1 /*
2 * Copyright (c) 2017-2020 Arm Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24 #include <algorithm>
25
26 #include "arm_compute/runtime/OffsetMemoryPool.h"
27
28 #include "arm_compute/core/Error.h"
29 #include "arm_compute/runtime/IAllocator.h"
30 #include "arm_compute/runtime/IMemoryPool.h"
31 #include "arm_compute/runtime/MemoryRegion.h"
32 #include "arm_compute/runtime/Types.h"
33
34 namespace arm_compute
35 {
OffsetMemoryPool(IAllocator * allocator,BlobInfo blob_info)36 OffsetMemoryPool::OffsetMemoryPool(IAllocator *allocator, BlobInfo blob_info)
37 : _allocator(allocator), _blob(), _blob_info(blob_info)
38 {
39 ARM_COMPUTE_ERROR_ON(!allocator);
40 _blob = _allocator->make_region(blob_info.size, blob_info.alignment);
41 }
42
info() const43 const BlobInfo &OffsetMemoryPool::info() const
44 {
45 return _blob_info;
46 }
47
acquire(MemoryMappings & handles)48 void OffsetMemoryPool::acquire(MemoryMappings &handles)
49 {
50 ARM_COMPUTE_ERROR_ON(_blob == nullptr);
51
52 // Set memory to handlers
53 for(auto &handle : handles)
54 {
55 ARM_COMPUTE_ERROR_ON(handle.first == nullptr);
56 handle.first->set_owned_region(_blob->extract_subregion(handle.second, _blob_info.size - handle.second));
57 }
58 }
59
release(MemoryMappings & handles)60 void OffsetMemoryPool::release(MemoryMappings &handles)
61 {
62 for(auto &handle : handles)
63 {
64 ARM_COMPUTE_ERROR_ON(handle.first == nullptr);
65 handle.first->set_region(nullptr);
66 }
67 }
68
mapping_type() const69 MappingType OffsetMemoryPool::mapping_type() const
70 {
71 return MappingType::OFFSETS;
72 }
73
duplicate()74 std::unique_ptr<IMemoryPool> OffsetMemoryPool::duplicate()
75 {
76 ARM_COMPUTE_ERROR_ON(!_allocator);
77 return std::make_unique<OffsetMemoryPool>(_allocator, _blob_info);
78 }
79 } // namespace arm_compute
80