Add getter for individual GPU configKeyValues

Author: davidrohr

GPU/GPUTracking/Interface/GPUO2InterfaceConfiguration.inc

@@ -0,0 +1,28 @@
+// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+// All rights not expressly granted are reserved.
+//
+// This software is distributed under the terms of the GNU General Public
+// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+/// \file GPUO2InterfaceConfiguration.inc
+/// \author David Rohr
+
+#ifndef GPUO2INTERFACECONFIGURATIONINC_H
+#define GPUO2INTERFACECONFIGURATIONINC_H
+
+#include "GPUDefMacros.h"
+#include "GPUO2InterfaceConfiguration.h"
+#include "GPUO2ConfigurableParam.h"
+#include <type_traits>
+
+#define GPU_GET_CONFIG(configName) []() -> decltype(auto) {                            \
+  static_assert(!std::is_same_v<o2::gpu::configName, o2::gpu::GPUSettingsProcessing>); \
+  return GPUCA_M_CAT(GPUConfigurableParam, configName)::Instance();                    \
+}()
+
+#endif