On Sat, Aug 15, 2020 at 9:54 PM ABD ALRHMAN ABO ALKHEEL <abdkeel...@hotmail.com> wrote: > > Hi Ciro, > > Could you tell me where can i find the file that does an ifetch for > AtomicsimpleCPU in gem5? >
https://github.com/gem5/gem5/blob/fa70478413e4650d0058cbfe81fd5ce362101994/src/cpu/simple/atomic.cc#L673 up to sendFetch below (find Atomic file source and grep :-) ) Some notes also under: https://cirosantilli.com/linux-kernel-module-cheat/#gem5-packet-vs-request > Also, How to print the data from the packet (I assumed the loaded data is > stored in the pkt). > should I use > pkt->getRaw<uint8_t>() > or > pkt->getLE<uint8_t>() > or > pkt->getBE<uint8_t>() > or > pkt->setData<uint8_t>() > or > pkt->writeData<uint8_t>() > Have a look at the source under Eclipse :-) all of those get the packet data with small variations, but it is raw binary. To see it as hex you need to convert binary to ASCII hex first. I want to push a simple patch for this in the near future, but you can do it manually easily too for now: https://stackoverflow.com/a/27173017/895245 > Thanks > > ________________________________ > From: Ciro Santilli <ciro.santi...@gmail.com> > Sent: Wednesday, August 12, 2020 7:18 AM > To: gem5 users mailing list <gem5-users@gem5.org> > Cc: Ahmed, Md Rubel <mdrubelah...@usf.edu>; ABD ALRHMAN ABO ALKHEEL > <abdkeel...@hotmail.com> > Subject: Re: [gem5-users] Re: Memory Addresses in Gem5 > > I recommend that you have a look at the source of how AtomicSimpleCPU > does an ifetch under Eclipse. It should be easy to understand > everything quickly from there. > > The Packet address is physical (which notably what caches and DRAM > work on), just have a look at the constructor of packet: > > Packet(const RequestPtr &_req, MemCmd _cmd) > : cmd(_cmd), id((PacketId)_req.get()), req(_req), > data(nullptr), addr(0), _isSecure(false), size(0), > _qosValue(0), headerDelay(0), snoopDelay(0), > payloadDelay(0), senderState(NULL) > { > if (req->hasPaddr()) { > addr = req->getPaddr(); > > So you have to do translation before. Translation sets the physical > address on the Request, which contains both _paddr and _vaddr fields. > > Another option is to have a look at how some of the memory tests are doing it. > > On Wed, Aug 12, 2020 at 1:55 AM ABD ALRHMAN ABO ALKHEEL via gem5-users > <gem5-users@gem5.org> wrote: > > > > Hi, > > > > Thank you for your email. > > > > Do you have any idea how to construct a packet with a request to read from > > the memory address? For instance, let us assume that the address that I > > want to read the data from it is (0x2345), I want to read the 256 bytes of > > this address (0x2300-0x23ff)? I want to do that for debugging like this > > https://www.gem5.org/_pages/static/scripts/part2/memoryobject/simple_memobj.cc. > > > > Any help would be appreciated. > > > > Thanks > > > > ________________________________ > > From: Ahmed, Md Rubel via gem5-users <gem5-users@gem5.org> > > Sent: Wednesday, August 12, 2020 12:44 AM > > To: gem5 users mailing list <gem5-users@gem5.org> > > Cc: Ahmed, Md Rubel <mdrubelah...@usf.edu> > > Subject: [gem5-users] Re: Memory Addresses in Gem5 > > > > Hi, > > > > pkt->getAddr() returns memory address. pkt->print() also returns block > > address and offset. > > > > Thanks > > ________________________________ > > From: ABD ALRHMAN ABO ALKHEEL via gem5-users <gem5-users@gem5.org> > > Sent: Tuesday, August 11, 2020 6:32 PM > > To: gem5 users mailing list <gem5-users@gem5.org>; gem5-users > > <gem5-users-boun...@gem5.org> > > Cc: ABD ALRHMAN ABO ALKHEEL <abdkeel...@hotmail.com> > > Subject: [gem5-users] Memory Addresses in Gem5 > > > > Hi All, > > > > Does the packet in gem5 have the memory address? for example, does this > > pkt->getAddr() return the memory address or not? If so, is that address > > physical or virtual? > > > > Thanks > > > > [EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the > > sender and know the content is safe. > > > > _______________________________________________ > > gem5-users mailing list -- gem5-users@gem5.org > > To unsubscribe send an email to gem5-users-le...@gem5.org > > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email to gem5-users-le...@gem5.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
