P4 to Git Change 1533784 by vsytchen@vsytchen-ocl-win10 on 2018/03/28 11:22:25

SWDEV-133818 - PAL support for Linux Pro: Coarse Grain SVM for OpenCL 2.0

	This change enables Fine/Coarse Grain Buffer SVM suballocations for PAL devices

	ReviewBoardURL = http://ocltc.amd.com/reviews/r/14486/diff/

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palresource.cpp#57 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palresource.hpp#20 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/context.cpp#48 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/context.hpp#28 edit

rocclr/runtime/platform/context.cpp

@@ -296,6 +296,7 @@ void* Context::svmAlloc(size_t size, size_t alignment, cl_svm_mem_flags flags) {
     void* svmPtrAlloced = NULL;
     void* tempPtr = NULL;
 
+    amd::ScopedLock lock(&ctxLock_);
     for (const auto& dev : svmAllocDevice_) {
       if (dev->type() == CL_DEVICE_TYPE_GPU) {
         // check if the device support svm platform atomics,
@@ -320,6 +321,7 @@ void Context::svmFree(void* ptr) const {
     return;
   }
 
+  amd::ScopedLock lock(&ctxLock_);
   for (const auto& dev : svmAllocDevice_) {
     if (dev->type() == CL_DEVICE_TYPE_GPU) {
       dev->svmFree(ptr);