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/*
* Copyright (c) 2017-2019 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 "support/ToolchainSupport.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 support::cpp14::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
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