P4 to Git Change 1345883 by gandryey@gera-w8 on 2016/11/24 17:31:06

SWDEV-102801 - OpenCL on PAL - mGPU SVM support
	- Update SVM path to use existent cache coherency logic for MGPU

Affected files ...

... //depot/stg/opencl/drivers/opencl/api/opencl/amdocl/cl_memobj.cpp#80 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpudevice.cpp#560 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpumemory.cpp#130 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuvirtual.cpp#409 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/paldevice.cpp#38 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palkernel.cpp#25 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palmemory.cpp#8 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palvirtual.cpp#39 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/memory.cpp#123 edit

rocclr/runtime/platform/memory.cpp

@@ -459,6 +459,10 @@ Memory::signalWrite(const Device* writer)
     // section needed)
     ++version_;
     lastWriter_ = writer;
+    // Update all subbuffers for this object
+    for (auto buf : subBuffers_) {
+        buf->signalWrite(writer);
+    }
 }
 
 void