cpu: rename the misleading inSyscall to noSquashFromTC

isSyscall was originally created because during handling of a syscall in SE
mode the threadcontext had to be updated. However, in many places this is used
in FS mode (e.g. fault handlers) and the name doesn't make much sense. The
boolean actually stops gem5 from squashing speculative and non-committed state
when a write to a threadcontext happens, so re-name the variable to something
more appropriate

1 files changed, 5 insertions, 5 deletions

diff --git a/src/cpu/o3/cpu.cc b/src/cpu/o3/cpu.cc
index bc5f096e6..c5421302d 100644
--- a/src/cpu/o3/cpu.cc
+++ b/src/cpu/o3/cpu.cc
@@ -644,9 +644,9 @@ FullO3CPU<Impl>::init()
     BaseCPU::init();
 
     for (ThreadID tid = 0; tid < numThreads; ++tid) {
-        // Set inSyscall so that the CPU doesn't squash when initially
+        // Set noSquashFromTC so that the CPU doesn't squash when initially
         // setting up registers.
-        thread[tid]->inSyscall = true;
+        thread[tid]->noSquashFromTC = true;
         // Initialise the ThreadContext's memory proxies
         thread[tid]->initMemProxies(thread[tid]->getTC());
     }
@@ -665,9 +665,9 @@ FullO3CPU<Impl>::init()
         }
     }
 
-    // Clear inSyscall.
+    // Clear noSquashFromTC.
     for (int tid = 0; tid < numThreads; ++tid)
-        thread[tid]->inSyscall = false;
+        thread[tid]->noSquashFromTC = false;
 
     // Initialize stages.
     fetch.initStage();
@@ -1464,7 +1464,7 @@ template <class Impl>
 void
 FullO3CPU<Impl>::squashFromTC(ThreadID tid)
 {
-    this->thread[tid]->inSyscall = true;
+    this->thread[tid]->noSquashFromTC = true;
     this->commit.generateTCEvent(tid);
 }