| /* |
| * 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 ARM_COMPUTE_ICPUKERNEL_H |
| #define ARM_COMPUTE_ICPUKERNEL_H |
| |
| #include "arm_compute/core/CPP/ICPPKernel.h" |
| #include "src/cpu/kernels/CpuKernelSelectionTypes.h" |
| |
| namespace arm_compute |
| { |
| namespace cpu |
| { |
| enum class KernelSelectionType |
| { |
| Preferred, /**< Retrieve the best implementation available for the given Cpu ISA, ignoring the build flags */ |
| Supported /**< Retrieve the best implementation available for the given Cpu ISA that is supported by the current build */ |
| }; |
| |
| template <class Derived> |
| class ICpuKernel : public ICPPKernel |
| { |
| public: |
| /** Micro-kernel selector |
| * |
| * @param[in] selector Selection struct passed including information to help pick the appropriate micro-kernel |
| * @param[in] selection_type (Optional) Decides whether to get the best implementation for the given hardware or for the given build |
| * |
| * @return A matching micro-kernel else nullptr |
| */ |
| |
| template <typename SelectorType> |
| static const auto *get_implementation(const SelectorType &selector, KernelSelectionType selection_type = KernelSelectionType::Supported) |
| { |
| using kernel_type = typename std::remove_reference<decltype(Derived::get_available_kernels())>::type::value_type; |
| |
| for(const auto &uk : Derived::get_available_kernels()) |
| { |
| if(uk.is_selected(selector) && (selection_type == KernelSelectionType::Preferred || uk.ukernel != nullptr)) |
| { |
| return &uk; |
| } |
| } |
| |
| return static_cast<kernel_type *>(nullptr); |
| } |
| }; |
| } // namespace cpu |
| } // namespace arm_compute |
| #endif /* ARM_COMPUTE_ICPUKERNEL_H */ |