| /* |
| * Copyright (c) 2021-2022 Arm Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef SRC_COMMON_CPUINFO_H |
| #define SRC_COMMON_CPUINFO_H |
| |
| #include "src/common/cpuinfo/CpuIsaInfo.h" |
| #include "src/common/cpuinfo/CpuModel.h" |
| |
| #include <string> |
| #include <vector> |
| |
| namespace arm_compute |
| { |
| namespace cpuinfo |
| { |
| /** Aggregate class that contains CPU related information |
| * |
| * Contains information about the numbers of the CPUs, the model of each CPU, |
| * ISA related information and more |
| * |
| * @note We can safely assume that the ISA is common between different clusters of cores |
| */ |
| class CpuInfo |
| { |
| public: |
| /** Default constructor */ |
| CpuInfo() = default; |
| /** Construct a new Cpu Info object |
| * |
| * @param[in] isa ISA capabilities information |
| * @param[in] cpus CPU models information |
| */ |
| CpuInfo(CpuIsaInfo isa, std::vector<CpuModel> cpus); |
| /** CpuInfo builder function from system related information |
| * |
| * @return CpuInfo A populated CpuInfo structure |
| */ |
| static CpuInfo build(); |
| |
| public: |
| bool has_neon() const |
| { |
| return _isa.neon; |
| } |
| bool has_sve() const |
| { |
| return _isa.sve; |
| } |
| bool has_sve2() const |
| { |
| return _isa.sve2; |
| } |
| bool has_sme() const |
| { |
| return _isa.sme; |
| } |
| bool has_sme2() const |
| { |
| return _isa.sme2; |
| } |
| bool has_fp16() const |
| { |
| return _isa.fp16; |
| } |
| bool has_bf16() const |
| { |
| return _isa.bf16; |
| } |
| bool has_svebf16() const |
| { |
| return _isa.svebf16; |
| } |
| bool has_dotprod() const |
| { |
| return _isa.dot; |
| } |
| bool has_i8mm() const |
| { |
| return _isa.i8mm; |
| } |
| bool has_svei8mm() const |
| { |
| return _isa.svei8mm; |
| } |
| bool has_svef32mm() const |
| { |
| return _isa.svef32mm; |
| } |
| |
| const CpuIsaInfo &isa() const |
| { |
| return _isa; |
| } |
| const std::vector<CpuModel> &cpus() const |
| { |
| return _cpus; |
| } |
| |
| CpuModel cpu_model(uint32_t cpuid) const; |
| CpuModel cpu_model() const; |
| uint32_t num_cpus() const; |
| |
| private: |
| CpuIsaInfo _isa{}; |
| std::vector<CpuModel> _cpus{}; |
| }; |
| |
| /** Some systems have both big and small cores, this fuction computes the minimum number of cores |
| * that are exactly the same on the system. To maximize performance the library attempts to process |
| * workloads concurrently using as many threads as big cores are available on the system. |
| * |
| * @return The minumum number of common cores. |
| */ |
| uint32_t num_threads_hint(); |
| } // namespace cpuinfo |
| } // namespace arm_compute |
| #endif /* SRC_COMMON_CPUINFO_H */ |