P4 to Git Change 1476364 by gandryey@gera-w8 on 2017/10/30 14:40:10

SWDEV-79445 - Add logic to handle persistent memory separately from the host memory path
	- Some of the optimizations applied to the host memory can't be used for persistent

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocblit.cpp#20 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocmemory.cpp#30 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocmemory.hpp#10 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocvirtual.cpp#45 edit


[ROCm/clr commit: c2105d8f16]

projects/clr/rocclr/runtime/device/rocm/rocvirtual.cpp

@@ -1188,6 +1188,8 @@ void VirtualGPU::submitMapMemory(amd::MapMemoryCommand& cmd) {
       // Add memory to VA cache, so rutnime can detect direct access to VA
       dev().addVACache(devMemory);
     }
+  } else if (devMemory->IsPersistentDirectMap()) {
+    // Persistent memory - NOP map
   } else if (mapFlag & (CL_MAP_READ | CL_MAP_WRITE)) {
     bool result = false;
     roc::Memory* hsaMemory = static_cast<roc::Memory*>(devMemory);
@@ -1266,6 +1268,8 @@ void VirtualGPU::submitUnmapMemory(amd::UnmapMemoryCommand& cmd) {
       // Remove memory from VA cache
       dev().removeVACache(devMemory);
     }
+  } else if (devMemory->IsPersistentDirectMap()) {
+    // Persistent memory - NOP unmap
   } else if (mapInfo->isUnmapWrite()) {
     // Commit the changes made by the user.
     if (!devMemory->isHostMemDirectAccess()) {