[gem5-dev] [M] Change in gem5/gem5[develop]: mem: Implemement backdoor interface for Bridge

[Yu-hsin Wang (Gerrit) via gem5-dev]

Yu-hsin Wang has uploaded this change for review. (  
https://gem5-review.googlesource.com/c/public/gem5/+/67291?usp=email )

Change subject: mem: Implemement backdoor interface for Bridge
......................................................................

mem: Implemement backdoor interface for Bridge

Change-Id: I5ff62b03c34e41395a957a0799925ddd9c275458
---
M src/mem/bridge.cc
M src/mem/bridge.hh
2 files changed, 44 insertions(+), 8 deletions(-)



diff --git a/src/mem/bridge.cc b/src/mem/bridge.cc
index 0f744f7..36832eb 100644
--- a/src/mem/bridge.cc
+++ b/src/mem/bridge.cc
@@ -347,6 +347,14 @@
     return delay * bridge.clockPeriod() + memSidePort.sendAtomic(pkt);
 }

+Tick
+Bridge::BridgeResponsePort::recvAtomicBackdoor(
+    PacketPtr pkt, MemBackdoorPtr &backdoor)
+{
+    return delay * bridge.clockPeriod() + memSidePort.sendAtomicBackdoor(
+        pkt, backdoor);
+}
+
 void
 Bridge::BridgeResponsePort::recvFunctional(PacketPtr pkt)
 {
@@ -371,6 +379,13 @@
     memSidePort.sendFunctional(pkt);
 }

+void
+Bridge::BridgeResponsePort::recvMemBackdoorReq(
+    const MemBackdoorReq &req, MemBackdoorPtr &backdoor)
+{
+    memSidePort.sendMemBackdoorReq(req, backdoor);
+}
+
 bool
 Bridge::BridgeRequestPort::trySatisfyFunctional(PacketPtr pkt)
 {
diff --git a/src/mem/bridge.hh b/src/mem/bridge.hh
index f56cef1..e4a6837 100644
--- a/src/mem/bridge.hh
+++ b/src/mem/bridge.hh
@@ -195,23 +195,35 @@

         /** When receiving a timing request from the peer port,
             pass it to the bridge. */
-        bool recvTimingReq(PacketPtr pkt);
+        bool recvTimingReq(PacketPtr pkt) override;

         /** When receiving a retry request from the peer port,
             pass it to the bridge. */
-        void recvRespRetry();
+        void recvRespRetry() override;

-        /** When receiving a Atomic requestfrom the peer port,
+        /** When receiving an Atomic request from the peer port,
             pass it to the bridge. */
-        Tick recvAtomic(PacketPtr pkt);
+        Tick recvAtomic(PacketPtr pkt) override;
+
+        /** When receiving an Atomic backdoor request from the peer port,
+            pass it to the bridge. */
+        Tick recvAtomicBackdoor(
+            PacketPtr pkt, MemBackdoorPtr &backdoor) override;
+

         /** When receiving a Functional request from the peer port,
             pass it to the bridge. */
-        void recvFunctional(PacketPtr pkt);
+        void recvFunctional(PacketPtr pkt) override;
+
+        /** When receiving a Functional backdoor request from the peer  
port,
+            pass it to the bridge. */
+        void recvMemBackdoorReq(
+            const MemBackdoorReq &req, MemBackdoorPtr &backdoor) override;
+

         /** When receiving a address range request the peer port,
             pass it to the bridge. */
-        AddrRangeList getAddrRanges() const;
+        AddrRangeList getAddrRanges() const override;
     };


@@ -303,11 +315,11 @@

         /** When receiving a timing request from the peer port,
             pass it to the bridge. */
-        bool recvTimingResp(PacketPtr pkt);
+        bool recvTimingResp(PacketPtr pkt) override;

         /** When receiving a retry request from the peer port,
             pass it to the bridge. */
-        void recvReqRetry();
+        void recvReqRetry() override;
     };

     /** Response port of the bridge. */

--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I5ff62b03c34e41395a957a0799925ddd9c275458
Gerrit-Change-Number: 67291
Gerrit-PatchSet: 1
Gerrit-Owner: Yu-hsin Wang <yuhsi...@google.com>
Gerrit-MessageType: newchange
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