1 files changed, 89 insertions, 0 deletions
diff --git a/offload/DeviceRTL/src/Configuration.cpp b/offload/DeviceRTL/src/Configuration.cpp
new file mode 100644
index 000000000000..ef0c3663536f
--- /dev/null
+++ b/offload/DeviceRTL/src/Configuration.cpp
@@ -0,0 +1,89 @@
+//===- Configuration.cpp - OpenMP device configuration interface -- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the data object of the constant device environment and the
+// query API.
+//
+//===----------------------------------------------------------------------===//
+
+#include "Configuration.h"
+#include "State.h"
+#include "Types.h"
+
+using namespace ompx;
+
+#pragma omp begin declare target device_type(nohost)
+
+// Weak definitions will be overridden by CGOpenmpRuntimeGPU if enabled.
+[[gnu::weak]] extern const uint32_t __omp_rtl_debug_kind = 0;
+[[gnu::weak]] extern const uint32_t __omp_rtl_assume_no_thread_state = 0;
+[[gnu::weak]] extern const uint32_t __omp_rtl_assume_no_nested_parallelism = 0;
+[[gnu::weak]] extern const uint32_t __omp_rtl_assume_threads_oversubscription =
+    0;
+[[gnu::weak]] extern const uint32_t __omp_rtl_assume_teams_oversubscription = 0;
+
+// This variable should be visibile to the plugin so we override the default
+// hidden visibility.
+[[gnu::used, gnu::retain, gnu::weak,
+  gnu::visibility("protected")]] DeviceEnvironmentTy
+    CONSTANT(__omp_rtl_device_environment);
+
+uint32_t config::getAssumeTeamsOversubscription() {
+  return __omp_rtl_assume_teams_oversubscription;
+}
+
+uint32_t config::getAssumeThreadsOversubscription() {
+  return __omp_rtl_assume_threads_oversubscription;
+}
+
+uint32_t config::getDebugKind() {
+  return __omp_rtl_debug_kind & __omp_rtl_device_environment.DeviceDebugKind;
+}
+
+uint32_t config::getNumDevices() {
+  return __omp_rtl_device_environment.NumDevices;
+}
+
+uint32_t config::getDeviceNum() {
+  return __omp_rtl_device_environment.DeviceNum;
+}
+
+uint64_t config::getDynamicMemorySize() {
+  return __omp_rtl_device_environment.DynamicMemSize;
+}
+
+uint64_t config::getClockFrequency() {
+  return __omp_rtl_device_environment.ClockFrequency;
+}
+
+void *config::getIndirectCallTablePtr() {
+  return reinterpret_cast<void *>(
+      __omp_rtl_device_environment.IndirectCallTable);
+}
+
+uint64_t config::getHardwareParallelism() {
+  return __omp_rtl_device_environment.HardwareParallelism;
+}
+
+uint64_t config::getIndirectCallTableSize() {
+  return __omp_rtl_device_environment.IndirectCallTableSize;
+}
+
+bool config::isDebugMode(DeviceDebugKind Kind) {
+  return config::getDebugKind() & uint32_t(Kind);
+}
+
+bool config::mayUseThreadStates() { return !__omp_rtl_assume_no_thread_state; }
+
+bool config::mayUseNestedParallelism() {
+  if (__omp_rtl_assume_no_nested_parallelism)
+    return false;
+  return state::getKernelEnvironment().Configuration.MayUseNestedParallelism;
+}
+
+#pragma omp end declare target