Move to a model with a unified request object.

Constructor takes a bool to signify that it is either a cpu_request or not a cpu_request.
When accedding variables of a cpu_request it asserts that it is a cpu_request.
It also asserts that a value being read has been written at some point in time prior (not gaurnteeing it is up to date, but it was at least written before read).

There is also a isCpuReq() function to determine if this is a cpu_request.  It should be called before accesing a cpu_request only variable.

SConscript:
    Add compilation support for request.cc
arch/alpha/tlb.cc:
arch/alpha/tlb.hh:
cpu/cpu_exec_context.hh:
cpu/exec_context.hh:
cpu/simple/cpu.cc:
cpu/simple/cpu.hh:
dev/io_device.cc:
mem/page_table.cc:
mem/page_table.hh:
mem/port.cc:
    Update for unified request object and accessor functions.
mem/request.hh:
    Remove CpuRequest, make it a unified object.  Make variables private with accessor functions.

    May want to move things from .cc file into header (usually a assert() and either returning a value, or writting two).

--HG--
extra : convert_revision : f1e45cc490dadc7a418634539b03c3e72684a6e3

1 files changed, 6 insertions, 6 deletions

diff --git a/cpu/simple/cpu.hh b/cpu/simple/cpu.hh
index 43287a33b..11137b6e6 100644
--- a/cpu/simple/cpu.hh
+++ b/cpu/simple/cpu.hh
@@ -210,12 +210,12 @@ class SimpleCPU : public BaseCPU
 #if SIMPLE_CPU_MEM_TIMING
     Packet *retry_pkt;
 #elif SIMPLE_CPU_MEM_ATOMIC || SIMPLE_CPU_MEM_IMMEDIATE
-    CpuRequest *ifetch_req;
-    Packet     *ifetch_pkt;
-    CpuRequest *data_read_req;
-    Packet     *data_read_pkt;
-    CpuRequest *data_write_req;
-    Packet     *data_write_pkt;
+    Request *ifetch_req;
+    Packet  *ifetch_pkt;
+    Request *data_read_req;
+    Packet  *data_read_pkt;
+    Request *data_write_req;
+    Packet  *data_write_pkt;
 #endif
 
     // Pointer to the sampler that is telling us to switchover.