P4 to Git Change 1084677 by xcui@merged_opencl_jxcwin on 2014/10/06 17:48:09

EPR #406328 - made more changes so that the OpenCL can run 2.0 devices on the first 2.0 capable device and OpenCL 1.2 on the rest of devices if they can suppport. Also uncommented an assert accidently commted by the previous check in.
	this is the OpenCL part of checkin.

	Prechecking:
	http://ocltc.amd.com:8111/viewModification.html?modId=40944&personal=true&buildTypeId=&tab=vcsModificationBuilds&show_all_builds=true

	code review:
	http://ocltc.amd.com/reviews/r/5987/

Affected files ...

... //depot/stg/opencl/drivers/opencl/api/opencl/amdocl/cl_svm.cpp#6 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpusettings.cpp#288 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/context.cpp#31 edit

rocclr/runtime/platform/context.cpp

@@ -39,7 +39,9 @@ Context::Context(
                     "is allowed per context");
             customHostAllocDevice_ = device;
         }
-        if (device->customSvmAllocator()) {
+        if (device->customSvmAllocator()
+            && (customSvmAllocDevice_ == NULL))
+        {
             customSvmAllocDevice_ = device;
         }
     }