| //===- 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 |