| /* |
| * 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. |
| */ |
| |
| /* Utilities for constructing functions which constrain which kernels are |
| * selected for a given depthwise problem. |
| * |
| * It is expected that this will be included in the files which list the |
| * available kernels. To avoid multiple definitions, an anonymous namespace is |
| * used. |
| */ |
| |
| #pragma once |
| |
| #include "arm_gemm.hpp" |
| #include "src/core/NEON/kernels/assembly/depthwise.hpp" |
| |
| namespace arm_conv |
| { |
| namespace depthwise |
| { |
| namespace |
| { |
| |
| template <class OutputStage> |
| using ConstraintFn = std::function<bool(const DepthwiseArgs &, const OutputStage &)>; |
| |
| using GenericConstraintFn = std::function<bool(const DepthwiseArgs &, const void *)>; |
| |
| GenericConstraintFn make_constraint(const GenericConstraintFn &f) __attribute__ ((unused)); |
| GenericConstraintFn make_constraint(const GenericConstraintFn &f) |
| { |
| return f; |
| } |
| |
| template <typename ... Fs> |
| GenericConstraintFn make_constraint(const GenericConstraintFn &f, Fs ... fs) |
| { |
| return [f, fs...] (const DepthwiseArgs &args, const void *os) -> bool { |
| return f(args, os) && make_constraint(fs...)(args, os); |
| }; |
| } |
| |
| template <typename OutputStage=Nothing, typename ... Fs> |
| ConstraintFn<OutputStage> constraint(Fs ... fs) |
| { |
| return [fs...] (const DepthwiseArgs &args, const OutputStage &os) -> bool { |
| return make_constraint(fs...)(args, &os); |
| }; |
| } |
| |
| // Some useful constraints |
| template <class Strategy> |
| bool is_supported(const DepthwiseArgs &args, const void *) |
| { |
| return ((args.kernel_rows == Strategy::kernel_rows) && |
| (args.kernel_cols == Strategy::kernel_cols) && |
| (args.stride_rows == Strategy::stride_rows) && |
| (args.stride_cols == Strategy::stride_cols)); |
| } |
| |
| bool cpu_has_dot_product(const DepthwiseArgs &args, const void *) __attribute__ ((unused)); |
| bool cpu_has_dot_product(const DepthwiseArgs &args, const void *) |
| { |
| return args.cpu_info->has_dotprod(); |
| } |
| |
| bool cpu_has_sve(const DepthwiseArgs &args, const void *) __attribute__ ((unused)); |
| bool cpu_has_sve(const DepthwiseArgs &args, const void *) |
| { |
| return args.cpu_info->has_sve(); |
| } |
| |
| bool cpu_has_sve2(const DepthwiseArgs &args, const void *) __attribute__ ((unused)); |
| bool cpu_has_sve2(const DepthwiseArgs &args, const void *) |
| { |
| return args.cpu_info->has_sve2(); |
| } |
| |
| bool cpu_has_fp16(const DepthwiseArgs &args, const void *) __attribute__ ((unused)); |
| bool cpu_has_fp16(const DepthwiseArgs &args, const void *) |
| { |
| return args.cpu_info->has_fp16(); |
| } |
| |
| bool has_no_channel_multiplier(const DepthwiseArgs &args, const void *) __attribute__ ((unused)); |
| bool has_no_channel_multiplier(const DepthwiseArgs &args, const void *) |
| { |
| return args.channel_multiplier == 1; |
| } |
| |
| bool qp_has_no_left_shift(const DepthwiseArgs &args, const void *_qp) __attribute__ ((unused)); |
| bool qp_has_no_left_shift(const DepthwiseArgs &, const void *_qp) |
| { |
| const auto qp = static_cast<const arm_gemm::Requantize32 *>(_qp); |
| return qp->per_channel_requant ? |
| (qp->per_channel_left_shifts == nullptr) : |
| (qp->per_layer_left_shift == 0); |
| } |
| |
| } // namespace |
| } // namespace depthwise |
| } // namespace arm_conv |