Add HSA_CU_MASK

New environment variable HSA_CU_MASK allows users to
specify a cu mask to every queue allocated from any
GPU.  hsa_amd_queue_cu_set_mask is restricted from
escaping this mask.

A new API hsa_amd_queue_cu_get_mask is added to query
the current cu mask.

Change-Id: I846c03a5faaca9b95067c31db84b59cc9fce2f03


[ROCm/ROCR-Runtime commit: 4455250be1]

projects/rocr-runtime/runtime/hsa-runtime/core/common/hsa_table_interface.cpp

@@ -926,6 +926,12 @@ hsa_status_t HSA_API hsa_amd_queue_cu_set_mask(const hsa_queue_t* queue,
                                      queue, num_cu_mask_count, cu_mask);
 }
 
+// Mirrors Amd Extension Apis
+hsa_status_t HSA_API hsa_amd_queue_cu_get_mask(const hsa_queue_t* queue, uint32_t num_cu_mask_count,
+                                               uint32_t* cu_mask) {
+  return amdExtTable->hsa_amd_queue_cu_get_mask_fn(queue, num_cu_mask_count, cu_mask);
+}
+
 // Mirrors Amd Extension Apis
 hsa_status_t HSA_API
     hsa_amd_memory_pool_get_info(hsa_amd_memory_pool_t memory_pool,