Implement a very very simple bus

requestTime -> time
responseTime -> packet.time

Make CPU and memory able to connect to the bus

dev/io_device.cc:
    update for request and packet both having a time
    hand platform off to port for eventual selection of request modes
dev/io_device.hh:
    update for request and packet both havig a time
    hand platform off to port for eventual selection of request modes
mem/bus.hh:
    Add a device map struct that maps a range to a portId
    - Which needs work it theory it should be an interval tree
    - but it is a list and works fine right now

    Add a function called findPort which returns port for an addr range

    Add a deviceBlockSize function that really shouldn't exist, but it
    was easier than fixing the translating port
mem/packet.hh:
    add a time to each packet
mem/physical.cc:
mem/physical.hh:
python/m5/objects/PhysicalMemory.py:
    Make physical memory take a MemObject parameter of what to connect to
mem/request.hh:
    remove requestTime/responseTime for just time in request which
    is requset time and the time in the packet which is responsetime
python/m5/objects/BaseCPU.py:
    Instead of memory cpu connects to any memory object
python/m5/objects/Bus.py:
    Fix for new bus object

--HG--
extra : convert_revision : 72605e8a3fcdd9e80a41f439909ee7feb3f1fe1d

1 files changed, 6 insertions, 1 deletions

diff --git a/mem/physical.hh b/mem/physical.hh
index b066d3dfc..2087bf763 100644
--- a/mem/physical.hh
+++ b/mem/physical.hh
@@ -69,6 +69,8 @@ class PhysicalMemory : public MemObject
         virtual int deviceBlockSize();
     };
 
+    MemoryPort memPort;
+
     virtual Port * getPort(const char *if_name);
 
     int numPorts;
@@ -101,11 +103,13 @@ class PhysicalMemory : public MemObject
     uint64_t size() { return pmem_size; }
 
   public:
-    PhysicalMemory(const std::string &n);
+    PhysicalMemory(const std::string &n, MemObject *bus);
     virtual ~PhysicalMemory();
 
   public:
     int deviceBlockSize();
+    void getAddressRanges(AddrRangeList &rangeList, bool &owner);
+    void virtual init() { memPort.sendStatusChange(Port::RangeChange); }
 
     // fast back-door memory access for vtophys(), remote gdb, etc.
     // uint64_t phys_read_qword(Addr addr) const;
@@ -119,6 +123,7 @@ class PhysicalMemory : public MemObject
   public:
     virtual void serialize(std::ostream &os);
     virtual void unserialize(Checkpoint *cp, const std::string &section);
+
 };
 
 /*uint64_t