| /* |
| * Copyright (c) 2017-2020 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 "arm_compute/runtime/OffsetLifetimeManager.h" |
| |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/runtime/IAllocator.h" |
| #include "arm_compute/runtime/IMemoryGroup.h" |
| #include "arm_compute/runtime/OffsetMemoryPool.h" |
| |
| #include <algorithm> |
| #include <cmath> |
| #include <map> |
| #include <vector> |
| |
| namespace arm_compute |
| { |
| namespace |
| { |
| size_t align_offset(size_t offset, size_t alignment) |
| { |
| const size_t remainder = (alignment != 0U) ? offset % alignment : 0U; |
| return (remainder != 0U) ? offset + (alignment - remainder) : offset; |
| } |
| } // namespace |
| OffsetLifetimeManager::OffsetLifetimeManager() |
| : _blob(0) |
| { |
| } |
| |
| const OffsetLifetimeManager::info_type &OffsetLifetimeManager::info() const |
| { |
| return _blob; |
| } |
| |
| std::unique_ptr<IMemoryPool> OffsetLifetimeManager::create_pool(IAllocator *allocator) |
| { |
| ARM_COMPUTE_ERROR_ON(allocator == nullptr); |
| return std::make_unique<OffsetMemoryPool>(allocator, _blob); |
| } |
| |
| MappingType OffsetLifetimeManager::mapping_type() const |
| { |
| return MappingType::OFFSETS; |
| } |
| |
| void OffsetLifetimeManager::update_blobs_and_mappings() |
| { |
| ARM_COMPUTE_ERROR_ON(!are_all_finalized()); |
| ARM_COMPUTE_ERROR_ON(_active_group == nullptr); |
| |
| // Update blob size |
| size_t max_aggregated_size = 0; |
| std::for_each(std::begin(_free_blobs), std::end(_free_blobs), [&](const Blob & b) |
| { |
| max_aggregated_size += b.max_size; |
| _blob.alignment = std::max(_blob.alignment, b.max_alignment); |
| }); |
| max_aggregated_size += _free_blobs.size() * _blob.alignment; |
| _blob.owners = std::max(_blob.owners, _free_blobs.size()); |
| _blob.size = std::max(_blob.size, max_aggregated_size); |
| |
| // Calculate group mappings |
| auto &group_mappings = _active_group->mappings(); |
| size_t offset = 0; |
| for(auto &free_blob : _free_blobs) |
| { |
| for(auto &bound_element_id : free_blob.bound_elements) |
| { |
| ARM_COMPUTE_ERROR_ON(_active_elements.find(bound_element_id) == std::end(_active_elements)); |
| Element &bound_element = _active_elements[bound_element_id]; |
| group_mappings[bound_element.handle] = offset; |
| } |
| offset += free_blob.max_size; |
| offset = align_offset(offset, _blob.alignment); |
| ARM_COMPUTE_ERROR_ON(offset > _blob.size); |
| } |
| } |
| } // namespace arm_compute |