SiPixelMappingUtilities.h

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#ifndef CondFormats_SiPixelObjects_interface_alpaka_SiPixelMappingUtilities_h
#define CondFormats_SiPixelObjects_interface_alpaka_SiPixelMappingUtilities_h

#include <cstdint>
#include <alpaka/alpaka.hpp>
#include "CondFormats/SiPixelObjects/interface/SiPixelMappingLayout.h"
#include "CondFormats/SiPixelObjects/interface/SiPixelFedCablingMap.h"
#include "CondFormats/SiPixelObjects/interface/SiPixelFedCablingTree.h"
#include "HeterogeneousCore/AlpakaInterface/interface/memory.h"

namespace ALPAKA_ACCELERATOR_NAMESPACE {

  struct SiPixelMappingUtilities {
    ALPAKA_FN_HOST_ACC ALPAKA_FN_ACC ALPAKA_FN_INLINE static bool hasQuality(const SiPixelMappingSoAConstView& view) {
      return view.hasQuality();
    }

    ALPAKA_FN_HOST_ACC ALPAKA_FN_ACC ALPAKA_FN_INLINE static cms::alpakatools::device_buffer<Device, unsigned char[]>
    getModToUnpRegionalAsync(std::set<unsigned int> const& modules,
                             const SiPixelFedCablingTree* cabling,
                             std::vector<unsigned int> const& fedIds,
                             Queue& queue) {
      auto modToUnpDevice = cms::alpakatools::make_device_buffer<unsigned char[]>(queue, pixelgpudetails::MAX_SIZE);
      auto modToUnpHost = cms::alpakatools::make_host_buffer<unsigned char[]>(queue, pixelgpudetails::MAX_SIZE);

      unsigned int startFed = fedIds.front();
      unsigned int endFed = fedIds.back() - 1;

      sipixelobjects::CablingPathToDetUnit path;
      int index = 1;

      for (unsigned int fed = startFed; fed <= endFed; fed++) {
        for (unsigned int link = 1; link <= pixelgpudetails::MAX_LINK; link++) {
          for (unsigned int roc = 1; roc <= pixelgpudetails::MAX_ROC; roc++) {
            path = {fed, link, roc};
            const sipixelobjects::PixelROC* pixelRoc = cabling->findItem(path);
            if (pixelRoc != nullptr) {
              modToUnpHost[index] = (not modules.empty()) and (modules.find(pixelRoc->rawId()) == modules.end());
            } else {  // store some dummy number
              modToUnpHost[index] = true;
            }
            index++;
          }
        }
      }

      alpaka::memcpy(queue, modToUnpDevice, modToUnpHost);

      return modToUnpDevice;
    }
  };
}  // namespace ALPAKA_ACCELERATOR_NAMESPACE
#endif  //CondFormats_SiPixelObjects_interface_alpaka_SiPixelMappingUtilities_h