63fdabf191
pretty close to compiling w/ suns compiler briefly: add dummy return after panic()/fatal() split out flags by compiler vendor include cstring and cmath where appropriate use std namespace for string ops SConstruct: Add code to detect compiler and choose cflags based on detected compiler Fix zlib check to work with suncc src/SConscript: split out flags by compiler vendor src/arch/sparc/isa/decoder.isa: use correct namespace for sqrt src/arch/sparc/isa/formats/basic.isa: add dummy return around panic src/arch/sparc/isa/formats/integerop.isa: use correct namespace for stringops src/arch/sparc/isa/includes.isa: include cstring and cmath where appropriate src/arch/sparc/isa_traits.hh: remove dangling comma src/arch/sparc/system.cc: dummy return to make sun cc front end happy src/arch/sparc/tlb.cc: src/base/compression/lzss_compression.cc: use std namespace for string ops src/arch/sparc/utility.hh: no reason to say something is unsigned unsigned int src/base/compression/null_compression.hh: dummy returns to for suncc front end src/base/cprintf.hh: use standard variadic argument syntax instead of gnuc specefic renaming src/base/hashmap.hh: don't need to define hash for suncc src/base/hostinfo.cc: need stdio.h for sprintf src/base/loader/object_file.cc: munmap is in std namespace not null src/base/misc.hh: use M5 generic noreturn macros use standard variadic macro __VA_ARGS__ src/base/pollevent.cc: we need file.h for file flags src/base/random.cc: mess with include files to make suncc happy src/base/remote_gdb.cc: malloc memory for function instead of having a non-constant in an array size src/base/statistics.hh: use std namespace for floor src/base/stats/text.cc: include math.h for rint (cmath won't work) src/base/time.cc: use suncc version of ctime_r src/base/time.hh: change macro to work with both gcc and suncc src/base/timebuf.hh: include cstring from memset and use std:: src/base/trace.hh: change variadic macros to be normal format src/cpu/SConscript: add dummy returns where appropriate src/cpu/activity.cc: include cstring for memset src/cpu/exetrace.hh: include cstring fro memcpy src/cpu/simple/base.hh: add dummy return for panic src/dev/baddev.cc: src/dev/pciconfigall.cc: src/dev/platform.cc: src/dev/sparc/t1000.cc: add dummy return where appropriate src/dev/ide_atareg.h: make define work for both gnuc and suncc src/dev/io_device.hh: add dummy returns where approirate src/dev/pcidev.hh: src/mem/cache/cache_impl.hh: src/mem/cache/miss/blocking_buffer.cc: src/mem/cache/tags/lru.hh: src/mem/cache/tags/split.hh: src/mem/cache/tags/split_lifo.hh: src/mem/cache/tags/split_lru.hh: src/mem/dram.cc: src/mem/packet.cc: src/mem/port.cc: include cstring for string ops src/dev/sparc/mm_disk.cc: add dummy return where appropriate include cstring for string ops src/mem/cache/miss/blocking_buffer.hh: src/mem/port.hh: Add dummy return where appropriate src/mem/cache/tags/iic.cc: cast hastSets to double for log() call src/mem/physical.cc: cast pmemAddr to char* for munmap src/sim/byteswap.hh: make define work for suncc and gnuc --HG-- extra : convert_revision : ef8a1f1064e43b6c39838a85c01aee4f795497bd
257 lines
8.8 KiB
C++
257 lines
8.8 KiB
C++
/*
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* Copyright (c) 2006 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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* Steve Reinhardt
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*/
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/**
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* @file
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* Definition of the Packet Class, a packet is a transaction occuring
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* between a single level of the memory heirarchy (ie L1->L2).
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*/
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#include <iostream>
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#include <cstring>
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#include "base/misc.hh"
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#include "base/trace.hh"
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#include "mem/packet.hh"
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static const std::string ReadReqString("ReadReq");
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static const std::string WriteReqString("WriteReq");
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static const std::string WriteReqNoAckString("WriteReqNoAck|Writeback");
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static const std::string ReadRespString("ReadResp");
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static const std::string WriteRespString("WriteResp");
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static const std::string SoftPFReqString("SoftPFReq");
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static const std::string SoftPFRespString("SoftPFResp");
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static const std::string HardPFReqString("HardPFReq");
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static const std::string HardPFRespString("HardPFResp");
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static const std::string InvalidateReqString("InvalidateReq");
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static const std::string WriteInvalidateReqString("WriteInvalidateReq");
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static const std::string WriteInvalidateRespString("WriteInvalidateResp");
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static const std::string UpgradeReqString("UpgradeReq");
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static const std::string ReadExReqString("ReadExReq");
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static const std::string ReadExRespString("ReadExResp");
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static const std::string OtherCmdString("<other>");
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const std::string &
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Packet::cmdString() const
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{
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switch (cmd) {
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case ReadReq: return ReadReqString;
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case WriteReq: return WriteReqString;
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case WriteReqNoAck: return WriteReqNoAckString;
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case ReadResp: return ReadRespString;
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case WriteResp: return WriteRespString;
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case SoftPFReq: return SoftPFReqString;
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case SoftPFResp: return SoftPFRespString;
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case HardPFReq: return HardPFReqString;
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case HardPFResp: return HardPFRespString;
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case InvalidateReq: return InvalidateReqString;
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case WriteInvalidateReq:return WriteInvalidateReqString;
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case WriteInvalidateResp:return WriteInvalidateRespString;
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case UpgradeReq: return UpgradeReqString;
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case ReadExReq: return ReadExReqString;
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case ReadExResp: return ReadExRespString;
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default: return OtherCmdString;
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}
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}
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const std::string &
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Packet::cmdIdxToString(Packet::Command idx)
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{
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switch (idx) {
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case ReadReq: return ReadReqString;
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case WriteReq: return WriteReqString;
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case WriteReqNoAck: return WriteReqNoAckString;
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case ReadResp: return ReadRespString;
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case WriteResp: return WriteRespString;
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case SoftPFReq: return SoftPFReqString;
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case SoftPFResp: return SoftPFRespString;
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case HardPFReq: return HardPFReqString;
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case HardPFResp: return HardPFRespString;
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case InvalidateReq: return InvalidateReqString;
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case WriteInvalidateReq:return WriteInvalidateReqString;
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case WriteInvalidateResp:return WriteInvalidateRespString;
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case UpgradeReq: return UpgradeReqString;
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case ReadExReq: return ReadExReqString;
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case ReadExResp: return ReadExRespString;
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default: return OtherCmdString;
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}
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}
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/** delete the data pointed to in the data pointer. Ok to call to matter how
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* data was allocted. */
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void
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Packet::deleteData()
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{
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assert(staticData || dynamicData);
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if (staticData)
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return;
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if (arrayData)
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delete [] data;
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else
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delete data;
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}
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/** If there isn't data in the packet, allocate some. */
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void
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Packet::allocate()
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{
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if (data)
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return;
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assert(!staticData);
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dynamicData = true;
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arrayData = true;
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data = new uint8_t[getSize()];
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}
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/** Do the packet modify the same addresses. */
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bool
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Packet::intersect(PacketPtr p)
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{
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Addr s1 = getAddr();
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Addr e1 = getAddr() + getSize() - 1;
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Addr s2 = p->getAddr();
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Addr e2 = p->getAddr() + p->getSize() - 1;
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return !(s1 > e2 || e1 < s2);
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}
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bool
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fixDelayedResponsePacket(PacketPtr func, PacketPtr timing)
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{
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bool result;
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if (timing->isRead() || timing->isWrite()) {
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timing->toggleData();
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result = fixPacket(func, timing);
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timing->toggleData();
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}
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else {
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//Don't toggle if it isn't a read/write response
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result = fixPacket(func, timing);
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}
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return result;
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}
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bool
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fixPacket(PacketPtr func, PacketPtr timing)
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{
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Addr funcStart = func->getAddr();
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Addr funcEnd = func->getAddr() + func->getSize() - 1;
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Addr timingStart = timing->getAddr();
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Addr timingEnd = timing->getAddr() + timing->getSize() - 1;
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assert(!(funcStart > timingEnd || timingStart > funcEnd));
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if (DTRACE(FunctionalAccess)) {
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DebugOut() << func;
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DebugOut() << timing;
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}
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// this packet can't solve our problem, continue on
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if (!timing->hasData())
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return true;
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if (func->isRead()) {
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if (funcStart >= timingStart && funcEnd <= timingEnd) {
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func->allocate();
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std::memcpy(func->getPtr<uint8_t>(), timing->getPtr<uint8_t>() +
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funcStart - timingStart, func->getSize());
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func->result = Packet::Success;
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func->flags |= SATISFIED;
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return false;
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} else {
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// In this case the timing packet only partially satisfies the
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// requset, so we would need more information to make this work.
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// Like bytes valid in the packet or something, so the request could
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// continue and get this bit of possibly newer data along with the
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// older data not written to yet.
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panic("Timing packet only partially satisfies the functional"
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"request. Now what?");
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}
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} else if (func->isWrite()) {
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if (funcStart >= timingStart) {
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std::memcpy(timing->getPtr<uint8_t>() + (funcStart - timingStart),
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func->getPtr<uint8_t>(),
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(std::min(funcEnd, timingEnd) - funcStart) + 1);
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} else { // timingStart > funcStart
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std::memcpy(timing->getPtr<uint8_t>(),
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func->getPtr<uint8_t>() + (timingStart - funcStart),
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(std::min(funcEnd, timingEnd) - timingStart) + 1);
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}
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// we always want to keep going with a write
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return true;
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} else
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panic("Don't know how to handle command type %#x\n",
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func->cmdToIndex());
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}
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std::ostream &
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operator<<(std::ostream &o, const Packet &p)
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{
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o << "[0x";
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o.setf(std::ios_base::hex, std::ios_base::showbase);
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o << p.getAddr();
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o.unsetf(std::ios_base::hex| std::ios_base::showbase);
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o << ":";
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o.setf(std::ios_base::hex, std::ios_base::showbase);
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o << p.getAddr() + p.getSize() - 1 << "] ";
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o.unsetf(std::ios_base::hex| std::ios_base::showbase);
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if (p.result == Packet::Success)
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o << "Successful ";
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if (p.result == Packet::BadAddress)
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o << "BadAddress ";
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if (p.result == Packet::Nacked)
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o << "Nacked ";
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if (p.result == Packet::Unknown)
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o << "Inflight ";
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if (p.isRead())
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o << "Read ";
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if (p.isWrite())
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o << "Read ";
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if (p.isInvalidate())
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o << "Read ";
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if (p.isRequest())
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o << "Request ";
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if (p.isResponse())
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o << "Response ";
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if (p.hasData())
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o << "w/Data ";
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o << std::endl;
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return o;
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}
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