1 files changed, 131 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/assembly/depthwise_common.hpp b/src/core/NEON/kernels/assembly/depthwise_common.hpp
new file mode 100644
index 0000000000..52963ab357
--- /dev/null
+++ b/src/core/NEON/kernels/assembly/depthwise_common.hpp
@@ -0,0 +1,131 @@
+/*
+ * 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.hpp"
+#include "common.hpp"
+
+namespace arm_conv
+{
+namespace depthwise
+{
+using arm_gemm::Nothing;
+
+enum class DepthwiseMethod
+{
+    DEFAULT,
+    DEPTHFIRST,
+    PLANAR,
+};
+
+struct KernelDescription
+{
+    DepthwiseMethod method         = DepthwiseMethod::DEFAULT;
+    std::string     name           = "";
+    bool            is_default     = false;
+    uint64_t        cycle_estimate = 0;
+
+    KernelDescription(
+        DepthwiseMethod method,
+        std::string     name,
+        bool            is_default,
+        uint64_t        cycle_estimate)
+        : method(method), name(name), is_default(is_default), cycle_estimate(cycle_estimate)
+    {
+    }
+
+    KernelDescription() noexcept {};
+};
+
+class IDepthwiseCommon
+{
+public:
+    virtual ~IDepthwiseCommon() = default;
+
+    // Determine the amount of storage space required for the rearranged weights
+    // and bias.
+    virtual size_t get_storage_size(void) const = 0;
+
+    // Rearrange the weights and biases into a storage buffer.
+    // Accepts a pointer to a buffer into which to store the packed parameters, a
+    // pointer the bias vector (which may be nullptr in the case of no bias) and
+    // a pointer to the array of weights (stored in HWIO order).
+    virtual void pack_parameters(
+        void       *buffer,
+        const void *biases,
+        const void *weights,
+        size_t      ld_weight_col = 0,
+        size_t      ld_weight_row = 0) = 0;
+
+    // Determine the amount of working space required
+    virtual size_t get_working_size(unsigned int n_threads, unsigned int n_input_channels) const = 0;
+
+    // Execute the convolution over the specified area of memory.
+    virtual void execute(
+        const void *input,       // Pointer to input tensor
+        const void *parameters,  // Packed parameters buffer
+        void        *output,
+        void        *working_space,
+        unsigned int thread_id,
+        unsigned int n_threads) const = 0;
+
+    virtual void execute(
+        const void *input,
+        size_t       ld_input_col,
+        size_t       ld_input_row,
+        size_t       ld_input_batch,
+        const void *parameters,
+        void        *output,
+        size_t       ld_output_col,
+        size_t       ld_output_row,
+        size_t       ld_output_batch,
+        void        *working_space,
+        unsigned int thread_id,
+        unsigned int n_threads) const = 0;
+
+    virtual void execute(
+        unsigned int batches,
+        unsigned int input_height,
+        unsigned int input_width,
+        unsigned int channels,
+        const PaddingValues &,
+        const void *input,
+        size_t       ld_input_col,
+        size_t       ld_input_row,
+        size_t       ld_input_batch,
+        const void *parameters,
+        unsigned int output_height,
+        unsigned int output_width,
+        void        *output,
+        size_t       ld_output_col,
+        size_t       ld_output_row,
+        size_t       ld_output_batch,
+        void        *working_space,
+        unsigned int thread_id,
+        unsigned int n_threads) const = 0;
+};
+
+} // namespace depthwise
+} // namespace arm_conv