| //===-- Generic utilities for GPU timing ----------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "time_utils.h" |
| |
| namespace LIBC_NAMESPACE { |
| |
| #if defined(LIBC_TARGET_ARCH_IS_AMDGPU) |
| // This is expected to be initialized by the runtime if the default value is |
| // insufficient. |
| // TODO: Once we have another use-case for this we should put it in a common |
| // device environment struct. |
| extern "C" [[gnu::visibility("protected")]] uint64_t |
| [[clang::address_space(4)]] __llvm_libc_clock_freq = clock_freq; |
| #endif |
| |
| } // namespace LIBC_NAMESPACE |
