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Diffstat (limited to 'src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_16bit.hpp')
| -rw-r--r-- | src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_16bit.hpp | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_16bit.hpp b/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_16bit.hpp new file mode 100644 index 0000000000..3cbc8815e3 --- /dev/null +++ b/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_16bit.hpp @@ -0,0 +1,170 @@ +/* + * 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. + */ +#pragma once + +#ifdef __aarch64__ + +#include <arm_neon.h> + +#include "../asmlib.hpp" + +template <> +template <typename T> +void TransformImpl<8, 1, false, 2, 2>::Transform(T *out, const T *in, int ldin, int y0, int ymax, int k0, int kmax) +{ + uint16_t *outptr = (uint16_t *)out; + const uint16_t *inptr = (const uint16_t *)in; + + uint16_t zerobuff[24]; + + for(int y = y0; y < ymax; y += 8) + { + const uint16_t *inptr0 = inptr + y * ldin + k0; + const uint16_t *inptr1 = inptr0 + ldin; + const uint16_t *inptr2 = inptr1 + ldin; + const uint16_t *inptr3 = inptr2 + ldin; + const uint16_t *inptr4 = inptr3 + ldin; + const uint16_t *inptr5 = inptr4 + ldin; + const uint16_t *inptr6 = inptr5 + ldin; + const uint16_t *inptr7 = inptr6 + ldin; + + prefetch_2x(inptr0); + prefetch_2x(inptr1); + prefetch_2x(inptr2); + prefetch_2x(inptr3); + prefetch_2x(inptr4); + prefetch_2x(inptr5); + prefetch_2x(inptr6); + prefetch_2x(inptr7); + + int x = (kmax - k0); + for(; x > 7; x -= 8) + { + /* Cope with ragged cases by copying from a buffer of zeroes instead */ + if((y + 7) >= ymax) + { + switch((y + 7) - ymax) + { + /* Everything falls through in here */ + case 6: + inptr1 = zerobuff; + case 5: + inptr2 = zerobuff; + case 4: + inptr3 = zerobuff; + case 3: + inptr4 = zerobuff; + case 2: + inptr5 = zerobuff; + case 1: + inptr6 = zerobuff; + case 0: + inptr7 = zerobuff; + break; + + default: + UNREACHABLE("Impossible."); + } + } + + int skippf = (x & 31); + __asm __volatile( + // Load up 8 elements (1 vector) from each of 8 sources. + "CBNZ %w[skippf], 1f\n" ASM_PREFETCH("[%[inptr0], #128]") + ASM_PREFETCH("[%[inptr1], #128]") + ASM_PREFETCH("[%[inptr2], #128]") + ASM_PREFETCH("[%[inptr3], #128]") + "1:\n" + + "LDR q0, [%[inptr0]], #16\n" // q0=A0A1A2A3A4A5A6A7 + "LDR q4, [%[inptr4]], #16\n" // q8=E0E1E2E3E4E5E6E7 + "LDR q2, [%[inptr2]], #16\n" // q4=C0C1C2C3... + "LDR q6, [%[inptr6]], #16\n" + "ZIP1 v8.8h, v0.8h, v4.8h\n" // q8=A0E0A1E1A2E2A3E3 + "ZIP2 v16.8h, v0.8h, v4.8h\n" // q16=A4E4A5E5A6E6A7E7 + "ZIP1 v9.8h, v2.8h, v6.8h\n" // q9=C0G0C1G1C2G2C3G3 + "ZIP2 v17.8h, v2.8h, v6.8h\n" // q17=C4G4C5G5C6G6C7G7 + "LDR q1, [%[inptr1]], #16\n" // q1=B0B1B2B3B4B5B6B7 + "LDR q5, [%[inptr5]], #16\n" + "LDR q3, [%[inptr3]], #16\n" // q3=D0D1D2D3.... + "LDR q7, [%[inptr7]], #16\n" + "ZIP1 v10.8h, v1.8h, v5.8h\n" // q18=B0F0B1F1B2F2B3F3 + "ZIP2 v18.8h, v1.8h, v5.8h\n" // q18=B4F4B5F5B6F6B7F7 + "ZIP1 v11.8h, v3.8h, v7.8h\n" // q19=D0H0D1H1D2H2D3H3 + "ZIP2 v19.8h, v3.8h, v7.8h\n" // q19=D4H4D5H5D6H6D7H7 + + "ZIP1 v12.8h, v8.8h, v9.8h\n" // q20=A0C0E0G0A1C1E1G1 + "ZIP2 v20.8h, v8.8h, v9.8h\n" + "ZIP1 v13.8h, v10.8h, v11.8h\n" // q21=B0D0F0H0B1I1F1H1 + "ZIP2 v21.8h, v10.8h, v11.8h\n" + + "CBNZ %w[skippf], 2f\n" ASM_PREFETCH("[%[inptr4], #112]") + ASM_PREFETCH("[%[inptr5], #112]") + ASM_PREFETCH("[%[inptr6], #112]") + ASM_PREFETCH("[%[inptr7], #112]") + "2:\n" + + "ZIP1 v22.8h, v16.8h, v17.8h\n" + "ZIP2 v30.8h, v16.8h, v17.8h\n" + "ZIP1 v23.8h, v18.8h, v19.8h\n" + "ZIP2 v31.8h, v18.8h, v19.8h\n" + + "ZIP1 v14.8h, v12.8h, v13.8h\n" // q22=A0B0C0D0E0F0G0H0 + "ZIP2 v15.8h, v12.8h, v13.8h\n" // q23=A1B1C1D1E1F1G1H1 + "STP q14, q15, [%[outptr]], #32\n" // Write back first two elements + + "ZIP1 v0.8h, v20.8h, v21.8h\n" + "ZIP2 v1.8h, v20.8h, v21.8h\n" + "STP q0, q1, [%[outptr]], #32\n" // Write back next two elements + + "ZIP1 v2.8h, v22.8h, v23.8h\n" + "ZIP2 v3.8h, v22.8h, v23.8h\n" + "STP q2, q3, [%[outptr]], #32\n" // Write back next two elements + + "ZIP1 v4.8h, v30.8h, v31.8h\n" + "ZIP2 v5.8h, v30.8h, v31.8h\n" + "STP q4, q5, [%[outptr]], #32\n" // Write back last two elements + : [inptr0] "+r"(inptr0), [inptr1] "+r"(inptr1), [inptr2] "+r"(inptr2), [inptr3] "+r"(inptr3), + [inptr4] "+r"(inptr4), [inptr5] "+r"(inptr5), [inptr6] "+r"(inptr6), [inptr7] "+r"(inptr7), [outptr] "+r"(outptr) + : [skippf] "r"(skippf) + : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9", "v10", "v11", "v12", + "v13", "v14", "v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", + "v25", "v26", "v27", "v28", "v29", "v30", "v31"); + } + + for(; x > 0; x--) + { + *outptr++ = *inptr0++; + *outptr++ = *inptr1++; + *outptr++ = *inptr2++; + *outptr++ = *inptr3++; + *outptr++ = *inptr4++; + *outptr++ = *inptr5++; + *outptr++ = *inptr6++; + *outptr++ = *inptr7++; + } + } +} + +#endif // __aarch64__ |