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//===--- Configuration.h - 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
//
//===----------------------------------------------------------------------===//
//
// API to query the global (constant) device environment.
//
//===----------------------------------------------------------------------===//
#ifndef OMPTARGET_CONFIGURATION_H
#define OMPTARGET_CONFIGURATION_H
#include "Shared/Environment.h"
#include "DeviceTypes.h"
namespace ompx {
namespace config {
/// Return the number of devices in the system, same number as returned on the
/// host by omp_get_num_devices.
uint32_t getNumDevices();
/// Return the device number in the system for omp_get_device_num.
uint32_t getDeviceNum();
/// Return the user chosen debug level.
uint32_t getDebugKind();
/// Return if teams oversubscription is assumed
uint32_t getAssumeTeamsOversubscription();
/// Return if threads oversubscription is assumed
uint32_t getAssumeThreadsOversubscription();
/// Return the amount of dynamic shared memory that was allocated at launch.
uint64_t getDynamicMemorySize();
/// Returns the cycles per second of the device's fixed frequency clock.
uint64_t getClockFrequency();
/// Returns the pointer to the beginning of the indirect call table.
void *getIndirectCallTablePtr();
/// Returns the size of the indirect call table.
uint64_t getIndirectCallTableSize();
/// Returns the size of the indirect call table.
uint64_t getHardwareParallelism();
/// Return if debugging is enabled for the given debug kind.
bool isDebugMode(DeviceDebugKind Level);
/// Indicates if this kernel may require thread-specific states, or if it was
/// explicitly disabled by the user.
bool mayUseThreadStates();
/// Indicates if this kernel may require data environments for nested
/// parallelism, or if it was explicitly disabled by the user.
bool mayUseNestedParallelism();
} // namespace config
} // namespace ompx
#endif
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