| /* |
| * Copyright (c) 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. |
| */ |
| #include "helpers.h" |
| #include "warp_helpers.h" |
| |
| #if defined(DATA_TYPE) && defined(OPERATION) |
| |
| #if defined(VEC_SIZE) && defined(LAST_ACCESSED_X) |
| /** Calculate reverse square root |
| * |
| * @param[in] input Pointer to the first element. |
| * |
| * @return reverse square root |
| */ |
| inline VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) inverse_sqrt(const VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) input) |
| { |
| return rsqrt(input); |
| } |
| |
| /** Calculate exponential |
| * |
| * @param[in] input Pointer to the first element. |
| * |
| * @return exponential |
| */ |
| inline VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) exponential(const VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) input) |
| { |
| return exp(input); |
| } |
| #else // !defined(VEC_SIZE) || !defined(LAST_ACCESSED_X) |
| /** Calculate reverse square root |
| * |
| * @param[in] input Single element. |
| * |
| * @return reverse square root |
| */ |
| inline DATA_TYPE inverse_sqrt(const DATA_TYPE input) |
| { |
| return rsqrt(input); |
| } |
| |
| /** Calculate exponential |
| * |
| * @param[in] input Single element. |
| * |
| * @return exponential |
| */ |
| inline DATA_TYPE exponential(const DATA_TYPE input) |
| { |
| return exp(input); |
| } |
| #endif // defined(VEC_SIZE) && defined(LAST_ACCESSED_X) |
| |
| /** Applies element wise unary operator in a tensor. |
| * |
| * @param[in] in_ptr Pointer to the source image. Supported data types: F16/32. |
| * @param[in] in_stride_x Stride of the source image in X dimension (in bytes) |
| * @param[in] in_step_x in_stride_x * number of elements along X processed per work item (in bytes) |
| * @param[in] in_offset_first_element_in_bytes Offset of the first element in the source image |
| * @param[out] out_ptr Pointer to the destination image. Supported data types: F16/32. |
| * @param[in] out_stride_x Stride of the destination image in X dimension (in bytes) |
| * @param[in] out_step_y out_stride_y * number of elements along Y processed per work item (in bytes) |
| * @param[in] out_offset_first_element_in_bytes Offset of the first element in the destination image |
| */ |
| __kernel void elementwise_unary( |
| VECTOR_DECLARATION(in), |
| VECTOR_DECLARATION(out)) |
| { |
| Vector in = CONVERT_TO_VECTOR_STRUCT(in); |
| Vector out = CONVERT_TO_VECTOR_STRUCT(out); |
| |
| #if defined(VEC_SIZE) && defined(LAST_ACCESSED_X) |
| // Check if access on width gets out of bounds |
| // If it does shift access vector to access elements within bounds |
| const int xi = (int)(get_global_id(0) * VEC_SIZE); |
| in.ptr -= max(xi - (int)LAST_ACCESSED_X, 0) * in_stride_x; |
| out.ptr -= max(xi - (int)LAST_ACCESSED_X, 0) * out_stride_x; |
| |
| VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) |
| data = VLOAD(VEC_SIZE)(0, (__global DATA_TYPE *)in.ptr); |
| |
| VSTORE(VEC_SIZE) |
| (OPERATION(data), 0, (__global DATA_TYPE *)out.ptr); |
| #else // !defined(VEC_SIZE) || !defined(LAST_ACCESSED_X) |
| *((__global DATA_TYPE *)(out.ptr)) = (DATA_TYPE)(OPERATION(*((__global DATA_TYPE *)in.ptr))); |
| #endif // defined(VEC_SIZE) && defined(LAST_ACCESSED_X) |
| } |
| #endif // defined(DATA_TYPE) && defined(OPERATION) |