| /* |
| * Copyright (c) 2017-2018 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. |
| */ |
| |
| // This can only be built if the target/compiler supports FP16 arguments. |
| #ifdef __ARM_FP16_ARGS |
| |
| #include "arm_gemm.hpp" |
| |
| #include "gemm_common.hpp" |
| #include "gemm_interleaved.hpp" |
| |
| #include "kernels/a64_hgemm_24x8.hpp" |
| #include "kernels/a64_sgemm_12x8.hpp" |
| #include "kernels/a32_sgemm_8x6.hpp" |
| |
| namespace arm_gemm { |
| |
| template<> |
| UniqueGemmCommon<__fp16, __fp16> gemm(const CPUInfo &ci, const unsigned int M, const unsigned int N, const unsigned int K, |
| const unsigned int nbatches, const unsigned int nmulti, |
| const bool trA, const bool trB, const __fp16 alpha, const __fp16 beta, |
| const int maxthreads, const bool pretransposed_hint) { |
| #ifdef __aarch64__ |
| |
| // Only consider the native FP16 kernel if it will get built. |
| #if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) || defined(FP16_KERNELS) |
| #ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC |
| // If the compiler is configured to enable this feature always, then assume it is available at runtime too. |
| const bool use_fp16=true; |
| #else |
| // Otherwise, detect at runtime via CPUInfo. |
| const bool use_fp16=ci.has_fp16(); |
| #endif |
| |
| // If FP16 is supported, use it. |
| if (use_fp16) { |
| return UniqueGemmCommon<__fp16, __fp16>(new GemmInterleaved<hgemm_24x8, __fp16, __fp16>(&ci, M, N, K, nbatches, nmulti, trA, trB, alpha, beta, maxthreads, pretransposed_hint)); |
| } |
| #endif |
| |
| // Fallback to using the blocked SGEMM kernel. |
| return UniqueGemmCommon<__fp16, __fp16>(new GemmInterleaved<sgemm_12x8, __fp16, __fp16>(&ci, M, N, K, nbatches, nmulti, trA, trB, alpha, beta, maxthreads, pretransposed_hint)); |
| #else |
| // For AArch32, only support the SGEMM route for now. |
| return UniqueGemmCommon<__fp16, __fp16>(new GemmInterleaved<sgemm_8x6, __fp16, __fp16>(&ci, M, N, K, nbatches, nmulti, trA, trB, alpha, beta, maxthreads, pretransposed_hint)); |
| #endif |
| } |
| |
| // Instantiate static class members if necessary. |
| #if defined(__aarch64__) && (defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) || defined(FP16_KERNELS)) |
| const int hgemm_24x8::out_width; |
| const int hgemm_24x8::out_height; |
| #endif |
| |
| } // namespace arm_gemm |
| |
| #endif // __ARM_FP16_ARGS |