116 lines
4.4 KiB
C++
116 lines
4.4 KiB
C++
// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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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 disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2025 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PXG_CUDA_UTILS_H
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#define PXG_CUDA_UTILS_H
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#include "cuda.h"
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#include "foundation/PxErrors.h"
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#include "foundation/PxAssert.h"
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#include "foundation/PxFoundation.h"
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#include "foundation/PxPreprocessor.h"
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#include "foundation/PxTime.h"
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#include "cudamanager/PxCudaContext.h"
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namespace physx
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{
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/**
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Utility function to synchronize 2 streams. This causes dependentStream to wait for parentStream to complete its current queued workload before proceeding further.
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*/
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PX_INLINE void synchronizeStreams(PxCudaContext* cudaContext, const CUstream& parentStream, const CUstream& dependentStream)
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{
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CUevent ev = 0;
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cudaContext->eventCreate(&ev, CU_EVENT_DISABLE_TIMING);
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CUresult result = cudaContext->eventRecord(ev, parentStream);
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if (result != CUDA_SUCCESS)
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PxGetFoundation().error(PxErrorCode::eINTERNAL_ERROR, PX_FL, "SynchronizeStreams cuEventRecord failed with error %i\n", result);
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PX_ASSERT(result == CUDA_SUCCESS);
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result = cudaContext->streamWaitEvent(dependentStream, ev);
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if (result != CUDA_SUCCESS)
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PxGetFoundation().error(PxErrorCode::eINTERNAL_ERROR, PX_FL, "SynchronizeStreams cuStreamWaitEvent failed with error %i\n", result);
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PX_ASSERT(result == CUDA_SUCCESS);
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cudaContext->eventDestroy(ev);
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}
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/**
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Utility function to synchronize 2 streams. This causes dependentStream to wait for parentStream to complete its current queued workload before proceeding further.
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*/
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PX_INLINE void synchronizeStreams(PxCudaContext* cudaContext, CUstream& parentStream, CUstream& dependentStream, CUevent& ev)
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{
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//CUevent ev;
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//mCudaContext->eventCreate(&ev, CU_EVENT_DISABLE_TIMING);
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CUresult result = cudaContext->eventRecord(ev, parentStream);
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if (result != CUDA_SUCCESS)
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PxGetFoundation().error(PxErrorCode::eINTERNAL_ERROR, PX_FL, "SynchronizeStreams cuEventRecord failed with error %i\n", result);
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PX_ASSERT(result == CUDA_SUCCESS);
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result = cudaContext->streamWaitEvent(dependentStream, ev);
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if (result != CUDA_SUCCESS)
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PxGetFoundation().error(PxErrorCode::eINTERNAL_ERROR, PX_FL, "SynchronizeStreams cuStreamWaitEvent failed with error %i\n", result);
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PX_ASSERT(result == CUDA_SUCCESS);
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//mCudaContext->eventDestroy(ev);
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}
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PX_FORCE_INLINE void* getMappedDevicePtr(PxCudaContext* cudaContext, void* cpuPtr)
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{
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CUdeviceptr dPtr = 0;
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cudaContext->memHostGetDevicePointer(&dPtr, cpuPtr, 0);
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return reinterpret_cast<void*>(dPtr);
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}
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PX_FORCE_INLINE const void* getMappedDeviceConstPtr(PxCudaContext* cudaContext, const void* cpuPtr)
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{
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return getMappedDevicePtr(cudaContext, const_cast<void*>(cpuPtr));
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}
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PX_FORCE_INLINE bool spinWait(volatile PxU32& waitValue, const PxReal timeoutValue)
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{
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PxTime time;
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while (waitValue == 0)
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{
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if (PxReal(time.peekElapsedSeconds()) >= timeoutValue)
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return false;
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}
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return true;
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}
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}
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#endif |