mem: Rename Bus to XBar to better reflect its behaviour

This patch changes the name of the Bus classes to XBar to better
reflect the actual timing behaviour. The actual instances in the
config scripts are not renamed, and remain as e.g. iobus or membus.

As part of this renaming, the code has also been clean up slightly,
making use of range-based for loops and tidying up some comments. The
only changes outside the bus/crossbar code is due to the delay
variables in the packet.

--HG--
rename : src/mem/Bus.py => src/mem/XBar.py
rename : src/mem/coherent_bus.cc => src/mem/coherent_xbar.cc
rename : src/mem/coherent_bus.hh => src/mem/coherent_xbar.hh
rename : src/mem/noncoherent_bus.cc => src/mem/noncoherent_xbar.cc
rename : src/mem/noncoherent_bus.hh => src/mem/noncoherent_xbar.hh
rename : src/mem/bus.cc => src/mem/xbar.cc
rename : src/mem/bus.hh => src/mem/xbar.hh

1 files changed, 4 insertions, 4 deletions

diff --git a/src/mem/physical.cc b/src/mem/physical.cc
index 1b76b52e8..08ec83410 100644
--- a/src/mem/physical.cc
+++ b/src/mem/physical.cc
@@ -51,7 +51,7 @@
 #include <string>
 
 #include "base/trace.hh"
-#include "debug/BusAddrRanges.hh"
+#include "debug/AddrRanges.hh"
 #include "debug/Checkpoint.hh"
 #include "mem/abstract_mem.hh"
 #include "mem/physical.hh"
@@ -79,7 +79,7 @@ PhysicalMemory::PhysicalMemory(const string& _name,
                 fatal("Memory address range for %s is overlapping\n",
                       (*m)->name());
         } else {
-            DPRINTF(BusAddrRanges,
+            DPRINTF(AddrRanges,
                     "Skipping memory %s that is not in global address map\n",
                     (*m)->name());
             // this type of memory is used e.g. as reference memory by
@@ -144,7 +144,7 @@ PhysicalMemory::createBackingStore(AddrRange range,
               range.to_string());
 
     // perform the actual mmap
-    DPRINTF(BusAddrRanges, "Creating backing store for range %s with size %d\n",
+    DPRINTF(AddrRanges, "Creating backing store for range %s with size %d\n",
             range.to_string(), range.size());
     int map_flags = MAP_ANON | MAP_PRIVATE;
     uint8_t* pmem = (uint8_t*) mmap(NULL, range.size(),
@@ -164,7 +164,7 @@ PhysicalMemory::createBackingStore(AddrRange range,
     // point the memories to their backing store
     for (vector<AbstractMemory*>::const_iterator m = _memories.begin();
          m != _memories.end(); ++m) {
-        DPRINTF(BusAddrRanges, "Mapping memory %s to backing store\n",
+        DPRINTF(AddrRanges, "Mapping memory %s to backing store\n",
                 (*m)->name());
         (*m)->setBackingStore(pmem);
     }