mem: Add a ThreadContext helper constructor for PortProxy.

This creates a sendFunctionalFunc which calls the tc->sendFunctional.

Change-Id: I97ac2fb52d4f61420a09b37d70d4745c779234c1
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45863
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/mem/port_proxy.cc

@@ -38,6 +38,18 @@
 #include "mem/port_proxy.hh"
 
 #include "base/chunk_generator.hh"
+#include "cpu/thread_context.hh"
+#include "mem/port.hh"
+
+PortProxy::PortProxy(ThreadContext *tc, unsigned int cache_line_size) :
+    PortProxy([tc](PacketPtr pkt)->void { tc->sendFunctional(pkt); },
+        cache_line_size)
+{}
+
+PortProxy::PortProxy(const RequestPort &port, unsigned int cache_line_size) :
+    PortProxy([&port](PacketPtr pkt)->void { port.sendFunctional(pkt); },
+        cache_line_size)
+{}
 
 void
 PortProxy::readBlobPhys(Addr addr, Request::Flags flags,

src/mem/port_proxy.hh

@@ -60,9 +60,12 @@
 #include <functional>
 #include <limits>
 
-#include "mem/port.hh"
+#include "mem/protocol/functional.hh"
 #include "sim/byteswap.hh"
 
+class RequestPort;
+class ThreadContext;
+
 /**
  * This object is a proxy for a port or other object which implements the
  * functional response protocol, to be used for debug accesses.
@@ -97,16 +100,15 @@ class PortProxy : FunctionalRequestProtocol
     }
 
   public:
-    PortProxy(SendFunctionalFunc func, unsigned int cacheLineSize) :
-        sendFunctional(func), _cacheLineSize(cacheLineSize)
+    PortProxy(SendFunctionalFunc func, unsigned int cache_line_size) :
+        sendFunctional(func), _cacheLineSize(cache_line_size)
     {}
-    PortProxy(const RequestPort &port, unsigned int cacheLineSize) :
-        sendFunctional([&port](PacketPtr pkt)->void {
-                port.sendFunctional(pkt);
-            }), _cacheLineSize(cacheLineSize)
-    {}
-    virtual ~PortProxy() { }
 
+    // Helpers which create typical SendFunctionalFunc-s from other objects.
+    PortProxy(ThreadContext *tc, unsigned int cache_line_size);
+    PortProxy(const RequestPort &port, unsigned int cache_line_size);
+
+    virtual ~PortProxy() {}
 
 
     /** Fixed functionality for use in base classes. */