diff options
Diffstat (limited to 'src/cpu/kernels/cast/generic/neon/fp16.cpp')
| -rw-r--r-- | src/cpu/kernels/cast/generic/neon/fp16.cpp | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/src/cpu/kernels/cast/generic/neon/fp16.cpp b/src/cpu/kernels/cast/generic/neon/fp16.cpp new file mode 100644 index 0000000000..2897f4b242 --- /dev/null +++ b/src/cpu/kernels/cast/generic/neon/fp16.cpp @@ -0,0 +1,380 @@ +/* + * Copyright (c) 2016-2023 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. + */ +#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS) + +#include "arm_compute/core/CPP/CPPTypes.h" +#include "arm_compute/core/TensorInfo.h" + +#include "src/cpu/kernels/cast/list.h" +#include "src/cpu/kernels/CpuCastKernel.h" +#include "support/SaturateCast.h" + +#include "arm_neon.h" + +namespace arm_compute +{ +namespace cpu +{ +void neon_qasymm8_signed_to_fp16_cast( + const ITensor *_src, ITensor *_dst, const ThreadInfo &info, ConvertPolicy _policy, const Window &window) +{ + ARM_COMPUTE_UNUSED(info); + ARM_COMPUTE_UNUSED(_policy); + + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + const int window_step_x = 16; + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + ARM_COMPUTE_ERROR_ON(_src == _dst); + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + + Window win{window}; + win.set(Window::DimX, Window::Dimension(0, 1, 1)); + + Iterator src(_src, win); + Iterator dst(_dst, win); + execute_window_loop( + win, + [&](const Coordinates &) + { + const auto src_ptr = reinterpret_cast<const int8_t *>(src.ptr()); + const auto dst_ptr = reinterpret_cast<float16_t *>(dst.ptr()); + int x = window_start_x; + + for (; x <= (window_end_x - window_step_x); x += window_step_x) + { + const int8x16_t texels_s8 = vld1q_s8(src_ptr + x); + + const int16x8x2_t texels = {{vmovl_s8(vget_low_s8(texels_s8)), vmovl_s8(vget_high_s8(texels_s8))}}; + vst1q_f16(dst_ptr + x, vcvtq_f16_s16(texels.val[0])); + vst1q_f16(dst_ptr + x + 8, vcvtq_f16_s16(texels.val[1])); + } + + // Compute left-over elements + for (; x < window_end_x; ++x) + { + *(dst_ptr + x) = static_cast<float16_t>(*(src_ptr + x)); + } + }, + src, dst); +} + +void neon_s32_to_fp16_cast( + const ITensor *_src, ITensor *_dst, const ThreadInfo &info, ConvertPolicy _policy, const Window &window) +{ + ARM_COMPUTE_UNUSED(info); + ARM_COMPUTE_UNUSED(_policy); + + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + const int window_step_x = 16; + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + ARM_COMPUTE_ERROR_ON(_src == _dst); + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + + Window win{window}; + win.set(Window::DimX, Window::Dimension(0, 1, 1)); + + Iterator src(_src, win); + Iterator dst(_dst, win); + + execute_window_loop( + win, + [&](const Coordinates &) + { + const auto src_ptr = reinterpret_cast<const int32_t *>(src.ptr()); + const auto dst_ptr = reinterpret_cast<float16_t *>(dst.ptr()); + + int x = window_start_x; + for (; x <= (window_end_x - window_step_x); x += window_step_x) + { + const float32x4x4_t texels = { + {vcvtq_f32_s32(vld1q_s32(src_ptr + x)), vcvtq_f32_s32(vld1q_s32(src_ptr + x + 4)), + vcvtq_f32_s32(vld1q_s32(src_ptr + x + 8)), vcvtq_f32_s32(vld1q_s32(src_ptr + x + 12))}}; + + vst1q_f16(dst_ptr + x, vcombine_f16(vcvt_f16_f32(texels.val[0]), vcvt_f16_f32(texels.val[1]))); + vst1q_f16(dst_ptr + x + 8, vcombine_f16(vcvt_f16_f32(texels.val[2]), vcvt_f16_f32(texels.val[3]))); + } + + // Compute left-over elements + for (; x < window_end_x; ++x) + { + *(dst_ptr + x) = static_cast<float16_t>(*(src_ptr + x)); + } + }, + src, dst); +} + +void neon_fp32_to_fp16_cast( + const ITensor *_src, ITensor *_dst, const ThreadInfo &info, ConvertPolicy _policy, const Window &window) +{ + ARM_COMPUTE_UNUSED(info); + ARM_COMPUTE_UNUSED(_policy); + + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + const int window_step_x = 16; + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + ARM_COMPUTE_ERROR_ON(_src == _dst); + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + + Window win{window}; + win.set(Window::DimX, Window::Dimension(0, 1, 1)); + + Iterator src(_src, win); + Iterator dst(_dst, win); + + execute_window_loop( + win, + [&](const Coordinates &) + { + const auto src_ptr = reinterpret_cast<const float *>(src.ptr()); + const auto dst_ptr = reinterpret_cast<float16_t *>(dst.ptr()); + + int x = window_start_x; + for (; x <= (window_end_x - window_step_x); x += window_step_x) + { + const float32x4x4_t texels = {{vld1q_f32(src_ptr + x), vld1q_f32(src_ptr + x + 4), + vld1q_f32(src_ptr + x + 8), vld1q_f32(src_ptr + x + 12)}}; + + vst1q_f16(dst_ptr + x, vcombine_f16(vcvt_f16_f32(texels.val[0]), vcvt_f16_f32(texels.val[1]))); + vst1q_f16(dst_ptr + x + 8, vcombine_f16(vcvt_f16_f32(texels.val[2]), vcvt_f16_f32(texels.val[3]))); + } + + // Compute left-over elements + for (; x < window_end_x; ++x) + { + *(dst_ptr + x) = static_cast<float16_t>(*(src_ptr + x)); + } + }, + src, dst); +} + +void neon_fp16_to_other_dt_cast( + const ITensor *_src, ITensor *_dst, const ThreadInfo &info, ConvertPolicy _policy, const Window &window) +{ + ARM_COMPUTE_UNUSED(info); + ARM_COMPUTE_UNUSED(_policy); + + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + const int window_step_x = 16; + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + ARM_COMPUTE_ERROR_ON(_src == _dst); + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + + Window win{window}; + win.set(Window::DimX, Window::Dimension(0, 1, 1)); + + Iterator src(_src, win); + Iterator dst(_dst, win); + switch (_dst->info()->data_type()) + { + case DataType::QASYMM8_SIGNED: + { + /* Down-conversion F16 -> QASYMM8_SIGNED (Always saturating) */ + execute_window_loop( + win, + [&](const Coordinates &) + { + const auto src_ptr = reinterpret_cast<const float16_t *>(src.ptr()); + const auto dst_ptr = reinterpret_cast<int8_t *>(dst.ptr()); + + int x = window_start_x; + for (; x <= (window_end_x - window_step_x); x += window_step_x) + { + const float16x8x2_t texels = {{ + vld1q_f16(src_ptr + x), + vld1q_f16(src_ptr + x + 8), + }}; + + vst1q_s8(dst_ptr + x, vcombine_s8(vqmovn_s16(vcvtq_s16_f16(texels.val[0])), + vqmovn_s16(vcvtq_s16_f16(texels.val[1])))); + } + + // Compute left-over elements + for (; x < window_end_x; ++x) + { + *(dst_ptr + x) = utils::cast::saturate_cast<int8_t>(*(src_ptr + x)); + } + }, + src, dst); + break; + } + case DataType::QASYMM8: + case DataType::U8: + { + /* Down-conversion F16 -> QASYMM8/U8 (Always saturating) */ + execute_window_loop( + win, + [&](const Coordinates &) + { + const auto src_ptr = reinterpret_cast<const float16_t *>(src.ptr()); + const auto dst_ptr = reinterpret_cast<uint8_t *>(dst.ptr()); + + int x = window_start_x; + for (; x <= (window_end_x - window_step_x); x += window_step_x) + { + const float16x8x2_t texels = {{ + vld1q_f16(src_ptr + x), + vld1q_f16(src_ptr + x + 8), + }}; + + vst1q_u8(dst_ptr + x, vcombine_u8(vqmovun_s16(vcvtq_s16_f16(texels.val[0])), + vqmovun_s16(vcvtq_s16_f16(texels.val[1])))); + } + + // Compute left-over elements + for (; x < window_end_x; ++x) + { + *(dst_ptr + x) = utils::cast::saturate_cast<uint8_t>(*(src_ptr + x)); + } + }, + src, dst); + break; + } + case DataType::F32: + { + /* Up-conversion F16 -> F32 */ + execute_window_loop( + win, + [&](const Coordinates &) + { + const auto src_ptr = reinterpret_cast<const float16_t *>(src.ptr()); + const auto dst_ptr = reinterpret_cast<float *>(dst.ptr()); + + int x = window_start_x; + for (; x <= (window_end_x - window_step_x); x += window_step_x) + { + const float16x8x2_t texels = {{vld1q_f16(src_ptr + x), vld1q_f16(src_ptr + x + 8)}}; + vst1q_f32(dst_ptr + x, vcvt_f32_f16(vget_low_f16(texels.val[0]))); + vst1q_f32(dst_ptr + x + 4, vcvt_f32_f16(vget_high_f16(texels.val[0]))); + vst1q_f32(dst_ptr + x + 8, vcvt_f32_f16(vget_low_f16(texels.val[1]))); + vst1q_f32(dst_ptr + x + 12, vcvt_f32_f16(vget_high_f16(texels.val[1]))); + } + + // Compute left-over elements + for (; x < window_end_x; ++x) + { + *(dst_ptr + x) = static_cast<float>(*(src_ptr + x)); + } + }, + src, dst); + break; + } + case DataType::S32: + { + /* Up-conversion F16 -> S32 */ + execute_window_loop( + win, + [&](const Coordinates &) + { + const auto src_ptr = reinterpret_cast<const float16_t *>(src.ptr()); + const auto dst_ptr = reinterpret_cast<int32_t *>(dst.ptr()); + + int x = window_start_x; + for (; x <= (window_end_x - window_step_x); x += window_step_x) + { + const float16x8x2_t texels = {{vld1q_f16(src_ptr + x), vld1q_f16(src_ptr + x + 8)}}; + + vst1q_s32(dst_ptr + x, vcvtq_s32_f32(vcvt_f32_f16(vget_low_f16(texels.val[0])))); + vst1q_s32(dst_ptr + x + 4, vcvtq_s32_f32(vcvt_f32_f16(vget_high_f16(texels.val[0])))); + vst1q_s32(dst_ptr + x + 8, vcvtq_s32_f32(vcvt_f32_f16(vget_low_f16(texels.val[1])))); + vst1q_s32(dst_ptr + x + 12, vcvtq_s32_f32(vcvt_f32_f16(vget_high_f16(texels.val[1])))); + } + + // Compute left-over elements + for (; x < window_end_x; ++x) + { + *(dst_ptr + x) = static_cast<int32_t>(*(src_ptr + x)); + } + }, + src, dst); + break; + } + default: + ARM_COMPUTE_ERROR("dst data type not supported"); + } +} + +void neon_u8_to_fp16_cast( + const ITensor *_src, ITensor *_dst, const ThreadInfo &info, ConvertPolicy _policy, const Window &window) +{ + ARM_COMPUTE_UNUSED(info); + ARM_COMPUTE_UNUSED(_policy); + + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + const int window_step_x = 16; + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + ARM_COMPUTE_ERROR_ON(_src == _dst); + + ARM_COMPUTE_ERROR_ON_NULLPTR(_src, _dst); + + Window win{window}; + win.set(Window::DimX, Window::Dimension(0, 1, 1)); + + Iterator src(_src, win); + Iterator dst(_dst, win); + /* Up-conversion U8 -> F16 */ + execute_window_loop( + win, + [&](const Coordinates &) + { + const auto src_ptr = reinterpret_cast<const uint8_t *>(src.ptr()); + const auto dst_ptr = reinterpret_cast<float16_t *>(dst.ptr()); + + int x = window_start_x; + for (; x <= (window_end_x - window_step_x); x += window_step_x) + { + const uint8x16_t texels_u8 = vld1q_u8(src_ptr + x); + + const int16x8x2_t texels = {{vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(texels_u8))), + vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(texels_u8)))}}; + vst1q_f16(dst_ptr + x, vcvtq_f16_s16(texels.val[0])); + vst1q_f16(dst_ptr + x + 8, vcvtq_f16_s16(texels.val[1])); + } + + // Compute left-over elements + for (; x < window_end_x; ++x) + { + *(dst_ptr + x) = static_cast<float16_t>(*(src_ptr + x)); + } + }, + src, dst); + return; +} + +} // namespace cpu +} // namespace arm_compute +#endif /* #if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS) */ |