1 //===-- Generic utilities for GPU timing ----------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "time_utils.h" 10 #include "src/__support/macros/config.h" 11 12 namespace LIBC_NAMESPACE_DECL { 13 14 #if defined(LIBC_TARGET_ARCH_IS_AMDGPU) 15 // This is expected to be initialized by the runtime if the default value is 16 // insufficient. 17 // TODO: Once we have another use-case for this we should put it in a common 18 // device environment struct. 19 gpu::Constant<uint64_t> __llvm_libc_clock_freq = clock_freq; 20 #endif 21 22 } // namespace LIBC_NAMESPACE_DECL 23