//
// Copyright (c) 2015 Advanced Micro Devices, Inc. All rights reserved.
//
#include "platform/commandqueue.hpp"
#include "device/rocm/rocdevice.hpp"
#include "device/rocm/rocblit.hpp"
#include "device/rocm/rocmemory.hpp"
#include "device/rocm/rockernel.hpp"
#include "device/rocm/rocsched.hpp"
#include "utils/debug.hpp"
#include <algorithm>

namespace roc {

DmaBlitManager::DmaBlitManager(VirtualGPU& gpu, Setup setup)
    : HostBlitManager(gpu, setup),
      MinSizeForPinnedTransfer(dev().settings().pinnedMinXferSize_),
      completeOperation_(false),
      context_(nullptr) {}

inline void DmaBlitManager::synchronize() const {
  // todo TS tracking isn't implemented
  gpu().releaseGpuMemoryFence();

  if (syncOperation_) {
    //        gpu().waitAllEngines();
    gpu().releasePinnedMem();
  }
}

inline Memory& DmaBlitManager::gpuMem(device::Memory& mem) const {
  return static_cast<Memory&>(mem);
}

bool DmaBlitManager::readMemoryStaged(Memory& srcMemory, void* dstHost, Memory& xferBuf,
                                      size_t origin, size_t& offset, size_t& totalSize,
                                      size_t xferSize) const {
  const_address src = srcMemory.getDeviceMemory();
  address staging = xferBuf.getDeviceMemory();

  // Copy data from device to host
  src += origin + offset;
  address dst = reinterpret_cast<address>(dstHost) + offset;
  bool ret = hsaCopyStaged(src, dst, totalSize, staging, false);

  return ret;
}

bool DmaBlitManager::readBuffer(device::Memory& srcMemory, void* dstHost,
                                const amd::Coord3D& origin, const amd::Coord3D& size,
                                bool entire) const {
  // Use host copy if memory has direct access
  if (setup_.disableReadBuffer_ ||
      (srcMemory.isHostMemDirectAccess() && !srcMemory.isCpuUncached())) {
    return HostBlitManager::readBuffer(srcMemory, dstHost, origin, size, entire);
  } else {
    size_t srcSize = size[0];
    size_t offset = 0;
    size_t pinSize = dev().settings().pinnedXferSize_;
    pinSize = std::min(pinSize, srcSize);

    // Check if a pinned transfer can be executed
    if (pinSize && (srcSize > MinSizeForPinnedTransfer)) {
      // Align offset to 4K boundary
      char* tmpHost = const_cast<char*>(
          amd::alignDown(reinterpret_cast<const char*>(dstHost), PinnedMemoryAlignment));

      // Find the partial size for unaligned copy
      size_t partial = reinterpret_cast<const char*>(dstHost) - tmpHost;

      amd::Memory* pinned = nullptr;
      bool first = true;
      size_t tmpSize;
      size_t pinAllocSize;

      // Copy memory, using pinning
      while (srcSize > 0) {
        // If it's the first iterarion, then readjust the copy size
        // to include alignment
        if (first) {
          pinAllocSize = amd::alignUp(pinSize + partial, PinnedMemoryAlignment);
          tmpSize = std::min(pinAllocSize - partial, srcSize);
          first = false;
        } else {
          tmpSize = std::min(pinSize, srcSize);
          pinAllocSize = amd::alignUp(tmpSize, PinnedMemoryAlignment);
          partial = 0;
        }
        amd::Coord3D dst(partial, 0, 0);
        amd::Coord3D srcPin(origin[0] + offset, 0, 0);
        amd::Coord3D copySizePin(tmpSize, 0, 0);
        size_t partial2;

        // Allocate a GPU resource for pinning
        pinned = pinHostMemory(tmpHost, pinAllocSize, partial2);
        if (pinned != nullptr) {
          // Get device memory for this virtual device
          Memory* dstMemory = dev().getRocMemory(pinned);

          if (!hsaCopy(gpuMem(srcMemory), *dstMemory, srcPin, dst, copySizePin)) {
            LogWarning("DmaBlitManager::readBuffer failed a pinned copy!");
            gpu().addPinnedMem(pinned);
            break;
          }
          gpu().addPinnedMem(pinned);
        } else {
          LogWarning("DmaBlitManager::readBuffer failed to pin a resource!");
          break;
        }
        srcSize -= tmpSize;
        offset += tmpSize;
        tmpHost = reinterpret_cast<char*>(tmpHost) + tmpSize + partial;
      }
    }

    if (0 != srcSize) {
      Memory& xferBuf = dev().xferRead().acquire();

      // Read memory using a staging resource
      if (!readMemoryStaged(gpuMem(srcMemory), dstHost, xferBuf, origin[0], offset, srcSize,
                            srcSize)) {
        LogError("DmaBlitManager::readBuffer failed!");
        return false;
      }

      dev().xferRead().release(gpu(), xferBuf);
    }
  }

  return true;
}

bool DmaBlitManager::readBufferRect(device::Memory& srcMemory, void* dstHost,
                                    const amd::BufferRect& bufRect, const amd::BufferRect& hostRect,
                                    const amd::Coord3D& size, bool entire) const {
  // Use host copy if memory has direct access
  if (setup_.disableReadBufferRect_ ||
      (srcMemory.isHostMemDirectAccess() && !srcMemory.isCpuUncached())) {
    return HostBlitManager::readBufferRect(srcMemory, dstHost, bufRect, hostRect, size, entire);
  } else {
    Memory& xferBuf = dev().xferRead().acquire();
    address staging = xferBuf.getDeviceMemory();
    const_address src = gpuMem(srcMemory).getDeviceMemory();

    size_t srcOffset;
    size_t dstOffset;

    for (size_t z = 0; z < size[2]; ++z) {
      for (size_t y = 0; y < size[1]; ++y) {
        srcOffset = bufRect.offset(0, y, z);
        dstOffset = hostRect.offset(0, y, z);

        // Copy data from device to host - line by line
        address dst = reinterpret_cast<address>(dstHost) + dstOffset;
        src += srcOffset;
        bool retval = hsaCopyStaged(src, dst, size[0], staging, false);
        if (!retval) {
          return retval;
        }
      }
    }
    dev().xferRead().release(gpu(), xferBuf);
  }

  return true;
}

bool DmaBlitManager::readImage(device::Memory& srcMemory, void* dstHost, const amd::Coord3D& origin,
                               const amd::Coord3D& size, size_t rowPitch, size_t slicePitch,
                               bool entire) const {
  if (setup_.disableReadImage_) {
    return HostBlitManager::readImage(srcMemory, dstHost, origin, size, rowPitch, slicePitch,
                                      entire);
  } else {
    //! @todo Add HW accelerated path
    return HostBlitManager::readImage(srcMemory, dstHost, origin, size, rowPitch, slicePitch,
                                      entire);
  }

  return true;
}

bool DmaBlitManager::writeMemoryStaged(const void* srcHost, Memory& dstMemory, Memory& xferBuf,
                                       size_t origin, size_t& offset, size_t& totalSize,
                                       size_t xferSize) const {
  address dst = dstMemory.getDeviceMemory();
  address staging = xferBuf.getDeviceMemory();

  // Copy data from host to device
  dst += origin + offset;
  const_address src = reinterpret_cast<const_address>(srcHost) + offset;
  bool retval = hsaCopyStaged(src, dst, totalSize, staging, true);

  return retval;
}

bool DmaBlitManager::writeBuffer(const void* srcHost, device::Memory& dstMemory,
                                 const amd::Coord3D& origin, const amd::Coord3D& size,
                                 bool entire) const {
  // Use host copy if memory has direct access
  if (setup_.disableWriteBuffer_ || dstMemory.isHostMemDirectAccess() ||
      gpuMem(dstMemory).IsPersistentDirectMap()) {
    return HostBlitManager::writeBuffer(srcHost, dstMemory, origin, size, entire);
  } else {
    size_t dstSize = size[0];
    size_t tmpSize = 0;
    size_t offset = 0;
    size_t pinSize = dev().settings().pinnedXferSize_;
    pinSize = std::min(pinSize, dstSize);

    // Check if a pinned transfer can be executed
    if (pinSize && (dstSize > MinSizeForPinnedTransfer)) {
      // Align offset to 4K boundary
      char* tmpHost = const_cast<char*>(
          amd::alignDown(reinterpret_cast<const char*>(srcHost), PinnedMemoryAlignment));

      // Find the partial size for unaligned copy
      size_t partial = reinterpret_cast<const char*>(srcHost) - tmpHost;

      amd::Memory* pinned = nullptr;
      bool first = true;
      size_t tmpSize;
      size_t pinAllocSize;

      // Copy memory, using pinning
      while (dstSize > 0) {
        // If it's the first iterarion, then readjust the copy size
        // to include alignment
        if (first) {
          pinAllocSize = amd::alignUp(pinSize + partial, PinnedMemoryAlignment);
          tmpSize = std::min(pinAllocSize - partial, dstSize);
          first = false;
        } else {
          tmpSize = std::min(pinSize, dstSize);
          pinAllocSize = amd::alignUp(tmpSize, PinnedMemoryAlignment);
          partial = 0;
        }
        amd::Coord3D src(partial, 0, 0);
        amd::Coord3D dstPin(origin[0] + offset, 0, 0);
        amd::Coord3D copySizePin(tmpSize, 0, 0);
        size_t partial2;

        // Allocate a GPU resource for pinning
        pinned = pinHostMemory(tmpHost, pinAllocSize, partial2);

        if (pinned != nullptr) {
          // Get device memory for this virtual device
          Memory* srcMemory = dev().getRocMemory(pinned);

          if (!hsaCopy(*srcMemory, gpuMem(dstMemory), src, dstPin, copySizePin)) {
            LogWarning("DmaBlitManager::writeBuffer failed a pinned copy!");
            gpu().addPinnedMem(pinned);
            break;
          }
          gpu().addPinnedMem(pinned);
        } else {
          LogWarning("DmaBlitManager::writeBuffer failed to pin a resource!");
          break;
        }
        dstSize -= tmpSize;
        offset += tmpSize;
        tmpHost = reinterpret_cast<char*>(tmpHost) + tmpSize + partial;
      }
    }

    if (dstSize != 0) {
      Memory& xferBuf = dev().xferWrite().acquire();

      // Write memory using a staging resource
      if (!writeMemoryStaged(srcHost, gpuMem(dstMemory), xferBuf, origin[0], offset, dstSize,
                             dstSize)) {
        LogError("DmaBlitManager::writeBuffer failed!");
        return false;
      }

      gpu().addXferWrite(xferBuf);
    }
  }

  return true;
}

bool DmaBlitManager::writeBufferRect(const void* srcHost, device::Memory& dstMemory,
                                     const amd::BufferRect& hostRect,
                                     const amd::BufferRect& bufRect, const amd::Coord3D& size,
                                     bool entire) const {
  // Use host copy if memory has direct access
  if (setup_.disableWriteBufferRect_ || dstMemory.isHostMemDirectAccess() ||
      gpuMem(dstMemory).IsPersistentDirectMap()) {
    return HostBlitManager::writeBufferRect(srcHost, dstMemory, hostRect, bufRect, size, entire);
  } else {
    Memory& xferBuf = dev().xferWrite().acquire();
    address staging = xferBuf.getDeviceMemory();
    address dst = static_cast<roc::Memory&>(dstMemory).getDeviceMemory();

    size_t srcOffset;
    size_t dstOffset;

    for (size_t z = 0; z < size[2]; ++z) {
      for (size_t y = 0; y < size[1]; ++y) {
        srcOffset = hostRect.offset(0, y, z);
        dstOffset = bufRect.offset(0, y, z);

        // Copy data from host to device - line by line
        dst += dstOffset;
        const_address src = reinterpret_cast<const_address>(srcHost) + srcOffset;
        bool retval = hsaCopyStaged(src, dst, size[0], staging, true);
        if (!retval) {
          return retval;
        }
      }
    }
    gpu().addXferWrite(xferBuf);
  }

  return true;
}

bool DmaBlitManager::writeImage(const void* srcHost, device::Memory& dstMemory,
                                const amd::Coord3D& origin, const amd::Coord3D& size,
                                size_t rowPitch, size_t slicePitch, bool entire) const {
  if (setup_.disableWriteImage_) {
    return HostBlitManager::writeImage(srcHost, dstMemory, origin, size, rowPitch, slicePitch,
                                       entire);
  } else {
    //! @todo Add HW accelerated path
    return HostBlitManager::writeImage(srcHost, dstMemory, origin, size, rowPitch, slicePitch,
                                       entire);
  }

  return true;
}

bool DmaBlitManager::copyBuffer(device::Memory& srcMemory, device::Memory& dstMemory,
                                const amd::Coord3D& srcOrigin, const amd::Coord3D& dstOrigin,
                                const amd::Coord3D& size, bool entire) const {
  if (setup_.disableCopyBuffer_ ||
      (srcMemory.isHostMemDirectAccess() && !srcMemory.isCpuUncached() &&
      (dev().agent_profile() != HSA_PROFILE_FULL) && dstMemory.isHostMemDirectAccess())) {
    return HostBlitManager::copyBuffer(srcMemory, dstMemory, srcOrigin, dstOrigin, size);
  } else {
    return hsaCopy(gpuMem(srcMemory), gpuMem(dstMemory), srcOrigin, dstOrigin, size);
  }

  return true;
}

bool DmaBlitManager::copyBufferRect(device::Memory& srcMemory, device::Memory& dstMemory,
                                    const amd::BufferRect& srcRect, const amd::BufferRect& dstRect,
                                    const amd::Coord3D& size, bool entire) const {
  if (setup_.disableCopyBufferRect_ ||
      (srcMemory.isHostMemDirectAccess() && !srcMemory.isCpuUncached() &&
       dstMemory.isHostMemDirectAccess())) {
    return HostBlitManager::copyBufferRect(srcMemory, dstMemory, srcRect, dstRect, size, entire);
  } else {

    void* src = gpuMem(srcMemory).getDeviceMemory();
    void* dst = gpuMem(dstMemory).getDeviceMemory();

    // Detect the agents for memory allocations
    const hsa_agent_t srcAgent =
        (srcMemory.isHostMemDirectAccess()) ? dev().getCpuAgent() : dev().getBackendDevice();
    const hsa_agent_t dstAgent =
        (dstMemory.isHostMemDirectAccess()) ? dev().getCpuAgent() : dev().getBackendDevice();

    bool isSubwindowRectCopy = true;
    hsa_amd_copy_direction_t direction = hsaHostToHost;

    hsa_agent_t agent = dev().getBackendDevice();
    //Determine copy direction
    if (srcMemory.isHostMemDirectAccess() && !dstMemory.isHostMemDirectAccess()) {
      direction = hsaHostToDevice;
    } else if (!srcMemory.isHostMemDirectAccess() && dstMemory.isHostMemDirectAccess()) {
      direction = hsaDeviceToHost;
    } else if (!srcMemory.isHostMemDirectAccess() && !dstMemory.isHostMemDirectAccess()) {
      direction = hsaDeviceToDevice;
    }

    hsa_pitched_ptr_t srcMem = { (reinterpret_cast<address>(src) + srcRect.offset(0, 0, 0)),
                                srcRect.rowPitch_,
                                srcRect.slicePitch_ };

    hsa_pitched_ptr_t dstMem = { (reinterpret_cast<address>(dst) + dstRect.offset(0, 0, 0)),
                                dstRect.rowPitch_,
                                dstRect.slicePitch_ };

    hsa_dim3_t dim = { static_cast<uint32_t>(size[0]),
                      static_cast<uint32_t>(size[1]),
                      static_cast<uint32_t>(size[2]) };
    hsa_dim3_t offset = { 0, 0 ,0 };


    if ((srcRect.rowPitch_ % 4 != 0)     ||
        (srcRect.slicePitch_ % 4 != 0)    ||
        (dstRect.rowPitch_ % 4 != 0)     ||
        (dstRect.slicePitch_ % 4 != 0)) {
      isSubwindowRectCopy = false;
    }

    if (isSubwindowRectCopy ) {
      const hsa_signal_value_t kInitVal = 1;
      hsa_signal_store_relaxed(completion_signal_, kInitVal);

      // Copy memory line by line
      hsa_status_t status =
          hsa_amd_memory_async_copy_rect(&dstMem, &offset, &srcMem, &offset, &dim, agent,
                                    direction, 0, nullptr, completion_signal_);
      if (status != HSA_STATUS_SUCCESS) {
        LogPrintfError("DMA buffer failed with code %d", status);
        return false;
      }


      hsa_signal_value_t val = hsa_signal_wait_acquire(completion_signal_, HSA_SIGNAL_CONDITION_EQ, 0,
                                                      uint64_t(-1), HSA_WAIT_STATE_BLOCKED);
      if (val != 0) {
        LogError("Async copy failed");
        return false;
      }
    } else {
      // Fall to line by line copies
      const hsa_signal_value_t kInitVal = size[2] * size[1];
      hsa_signal_store_relaxed(completion_signal_, kInitVal);

      for (size_t z = 0; z < size[2]; ++z) {
        for (size_t y = 0; y < size[1]; ++y) {
          size_t srcOffset = srcRect.offset(0, y, z);
          size_t dstOffset = dstRect.offset(0, y, z);

          // Copy memory line by line
          hsa_status_t status =
              hsa_amd_memory_async_copy((reinterpret_cast<address>(dst) + dstOffset), dstAgent,
                                        (reinterpret_cast<const_address>(src) + srcOffset), srcAgent,
                                        size[0], 0, nullptr, completion_signal_);
          if (status != HSA_STATUS_SUCCESS) {
            LogPrintfError("DMA buffer failed with code %d", status);
            return false;
          }
        }
      }

      hsa_signal_value_t val = hsa_signal_wait_acquire(completion_signal_, HSA_SIGNAL_CONDITION_EQ, 0,
                                                      uint64_t(-1), HSA_WAIT_STATE_BLOCKED);
      if (val != 0) {
        LogError("Async copy failed");
        return false;
      }
    }

  }
  return true;
}

bool DmaBlitManager::copyImageToBuffer(device::Memory& srcMemory, device::Memory& dstMemory,
                                       const amd::Coord3D& srcOrigin, const amd::Coord3D& dstOrigin,
                                       const amd::Coord3D& size, bool entire, size_t rowPitch,
                                       size_t slicePitch) const {
  bool result = false;

  if (setup_.disableCopyImageToBuffer_) {
    result = HostBlitManager::copyImageToBuffer(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                                entire, rowPitch, slicePitch);
  } else {
    Image& srcImage = static_cast<roc::Image&>(srcMemory);
    Buffer& dstBuffer = static_cast<roc::Buffer&>(dstMemory);

    // Use ROC path for a transfer
    // Note: it doesn't support SDMA
    address dstHost = reinterpret_cast<address>(dstBuffer.getDeviceMemory()) + dstOrigin[0];

    // Use ROCm path for a transfer.
    // Note: it doesn't support SDMA
    hsa_ext_image_region_t image_region;
    image_region.offset.x = srcOrigin[0];
    image_region.offset.y = srcOrigin[1];
    image_region.offset.z = srcOrigin[2];
    image_region.range.x = size[0];
    image_region.range.y = size[1];
    image_region.range.z = size[2];

    hsa_status_t status = hsa_ext_image_export(gpu().gpu_device(), srcImage.getHsaImageObject(),
                                               dstHost, rowPitch, slicePitch, &image_region);
    result = (status == HSA_STATUS_SUCCESS) ? true : false;

    // Check if a HostBlit transfer is required
    if (completeOperation_ && !result) {
      result = HostBlitManager::copyImageToBuffer(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                                  entire, rowPitch, slicePitch);
    }
  }

  return result;
}

bool DmaBlitManager::copyBufferToImage(device::Memory& srcMemory, device::Memory& dstMemory,
                                       const amd::Coord3D& srcOrigin, const amd::Coord3D& dstOrigin,
                                       const amd::Coord3D& size, bool entire, size_t rowPitch,
                                       size_t slicePitch) const {
  bool result = false;

  if (setup_.disableCopyBufferToImage_) {
    result = HostBlitManager::copyBufferToImage(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                                entire, rowPitch, slicePitch);
  } else {
    Buffer& srcBuffer = static_cast<roc::Buffer&>(srcMemory);
    Image& dstImage = static_cast<roc::Image&>(dstMemory);

    // Use ROC path for a transfer
    // Note: it doesn't support SDMA
    address srcHost = reinterpret_cast<address>(srcBuffer.getDeviceMemory()) + srcOrigin[0];

    hsa_ext_image_region_t image_region;
    image_region.offset.x = dstOrigin[0];
    image_region.offset.y = dstOrigin[1];
    image_region.offset.z = dstOrigin[2];
    image_region.range.x = size[0];
    image_region.range.y = size[1];
    image_region.range.z = size[2];

    hsa_status_t status = hsa_ext_image_import(gpu().gpu_device(), srcHost, rowPitch, slicePitch,
                                               dstImage.getHsaImageObject(), &image_region);
    result = (status == HSA_STATUS_SUCCESS) ? true : false;

    // Check if a HostBlit tran sfer is required
    if (completeOperation_ && !result) {
      result = HostBlitManager::copyBufferToImage(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                                  entire, rowPitch, slicePitch);
    }
  }

  return result;
}

bool DmaBlitManager::copyImage(device::Memory& srcMemory, device::Memory& dstMemory,
                               const amd::Coord3D& srcOrigin, const amd::Coord3D& dstOrigin,
                               const amd::Coord3D& size, bool entire) const {
  bool result = false;

  if (setup_.disableCopyImage_) {
    return HostBlitManager::copyImage(srcMemory, dstMemory, srcOrigin, dstOrigin, size, entire);
  } else {
    //! @todo Add HW accelerated path
    return HostBlitManager::copyImage(srcMemory, dstMemory, srcOrigin, dstOrigin, size, entire);
  }

  return result;
}

bool DmaBlitManager::hsaCopy(const Memory& srcMemory, const Memory& dstMemory,
                             const amd::Coord3D& srcOrigin, const amd::Coord3D& dstOrigin,
                             const amd::Coord3D& size, bool enableCopyRect, bool flushDMA) const {
  address src = reinterpret_cast<address>(srcMemory.getDeviceMemory());
  address dst = reinterpret_cast<address>(dstMemory.getDeviceMemory());

  src += srcOrigin[0];
  dst += dstOrigin[0];

  // Just call copy function for full profile
  hsa_status_t status;
  if (dev().agent_profile() == HSA_PROFILE_FULL) {
    status = hsa_memory_copy(dst, src, size[0]);
    if (status != HSA_STATUS_SUCCESS) {
      LogPrintfError("Hsa copy of data failed with code %d", status);
    }
    return (status == HSA_STATUS_SUCCESS);
  }

  hsa_agent_t srcAgent;
  hsa_agent_t dstAgent;

  if (&srcMemory.dev() == &dstMemory.dev()) {
    // Detect the agents for memory allocations
    srcAgent =
      (srcMemory.isHostMemDirectAccess()) ? dev().getCpuAgent() : dev().getBackendDevice();
    dstAgent =
      (dstMemory.isHostMemDirectAccess()) ? dev().getCpuAgent() : dev().getBackendDevice();
  }
  else {
    srcAgent = srcMemory.dev().getBackendDevice();
    dstAgent = dstMemory.dev().getBackendDevice();
  }

  const hsa_signal_value_t kInitVal = 1;
  hsa_signal_store_relaxed(completion_signal_, kInitVal);

  // Use SDMA to transfer the data
  status = hsa_amd_memory_async_copy(dst, dstAgent, src, srcAgent, size[0], 0, nullptr,
                                     completion_signal_);

  if (status == HSA_STATUS_SUCCESS) {
    hsa_signal_value_t val;

    // Use ACTIVE wait for small transfers.
    // Might want to be dependent on also having an idle GPU
    // or, if queue is busy, may want to enqueue a blank barrier
    // before this and wait BLOCKED on its completion signal, followed
    // by ACTIVE on this.

    constexpr size_t small_transfer_size = 4 * Mi;
    if (size[0] < small_transfer_size) {
      val = hsa_signal_wait_acquire(completion_signal_, HSA_SIGNAL_CONDITION_EQ, 0,
                                    std::numeric_limits<uint64_t>::max(), HSA_WAIT_STATE_ACTIVE);
    } else {
      val = hsa_signal_wait_acquire(completion_signal_, HSA_SIGNAL_CONDITION_EQ, 0,
                                    std::numeric_limits<uint64_t>::max(), HSA_WAIT_STATE_BLOCKED);
    }
    if (val != (kInitVal - 1)) {
      LogError("Async copy failed");
      status = HSA_STATUS_ERROR;
    }
  } else {
    LogPrintfError("Hsa copy from host to device failed with code %d", status);
  }

  return (status == HSA_STATUS_SUCCESS);
}

bool DmaBlitManager::hsaCopyStaged(const_address hostSrc, address hostDst, size_t size,
                                   address staging, bool hostToDev) const {
  // No allocation is necessary for Full Profile
  hsa_status_t status;
  if (dev().agent_profile() == HSA_PROFILE_FULL) {
    status = hsa_memory_copy(hostDst, hostSrc, size);
    if (status != HSA_STATUS_SUCCESS) {
      LogPrintfError("Hsa copy of data failed with code %d", status);
    }
    return (status == HSA_STATUS_SUCCESS);
  }

  size_t totalSize = size;
  size_t offset = 0;

  address hsaBuffer = staging;

  const hsa_signal_value_t kInitVal = 1;

  // Allocate requested size of memory
  while (totalSize > 0) {
    size = std::min(totalSize, dev().settings().stagedXferSize_);
    hsa_signal_store_relaxed(completion_signal_, kInitVal);

    // Copy data from Host to Device
    if (hostToDev) {
      memcpy(hsaBuffer, hostSrc + offset, size);
      status = hsa_amd_memory_async_copy(hostDst + offset, dev().getBackendDevice(), hsaBuffer,
                                         dev().getCpuAgent(), size, 0, nullptr, completion_signal_);
      if (status == HSA_STATUS_SUCCESS) {
        hsa_signal_value_t val = hsa_signal_wait_acquire(
            completion_signal_, HSA_SIGNAL_CONDITION_EQ, 0, uint64_t(-1), HSA_WAIT_STATE_BLOCKED);

        if (val != (kInitVal - 1)) {
          LogError("Async copy failed");
          return false;
        }
      } else {
        LogPrintfError("Hsa copy from host to device failed with code %d", status);
        return false;
      }
      totalSize -= size;
      offset += size;
      continue;
    }

    // Copy data from Device to Host
    status =
        hsa_amd_memory_async_copy(hsaBuffer, dev().getCpuAgent(), hostSrc + offset,
                                  dev().getBackendDevice(), size, 0, nullptr, completion_signal_);
    if (status == HSA_STATUS_SUCCESS) {
      hsa_signal_value_t val = hsa_signal_wait_acquire(completion_signal_, HSA_SIGNAL_CONDITION_EQ,
                                                       0, uint64_t(-1), HSA_WAIT_STATE_BLOCKED);

      if (val != (kInitVal - 1)) {
        LogError("Async copy failed");
        return false;
      }
      memcpy(hostDst + offset, hsaBuffer, size);
    } else {
      LogPrintfError("Hsa copy from device to host failed with code %d", status);
      return false;
    }
    totalSize -= size;
    offset += size;
  }

  return true;
}

KernelBlitManager::KernelBlitManager(VirtualGPU& gpu, Setup setup)
    : DmaBlitManager(gpu, setup),
      program_(nullptr),
      constantBuffer_(nullptr),
      xferBufferSize_(0),
      lockXferOps_(nullptr) {
  for (uint i = 0; i < BlitTotal; ++i) {
    kernels_[i] = nullptr;
  }

  completeOperation_ = false;
}

KernelBlitManager::~KernelBlitManager() {
  for (uint i = 0; i < BlitTotal; ++i) {
    if (nullptr != kernels_[i]) {
      kernels_[i]->release();
    }
  }
  if (nullptr != program_) {
    program_->release();
  }

  if (nullptr != context_) {
    // Release a dummy context
    context_->release();
  }

  if (nullptr != constantBuffer_) {
    constantBuffer_->release();
  }

  delete lockXferOps_;
}

bool KernelBlitManager::create(amd::Device& device) {
  if (!DmaBlitManager::create(device)) {
    return false;
  }

  if (!createProgram(static_cast<Device&>(device))) {
    return false;
  }
  return true;
}

bool KernelBlitManager::createProgram(Device& device) {
  if (device.blitProgram() == nullptr) {
    return false;
  }

  std::vector<amd::Device*> devices;
  devices.push_back(&device);

  // Save context and program for this device
  context_ = device.blitProgram()->context_;
  context_->retain();
  program_ = device.blitProgram()->program_;
  program_->retain();

  bool result = false;
  do {
    // Create kernel objects for all blits
    for (uint i = 0; i < BlitTotal; ++i) {
      const amd::Symbol* symbol = program_->findSymbol(BlitName[i]);
      if (symbol == nullptr) {
        break;
      }
      kernels_[i] = new amd::Kernel(*program_, *symbol, BlitName[i]);
      if (kernels_[i] == nullptr) {
        break;
      }
      // Validate blit kernels for the scratch memory usage (pre SI)
      if (!device.validateKernel(*kernels_[i], &gpu())) {
        break;
      }
    }

    result = true;
  } while (!result);

  // Create an internal constant buffer
  constantBuffer_ = new (*context_) amd::Buffer(*context_, CL_MEM_ALLOC_HOST_PTR, 4 * Ki);
  // Assign the constant buffer to the current virtual GPU
  constantBuffer_->setVirtualDevice(&gpu());
  if ((constantBuffer_ != nullptr) && !constantBuffer_->create(nullptr)) {
    constantBuffer_->release();
    constantBuffer_ = nullptr;
    return false;
  } else if (constantBuffer_ == nullptr) {
    return false;
  }

  lockXferOps_ = new amd::Monitor("Transfer Ops Lock", true);
  if (nullptr == lockXferOps_) {
    return false;
  }

  return result;
}

// The following data structures will be used for the view creations.
// Some formats has to be converted before a kernel blit operation
struct FormatConvertion {
  cl_uint clOldType_;
  cl_uint clNewType_;
};

// The list of rejected data formats and corresponding conversion
static const FormatConvertion RejectedData[] = {
    {CL_UNORM_INT8, CL_UNSIGNED_INT8},       {CL_UNORM_INT16, CL_UNSIGNED_INT16},
    {CL_SNORM_INT8, CL_UNSIGNED_INT8},       {CL_SNORM_INT16, CL_UNSIGNED_INT16},
    {CL_HALF_FLOAT, CL_UNSIGNED_INT16},      {CL_FLOAT, CL_UNSIGNED_INT32},
    {CL_SIGNED_INT8, CL_UNSIGNED_INT8},      {CL_SIGNED_INT16, CL_UNSIGNED_INT16},
    {CL_UNORM_INT_101010, CL_UNSIGNED_INT8}, {CL_SIGNED_INT32, CL_UNSIGNED_INT32}};

// The list of rejected channel's order and corresponding conversion
static const FormatConvertion RejectedOrder[] = {
    {CL_A, CL_R},        {CL_RA, CL_RG},      {CL_LUMINANCE, CL_R}, {CL_INTENSITY, CL_R},
    {CL_RGB, CL_RGBA},   {CL_BGRA, CL_RGBA},  {CL_ARGB, CL_RGBA},   {CL_sRGB, CL_RGBA},
    {CL_sRGBx, CL_RGBA}, {CL_sRGBA, CL_RGBA}, {CL_sBGRA, CL_RGBA},  {CL_DEPTH, CL_R}};

const uint RejectedFormatDataTotal = sizeof(RejectedData) / sizeof(FormatConvertion);
const uint RejectedFormatChannelTotal = sizeof(RejectedOrder) / sizeof(FormatConvertion);

bool KernelBlitManager::copyBufferToImage(device::Memory& srcMemory, device::Memory& dstMemory,
                                          const amd::Coord3D& srcOrigin,
                                          const amd::Coord3D& dstOrigin, const amd::Coord3D& size,
                                          bool entire, size_t rowPitch, size_t slicePitch) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;
  static const bool CopyRect = false;
  // Flush DMA for ASYNC copy
  static const bool FlushDMA = true;
  amd::Image* dstImage = static_cast<amd::Image*>(dstMemory.owner());
  size_t imgRowPitch = size[0] * dstImage->getImageFormat().getElementSize();
  size_t imgSlicePitch = imgRowPitch * size[1];

  if (setup_.disableCopyBufferToImage_) {
    result = HostBlitManager::copyBufferToImage(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                                entire, rowPitch, slicePitch);
    synchronize();
    return result;
  }
  // Check if buffer is in system memory with direct access
  else if (srcMemory.isHostMemDirectAccess() &&
           (((rowPitch == 0) && (slicePitch == 0)) ||
            ((rowPitch == imgRowPitch) && ((slicePitch == 0) || (slicePitch == imgSlicePitch))))) {
    // First attempt to do this all with DMA,
    // but there are restriciton with older hardware
    if (dev().settings().imageDMA_) {
      result = DmaBlitManager::copyBufferToImage(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                                 entire, rowPitch, slicePitch);
      if (result) {
        synchronize();
        return result;
      }
    }
  }

  if (!result) {
    result = copyBufferToImageKernel(srcMemory, dstMemory, srcOrigin, dstOrigin, size, entire,
                                     rowPitch, slicePitch);
  }

  synchronize();

  return result;
}

void CalcRowSlicePitches(cl_ulong* pitch, const cl_int* copySize, size_t rowPitch,
                         size_t slicePitch, const Memory& mem) {
  amd::Image* image = static_cast<amd::Image*>(mem.owner());
  uint32_t memFmtSize = image->getImageFormat().getElementSize();
  bool img1Darray = (mem.owner()->getType() == CL_MEM_OBJECT_IMAGE1D_ARRAY) ? true : false;

  if (rowPitch == 0) {
    pitch[0] = copySize[0];
  } else {
    pitch[0] = rowPitch / memFmtSize;
  }
  if (slicePitch == 0) {
    pitch[1] = pitch[0] * (img1Darray ? 1 : copySize[1]);
  } else {
    pitch[1] = slicePitch / memFmtSize;
  }
  assert((pitch[0] <= pitch[1]) && "rowPitch must be <= slicePitch");

  if (img1Darray) {
    // For 1D array rowRitch = slicePitch
    pitch[0] = pitch[1];
  }
}

bool KernelBlitManager::copyBufferToImageKernel(device::Memory& srcMemory,
                                                device::Memory& dstMemory,
                                                const amd::Coord3D& srcOrigin,
                                                const amd::Coord3D& dstOrigin,
                                                const amd::Coord3D& size, bool entire,
                                                size_t rowPitch, size_t slicePitch) const {
  bool rejected = false;
  Memory* dstView = &gpuMem(dstMemory);
  bool releaseView = false;
  bool result = false;
  amd::Image* dstImage = static_cast<amd::Image*>(dstMemory.owner());
  amd::Image* srcImage = static_cast<amd::Image*>(srcMemory.owner());
  amd::Image::Format newFormat(dstImage->getImageFormat());

  // Find unsupported formats
  for (uint i = 0; i < RejectedFormatDataTotal; ++i) {
    if (RejectedData[i].clOldType_ == newFormat.image_channel_data_type) {
      newFormat.image_channel_data_type = RejectedData[i].clNewType_;
      rejected = true;
      break;
    }
  }

  // Find unsupported channel's order
  for (uint i = 0; i < RejectedFormatChannelTotal; ++i) {
    if (RejectedOrder[i].clOldType_ == newFormat.image_channel_order) {
      newFormat.image_channel_order = RejectedOrder[i].clNewType_;
      rejected = true;
      break;
    }
  }

  // If the image format was rejected, then attempt to create a view
  if (rejected &&
      // todo ROC runtime has a problem with a view for this format
      (dstImage->getImageFormat().image_channel_data_type != CL_UNORM_INT_101010)) {
    dstView = createView(gpuMem(dstMemory), newFormat, CL_MEM_WRITE_ONLY);
    if (dstView != nullptr) {
      rejected = false;
      releaseView = true;
    }
  }

  // Fall into the host path if the image format was rejected
  if (rejected) {
    return DmaBlitManager::copyBufferToImage(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                             entire, rowPitch, slicePitch);
  }

  // Use a common blit type with three dimensions by default
  uint blitType = BlitCopyBufferToImage;
  size_t dim = 0;
  size_t globalWorkOffset[3] = {0, 0, 0};
  size_t globalWorkSize[3];
  size_t localWorkSize[3];

  // Program the kernels workload depending on the blit dimensions
  dim = 3;
  if (dstImage->getDims() == 1) {
    globalWorkSize[0] = amd::alignUp(size[0], 256);
    globalWorkSize[1] = amd::alignUp(size[1], 1);
    globalWorkSize[2] = amd::alignUp(size[2], 1);
    localWorkSize[0] = 256;
    localWorkSize[1] = localWorkSize[2] = 1;
  } else if (dstImage->getDims() == 2) {
    globalWorkSize[0] = amd::alignUp(size[0], 16);
    globalWorkSize[1] = amd::alignUp(size[1], 16);
    globalWorkSize[2] = amd::alignUp(size[2], 1);
    localWorkSize[0] = localWorkSize[1] = 16;
    localWorkSize[2] = 1;
  } else {
    globalWorkSize[0] = amd::alignUp(size[0], 8);
    globalWorkSize[1] = amd::alignUp(size[1], 8);
    globalWorkSize[2] = amd::alignUp(size[2], 4);
    localWorkSize[0] = localWorkSize[1] = 8;
    localWorkSize[2] = 4;
  }

  // Program kernels arguments for the blit operation
  cl_mem mem = as_cl<amd::Memory>(srcMemory.owner());
  setArgument(kernels_[blitType], 0, sizeof(cl_mem), &mem);
  mem = as_cl<amd::Memory>(dstView->owner());
  setArgument(kernels_[blitType], 1, sizeof(cl_mem), &mem);
  uint32_t memFmtSize = dstImage->getImageFormat().getElementSize();
  uint32_t components = dstImage->getImageFormat().getNumChannels();

  // 1 element granularity for writes by default
  cl_int granularity = 1;
  if (memFmtSize == 2) {
    granularity = 2;
  } else if (memFmtSize >= 4) {
    granularity = 4;
  }
  CondLog(((srcOrigin[0] % granularity) != 0), "Unaligned offset in blit!");
  cl_ulong srcOrg[4] = {srcOrigin[0] / granularity, srcOrigin[1], srcOrigin[2], 0};
  setArgument(kernels_[blitType], 2, sizeof(srcOrg), srcOrg);

  cl_int dstOrg[4] = {(cl_int)dstOrigin[0], (cl_int)dstOrigin[1], (cl_int)dstOrigin[2], 0};
  cl_int copySize[4] = {(cl_int)size[0], (cl_int)size[1], (cl_int)size[2], 0};

  setArgument(kernels_[blitType], 3, sizeof(dstOrg), dstOrg);
  setArgument(kernels_[blitType], 4, sizeof(copySize), copySize);

  // Program memory format
  uint multiplier = memFmtSize / sizeof(uint32_t);
  multiplier = (multiplier == 0) ? 1 : multiplier;
  cl_uint format[4] = {components, memFmtSize / components, multiplier, 0};
  setArgument(kernels_[blitType], 5, sizeof(format), format);

  // Program row and slice pitches
  cl_ulong pitch[4] = {0};
  CalcRowSlicePitches(pitch, copySize, rowPitch, slicePitch, gpuMem(dstMemory));
  setArgument(kernels_[blitType], 6, sizeof(pitch), pitch);

  // Create ND range object for the kernel's execution
  amd::NDRangeContainer ndrange(dim, globalWorkOffset, globalWorkSize, localWorkSize);

  // Execute the blit
  address parameters = captureArguments(kernels_[blitType]);
  result = gpu().submitKernelInternal(ndrange, *kernels_[blitType], parameters, nullptr);
  releaseArguments(parameters);
  if (releaseView) {
    // todo SRD programming could be changed to avoid a stall
    gpu().releaseGpuMemoryFence();
    dstView->owner()->release();
  }

  return result;
}

bool KernelBlitManager::copyImageToBuffer(device::Memory& srcMemory, device::Memory& dstMemory,
                                          const amd::Coord3D& srcOrigin,
                                          const amd::Coord3D& dstOrigin, const amd::Coord3D& size,
                                          bool entire, size_t rowPitch, size_t slicePitch) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;
  static const bool CopyRect = false;
  // Flush DMA for ASYNC copy
  static const bool FlushDMA = true;
  amd::Image* srcImage = static_cast<amd::Image*>(srcMemory.owner());
  size_t imgRowPitch = size[0] * srcImage->getImageFormat().getElementSize();
  size_t imgSlicePitch = imgRowPitch * size[1];

  if (setup_.disableCopyImageToBuffer_) {
    result = DmaBlitManager::copyImageToBuffer(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                               entire, rowPitch, slicePitch);
    synchronize();
    return result;
  }
  // Check if buffer is in system memory with direct access
  else if (dstMemory.isHostMemDirectAccess() &&
           (((rowPitch == 0) && (slicePitch == 0)) ||
            ((rowPitch == imgRowPitch) && ((slicePitch == 0) || (slicePitch == imgSlicePitch))))) {
    // First attempt to do this all with DMA,
    // but there are restriciton with older hardware
    // If the dest buffer is external physical(SDI), copy two step as
    // single step SDMA is causing corruption and the cause is under investigation
    if (dev().settings().imageDMA_) {
      result = DmaBlitManager::copyImageToBuffer(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                                 entire, rowPitch, slicePitch);
      if (result) {
        synchronize();
        return result;
      }
    }
  }

  if (!result) {
    result = copyImageToBufferKernel(srcMemory, dstMemory, srcOrigin, dstOrigin, size, entire,
                                     rowPitch, slicePitch);
  }

  synchronize();

  return result;
}

bool KernelBlitManager::copyImageToBufferKernel(device::Memory& srcMemory,
                                                device::Memory& dstMemory,
                                                const amd::Coord3D& srcOrigin,
                                                const amd::Coord3D& dstOrigin,
                                                const amd::Coord3D& size, bool entire,
                                                size_t rowPitch, size_t slicePitch) const {
  bool rejected = false;
  Memory* srcView = &gpuMem(srcMemory);
  bool releaseView = false;
  bool result = false;
  amd::Image* srcImage = static_cast<amd::Image*>(srcMemory.owner());
  amd::Image::Format newFormat(srcImage->getImageFormat());

  // Find unsupported formats
  for (uint i = 0; i < RejectedFormatDataTotal; ++i) {
    if (RejectedData[i].clOldType_ == newFormat.image_channel_data_type) {
      newFormat.image_channel_data_type = RejectedData[i].clNewType_;
      rejected = true;
      break;
    }
  }

  // Find unsupported channel's order
  for (uint i = 0; i < RejectedFormatChannelTotal; ++i) {
    if (RejectedOrder[i].clOldType_ == newFormat.image_channel_order) {
      newFormat.image_channel_order = RejectedOrder[i].clNewType_;
      rejected = true;
      break;
    }
  }

  // If the image format was rejected, then attempt to create a view
  if (rejected &&
      // todo ROC runtime has a problem with a view for this format
      (srcImage->getImageFormat().image_channel_data_type != CL_UNORM_INT_101010)) {
    srcView = createView(gpuMem(srcMemory), newFormat, CL_MEM_READ_ONLY);
    if (srcView != nullptr) {
      rejected = false;
      releaseView = true;
    }
  }

  // Fall into the host path if the image format was rejected
  if (rejected) {
    return DmaBlitManager::copyImageToBuffer(srcMemory, dstMemory, srcOrigin, dstOrigin, size,
                                             entire, rowPitch, slicePitch);
  }

  uint blitType = BlitCopyImageToBuffer;
  size_t dim = 0;
  size_t globalWorkOffset[3] = {0, 0, 0};
  size_t globalWorkSize[3];
  size_t localWorkSize[3];

  // Program the kernels workload depending on the blit dimensions
  dim = 3;
  // Find the current blit type
  if (srcImage->getDims() == 1) {
    globalWorkSize[0] = amd::alignUp(size[0], 256);
    globalWorkSize[1] = amd::alignUp(size[1], 1);
    globalWorkSize[2] = amd::alignUp(size[2], 1);
    localWorkSize[0] = 256;
    localWorkSize[1] = localWorkSize[2] = 1;
  } else if (srcImage->getDims() == 2) {
    globalWorkSize[0] = amd::alignUp(size[0], 16);
    globalWorkSize[1] = amd::alignUp(size[1], 16);
    globalWorkSize[2] = amd::alignUp(size[2], 1);
    localWorkSize[0] = localWorkSize[1] = 16;
    localWorkSize[2] = 1;
  } else {
    globalWorkSize[0] = amd::alignUp(size[0], 8);
    globalWorkSize[1] = amd::alignUp(size[1], 8);
    globalWorkSize[2] = amd::alignUp(size[2], 4);
    localWorkSize[0] = localWorkSize[1] = 8;
    localWorkSize[2] = 4;
  }

  // Program kernels arguments for the blit operation
  cl_mem mem = as_cl<amd::Memory>(srcView->owner());
  setArgument(kernels_[blitType], 0, sizeof(cl_mem), &mem);
  mem = as_cl<amd::Memory>(dstMemory.owner());
  setArgument(kernels_[blitType], 1, sizeof(cl_mem), &mem);

  // Update extra paramters for USHORT and UBYTE pointers.
  // Only then compiler can optimize the kernel to use
  // UAV Raw for other writes
  setArgument(kernels_[blitType], 2, sizeof(cl_mem), &mem);
  setArgument(kernels_[blitType], 3, sizeof(cl_mem), &mem);

  cl_int srcOrg[4] = {(cl_int)srcOrigin[0], (cl_int)srcOrigin[1], (cl_int)srcOrigin[2], 0};
  cl_int copySize[4] = {(cl_int)size[0], (cl_int)size[1], (cl_int)size[2], 0};
  setArgument(kernels_[blitType], 4, sizeof(srcOrg), srcOrg);
  uint32_t memFmtSize = srcImage->getImageFormat().getElementSize();
  uint32_t components = srcImage->getImageFormat().getNumChannels();

  // 1 element granularity for writes by default
  cl_int granularity = 1;
  if (memFmtSize == 2) {
    granularity = 2;
  } else if (memFmtSize >= 4) {
    granularity = 4;
  }
  CondLog(((dstOrigin[0] % granularity) != 0), "Unaligned offset in blit!");
  cl_ulong dstOrg[4] = {dstOrigin[0] / granularity, dstOrigin[1], dstOrigin[2], 0};
  setArgument(kernels_[blitType], 5, sizeof(dstOrg), dstOrg);
  setArgument(kernels_[blitType], 6, sizeof(copySize), copySize);

  // Program memory format
  uint multiplier = memFmtSize / sizeof(uint32_t);
  multiplier = (multiplier == 0) ? 1 : multiplier;
  cl_uint format[4] = {components, memFmtSize / components, multiplier, 0};
  setArgument(kernels_[blitType], 7, sizeof(format), format);

  // Program row and slice pitches
  cl_ulong pitch[4] = {0};
  CalcRowSlicePitches(pitch, copySize, rowPitch, slicePitch, gpuMem(srcMemory));
  setArgument(kernels_[blitType], 8, sizeof(pitch), pitch);

  // Create ND range object for the kernel's execution
  amd::NDRangeContainer ndrange(dim, globalWorkOffset, globalWorkSize, localWorkSize);

  // Execute the blit
  address parameters = captureArguments(kernels_[blitType]);
  result = gpu().submitKernelInternal(ndrange, *kernels_[blitType], parameters, nullptr);
  releaseArguments(parameters);
  if (releaseView) {
    // todo SRD programming could be changed to avoid a stall
    gpu().releaseGpuMemoryFence();
    srcView->owner()->release();
  }

  return result;
}

bool KernelBlitManager::copyImage(device::Memory& srcMemory, device::Memory& dstMemory,
                                  const amd::Coord3D& srcOrigin, const amd::Coord3D& dstOrigin,
                                  const amd::Coord3D& size, bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool rejected = false;
  Memory* srcView = &gpuMem(srcMemory);
  Memory* dstView = &gpuMem(dstMemory);
  bool releaseView = false;
  bool result = false;
  amd::Image* srcImage = static_cast<amd::Image*>(srcMemory.owner());
  amd::Image* dstImage = static_cast<amd::Image*>(dstMemory.owner());
  amd::Image::Format newFormat(srcImage->getImageFormat());

  // Find unsupported formats
  for (uint i = 0; i < RejectedFormatDataTotal; ++i) {
    if (RejectedData[i].clOldType_ == newFormat.image_channel_data_type) {
      newFormat.image_channel_data_type = RejectedData[i].clNewType_;
      rejected = true;
      break;
    }
  }

  // Search for the rejected channel's order only if the format was rejected
  // Note: Image blit is independent from the channel order
  if (rejected) {
    for (uint i = 0; i < RejectedFormatChannelTotal; ++i) {
      if (RejectedOrder[i].clOldType_ == newFormat.image_channel_order) {
        newFormat.image_channel_order = RejectedOrder[i].clNewType_;
        rejected = true;
        break;
      }
    }
  }

  // Attempt to create a view if the format was rejected
  if (rejected) {
    srcView = createView(gpuMem(srcMemory), newFormat, CL_MEM_READ_ONLY);
    if (srcView != nullptr) {
      dstView = createView(gpuMem(dstMemory), newFormat, CL_MEM_WRITE_ONLY);
      if (dstView != nullptr) {
        rejected = false;
        releaseView = true;
      } else {
        delete srcView;
      }
    }
  }

  // Fall into the host path for the entire 2D copy or
  // if the image format was rejected
  if (rejected) {
    result = DmaBlitManager::copyImage(srcMemory, dstMemory, srcOrigin, dstOrigin, size, entire);
    synchronize();
    return result;
  }

  uint blitType = BlitCopyImage;
  size_t dim = 0;
  size_t globalWorkOffset[3] = {0, 0, 0};
  size_t globalWorkSize[3];
  size_t localWorkSize[3];

  // Program the kernels workload depending on the blit dimensions
  dim = 3;
  // Find the current blit type
  if ((srcImage->getDims() == 1) || (dstImage->getDims() == 1)) {
    globalWorkSize[0] = amd::alignUp(size[0], 256);
    globalWorkSize[1] = amd::alignUp(size[1], 1);
    globalWorkSize[2] = amd::alignUp(size[2], 1);
    localWorkSize[0] = 256;
    localWorkSize[1] = localWorkSize[2] = 1;
  } else if ((srcImage->getDims() == 2) || (dstImage->getDims() == 2)) {
    globalWorkSize[0] = amd::alignUp(size[0], 16);
    globalWorkSize[1] = amd::alignUp(size[1], 16);
    globalWorkSize[2] = amd::alignUp(size[2], 1);
    localWorkSize[0] = localWorkSize[1] = 16;
    localWorkSize[2] = 1;
  } else {
    globalWorkSize[0] = amd::alignUp(size[0], 8);
    globalWorkSize[1] = amd::alignUp(size[1], 8);
    globalWorkSize[2] = amd::alignUp(size[2], 4);
    localWorkSize[0] = localWorkSize[1] = 8;
    localWorkSize[2] = 4;
  }

  // The current OpenCL spec allows "copy images from a 1D image
  // array object to a 1D image array object" only.
  if ((gpuMem(srcMemory).owner()->getType() == CL_MEM_OBJECT_IMAGE1D_ARRAY) ||
      (gpuMem(dstMemory).owner()->getType() == CL_MEM_OBJECT_IMAGE1D_ARRAY)) {
    blitType = BlitCopyImage1DA;
  }

  // Program kernels arguments for the blit operation
  cl_mem mem = as_cl<amd::Memory>(srcView->owner());
  setArgument(kernels_[blitType], 0, sizeof(cl_mem), &mem);
  mem = as_cl<amd::Memory>(dstView->owner());
  setArgument(kernels_[blitType], 1, sizeof(cl_mem), &mem);

  // Program source origin
  cl_int srcOrg[4] = {(cl_int)srcOrigin[0], (cl_int)srcOrigin[1], (cl_int)srcOrigin[2], 0};
  setArgument(kernels_[blitType], 2, sizeof(srcOrg), srcOrg);

  // Program destinaiton origin
  cl_int dstOrg[4] = {(cl_int)dstOrigin[0], (cl_int)dstOrigin[1], (cl_int)dstOrigin[2], 0};
  setArgument(kernels_[blitType], 3, sizeof(dstOrg), dstOrg);

  cl_int copySize[4] = {(cl_int)size[0], (cl_int)size[1], (cl_int)size[2], 0};
  setArgument(kernels_[blitType], 4, sizeof(copySize), copySize);

  // Create ND range object for the kernel's execution
  amd::NDRangeContainer ndrange(dim, globalWorkOffset, globalWorkSize, localWorkSize);

  // Execute the blit
  address parameters = captureArguments(kernels_[blitType]);
  result = gpu().submitKernelInternal(ndrange, *kernels_[blitType], parameters, nullptr);
  releaseArguments(parameters);
  if (releaseView) {
    // todo SRD programming could be changed to avoid a stall
    gpu().releaseGpuMemoryFence();
    srcView->owner()->release();
    dstView->owner()->release();
  }

  synchronize();

  return result;
}

void FindPinSize(size_t& pinSize, const amd::Coord3D& size, size_t& rowPitch, size_t& slicePitch,
                 const Memory& mem) {
  amd::Image* image = static_cast<amd::Image*>(mem.owner());
  pinSize = size[0] * image->getImageFormat().getElementSize();
  if ((rowPitch == 0) || (rowPitch == pinSize)) {
    rowPitch = 0;
  } else {
    pinSize = rowPitch;
  }

  // Calculate the pin size, which should be equal to the copy size
  for (uint i = 1; i < image->getDims(); ++i) {
    pinSize *= size[i];
    if (i == 1) {
      if ((slicePitch == 0) || (slicePitch == pinSize)) {
        slicePitch = 0;
      } else {
        if (mem.owner()->getType() != CL_MEM_OBJECT_IMAGE1D_ARRAY) {
          pinSize = slicePitch;
        } else {
          pinSize = slicePitch * size[i];
        }
      }
    }
  }
}

bool KernelBlitManager::readImage(device::Memory& srcMemory, void* dstHost,
                                  const amd::Coord3D& origin, const amd::Coord3D& size,
                                  size_t rowPitch, size_t slicePitch, bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;

  // Use host copy if memory has direct access
  if (setup_.disableReadImage_ || (srcMemory.isHostMemDirectAccess() && !srcMemory.isCpuUncached())) {
    result = HostBlitManager::readImage(srcMemory, dstHost, origin, size, rowPitch, slicePitch, entire);
    synchronize();
    return result;
  } else {
    size_t pinSize;
    FindPinSize(pinSize, size, rowPitch, slicePitch, gpuMem(srcMemory));

    size_t partial;
    amd::Memory* amdMemory = pinHostMemory(dstHost, pinSize, partial);

    if (amdMemory == nullptr) {
      // Force SW copy
      result =
          DmaBlitManager::readImage(srcMemory, dstHost, origin, size, rowPitch, slicePitch, entire);
      synchronize();
      return result;
    }

    // Readjust destination offset
    const amd::Coord3D dstOrigin(partial);

    // Get device memory for this virtual device
    Memory* dstMemory = dev().getRocMemory(amdMemory);

    // Copy image to buffer
    result = copyImageToBuffer(srcMemory, *dstMemory, origin, dstOrigin, size, entire, rowPitch,
                               slicePitch);

    // Add pinned memory for a later release
    gpu().addPinnedMem(amdMemory);
  }

  synchronize();

  return result;
}

bool KernelBlitManager::writeImage(const void* srcHost, device::Memory& dstMemory,
                                   const amd::Coord3D& origin, const amd::Coord3D& size,
                                   size_t rowPitch, size_t slicePitch, bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;

  // Use host copy if memory has direct access
  if (setup_.disableWriteImage_ || dstMemory.isHostMemDirectAccess()) {
    result = HostBlitManager::writeImage(srcHost, dstMemory, origin, size, rowPitch, slicePitch, entire);
    synchronize();
    return result;
  } else {
    size_t pinSize;
    FindPinSize(pinSize, size, rowPitch, slicePitch, gpuMem(dstMemory));

    size_t partial;
    amd::Memory* amdMemory = pinHostMemory(srcHost, pinSize, partial);

    if (amdMemory == nullptr) {
      // Force SW copy
      result = DmaBlitManager::writeImage(srcHost, dstMemory, origin, size, rowPitch, slicePitch,
                                          entire);
      synchronize();
      return result;
    }

    // Readjust destination offset
    const amd::Coord3D srcOrigin(partial);

    // Get device memory for this virtual device
    Memory* srcMemory = dev().getRocMemory(amdMemory);

    // Copy image to buffer
    result = copyBufferToImage(*srcMemory, dstMemory, srcOrigin, origin, size, entire, rowPitch,
                               slicePitch);

    // Add pinned memory for a later release
    gpu().addPinnedMem(amdMemory);
  }

  synchronize();

  return result;
}

bool KernelBlitManager::copyBufferRect(device::Memory& srcMemory, device::Memory& dstMemory,
                                       const amd::BufferRect& srcRectIn,
                                       const amd::BufferRect& dstRectIn, const amd::Coord3D& sizeIn,
                                       bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;
  bool rejected = false;

  // Fall into the ROC path for rejected transfers
  if (setup_.disableCopyBufferRect_ ||
      srcMemory.isHostMemDirectAccess() || dstMemory.isHostMemDirectAccess()) {
    result = DmaBlitManager::copyBufferRect(srcMemory, dstMemory, srcRectIn, dstRectIn, sizeIn, entire);

    if (result) {
      synchronize();
      return result;
    }
  }

  uint blitType = BlitCopyBufferRect;
  size_t dim = 3;
  size_t globalWorkOffset[3] = {0, 0, 0};
  size_t globalWorkSize[3];
  size_t localWorkSize[3];

  const static uint CopyRectAlignment[3] = {16, 4, 1};

  bool aligned;
  uint i;
  for (i = 0; i < sizeof(CopyRectAlignment) / sizeof(uint); i++) {
    // Check source alignments
    aligned = ((srcRectIn.rowPitch_ % CopyRectAlignment[i]) == 0);
    aligned &= ((srcRectIn.slicePitch_ % CopyRectAlignment[i]) == 0);
    aligned &= ((srcRectIn.start_ % CopyRectAlignment[i]) == 0);

    // Check destination alignments
    aligned &= ((dstRectIn.rowPitch_ % CopyRectAlignment[i]) == 0);
    aligned &= ((dstRectIn.slicePitch_ % CopyRectAlignment[i]) == 0);
    aligned &= ((dstRectIn.start_ % CopyRectAlignment[i]) == 0);

    // Check copy size alignment in the first dimension
    aligned &= ((sizeIn[0] % CopyRectAlignment[i]) == 0);

    if (aligned) {
      if (CopyRectAlignment[i] != 1) {
        blitType = BlitCopyBufferRectAligned;
      }
      break;
    }
  }

  amd::BufferRect srcRect;
  amd::BufferRect dstRect;
  amd::Coord3D size(sizeIn[0], sizeIn[1], sizeIn[2]);

  srcRect.rowPitch_ = srcRectIn.rowPitch_ / CopyRectAlignment[i];
  srcRect.slicePitch_ = srcRectIn.slicePitch_ / CopyRectAlignment[i];
  srcRect.start_ = srcRectIn.start_ / CopyRectAlignment[i];
  srcRect.end_ = srcRectIn.end_ / CopyRectAlignment[i];

  dstRect.rowPitch_ = dstRectIn.rowPitch_ / CopyRectAlignment[i];
  dstRect.slicePitch_ = dstRectIn.slicePitch_ / CopyRectAlignment[i];
  dstRect.start_ = dstRectIn.start_ / CopyRectAlignment[i];
  dstRect.end_ = dstRectIn.end_ / CopyRectAlignment[i];

  size.c[0] /= CopyRectAlignment[i];

  // Program the kernel's workload depending on the transfer dimensions
  if ((size[1] == 1) && (size[2] == 1)) {
    globalWorkSize[0] = amd::alignUp(size[0], 256);
    globalWorkSize[1] = 1;
    globalWorkSize[2] = 1;
    localWorkSize[0] = 256;
    localWorkSize[1] = 1;
    localWorkSize[2] = 1;
  } else if (size[2] == 1) {
    globalWorkSize[0] = amd::alignUp(size[0], 16);
    globalWorkSize[1] = amd::alignUp(size[1], 16);
    globalWorkSize[2] = 1;
    localWorkSize[0] = localWorkSize[1] = 16;
    localWorkSize[2] = 1;
  } else {
    globalWorkSize[0] = amd::alignUp(size[0], 8);
    globalWorkSize[1] = amd::alignUp(size[1], 8);
    globalWorkSize[2] = amd::alignUp(size[2], 4);
    localWorkSize[0] = localWorkSize[1] = 8;
    localWorkSize[2] = 4;
  }


  // Program kernels arguments for the blit operation
  cl_mem mem = as_cl<amd::Memory>(srcMemory.owner());
  setArgument(kernels_[blitType], 0, sizeof(cl_mem), &mem);
  mem = as_cl<amd::Memory>(dstMemory.owner());
  setArgument(kernels_[blitType], 1, sizeof(cl_mem), &mem);
  cl_ulong src[4] = {srcRect.rowPitch_, srcRect.slicePitch_, srcRect.start_, 0};
  setArgument(kernels_[blitType], 2, sizeof(src), src);
  cl_ulong dst[4] = {dstRect.rowPitch_, dstRect.slicePitch_, dstRect.start_, 0};
  setArgument(kernels_[blitType], 3, sizeof(dst), dst);
  cl_ulong copySize[4] = {size[0], size[1], size[2], CopyRectAlignment[i]};
  setArgument(kernels_[blitType], 4, sizeof(copySize), copySize);

  // Create ND range object for the kernel's execution
  amd::NDRangeContainer ndrange(dim, globalWorkOffset, globalWorkSize, localWorkSize);

  // Execute the blit
  address parameters = captureArguments(kernels_[blitType]);
  result = gpu().submitKernelInternal(ndrange, *kernels_[blitType], parameters, nullptr);
  releaseArguments(parameters);
  synchronize();

  return result;
}

bool KernelBlitManager::readBuffer(device::Memory& srcMemory, void* dstHost,
                                   const amd::Coord3D& origin, const amd::Coord3D& size,
                                   bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;
  // Use host copy if memory has direct access
  if (setup_.disableReadBuffer_ || (srcMemory.isHostMemDirectAccess() && !srcMemory.isCpuUncached())) {
    result = HostBlitManager::readBuffer(srcMemory, dstHost, origin, size, entire);
    synchronize();
    return result;
  } else {
    size_t pinSize = size[0];
    // Check if a pinned transfer can be executed with a single pin
    if ((pinSize <= dev().settings().pinnedXferSize_) && (pinSize > MinSizeForPinnedTransfer)) {
      size_t partial;
      amd::Memory* amdMemory = pinHostMemory(dstHost, pinSize, partial);

      if (amdMemory == nullptr) {
        // Force SW copy
        result = DmaBlitManager::readBuffer(srcMemory, dstHost, origin, size, entire);
        synchronize();
        return result;
      }

      // Readjust host mem offset
      amd::Coord3D dstOrigin(partial);

      // Get device memory for this virtual device
      Memory* dstMemory = dev().getRocMemory(amdMemory);

      // Copy image to buffer
      result = copyBuffer(srcMemory, *dstMemory, origin, dstOrigin, size, entire);

      // Add pinned memory for a later release
      gpu().addPinnedMem(amdMemory);
    } else {
      result = DmaBlitManager::readBuffer(srcMemory, dstHost, origin, size, entire);
    }
  }

  synchronize();

  return result;
}

bool KernelBlitManager::readBufferRect(device::Memory& srcMemory, void* dstHost,
                                       const amd::BufferRect& bufRect,
                                       const amd::BufferRect& hostRect, const amd::Coord3D& size,
                                       bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;

  // Use host copy if memory has direct access
  if (setup_.disableReadBufferRect_ ||
      (srcMemory.isHostMemDirectAccess() && !srcMemory.isCpuUncached())) {
    result = HostBlitManager::readBufferRect(srcMemory, dstHost, bufRect, hostRect, size, entire);
    synchronize();
    return result;
  } else {
    size_t pinSize = hostRect.start_ + hostRect.end_;
    size_t partial;
    amd::Memory* amdMemory = pinHostMemory(dstHost, pinSize, partial);

    if (amdMemory == nullptr) {
      // Force SW copy
      result = DmaBlitManager::readBufferRect(srcMemory, dstHost, bufRect, hostRect, size, entire);
      synchronize();
      return result;
    }

    // Readjust host mem offset
    amd::BufferRect rect;
    rect.rowPitch_ = hostRect.rowPitch_;
    rect.slicePitch_ = hostRect.slicePitch_;
    rect.start_ = hostRect.start_ + partial;
    rect.end_ = hostRect.end_;

    // Get device memory for this virtual device
    Memory* dstMemory = dev().getRocMemory(amdMemory);

    // Copy image to buffer
    result = copyBufferRect(srcMemory, *dstMemory, bufRect, rect, size, entire);

    // Add pinned memory for a later release
    gpu().addPinnedMem(amdMemory);
  }

  synchronize();

  return result;
}

bool KernelBlitManager::writeBuffer(const void* srcHost, device::Memory& dstMemory,
                                    const amd::Coord3D& origin, const amd::Coord3D& size,
                                    bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;

  // Use host copy if memory has direct access
  if (setup_.disableWriteBuffer_ || dstMemory.isHostMemDirectAccess() ||
      gpuMem(dstMemory).IsPersistentDirectMap()) {
    result = HostBlitManager::writeBuffer(srcHost, dstMemory, origin, size, entire);
    synchronize();
    return result;
  } else {
    size_t pinSize = size[0];

    // Check if a pinned transfer can be executed with a single pin
    if ((pinSize <= dev().settings().pinnedXferSize_) && (pinSize > MinSizeForPinnedTransfer)) {
      size_t partial;
      amd::Memory* amdMemory = pinHostMemory(srcHost, pinSize, partial);

      if (amdMemory == nullptr) {
        // Force SW copy
        result = DmaBlitManager::writeBuffer(srcHost, dstMemory, origin, size, entire);
        synchronize();
        return result;
      }

      // Readjust destination offset
      const amd::Coord3D srcOrigin(partial);

      // Get device memory for this virtual device
      Memory* srcMemory = dev().getRocMemory(amdMemory);

      // Copy buffer rect
      result = copyBuffer(*srcMemory, dstMemory, srcOrigin, origin, size, entire);

      // Add pinned memory for a later release
      gpu().addPinnedMem(amdMemory);
    } else {
      result = DmaBlitManager::writeBuffer(srcHost, dstMemory, origin, size, entire);
    }
  }

  synchronize();

  return result;
}

bool KernelBlitManager::writeBufferRect(const void* srcHost, device::Memory& dstMemory,
                                        const amd::BufferRect& hostRect,
                                        const amd::BufferRect& bufRect, const amd::Coord3D& size,
                                        bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;

  // Use host copy if memory has direct access
  if (setup_.disableWriteBufferRect_ || dstMemory.isHostMemDirectAccess() ||
      gpuMem(dstMemory).IsPersistentDirectMap()) {
    result = HostBlitManager::writeBufferRect(srcHost, dstMemory, hostRect, bufRect, size, entire);
    synchronize();
    return result;
  } else {
    size_t pinSize = hostRect.start_ + hostRect.end_;
    size_t partial;
    amd::Memory* amdMemory = pinHostMemory(srcHost, pinSize, partial);

    if (amdMemory == nullptr) {
      // Force DMA copy with staging
      result = DmaBlitManager::writeBufferRect(srcHost, dstMemory, hostRect, bufRect, size, entire);
      synchronize();
      return result;
    }

    // Readjust destination offset
    const amd::Coord3D srcOrigin(partial);

    // Get device memory for this virtual device
    Memory* srcMemory = dev().getRocMemory(amdMemory);

    // Readjust host mem offset
    amd::BufferRect rect;
    rect.rowPitch_ = hostRect.rowPitch_;
    rect.slicePitch_ = hostRect.slicePitch_;
    rect.start_ = hostRect.start_ + partial;
    rect.end_ = hostRect.end_;

    // Copy buffer rect
    result = copyBufferRect(*srcMemory, dstMemory, rect, bufRect, size, entire);

    // Add pinned memory for a later release
    gpu().addPinnedMem(amdMemory);
  }

  synchronize();

  return result;
}

bool KernelBlitManager::fillBuffer(device::Memory& memory, const void* pattern, size_t patternSize,
                                   const amd::Coord3D& origin, const amd::Coord3D& size,
                                   bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;

  // Use host fill if memory has direct access
  if (setup_.disableFillBuffer_ || memory.isHostMemDirectAccess()) {
    result = HostBlitManager::fillBuffer(memory, pattern, patternSize, origin, size, entire);
    synchronize();
    return result;
  } else {
    uint fillType = FillBuffer;
    size_t globalWorkOffset[3] = {0, 0, 0};
    cl_ulong fillSize = size[0] / patternSize;
    size_t globalWorkSize = amd::alignUp(fillSize, 256);
    size_t localWorkSize = 256;
    bool dwordAligned = ((patternSize % sizeof(uint32_t)) == 0) ? true : false;

    // Program kernels arguments for the fill operation
    cl_mem mem = as_cl<amd::Memory>(memory.owner());
    if (dwordAligned) {
      setArgument(kernels_[fillType], 0, sizeof(cl_mem), nullptr);
      setArgument(kernels_[fillType], 1, sizeof(cl_mem), &mem);
    } else {
      setArgument(kernels_[fillType], 0, sizeof(cl_mem), &mem);
      setArgument(kernels_[fillType], 1, sizeof(cl_mem), nullptr);
    }
    Memory* gpuCB = dev().getRocMemory(constantBuffer_);
    if (gpuCB == nullptr) {
      return false;
    }
    void* constBuf = constantBuffer_->getHostMem();
    memcpy(constBuf, pattern, patternSize);

    mem = as_cl<amd::Memory>(gpuCB->owner());
    setArgument(kernels_[fillType], 2, sizeof(cl_mem), &mem);
    cl_ulong offset = origin[0];
    if (dwordAligned) {
      patternSize /= sizeof(uint32_t);
      offset /= sizeof(uint32_t);
    }
    setArgument(kernels_[fillType], 3, sizeof(cl_uint), &patternSize);
    setArgument(kernels_[fillType], 4, sizeof(offset), &offset);
    setArgument(kernels_[fillType], 5, sizeof(fillSize), &fillSize);

    // Create ND range object for the kernel's execution
    amd::NDRangeContainer ndrange(1, globalWorkOffset, &globalWorkSize, &localWorkSize);

    // Execute the blit
    address parameters = captureArguments(kernels_[fillType]);
    result = gpu().submitKernelInternal(ndrange, *kernels_[fillType], parameters, nullptr);
    releaseArguments(parameters);
  }

  synchronize();

  return result;
}

bool KernelBlitManager::copyBuffer(device::Memory& srcMemory, device::Memory& dstMemory,
                                   const amd::Coord3D& srcOrigin, const amd::Coord3D& dstOrigin,
                                   const amd::Coord3D& sizeIn, bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;
  bool p2p = (&gpuMem(srcMemory).dev() != &gpuMem(dstMemory).dev());
  if (setup_.disableHwlCopyBuffer_ ||
      (!srcMemory.isHostMemDirectAccess() && !dstMemory.isHostMemDirectAccess() && !p2p)) {
    uint blitType = BlitCopyBuffer;
    size_t dim = 1;
    size_t globalWorkOffset[3] = {0, 0, 0};
    size_t globalWorkSize = 0;
    size_t localWorkSize = 0;

    // todo LC shows much better performance with the unaligned version
    const static uint CopyBuffAlignment[3] = {1 /*16*/, 1 /*4*/, 1};
    amd::Coord3D size(sizeIn[0], sizeIn[1], sizeIn[2]);

    bool aligned = false;
    uint i;
    for (i = 0; i < sizeof(CopyBuffAlignment) / sizeof(uint); i++) {
      // Check source alignments
      aligned = ((srcOrigin[0] % CopyBuffAlignment[i]) == 0);
      // Check destination alignments
      aligned &= ((dstOrigin[0] % CopyBuffAlignment[i]) == 0);
      // Check copy size alignment in the first dimension
      aligned &= ((sizeIn[0] % CopyBuffAlignment[i]) == 0);

      if (aligned) {
        if (CopyBuffAlignment[i] != 1) {
          blitType = BlitCopyBufferAligned;
        }
        break;
      }
    }

    cl_uint remain;
    if (blitType == BlitCopyBufferAligned) {
      size.c[0] /= CopyBuffAlignment[i];
    } else {
      remain = size[0] % 4;
      size.c[0] /= 4;
      size.c[0] += 1;
    }

    // Program the dispatch dimensions
    localWorkSize = 256;
    globalWorkSize = amd::alignUp(size[0], 256);

    // Program kernels arguments for the blit operation
    cl_mem mem = as_cl<amd::Memory>(srcMemory.owner());
    setArgument(kernels_[blitType], 0, sizeof(cl_mem), &mem);
    mem = as_cl<amd::Memory>(dstMemory.owner());
    setArgument(kernels_[blitType], 1, sizeof(cl_mem), &mem);
    // Program source origin
    cl_ulong srcOffset = srcOrigin[0] / CopyBuffAlignment[i];
    ;
    setArgument(kernels_[blitType], 2, sizeof(srcOffset), &srcOffset);

    // Program destinaiton origin
    cl_ulong dstOffset = dstOrigin[0] / CopyBuffAlignment[i];
    ;
    setArgument(kernels_[blitType], 3, sizeof(dstOffset), &dstOffset);

    cl_ulong copySize = size[0];
    setArgument(kernels_[blitType], 4, sizeof(copySize), &copySize);

    if (blitType == BlitCopyBufferAligned) {
      cl_int alignment = CopyBuffAlignment[i];
      setArgument(kernels_[blitType], 5, sizeof(alignment), &alignment);
    } else {
      setArgument(kernels_[blitType], 5, sizeof(remain), &remain);
    }

    // Create ND range object for the kernel's execution
    amd::NDRangeContainer ndrange(1, globalWorkOffset, &globalWorkSize, &localWorkSize);

    // Execute the blit
    address parameters = captureArguments(kernels_[blitType]);
    result = gpu().submitKernelInternal(ndrange, *kernels_[blitType], parameters, nullptr);
    releaseArguments(parameters);
  } else {
    result = DmaBlitManager::copyBuffer(srcMemory, dstMemory, srcOrigin, dstOrigin, sizeIn, entire);
  }

  synchronize();

  return result;
}

bool KernelBlitManager::fillImage(device::Memory& memory, const void* pattern,
                                  const amd::Coord3D& origin, const amd::Coord3D& size,
                                  bool entire) const {
  amd::ScopedLock k(lockXferOps_);
  bool result = false;

  // Use host fill if memory has direct access
  if (setup_.disableFillImage_ || memory.isHostMemDirectAccess()) {
    result = HostBlitManager::fillImage(memory, pattern, origin, size, entire);
    synchronize();
    return result;
  }

  uint fillType;
  size_t dim = 0;
  size_t globalWorkOffset[3] = {0, 0, 0};
  size_t globalWorkSize[3];
  size_t localWorkSize[3];
  Memory* memView = &gpuMem(memory);
  amd::Image* image = static_cast<amd::Image*>(memory.owner());
  amd::Image::Format newFormat(image->getImageFormat());

  // Program the kernels workload depending on the fill dimensions
  fillType = FillImage;
  dim = 3;

  void* newpattern = const_cast<void*>(pattern);
  cl_uint4 iFillColor;

  bool rejected = false;
  bool releaseView = false;

  // For depth, we need to create a view
  if (newFormat.image_channel_order == CL_sRGBA) {
    // Find unsupported data type
    for (uint i = 0; i < RejectedFormatDataTotal; ++i) {
      if (RejectedData[i].clOldType_ == newFormat.image_channel_data_type) {
        newFormat.image_channel_data_type = RejectedData[i].clNewType_;
        rejected = true;
        break;
      }
    }

    if (newFormat.image_channel_order == CL_sRGBA) {
      // Converting a linear RGB floating-point color value to a 8-bit unsigned integer sRGB value
      // because hw is not support write_imagef for sRGB.
      float* fColor = static_cast<float*>(newpattern);
      iFillColor.s[0] = sRGBmap(fColor[0]);
      iFillColor.s[1] = sRGBmap(fColor[1]);
      iFillColor.s[2] = sRGBmap(fColor[2]);
      iFillColor.s[3] = (cl_uint)(fColor[3] * 255.0f);
      newpattern = static_cast<void*>(&iFillColor);
      for (uint i = 0; i < RejectedFormatChannelTotal; ++i) {
        if (RejectedOrder[i].clOldType_ == newFormat.image_channel_order) {
          newFormat.image_channel_order = RejectedOrder[i].clNewType_;
          rejected = true;
          break;
        }
      }
    }
  }
  // If the image format was rejected, then attempt to create a view
  if (rejected) {
    memView = createView(gpuMem(memory), newFormat, CL_MEM_WRITE_ONLY);
    if (memView != nullptr) {
      rejected = false;
      releaseView = true;
    }
  }

  if (rejected) {
    return DmaBlitManager::fillImage(memory, pattern, origin, size, entire);
  }

  // Perform workload split to allow multiple operations in a single thread
  globalWorkSize[0] = (size[0] + TransferSplitSize - 1) / TransferSplitSize;
  // Find the current blit type
  if (image->getDims() == 1) {
    globalWorkSize[0] = amd::alignUp(globalWorkSize[0], 256);
    globalWorkSize[1] = amd::alignUp(size[1], 1);
    globalWorkSize[2] = amd::alignUp(size[2], 1);
    localWorkSize[0] = 256;
    localWorkSize[1] = localWorkSize[2] = 1;
  } else if (image->getDims() == 2) {
    globalWorkSize[0] = amd::alignUp(globalWorkSize[0], 16);
    globalWorkSize[1] = amd::alignUp(size[1], 16);
    globalWorkSize[2] = amd::alignUp(size[2], 1);
    localWorkSize[0] = localWorkSize[1] = 16;
    localWorkSize[2] = 1;
  } else {
    globalWorkSize[0] = amd::alignUp(globalWorkSize[0], 8);
    globalWorkSize[1] = amd::alignUp(size[1], 8);
    globalWorkSize[2] = amd::alignUp(size[2], 4);
    localWorkSize[0] = localWorkSize[1] = 8;
    localWorkSize[2] = 4;
  }

  // Program kernels arguments for the blit operation
  cl_mem mem = as_cl<amd::Memory>(memView->owner());
  setArgument(kernels_[fillType], 0, sizeof(cl_mem), &mem);
  setArgument(kernels_[fillType], 1, sizeof(cl_float4), newpattern);
  setArgument(kernels_[fillType], 2, sizeof(cl_int4), newpattern);
  setArgument(kernels_[fillType], 3, sizeof(cl_uint4), newpattern);

  cl_int fillOrigin[4] = {(cl_int)origin[0], (cl_int)origin[1], (cl_int)origin[2], 0};
  cl_int fillSize[4] = {(cl_int)size[0], (cl_int)size[1], (cl_int)size[2], 0};
  setArgument(kernels_[fillType], 4, sizeof(fillOrigin), fillOrigin);
  setArgument(kernels_[fillType], 5, sizeof(fillSize), fillSize);

  // Find the type of image
  uint32_t type = 0;
  switch (newFormat.image_channel_data_type) {
    case CL_SNORM_INT8:
    case CL_SNORM_INT16:
    case CL_UNORM_INT8:
    case CL_UNORM_INT16:
    case CL_UNORM_SHORT_565:
    case CL_UNORM_SHORT_555:
    case CL_UNORM_INT_101010:
    case CL_HALF_FLOAT:
    case CL_FLOAT:
      type = 0;
      break;
    case CL_SIGNED_INT8:
    case CL_SIGNED_INT16:
    case CL_SIGNED_INT32:
      type = 1;
      break;
    case CL_UNSIGNED_INT8:
    case CL_UNSIGNED_INT16:
    case CL_UNSIGNED_INT32:
      type = 2;
      break;
  }
  setArgument(kernels_[fillType], 6, sizeof(type), &type);

  // Create ND range object for the kernel's execution
  amd::NDRangeContainer ndrange(dim, globalWorkOffset, globalWorkSize, localWorkSize);

  // Execute the blit
  address parameters = captureArguments(kernels_[fillType]);
  result = gpu().submitKernelInternal(ndrange, *kernels_[fillType], parameters, nullptr);
  releaseArguments(parameters);
  if (releaseView) {
    // todo SRD programming could be changed to avoid a stall
    gpu().releaseGpuMemoryFence();
    memView->owner()->release();
  }

  synchronize();

  return result;
}

amd::Memory* DmaBlitManager::pinHostMemory(const void* hostMem, size_t pinSize,
                                           size_t& partial) const {
  size_t pinAllocSize;
  const static bool SysMem = true;
  amd::Memory* amdMemory;

  // Align offset to 4K boundary
  char* tmpHost = const_cast<char*>(
      amd::alignDown(reinterpret_cast<const char*>(hostMem), PinnedMemoryAlignment));

  // Find the partial size for unaligned copy
  partial = reinterpret_cast<const char*>(hostMem) - tmpHost;

  // Recalculate pin memory size
  pinAllocSize = amd::alignUp(pinSize + partial, PinnedMemoryAlignment);

  amdMemory = gpu().findPinnedMem(tmpHost, pinAllocSize);

  if (nullptr != amdMemory) {
    return amdMemory;
  }

  amdMemory = new (*context_) amd::Buffer(*context_, CL_MEM_USE_HOST_PTR, pinAllocSize);
  amdMemory->setVirtualDevice(&gpu());
  if ((amdMemory != nullptr) && !amdMemory->create(tmpHost, SysMem)) {
    amdMemory->release();
    return nullptr;
  }

  // Get device memory for this virtual device
  // @note: This will force real memory pinning
  Memory* srcMemory = dev().getRocMemory(amdMemory);

  if (srcMemory == nullptr) {
    // Release all pinned memory and attempt pinning again
    gpu().releasePinnedMem();
    srcMemory = dev().getRocMemory(amdMemory);
    if (srcMemory == nullptr) {
      // Release memory
      amdMemory->release();
      amdMemory = nullptr;
    }
  }

  return amdMemory;
}

Memory* KernelBlitManager::createView(const Memory& parent, cl_image_format format,
                                      cl_mem_flags flags) const {
  assert((parent.owner()->asBuffer() == nullptr) && "View supports images only");
  amd::Image* parentImage = static_cast<amd::Image*>(parent.owner());
  amd::Image* image =
      parentImage->createView(parent.owner()->getContext(), format, &gpu(), 0, flags);

  if (image == nullptr) {
    LogError("[OCL] Fail to allocate view of image object");
    return nullptr;
  }

  Image* devImage = new roc::Image(dev(), *image);
  if (devImage == nullptr) {
    LogError("[OCL] Fail to allocate device mem object for the view");
    image->release();
    return nullptr;
  }

  if (!devImage->createView(parent)) {
    LogError("[OCL] Fail to create device mem object for the view");
    delete devImage;
    image->release();
    return nullptr;
  }

  image->replaceDeviceMemory(&dev_, devImage);

  return devImage;
}

address KernelBlitManager::captureArguments(const amd::Kernel* kernel) const {
  return kernel->parameters().values();
}

void KernelBlitManager::releaseArguments(address args) const {
}

bool KernelBlitManager::runScheduler(uint64_t vqVM, amd::Memory* schedulerParam,
                                     hsa_queue_t* schedulerQueue,
                                     hsa_signal_t& schedulerSignal,
                                     uint threads) {
  size_t globalWorkOffset[1] = {0};
  size_t globalWorkSize[1] = {threads};
  size_t localWorkSize[1] = {1};

  amd::NDRangeContainer ndrange(1, globalWorkOffset, globalWorkSize, localWorkSize);

  device::Kernel* devKernel = const_cast<device::Kernel*>(kernels_[Scheduler]->getDeviceKernel(dev()));
  Kernel& gpuKernel = static_cast<Kernel&>(*devKernel);

  SchedulerParam* sp = reinterpret_cast<SchedulerParam*>(schedulerParam->getHostMem());
  memset(sp, 0, sizeof(SchedulerParam));

  Memory* schedulerMem = dev().getRocMemory(schedulerParam);
  sp->kernarg_address = reinterpret_cast<uint64_t>(schedulerMem->getDeviceMemory());

  sp->hidden_global_offset_x = 0;
  sp->hidden_global_offset_y = 0;
  sp->hidden_global_offset_z = 0;
  sp->thread_counter = 0;
  sp->child_queue = reinterpret_cast<uint64_t>(schedulerQueue);
  sp->complete_signal = schedulerSignal;

  hsa_signal_store_relaxed(schedulerSignal, 1);

  sp->scheduler_aql.header = (HSA_PACKET_TYPE_KERNEL_DISPATCH << HSA_PACKET_HEADER_TYPE) |
                             (1 << HSA_PACKET_HEADER_BARRIER) |
                             (HSA_FENCE_SCOPE_SYSTEM << HSA_PACKET_HEADER_ACQUIRE_FENCE_SCOPE) |
                             (HSA_FENCE_SCOPE_SYSTEM << HSA_PACKET_HEADER_RELEASE_FENCE_SCOPE);
  sp->scheduler_aql.setup = 1;
  sp->scheduler_aql.workgroup_size_x = 1;
  sp->scheduler_aql.workgroup_size_y = 1;
  sp->scheduler_aql.workgroup_size_z = 1;
  sp->scheduler_aql.grid_size_x = threads;
  sp->scheduler_aql.grid_size_y = 1;
  sp->scheduler_aql.grid_size_z = 1;
  sp->scheduler_aql.kernel_object = gpuKernel.KernelCodeHandle();
  sp->scheduler_aql.kernarg_address = (void*)sp->kernarg_address;
  sp->scheduler_aql.private_segment_size = 0;
  sp->scheduler_aql.group_segment_size = 0;
  sp->vqueue_header = vqVM;

  sp->parentAQL = sp->kernarg_address + sizeof(SchedulerParam);
  sp->eng_clk = (1000 * 1024) / dev().info().maxEngineClockFrequency_;

  // Use a device side global atomics to workaround the reliance of PCIe 3 atomics
  sp->write_index = hsa_queue_load_write_index_relaxed(schedulerQueue);

  cl_mem mem = as_cl<amd::Memory>(schedulerParam);
  setArgument(kernels_[Scheduler], 0, sizeof(cl_mem), &mem);

  address parameters = captureArguments(kernels_[Scheduler]);

  bool result = false;
  result = gpu().submitKernelInternal(ndrange, *kernels_[Scheduler], parameters, nullptr);
  releaseArguments(parameters);

  if (hsa_signal_wait_acquire(schedulerSignal, HSA_SIGNAL_CONDITION_LT, 1, (-1),
                                HSA_WAIT_STATE_BLOCKED) != 0) {
    LogWarning("Failed schedulerSignal wait");
    return false;
  }

  return true;
}

bool KernelBlitManager::RunGwsInit(
  uint32_t value) const {
  amd::ScopedLock k(lockXferOps_);

  size_t globalWorkOffset[1] = { 0 };
  size_t globalWorkSize[1] = { 1 };
  size_t localWorkSize[1] = { 1 };

  // Program kernels arguments
  setArgument(kernels_[GwsInit], 0, sizeof(uint32_t), &value);

  // Create ND range object for the kernel's execution
  amd::NDRangeContainer ndrange(1, globalWorkOffset, globalWorkSize, localWorkSize);

  // Execute the blit
  address parameters = captureArguments(kernels_[GwsInit]);

  bool result = gpu().submitKernelInternal(ndrange, *kernels_[GwsInit], parameters, nullptr);

  releaseArguments(parameters);

  return result;
}

}  // namespace pal