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mem: Assume all dynamic packet data is array allocated

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This patch simplifies how we deal with dynamically allocated data in
the packet, always assuming that it is array allocated, and hence
should be array deallocated (delete[] as opposed to delete). The only
uses of dataDynamic was in the Ruby testers.

The ARRAY_DATA flag in the packet is removed accordingly. No
defragmentation of the flags is done at this point, leaving a gap in
the bit masks.

As the last part the patch, it renames dataDynamicArray to dataDynamic.
This commit is contained in:
Andreas Hansson 2014-12-02 06:07:43 -05:00
parent 5df96cb690
commit 41846cb61b
10 changed files with 21 additions and 42 deletions
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2
src/cpu/minor/lsq.cc
View file

@ -1558,7 +1558,7 @@ makePacketForRequest(Request &request, bool isLoad,
if (isLoad)
ret->allocate();
else
ret->dataDynamicArray(data);
ret->dataDynamic(data);
return ret;
}

2
src/cpu/o3/fetch_impl.hh
View file

@ -669,7 +669,7 @@ DefaultFetch<Impl>::finishTranslation(const Fault &fault, RequestPtr mem_req)
// Build packet here.
PacketPtr data_pkt = new Packet(mem_req, MemCmd::ReadReq);
data_pkt->dataDynamicArray(new uint8_t[fetchBufferSize]);
data_pkt->dataDynamic(new uint8_t[fetchBufferSize]);
fetchBufferPC[tid] = fetchBufferBlockPC;
fetchBufferValid[tid] = false;

4
src/cpu/simple/timing.cc
View file

@ -271,7 +271,7 @@ TimingSimpleCPU::sendData(RequestPtr req, uint8_t *data, uint64_t *res,
{
PacketPtr pkt;
buildPacket(pkt, req, read);
pkt->dataDynamicArray<uint8_t>(data);
pkt->dataDynamic<uint8_t>(data);
if (req->getFlags().isSet(Request::NO_ACCESS)) {
assert(!dcache_pkt);
pkt->makeResponse();
@ -379,7 +379,7 @@ TimingSimpleCPU::buildSplitPacket(PacketPtr &pkt1, PacketPtr &pkt2,
req->setPhys(req1->getPaddr(), req->getSize(), req1->getFlags(), dataMasterId());
PacketPtr pkt = new Packet(req, pkt1->cmd.responseCommand());
pkt->dataDynamicArray<uint8_t>(data);
pkt->dataDynamic<uint8_t>(data);
pkt1->dataStatic<uint8_t>(data);
pkt2->dataStatic<uint8_t>(data + req1->getSize());

4
src/cpu/testers/directedtest/InvalidateGenerator.cc
View file

@ -76,9 +76,7 @@ InvalidateGenerator::initiate()
} else {
panic("initiate was unexpectedly called\n");
}
uint8_t* dummyData = new uint8_t;
*dummyData = 0;
pkt->dataDynamic(dummyData);
pkt->allocate();
if (port->sendTimingReq(pkt)) {
DPRINTF(DirectedTest, "initiating request - successful\n");

4
src/cpu/testers/directedtest/SeriesRequestGenerator.cc
View file

@ -69,9 +69,7 @@ SeriesRequestGenerator::initiate()
}
PacketPtr pkt = new Packet(req, cmd);
uint8_t* dummyData = new uint8_t;
*dummyData = 0;
pkt->dataDynamic(dummyData);
pkt->allocate();
if (port->sendTimingReq(pkt)) {
DPRINTF(DirectedTest, "initiating request - successful\n");

4
src/cpu/testers/memtest/memtest.cc
View file

@ -327,7 +327,7 @@ MemTest::tick()
blockAddr(req->getPaddr()), *result);
PacketPtr pkt = new Packet(req, MemCmd::ReadReq);
pkt->dataDynamicArray(new uint8_t[req->getSize()]);
pkt->dataDynamic(new uint8_t[req->getSize()]);
MemTestSenderState *state = new MemTestSenderState(result);
pkt->senderState = state;
@ -349,7 +349,7 @@ MemTest::tick()
PacketPtr pkt = new Packet(req, MemCmd::WriteReq);
uint8_t *pkt_data = new uint8_t[req->getSize()];
pkt->dataDynamicArray(pkt_data);
pkt->dataDynamic(pkt_data);
memcpy(pkt_data, &data, req->getSize());
MemTestSenderState *state = new MemTestSenderState(result);
pkt->senderState = state;

2
src/cpu/testers/networktest/networktest.cc
View file

@ -261,7 +261,7 @@ NetworkTest::generatePkt()
destination, req->getPaddr());
PacketPtr pkt = new Packet(req, requestType);
pkt->dataDynamicArray(new uint8_t[req->getSize()]);
pkt->dataDynamic(new uint8_t[req->getSize()]);
pkt->senderState = NULL;
sendPkt(pkt);

6
src/cpu/testers/rubytest/Check.cc
View file

@ -113,7 +113,7 @@ Check::initiatePrefetch()
// despite the oddity of the 0 size (questionable if this should
// even be allowed), a prefetch is still a read and as such needs
// a place to store the result
uint8_t *data = new uint8_t;
uint8_t *data = new uint8_t[1];
pkt->dataDynamic(data);
// push the subblock onto the sender state. The sequencer will
@ -192,7 +192,7 @@ Check::initiateAction()
// }
PacketPtr pkt = new Packet(req, cmd);
uint8_t *writeData = new uint8_t;
uint8_t *writeData = new uint8_t[1];
*writeData = m_value + m_store_count;
pkt->dataDynamic(writeData);
@ -246,7 +246,7 @@ Check::initiateCheck()
req->setThreadContext(index, 0);
PacketPtr pkt = new Packet(req, MemCmd::ReadReq);
uint8_t *dataArray = new uint8_t[CHECK_SIZE];
pkt->dataDynamicArray(dataArray);
pkt->dataDynamic(dataArray);
// push the subblock onto the sender state. The sequencer will
// update the subblock on the return

2
src/cpu/testers/traffic_gen/generators.cc
View file

@ -62,7 +62,7 @@ BaseGen::getPacket(Addr addr, unsigned size, const MemCmd& cmd,
PacketPtr pkt = new Packet(req, cmd);
uint8_t* pkt_data = new uint8_t[req->getSize()];
pkt->dataDynamicArray(pkt_data);
pkt->dataDynamic(pkt_data);
if (cmd.isWrite()) {
memset(pkt_data, 0xA, req->getSize());

33
src/mem/packet.hh
View file

@ -247,11 +247,9 @@ class Packet : public Printable
/// when the packet is destroyed?
static const FlagsType STATIC_DATA = 0x00001000;
/// The data pointer points to a value that should be freed when
/// the packet is destroyed.
/// the packet is destroyed. The pointer is assumed to be pointing
/// to an array, and delete [] is consequently called
static const FlagsType DYNAMIC_DATA = 0x00002000;
/// the data pointer points to an array (thus delete []) needs to
/// be called on it rather than simply delete.
static const FlagsType ARRAY_DATA = 0x00004000;
/// suppress the error if this packet encounters a functional
/// access failure.
static const FlagsType SUPPRESS_FUNC_ERROR = 0x00008000;
@ -813,7 +811,7 @@ class Packet : public Printable
void
dataStatic(T *p)
{
assert(flags.noneSet(STATIC_DATA|DYNAMIC_DATA|ARRAY_DATA));
assert(flags.noneSet(STATIC_DATA|DYNAMIC_DATA));
data = (PacketDataPtr)p;
flags.set(STATIC_DATA);
}
@ -830,7 +828,7 @@ class Packet : public Printable
void
dataStaticConst(const T *p)
{
assert(flags.noneSet(STATIC_DATA|DYNAMIC_DATA|ARRAY_DATA));
assert(flags.noneSet(STATIC_DATA|DYNAMIC_DATA));
data = const_cast<PacketDataPtr>(p);
flags.set(STATIC_DATA);
}
@ -841,22 +839,9 @@ class Packet : public Printable
*/
template <typename T>
void
dataDynamicArray(T *p)
{
assert(flags.noneSet(STATIC_DATA|DYNAMIC_DATA|ARRAY_DATA));
data = (PacketDataPtr)p;
flags.set(DYNAMIC_DATA|ARRAY_DATA);
}
/**
* set the data pointer to a value that should have delete called
* on it.
*/
template <typename T>
void
dataDynamic(T *p)
{
assert(flags.noneSet(STATIC_DATA|DYNAMIC_DATA|ARRAY_DATA));
assert(flags.noneSet(STATIC_DATA|DYNAMIC_DATA));
data = (PacketDataPtr)p;
flags.set(DYNAMIC_DATA);
}
@ -938,12 +923,10 @@ class Packet : public Printable
void
deleteData()
{
if (flags.isSet(ARRAY_DATA))
if (flags.isSet(DYNAMIC_DATA))
delete [] data;
else if (flags.isSet(DYNAMIC_DATA))
delete data;
flags.clear(STATIC_DATA|DYNAMIC_DATA|ARRAY_DATA);
flags.clear(STATIC_DATA|DYNAMIC_DATA);
data = NULL;
}
@ -952,7 +935,7 @@ class Packet : public Printable
allocate()
{
assert(flags.noneSet(STATIC_DATA|DYNAMIC_DATA));
flags.set(DYNAMIC_DATA|ARRAY_DATA);
flags.set(DYNAMIC_DATA);
data = new uint8_t[getSize()];
}