packet.cc revision 12334
12568SN/A/* 211600Sandreas.hansson@arm.com * Copyright (c) 2011-2016 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 1510975Sdavid.hashe@amd.com * Copyright (c) 2010,2015 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 5111793Sbrandon.potter@amd.com#include "mem/packet.hh" 5211793Sbrandon.potter@amd.com 538229Snate@binkert.org#include <cstring> 543260Ssaidi@eecs.umich.edu#include <iostream> 558229Snate@binkert.org 565314Sstever@gmail.com#include "base/cprintf.hh" 5712334Sgabeblack@google.com#include "base/logging.hh" 583348Sbinkertn@umich.edu#include "base/trace.hh" 592568SN/A 605735Snate@binkert.orgusing namespace std; 615735Snate@binkert.org 624022Sstever@eecs.umich.edu// The one downside to bitsets is that static initializers can get ugly. 634022Sstever@eecs.umich.edu#define SET1(a1) (1 << (a1)) 644022Sstever@eecs.umich.edu#define SET2(a1, a2) (SET1(a1) | SET1(a2)) 654022Sstever@eecs.umich.edu#define SET3(a1, a2, a3) (SET2(a1, a2) | SET1(a3)) 664022Sstever@eecs.umich.edu#define SET4(a1, a2, a3, a4) (SET3(a1, a2, a3) | SET1(a4)) 674022Sstever@eecs.umich.edu#define SET5(a1, a2, a3, a4, a5) (SET4(a1, a2, a3, a4) | SET1(a5)) 684022Sstever@eecs.umich.edu#define SET6(a1, a2, a3, a4, a5, a6) (SET5(a1, a2, a3, a4, a5) | SET1(a6)) 6911600Sandreas.hansson@arm.com#define SET7(a1, a2, a3, a4, a5, a6, a7) (SET6(a1, a2, a3, a4, a5, a6) | \ 7011600Sandreas.hansson@arm.com SET1(a7)) 712641Sstever@eecs.umich.edu 724022Sstever@eecs.umich.educonst MemCmd::CommandInfo 734022Sstever@eecs.umich.eduMemCmd::commandInfo[] = 742641Sstever@eecs.umich.edu{ 754022Sstever@eecs.umich.edu /* InvalidCmd */ 764022Sstever@eecs.umich.edu { 0, InvalidCmd, "InvalidCmd" }, 7710885Sandreas.hansson@arm.com /* ReadReq - Read issued by a non-caching agent such as a CPU or 7810885Sandreas.hansson@arm.com * device, with no restrictions on alignment. */ 794022Sstever@eecs.umich.edu { SET3(IsRead, IsRequest, NeedsResponse), ReadResp, "ReadReq" }, 804473Sstever@eecs.umich.edu /* ReadResp */ 814473Sstever@eecs.umich.edu { SET3(IsRead, IsResponse, HasData), InvalidCmd, "ReadResp" }, 825319Sstever@gmail.com /* ReadRespWithInvalidate */ 835319Sstever@gmail.com { SET4(IsRead, IsResponse, HasData, IsInvalidate), 845319Sstever@gmail.com InvalidCmd, "ReadRespWithInvalidate" }, 854022Sstever@eecs.umich.edu /* WriteReq */ 8611284Sandreas.hansson@arm.com { SET5(IsWrite, NeedsWritable, IsRequest, NeedsResponse, HasData), 874022Sstever@eecs.umich.edu WriteResp, "WriteReq" }, 884022Sstever@eecs.umich.edu /* WriteResp */ 8911287Sandreas.hansson@arm.com { SET2(IsWrite, IsResponse), InvalidCmd, "WriteResp" }, 9011199Sandreas.hansson@arm.com /* WritebackDirty */ 9111600Sandreas.hansson@arm.com { SET5(IsWrite, IsRequest, IsEviction, HasData, FromCache), 9211199Sandreas.hansson@arm.com InvalidCmd, "WritebackDirty" }, 9311199Sandreas.hansson@arm.com /* WritebackClean - This allows the upstream cache to writeback a 9411199Sandreas.hansson@arm.com * line to the downstream cache without it being considered 9511199Sandreas.hansson@arm.com * dirty. */ 9611600Sandreas.hansson@arm.com { SET5(IsWrite, IsRequest, IsEviction, HasData, FromCache), 9711199Sandreas.hansson@arm.com InvalidCmd, "WritebackClean" }, 9810883Sali.jafri@arm.com /* CleanEvict */ 9911600Sandreas.hansson@arm.com { SET3(IsRequest, IsEviction, FromCache), InvalidCmd, "CleanEvict" }, 1004022Sstever@eecs.umich.edu /* SoftPFReq */ 1014022Sstever@eecs.umich.edu { SET4(IsRead, IsRequest, IsSWPrefetch, NeedsResponse), 1024022Sstever@eecs.umich.edu SoftPFResp, "SoftPFReq" }, 1034022Sstever@eecs.umich.edu /* HardPFReq */ 10411600Sandreas.hansson@arm.com { SET5(IsRead, IsRequest, IsHWPrefetch, NeedsResponse, FromCache), 1054022Sstever@eecs.umich.edu HardPFResp, "HardPFReq" }, 1064022Sstever@eecs.umich.edu /* SoftPFResp */ 1074022Sstever@eecs.umich.edu { SET4(IsRead, IsResponse, IsSWPrefetch, HasData), 1084022Sstever@eecs.umich.edu InvalidCmd, "SoftPFResp" }, 1094022Sstever@eecs.umich.edu /* HardPFResp */ 1104022Sstever@eecs.umich.edu { SET4(IsRead, IsResponse, IsHWPrefetch, HasData), 1114022Sstever@eecs.umich.edu InvalidCmd, "HardPFResp" }, 11210886Sandreas.hansson@arm.com /* WriteLineReq */ 11311284Sandreas.hansson@arm.com { SET5(IsWrite, NeedsWritable, IsRequest, NeedsResponse, HasData), 11410886Sandreas.hansson@arm.com WriteResp, "WriteLineReq" }, 1154022Sstever@eecs.umich.edu /* UpgradeReq */ 11611600Sandreas.hansson@arm.com { SET6(IsInvalidate, NeedsWritable, IsUpgrade, IsRequest, NeedsResponse, 11711600Sandreas.hansson@arm.com FromCache), 1184628Sstever@eecs.umich.edu UpgradeResp, "UpgradeReq" }, 1197465Ssteve.reinhardt@amd.com /* SCUpgradeReq: response could be UpgradeResp or UpgradeFailResp */ 12011600Sandreas.hansson@arm.com { SET7(IsInvalidate, NeedsWritable, IsUpgrade, IsLlsc, 12111600Sandreas.hansson@arm.com IsRequest, NeedsResponse, FromCache), 1227465Ssteve.reinhardt@amd.com UpgradeResp, "SCUpgradeReq" }, 1234628Sstever@eecs.umich.edu /* UpgradeResp */ 12411287Sandreas.hansson@arm.com { SET2(IsUpgrade, IsResponse), 1257465Ssteve.reinhardt@amd.com InvalidCmd, "UpgradeResp" }, 12610325Sgeoffrey.blake@arm.com /* SCUpgradeFailReq: generates UpgradeFailResp but still gets the data */ 12711600Sandreas.hansson@arm.com { SET7(IsRead, NeedsWritable, IsInvalidate, 12811600Sandreas.hansson@arm.com IsLlsc, IsRequest, NeedsResponse, FromCache), 1297465Ssteve.reinhardt@amd.com UpgradeFailResp, "SCUpgradeFailReq" }, 13010325Sgeoffrey.blake@arm.com /* UpgradeFailResp - Behaves like a ReadExReq, but notifies an SC 13110325Sgeoffrey.blake@arm.com * that it has failed, acquires line as Dirty*/ 13211287Sandreas.hansson@arm.com { SET3(IsRead, IsResponse, HasData), 1337465Ssteve.reinhardt@amd.com InvalidCmd, "UpgradeFailResp" }, 13410885Sandreas.hansson@arm.com /* ReadExReq - Read issues by a cache, always cache-line aligned, 13510885Sandreas.hansson@arm.com * and the response is guaranteed to be writeable (exclusive or 13610885Sandreas.hansson@arm.com * even modified) */ 13711600Sandreas.hansson@arm.com { SET6(IsRead, NeedsWritable, IsInvalidate, IsRequest, NeedsResponse, 13811600Sandreas.hansson@arm.com FromCache), 1394022Sstever@eecs.umich.edu ReadExResp, "ReadExReq" }, 14010885Sandreas.hansson@arm.com /* ReadExResp - Response matching a read exclusive, as we check 14110885Sandreas.hansson@arm.com * the need for exclusive also on responses */ 14211287Sandreas.hansson@arm.com { SET3(IsRead, IsResponse, HasData), 1434040Ssaidi@eecs.umich.edu InvalidCmd, "ReadExResp" }, 14410885Sandreas.hansson@arm.com /* ReadCleanReq - Read issued by a cache, always cache-line 14510885Sandreas.hansson@arm.com * aligned, and the response is guaranteed to not contain dirty data 14610885Sandreas.hansson@arm.com * (exclusive or shared).*/ 14711600Sandreas.hansson@arm.com { SET4(IsRead, IsRequest, NeedsResponse, FromCache), 14811600Sandreas.hansson@arm.com ReadResp, "ReadCleanReq" }, 14910885Sandreas.hansson@arm.com /* ReadSharedReq - Read issued by a cache, always cache-line 15010885Sandreas.hansson@arm.com * aligned, response is shared, possibly exclusive, owned or even 15110885Sandreas.hansson@arm.com * modified. */ 15211600Sandreas.hansson@arm.com { SET4(IsRead, IsRequest, NeedsResponse, FromCache), 15311600Sandreas.hansson@arm.com ReadResp, "ReadSharedReq" }, 1545507Sstever@gmail.com /* LoadLockedReq: note that we use plain ReadResp as response, so that 1555507Sstever@gmail.com * we can also use ReadRespWithInvalidate when needed */ 1566076Sgblack@eecs.umich.edu { SET4(IsRead, IsLlsc, IsRequest, NeedsResponse), 1575507Sstever@gmail.com ReadResp, "LoadLockedReq" }, 1584626Sstever@eecs.umich.edu /* StoreCondReq */ 15911284Sandreas.hansson@arm.com { SET6(IsWrite, NeedsWritable, IsLlsc, 1604626Sstever@eecs.umich.edu IsRequest, NeedsResponse, HasData), 1614626Sstever@eecs.umich.edu StoreCondResp, "StoreCondReq" }, 16210325Sgeoffrey.blake@arm.com /* StoreCondFailReq: generates failing StoreCondResp */ 16311284Sandreas.hansson@arm.com { SET6(IsWrite, NeedsWritable, IsLlsc, 1647669Ssteve.reinhardt@amd.com IsRequest, NeedsResponse, HasData), 1657669Ssteve.reinhardt@amd.com StoreCondResp, "StoreCondFailReq" }, 1664626Sstever@eecs.umich.edu /* StoreCondResp */ 16711287Sandreas.hansson@arm.com { SET3(IsWrite, IsLlsc, IsResponse), 1684626Sstever@eecs.umich.edu InvalidCmd, "StoreCondResp" }, 1694040Ssaidi@eecs.umich.edu /* SwapReq -- for Swap ldstub type operations */ 17011284Sandreas.hansson@arm.com { SET6(IsRead, IsWrite, NeedsWritable, IsRequest, HasData, NeedsResponse), 1714040Ssaidi@eecs.umich.edu SwapResp, "SwapReq" }, 1724040Ssaidi@eecs.umich.edu /* SwapResp -- for Swap ldstub type operations */ 17311287Sandreas.hansson@arm.com { SET4(IsRead, IsWrite, IsResponse, HasData), 1744870Sstever@eecs.umich.edu InvalidCmd, "SwapResp" }, 1755650Sgblack@eecs.umich.edu /* IntReq -- for interrupts */ 1765650Sgblack@eecs.umich.edu { SET4(IsWrite, IsRequest, NeedsResponse, HasData), 1776063Sgblack@eecs.umich.edu MessageResp, "MessageReq" }, 1785650Sgblack@eecs.umich.edu /* IntResp -- for interrupts */ 1796063Sgblack@eecs.umich.edu { SET2(IsWrite, IsResponse), InvalidCmd, "MessageResp" }, 18011256Santhony.gutierrez@amd.com /* MemFenceReq -- for synchronization requests */ 18111256Santhony.gutierrez@amd.com {SET2(IsRequest, NeedsResponse), MemFenceResp, "MemFenceReq"}, 18211256Santhony.gutierrez@amd.com /* MemFenceResp -- for synchronization responses */ 18311256Santhony.gutierrez@amd.com {SET1(IsResponse), InvalidCmd, "MemFenceResp"}, 1844870Sstever@eecs.umich.edu /* InvalidDestError -- packet dest field invalid */ 1854986Ssaidi@eecs.umich.edu { SET2(IsResponse, IsError), InvalidCmd, "InvalidDestError" }, 1864870Sstever@eecs.umich.edu /* BadAddressError -- memory address invalid */ 1875314Sstever@gmail.com { SET2(IsResponse, IsError), InvalidCmd, "BadAddressError" }, 1888436SBrad.Beckmann@amd.com /* FunctionalReadError */ 1898436SBrad.Beckmann@amd.com { SET3(IsRead, IsResponse, IsError), InvalidCmd, "FunctionalReadError" }, 1908436SBrad.Beckmann@amd.com /* FunctionalWriteError */ 1918436SBrad.Beckmann@amd.com { SET3(IsWrite, IsResponse, IsError), InvalidCmd, "FunctionalWriteError" }, 1925314Sstever@gmail.com /* PrintReq */ 1938184Ssomayeh@cs.wisc.edu { SET2(IsRequest, IsPrint), InvalidCmd, "PrintReq" }, 1948184Ssomayeh@cs.wisc.edu /* Flush Request */ 19511284Sandreas.hansson@arm.com { SET3(IsRequest, IsFlush, NeedsWritable), InvalidCmd, "FlushReq" }, 1968716Snilay@cs.wisc.edu /* Invalidation Request */ 19711600Sandreas.hansson@arm.com { SET5(IsInvalidate, IsRequest, NeedsWritable, NeedsResponse, FromCache), 19810886Sandreas.hansson@arm.com InvalidateResp, "InvalidateReq" }, 19910886Sandreas.hansson@arm.com /* Invalidation Response */ 20011287Sandreas.hansson@arm.com { SET2(IsInvalidate, IsResponse), 20110886Sandreas.hansson@arm.com InvalidCmd, "InvalidateResp" } 2024022Sstever@eecs.umich.edu}; 2032592SN/A 2043607Srdreslin@umich.edubool 20510028SGiacomo.Gabrielli@arm.comPacket::checkFunctional(Printable *obj, Addr addr, bool is_secure, int size, 20610570Sandreas.hansson@arm.com uint8_t *_data) 2072641Sstever@eecs.umich.edu{ 2084626Sstever@eecs.umich.edu Addr func_start = getAddr(); 2094626Sstever@eecs.umich.edu Addr func_end = getAddr() + getSize() - 1; 2104626Sstever@eecs.umich.edu Addr val_start = addr; 2114626Sstever@eecs.umich.edu Addr val_end = val_start + size - 1; 2123260Ssaidi@eecs.umich.edu 21310028SGiacomo.Gabrielli@arm.com if (is_secure != _isSecure || func_start > val_end || 21410028SGiacomo.Gabrielli@arm.com val_start > func_end) { 2154626Sstever@eecs.umich.edu // no intersection 2164626Sstever@eecs.umich.edu return false; 2174626Sstever@eecs.umich.edu } 2183260Ssaidi@eecs.umich.edu 2195314Sstever@gmail.com // check print first since it doesn't require data 2205314Sstever@gmail.com if (isPrint()) { 22110570Sandreas.hansson@arm.com assert(!_data); 22210376Sandreas.hansson@arm.com safe_cast<PrintReqState*>(senderState)->printObj(obj); 2235314Sstever@gmail.com return false; 2245314Sstever@gmail.com } 2255314Sstever@gmail.com 22610570Sandreas.hansson@arm.com // we allow the caller to pass NULL to signify the other packet 22710570Sandreas.hansson@arm.com // has no data 22810570Sandreas.hansson@arm.com if (!_data) { 2295314Sstever@gmail.com return false; 2305314Sstever@gmail.com } 2315314Sstever@gmail.com 2324626Sstever@eecs.umich.edu // offset of functional request into supplied value (could be 2334626Sstever@eecs.umich.edu // negative if partial overlap) 2344626Sstever@eecs.umich.edu int offset = func_start - val_start; 2353260Ssaidi@eecs.umich.edu 2364626Sstever@eecs.umich.edu if (isRead()) { 2374626Sstever@eecs.umich.edu if (func_start >= val_start && func_end <= val_end) { 23810570Sandreas.hansson@arm.com memcpy(getPtr<uint8_t>(), _data + offset, getSize()); 23910723Sandreas.hansson@arm.com if (bytesValid.empty()) 24010723Sandreas.hansson@arm.com bytesValid.resize(getSize(), true); 24110570Sandreas.hansson@arm.com // complete overlap, and as the current packet is a read 24210570Sandreas.hansson@arm.com // we are done 2434626Sstever@eecs.umich.edu return true; 2443260Ssaidi@eecs.umich.edu } else { 2458668Sgeoffrey.blake@arm.com // Offsets and sizes to copy in case of partial overlap 2468668Sgeoffrey.blake@arm.com int func_offset; 2478668Sgeoffrey.blake@arm.com int val_offset; 2488668Sgeoffrey.blake@arm.com int overlap_size; 2498668Sgeoffrey.blake@arm.com 2508668Sgeoffrey.blake@arm.com // calculate offsets and copy sizes for the two byte arrays 2518668Sgeoffrey.blake@arm.com if (val_start < func_start && val_end <= func_end) { 25210723Sandreas.hansson@arm.com // the one we are checking against starts before and 25310723Sandreas.hansson@arm.com // ends before or the same 2548668Sgeoffrey.blake@arm.com val_offset = func_start - val_start; 2558668Sgeoffrey.blake@arm.com func_offset = 0; 2568668Sgeoffrey.blake@arm.com overlap_size = val_end - func_start; 2578668Sgeoffrey.blake@arm.com } else if (val_start >= func_start && val_end > func_end) { 25810723Sandreas.hansson@arm.com // the one we are checking against starts after or the 25910723Sandreas.hansson@arm.com // same, and ends after 2608668Sgeoffrey.blake@arm.com val_offset = 0; 2618668Sgeoffrey.blake@arm.com func_offset = val_start - func_start; 2628668Sgeoffrey.blake@arm.com overlap_size = func_end - val_start; 2638668Sgeoffrey.blake@arm.com } else if (val_start >= func_start && val_end <= func_end) { 26410723Sandreas.hansson@arm.com // the one we are checking against is completely 26510723Sandreas.hansson@arm.com // subsumed in the current packet, possibly starting 26610723Sandreas.hansson@arm.com // and ending at the same address 2678668Sgeoffrey.blake@arm.com val_offset = 0; 2688668Sgeoffrey.blake@arm.com func_offset = val_start - func_start; 2698668Sgeoffrey.blake@arm.com overlap_size = size; 27010723Sandreas.hansson@arm.com } else if (val_start < func_start && val_end > func_end) { 27110723Sandreas.hansson@arm.com // the current packet is completely subsumed in the 27210723Sandreas.hansson@arm.com // one we are checking against 27310723Sandreas.hansson@arm.com val_offset = func_start - val_start; 27410723Sandreas.hansson@arm.com func_offset = 0; 27510723Sandreas.hansson@arm.com overlap_size = func_end - func_start; 2768668Sgeoffrey.blake@arm.com } else { 27710723Sandreas.hansson@arm.com panic("Missed a case for checkFunctional with " 27810723Sandreas.hansson@arm.com " %s 0x%x size %d, against 0x%x size %d\n", 27910723Sandreas.hansson@arm.com cmdString(), getAddr(), getSize(), addr, size); 2808668Sgeoffrey.blake@arm.com } 2818668Sgeoffrey.blake@arm.com 2828668Sgeoffrey.blake@arm.com // copy partial data into the packet's data array 2838668Sgeoffrey.blake@arm.com uint8_t *dest = getPtr<uint8_t>() + func_offset; 28410570Sandreas.hansson@arm.com uint8_t *src = _data + val_offset; 2858668Sgeoffrey.blake@arm.com memcpy(dest, src, overlap_size); 2868668Sgeoffrey.blake@arm.com 28710723Sandreas.hansson@arm.com // initialise the tracking of valid bytes if we have not 28810723Sandreas.hansson@arm.com // used it already 28910723Sandreas.hansson@arm.com if (bytesValid.empty()) 29010723Sandreas.hansson@arm.com bytesValid.resize(getSize(), false); 29110723Sandreas.hansson@arm.com 29210723Sandreas.hansson@arm.com // track if we are done filling the functional access 29310723Sandreas.hansson@arm.com bool all_bytes_valid = true; 29410723Sandreas.hansson@arm.com 29510723Sandreas.hansson@arm.com int i = 0; 29610723Sandreas.hansson@arm.com 29710723Sandreas.hansson@arm.com // check up to func_offset 29810723Sandreas.hansson@arm.com for (; all_bytes_valid && i < func_offset; ++i) 29910723Sandreas.hansson@arm.com all_bytes_valid &= bytesValid[i]; 30010723Sandreas.hansson@arm.com 30110723Sandreas.hansson@arm.com // update the valid bytes 30210723Sandreas.hansson@arm.com for (i = func_offset; i < func_offset + overlap_size; ++i) 30310723Sandreas.hansson@arm.com bytesValid[i] = true; 30410723Sandreas.hansson@arm.com 30510723Sandreas.hansson@arm.com // check the bit after the update we just made 30610723Sandreas.hansson@arm.com for (; all_bytes_valid && i < getSize(); ++i) 30710723Sandreas.hansson@arm.com all_bytes_valid &= bytesValid[i]; 30810723Sandreas.hansson@arm.com 30910723Sandreas.hansson@arm.com return all_bytes_valid; 3103260Ssaidi@eecs.umich.edu } 3114626Sstever@eecs.umich.edu } else if (isWrite()) { 3124626Sstever@eecs.umich.edu if (offset >= 0) { 31310570Sandreas.hansson@arm.com memcpy(_data + offset, getConstPtr<uint8_t>(), 3145735Snate@binkert.org (min(func_end, val_end) - func_start) + 1); 3155735Snate@binkert.org } else { 3165735Snate@binkert.org // val_start > func_start 31710570Sandreas.hansson@arm.com memcpy(_data, getConstPtr<uint8_t>() - offset, 3185735Snate@binkert.org (min(func_end, val_end) - val_start) + 1); 3193260Ssaidi@eecs.umich.edu } 3205314Sstever@gmail.com } else { 3214626Sstever@eecs.umich.edu panic("Don't know how to handle command %s\n", cmdString()); 3225314Sstever@gmail.com } 3235314Sstever@gmail.com 3245314Sstever@gmail.com // keep going with request by default 3255314Sstever@gmail.com return false; 3262641Sstever@eecs.umich.edu} 3273260Ssaidi@eecs.umich.edu 3285314Sstever@gmail.comvoid 3299542Sandreas.hansson@arm.comPacket::pushSenderState(Packet::SenderState *sender_state) 3309542Sandreas.hansson@arm.com{ 3319542Sandreas.hansson@arm.com assert(sender_state != NULL); 3329542Sandreas.hansson@arm.com sender_state->predecessor = senderState; 3339542Sandreas.hansson@arm.com senderState = sender_state; 3349542Sandreas.hansson@arm.com} 3359542Sandreas.hansson@arm.com 3369542Sandreas.hansson@arm.comPacket::SenderState * 3379542Sandreas.hansson@arm.comPacket::popSenderState() 3389542Sandreas.hansson@arm.com{ 3399542Sandreas.hansson@arm.com assert(senderState != NULL); 3409542Sandreas.hansson@arm.com SenderState *sender_state = senderState; 3419542Sandreas.hansson@arm.com senderState = sender_state->predecessor; 3429542Sandreas.hansson@arm.com sender_state->predecessor = NULL; 3439542Sandreas.hansson@arm.com return sender_state; 3449542Sandreas.hansson@arm.com} 3459542Sandreas.hansson@arm.com 3469542Sandreas.hansson@arm.comvoid 3475735Snate@binkert.orgPacket::print(ostream &o, const int verbosity, const string &prefix) const 3483260Ssaidi@eecs.umich.edu{ 34911744Snikos.nikoleris@arm.com ccprintf(o, "%s%s [%x:%x]%s%s%s%s", prefix, cmdString(), 35011744Snikos.nikoleris@arm.com getAddr(), getAddr() + getSize() - 1, 35111744Snikos.nikoleris@arm.com req->isSecure() ? " (s)" : "", 35211744Snikos.nikoleris@arm.com req->isInstFetch() ? " IF" : "", 35311744Snikos.nikoleris@arm.com req->isUncacheable() ? " UC" : "", 35411744Snikos.nikoleris@arm.com isExpressSnoop() ? " ES" : ""); 3553260Ssaidi@eecs.umich.edu} 3563260Ssaidi@eecs.umich.edu 3579663Suri.wiener@arm.comstd::string 3589663Suri.wiener@arm.comPacket::print() const { 3599663Suri.wiener@arm.com ostringstream str; 3609663Suri.wiener@arm.com print(str); 3619663Suri.wiener@arm.com return str.str(); 3629663Suri.wiener@arm.com} 3639663Suri.wiener@arm.com 3645735Snate@binkert.orgPacket::PrintReqState::PrintReqState(ostream &_os, int _verbosity) 3655735Snate@binkert.org : curPrefixPtr(new string("")), os(_os), verbosity(_verbosity) 3665314Sstever@gmail.com{ 3675314Sstever@gmail.com labelStack.push_back(LabelStackEntry("", curPrefixPtr)); 3685314Sstever@gmail.com} 3695314Sstever@gmail.com 3705314Sstever@gmail.comPacket::PrintReqState::~PrintReqState() 3715314Sstever@gmail.com{ 3725314Sstever@gmail.com labelStack.pop_back(); 3735314Sstever@gmail.com assert(labelStack.empty()); 3745314Sstever@gmail.com delete curPrefixPtr; 3755314Sstever@gmail.com} 3765314Sstever@gmail.com 3775314Sstever@gmail.comPacket::PrintReqState:: 3785735Snate@binkert.orgLabelStackEntry::LabelStackEntry(const string &_label, string *_prefix) 3795314Sstever@gmail.com : label(_label), prefix(_prefix), labelPrinted(false) 3805314Sstever@gmail.com{ 3815314Sstever@gmail.com} 3825314Sstever@gmail.com 3835314Sstever@gmail.comvoid 3845735Snate@binkert.orgPacket::PrintReqState::pushLabel(const string &lbl, const string &prefix) 3855314Sstever@gmail.com{ 3865314Sstever@gmail.com labelStack.push_back(LabelStackEntry(lbl, curPrefixPtr)); 3875735Snate@binkert.org curPrefixPtr = new string(*curPrefixPtr); 3885314Sstever@gmail.com *curPrefixPtr += prefix; 3895314Sstever@gmail.com} 3905314Sstever@gmail.com 3915314Sstever@gmail.comvoid 3925314Sstever@gmail.comPacket::PrintReqState::popLabel() 3935314Sstever@gmail.com{ 3945314Sstever@gmail.com delete curPrefixPtr; 3955314Sstever@gmail.com curPrefixPtr = labelStack.back().prefix; 3965314Sstever@gmail.com labelStack.pop_back(); 3975314Sstever@gmail.com assert(!labelStack.empty()); 3985314Sstever@gmail.com} 3995314Sstever@gmail.com 4005314Sstever@gmail.comvoid 4015314Sstever@gmail.comPacket::PrintReqState::printLabels() 4025314Sstever@gmail.com{ 4035314Sstever@gmail.com if (!labelStack.back().labelPrinted) { 4045314Sstever@gmail.com LabelStack::iterator i = labelStack.begin(); 4055314Sstever@gmail.com LabelStack::iterator end = labelStack.end(); 4065314Sstever@gmail.com while (i != end) { 4075314Sstever@gmail.com if (!i->labelPrinted) { 4085314Sstever@gmail.com ccprintf(os, "%s%s\n", *(i->prefix), i->label); 4095314Sstever@gmail.com i->labelPrinted = true; 4105314Sstever@gmail.com } 4115314Sstever@gmail.com i++; 4125314Sstever@gmail.com } 4135314Sstever@gmail.com } 4145314Sstever@gmail.com} 4155314Sstever@gmail.com 4165314Sstever@gmail.com 4175314Sstever@gmail.comvoid 4185314Sstever@gmail.comPacket::PrintReqState::printObj(Printable *obj) 4195314Sstever@gmail.com{ 4205314Sstever@gmail.com printLabels(); 4215314Sstever@gmail.com obj->print(os, verbosity, curPrefix()); 4225314Sstever@gmail.com} 423