cpu: Added interface for vector reg file

This patch adds some more functionality to the cpu model and the arch to
interface with the vector register file.

This change consists mainly of augmenting ThreadContexts and ExecContexts
with calls to get/set full vectors, underlying microarchitectural elements
or lanes. Those are meant to interface with the vector register file. All
classes that implement this interface also get an appropriate implementation.

This requires implementing the vector register file for the different
models using the VecRegContainer class.

This change set also updates the Result abstraction to contemplate the
possibility of having a vector as result.

The changes also affect how the remote_gdb connection works.

There are some (nasty) side effects, such as the need to define dummy
numPhysVecRegs parameter values for architectures that do not implement
vector extensions.

Nathanael Premillieu's work with an increasing number of fixes and
improvements of mine.

Change-Id: Iee65f4e8b03abfe1e94e6940a51b68d0977fd5bb
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
[ Fix RISCV build issues and CC reg free list initialisation ]
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2705

1 files changed, 3 insertions, 1 deletions

diff --git a/src/arch/arm/remote_gdb.hh b/src/arch/arm/remote_gdb.hh
index acd6f32d2..328fbadb3 100644
--- a/src/arch/arm/remote_gdb.hh
+++ b/src/arch/arm/remote_gdb.hh
@@ -1,7 +1,7 @@
 /*
  * Copyright 2015 LabWare
  * Copyright 2014 Google, Inc.
- * Copyright (c) 2013 ARM Limited
+ * Copyright (c) 2013, 2016 ARM Limited
  * All rights reserved
  *
  * The license below extends only to copyright in the software and shall
@@ -51,6 +51,7 @@
 #include <algorithm>
 
 #include "arch/arm/utility.hh"
+#include "arch/generic/vec_reg.hh"
 #include "base/remote_gdb.hh"
 
 class System;
@@ -96,6 +97,7 @@ class RemoteGDB : public BaseRemoteGDB
           uint64_t pc;
           uint64_t cpsr;
           uint32_t v[32*4];
+          ArmISA::VecRegContainer vec[32];
         } r;
       public:
         char *data() const { return (char *)&r; }