Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016, 2017 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 "arm_compute/runtime/CL/CLTensorAllocator.h" |
| 25 | |
| 26 | #include "arm_compute/core/Error.h" |
| 27 | #include "arm_compute/core/TensorInfo.h" |
| 28 | #include "arm_compute/runtime/CL/CLScheduler.h" |
| 29 | |
| 30 | using namespace arm_compute; |
| 31 | |
| 32 | CLTensorAllocator::CLTensorAllocator() |
| 33 | : _buffer(), _mapping(nullptr) |
| 34 | { |
| 35 | } |
| 36 | |
| 37 | uint8_t *CLTensorAllocator::data() |
| 38 | { |
| 39 | return _mapping; |
| 40 | } |
| 41 | |
| 42 | const cl::Buffer &CLTensorAllocator::cl_data() const |
| 43 | { |
| 44 | return _buffer; |
| 45 | } |
| 46 | |
| 47 | void CLTensorAllocator::allocate() |
| 48 | { |
| 49 | ARM_COMPUTE_ERROR_ON(_buffer.get() != nullptr); |
| 50 | |
| 51 | _buffer = cl::Buffer(CLScheduler::get().context(), CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, info().total_size()); |
| 52 | info().set_is_resizable(false); |
| 53 | } |
| 54 | |
| 55 | void CLTensorAllocator::free() |
| 56 | { |
| 57 | ARM_COMPUTE_ERROR_ON(_buffer.get() == nullptr); |
| 58 | |
| 59 | _buffer = cl::Buffer(); |
| 60 | info().set_is_resizable(true); |
| 61 | } |
| 62 | |
| 63 | uint8_t *CLTensorAllocator::lock() |
| 64 | { |
| 65 | ARM_COMPUTE_ERROR_ON(_mapping != nullptr); |
| 66 | _mapping = map(CLScheduler::get().queue(), true); |
| 67 | return _mapping; |
| 68 | } |
| 69 | |
| 70 | void CLTensorAllocator::unlock() |
| 71 | { |
| 72 | ARM_COMPUTE_ERROR_ON(_mapping == nullptr); |
| 73 | unmap(CLScheduler::get().queue(), _mapping); |
| 74 | _mapping = nullptr; |
| 75 | } |
| 76 | |
| 77 | uint8_t *CLTensorAllocator::map(cl::CommandQueue &q, bool blocking) |
| 78 | { |
| 79 | ARM_COMPUTE_ERROR_ON(_buffer.get() == nullptr); |
| 80 | return static_cast<uint8_t *>(q.enqueueMapBuffer(_buffer, blocking ? CL_TRUE : CL_FALSE, CL_MAP_READ | CL_MAP_WRITE, 0, info().total_size())); |
| 81 | } |
| 82 | |
| 83 | void CLTensorAllocator::unmap(cl::CommandQueue &q, uint8_t *mapping) |
| 84 | { |
| 85 | ARM_COMPUTE_ERROR_ON(_buffer.get() == nullptr); |
| 86 | q.enqueueUnmapMemObject(_buffer, mapping); |
| 87 | } |