Evgeny
120 lines
4.0 KiB
C++
120 lines
4.0 KiB
C++
/*
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Copyright (c) 2018 Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef INC_ROCTRACER_HSA_RT_UTILS_HPP_
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#define INC_ROCTRACER_HSA_RT_UTILS_HPP_
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#include <hsa/hsa.h>
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#include <cstdint>
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#include <cstddef>
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#include <iostream>
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#include <mutex>
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#define HSART_CALL(call) \
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do { \
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hsa_status_t status = call; \
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if (status != HSA_STATUS_SUCCESS) { \
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std::cerr << "1HSA-rt call '" << #call << "' error(" << std::hex << status << ")" \
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<< std::dec << std::endl << std::flush; \
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abort(); \
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} \
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} while (0)
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namespace hsa_rt_utils {
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// HSA runtime timer implementation
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class Timer {
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public:
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typedef uint64_t timestamp_t;
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typedef long double freq_t;
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typedef decltype(hsa_system_get_info)* hsa_system_get_info_fn_t;
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// Initialization
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inline void init(const hsa_system_get_info_fn_t& get_info_fn) {
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hsa_system_get_info_fn = get_info_fn;
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timestamp_t timestamp_hz = 0;
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if (get_info_fn == NULL) {
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timestamp_rate_ = 0;
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} else {
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HSART_CALL(get_info_fn(HSA_SYSTEM_INFO_TIMESTAMP_FREQUENCY, ×tamp_hz));
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timestamp_rate_ = (freq_t)1000000000 / (freq_t)timestamp_hz;
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}
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}
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// Returns HSA runtime timestamp rate
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freq_t timestamp_rate() const { return timestamp_rate_; }
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// Convert a given timestamp to ns
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timestamp_t timestamp_to_ns(const timestamp_t ×tamp) const {
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return timestamp_t((freq_t)timestamp * timestamp_rate_);
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}
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// Return timestamp in 'ns'
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timestamp_t timestamp_ns() const {
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timestamp_t timestamp;
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HSART_CALL(hsa_system_get_info(HSA_SYSTEM_INFO_TIMESTAMP, ×tamp));
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return timestamp_to_ns(timestamp);
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}
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timestamp_t timestamp_fn_ns() const {
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timestamp_t timestamp;
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HSART_CALL(hsa_system_get_info_fn(HSA_SYSTEM_INFO_TIMESTAMP, ×tamp));
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return timestamp_to_ns(timestamp);
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}
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Timer(hsa_system_get_info_fn_t f = NULL) {
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if (f != NULL) init(f);
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else init(hsa_system_get_info);
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}
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private:
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// hsa_system_get_info function
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hsa_system_get_info_fn_t hsa_system_get_info_fn;
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// Timestamp rate
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freq_t timestamp_rate_;
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};
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class TimerFactory {
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public:
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typedef std::mutex mutex_t;
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static Timer* Create(Timer::hsa_system_get_info_fn_t f = NULL) {
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if (instance_ == NULL) {
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std::lock_guard<mutex_t> lck(mutex_);
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if (instance_ == NULL) instance_ = new Timer(f);
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}
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return instance_;
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}
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static Timer& Instance() {
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return *instance_;
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}
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private:
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static Timer* instance_;
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static mutex_t mutex_;
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};
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} // namespace hsa_rt_utils
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#endif // INC_ROCTRACER_HSA_RT_UTILS_HPP_
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