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authorNathan Binkert <nate@binkert.org>2007-08-12 09:56:37 -0700
committerNathan Binkert <nate@binkert.org>2007-08-12 09:56:37 -0700
commit64295b800fd67e9b9bb3eee0131511a71ddf1fdb (patch)
treeed1c759f11384dd2c263b43d7842be2922c5c39d /src/mem/bridge.cc
parentb92594dd90f54a892771989a8164148e6647c9ab (diff)
parentec4000e0e284834df0eb1db792074a1b11f21cc8 (diff)
downloadgem5-64295b800fd67e9b9bb3eee0131511a71ddf1fdb.tar.xz
merge
--HG-- extra : convert_revision : 5866eaa4008c4fa5da7fbb443132b8326955f71d
Diffstat (limited to 'src/mem/bridge.cc')
-rw-r--r--src/mem/bridge.cc33
1 files changed, 7 insertions, 26 deletions
diff --git a/src/mem/bridge.cc b/src/mem/bridge.cc
index 6cfa5a2ac..c502c5130 100644
--- a/src/mem/bridge.cc
+++ b/src/mem/bridge.cc
@@ -37,6 +37,7 @@
#include <algorithm>
+#include "base/range_ops.hh"
#include "base/trace.hh"
#include "mem/bridge.hh"
#include "params/Bridge.hh"
@@ -44,9 +45,10 @@
Bridge::BridgePort::BridgePort(const std::string &_name,
Bridge *_bridge, BridgePort *_otherPort,
int _delay, int _nack_delay, int _req_limit,
- int _resp_limit, bool fix_partial_write)
+ int _resp_limit,
+ std::vector<Range<Addr> > filter_ranges)
: Port(_name), bridge(_bridge), otherPort(_otherPort),
- delay(_delay), nackDelay(_nack_delay), fixPartialWrite(fix_partial_write),
+ delay(_delay), nackDelay(_nack_delay), filterRanges(filter_ranges),
outstandingResponses(0), queuedRequests(0), inRetry(false),
reqQueueLimit(_req_limit), respQueueLimit(_resp_limit), sendEvent(this)
{
@@ -55,9 +57,9 @@ Bridge::BridgePort::BridgePort(const std::string &_name,
Bridge::Bridge(Params *p)
: MemObject(p->name),
portA(p->name + "-portA", this, &portB, p->delay, p->nack_delay,
- p->req_size_a, p->resp_size_a, p->fix_partial_write_a),
+ p->req_size_a, p->resp_size_a, p->filter_ranges_a),
portB(p->name + "-portB", this, &portA, p->delay, p->nack_delay,
- p->req_size_b, p->resp_size_b, p->fix_partial_write_b),
+ p->req_size_b, p->resp_size_b, p->filter_ranges_b),
ackWrites(p->write_ack), _params(p)
{
if (ackWrites)
@@ -243,17 +245,6 @@ Bridge::BridgePort::trySend()
PacketPtr pkt = buf->pkt;
- // Ugly! @todo When multilevel coherence works this will be removed
- if (pkt->cmd == MemCmd::WriteInvalidateReq && fixPartialWrite &&
- !pkt->wasNacked()) {
- PacketPtr funcPkt = new Packet(pkt->req, MemCmd::WriteReq,
- Packet::Broadcast);
- funcPkt->dataStatic(pkt->getPtr<uint8_t>());
- sendFunctional(funcPkt);
- pkt->cmd = MemCmd::WriteReq;
- delete funcPkt;
- }
-
DPRINTF(BusBridge, "trySend: origSrc %d dest %d addr 0x%x\n",
buf->origSrc, pkt->getDest(), pkt->getAddr());
@@ -313,17 +304,6 @@ Bridge::BridgePort::recvRetry()
Tick
Bridge::BridgePort::recvAtomic(PacketPtr pkt)
{
- // fix partial atomic writes... similar to the timing code that does the
- // same... will be removed once our code gets this right
- if (pkt->cmd == MemCmd::WriteInvalidateReq && fixPartialWrite) {
-
- PacketPtr funcPkt = new Packet(pkt->req, MemCmd::WriteReq,
- Packet::Broadcast);
- funcPkt->dataStatic(pkt->getPtr<uint8_t>());
- otherPort->sendFunctional(funcPkt);
- delete funcPkt;
- pkt->cmd = MemCmd::WriteReq;
- }
return delay + otherPort->sendAtomic(pkt);
}
@@ -355,6 +335,7 @@ Bridge::BridgePort::getDeviceAddressRanges(AddrRangeList &resp,
bool &snoop)
{
otherPort->getPeerAddressRanges(resp, snoop);
+ FilterRangeList(filterRanges, resp);
// we don't allow snooping across bridges
snoop = false;
}