P4 to Git Change 1367969 by gandryey@gera-lnx-rcf-lc on 2017/02/01 11:53:10

SWDEV-112171 - [ROCm CQE][OCLonLC][QR][G] System hangs/Failures observed with few WF conf tests, due to CL#1364923
	- Disable ROCr copy buffer and use runtime kernel to avoid  HW hangs in integer_ops.

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/blit.hpp#3 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocblit.cpp#12 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocvirtual.cpp#29 edit

rocclr/runtime/device/rocm/rocblit.cpp

@@ -2106,8 +2106,9 @@ KernelBlitManager::copyBuffer(
     amd::ScopedLock k(lockXferOps_);
     bool    result = false;
 
-    if (!gpuMem(srcMemory).isHostMemDirectAccess() &&
-        !gpuMem(dstMemory).isHostMemDirectAccess()) {
+    if (setup_.disableHwlCopyBuffer_ ||
+        (!gpuMem(srcMemory).isHostMemDirectAccess() &&
+         !gpuMem(dstMemory).isHostMemDirectAccess())) {
         uint    blitType = BlitCopyBuffer;
         size_t  dim = 1;
         size_t  globalWorkOffset[3] = { 0, 0, 0 };