misc: Using smart pointers for memory Requests

This patch is changing the underlying type for RequestPtr from Request*
to shared_ptr<Request>. Having memory requests being managed by smart
pointers will simplify the code; it will also prevent memory leakage and
dangling pointers.

Change-Id: I7749af38a11ac8eb4d53d8df1252951e0890fde3
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/10996
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/arch/generic/tlb.cc b/src/arch/generic/tlb.cc
index 807f06dab..aebdd4bfe 100644
--- a/src/arch/generic/tlb.cc
+++ b/src/arch/generic/tlb.cc
@@ -37,7 +37,7 @@
 #include "sim/process.hh"
 
 Fault
-GenericTLB::translateAtomic(RequestPtr req, ThreadContext *tc, Mode)
+GenericTLB::translateAtomic(const RequestPtr &req, ThreadContext *tc, Mode)
 {
     if (FullSystem)
         panic("Generic translation shouldn't be used in full system mode.\n");
@@ -52,7 +52,7 @@ GenericTLB::translateAtomic(RequestPtr req, ThreadContext *tc, Mode)
 }
 
 void
-GenericTLB::translateTiming(RequestPtr req, ThreadContext *tc,
+GenericTLB::translateTiming(const RequestPtr &req, ThreadContext *tc,
         Translation *translation, Mode mode)
 {
     assert(translation);
@@ -60,7 +60,8 @@ GenericTLB::translateTiming(RequestPtr req, ThreadContext *tc,
 }
 
 Fault
-GenericTLB::finalizePhysical(RequestPtr req, ThreadContext *tc, Mode mode) const
+GenericTLB::finalizePhysical(const RequestPtr &req, ThreadContext *tc,
+                             Mode mode) const
 {
     return NoFault;
 }