Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 1 | /* |
Viet-Hoa Do | 03b2971 | 2022-06-01 11:47:14 +0100 | [diff] [blame] | 2 | * Copyright (c) 2021-2022 Arm Limited. |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 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 | #ifndef SRC_COMMON_CPUINFO_H |
| 25 | #define SRC_COMMON_CPUINFO_H |
| 26 | |
| 27 | #include "src/common/cpuinfo/CpuIsaInfo.h" |
| 28 | #include "src/common/cpuinfo/CpuModel.h" |
| 29 | |
| 30 | #include <string> |
| 31 | #include <vector> |
| 32 | |
| 33 | namespace arm_compute |
| 34 | { |
| 35 | namespace cpuinfo |
| 36 | { |
| 37 | /** Aggregate class that contains CPU related information |
| 38 | * |
| 39 | * Contains information about the numbers of the CPUs, the model of each CPU, |
| 40 | * ISA related information and more |
| 41 | * |
| 42 | * @note We can safely assume that the ISA is common between different clusters of cores |
| 43 | */ |
| 44 | class CpuInfo |
| 45 | { |
| 46 | public: |
| 47 | /** Default constructor */ |
| 48 | CpuInfo() = default; |
| 49 | /** Construct a new Cpu Info object |
| 50 | * |
| 51 | * @param[in] isa ISA capabilities information |
| 52 | * @param[in] cpus CPU models information |
| 53 | */ |
| 54 | CpuInfo(CpuIsaInfo isa, std::vector<CpuModel> cpus); |
| 55 | /** CpuInfo builder function from system related information |
| 56 | * |
| 57 | * @return CpuInfo A populated CpuInfo structure |
| 58 | */ |
| 59 | static CpuInfo build(); |
| 60 | |
| 61 | public: |
| 62 | bool has_neon() const |
| 63 | { |
| 64 | return _isa.neon; |
| 65 | } |
| 66 | bool has_sve() const |
| 67 | { |
| 68 | return _isa.sve; |
| 69 | } |
| 70 | bool has_sve2() const |
| 71 | { |
| 72 | return _isa.sve2; |
| 73 | } |
Viet-Hoa Do | 03b2971 | 2022-06-01 11:47:14 +0100 | [diff] [blame] | 74 | bool has_sme() const |
| 75 | { |
| 76 | return _isa.sme; |
| 77 | } |
| 78 | bool has_sme2() const |
| 79 | { |
| 80 | return _isa.sme2; |
| 81 | } |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 82 | bool has_fp16() const |
| 83 | { |
| 84 | return _isa.fp16; |
| 85 | } |
| 86 | bool has_bf16() const |
| 87 | { |
| 88 | return _isa.bf16; |
| 89 | } |
Michalis Spyrou | 20fca52 | 2021-06-07 14:23:57 +0100 | [diff] [blame] | 90 | bool has_svebf16() const |
| 91 | { |
| 92 | return _isa.svebf16; |
| 93 | } |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 94 | bool has_dotprod() const |
| 95 | { |
| 96 | return _isa.dot; |
| 97 | } |
Michalis Spyrou | 20fca52 | 2021-06-07 14:23:57 +0100 | [diff] [blame] | 98 | bool has_i8mm() const |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 99 | { |
Michalis Spyrou | 20fca52 | 2021-06-07 14:23:57 +0100 | [diff] [blame] | 100 | return _isa.i8mm; |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 101 | } |
Michalis Spyrou | 20fca52 | 2021-06-07 14:23:57 +0100 | [diff] [blame] | 102 | bool has_svei8mm() const |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 103 | { |
Michalis Spyrou | 20fca52 | 2021-06-07 14:23:57 +0100 | [diff] [blame] | 104 | return _isa.svei8mm; |
| 105 | } |
| 106 | bool has_svef32mm() const |
| 107 | { |
| 108 | return _isa.svef32mm; |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 109 | } |
| 110 | |
Georgios Pinitas | 731fe66 | 2021-06-24 20:32:11 +0100 | [diff] [blame] | 111 | const CpuIsaInfo &isa() const |
| 112 | { |
| 113 | return _isa; |
| 114 | } |
| 115 | const std::vector<CpuModel> &cpus() const |
| 116 | { |
| 117 | return _cpus; |
| 118 | } |
| 119 | |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 120 | CpuModel cpu_model(uint32_t cpuid) const; |
| 121 | CpuModel cpu_model() const; |
| 122 | uint32_t num_cpus() const; |
| 123 | |
| 124 | private: |
| 125 | CpuIsaInfo _isa{}; |
| 126 | std::vector<CpuModel> _cpus{}; |
| 127 | }; |
| 128 | |
| 129 | /** Some systems have both big and small cores, this fuction computes the minimum number of cores |
| 130 | * that are exactly the same on the system. To maximize performance the library attempts to process |
| 131 | * workloads concurrently using as many threads as big cores are available on the system. |
| 132 | * |
| 133 | * @return The minumum number of common cores. |
| 134 | */ |
| 135 | uint32_t num_threads_hint(); |
| 136 | } // namespace cpuinfo |
| 137 | } // namespace arm_compute |
| 138 | #endif /* SRC_COMMON_CPUINFO_H */ |