Use usable range only for device allocations

Author: sophimao

src/acl_device.cpp

@@ -331,9 +331,19 @@ CL_API_ENTRY cl_int CL_API_CALL clGetDeviceInfoIntelFPGA(
           ACL_GLOBAL_MEM_DEVICE_PRIVATE) {
         global_mem_size += ACL_RANGE_SIZE(
             device->def.autodiscovery_def.global_mem_defs[gmem_idx].range);
-        cl_ulong curr_size = ACL_RANGE_SIZE(
-            device->def.autodiscovery_def.global_mem_defs[gmem_idx]
-                .get_usable_range());
+        cl_ulong curr_size = 0;
+        // TODO: investigate if ACL_MEM_ALIGN of 0x400 is still required to
+        //       perform device allocations to memory with 0 starting address
+        if (device->def.autodiscovery_def.global_mem_defs[gmem_idx]
+                .allocation_type &
+            ACL_GLOBAL_MEM_DEVICE_ALLOCATION) {
+          curr_size = ACL_RANGE_SIZE(
+              device->def.autodiscovery_def.global_mem_defs[gmem_idx]
+                  .get_usable_range());
+        } else {
+          curr_size = ACL_RANGE_SIZE(
+              device->def.autodiscovery_def.global_mem_defs[gmem_idx].range);
+        }
         if (curr_size > size) {
           size = curr_size;
         }