packet.cc revision 8692
12568SN/A/* 28668Sgeoffrey.blake@arm.com * Copyright (c) 2011 ARM Limited 38668Sgeoffrey.blake@arm.com * All rights reserved 48668Sgeoffrey.blake@arm.com * 58668Sgeoffrey.blake@arm.com * The license below extends only to copyright in the software and shall 68668Sgeoffrey.blake@arm.com * not be construed as granting a license to any other intellectual 78668Sgeoffrey.blake@arm.com * property including but not limited to intellectual property relating 88668Sgeoffrey.blake@arm.com * to a hardware implementation of the functionality of the software 98668Sgeoffrey.blake@arm.com * licensed hereunder. You may use the software subject to the license 108668Sgeoffrey.blake@arm.com * terms below provided that you ensure that this notice is replicated 118668Sgeoffrey.blake@arm.com * unmodified and in its entirety in all distributions of the software, 128668Sgeoffrey.blake@arm.com * modified or unmodified, in source code or in binary form. 138668Sgeoffrey.blake@arm.com * 142568SN/A * Copyright (c) 2006 The Regents of The University of Michigan 157636Ssteve.reinhardt@amd.com * Copyright (c) 2010 Advanced Micro Devices, Inc. 162568SN/A * All rights reserved. 172568SN/A * 182568SN/A * Redistribution and use in source and binary forms, with or without 192568SN/A * modification, are permitted provided that the following conditions are 202568SN/A * met: redistributions of source code must retain the above copyright 212568SN/A * notice, this list of conditions and the following disclaimer; 222568SN/A * redistributions in binary form must reproduce the above copyright 232568SN/A * notice, this list of conditions and the following disclaimer in the 242568SN/A * documentation and/or other materials provided with the distribution; 252568SN/A * neither the name of the copyright holders nor the names of its 262568SN/A * contributors may be used to endorse or promote products derived from 272568SN/A * this software without specific prior written permission. 282568SN/A * 292568SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 302568SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 312568SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 322568SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 332568SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 342568SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 352568SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 362568SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 372568SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 382568SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 392568SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 402665Ssaidi@eecs.umich.edu * 412665Ssaidi@eecs.umich.edu * Authors: Ali Saidi 422665Ssaidi@eecs.umich.edu * Steve Reinhardt 432568SN/A */ 442568SN/A 452568SN/A/** 462568SN/A * @file 472568SN/A * Definition of the Packet Class, a packet is a transaction occuring 482568SN/A * between a single level of the memory heirarchy (ie L1->L2). 492568SN/A */ 503260Ssaidi@eecs.umich.edu 518229Snate@binkert.org#include <cstring> 523260Ssaidi@eecs.umich.edu#include <iostream> 538229Snate@binkert.org 545314Sstever@gmail.com#include "base/cprintf.hh" 552590SN/A#include "base/misc.hh" 563348Sbinkertn@umich.edu#include "base/trace.hh" 572568SN/A#include "mem/packet.hh" 582568SN/A 595735Snate@binkert.orgusing namespace std; 605735Snate@binkert.org 614022Sstever@eecs.umich.edu// The one downside to bitsets is that static initializers can get ugly. 624022Sstever@eecs.umich.edu#define SET1(a1) (1 << (a1)) 634022Sstever@eecs.umich.edu#define SET2(a1, a2) (SET1(a1) | SET1(a2)) 644022Sstever@eecs.umich.edu#define SET3(a1, a2, a3) (SET2(a1, a2) | SET1(a3)) 654022Sstever@eecs.umich.edu#define SET4(a1, a2, a3, a4) (SET3(a1, a2, a3) | SET1(a4)) 664022Sstever@eecs.umich.edu#define SET5(a1, a2, a3, a4, a5) (SET4(a1, a2, a3, a4) | SET1(a5)) 674022Sstever@eecs.umich.edu#define SET6(a1, a2, a3, a4, a5, a6) (SET5(a1, a2, a3, a4, a5) | SET1(a6)) 682641Sstever@eecs.umich.edu 694022Sstever@eecs.umich.educonst MemCmd::CommandInfo 704022Sstever@eecs.umich.eduMemCmd::commandInfo[] = 712641Sstever@eecs.umich.edu{ 724022Sstever@eecs.umich.edu /* InvalidCmd */ 734022Sstever@eecs.umich.edu { 0, InvalidCmd, "InvalidCmd" }, 744022Sstever@eecs.umich.edu /* ReadReq */ 754022Sstever@eecs.umich.edu { SET3(IsRead, IsRequest, NeedsResponse), ReadResp, "ReadReq" }, 764473Sstever@eecs.umich.edu /* ReadResp */ 774473Sstever@eecs.umich.edu { SET3(IsRead, IsResponse, HasData), InvalidCmd, "ReadResp" }, 785319Sstever@gmail.com /* ReadRespWithInvalidate */ 795319Sstever@gmail.com { SET4(IsRead, IsResponse, HasData, IsInvalidate), 805319Sstever@gmail.com InvalidCmd, "ReadRespWithInvalidate" }, 814022Sstever@eecs.umich.edu /* WriteReq */ 824626Sstever@eecs.umich.edu { SET5(IsWrite, NeedsExclusive, IsRequest, NeedsResponse, HasData), 834022Sstever@eecs.umich.edu WriteResp, "WriteReq" }, 844022Sstever@eecs.umich.edu /* WriteResp */ 854626Sstever@eecs.umich.edu { SET3(IsWrite, NeedsExclusive, IsResponse), InvalidCmd, "WriteResp" }, 864022Sstever@eecs.umich.edu /* Writeback */ 874628Sstever@eecs.umich.edu { SET4(IsWrite, NeedsExclusive, IsRequest, HasData), 884628Sstever@eecs.umich.edu InvalidCmd, "Writeback" }, 894022Sstever@eecs.umich.edu /* SoftPFReq */ 904022Sstever@eecs.umich.edu { SET4(IsRead, IsRequest, IsSWPrefetch, NeedsResponse), 914022Sstever@eecs.umich.edu SoftPFResp, "SoftPFReq" }, 924022Sstever@eecs.umich.edu /* HardPFReq */ 934022Sstever@eecs.umich.edu { SET4(IsRead, IsRequest, IsHWPrefetch, NeedsResponse), 944022Sstever@eecs.umich.edu HardPFResp, "HardPFReq" }, 954022Sstever@eecs.umich.edu /* SoftPFResp */ 964022Sstever@eecs.umich.edu { SET4(IsRead, IsResponse, IsSWPrefetch, HasData), 974022Sstever@eecs.umich.edu InvalidCmd, "SoftPFResp" }, 984022Sstever@eecs.umich.edu /* HardPFResp */ 994022Sstever@eecs.umich.edu { SET4(IsRead, IsResponse, IsHWPrefetch, HasData), 1004022Sstever@eecs.umich.edu InvalidCmd, "HardPFResp" }, 1014022Sstever@eecs.umich.edu /* WriteInvalidateReq */ 1024626Sstever@eecs.umich.edu { SET6(IsWrite, NeedsExclusive, IsInvalidate, 1034626Sstever@eecs.umich.edu IsRequest, HasData, NeedsResponse), 1044022Sstever@eecs.umich.edu WriteInvalidateResp, "WriteInvalidateReq" }, 1054022Sstever@eecs.umich.edu /* WriteInvalidateResp */ 1065319Sstever@gmail.com { SET3(IsWrite, NeedsExclusive, IsResponse), 1074022Sstever@eecs.umich.edu InvalidCmd, "WriteInvalidateResp" }, 1084022Sstever@eecs.umich.edu /* UpgradeReq */ 1097465Ssteve.reinhardt@amd.com { SET5(IsInvalidate, NeedsExclusive, IsUpgrade, IsRequest, NeedsResponse), 1104628Sstever@eecs.umich.edu UpgradeResp, "UpgradeReq" }, 1117465Ssteve.reinhardt@amd.com /* SCUpgradeReq: response could be UpgradeResp or UpgradeFailResp */ 1127465Ssteve.reinhardt@amd.com { SET6(IsInvalidate, NeedsExclusive, IsUpgrade, IsLlsc, 1137465Ssteve.reinhardt@amd.com IsRequest, NeedsResponse), 1147465Ssteve.reinhardt@amd.com UpgradeResp, "SCUpgradeReq" }, 1154628Sstever@eecs.umich.edu /* UpgradeResp */ 1167465Ssteve.reinhardt@amd.com { SET3(NeedsExclusive, IsUpgrade, IsResponse), 1177465Ssteve.reinhardt@amd.com InvalidCmd, "UpgradeResp" }, 1187465Ssteve.reinhardt@amd.com /* SCUpgradeFailReq: generates UpgradeFailResp ASAP */ 1197465Ssteve.reinhardt@amd.com { SET5(IsInvalidate, NeedsExclusive, IsLlsc, 1207465Ssteve.reinhardt@amd.com IsRequest, NeedsResponse), 1217465Ssteve.reinhardt@amd.com UpgradeFailResp, "SCUpgradeFailReq" }, 1227465Ssteve.reinhardt@amd.com /* UpgradeFailResp */ 1235319Sstever@gmail.com { SET2(NeedsExclusive, IsResponse), 1247465Ssteve.reinhardt@amd.com InvalidCmd, "UpgradeFailResp" }, 1254022Sstever@eecs.umich.edu /* ReadExReq */ 1264626Sstever@eecs.umich.edu { SET5(IsRead, NeedsExclusive, IsInvalidate, IsRequest, NeedsResponse), 1274022Sstever@eecs.umich.edu ReadExResp, "ReadExReq" }, 1284022Sstever@eecs.umich.edu /* ReadExResp */ 1295319Sstever@gmail.com { SET4(IsRead, NeedsExclusive, IsResponse, HasData), 1304040Ssaidi@eecs.umich.edu InvalidCmd, "ReadExResp" }, 1315507Sstever@gmail.com /* LoadLockedReq: note that we use plain ReadResp as response, so that 1325507Sstever@gmail.com * we can also use ReadRespWithInvalidate when needed */ 1336076Sgblack@eecs.umich.edu { SET4(IsRead, IsLlsc, IsRequest, NeedsResponse), 1345507Sstever@gmail.com ReadResp, "LoadLockedReq" }, 1354626Sstever@eecs.umich.edu /* StoreCondReq */ 1366076Sgblack@eecs.umich.edu { SET6(IsWrite, NeedsExclusive, IsLlsc, 1374626Sstever@eecs.umich.edu IsRequest, NeedsResponse, HasData), 1384626Sstever@eecs.umich.edu StoreCondResp, "StoreCondReq" }, 1397669Ssteve.reinhardt@amd.com /* StoreCondFailReq: generates failing StoreCondResp ASAP */ 1407669Ssteve.reinhardt@amd.com { SET6(IsWrite, NeedsExclusive, IsLlsc, 1417669Ssteve.reinhardt@amd.com IsRequest, NeedsResponse, HasData), 1427669Ssteve.reinhardt@amd.com StoreCondResp, "StoreCondFailReq" }, 1434626Sstever@eecs.umich.edu /* StoreCondResp */ 1446076Sgblack@eecs.umich.edu { SET4(IsWrite, NeedsExclusive, IsLlsc, IsResponse), 1454626Sstever@eecs.umich.edu InvalidCmd, "StoreCondResp" }, 1464040Ssaidi@eecs.umich.edu /* SwapReq -- for Swap ldstub type operations */ 1474626Sstever@eecs.umich.edu { SET6(IsRead, IsWrite, NeedsExclusive, IsRequest, HasData, NeedsResponse), 1484040Ssaidi@eecs.umich.edu SwapResp, "SwapReq" }, 1494040Ssaidi@eecs.umich.edu /* SwapResp -- for Swap ldstub type operations */ 1504626Sstever@eecs.umich.edu { SET5(IsRead, IsWrite, NeedsExclusive, IsResponse, HasData), 1514870Sstever@eecs.umich.edu InvalidCmd, "SwapResp" }, 1525650Sgblack@eecs.umich.edu /* IntReq -- for interrupts */ 1535650Sgblack@eecs.umich.edu { SET4(IsWrite, IsRequest, NeedsResponse, HasData), 1546063Sgblack@eecs.umich.edu MessageResp, "MessageReq" }, 1555650Sgblack@eecs.umich.edu /* IntResp -- for interrupts */ 1566063Sgblack@eecs.umich.edu { SET2(IsWrite, IsResponse), InvalidCmd, "MessageResp" }, 1574870Sstever@eecs.umich.edu /* NetworkNackError -- nacked at network layer (not by protocol) */ 1584986Ssaidi@eecs.umich.edu { SET2(IsResponse, IsError), InvalidCmd, "NetworkNackError" }, 1594870Sstever@eecs.umich.edu /* InvalidDestError -- packet dest field invalid */ 1604986Ssaidi@eecs.umich.edu { SET2(IsResponse, IsError), InvalidCmd, "InvalidDestError" }, 1614870Sstever@eecs.umich.edu /* BadAddressError -- memory address invalid */ 1625314Sstever@gmail.com { SET2(IsResponse, IsError), InvalidCmd, "BadAddressError" }, 1638436SBrad.Beckmann@amd.com /* FunctionalReadError */ 1648436SBrad.Beckmann@amd.com { SET3(IsRead, IsResponse, IsError), InvalidCmd, "FunctionalReadError" }, 1658436SBrad.Beckmann@amd.com /* FunctionalWriteError */ 1668436SBrad.Beckmann@amd.com { SET3(IsWrite, IsResponse, IsError), InvalidCmd, "FunctionalWriteError" }, 1675314Sstever@gmail.com /* PrintReq */ 1688184Ssomayeh@cs.wisc.edu { SET2(IsRequest, IsPrint), InvalidCmd, "PrintReq" }, 1698184Ssomayeh@cs.wisc.edu /* Flush Request */ 1708436SBrad.Beckmann@amd.com { SET3(IsRequest, IsFlush, NeedsExclusive), InvalidCmd, "FlushReq" }, 1714022Sstever@eecs.umich.edu}; 1722592SN/A 1733607Srdreslin@umich.edubool 1745314Sstever@gmail.comPacket::checkFunctional(Printable *obj, Addr addr, int size, uint8_t *data) 1752641Sstever@eecs.umich.edu{ 1764626Sstever@eecs.umich.edu Addr func_start = getAddr(); 1774626Sstever@eecs.umich.edu Addr func_end = getAddr() + getSize() - 1; 1784626Sstever@eecs.umich.edu Addr val_start = addr; 1794626Sstever@eecs.umich.edu Addr val_end = val_start + size - 1; 1803260Ssaidi@eecs.umich.edu 1814626Sstever@eecs.umich.edu if (func_start > val_end || val_start > func_end) { 1824626Sstever@eecs.umich.edu // no intersection 1834626Sstever@eecs.umich.edu return false; 1844626Sstever@eecs.umich.edu } 1853260Ssaidi@eecs.umich.edu 1865314Sstever@gmail.com // check print first since it doesn't require data 1875314Sstever@gmail.com if (isPrint()) { 1885314Sstever@gmail.com dynamic_cast<PrintReqState*>(senderState)->printObj(obj); 1895314Sstever@gmail.com return false; 1905314Sstever@gmail.com } 1915314Sstever@gmail.com 1925314Sstever@gmail.com // if there's no data, there's no need to look further 1935314Sstever@gmail.com if (!data) { 1945314Sstever@gmail.com return false; 1955314Sstever@gmail.com } 1965314Sstever@gmail.com 1974626Sstever@eecs.umich.edu // offset of functional request into supplied value (could be 1984626Sstever@eecs.umich.edu // negative if partial overlap) 1994626Sstever@eecs.umich.edu int offset = func_start - val_start; 2003260Ssaidi@eecs.umich.edu 2014626Sstever@eecs.umich.edu if (isRead()) { 2024626Sstever@eecs.umich.edu if (func_start >= val_start && func_end <= val_end) { 2034626Sstever@eecs.umich.edu allocate(); 2045735Snate@binkert.org memcpy(getPtr<uint8_t>(), data + offset, getSize()); 2054626Sstever@eecs.umich.edu return true; 2063260Ssaidi@eecs.umich.edu } else { 2078668Sgeoffrey.blake@arm.com // Offsets and sizes to copy in case of partial overlap 2088668Sgeoffrey.blake@arm.com int func_offset; 2098668Sgeoffrey.blake@arm.com int val_offset; 2108668Sgeoffrey.blake@arm.com int overlap_size; 2118668Sgeoffrey.blake@arm.com 2128668Sgeoffrey.blake@arm.com // calculate offsets and copy sizes for the two byte arrays 2138668Sgeoffrey.blake@arm.com if (val_start < func_start && val_end <= func_end) { 2148668Sgeoffrey.blake@arm.com val_offset = func_start - val_start; 2158668Sgeoffrey.blake@arm.com func_offset = 0; 2168668Sgeoffrey.blake@arm.com overlap_size = val_end - func_start; 2178668Sgeoffrey.blake@arm.com } else if (val_start >= func_start && val_end > func_end) { 2188668Sgeoffrey.blake@arm.com val_offset = 0; 2198668Sgeoffrey.blake@arm.com func_offset = val_start - func_start; 2208668Sgeoffrey.blake@arm.com overlap_size = func_end - val_start; 2218668Sgeoffrey.blake@arm.com } else if (val_start >= func_start && val_end <= func_end) { 2228668Sgeoffrey.blake@arm.com val_offset = 0; 2238668Sgeoffrey.blake@arm.com func_offset = val_start - func_start; 2248668Sgeoffrey.blake@arm.com overlap_size = size; 2258668Sgeoffrey.blake@arm.com } else { 2268668Sgeoffrey.blake@arm.com panic("BUG: Missed a case for a partial functional request"); 2278668Sgeoffrey.blake@arm.com } 2288668Sgeoffrey.blake@arm.com 2298668Sgeoffrey.blake@arm.com // Figure out how much of the partial overlap should be copied 2308668Sgeoffrey.blake@arm.com // into the packet and not overwrite previously found bytes. 2318668Sgeoffrey.blake@arm.com if (bytesValidStart == 0 && bytesValidEnd == 0) { 2328668Sgeoffrey.blake@arm.com // No bytes have been copied yet, just set indices 2338668Sgeoffrey.blake@arm.com // to found range 2348668Sgeoffrey.blake@arm.com bytesValidStart = func_offset; 2358668Sgeoffrey.blake@arm.com bytesValidEnd = func_offset + overlap_size; 2368668Sgeoffrey.blake@arm.com } else { 2378668Sgeoffrey.blake@arm.com // Some bytes have already been copied. Use bytesValid 2388668Sgeoffrey.blake@arm.com // indices and offset values to figure out how much data 2398668Sgeoffrey.blake@arm.com // to copy and where to copy it to. 2408668Sgeoffrey.blake@arm.com 2418668Sgeoffrey.blake@arm.com // Indice overlap conditions to check 2428668Sgeoffrey.blake@arm.com int a = func_offset - bytesValidStart; 2438668Sgeoffrey.blake@arm.com int b = (func_offset + overlap_size) - bytesValidEnd; 2448668Sgeoffrey.blake@arm.com int c = func_offset - bytesValidEnd; 2458668Sgeoffrey.blake@arm.com int d = (func_offset + overlap_size) - bytesValidStart; 2468668Sgeoffrey.blake@arm.com 2478668Sgeoffrey.blake@arm.com if (a >= 0 && b <= 0) { 2488668Sgeoffrey.blake@arm.com // bytes already in pkt data array are superset of 2498668Sgeoffrey.blake@arm.com // found bytes, will not copy any bytes 2508668Sgeoffrey.blake@arm.com overlap_size = 0; 2518668Sgeoffrey.blake@arm.com } else if (a < 0 && d >= 0 && b <= 0) { 2528668Sgeoffrey.blake@arm.com // found bytes will move bytesValidStart towards 0 2538668Sgeoffrey.blake@arm.com overlap_size = bytesValidStart - func_offset; 2548668Sgeoffrey.blake@arm.com bytesValidStart = func_offset; 2558668Sgeoffrey.blake@arm.com } else if (b > 0 && c <= 0 && a >= 0) { 2568668Sgeoffrey.blake@arm.com // found bytes will move bytesValidEnd 2578668Sgeoffrey.blake@arm.com // towards end of pkt data array 2588668Sgeoffrey.blake@arm.com overlap_size = 2598668Sgeoffrey.blake@arm.com (func_offset + overlap_size) - bytesValidEnd; 2608668Sgeoffrey.blake@arm.com val_offset += bytesValidEnd - func_offset; 2618668Sgeoffrey.blake@arm.com func_offset = bytesValidEnd; 2628668Sgeoffrey.blake@arm.com bytesValidEnd += overlap_size; 2638668Sgeoffrey.blake@arm.com } else if (a < 0 && b > 0) { 2648668Sgeoffrey.blake@arm.com // Found bytes are superset of copied range. Will move 2658668Sgeoffrey.blake@arm.com // bytesValidStart towards 0 and bytesValidEnd towards 2668668Sgeoffrey.blake@arm.com // end of pkt data array. Need to break copy into two 2678668Sgeoffrey.blake@arm.com // pieces so as to not overwrite previously found data. 2688668Sgeoffrey.blake@arm.com 2698668Sgeoffrey.blake@arm.com // copy the first half 2708668Sgeoffrey.blake@arm.com uint8_t *dest = getPtr<uint8_t>() + func_offset; 2718668Sgeoffrey.blake@arm.com uint8_t *src = data + val_offset; 2728668Sgeoffrey.blake@arm.com memcpy(dest, src, (bytesValidStart - func_offset)); 2738668Sgeoffrey.blake@arm.com 2748668Sgeoffrey.blake@arm.com // re-calc the offsets and indices to do the copy 2758668Sgeoffrey.blake@arm.com // required for the second half 2768668Sgeoffrey.blake@arm.com val_offset += (bytesValidEnd - func_offset); 2778668Sgeoffrey.blake@arm.com bytesValidStart = func_offset; 2788668Sgeoffrey.blake@arm.com overlap_size = 2798668Sgeoffrey.blake@arm.com (func_offset + overlap_size) - bytesValidEnd; 2808668Sgeoffrey.blake@arm.com func_offset = bytesValidEnd; 2818668Sgeoffrey.blake@arm.com bytesValidEnd += overlap_size; 2828668Sgeoffrey.blake@arm.com } else if ((c > 0 && b > 0) 2838668Sgeoffrey.blake@arm.com || (a < 0 && d < 0)) { 2848668Sgeoffrey.blake@arm.com // region to be copied is discontiguous! Not supported. 2858668Sgeoffrey.blake@arm.com panic("BUG: Discontiguous bytes found" 2868668Sgeoffrey.blake@arm.com "for functional copying!"); 2878668Sgeoffrey.blake@arm.com } 2888668Sgeoffrey.blake@arm.com } 2898692Ssaidi@eecs.umich.edu assert(bytesValidEnd <= getSize()); 2908668Sgeoffrey.blake@arm.com 2918668Sgeoffrey.blake@arm.com // copy partial data into the packet's data array 2928668Sgeoffrey.blake@arm.com uint8_t *dest = getPtr<uint8_t>() + func_offset; 2938668Sgeoffrey.blake@arm.com uint8_t *src = data + val_offset; 2948668Sgeoffrey.blake@arm.com memcpy(dest, src, overlap_size); 2958668Sgeoffrey.blake@arm.com 2968668Sgeoffrey.blake@arm.com // check if we're done filling the functional access 2978668Sgeoffrey.blake@arm.com bool done = (bytesValidStart == 0) && (bytesValidEnd == getSize()); 2988668Sgeoffrey.blake@arm.com return done; 2993260Ssaidi@eecs.umich.edu } 3004626Sstever@eecs.umich.edu } else if (isWrite()) { 3014626Sstever@eecs.umich.edu if (offset >= 0) { 3025735Snate@binkert.org memcpy(data + offset, getPtr<uint8_t>(), 3035735Snate@binkert.org (min(func_end, val_end) - func_start) + 1); 3045735Snate@binkert.org } else { 3055735Snate@binkert.org // val_start > func_start 3065735Snate@binkert.org memcpy(data, getPtr<uint8_t>() - offset, 3075735Snate@binkert.org (min(func_end, val_end) - val_start) + 1); 3083260Ssaidi@eecs.umich.edu } 3095314Sstever@gmail.com } else { 3104626Sstever@eecs.umich.edu panic("Don't know how to handle command %s\n", cmdString()); 3115314Sstever@gmail.com } 3125314Sstever@gmail.com 3135314Sstever@gmail.com // keep going with request by default 3145314Sstever@gmail.com return false; 3152641Sstever@eecs.umich.edu} 3163260Ssaidi@eecs.umich.edu 3175314Sstever@gmail.comvoid 3185735Snate@binkert.orgPacket::print(ostream &o, const int verbosity, const string &prefix) const 3193260Ssaidi@eecs.umich.edu{ 3205314Sstever@gmail.com ccprintf(o, "%s[%x:%x] %s\n", prefix, 3215314Sstever@gmail.com getAddr(), getAddr() + getSize() - 1, cmdString()); 3223260Ssaidi@eecs.umich.edu} 3233260Ssaidi@eecs.umich.edu 3245735Snate@binkert.orgPacket::PrintReqState::PrintReqState(ostream &_os, int _verbosity) 3255735Snate@binkert.org : curPrefixPtr(new string("")), os(_os), verbosity(_verbosity) 3265314Sstever@gmail.com{ 3275314Sstever@gmail.com labelStack.push_back(LabelStackEntry("", curPrefixPtr)); 3285314Sstever@gmail.com} 3295314Sstever@gmail.com 3305314Sstever@gmail.comPacket::PrintReqState::~PrintReqState() 3315314Sstever@gmail.com{ 3325314Sstever@gmail.com labelStack.pop_back(); 3335314Sstever@gmail.com assert(labelStack.empty()); 3345314Sstever@gmail.com delete curPrefixPtr; 3355314Sstever@gmail.com} 3365314Sstever@gmail.com 3375314Sstever@gmail.comPacket::PrintReqState:: 3385735Snate@binkert.orgLabelStackEntry::LabelStackEntry(const string &_label, string *_prefix) 3395314Sstever@gmail.com : label(_label), prefix(_prefix), labelPrinted(false) 3405314Sstever@gmail.com{ 3415314Sstever@gmail.com} 3425314Sstever@gmail.com 3435314Sstever@gmail.comvoid 3445735Snate@binkert.orgPacket::PrintReqState::pushLabel(const string &lbl, const string &prefix) 3455314Sstever@gmail.com{ 3465314Sstever@gmail.com labelStack.push_back(LabelStackEntry(lbl, curPrefixPtr)); 3475735Snate@binkert.org curPrefixPtr = new string(*curPrefixPtr); 3485314Sstever@gmail.com *curPrefixPtr += prefix; 3495314Sstever@gmail.com} 3505314Sstever@gmail.com 3515314Sstever@gmail.comvoid 3525314Sstever@gmail.comPacket::PrintReqState::popLabel() 3535314Sstever@gmail.com{ 3545314Sstever@gmail.com delete curPrefixPtr; 3555314Sstever@gmail.com curPrefixPtr = labelStack.back().prefix; 3565314Sstever@gmail.com labelStack.pop_back(); 3575314Sstever@gmail.com assert(!labelStack.empty()); 3585314Sstever@gmail.com} 3595314Sstever@gmail.com 3605314Sstever@gmail.comvoid 3615314Sstever@gmail.comPacket::PrintReqState::printLabels() 3625314Sstever@gmail.com{ 3635314Sstever@gmail.com if (!labelStack.back().labelPrinted) { 3645314Sstever@gmail.com LabelStack::iterator i = labelStack.begin(); 3655314Sstever@gmail.com LabelStack::iterator end = labelStack.end(); 3665314Sstever@gmail.com while (i != end) { 3675314Sstever@gmail.com if (!i->labelPrinted) { 3685314Sstever@gmail.com ccprintf(os, "%s%s\n", *(i->prefix), i->label); 3695314Sstever@gmail.com i->labelPrinted = true; 3705314Sstever@gmail.com } 3715314Sstever@gmail.com i++; 3725314Sstever@gmail.com } 3735314Sstever@gmail.com } 3745314Sstever@gmail.com} 3755314Sstever@gmail.com 3765314Sstever@gmail.com 3775314Sstever@gmail.comvoid 3785314Sstever@gmail.comPacket::PrintReqState::printObj(Printable *obj) 3795314Sstever@gmail.com{ 3805314Sstever@gmail.com printLabels(); 3815314Sstever@gmail.com obj->print(os, verbosity, curPrefix()); 3825314Sstever@gmail.com} 383