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Diffstat (limited to 'src/core/NEON/kernels/NEQLSTMLayerNormalizationKernel.h')
| -rw-r--r-- | src/core/NEON/kernels/NEQLSTMLayerNormalizationKernel.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/NEQLSTMLayerNormalizationKernel.h b/src/core/NEON/kernels/NEQLSTMLayerNormalizationKernel.h new file mode 100644 index 0000000000..af5b6a0315 --- /dev/null +++ b/src/core/NEON/kernels/NEQLSTMLayerNormalizationKernel.h @@ -0,0 +1,141 @@ +/* + * Copyright (c) 2020-2021 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_NEQLSTMLAYERNORMALIZATIONKERNEL_H +#define ARM_COMPUTE_NEQLSTMLAYERNORMALIZATIONKERNEL_H + +#include "src/core/NEON/INEKernel.h" + +#include <functional> + +namespace arm_compute +{ +class ITensor; + +/** Kernel to perform layer normalization for QLSTM. */ +class NEQLSTMLayerNormalizationKernel : public INEKernel +{ +public: + const char *name() const override + { + return "NEQLSTMLayerNormalizationKernel"; + } + /** Default constructor */ + NEQLSTMLayerNormalizationKernel() = default; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEQLSTMLayerNormalizationKernel(const NEQLSTMLayerNormalizationKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEQLSTMLayerNormalizationKernel &operator=(const NEQLSTMLayerNormalizationKernel &) = delete; + /** Default Move Constructor. */ + NEQLSTMLayerNormalizationKernel(NEQLSTMLayerNormalizationKernel &&) = default; + /** Default move assignment operator */ + NEQLSTMLayerNormalizationKernel &operator=(NEQLSTMLayerNormalizationKernel &&) = default; + /** Default destructor */ + ~NEQLSTMLayerNormalizationKernel() = default; + + /** Set the input and output tensors. + * + * @param[in] input Source tensor. Data types supported: QSYMM16. + * @param[out] output Destination tensor. Data types supported: Same as @p input. + * @param[in] weight Weight tensor. Data types supported: Same as @p input. + * @param[in] bias Bias tensor. Data types supported: S32 + */ + void configure(const ITensor *input, ITensor *output, const ITensor *weight, const ITensor *bias); + /** Static function to check if given info will lead to a valid configuration of @ref NEQLSTMLayerNormalizationKernel + * + * @param[in] input Source tensor info. Data types supported: QSYMM16. + * @param[in] output Destination tensor info. Data types supported: Same as @p input. + * @param[in] weight Weight tensor info. Data types supported: Same as @p input. + * @param[in] bias Bias tensor info. Data types supported: S32 + * + * @return a status + */ + static Status + validate(const ITensorInfo *input, const ITensorInfo *output, const ITensorInfo *weight, const ITensorInfo *bias); + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + +private: + // constants + static constexpr uint32_t max_input_dimension{2}; /**< The maximum input dimension supported */ + static constexpr uint32_t max_weight_dimension{1}; /**< The maximum weight dimension supported */ + static constexpr uint32_t max_bias_dimension{1}; /**< The maximum bias dimension supported */ + static constexpr uint32_t vector_size_byte{16}; /**< Computation vector size in byte */ + + using ComputeFuncType = std::function<void(NEQLSTMLayerNormalizationKernel &)>; + + ComputeFuncType _fn{}; /**< Function pointer to computation function */ + + const ITensor *_input{nullptr}; /**< Input tensor */ + const ITensor *_weight{nullptr}; /**< Weight tensor */ + const ITensor *_bias{nullptr}; /**< Bias tensor */ + ITensor *_output{nullptr}; /**< Output tensor */ + + int32_t _output_multiplier{}; /**< Multiplier for output values */ + int32_t _output_shift{}; /**< Shift value for output values */ + + int32_t _window_start_x{}; /**< The beginning of x-axis iteration */ + int32_t _window_end_x{}; /**< The end of x-axis iteration */ + int32_t _window_step_x{}; /**< The size of x-axis iteration's step */ + + Window _inout_window{}; /**< Window for input and output tensor */ + Window _weight_window{}; /**< Window for weight and bias tensor */ + + /** Function to configure initial windows for destination of computation + * + * @param[in] Target destination tensor to use for output window + * + * @return configured window + */ + Window configure_window(ITensor *target); + // Function to compute for data type QSYMM16 + void compute_qsymm16(); + /** Function to compute summation and summation of squared input of the given input pointer + * + * @param[in] Input_ptr pointer to input array + * + */ + std::pair<int64_t, int64_t> sum_qsymm16(const int16_t *input_ptr); + /** Function to normalize values using computed mean and standard deviation + * + * @param[in] input_ptr Pointer to input array + * @param[in] output_ptr Pointer to output array + * @param[in] weight_ptr Pointer to weight array + * @param[in] bias_ptr Pointer to bias array + * @param[in] mean Mean value + * @param[in] inv_std_mul Quantized multiplier for standard deviation + * @param[in] inv_std_shift Shift for standard deviation + * + */ + void normalize_qasymm16(const int16_t *input_ptr, + int16_t *output_ptr, + const int16_t *weight_ptr, + const int32_t *bias_ptr, + int32_t mean, + int32_t inv_std_mul, + int32_t inv_std_shift); + /** Function to compute output quantization information */ + QuantizationInfo compute_output_qinfo(); +}; +} // namespace arm_compute +#endif /* ARM_COMPUTE_NEQLSTMLAYERNORMALIZATIONKERNEL_H */ |