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/*
* Copyright (c) 2021, 2023 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(ARM_COMPUTE_ENABLE_SVE)
namespace {
void sve_transpose_interleave_3VL(uint16_t *out, const uint16_t *in, size_t width, size_t in_stride, size_t height)
{
size_t out_stride = 3 * height * get_vector_length<uint8_t>();
__asm__ __volatile__(
"cmp %x[height], #0x4\n"
"ptrue p3.b\n"
"blt 4f\n"
"1:" // Main row loop: Head
"mov x26, %x[in]\n"
"add x25, x26, %x[in_stride]\n"
"add x24, x25, %x[in_stride]\n"
"add x23, x24, %x[in_stride]\n"
"add %x[in], x23, %x[in_stride]\n"
"mov x22, %x[out]\n"
"sub %x[height], %x[height], #0x4\n"
"mov x21, %x[width]\n"
"2:" // Main row loop: Column loop
"mov x20, x21\n"
"whilelt p2.h, XZR, x20\n"
"ld1h { z27.h }, p2/Z, [x26]\n"
"ld1h { z26.h }, p2/Z, [x25]\n"
"dech x20\n"
"whilelt p1.h, XZR, x20\n"
"ld1h { z25.h }, p1/Z, [x26, #1, MUL VL]\n"
"ld1h { z24.h }, p1/Z, [x25, #1, MUL VL]\n"
"dech x20\n"
"whilelt p0.h, XZR, x20\n"
"ld1h { z23.h }, p0/Z, [x26, #2, MUL VL]\n"
"ld1h { z22.h }, p0/Z, [x25, #2, MUL VL]\n"
"mov x20, x22\n"
"dech x21, ALL, MUL #3\n"
"ld1h { z21.h }, p2/Z, [x24]\n"
"ld1h { z20.h }, p1/Z, [x24, #1, MUL VL]\n"
"ld1h { z19.h }, p0/Z, [x24, #2, MUL VL]\n"
"ld1h { z18.h }, p2/Z, [x23]\n"
"cmp x21, #0x0\n"
"addvl x26, x26, #3\n"
"ld1h { z17.h }, p1/Z, [x23, #1, MUL VL]\n"
"ld1h { z16.h }, p0/Z, [x23, #2, MUL VL]\n"
"st1h { z27.h }, p3, [x20]\n"
"addvl x25, x25, #3\n"
"st1h { z25.h }, p3, [x20, #1, MUL VL]\n"
"addvl x24, x24, #3\n"
"addvl x23, x23, #3\n"
"st1h { z23.h }, p3, [x20, #2, MUL VL]\n"
"add x22, x22, %x[out_stride]\n"
"st1h { z26.h }, p3, [x20, #3, MUL VL]\n"
"st1h { z24.h }, p3, [x20, #4, MUL VL]\n"
"st1h { z22.h }, p3, [x20, #5, MUL VL]\n"
"st1h { z21.h }, p3, [x20, #6, MUL VL]\n"
"st1h { z20.h }, p3, [x20, #7, MUL VL]\n"
"addvl x20, x20, #12\n"
"st1h { z19.h }, p3, [x20, #-4, MUL VL]\n"
"st1h { z18.h }, p3, [x20, #-3, MUL VL]\n"
"st1h { z17.h }, p3, [x20, #-2, MUL VL]\n"
"st1h { z16.h }, p3, [x20, #-1, MUL VL]\n"
"bgt 2b\n"
"3:" // Main row loop: Column loop skip
"cmp %x[height], #0x4\n"
"addvl %x[out], %x[out], #12\n"
"bge 1b\n"
"cbz %x[height], 8f\n"
"4:" // Main loop skip
"5:" // Tail row loop: Head
"mov x26, %x[in]\n"
"add %x[in], x26, %x[in_stride]\n"
"mov x22, %x[out]\n"
"sub %x[height], %x[height], #0x1\n"
"mov x21, %x[width]\n"
"6:" // Tail row loop: Column loop
"mov x20, x21\n"
"whilelt p0.h, XZR, x20\n"
"ld1h { z18.h }, p0/Z, [x26]\n"
"dech x20\n"
"whilelt p0.h, XZR, x20\n"
"ld1h { z17.h }, p0/Z, [x26, #1, MUL VL]\n"
"dech x20\n"
"dech x21, ALL, MUL #3\n"
"whilelt p0.h, XZR, x20\n"
"cmp x21, #0x0\n"
"ld1h { z16.h }, p0/Z, [x26, #2, MUL VL]\n"
"st1h { z18.h }, p3, [x22]\n"
"addvl x26, x26, #3\n"
"st1h { z17.h }, p3, [x22, #1, MUL VL]\n"
"st1h { z16.h }, p3, [x22, #2, MUL VL]\n"
"add x22, x22, %x[out_stride]\n"
"bgt 6b\n"
"7:" // Tail row loop: Column loop skip
"cmp %x[height], #0x1\n"
"addvl %x[out], %x[out], #3\n"
"bge 5b\n"
"8:" // 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", "p0", "p1", "p2", "p3", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23", "z24", "z25", "z26", "z27"
);
}
} // anonymous namespace
template<>
void Transform<3, 1, true, VLType::SVE>(
float *out, const float *in, int stride, int x0, int xmax, int k0, int kmax)
{
sve_transpose_interleave_3VL(
reinterpret_cast<uint16_t *>(out),
reinterpret_cast<const uint16_t *>(in + k0 * stride + x0),
(xmax-x0) * sizeof(float) / 2,
stride * sizeof(float),
(kmax-k0)
);
}
template<>
void Transform<3, 1, true, VLType::SVE>(
__fp16 *out, const __fp16 *in, int stride, int x0, int xmax, int k0, int kmax)
{
sve_transpose_interleave_3VL(
reinterpret_cast<uint16_t *>(out),
reinterpret_cast<const uint16_t *>(in + k0 * stride + x0),
(xmax-x0) * sizeof(__fp16) / 2,
stride * sizeof(__fp16),
(kmax-k0)
);
}
template<>
void Transform<3, 1, true, VLType::SVE>(
double *out, const double *in, int stride, int x0, int xmax, int k0, int kmax)
{
sve_transpose_interleave_3VL(
reinterpret_cast<uint16_t *>(out),
reinterpret_cast<const uint16_t *>(in + k0 * stride + x0),
(xmax-x0) * sizeof(double) / 2,
stride * sizeof(double),
(kmax-k0)
);
}
#endif // defined(ARM_COMPUTE_ENABLE_SVE)