| //===-- amdgcn_locks.hip - AMDGCN OpenMP GPU lock implementation -- HIP -*-===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // A 'thread' maps onto a lane of the wavefront. This means a per-thread lock |
| // cannot be implemented - if one thread gets the lock, it can't continue on to |
| // the next instruction in order to do anything as the other threads are waiting |
| // to take the lock. |
| // These functions will be implemented to provide the documented semantics for |
| // a SIMD => wavefront mapping once that is implemented. |
| // |
| //===----------------------------------------------------------------------===// |
| #pragma omp declare target |
| |
| #include "common/debug.h" |
| |
| static void warn() { |
| PRINT0(LD_ALL, "Locks are not supported in this thread mapping model"); |
| } |
| |
| void __kmpc_impl_init_lock(omp_lock_t *) { warn(); } |
| void __kmpc_impl_destroy_lock(omp_lock_t *) { warn(); } |
| void __kmpc_impl_set_lock(omp_lock_t *) { warn(); } |
| void __kmpc_impl_unset_lock(omp_lock_t *) { warn(); } |
| int __kmpc_impl_test_lock(omp_lock_t *lock) { |
| warn(); |
| return 0; |
| } |
| |
| #pragma omp end declare target |
