1 files changed, 117 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/assembly/pooling.hpp b/src/core/NEON/kernels/assembly/pooling.hpp
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+++ b/src/core/NEON/kernels/assembly/pooling.hpp
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+/*
+ * Copyright (c) 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.
+ */
+
+#pragma once
+
+#include "arm_gemm_local.hpp"
+#include "pool_common.hpp"
+
+#include <memory>
+
+namespace arm_conv
+{
+namespace pooling
+{
+struct PoolingConfig
+{
+    PoolingMethod method = PoolingMethod::DEFAULT;
+    std::string   filter = "";
+
+    PoolingConfig(PoolingMethod method)
+        : method(method) {};
+    PoolingConfig() {};
+};
+
+struct PoolingArgs
+{
+    const CPUInfo *cpu_info;
+
+    PoolingType   pool_type;
+    PoolingWindow pool_window;
+    PoolingStride pool_stride;
+    bool          exclude_padding;
+
+    unsigned int n_batches, input_rows, input_cols, n_channels;
+    unsigned int output_rows, output_cols;
+
+    PaddingValues padding;
+
+    const PoolingConfig *config;
+
+    PoolingArgs(
+        const CPUInfo       *cpu_info,
+        PoolingType          pool_type,
+        const PoolingWindow &window,
+        const PoolingStride &stride,
+        bool                 exclude_padding,
+        unsigned int         n_batches,
+        unsigned int         input_rows,
+        unsigned int         input_cols,
+        unsigned int         n_channels,
+        unsigned int         output_rows,
+        unsigned int         output_cols,
+        const PaddingValues &padding,
+        const PoolingConfig *cfg)
+        : cpu_info(cpu_info), pool_type(pool_type), pool_window(window), pool_stride(stride), exclude_padding(exclude_padding), n_batches(n_batches), input_rows(input_rows), input_cols(input_cols),
+          n_channels(n_channels), output_rows(output_rows), output_cols(output_cols), padding(padding), config(cfg)
+    {
+        // If either of the pooling window dimensions are set to zero, meaning
+        // "pool everything", then replace with the corresponding input dimension.
+        if(pool_window.rows == 0)
+        {
+            pool_window.rows = input_rows;
+        }
+        if(pool_window.cols == 0)
+        {
+            pool_window.cols = input_cols;
+        }
+    }
+};
+
+struct Requantize32
+{
+    int32_t input_offset  = 0;
+    int32_t output_offset = 0;
+
+    int32_t per_layer_left_shift  = 0;
+    int32_t per_layer_right_shift = 0;
+    int32_t per_layer_mul         = 0;
+
+    Requantize32(int32_t input_offset, int32_t output_offset,
+                 int32_t per_layer_left_shift, int32_t per_layer_right_shift,
+                 int32_t per_layer_mul)
+        : input_offset(input_offset), output_offset(output_offset), per_layer_left_shift(per_layer_left_shift), per_layer_right_shift(per_layer_right_shift), per_layer_mul(per_layer_mul)
+    {
+    }
+};
+
+template <typename TInput, typename TOutput, class OutputStage = Nothing>
+using UniquePoolingCommon = std::unique_ptr<PoolingCommon<TInput, TOutput, OutputStage>>;
+
+// Get a pooling engine
+template <typename TInput, typename TOutput = TInput, class OutputStage = Nothing>
+UniquePoolingCommon<TInput, TOutput, OutputStage> pooling(const PoolingArgs &, const OutputStage & = {});
+
+} // namespace pooling
+} // namespace arm_conv