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| //////////////////////////////////////////////////////////////////////////////// | ||
| // | ||
| // The University of Illinois/NCSA | ||
| // Open Source License (NCSA) | ||
| // | ||
| // Copyright (c) 2023, Advanced Micro Devices, Inc. All rights reserved. | ||
| // | ||
| // Developed by: | ||
| // | ||
| // AMD Research and AMD HSA Software Development | ||
| // | ||
| // Advanced Micro Devices, Inc. | ||
| // | ||
| // www.amd.com | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to | ||
| // deal with 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: | ||
| // | ||
| // - Redistributions of source code must retain the above copyright notice, | ||
| // this list of conditions and the following disclaimers. | ||
| // - Redistributions in binary form must reproduce the above copyright | ||
| // notice, this list of conditions and the following disclaimers in | ||
| // the documentation and/or other materials provided with the distribution. | ||
| // - Neither the names of Advanced Micro Devices, Inc, | ||
| // nor the names of its contributors may be used to endorse or promote | ||
| // products derived from this Software without specific prior written | ||
| // permission. | ||
| // | ||
| // 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 CONTRIBUTORS 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 WITH THE SOFTWARE. | ||
| // | ||
| //////////////////////////////////////////////////////////////////////////////// | ||
|
|
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| #include "core/inc/driver.h" | ||
|
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| #include <fcntl.h> | ||
| #include <unistd.h> | ||
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| #include "inc/hsa.h" | ||
|
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| namespace rocr { | ||
| namespace core { | ||
|
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| Driver::Driver(const std::string devnode_name, Agent::DeviceType agent_device_type) | ||
| : agent_device_type_(agent_device_type), devnode_name_(devnode_name) { } | ||
|
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| hsa_status_t Driver::Open() | ||
| { | ||
| fd_ = open(devnode_name_.c_str(), O_RDWR | O_CLOEXEC); | ||
| if (fd_ < 0) { | ||
| return HSA_STATUS_ERROR_OUT_OF_RESOURCES; | ||
| } | ||
| return HSA_STATUS_SUCCESS; | ||
| } | ||
|
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| hsa_status_t Driver::Close() | ||
| { | ||
| int ret(0); | ||
| if (fd_ > 0) { | ||
| ret = close(fd_); | ||
| fd_ = -1; | ||
| } | ||
| if (ret) { | ||
| return HSA_STATUS_ERROR; | ||
| } | ||
| return HSA_STATUS_SUCCESS; | ||
| } | ||
|
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| } // namespace core | ||
| } // namespace rocr |
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