P4 to Git Change 2010800 by axie@axie-hip-vdi-pal2 on 2019/10/09 12:09:28

SWDEV-198862 - Options for hip-clang-vdi path to provide the chicken bits, or functional equivalents to HCC_OPT_FLUSH
	Add HCC_OPT_FLUSH flag to use fence scope agent when possible for HIP VDI. The flag is defaulted to turn on, similiar to HIP HCC.
	Add AMD_OCL_OPT_FLUSH to use fence scope agent when possible for OpenCL. This was tested in Windows and PAL. Default is off.
	This flag can be used for future OpenCL test.

	Tests:
	1. http://ocltc.amd.com:8111/viewModification.html?modId=127189&personal=true&tab=vcsModificationBuilds
	The teamcity test includes HIP - VDI - Rocm tests.
	2. VEGA10 , Windows, HIP, 110 hiptests PASS.
	3. VEGA10 , Linux AMDGPU PRO, HIP - PAL, 110 hiptests PASS.

	Newer:
	http://ocltc.amd.com:8111/viewModification.html?modId=127193&personal=true&tab=vcsModificationBuilds

	Reviewboard:  http://ocltc.amd.com/reviews/r/18092/

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/device.cpp#247 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/device.hpp#342 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocvirtual.cpp#89 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocvirtual.hpp#29 edit
... //depot/stg/opencl/drivers/opencl/runtime/utils/flags.hpp#321 edit

rocclr/runtime/device/device.cpp

@@ -624,6 +624,8 @@ Settings::Settings() : value_(0) {
   if (amd::IS_HIP) {
     GPU_SINGLE_ALLOC_PERCENT = 100;
   }
+
+  fenceScopeAgent_ = AMD_OPT_FLUSH;
 }
 
 void Memory::saveMapInfo(const void* mapAddress, const amd::Coord3D origin,