mem: Set the cache line size on a system level

This patch removes the notion of a peer block size and instead sets
the cache line size on the system level.

Previously the size was set per cache, and communicated through the
interconnect. There were plenty checks to ensure that everyone had the
same size specified, and these checks are now removed. Another benefit
that is not yet harnessed is that the cache line size is now known at
construction time, rather than after the port binding. Hence, the
block size can be locally stored and does not have to be queried every
time it is used.

A follow-on patch updates the configuration scripts accordingly.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/cpu/thread_state.cc b/src/cpu/thread_state.cc
index d0f946989..7953b53c8 100644
--- a/src/cpu/thread_state.cc
+++ b/src/cpu/thread_state.cc
@@ -110,7 +110,8 @@ ThreadState::initMemProxies(ThreadContext *tc)
         // This cannot be done in the constructor as the thread state
         // itself is created in the base cpu constructor and the
         // getDataPort is a virtual function
-        physProxy = new PortProxy(baseCpu->getDataPort());
+        physProxy = new PortProxy(baseCpu->getDataPort(),
+                                  baseCpu->cacheLineSize());
 
         assert(virtProxy == NULL);
         virtProxy = new FSTranslatingPortProxy(tc);