diff options
Diffstat (limited to 'src/core/cpu/kernels/CpuDequantizeKernel.cpp')
| -rw-r--r-- | src/core/cpu/kernels/CpuDequantizeKernel.cpp | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/src/core/cpu/kernels/CpuDequantizeKernel.cpp b/src/core/cpu/kernels/CpuDequantizeKernel.cpp new file mode 100644 index 0000000000..42b5439697 --- /dev/null +++ b/src/core/cpu/kernels/CpuDequantizeKernel.cpp @@ -0,0 +1,400 @@ +/* + * Copyright (c) 2017-2021 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. + */ +#include "src/core/cpu/kernels/CpuDequantizeKernel.h" + +#include "arm_compute/core/Error.h" +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/Utils.h" +#include "arm_compute/core/Validate.h" +#include "arm_compute/core/Window.h" +#include "src/core/CPP/Validate.h" +#include "src/core/NEON/NEAsymm.h" +#include "src/core/NEON/NESymm.h" +#include "src/core/NEON/wrapper/wrapper.h" +#include "src/core/helpers/AutoConfiguration.h" +#include "src/core/helpers/WindowHelpers.h" + +#include <arm_neon.h> + +namespace arm_compute +{ +namespace cpu +{ +namespace kernels +{ +namespace +{ +Status validate_arguments(const ITensorInfo *src, const ITensorInfo *dst) +{ + ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src, dst); + ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(src, 1, DataType::QASYMM8, DataType::QASYMM8_SIGNED, DataType::QSYMM8_PER_CHANNEL, DataType::QSYMM8, DataType::QSYMM16); + + if(dst->tensor_shape().total_size() > 0) + { + ARM_COMPUTE_RETURN_ERROR_ON_CPU_F16_UNSUPPORTED(dst); + ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(dst, 1, DataType::F16, DataType::F32); + ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(src, dst); + } + + return Status{}; +} + +template <typename T> +inline void store_result(T *ptr, const float32x4x4_t &v) +{ + ARM_COMPUTE_UNUSED(ptr, v); +} + +template <> +inline void store_result<float>(float *ptr, const float32x4x4_t &v) +{ + wrapper::vstore(ptr, v.val[0]); + wrapper::vstore(ptr + 4, v.val[1]); + wrapper::vstore(ptr + 8, v.val[2]); + wrapper::vstore(ptr + 12, v.val[3]); +} + +#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC +template <> +inline void store_result<float16_t>(float16_t *ptr, const float32x4x4_t &v) +{ + wrapper::vstore(ptr, vcombine_f16(vcvt_f16_f32(v.val[0]), vcvt_f16_f32(v.val[1]))); + wrapper::vstore(ptr + 8, vcombine_f16(vcvt_f16_f32(v.val[2]), vcvt_f16_f32(v.val[3]))); +} +#endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */ + +template <typename T> +inline void store_result(T *ptr, const float32x4x2_t &v) +{ + ARM_COMPUTE_UNUSED(ptr, v); +} + +template <> +inline void store_result<float>(float *ptr, const float32x4x2_t &v) +{ + wrapper::vstore(ptr, v.val[0]); + wrapper::vstore(ptr + 4, v.val[1]); +} + +#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC +template <> +inline void store_result<float16_t>(float16_t *ptr, const float32x4x2_t &v) +{ + wrapper::vstore(ptr, vcombine_f16(vcvt_f16_f32(v.val[0]), vcvt_f16_f32(v.val[1]))); +} +#endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */ + +template <typename TOut, typename TIn> +void run_dequantization_qasymm8(const ITensor *input, ITensor *output, const Window &window) +{ + const UniformQuantizationInfo &qinfo = input->info()->quantization_info().uniform(); + const float scale = qinfo.scale; + const int32_t offset = qinfo.offset; + + const int window_step_x = 16; + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + + // Collapse window and reset first dimension to handle tail calculations manually + Window win_collapsed = window.collapse_if_possible(window, Window::DimZ); + win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1)); + + // Create iterators + Iterator in(input, win_collapsed); + Iterator out(output, win_collapsed); + + execute_window_loop(win_collapsed, [&](const Coordinates &) + { + const auto in_ptr = reinterpret_cast<const TIn *>(in.ptr()); + const auto out_ptr = reinterpret_cast<TOut *>(out.ptr()); + + int x = window_start_x; + for(; x <= (window_end_x - window_step_x); x += window_step_x) + { + const auto vin = wrapper::vloadq(in_ptr + x); + const auto vdeq = vdequantize(vin, scale, offset); + + store_result(reinterpret_cast<TOut *>(out_ptr + x), vdeq); + } + + // Compute left-over elements + for(; x < window_end_x; ++x) + { + auto val = *(in_ptr + x); + *(out_ptr + x) = static_cast<TOut>(Qasymm8QuantizationHelper<TIn>::dequantize(val, qinfo)); + } + }, + in, out); +} + +template <typename T> +void run_dequantization_qsymm8_per_channel_nchw(const ITensor *input, ITensor *output, const Window &window) +{ + const auto scale = input->info()->quantization_info().scale(); + + const int window_step_x = 16; + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + + // Reset first dimension to handle tail calculations manually + Window win(window); + win.set(Window::DimX, Window::Dimension(0, 1, 1)); + + // Create iterators + Iterator in(input, win); + Iterator out(output, win); + + execute_window_loop(win, [&](const Coordinates & id) + { + const auto in_ptr = reinterpret_cast<const int8_t *>(in.ptr()); + const auto out_ptr = reinterpret_cast<T *>(out.ptr()); + + int x = window_start_x; + for(; x <= (window_end_x - window_step_x); x += window_step_x) + { + const auto vin = wrapper::vloadq(in_ptr + x); + const auto vdeq = vdequantize(vin, scale[id.z()]); + + store_result<T>(reinterpret_cast<T *>(out_ptr + x), vdeq); + } + + // Compute left-over elements + for(; x < window_end_x; ++x) + { + int8_t val = *(in_ptr + x); + *(out_ptr + x) = static_cast<T>(dequantize(val, scale[id.z()])); + } + }, + in, out); +} + +template <typename T> +void run_dequantization_qsymm8_per_channel_nhwc(const ITensor *input, ITensor *output, const Window &window) +{ + const auto scale = input->info()->quantization_info().scale(); + + const int window_step_x = 16; + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + + // Reset first dimension to handle tail calculations manually + Window win(window); + win.set(Window::DimX, Window::Dimension(0, 1, 1)); + + // Create iterators + Iterator in(input, win); + Iterator out(output, win); + + execute_window_loop(win, [&](const Coordinates &) + { + const auto in_ptr = reinterpret_cast<const int8_t *>(in.ptr()); + const auto out_ptr = reinterpret_cast<T *>(out.ptr()); + + int x = window_start_x; + for(; x <= (window_end_x - window_step_x); x += window_step_x) + { + const float32x4x4_t vscale = + { + { + scale[x + 0], scale[x + 1], scale[x + 2], scale[x + 3], + scale[x + 4], scale[x + 5], scale[x + 6], scale[x + 7], + scale[x + 8], scale[x + 9], scale[x + 10], scale[x + 11], + scale[x + 12], scale[x + 13], scale[x + 14], scale[x + 15] + } + }; + const auto vin = wrapper::vloadq(in_ptr + x); + const auto vdeq = vdequantize(vin, vscale); + + store_result<T>(reinterpret_cast<T *>(out_ptr + x), vdeq); + } + + // Compute left-over elements + for(; x < window_end_x; ++x) + { + int8_t val = *(in_ptr + x); + *(out_ptr + x) = static_cast<T>(dequantize(val, scale[x])); + } + }, + in, out); +} + +template <typename T> +void run_dequantization_qsymm8(const ITensor *input, ITensor *output, const Window &window) +{ + const UniformQuantizationInfo &qinfo = input->info()->quantization_info().uniform(); + const float scale = qinfo.scale; + + const int window_step_x = 16; + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + + // Collapse window and reset first dimension to handle tail calculations manually + Window win_collapsed = window.collapse_if_possible(window, Window::DimZ); + win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1)); + + // Create iterators + Iterator in(input, win_collapsed); + Iterator out(output, win_collapsed); + + execute_window_loop(win_collapsed, [&](const Coordinates &) + { + const auto in_ptr = reinterpret_cast<const int8_t *>(in.ptr()); + const auto out_ptr = reinterpret_cast<T *>(out.ptr()); + + int x = window_start_x; + for(; x <= (window_end_x - window_step_x); x += window_step_x) + { + const auto vin = wrapper::vloadq(in_ptr + x); + const auto vdeq = vdequantize(vin, scale); + + store_result<T>(reinterpret_cast<T *>(out_ptr + x), vdeq); + } + + // Compute left-over elements + for(; x < window_end_x; ++x) + { + int8_t val = *(in_ptr + x); + *(out_ptr + x) = static_cast<T>(dequantize(val, scale)); + } + }, + in, out); +} + +template <typename T> +void run_dequantization_qsymm16(const ITensor *input, ITensor *output, const Window &window) +{ + const UniformQuantizationInfo &qinfo = input->info()->quantization_info().uniform(); + const float scale = qinfo.scale; + + const int window_step_x = 8; + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + + // Collapse window and reset first dimension to handle tail calculations manually + Window win_collapsed = window.collapse_if_possible(window, Window::DimZ); + win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1)); + + // Create iterators + Iterator in(input, win_collapsed); + Iterator out(output, win_collapsed); + + execute_window_loop(win_collapsed, [&](const Coordinates &) + { + const auto in_ptr = reinterpret_cast<const int16_t *>(in.ptr()); + const auto out_ptr = reinterpret_cast<T *>(out.ptr()); + + int x = window_start_x; + for(; x <= (window_end_x - window_step_x); x += window_step_x) + { + const auto vin = wrapper::vloadq(in_ptr + x); + const auto vdeq = vdequantize_int16(vin, scale); + + store_result<T>(reinterpret_cast<T *>(out_ptr + x), vdeq); + } + + // Compute left-over elements + for(; x < window_end_x; ++x) + { + int16_t val = *(in_ptr + x); + *(out_ptr + x) = static_cast<T>(dequantize_qsymm16(val, scale)); + } + }, + in, out); +} + +template <typename T> +void run_dequantization_core(const ITensor *input, ITensor *output, const Window &window) +{ + switch(input->info()->data_type()) + { + case DataType::QASYMM8: + run_dequantization_qasymm8<T, uint8_t>(input, output, window); + break; + case DataType::QASYMM8_SIGNED: + run_dequantization_qasymm8<T, int8_t>(input, output, window); + break; + case DataType::QSYMM8_PER_CHANNEL: + input->info()->data_layout() == DataLayout::NHWC ? run_dequantization_qsymm8_per_channel_nhwc<T>(input, output, window) : run_dequantization_qsymm8_per_channel_nchw<T>(input, output, window); + break; + case DataType::QSYMM8: + run_dequantization_qsymm8<T>(input, output, window); + break; + case DataType::QSYMM16: + run_dequantization_qsymm16<T>(input, output, window); + break; + default: + ARM_COMPUTE_ERROR("Unsupported data type."); + } +} +} // namespace + +void CpuDequantizeKernel::configure(const ITensorInfo *src, ITensorInfo *dst) +{ + ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(src, dst)); + + // Configure kernel window + Window win = calculate_max_window(*src, Steps()); + + // Output tensor auto initialization if not yet initialized + auto_init_if_empty(*dst, src->tensor_shape(), 1, DataType::F32); + + ICpuKernel::configure(win); +} + +Status CpuDequantizeKernel::validate(const ITensorInfo *src, const ITensorInfo *dst) +{ + ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(src, dst)); + return Status{}; +} + +void CpuDequantizeKernel::run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) +{ + ARM_COMPUTE_UNUSED(info); + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICpuKernel::window(), window); + + const auto src = tensors.get_const_tensor(TensorType::ACL_SRC); + auto dst = tensors.get_tensor(TensorType::ACL_DST); + + switch(dst->info()->data_type()) + { + case DataType::F32: + run_dequantization_core<float>(src, dst, window); + break; +#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC + case DataType::F16: + run_dequantization_core<float16_t>(src, dst, window); + break; +#endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */ + default: + ARM_COMPUTE_ERROR("Unsupported data type."); + } +} +const char *CpuDequantizeKernel::name() const +{ + return "CpuDequantizeKernel"; +} +} // namespace kernels +} // namespace cpu +} // namespace arm_compute |