AIESW-26391:Fix eff_net hip testcase failure.

Support computed addresses (base + offset) for global memory arguments
to enable pointer arithmetic use cases like sub-buffer access.

Detect offset in global arguments and pass raw pointer to preserve
computed addresses (base + offset), otherwise pass buffer object
for proper memory tracking.

Previously, extracting the buffer object would return only the base
address, breaking computed addresses like: wts_base + (offset[i] * 4)

Signed-off-by: Srikanth Vuppala <120363307+svup-xilinx@users.noreply.github.com>

Author: svup-xilinx

src/runtime_src/hip/core/event.cpp

@@ -255,14 +255,22 @@ kernel_start::kernel_start(std::shared_ptr<function> f, void** args)
         break;
 
       case karg::argtype::global: {
+        // Handle both base buffer addresses and computed addresses (base + offset).
+        // If offset is non-zero, pass raw pointer to preserve computed address.
+        // If offset is zero, pass buffer object for proper memory management.
         void **bufptr = static_cast<void **>(args[idx]);
-        auto hip_mem = memory_database::instance().get_hip_mem_from_addr(*bufptr).first;
+        auto hip_mem_info = memory_database::instance().get_hip_mem_from_addr(*bufptr);
+        auto hip_mem = hip_mem_info.first;
         if (!hip_mem) {
-            std::string err_msg = "failed to get memory from arg at index - " + std::to_string(idx);
-	    throw_hip_error(hipErrorInvalidValue, err_msg.c_str());
-	}
+          std::string err_msg = "failed to get memory from arg at index - " + std::to_string(idx);
+          throw_hip_error(hipErrorInvalidValue, err_msg.c_str());
+        }
+
+        if (hip_mem_info.second)
+          r.set_arg(static_cast<int>(arg->index), *bufptr);
+        else
+          r.set_arg(static_cast<int>(arg->index), hip_mem->get_xrt_bo());
 
-        r.set_arg(arg->index, hip_mem->get_xrt_bo());
         break;
       }
       case karg::argtype::constant :