| /* |
| * Copyright (c) 2017-2024 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 ACL_SRC_CPU_KERNELS_CPUSOFTMAXKERNEL_H |
| #define ACL_SRC_CPU_KERNELS_CPUSOFTMAXKERNEL_H |
| |
| #include "src/core/common/Macros.h" |
| #include "src/cpu/ICpuKernel.h" |
| |
| namespace arm_compute |
| { |
| namespace cpu |
| { |
| namespace kernels |
| { |
| /** Interface for softmax computation */ |
| class CpuSoftmaxKernel : public ICpuKernel<CpuSoftmaxKernel> |
| { |
| private: |
| using SoftmaxKernelPtr = |
| std::add_pointer<void(const ITensor *, void *const, ITensor *, float, int, const Window &)>::type; |
| |
| public: |
| CpuSoftmaxKernel() = default; |
| ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuSoftmaxKernel); |
| |
| /** Set the input and output tensors. |
| * |
| * @param[in] src Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. |
| * @param[out] dst Destination tensor info. Data types supported: same as @p input. |
| * @param[in] beta A scaling factor for the exponent. |
| * @param[in] is_log True if the operation is log-softmax. |
| * @param[in] axis The axis along which to perform the softmax operation. |
| * |
| * @param tmp Auxiliary tensor info. Must be type F32 and same shape as the input. |
| */ |
| void configure(const ITensorInfo *src, ITensorInfo *dst, float beta, bool is_log, int axis, ITensorInfo *tmp); |
| /** Static function to check if given info will lead to a valid configuration |
| * |
| * Similar to CpuSoftmaxKernel::configure() |
| * |
| * @return a status |
| */ |
| static Status |
| validate(const ITensorInfo *src, const ITensorInfo *dst, float beta, int axis, bool is_log, const ITensorInfo *tmp); |
| |
| // Inherited methods overridden: |
| void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; |
| const char *name() const override; |
| |
| struct SoftmaxKernel |
| { |
| const char *name; |
| const SoftmaxKernelDataTypeISASelectorDataPtr is_selected; |
| SoftmaxKernelPtr ukernel; |
| }; |
| |
| static const std::vector<SoftmaxKernel> &get_available_kernels(); |
| |
| private: |
| float _beta{1.0f}; |
| SoftmaxKernelPtr _run_method{nullptr}; |
| std::string _name{}; |
| int _axis{}; |
| }; |
| } // namespace kernels |
| } // namespace cpu |
| } // namespace arm_compute |
| #endif // ACL_SRC_CPU_KERNELS_CPUSOFTMAXKERNEL_H |