packet.cc revision 10570
12568SN/A/* 210325Sgeoffrey.blake@arm.com * Copyright (c) 2011-2014 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" }, 10110345SCurtis.Dunham@arm.com /* WriteInvalidateReq */ 1024626Sstever@eecs.umich.edu { SET6(IsWrite, NeedsExclusive, IsInvalidate, 1034626Sstever@eecs.umich.edu IsRequest, HasData, NeedsResponse), 1044022Sstever@eecs.umich.edu WriteInvalidateResp, "WriteInvalidateReq" }, 10510345SCurtis.Dunham@arm.com /* 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" }, 11810325Sgeoffrey.blake@arm.com /* SCUpgradeFailReq: generates UpgradeFailResp but still gets the data */ 11910325Sgeoffrey.blake@arm.com { SET6(IsRead, NeedsExclusive, IsInvalidate, 12010325Sgeoffrey.blake@arm.com IsLlsc, IsRequest, NeedsResponse), 1217465Ssteve.reinhardt@amd.com UpgradeFailResp, "SCUpgradeFailReq" }, 12210325Sgeoffrey.blake@arm.com /* UpgradeFailResp - Behaves like a ReadExReq, but notifies an SC 12310325Sgeoffrey.blake@arm.com * that it has failed, acquires line as Dirty*/ 12410325Sgeoffrey.blake@arm.com { SET4(IsRead, NeedsExclusive, IsResponse, HasData), 1257465Ssteve.reinhardt@amd.com InvalidCmd, "UpgradeFailResp" }, 1264022Sstever@eecs.umich.edu /* ReadExReq */ 1274626Sstever@eecs.umich.edu { SET5(IsRead, NeedsExclusive, IsInvalidate, IsRequest, NeedsResponse), 1284022Sstever@eecs.umich.edu ReadExResp, "ReadExReq" }, 1294022Sstever@eecs.umich.edu /* ReadExResp */ 1305319Sstever@gmail.com { SET4(IsRead, NeedsExclusive, IsResponse, HasData), 1314040Ssaidi@eecs.umich.edu InvalidCmd, "ReadExResp" }, 1325507Sstever@gmail.com /* LoadLockedReq: note that we use plain ReadResp as response, so that 1335507Sstever@gmail.com * we can also use ReadRespWithInvalidate when needed */ 1346076Sgblack@eecs.umich.edu { SET4(IsRead, IsLlsc, IsRequest, NeedsResponse), 1355507Sstever@gmail.com ReadResp, "LoadLockedReq" }, 1364626Sstever@eecs.umich.edu /* StoreCondReq */ 1376076Sgblack@eecs.umich.edu { SET6(IsWrite, NeedsExclusive, IsLlsc, 1384626Sstever@eecs.umich.edu IsRequest, NeedsResponse, HasData), 1394626Sstever@eecs.umich.edu StoreCondResp, "StoreCondReq" }, 14010325Sgeoffrey.blake@arm.com /* StoreCondFailReq: generates failing StoreCondResp */ 1417669Ssteve.reinhardt@amd.com { SET6(IsWrite, NeedsExclusive, IsLlsc, 1427669Ssteve.reinhardt@amd.com IsRequest, NeedsResponse, HasData), 1437669Ssteve.reinhardt@amd.com StoreCondResp, "StoreCondFailReq" }, 1444626Sstever@eecs.umich.edu /* StoreCondResp */ 1456076Sgblack@eecs.umich.edu { SET4(IsWrite, NeedsExclusive, IsLlsc, IsResponse), 1464626Sstever@eecs.umich.edu InvalidCmd, "StoreCondResp" }, 1474040Ssaidi@eecs.umich.edu /* SwapReq -- for Swap ldstub type operations */ 1484626Sstever@eecs.umich.edu { SET6(IsRead, IsWrite, NeedsExclusive, IsRequest, HasData, NeedsResponse), 1494040Ssaidi@eecs.umich.edu SwapResp, "SwapReq" }, 1504040Ssaidi@eecs.umich.edu /* SwapResp -- for Swap ldstub type operations */ 1514626Sstever@eecs.umich.edu { SET5(IsRead, IsWrite, NeedsExclusive, IsResponse, HasData), 1524870Sstever@eecs.umich.edu InvalidCmd, "SwapResp" }, 1535650Sgblack@eecs.umich.edu /* IntReq -- for interrupts */ 1545650Sgblack@eecs.umich.edu { SET4(IsWrite, IsRequest, NeedsResponse, HasData), 1556063Sgblack@eecs.umich.edu MessageResp, "MessageReq" }, 1565650Sgblack@eecs.umich.edu /* IntResp -- for interrupts */ 1576063Sgblack@eecs.umich.edu { SET2(IsWrite, IsResponse), InvalidCmd, "MessageResp" }, 1584870Sstever@eecs.umich.edu /* InvalidDestError -- packet dest field invalid */ 1594986Ssaidi@eecs.umich.edu { SET2(IsResponse, IsError), InvalidCmd, "InvalidDestError" }, 1604870Sstever@eecs.umich.edu /* BadAddressError -- memory address invalid */ 1615314Sstever@gmail.com { SET2(IsResponse, IsError), InvalidCmd, "BadAddressError" }, 1628436SBrad.Beckmann@amd.com /* FunctionalReadError */ 1638436SBrad.Beckmann@amd.com { SET3(IsRead, IsResponse, IsError), InvalidCmd, "FunctionalReadError" }, 1648436SBrad.Beckmann@amd.com /* FunctionalWriteError */ 1658436SBrad.Beckmann@amd.com { SET3(IsWrite, IsResponse, IsError), InvalidCmd, "FunctionalWriteError" }, 1665314Sstever@gmail.com /* PrintReq */ 1678184Ssomayeh@cs.wisc.edu { SET2(IsRequest, IsPrint), InvalidCmd, "PrintReq" }, 1688184Ssomayeh@cs.wisc.edu /* Flush Request */ 1698436SBrad.Beckmann@amd.com { SET3(IsRequest, IsFlush, NeedsExclusive), InvalidCmd, "FlushReq" }, 1708716Snilay@cs.wisc.edu /* Invalidation Request */ 1718716Snilay@cs.wisc.edu { SET3(NeedsExclusive, IsInvalidate, IsRequest), 1728716Snilay@cs.wisc.edu InvalidCmd, "InvalidationReq" }, 1734022Sstever@eecs.umich.edu}; 1742592SN/A 1753607Srdreslin@umich.edubool 17610028SGiacomo.Gabrielli@arm.comPacket::checkFunctional(Printable *obj, Addr addr, bool is_secure, int size, 17710570Sandreas.hansson@arm.com uint8_t *_data) 1782641Sstever@eecs.umich.edu{ 1794626Sstever@eecs.umich.edu Addr func_start = getAddr(); 1804626Sstever@eecs.umich.edu Addr func_end = getAddr() + getSize() - 1; 1814626Sstever@eecs.umich.edu Addr val_start = addr; 1824626Sstever@eecs.umich.edu Addr val_end = val_start + size - 1; 1833260Ssaidi@eecs.umich.edu 18410028SGiacomo.Gabrielli@arm.com if (is_secure != _isSecure || func_start > val_end || 18510028SGiacomo.Gabrielli@arm.com val_start > func_end) { 1864626Sstever@eecs.umich.edu // no intersection 1874626Sstever@eecs.umich.edu return false; 1884626Sstever@eecs.umich.edu } 1893260Ssaidi@eecs.umich.edu 1905314Sstever@gmail.com // check print first since it doesn't require data 1915314Sstever@gmail.com if (isPrint()) { 19210570Sandreas.hansson@arm.com assert(!_data); 19310376Sandreas.hansson@arm.com safe_cast<PrintReqState*>(senderState)->printObj(obj); 1945314Sstever@gmail.com return false; 1955314Sstever@gmail.com } 1965314Sstever@gmail.com 19710570Sandreas.hansson@arm.com // we allow the caller to pass NULL to signify the other packet 19810570Sandreas.hansson@arm.com // has no data 19910570Sandreas.hansson@arm.com if (!_data) { 2005314Sstever@gmail.com return false; 2015314Sstever@gmail.com } 2025314Sstever@gmail.com 2034626Sstever@eecs.umich.edu // offset of functional request into supplied value (could be 2044626Sstever@eecs.umich.edu // negative if partial overlap) 2054626Sstever@eecs.umich.edu int offset = func_start - val_start; 2063260Ssaidi@eecs.umich.edu 2074626Sstever@eecs.umich.edu if (isRead()) { 2084626Sstever@eecs.umich.edu if (func_start >= val_start && func_end <= val_end) { 20910570Sandreas.hansson@arm.com memcpy(getPtr<uint8_t>(), _data + offset, getSize()); 21010570Sandreas.hansson@arm.com // complete overlap, and as the current packet is a read 21110570Sandreas.hansson@arm.com // we are done 2124626Sstever@eecs.umich.edu return true; 2133260Ssaidi@eecs.umich.edu } else { 2148668Sgeoffrey.blake@arm.com // Offsets and sizes to copy in case of partial overlap 2158668Sgeoffrey.blake@arm.com int func_offset; 2168668Sgeoffrey.blake@arm.com int val_offset; 2178668Sgeoffrey.blake@arm.com int overlap_size; 2188668Sgeoffrey.blake@arm.com 2198668Sgeoffrey.blake@arm.com // calculate offsets and copy sizes for the two byte arrays 2208668Sgeoffrey.blake@arm.com if (val_start < func_start && val_end <= func_end) { 2218668Sgeoffrey.blake@arm.com val_offset = func_start - val_start; 2228668Sgeoffrey.blake@arm.com func_offset = 0; 2238668Sgeoffrey.blake@arm.com overlap_size = val_end - func_start; 2248668Sgeoffrey.blake@arm.com } else if (val_start >= func_start && val_end > func_end) { 2258668Sgeoffrey.blake@arm.com val_offset = 0; 2268668Sgeoffrey.blake@arm.com func_offset = val_start - func_start; 2278668Sgeoffrey.blake@arm.com overlap_size = func_end - val_start; 2288668Sgeoffrey.blake@arm.com } else if (val_start >= func_start && val_end <= func_end) { 2298668Sgeoffrey.blake@arm.com val_offset = 0; 2308668Sgeoffrey.blake@arm.com func_offset = val_start - func_start; 2318668Sgeoffrey.blake@arm.com overlap_size = size; 2328668Sgeoffrey.blake@arm.com } else { 2338668Sgeoffrey.blake@arm.com panic("BUG: Missed a case for a partial functional request"); 2348668Sgeoffrey.blake@arm.com } 2358668Sgeoffrey.blake@arm.com 2368668Sgeoffrey.blake@arm.com // Figure out how much of the partial overlap should be copied 2378668Sgeoffrey.blake@arm.com // into the packet and not overwrite previously found bytes. 2388668Sgeoffrey.blake@arm.com if (bytesValidStart == 0 && bytesValidEnd == 0) { 2398668Sgeoffrey.blake@arm.com // No bytes have been copied yet, just set indices 2408668Sgeoffrey.blake@arm.com // to found range 2418668Sgeoffrey.blake@arm.com bytesValidStart = func_offset; 2428668Sgeoffrey.blake@arm.com bytesValidEnd = func_offset + overlap_size; 2438668Sgeoffrey.blake@arm.com } else { 2448668Sgeoffrey.blake@arm.com // Some bytes have already been copied. Use bytesValid 2458668Sgeoffrey.blake@arm.com // indices and offset values to figure out how much data 2468668Sgeoffrey.blake@arm.com // to copy and where to copy it to. 2478668Sgeoffrey.blake@arm.com 2488668Sgeoffrey.blake@arm.com // Indice overlap conditions to check 2498668Sgeoffrey.blake@arm.com int a = func_offset - bytesValidStart; 2508668Sgeoffrey.blake@arm.com int b = (func_offset + overlap_size) - bytesValidEnd; 2518668Sgeoffrey.blake@arm.com int c = func_offset - bytesValidEnd; 2528668Sgeoffrey.blake@arm.com int d = (func_offset + overlap_size) - bytesValidStart; 2538668Sgeoffrey.blake@arm.com 2548668Sgeoffrey.blake@arm.com if (a >= 0 && b <= 0) { 2558668Sgeoffrey.blake@arm.com // bytes already in pkt data array are superset of 2568668Sgeoffrey.blake@arm.com // found bytes, will not copy any bytes 2578668Sgeoffrey.blake@arm.com overlap_size = 0; 2588668Sgeoffrey.blake@arm.com } else if (a < 0 && d >= 0 && b <= 0) { 2598668Sgeoffrey.blake@arm.com // found bytes will move bytesValidStart towards 0 2608668Sgeoffrey.blake@arm.com overlap_size = bytesValidStart - func_offset; 2618668Sgeoffrey.blake@arm.com bytesValidStart = func_offset; 2628668Sgeoffrey.blake@arm.com } else if (b > 0 && c <= 0 && a >= 0) { 2638668Sgeoffrey.blake@arm.com // found bytes will move bytesValidEnd 2648668Sgeoffrey.blake@arm.com // towards end of pkt data array 2658668Sgeoffrey.blake@arm.com overlap_size = 2668668Sgeoffrey.blake@arm.com (func_offset + overlap_size) - bytesValidEnd; 2678668Sgeoffrey.blake@arm.com val_offset += bytesValidEnd - func_offset; 2688668Sgeoffrey.blake@arm.com func_offset = bytesValidEnd; 2698668Sgeoffrey.blake@arm.com bytesValidEnd += overlap_size; 2708668Sgeoffrey.blake@arm.com } else if (a < 0 && b > 0) { 2718668Sgeoffrey.blake@arm.com // Found bytes are superset of copied range. Will move 2728668Sgeoffrey.blake@arm.com // bytesValidStart towards 0 and bytesValidEnd towards 2738668Sgeoffrey.blake@arm.com // end of pkt data array. Need to break copy into two 2748668Sgeoffrey.blake@arm.com // pieces so as to not overwrite previously found data. 2758668Sgeoffrey.blake@arm.com 2768668Sgeoffrey.blake@arm.com // copy the first half 2778668Sgeoffrey.blake@arm.com uint8_t *dest = getPtr<uint8_t>() + func_offset; 27810570Sandreas.hansson@arm.com uint8_t *src = _data + val_offset; 2798668Sgeoffrey.blake@arm.com memcpy(dest, src, (bytesValidStart - func_offset)); 2808668Sgeoffrey.blake@arm.com 2818668Sgeoffrey.blake@arm.com // re-calc the offsets and indices to do the copy 2828668Sgeoffrey.blake@arm.com // required for the second half 2838668Sgeoffrey.blake@arm.com val_offset += (bytesValidEnd - func_offset); 2848668Sgeoffrey.blake@arm.com bytesValidStart = func_offset; 2858668Sgeoffrey.blake@arm.com overlap_size = 2868668Sgeoffrey.blake@arm.com (func_offset + overlap_size) - bytesValidEnd; 2878668Sgeoffrey.blake@arm.com func_offset = bytesValidEnd; 2888668Sgeoffrey.blake@arm.com bytesValidEnd += overlap_size; 2898668Sgeoffrey.blake@arm.com } else if ((c > 0 && b > 0) 2908668Sgeoffrey.blake@arm.com || (a < 0 && d < 0)) { 2918668Sgeoffrey.blake@arm.com // region to be copied is discontiguous! Not supported. 2928668Sgeoffrey.blake@arm.com panic("BUG: Discontiguous bytes found" 2938668Sgeoffrey.blake@arm.com "for functional copying!"); 2948668Sgeoffrey.blake@arm.com } 2958668Sgeoffrey.blake@arm.com } 2968692Ssaidi@eecs.umich.edu assert(bytesValidEnd <= getSize()); 2978668Sgeoffrey.blake@arm.com 2988668Sgeoffrey.blake@arm.com // copy partial data into the packet's data array 2998668Sgeoffrey.blake@arm.com uint8_t *dest = getPtr<uint8_t>() + func_offset; 30010570Sandreas.hansson@arm.com uint8_t *src = _data + val_offset; 3018668Sgeoffrey.blake@arm.com memcpy(dest, src, overlap_size); 3028668Sgeoffrey.blake@arm.com 3038668Sgeoffrey.blake@arm.com // check if we're done filling the functional access 3048668Sgeoffrey.blake@arm.com bool done = (bytesValidStart == 0) && (bytesValidEnd == getSize()); 3058668Sgeoffrey.blake@arm.com return done; 3063260Ssaidi@eecs.umich.edu } 3074626Sstever@eecs.umich.edu } else if (isWrite()) { 3084626Sstever@eecs.umich.edu if (offset >= 0) { 30910570Sandreas.hansson@arm.com memcpy(_data + offset, getConstPtr<uint8_t>(), 3105735Snate@binkert.org (min(func_end, val_end) - func_start) + 1); 3115735Snate@binkert.org } else { 3125735Snate@binkert.org // val_start > func_start 31310570Sandreas.hansson@arm.com memcpy(_data, getConstPtr<uint8_t>() - offset, 3145735Snate@binkert.org (min(func_end, val_end) - val_start) + 1); 3153260Ssaidi@eecs.umich.edu } 3165314Sstever@gmail.com } else { 3174626Sstever@eecs.umich.edu panic("Don't know how to handle command %s\n", cmdString()); 3185314Sstever@gmail.com } 3195314Sstever@gmail.com 3205314Sstever@gmail.com // keep going with request by default 3215314Sstever@gmail.com return false; 3222641Sstever@eecs.umich.edu} 3233260Ssaidi@eecs.umich.edu 3245314Sstever@gmail.comvoid 3259542Sandreas.hansson@arm.comPacket::pushSenderState(Packet::SenderState *sender_state) 3269542Sandreas.hansson@arm.com{ 3279542Sandreas.hansson@arm.com assert(sender_state != NULL); 3289542Sandreas.hansson@arm.com sender_state->predecessor = senderState; 3299542Sandreas.hansson@arm.com senderState = sender_state; 3309542Sandreas.hansson@arm.com} 3319542Sandreas.hansson@arm.com 3329542Sandreas.hansson@arm.comPacket::SenderState * 3339542Sandreas.hansson@arm.comPacket::popSenderState() 3349542Sandreas.hansson@arm.com{ 3359542Sandreas.hansson@arm.com assert(senderState != NULL); 3369542Sandreas.hansson@arm.com SenderState *sender_state = senderState; 3379542Sandreas.hansson@arm.com senderState = sender_state->predecessor; 3389542Sandreas.hansson@arm.com sender_state->predecessor = NULL; 3399542Sandreas.hansson@arm.com return sender_state; 3409542Sandreas.hansson@arm.com} 3419542Sandreas.hansson@arm.com 3429542Sandreas.hansson@arm.comvoid 3435735Snate@binkert.orgPacket::print(ostream &o, const int verbosity, const string &prefix) const 3443260Ssaidi@eecs.umich.edu{ 3455314Sstever@gmail.com ccprintf(o, "%s[%x:%x] %s\n", prefix, 3465314Sstever@gmail.com getAddr(), getAddr() + getSize() - 1, cmdString()); 3473260Ssaidi@eecs.umich.edu} 3483260Ssaidi@eecs.umich.edu 3499663Suri.wiener@arm.comstd::string 3509663Suri.wiener@arm.comPacket::print() const { 3519663Suri.wiener@arm.com ostringstream str; 3529663Suri.wiener@arm.com print(str); 3539663Suri.wiener@arm.com return str.str(); 3549663Suri.wiener@arm.com} 3559663Suri.wiener@arm.com 3565735Snate@binkert.orgPacket::PrintReqState::PrintReqState(ostream &_os, int _verbosity) 3575735Snate@binkert.org : curPrefixPtr(new string("")), os(_os), verbosity(_verbosity) 3585314Sstever@gmail.com{ 3595314Sstever@gmail.com labelStack.push_back(LabelStackEntry("", curPrefixPtr)); 3605314Sstever@gmail.com} 3615314Sstever@gmail.com 3625314Sstever@gmail.comPacket::PrintReqState::~PrintReqState() 3635314Sstever@gmail.com{ 3645314Sstever@gmail.com labelStack.pop_back(); 3655314Sstever@gmail.com assert(labelStack.empty()); 3665314Sstever@gmail.com delete curPrefixPtr; 3675314Sstever@gmail.com} 3685314Sstever@gmail.com 3695314Sstever@gmail.comPacket::PrintReqState:: 3705735Snate@binkert.orgLabelStackEntry::LabelStackEntry(const string &_label, string *_prefix) 3715314Sstever@gmail.com : label(_label), prefix(_prefix), labelPrinted(false) 3725314Sstever@gmail.com{ 3735314Sstever@gmail.com} 3745314Sstever@gmail.com 3755314Sstever@gmail.comvoid 3765735Snate@binkert.orgPacket::PrintReqState::pushLabel(const string &lbl, const string &prefix) 3775314Sstever@gmail.com{ 3785314Sstever@gmail.com labelStack.push_back(LabelStackEntry(lbl, curPrefixPtr)); 3795735Snate@binkert.org curPrefixPtr = new string(*curPrefixPtr); 3805314Sstever@gmail.com *curPrefixPtr += prefix; 3815314Sstever@gmail.com} 3825314Sstever@gmail.com 3835314Sstever@gmail.comvoid 3845314Sstever@gmail.comPacket::PrintReqState::popLabel() 3855314Sstever@gmail.com{ 3865314Sstever@gmail.com delete curPrefixPtr; 3875314Sstever@gmail.com curPrefixPtr = labelStack.back().prefix; 3885314Sstever@gmail.com labelStack.pop_back(); 3895314Sstever@gmail.com assert(!labelStack.empty()); 3905314Sstever@gmail.com} 3915314Sstever@gmail.com 3925314Sstever@gmail.comvoid 3935314Sstever@gmail.comPacket::PrintReqState::printLabels() 3945314Sstever@gmail.com{ 3955314Sstever@gmail.com if (!labelStack.back().labelPrinted) { 3965314Sstever@gmail.com LabelStack::iterator i = labelStack.begin(); 3975314Sstever@gmail.com LabelStack::iterator end = labelStack.end(); 3985314Sstever@gmail.com while (i != end) { 3995314Sstever@gmail.com if (!i->labelPrinted) { 4005314Sstever@gmail.com ccprintf(os, "%s%s\n", *(i->prefix), i->label); 4015314Sstever@gmail.com i->labelPrinted = true; 4025314Sstever@gmail.com } 4035314Sstever@gmail.com i++; 4045314Sstever@gmail.com } 4055314Sstever@gmail.com } 4065314Sstever@gmail.com} 4075314Sstever@gmail.com 4085314Sstever@gmail.com 4095314Sstever@gmail.comvoid 4105314Sstever@gmail.comPacket::PrintReqState::printObj(Printable *obj) 4115314Sstever@gmail.com{ 4125314Sstever@gmail.com printLabels(); 4135314Sstever@gmail.com obj->print(os, verbosity, curPrefix()); 4145314Sstever@gmail.com} 415