Ramesh Errabolu
97 righe
3.7 KiB
C++
97 righe
3.7 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) 2014-2020, 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/ipc_signal.h"
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#include <utility>
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#include "core/inc/runtime.h"
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#include "core/inc/exceptions.h"
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namespace rocr {
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namespace core {
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int IPCSignal::rtti_id_ = 0;
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KernelMutex IPCSignal::lock_;
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SharedMemory::SharedMemory(const hsa_amd_ipc_memory_t* handle, size_t len) {
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hsa_status_t err = Runtime::runtime_singleton_->IPCAttach(handle, len, 0, NULL, &ptr_);
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if (err != HSA_STATUS_SUCCESS) throw AMD::hsa_exception(err, "IPC memory attach failed.");
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}
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SharedMemory::SharedMemory(SharedMemory&& rhs) {
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ptr_ = rhs.ptr_;
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rhs.ptr_ = nullptr;
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}
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SharedMemory::~SharedMemory() {
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if (ptr_ == nullptr) return;
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auto err = Runtime::runtime_singleton_->IPCDetach(ptr_);
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assert(err == HSA_STATUS_SUCCESS && "IPC detach failed.");
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}
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void IPCSignal::CreateHandle(Signal* signal, hsa_amd_ipc_signal_t* ipc_handle) {
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if (!signal->isIPC())
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throw AMD::hsa_exception(HSA_STATUS_ERROR_INVALID_ARGUMENT, "Signal must be IPC enabled.");
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SharedSignal* shared = SharedSignal::Convert(Convert(signal));
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hsa_status_t err = Runtime::runtime_singleton_->IPCCreate(shared, 4096, ipc_handle);
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if (err != HSA_STATUS_SUCCESS) throw AMD::hsa_exception(err, "IPC memory create failed.");
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}
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Signal* IPCSignal::Attach(const hsa_amd_ipc_signal_t* ipc_signal_handle) {
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SharedMemorySignal shared(ipc_signal_handle);
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if (!(shared.signal()->IsIPC()))
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throw AMD::hsa_exception(HSA_STATUS_ERROR_INVALID_ARGUMENT,
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"IPC memory does not contain an IPC signal abi block.");
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hsa_signal_t handle = SharedSignal::Convert(shared.signal());
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ScopedAcquire<KernelMutex> lock(&lock_);
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Signal* ret = core::Signal::DuplicateHandle(handle);
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if (ret == nullptr) ret = new IPCSignal(std::move(shared));
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return ret;
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}
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} // namespace core
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} // namespace rocr
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