Tony Gutierrez
69ba32fa95
Add a new driver interface as a core ROCr component. The driver component provides an interface for ROCr to interact with agent kernel-model drivers in a generic way. This interface will be used to interact with the XDNA NPU driver. Eventually, the ROCt library's functionality should be implemented behind this interface. For now the interface provides basic queue and memory allocation for supporting HSA queues and signals and matches the thunk API closely. Change-Id: I37ac9f2dcbadc86ce45999f76b0e9ce753fd0c06 Signed-off-by: Chris Freehill <cfreehil@amd.com>
80 Zeilen
2.6 KiB
C++
80 Zeilen
2.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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//
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// The University of Illinois/NCSA
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// Open Source License (NCSA)
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//
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// Copyright (c) 2023, Advanced Micro Devices, Inc. All rights reserved.
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//
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// Developed by:
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//
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// AMD Research and AMD HSA Software Development
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//
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// Advanced Micro Devices, Inc.
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//
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// www.amd.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal with the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// - Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimers.
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// - Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimers in
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// the documentation and/or other materials provided with the distribution.
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// - Neither the names of Advanced Micro Devices, Inc,
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// nor the names of its contributors may be used to endorse or promote
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// products derived from this Software without specific prior written
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// permission.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS WITH THE SOFTWARE.
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//
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////////////////////////////////////////////////////////////////////////////////
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#include "core/inc/driver.h"
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#include <fcntl.h>
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#include <unistd.h>
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#include "inc/hsa.h"
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namespace rocr {
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namespace core {
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Driver::Driver(const std::string devnode_name, Agent::DeviceType agent_device_type)
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: agent_device_type_(agent_device_type), devnode_name_(devnode_name) { }
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hsa_status_t Driver::Open()
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{
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fd_ = open(devnode_name_.c_str(), O_RDWR | O_CLOEXEC);
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if (fd_ < 0) {
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return HSA_STATUS_ERROR_OUT_OF_RESOURCES;
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}
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return HSA_STATUS_SUCCESS;
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}
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hsa_status_t Driver::Close()
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{
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int ret(0);
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if (fd_ > 0) {
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ret = close(fd_);
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fd_ = -1;
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}
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if (ret) {
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return HSA_STATUS_ERROR;
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}
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return HSA_STATUS_SUCCESS;
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}
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} // namespace core
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} // namespace rocr
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