P4 to Git Change 1112144 by gandryey@gera-dev-w7 on 2015/01/15 17:50:43

ECR #304775 - Move GPU wait outside of the device lock operation for staging buffers
	- Wait can occur per queue independently

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpudevice.cpp#491 edit

rocclr/runtime/device/gpu/gpudevice.cpp

@@ -357,11 +357,11 @@ Device::XferBuffers::acquire()
 void
 Device::XferBuffers::release(VirtualGPU& gpu, Resource& buffer)
 {
-    // Lock the operations with the staged buffer list
-    amd::ScopedLock  l(lock_);
     // Make sure buffer isn't busy on the current VirtualGPU, because
     // the next aquire can come from different queue
     buffer.wait(gpu);
+    // Lock the operations with the staged buffer list
+    amd::ScopedLock  l(lock_);
     freeBuffers_.push_back(&buffer);
     --acquiredCnt_;
 }