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authorAli Saidi <saidi@eecs.umich.edu>2007-05-09 22:34:54 -0400
committerAli Saidi <saidi@eecs.umich.edu>2007-05-09 22:34:54 -0400
commit9dfbea68a204ca93ef9d20a13dd2fe7288121c75 (patch)
tree50c8b08d03f16b0450b2da4247babf9dae7a7e20
parentff55888575af9e661697882736741ea6d4613303 (diff)
downloadgem5-9dfbea68a204ca93ef9d20a13dd2fe7288121c75.tar.xz
update for new reschedule semantics
--HG-- extra : convert_revision : 8c18b2513d638f67cc096e7f1483b47390a374ca
-rw-r--r--src/dev/i8254xGBe.cc16
-rw-r--r--src/dev/io_device.cc5
-rw-r--r--src/dev/ns_gige.cc5
-rw-r--r--src/dev/sinic.cc5
-rw-r--r--src/sim/eventq.hh17
-rw-r--r--src/sim/pseudo_inst.cc10
6 files changed, 21 insertions, 37 deletions
diff --git a/src/dev/i8254xGBe.cc b/src/dev/i8254xGBe.cc
index e54249dee..680e31656 100644
--- a/src/dev/i8254xGBe.cc
+++ b/src/dev/i8254xGBe.cc
@@ -727,12 +727,8 @@ IGbE::RxDescCache::pktComplete()
if (igbe->regs.rdtr.delay()) {
DPRINTF(EthernetSM, "RXS: Scheduling DTR for %d\n",
igbe->regs.rdtr.delay() * igbe->intClock());
- if (igbe->rdtrEvent.scheduled())
- igbe->rdtrEvent.reschedule(curTick + igbe->regs.rdtr.delay() *
- igbe->intClock());
- else
- igbe->rdtrEvent.schedule(curTick + igbe->regs.rdtr.delay() *
- igbe->intClock());
+ igbe->rdtrEvent.reschedule(curTick + igbe->regs.rdtr.delay() *
+ igbe->intClock(),true);
}
if (igbe->regs.radv.idv() && igbe->regs.rdtr.delay()) {
@@ -946,12 +942,8 @@ IGbE::TxDescCache::pktComplete()
DPRINTF(EthernetDesc, "Descriptor had IDE set\n");
if (igbe->regs.tidv.idv()) {
DPRINTF(EthernetDesc, "setting tidv\n");
- if (igbe->tidvEvent.scheduled())
- igbe->tidvEvent.reschedule(curTick + igbe->regs.tidv.idv() *
- igbe->intClock());
- else
- igbe->tidvEvent.schedule(curTick + igbe->regs.tidv.idv() *
- igbe->intClock());
+ igbe->tidvEvent.reschedule(curTick + igbe->regs.tidv.idv() *
+ igbe->intClock(), true);
}
if (igbe->regs.tadv.idv() && igbe->regs.tidv.idv()) {
diff --git a/src/dev/io_device.cc b/src/dev/io_device.cc
index 9384c4b92..d430ace72 100644
--- a/src/dev/io_device.cc
+++ b/src/dev/io_device.cc
@@ -111,10 +111,7 @@ DmaPort::recvTiming(PacketPtr pkt)
else if (backoffTime < device->maxBackoffDelay)
backoffTime <<= 1;
- if (backoffEvent.scheduled())
- backoffEvent.reschedule(curTick + backoffTime);
- else
- backoffEvent.schedule(curTick + backoffTime);
+ backoffEvent.reschedule(curTick + backoffTime, true);
DPRINTF(DMA, "Backoff time set to %d ticks\n", backoffTime);
diff --git a/src/dev/ns_gige.cc b/src/dev/ns_gige.cc
index bec1fb848..d9985f808 100644
--- a/src/dev/ns_gige.cc
+++ b/src/dev/ns_gige.cc
@@ -2310,10 +2310,7 @@ NSGigE::transferDone()
DPRINTF(Ethernet, "transfer complete: data in txFifo...schedule xmit\n");
- if (txEvent.scheduled())
- txEvent.reschedule(curTick + cycles(1));
- else
- txEvent.schedule(curTick + cycles(1));
+ txEvent.reschedule(curTick + cycles(1), true);
}
bool
diff --git a/src/dev/sinic.cc b/src/dev/sinic.cc
index 1a72652da..420761620 100644
--- a/src/dev/sinic.cc
+++ b/src/dev/sinic.cc
@@ -1199,10 +1199,7 @@ Device::transferDone()
DPRINTF(Ethernet, "transfer complete: data in txFifo...schedule xmit\n");
- if (txEvent.scheduled())
- txEvent.reschedule(curTick + cycles(1));
- else
- txEvent.schedule(curTick + cycles(1));
+ txEvent.reschedule(curTick + cycles(1), true);
}
bool
diff --git a/src/sim/eventq.hh b/src/sim/eventq.hh
index a57e9077e..974313968 100644
--- a/src/sim/eventq.hh
+++ b/src/sim/eventq.hh
@@ -210,7 +210,8 @@ class Event : public Serializable, public FastAlloc
void schedule(Tick t);
/// Reschedule the event with the current priority
- void reschedule(Tick t);
+ // always parameter means to schedule if not already scheduled
+ void reschedule(Tick t, bool always = false);
/// Remove the event from the current schedule
void deschedule();
@@ -402,16 +403,22 @@ Event::deschedule()
}
inline void
-Event::reschedule(Tick t)
+Event::reschedule(Tick t, bool always)
{
- assert(scheduled());
- clearFlags(Squashed);
+ assert(scheduled() || always);
#if TRACING_ON
when_scheduled = curTick;
#endif
_when = t;
- queue->reschedule(this);
+
+ if (scheduled()) {
+ clearFlags(Squashed);
+ queue->reschedule(this);
+ } else {
+ setFlags(Scheduled);
+ queue->schedule(this);
+ }
}
inline void
diff --git a/src/sim/pseudo_inst.cc b/src/sim/pseudo_inst.cc
index 56a779674..10127aa5f 100644
--- a/src/sim/pseudo_inst.cc
+++ b/src/sim/pseudo_inst.cc
@@ -87,10 +87,7 @@ namespace PseudoInst
Tick resume = curTick + Clock::Int::ns * ns;
- if (quiesceEvent->scheduled())
- quiesceEvent->reschedule(resume);
- else
- quiesceEvent->schedule(resume);
+ quiesceEvent->reschedule(resume, true);
DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n",
tc->getCpuPtr()->name(), ns, resume);
@@ -110,10 +107,7 @@ namespace PseudoInst
Tick resume = curTick + tc->getCpuPtr()->cycles(cycles);
- if (quiesceEvent->scheduled())
- quiesceEvent->reschedule(resume);
- else
- quiesceEvent->schedule(resume);
+ quiesceEvent->reschedule(resume, true);
DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n",
tc->getCpuPtr()->name(), cycles, resume);