P4 to Git Change 1349980 by cpaquot@hog-ocl on 2016/12/06 11:22:18

SWDEV-107442, SWDEV-108405 - Need to release GPU memory fence before releasing resources
	When we call submitKernelInternal, we need to release GPU memory fence before release resources used in the kernel otherwise we can page fault.

	ReviewBoardURL = http://ocltc.amd.com/reviews/r/11955/diff/

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocblit.cpp#5 edit

rocclr/runtime/device/rocm/rocblit.cpp

@@ -1257,6 +1257,9 @@ KernelBlitManager::copyImageToBuffer(
   address parameters = kernels_[blitType]->parameters().capture(dev_);
   bool result = gpu().submitKernelInternal(ndrange, *kernels_[blitType],
                                            parameters, NULL);
+
+  gpu().releaseGpuMemoryFence();
+
   kernels_[blitType]->parameters().release(const_cast<address>(parameters),
                                            dev_);
 
@@ -1372,6 +1375,9 @@ bool KernelBlitManager::copyBufferToImage(device::Memory& srcMemory,
   address parameters = kernels_[blitType]->parameters().capture(dev_);
   bool result = gpu().submitKernelInternal(ndrange, *kernels_[blitType],
                                            parameters, NULL);
+
+  gpu().releaseGpuMemoryFence();
+
   kernels_[blitType]->parameters().release(const_cast<address>(parameters),
                                            dev_);