| /* |
| * Copyright (c) 2021 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 |
| |
| #ifdef __aarch64__ |
| |
| namespace { |
| |
| void a64_transpose_interleave_16(uint32_t *out, const uint32_t *in, size_t width, size_t in_stride, size_t height) |
| { |
| size_t out_stride = 4 * height * sizeof(uint32_t); |
| |
| __asm__ __volatile__( |
| "cmp %x[height], #0x4\n" |
| "blt 6f\n" |
| "1:" // Main row loop: Head |
| "mov x24, %x[in]\n" |
| "mov x23, %x[out]\n" |
| "add x22, x24, %x[in_stride]\n" |
| "add x21, x22, %x[in_stride]\n" |
| "add x20, x21, %x[in_stride]\n" |
| "add %x[in], x20, %x[in_stride]\n" |
| "sub %x[height], %x[height], #0x4\n" |
| "mov x19, %x[width]\n" |
| "cmp x19, #0x4\n" |
| "blt 3f\n" |
| "2:" // Main row loop: Column loop |
| "ldr q19, [x24], #0x10\n" |
| "sub x19, x19, #0x4\n" |
| "ldr q18, [x22], #0x10\n" |
| "cmp x19, #0x4\n" |
| "ldr q17, [x21], #0x10\n" |
| "ldr q16, [x20], #0x10\n" |
| "str q19, [x23, #0x0]\n" |
| "str q18, [x23, #0x10]\n" |
| "str q17, [x23, #0x20]\n" |
| "str q16, [x23, #0x30]\n" |
| "add x23, x23, %x[out_stride]\n" |
| "bge 2b\n" |
| "3:" // Main row loop: Column loop skip |
| "cmp x19, #0x1\n" |
| "blt 5f\n" |
| "4:" // Main row loop: width 1 loop: loop |
| "ldr s19, [x24], #0x4\n" |
| "sub x19, x19, #0x1\n" |
| "ldr s18, [x22], #0x4\n" |
| "cmp x19, #0x1\n" |
| "ldr s17, [x21], #0x4\n" |
| "ldr s16, [x20], #0x4\n" |
| "str s19, [x23, #0x0]\n" |
| "str s18, [x23, #0x10]\n" |
| "str s17, [x23, #0x20]\n" |
| "str s16, [x23, #0x30]\n" |
| "add x23, x23, #0x4\n" |
| "bge 4b\n" |
| "5:" // Main row loop: width 1 loop: skip |
| "add %x[out], %x[out], #0x40\n" |
| "cmp %x[height], #0x4\n" |
| "bge 1b\n" |
| "cbz %x[height], 12f\n" |
| "6:" // Main loop skip |
| |
| "7:" // Tail row loop: Head |
| "mov x24, %x[in]\n" |
| "mov x23, %x[out]\n" |
| "add %x[in], x24, %x[in_stride]\n" |
| "sub %x[height], %x[height], #0x1\n" |
| "mov x19, %x[width]\n" |
| "cmp x19, #0x4\n" |
| "blt 9f\n" |
| "8:" // Tail row loop: Column loop |
| "ldr q16, [x24], #0x10\n" |
| "sub x19, x19, #0x4\n" |
| "cmp x19, #0x4\n" |
| "str q16, [x23, #0x0]\n" |
| "add x23, x23, %x[out_stride]\n" |
| "bge 8b\n" |
| "9:" // Tail row loop: Column loop skip |
| "cmp x19, #0x1\n" |
| "blt 11f\n" |
| "10:" // Tail row loop: width 1 loop: loop |
| "ldr s16, [x24], #0x4\n" |
| "sub x19, x19, #0x1\n" |
| "cmp x19, #0x1\n" |
| "str s16, [x23, #0x0]\n" |
| "add x23, x23, #0x4\n" |
| "bge 10b\n" |
| "11:" // Tail row loop: width 1 loop: skip |
| "add %x[out], %x[out], #0x10\n" |
| "cmp %x[height], #0x1\n" |
| "bge 7b\n" |
| "12:" // Done |
| |
| : [height] "+&r" (height), [in] "+&r" (in), [out] "+&r" (out) |
| : [in_stride] "r" (in_stride), [out_stride] "r" (out_stride), [width] "r" (width) |
| : "cc", "memory", "v16", "v17", "v18", "v19", "x19", "x20", "x21", "x22", "x23", "x24" |
| ); |
| } |
| |
| } // anonymous namespace |
| |
| template<> |
| void Transform<4, 1, true, VLType::None>( |
| float *out, const float *in, int stride, int x0, int xmax, int k0, int kmax) |
| { |
| a64_transpose_interleave_16( |
| reinterpret_cast<uint32_t *>(out), |
| reinterpret_cast<const uint32_t *>(in + k0 * stride + x0), |
| (xmax-x0) * sizeof(float) / 4, |
| stride * sizeof(float), |
| (kmax-k0) |
| ); |
| } |
| |
| #endif |