mem-ruby: Support for mem commands in the Sequencer

The isPhysMemAddress checks if a valid memory address
refers to physical memory. This can't be used for memory
commands a they don't hold a valid address/size

Change-Id: Ib39c759aa90ab50ffe2036b5f0ae17627f57e5f5
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/58510
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/ruby/system/RubyPort.cc

@@ -268,8 +268,7 @@ RubyPort::MemResponsePort::recvTimingReq(PacketPtr pkt)
     // Check for pio requests and directly send them to the dedicated
     // pio port.
     if (pkt->cmd != MemCmd::MemSyncReq) {
-        if (!isPhysMemAddress(pkt)) {
-            assert(!pkt->req->isHTMCmd());
+        if (!pkt->req->isMemMgmt() && !isPhysMemAddress(pkt)) {
             assert(ruby_port->memRequestPort.isConnected());
             DPRINTF(RubyPort, "Request address %#x assumed to be a "
                     "pio address\n", pkt->getAddr());