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author | Anthony Gutierrez <atgutier@umich.edu> | 2012-08-15 10:38:08 -0400 |
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committer | Anthony Gutierrez <atgutier@umich.edu> | 2012-08-15 10:38:08 -0400 |
commit | 0b3897fc90901953e9d016466c37ab507f85023c (patch) | |
tree | 0e8b1fec8d7c4871686903d573e9fd0fd8734d1e /src/dev/copy_engine.cc | |
parent | 5a648f2074caad8aee97e03f27e8eecc527a2cba (diff) | |
download | gem5-0b3897fc90901953e9d016466c37ab507f85023c.tar.xz |
O3,ARM: fix some problems with drain/switchout functionality and add Drain DPRINTFs
This patch fixes some problems with the drain/switchout functionality
for the O3 cpu and for the ARM ISA and adds some useful debug print
statements.
This is an incremental fix as there are still a few bugs/mem leaks with the
switchout code. Particularly when switching from an O3CPU to a
TimingSimpleCPU. However, when switching from O3 to O3 cores with the ARM ISA
I haven't encountered any more assertion failures; now the kernel will
typically panic inside of simulation.
Diffstat (limited to 'src/dev/copy_engine.cc')
-rw-r--r-- | src/dev/copy_engine.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/dev/copy_engine.cc b/src/dev/copy_engine.cc index 809649718..bb15abab6 100644 --- a/src/dev/copy_engine.cc +++ b/src/dev/copy_engine.cc @@ -49,6 +49,7 @@ #include "base/cp_annotate.hh" #include "base/trace.hh" #include "debug/DMACopyEngine.hh" +#include "debug/Drain.hh" #include "dev/copy_engine.hh" #include "mem/packet.hh" #include "mem/packet_access.hh" @@ -638,7 +639,7 @@ bool CopyEngine::CopyEngineChannel::inDrain() { if (ce->getState() == SimObject::Draining) { - DPRINTF(DMACopyEngine, "processing drain\n"); + DPRINTF(Drain, "CopyEngine done draining, processing drain event\n"); assert(drainEvent); drainEvent->process(); drainEvent = NULL; @@ -655,7 +656,7 @@ CopyEngine::CopyEngineChannel::drain(Event *de) unsigned int count = 1; count += cePort.drain(de); - DPRINTF(DMACopyEngine, "unable to drain, returning %d\n", count); + DPRINTF(Drain, "CopyEngineChannel not drained\n"); drainEvent = de; return count; } @@ -673,7 +674,7 @@ CopyEngine::drain(Event *de) else changeState(Drained); - DPRINTF(DMACopyEngine, "call to CopyEngine::drain() returning %d\n", count); + DPRINTF(Drain, "CopyEngine not drained\n"); return count; } |