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/*
* 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/a32_sgemm_8x6.hpp"
#include "kernels/a64_hgemm_24x8.hpp"
#include "kernels/a64_sgemm_12x8.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 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, 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, 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, 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
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