1 /*
2 * Copyright (c) 2017-2021 Arm Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24 #include "WallClockTimer.h"
25
26 #include "../Framework.h"
27 #include "../Utils.h"
28
29 namespace arm_compute
30 {
31 namespace test
32 {
33 namespace framework
34 {
35 template <bool output_timestamps>
id() const36 std::string WallClock<output_timestamps>::id() const
37 {
38 if(output_timestamps)
39 {
40 return "Wall clock timestamps";
41 }
42 else
43 {
44 return "Wall clock";
45 }
46 }
47
48 template <bool output_timestamps>
start()49 void WallClock<output_timestamps>::start()
50 {
51 #if defined(BARE_METAL)
52 uint64_t tmp;
53 uint64_t retval;
54
55 __asm __volatile(
56 "mrs %[tmp], pmcr_el0\n"
57 "orr %[tmp], %[tmp], #1\n"
58 "msr pmcr_el0, %[tmp]\n"
59 "mrs %[tmp], pmcntenset_el0\n"
60 "orr %[tmp], %[tmp], #1<<31\n"
61 "msr pmcntenset_el0, %[tmp]\n"
62 "mrs %[retval], pmccntr_el0\n"
63 : [tmp] "=r"(tmp), [retval] "=r"(retval));
64
65 _start = retval;
66 #else // !defined(BARE_METAL)
67 _start = std::chrono::system_clock::now();
68 #endif // defined(BARE_METAL)
69 }
70
71 template <bool output_timestamps>
stop()72 void WallClock<output_timestamps>::stop()
73 {
74 #if defined(BARE_METAL)
75 uint64_t tmp;
76 uint64_t retval;
77
78 __asm __volatile(
79 "mrs %[retval], pmccntr_el0\n"
80 "mov %[tmp], #0x3f\n"
81 "orr %[tmp], %[tmp], #1<<31\n"
82 "msr pmcntenclr_el0, %[tmp]\n"
83 : [tmp] "=r"(tmp), [retval] "=r"(retval));
84
85 _stop = retval;
86 #else // !defined(BARE_METAL)
87 _stop = std::chrono::system_clock::now();
88 #endif // defined(BARE_METAL)
89 }
90
91 template <bool output_timestamps>
measurements() const92 Instrument::MeasurementsMap WallClock<output_timestamps>::measurements() const
93 {
94 MeasurementsMap measurements;
95 if(output_timestamps)
96 {
97 #if defined(BARE_METAL)
98 measurements.emplace("[start]Wall clock time", Measurement(_start / static_cast<uint64_t>(_scale_factor), _unit));
99 measurements.emplace("[end]Wall clock time", Measurement(_stop / static_cast<uint64_t>(_scale_factor), _unit));
100 #else // !defined(BARE_METAL)
101 measurements.emplace("[start]Wall clock time", Measurement(_start.time_since_epoch().count() / static_cast<uint64_t>(1000 * _scale_factor), _unit));
102 measurements.emplace("[end]Wall clock time", Measurement(_stop.time_since_epoch().count() / static_cast<uint64_t>(1000 * _scale_factor), _unit));
103 #endif // defined(BARE_METAL)
104 }
105 else
106 {
107 #if defined(BARE_METAL)
108 const double delta = _stop - _start;
109 measurements.emplace("Wall clock time", Measurement(delta / static_cast<double>(1000 * _scale_factor), _unit));
110 #else // !defined(BARE_METAL)
111 const auto delta = std::chrono::duration_cast<std::chrono::microseconds>(_stop - _start);
112 measurements.emplace("Wall clock time", Measurement(delta.count() / _scale_factor, _unit));
113 #endif // defined(BARE_METAL)
114 }
115 return measurements;
116 }
117
118 } // namespace framework
119 } // namespace test
120 } // namespace arm_compute
121
122 template class arm_compute::test::framework::WallClock<true>;
123 template class arm_compute::test::framework::WallClock<false>;
124