From 9529795fab8778b8e9bfbbe8704a991dea039c44 Mon Sep 17 00:00:00 2001
From: foreman <dl.swbuild@amd.com>
Date: Sat, 16 Nov 2019 17:25:59 -0500
Subject: [PATCH] P4 to Git Change 2031768 by cpaquot@cpaquot-ocl-lc-lnx on
 2019/11/16 17:21:58

	SWDEV-212440 - [HIP] Memory access fault observed on Pytorch while running performance tests with Microbenchmarking script
	We need to loop through all the default stream to sync them in case
	the app call hipFree on a different current stream and another current stream
	is using the memory.

Affected files ...

... //depot/stg/opencl/drivers/opencl/api/hip/hip_memory.cpp#85 edit
---
 api/hip/hip_memory.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/api/hip/hip_memory.cpp b/api/hip/hip_memory.cpp
index a9dcd5b55c..a249397605 100644
--- a/api/hip/hip_memory.cpp
+++ b/api/hip/hip_memory.cpp
@@ -209,7 +209,9 @@ hipError_t hipFree(void* ptr) {
   }
   if (amd::SvmBuffer::malloced(ptr)) {
     hip::syncStreams();
-    hip::getNullStream()->finish();
+    for (size_t i=0; i<g_devices.size(); ++i) {
+      hip::getNullStream(*g_devices[i])->finish();
+    }
     amd::SvmBuffer::free(*hip::getCurrentContext(), ptr);
     HIP_RETURN(hipSuccess);
   }