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Diffstat (limited to 'src/core/cpu/kernels/CpuSoftmaxKernel.h')
| -rw-r--r-- | src/core/cpu/kernels/CpuSoftmaxKernel.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/core/cpu/kernels/CpuSoftmaxKernel.h b/src/core/cpu/kernels/CpuSoftmaxKernel.h new file mode 100644 index 0000000000..aa10467965 --- /dev/null +++ b/src/core/cpu/kernels/CpuSoftmaxKernel.h @@ -0,0 +1,107 @@ +/* + * Copyright (c) 2017-2021 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_CPU_SOFTMAXKERNEL_H +#define ARM_COMPUTE_CPU_SOFTMAXKERNEL_H + +#include "src/core/common/Macros.h" +#include "src/core/cpu/ICpuKernel.h" + +namespace arm_compute +{ +namespace cpu +{ +namespace kernels +{ +/** Interface for the identifying the max value of 1D Logits */ +class CpuLogits1DMaxKernel : public ICpuKernel +{ +public: + /** Constructor */ + CpuLogits1DMaxKernel(); + ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuLogits1DMaxKernel); + /** 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 + */ + void configure(const ITensorInfo *src, ITensorInfo *dst); + /** Static function to check if given info will lead to a valid configuration of @ref CpuLogits1DMaxKernel + * + * @param[in] src Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. + * @param[in] dst Destination tensor info. Data types supported: same as @p input + * + * @return a status + */ + static Status validate(const ITensorInfo *src, const ITensorInfo *dst); + + // Inherited methods overridden: + void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; + const char *name() const override; +}; + +/** Interface for softmax computation for QASYMM8 with pre-computed max. */ +template <bool IS_LOG = false> +class CpuLogits1DSoftmaxKernel : public ICpuKernel +{ +public: + /** Default constructor */ + CpuLogits1DSoftmaxKernel(); + ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuLogits1DSoftmaxKernel); + + /** Set the input and output tensors. + * + * @param[in] src Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. + * @param[in] max Max values tensor info. Same shape as input with dimension 0 set to 1. + * Data types supported: same as @p input. + * @param[out] dst Destination tensor info. Data types supported: same as @p input. + * @param[in] beta A scaling factor for the exponent. + * + * @param tmp Auxiliary tensor info. Must be type F32 and same shape as the input. + */ + void configure(const ITensorInfo *src, const ITensorInfo *max, ITensorInfo *dst, const float beta, ITensorInfo *tmp); + /** Static function to check if given info will lead to a valid configuration of @ref CpuLogits1DSoftmaxKernel + * + * @param[in] src Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. + * @param[in] max Max values tensor info. Same shape as input with dimension 0 set to 1. + * Data types supported: same as @p input. + * @param[in] dst Destination tensor info. Data types supported: same as @p input. + * @param[in] beta A scaling factor for the exponent. + * @param[in] tmp Tensor info of auxiliary. Must be type F32 and same shape as the input. + * + * @return a status + */ + static Status validate(const ITensorInfo *src, const ITensorInfo *max, + const ITensorInfo *dst, const float beta, const ITensorInfo *tmp); + + // Inherited methods overridden: + void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; + const char *name() const override; + +private: + float _beta; +}; +} // namespace kernels +} // namespace cpu +} // namespace arm_compute +#endif /* ARM_COMPUTE_CPU_SOFTMAXKERNEL_H */ |