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Diffstat (limited to 'src/core/CL/cl_kernels/l2_normalize.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/l2_normalize.cl | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/core/CL/cl_kernels/l2_normalize.cl b/src/core/CL/cl_kernels/l2_normalize.cl new file mode 100644 index 0000000000..8d47631019 --- /dev/null +++ b/src/core/CL/cl_kernels/l2_normalize.cl @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2016, 2017 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 "helpers.h" + +/** This kernel performs reduction given an operation. + * + * @note The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float + * @note The data size must be passed at compile time using -DDATA_SIZE e.g. -DDATA_SIZE=32 + * + * @param[in] src_ptr Pointer to the source tensor. Supported data types: QS8/F16/F32 + * @param[in] src_stride_x Stride of the source tensor in X dimension (in bytes) + * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[in] sum_ptr Pointer to the source tensor. Supported data types: QS8/F16/F32 + * @param[in] sum_stride_x Stride of the source tensor in X dimension (in bytes) + * @param[in] sum_step_x sum_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] sum_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr + * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) + * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor + * @param[in] epsilon Epsilon value + */ +__kernel void l2_normalize( + VECTOR_DECLARATION(src), + VECTOR_DECLARATION(sum), + VECTOR_DECLARATION(dst), + DATA_TYPE epsilon) +{ + Vector src = CONVERT_TO_VECTOR_STRUCT(src); + Vector sum = CONVERT_TO_VECTOR_STRUCT(sum); + Vector dst = CONVERT_TO_VECTOR_STRUCT(dst); + + VEC_DATA_TYPE(DATA_TYPE, 16) + in = vload16(0, (__global DATA_TYPE *)src.ptr); + VEC_DATA_TYPE(DATA_TYPE, 16) + normalize_value = (VEC_DATA_TYPE(DATA_TYPE, 16))native_rsqrt(fmax(((__global DATA_TYPE *)sum.ptr)[0], epsilon)); + + vstore16(in * normalize_value, 0, (__global DATA_TYPE *)dst.ptr); +}
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