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/*
* Copyright (c) 2017-2020 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
#if defined(__aarch64__) && (defined(FP16_KERNELS) || defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC))
#include "../performance_parameters.hpp"
#include "../std_transforms_fixed.hpp"
namespace arm_gemm {
// Actual kernel implementations
void a64_hgemm_asimd_8x24(const __fp16 *, const __fp16 *, __fp16 *, int, int, int);
void a64_hgemm_asimd_8x24_a55r1(const __fp16 *, const __fp16 *, __fp16 *, int, int, int);
void a64_hgemm_asimd_8x24_x1(const __fp16 *, const __fp16 *, __fp16 *, int, int, int);
// 8x24 HGEMM "strategy" class. Describes the kernel properties.
//
// The generic "gemm_opt" function will instantiate one of these (allowing
// the constructor to pick a kernel implementation).
class cls_a64_hgemm_8x24 {
public:
typedef __fp16 operand_type;
typedef __fp16 result_type;
typedef void (*kern_type)(const __fp16 *, const __fp16 *, __fp16 *, int, int, int);
/* Kernel blocking parameters */
static unsigned int out_width() {
return 24;
}
static unsigned int out_height() {
return 8;
}
static unsigned int k_unroll() {
return 1;
}
// Use the standard fixed size transforms.
StdTransformsFixed<operand_type, result_type, 8, 24> transforms = {};
static PerformanceParameters get_performance_parameters(const CPUInfo *ci)
{
switch (ci->get_cpu_model()) {
case CPUModel::A55r1:
return { 7.16, 1.14, 0.67 };
default:
return { 12.67, 3.98, 1.16 };
}
}
// Default to the generic kernel
kern_type kernel = a64_hgemm_asimd_8x24;
cls_a64_hgemm_8x24(const CPUInfo *ci) {
auto model = ci->get_cpu_model();
if (model == CPUModel::A55r1) {
kernel = a64_hgemm_asimd_8x24_a55r1;
} else if (model == CPUModel::X1) {
kernel = a64_hgemm_asimd_8x24_x1;
}
}
};
} // namespace arm_gemm
#endif // __aarch64__ && (FP16_KERNELS || __ARM_FEATURE_FP16_VECTOR_ARITHMETIC)
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