Francesco.Petrogalli@arm.com | 5fcf22d | 2022-04-05 10:31:08 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2022 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 | #include "arm_gemm.hpp" |
| 27 | |
| 28 | namespace arm_gemm { |
| 29 | |
| 30 | /* Internal enum to define the weight format a kernel is expecting. |
| 31 | * |
| 32 | * This is distinct from the "external" WeightFormat defined in arm_gemm.hpp primarily to allow for SVE, where |
| 33 | * internally kernels are defined in terms of multiples of the SVE vector length, but externally they are converted |
| 34 | * to a fixed format (based on the VL of the machine we are running on). |
| 35 | * |
| 36 | * Encoded as a bitfield: |
| 37 | * bit 0 : SVE flag |
| 38 | * bit 4 : BF16 convert flag (fast mode) |
| 39 | * bits 11-8 : block length (bytes) |
| 40 | * bits 15-12: vector count |
| 41 | */ |
| 42 | enum class KernelWeightFormat { |
| 43 | NON_FIXED = 0, |
| 44 | VL128_BL16 = 0x1200, |
| 45 | VL128_BL32 = 0x1400, |
| 46 | VL128_BL32_BF16 = 0x1410, |
| 47 | VL128_BL64 = 0x1800, |
| 48 | VL256_BL64 = 0x2800, |
| 49 | VL256_BL64_BF16 = 0x2810, |
| 50 | VL1VL_BL16 = 0x1201, |
| 51 | VL1VL_BL32 = 0x1401, |
| 52 | VL1VL_BL32_BF16 = 0x1411, |
| 53 | VL1VL_BL64 = 0x1801, |
| 54 | VL2VL_BL64 = 0x2801, |
| 55 | VL2VL_BL64_BF16 = 0x2811 |
| 56 | }; |
| 57 | |
| 58 | WeightFormat get_weight_format(const KernelWeightFormat, size_t); |
| 59 | |
| 60 | } // namespace arm_gemm |