mem: Remove threadId from memory request class

In general, the ThreadID parameter is unnecessary in the memory system
as the ContextID is what is used for the purposes of locks/wakeups.
Since we allocate sequential ContextIDs for each thread on MT-enabled
CPUs, ThreadID is unnecessary as the CPUs can identify the requesting
thread through sideband info (SenderState / LSQ entries) or ContextID
offset from the base ContextID for a cpu.

This is a re-spin of 20264eb after the revert (bd1c6789) and includes
some fixes of that commit.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/cpu/base_dyn_inst.hh b/src/cpu/base_dyn_inst.hh
index 031337aec..e846f6790 100644
--- a/src/cpu/base_dyn_inst.hh
+++ b/src/cpu/base_dyn_inst.hh
@@ -886,7 +886,7 @@ BaseDynInst<Impl>::initiateMemRead(Addr addr, unsigned size, unsigned flags)
         sreqHigh = savedSreqHigh;
     } else {
         req = new Request(asid, addr, size, flags, masterId(), this->pc.instAddr(),
-                          thread->contextId(), threadNumber);
+                          thread->contextId());
 
         req->taskId(cpu->taskId());
 
@@ -942,7 +942,7 @@ BaseDynInst<Impl>::writeMem(uint8_t *data, unsigned size,
         sreqHigh = savedSreqHigh;
     } else {
         req = new Request(asid, addr, size, flags, masterId(), this->pc.instAddr(),
-                          thread->contextId(), threadNumber);
+                          thread->contextId());
 
         req->taskId(cpu->taskId());