1 /* 2 * Copyright (c) 2017-2018 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #pragma once 25 26 #ifdef __arm__ 27 28 #include "../std_transforms_fixed.hpp" 29 30 namespace arm_gemm { 31 32 // Actual kernel implementations 33 void a32_sgemm_8x6(const float *, const float *, float *, int, int, int); 34 void a32_sgemm_8x6_a53(const float *, const float *, float *, int, int, int); 35 void a32_sgemm_8x6_a55r1(const float *, const float *, float *, int, int, int); 36 37 // 8x6 SGEMM "strategy" class. 38 // 39 // This describes the characteristics of a family of kernels, in terms of 40 // the required interleave properties and the output block size. 41 // 42 // All kernels in the family must share these characteristics. The actual 43 // kernel to be used can be chosen at runtime, based on the CPU_type 44 // structure. 45 class sgemm_8x6 { 46 public: 47 typedef float operand_type; 48 typedef float result_type; 49 50 typedef void (*kern_type)(const float *, const float *, float *, int, int, int); 51 52 /* Kernel blocking parameters */ out_width()53 static unsigned int out_width() { 54 return 8; 55 } 56 out_height()57 static unsigned int out_height() { 58 return 6; 59 } 60 k_unroll()61 static unsigned int k_unroll() { 62 return 1; 63 } 64 65 // Use the standard fixed size transforms. 66 StdTransformsFixed<operand_type, result_type, 6, 8> transforms = {}; 67 68 kern_type kernel = a32_sgemm_8x6; 69 sgemm_8x6(const CPUInfo * ci)70 sgemm_8x6(const CPUInfo *ci) { 71 switch(ci->get_cpu_model()) { 72 case CPUModel::A53: 73 kernel = a32_sgemm_8x6_a53; 74 break; 75 76 case CPUModel::A55r1: 77 kernel = a32_sgemm_8x6_a55r1; 78 break; 79 80 default: 81 /* Generic kernel is selected by default. */ 82 break; 83 } 84 } 85 }; 86 87 } // namespace arm_gemm 88 #endif // __arm__ 89