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/*
* Copyright (c) 2018-2021, 2023 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/CL/CLMemoryRegion.h"
#include "arm_compute/core/Error.h"
#include "arm_compute/runtime/CL/CLScheduler.h"
#include "src/common/utils/Log.h"
namespace arm_compute
{
ICLMemoryRegion::ICLMemoryRegion(size_t size)
: IMemoryRegion(size), _ctx(CLScheduler::get().context()), _mapping(nullptr), _mem()
{
}
const cl::Buffer &ICLMemoryRegion::cl_data() const
{
return _mem;
}
void *ICLMemoryRegion::buffer()
{
return _mapping;
}
const void *ICLMemoryRegion::buffer() const
{
return _mapping;
}
std::unique_ptr<IMemoryRegion> ICLMemoryRegion::extract_subregion(size_t offset, size_t size)
{
ARM_COMPUTE_UNUSED(offset, size);
return nullptr;
}
CLBufferMemoryRegion::CLBufferMemoryRegion(cl_mem_flags flags, size_t size) : ICLMemoryRegion(size)
{
if (_size != 0)
{
_mem = cl::Buffer(CLScheduler::get().context(), flags, _size);
}
}
CLBufferMemoryRegion::CLBufferMemoryRegion(const cl::Buffer &buffer) : ICLMemoryRegion(buffer.getInfo<CL_MEM_SIZE>())
{
_mem = buffer;
}
CLBufferMemoryRegion::~CLBufferMemoryRegion()
{
// Flush the command queue to ensure all commands that may use this memory buffer are scheduled to be finished before
// this buffer is freed
// Do not call finish as it is a blocking call which affects the performance
try
{
CLScheduler::get().queue().flush();
}
catch (const std::exception &e)
{
ARM_COMPUTE_LOG_ERROR_ACL(e.what());
}
}
void *CLBufferMemoryRegion::ptr()
{
return nullptr;
}
void *CLBufferMemoryRegion::map(cl::CommandQueue &q, bool blocking)
{
ARM_COMPUTE_ERROR_ON(_mem.get() == nullptr);
_mapping = q.enqueueMapBuffer(_mem, blocking ? CL_TRUE : CL_FALSE, CL_MAP_READ | CL_MAP_WRITE, 0, _size);
return _mapping;
}
void CLBufferMemoryRegion::unmap(cl::CommandQueue &q)
{
ARM_COMPUTE_ERROR_ON(_mem.get() == nullptr);
q.enqueueUnmapMemObject(_mem, _mapping);
_mapping = nullptr;
}
ICLSVMMemoryRegion::ICLSVMMemoryRegion(cl_mem_flags flags, size_t size, size_t alignment)
: ICLMemoryRegion(size), _ptr(nullptr)
{
if (size != 0)
{
_ptr = clSVMAlloc(CLScheduler::get().context().get(), flags, size, alignment);
if (_ptr != nullptr)
{
_mem = cl::Buffer(CLScheduler::get().context(), CL_MEM_READ_WRITE | CL_MEM_USE_HOST_PTR, _size, _ptr);
}
}
}
ICLSVMMemoryRegion::~ICLSVMMemoryRegion()
{
if (_ptr != nullptr)
{
try
{
// Can only use the blocking finish instead of the non-blocking flush here, because clSVMFree requires all
// commands that may use the svm pointer to finish beforehand
// https://registry.khronos.org/OpenCL/sdk/3.0/docs/man/html/clSVMFree.html
clFinish(CLScheduler::get().queue().get());
_mem = cl::Buffer();
clSVMFree(_ctx.get(), _ptr);
}
catch (...)
{
}
}
}
void *ICLSVMMemoryRegion::ptr()
{
return _ptr;
}
CLCoarseSVMMemoryRegion::CLCoarseSVMMemoryRegion(cl_mem_flags flags, size_t size, size_t alignment)
: ICLSVMMemoryRegion(flags, size, alignment)
{
}
void *CLCoarseSVMMemoryRegion::map(cl::CommandQueue &q, bool blocking)
{
ARM_COMPUTE_ERROR_ON(_ptr == nullptr);
clEnqueueSVMMap(q.get(), blocking ? CL_TRUE : CL_FALSE, CL_MAP_READ | CL_MAP_WRITE, _ptr, _size, 0, nullptr,
nullptr);
_mapping = _ptr;
return _mapping;
}
void CLCoarseSVMMemoryRegion::unmap(cl::CommandQueue &q)
{
ARM_COMPUTE_ERROR_ON(_ptr == nullptr);
clEnqueueSVMUnmap(q.get(), _ptr, 0, nullptr, nullptr);
_mapping = nullptr;
}
CLFineSVMMemoryRegion::CLFineSVMMemoryRegion(cl_mem_flags flags, size_t size, size_t alignment)
: ICLSVMMemoryRegion(flags, size, alignment)
{
}
void *CLFineSVMMemoryRegion::map(cl::CommandQueue &q, bool blocking)
{
if (blocking)
{
clFinish(q.get());
}
_mapping = _ptr;
return _mapping;
}
void CLFineSVMMemoryRegion::unmap(cl::CommandQueue &q)
{
ARM_COMPUTE_UNUSED(q);
_mapping = nullptr;
}
} // namespace arm_compute
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