SWDEV-301667 - Fix SDMA mask reuse

If we are using the mask returned by getLastUsedSdmaEngine() then we
need to apply the SDMA Read/Write mask to it before using with HSA
copy_on_engine API.

Change-Id: I6e5dc6c187eeb3c61ee159e9d2a0fa7b4737c06e


[ROCm/clr commit: 3f0bcf7834]

projects/clr/rocclr/device/rocm/rocdevice.cpp

@@ -3473,6 +3473,12 @@ uint32_t Device::fetchSDMAMask(const device::BlitManager* handle, bool readEngin
   return (readEngine ? maxSdmaReadMask_ : maxSdmaWriteMask_) & engine;
 }
 
+// ================================================================================================
+void Device::getSdmaRWMasks(uint32_t* readMask, uint32_t* writeMask) const {
+  *readMask = maxSdmaReadMask_;
+  *writeMask = maxSdmaWriteMask_;
+}
+
 // ================================================================================================
 void Device::resetSDMAMask(const device::BlitManager* handle) const {
   amd::ScopedLock lock(vgpusAccess());