From 511347a7282b948bddfc071e9a8fa08e79da25b4 Mon Sep 17 00:00:00 2001 From: Georgios Pinitas Date: Mon, 18 Sep 2017 18:33:07 +0100 Subject: 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 Reviewed-by: Anthony Barbier --- arm_compute/runtime/OffsetMemoryPool.h | 72 ++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 arm_compute/runtime/OffsetMemoryPool.h (limited to 'arm_compute/runtime/OffsetMemoryPool.h') diff --git a/arm_compute/runtime/OffsetMemoryPool.h b/arm_compute/runtime/OffsetMemoryPool.h new file mode 100644 index 0000000000..9685fd1319 --- /dev/null +++ b/arm_compute/runtime/OffsetMemoryPool.h @@ -0,0 +1,72 @@ +/* + * 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. + */ +#ifndef __ARM_COMPUTE_OFFSETMEMORYPOOL_H__ +#define __ARM_COMPUTE_OFFSETMEMORYPOOL_H__ + +#include "arm_compute/runtime/IMemoryPool.h" + +#include "arm_compute/runtime/Types.h" + +#include + +namespace arm_compute +{ +class IAllocator; + +/** Offset based memory pool */ +class OffsetMemoryPool : public IMemoryPool +{ +public: + /** Default Constructor + * + * @note allocator should outlive the memory pool + * + * @param[in] allocator Backing memory allocator + * @param[in] blob_size Size of the memory be allocated + */ + OffsetMemoryPool(IAllocator *allocator, size_t blob_size); + /** Default Destructor */ + ~OffsetMemoryPool(); + /** Prevent instances of this class to be copy constructed */ + OffsetMemoryPool(const OffsetMemoryPool &) = delete; + /** Prevent instances of this class to be copy assigned */ + OffsetMemoryPool &operator=(const OffsetMemoryPool &) = delete; + /** Allow instances of this class to be move constructed */ + OffsetMemoryPool(OffsetMemoryPool &&) = default; + /** Allow instances of this class to be move assigned */ + OffsetMemoryPool &operator=(OffsetMemoryPool &&) = default; + + // Inherited methods overridden: + void acquire(MemoryMappings &handles) override; + void release(MemoryMappings &handles) override; + MappingType mapping_type() const override; + std::unique_ptr duplicate() override; + +private: + IAllocator *_allocator; /**< Allocator to use for internal allocation */ + void *_blob; /**< Memory blob */ + size_t _blob_size; /**< Sizes of the allocated memory blob */ +}; +} // namespace arm_compute +#endif /* __ARM_COMPUTE_OFFSETMEMORYPOOL_H__ */ -- cgit v1.2.1