From: Mitch Hayenga <mitch.hayenga@arm.com>
Date: Wed, 30 Sep 2015 16:14:19 +0000 (-0500)
Subject: arm: SMT MPIDR Setting
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e255fa053f8d105de8d188077a318124a3aad9ce;p=gem5.git

arm: SMT MPIDR Setting

Changes assignment of the MPIDR for multi-threaded systems only.
---

diff --git a/src/arch/arm/utility.cc b/src/arch/arm/utility.cc
index 34fcfd482..bedd4a0b0 100644
--- a/src/arch/arm/utility.cc
+++ b/src/arch/arm/utility.cc
@@ -210,7 +210,10 @@ getMPIDR(ArmSystem *arm_sys, ThreadContext *tc)
     // for simulation of larger systems
     assert((0 <= tc->cpuId()) && (tc->cpuId() < 256));
     assert((0 <= tc->socketId()) && (tc->socketId() < 65536));
-    if (arm_sys->multiProc) {
+    if (arm_sys->multiThread) {
+       return 0x80000000 | // multiprocessor extensions available
+              tc->contextId();
+    } else if (arm_sys->multiProc) {
        return 0x80000000 | // multiprocessor extensions available
               tc->cpuId() | tc->socketId() << 8;
     } else {