GPUTPCStartHitsFinder.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef GPUTPCSTARTHITSFINDER_H
#define GPUTPCSTARTHITSFINDER_H
 
#include "GPUTPCDef.h"
#include "GPUTPCHitId.h"
#include "GPUGeneralKernels.h"
#include "GPUConstantMem.h"
 
namespace o2::gpu
{
class GPUTPCTracker;
 
class GPUTPCStartHitsFinder : public GPUKernelTemplate
{
 public:
  struct GPUSharedMemory {
    int32_t mIRow;                      // row index
    int32_t mNHits;                     // n hits in the row
    GPUAtomic(uint32_t) mNRowStartHits; // start hits found in the row
  };
 
  typedef GPUconstantref() GPUTPCTracker processorType;
  GPUhdi() constexpr static GPUDataTypes::RecoStep GetRecoStep() { return GPUCA_RECO_STEP::TPCSectorTracking; }
  GPUhdi() static processorType* Processor(GPUConstantMem& processors)
  {
    return processors.tpcTrackers;
  }
  template <int32_t iKernel = defaultKernel>
  GPUd() static void Thread(int32_t nBlocks, int32_t nThreads, int32_t iBlock, int32_t iThread, GPUsharedref() GPUSharedMemory& smem, processorType& tracker);
};
} // namespace o2::gpu
 
#endif // GPUTPCSTARTHITSFINDER_H