X86Linux32>), /* 14 */ SyscallDesc("mknod", unimplementedFunc), /* 15 */ SyscallDesc("chmod", unimplementedFunc), /* 16 */ SyscallDesc("lchown", unimplementedFunc), @@ -531,7 +534,7 @@ SyscallDesc I386LinuxProcess::syscallDescs[] = { /* 21 */ SyscallDesc("mount", unimplementedFunc), /* 22 */ SyscallDesc("umount", unimplementedFunc), /* 23 */ SyscallDesc("setuid", unimplementedFunc), - /* 24 */ SyscallDesc("getuid", unimplementedFunc), + /* 24 */ SyscallDesc("getuid", getuidFunc), /* 25 */ SyscallDesc("stime", unimplementedFunc), /* 26 */ SyscallDesc("ptrace", unimplementedFunc), /* 27 */ SyscallDesc("alarm", unimplementedFunc), @@ -554,10 +557,10 @@ SyscallDesc I386LinuxProcess::syscallDescs[] = { /* 44 */ SyscallDesc("prof", unimplementedFunc), /* 45 */ SyscallDesc("brk", brkFunc), /* 46 */ SyscallDesc("setgid", unimplementedFunc), - /* 47 */ SyscallDesc("getgid", unimplementedFunc), + /* 47 */ SyscallDesc("getgid", getgidFunc), /* 48 */ SyscallDesc("signal", unimplementedFunc), - /* 49 */ SyscallDesc("geteuid", unimplementedFunc), - /* 50 */ SyscallDesc("getegid", unimplementedFunc), + /* 49 */ SyscallDesc("geteuid", geteuidFunc), + /* 50 */ SyscallDesc("getegid", getegidFunc), /* 51 */ SyscallDesc("acct", unimplementedFunc), /* 52 */ SyscallDesc("umount2", unimplementedFunc), /* 53 */ SyscallDesc("lock", unimplementedFunc), @@ -598,9 +601,9 @@ SyscallDesc I386LinuxProcess::syscallDescs[] = { /* 88 */ SyscallDesc("reboot", unimplementedFunc), /* 89 */ SyscallDesc("readdir", unimplementedFunc), /* 90 */ SyscallDesc("mmap", unimplementedFunc), - /* 91 */ SyscallDesc("munmap", unimplementedFunc), - /* 92 */ SyscallDesc("truncate", unimplementedFunc), - /* 93 */ SyscallDesc("ftruncate", unimplementedFunc), + /* 91 */ SyscallDesc("munmap", munmapFunc), + /* 92 */ SyscallDesc("truncate", truncateFunc), + /* 93 */ SyscallDesc("ftruncate", ftruncateFunc), /* 94 */ SyscallDesc("fchmod", unimplementedFunc), /* 95 */ SyscallDesc("fchown", unimplementedFunc), /* 96 */ SyscallDesc("getpriority", unimplementedFunc), @@ -623,7 +626,7 @@ SyscallDesc I386LinuxProcess::syscallDescs[] = { /* 113 */ SyscallDesc("vm86old", unimplementedFunc), /* 114 */ SyscallDesc("wait4", unimplementedFunc), /* 115 */ SyscallDesc("swapoff", unimplementedFunc), - /* 116 */ SyscallDesc("sysinfo", unimplementedFunc), + /* 116 */ SyscallDesc("sysinfo", sysinfoFunc<X86Linux32>), /* 117 */ SyscallDesc("ipc", unimplementedFunc), /* 118 */ SyscallDesc("fsync", unimplementedFunc), /* 119 */ SyscallDesc("sigreturn", unimplementedFunc), @@ -681,7 +684,7 @@ SyscallDesc I386LinuxProcess::syscallDescs[] = { /* 171 */ SyscallDesc("getresgid", unimplementedFunc), /* 172 */ SyscallDesc("prctl", unimplementedFunc), /* 173 */ SyscallDesc("rt_sigreturn", unimplementedFunc), - /* 174 */ SyscallDesc("rt_sigaction", unimplementedFunc), + /* 174 */ SyscallDesc("rt_sigaction", ignoreFunc), /* 175 */ SyscallDesc("rt_sigprocmask", unimplementedFunc), /* 176 */ SyscallDesc("rt_sigpending", unimplementedFunc), /* 177 */ SyscallDesc("rt_sigtimedwait", unimplementedFunc), @@ -700,16 +703,16 @@ SyscallDesc I386LinuxProcess::syscallDescs[] = { /* 190 */ SyscallDesc("vfork", unimplementedFunc), /* 191 */ SyscallDesc("ugetrlimit", unimplementedFunc), /* 192 */ SyscallDesc("mmap2", mmapFunc<X86Linux32>), - /* 193 */ SyscallDesc("truncate64", unimplementedFunc), - /* 194 */ SyscallDesc("ftruncate64", unimplementedFunc), - /* 195 */ SyscallDesc("stat64", unimplementedFunc), + /* 193 */ SyscallDesc("truncate64", truncate64Func), + /* 194 */ SyscallDesc("ftruncate64", ftruncate64Func), + /* 195 */ SyscallDesc("stat64", stat64Func<X86Linux32>), /* 196 */ SyscallDesc("lstat64", unimplementedFunc), /* 197 */ SyscallDesc("fstat64", fstat64Func<X86Linux32>), /* 198 */ SyscallDesc("lchown32", unimplementedFunc), - /* 199 */ SyscallDesc("getuid32", unimplementedFunc), - /* 200 */ SyscallDesc("getgid32", unimplementedFunc), - /* 201 */ SyscallDesc("geteuid32", unimplementedFunc), - /* 202 */ SyscallDesc("getegid32", unimplementedFunc), + /* 199 */ SyscallDesc("getuid32", getuidFunc), + /* 200 */ SyscallDesc("getgid32", getgidFunc), + /* 201 */ SyscallDesc("geteuid32", geteuidFunc), + /* 202 */ SyscallDesc("getegid32", getegidFunc), /* 203 */ SyscallDesc("setreuid32", unimplementedFunc), /* 204 */ SyscallDesc("setregid32", unimplementedFunc), /* 205 */ SyscallDesc("getgroups32", unimplementedFunc), diff --git a/src/arch/x86/predecoder_tables.cc b/src/arch/x86/predecoder_tables.cc index 5f2b5c421..e8c838dfb 100644 --- a/src/arch/x86/predecoder_tables.cc +++ b/src/arch/x86/predecoder_tables.cc @@ -191,7 +191,7 @@ namespace X86ISA /* 7 */ BY, BY, BY, BY, BY, BY, BY, BY, BY, BY, BY, BY, BY, BY, BY, BY, /* 8 */ BY, ZW, BY, BY, 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , /* 9 */ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , -/* A */ BY, VW, BY, VW, 0 , 0 , 0 , 0 , BY, ZW, 0 , 0 , 0 , 0 , 0 , 0 , +/* A */ VW, VW, VW, VW, 0 , 0 , 0 , 0 , BY, ZW, 0 , 0 , 0 , 0 , 0 , 0 , /* B */ BY, BY, BY, BY, BY, BY, BY, BY, VW, VW, VW, VW, VW, VW, VW, VW, /* C */ BY, BY, WO, 0 , 0 , 0 , BY, ZW, EN, 0 , WO, 0 , 0 , BY, 0 , 0 , /* D */ 0 , 0 , 0 , 0 , BY, BY, 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , diff --git a/src/arch/x86/process.cc b/src/arch/x86/process.cc index 4082e568c..42ca7b27d 100644 --- a/src/arch/x86/process.cc +++ b/src/arch/x86/process.cc @@ -139,6 +139,12 @@ X86_64LiveProcess::X86_64LiveProcess(LiveProcessParams *params, int _numSyscallDescs) : X86LiveProcess(params, objFile, _syscallDescs, _numSyscallDescs) { + + vsyscallPage.base = 0xffffffffff600000ULL; + vsyscallPage.size = VMPageSize; + vsyscallPage.vtimeOffset = 0x400; + vsyscallPage.vgettimeofdayOffset = 0x410; + // Set up stack. On X86_64 Linux, stack goes from the top of memory // downward, less the hole for the kernel address space plus one page // for undertermined purposes. @@ -169,7 +175,7 @@ I386LiveProcess::I386LiveProcess(LiveProcessParams *params, int _numSyscallDescs) : X86LiveProcess(params, objFile, _syscallDescs, _numSyscallDescs) { - _gdtStart = 0x100000000; + _gdtStart = ULL(0x100000000); _gdtSize = VMPageSize; vsyscallPage.base = 0xffffe000ULL; @@ -184,7 +190,7 @@ I386LiveProcess::I386LiveProcess(LiveProcessParams *params, // Set up region for mmaps. This was determined empirically and may not // always be correct. - mmap_start = mmap_end = (Addr)0xf7ffd000ULL; + mmap_start = mmap_end = (Addr)0xf7ffe000ULL; } SyscallDesc* @@ -205,6 +211,24 @@ X86_64LiveProcess::startup() argsInit(sizeof(uint64_t), VMPageSize); + // Set up the vsyscall page for this process. + pTable->allocate(vsyscallPage.base, vsyscallPage.size); + uint8_t vtimeBlob[] = { + 0x48,0xc7,0xc0,0xc9,0x00,0x00,0x00, // mov $0xc9,%rax + 0x0f,0x05, // syscall + 0xc3 // retq + }; + initVirtMem->writeBlob(vsyscallPage.base + vsyscallPage.vtimeOffset, + vtimeBlob, sizeof(vtimeBlob)); + + uint8_t vgettimeofdayBlob[] = { + 0x48,0xc7,0xc0,0x60,0x00,0x00,0x00, // mov $0x60,%rax + 0x0f,0x05, // syscall + 0xc3 // retq + }; + initVirtMem->writeBlob(vsyscallPage.base + vsyscallPage.vgettimeofdayOffset, + vgettimeofdayBlob, sizeof(vgettimeofdayBlob)); + for (int i = 0; i < contextIds.size(); i++) { ThreadContext * tc = system->getThreadContext(contextIds[i]); @@ -698,10 +722,10 @@ X86LiveProcess::setSyscallReturn(ThreadContext *tc, SyscallReturn return_value) } X86ISA::IntReg -X86_64LiveProcess::getSyscallArg(ThreadContext *tc, int i) +X86_64LiveProcess::getSyscallArg(ThreadContext *tc, int &i) { assert(i < NumArgumentRegs); - return tc->readIntReg(ArgumentReg[i]); + return tc->readIntReg(ArgumentReg[i++]); } void @@ -712,10 +736,21 @@ X86_64LiveProcess::setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val) } X86ISA::IntReg -I386LiveProcess::getSyscallArg(ThreadContext *tc, int i) +I386LiveProcess::getSyscallArg(ThreadContext *tc, int &i) { assert(i < NumArgumentRegs32); - return tc->readIntReg(ArgumentReg32[i]); + return tc->readIntReg(ArgumentReg32[i++]); +} + +X86ISA::IntReg +I386LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width) +{ + assert(width == 32 || width == 64); + assert(i < NumArgumentRegs); + uint64_t retVal = tc->readIntReg(ArgumentReg32[i++]) & mask(32); + if (width == 64) + retVal |= ((uint64_t)tc->readIntReg(ArgumentReg[i++]) << 32); + return retVal; } void diff --git a/src/arch/x86/process.hh b/src/arch/x86/process.hh index cd6d99e66..3ad2abe08 100644 --- a/src/arch/x86/process.hh +++ b/src/arch/x86/process.hh @@ -101,11 +101,21 @@ namespace X86ISA X86_64LiveProcess(LiveProcessParams *params, ObjectFile *objFile, SyscallDesc *_syscallDescs, int _numSyscallDescs); + class VSyscallPage + { + public: + Addr base; + Addr size; + Addr vtimeOffset; + Addr vgettimeofdayOffset; + }; + VSyscallPage vsyscallPage; + public: void argsInit(int intSize, int pageSize); void startup(); - X86ISA::IntReg getSyscallArg(ThreadContext *tc, int i); + X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); }; @@ -130,7 +140,8 @@ namespace X86ISA void startup(); void syscall(int64_t callnum, ThreadContext *tc); - X86ISA::IntReg getSyscallArg(ThreadContext *tc, int i); + X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); + X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); }; } diff --git a/src/arch/x86/system.cc b/src/arch/x86/system.cc index 1594cc375..31183f2f9 100644 --- a/src/arch/x86/system.cc +++ b/src/arch/x86/system.cc @@ -211,7 +211,7 @@ X86System::startup() numGDTEntries++; - SegSelector ds; + SegSelector ds = 0; ds.si = numGDTEntries - 1; tc->setMiscReg(MISCREG_DS, (MiscReg)ds); diff --git a/src/arch/x86/tlb.cc b/src/arch/x86/tlb.cc index 5280b9ba8..d7959da2c 100644 --- a/src/arch/x86/tlb.cc +++ b/src/arch/x86/tlb.cc @@ -632,12 +632,26 @@ TLB::translate(RequestPtr req, ThreadContext *tc, Translation *translation, Process *p = tc->getProcessPtr(); TlbEntry newEntry; bool success = p->pTable->lookup(vaddr, newEntry); - if(!success && mode != Execute) { + if (!success && mode != Execute) { p->checkAndAllocNextPage(vaddr); success = p->pTable->lookup(vaddr, newEntry); } - if(!success) { - panic("Tried to execute unmapped address %#x.\n", vaddr); + if (!success) { + if (req->isPrefetch()) { + return new PageFault(vaddr, true, mode, true, false); + } else { + const char *modeStr = ""; + if (mode == Execute) + modeStr = "execute"; + else if (mode == Read) + modeStr = "read"; + else if (mode == Write) + modeStr = "write"; + else + modeStr = "?"; + panic("Tried to %s unmapped address %#x.\n", + modeStr, vaddr); + } } else { Addr alignedVaddr = p->pTable->pageAlign(vaddr); DPRINTF(TLB, "Mapping %#x to %#x\n", alignedVaddr, |