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author | Georgios Pinitas <georgios.pinitas@arm.com> | 2017-09-18 18:33:07 +0100 |
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committer | Anthony Barbier <anthony.barbier@arm.com> | 2018-11-02 16:35:24 +0000 |
commit | 511347a7282b948bddfc071e9a8fa08e79da25b4 (patch) | |
tree | fc1d9aea0c6679ff758407da5bd32a954b578d6e /src/runtime/OffsetLifetimeManager.cpp | |
parent | 96880cf00707d394938ec7fe31c21c79a2ac3f0c (diff) | |
download | ComputeLibrary-511347a7282b948bddfc071e9a8fa08e79da25b4.tar.gz |
COMPMID-485: Offset-based memory manager support.
Adds support for offset-based memory mappings used from CPU system
memory and SVM based allocations.
Change-Id: Ibee6a3c02a61df9b11fe8878cfe40dc6fd9a4be0
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/88307
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Diffstat (limited to 'src/runtime/OffsetLifetimeManager.cpp')
-rw-r--r-- | src/runtime/OffsetLifetimeManager.cpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/runtime/OffsetLifetimeManager.cpp b/src/runtime/OffsetLifetimeManager.cpp new file mode 100644 index 0000000000..4540aeab28 --- /dev/null +++ b/src/runtime/OffsetLifetimeManager.cpp @@ -0,0 +1,76 @@ +/* + * Copyright (c) 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 "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> + +using namespace arm_compute; + +OffsetLifetimeManager::OffsetLifetimeManager() + : _blob(0) +{ +} + +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_group_size = std::accumulate(std::begin(_active_elements), std::end(_active_elements), static_cast<size_t>(0), [](size_t s, const Element & e) + { + return s + e.size; + }); + _blob = std::max(_blob, max_group_size); + + // Calculate group mappings + auto &group_mappings = _active_group->mappings(); + size_t offset = 0; + for(auto &e : _active_elements) + { + group_mappings[e.handle] = offset; + offset += e.size; + ARM_COMPUTE_ERROR_ON(offset > _blob); + } +} |