P4 to Git Change 1094478 by xcui@merged_opencl_jxcwin on 2014/11/06 14:40:09

EPR #408459 - added an env variable OCL_FORCE_CPU_SVM in the runtime, so that the svm feature for CPU can be enabled manually even for non OpenCL 2.0 support for CPU device.
	code review:
	http://ocltc.amd.com/reviews/r/6190/

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/cpu/cpudevice.cpp#268 edit
... //depot/stg/opencl/drivers/opencl/runtime/utils/flags.hpp#218 edit

rocclr/runtime/device/cpu/cpudevice.cpp

@@ -266,7 +266,7 @@ Device::init()
 
     info.executionCapabilities_ = CL_EXEC_KERNEL | CL_EXEC_NATIVE_KERNEL;
     // Enable SVM only for OpenCL 2.0
-    if ((OPENCL_MAJOR >= 2) && (CPU_OPENCL_VERSION >= 200)) {
+    if (((OPENCL_MAJOR >= 2) && (CPU_OPENCL_VERSION >= 200)) || OCL_FORCE_CPU_SVM) {
         info.svmCapabilities_ = CL_DEVICE_SVM_COARSE_GRAIN_BUFFER |
                 CL_DEVICE_SVM_FINE_GRAIN_BUFFER |
                 CL_DEVICE_SVM_FINE_GRAIN_SYSTEM |