rocm-systems/rocclr/device/rocm/rocblit.cpp

/* Copyright (c) 2015-present Advanced Micro Devices, Inc.

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE. */

#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();
  }

  // This workaround is needed for performance to get around the slowdown
  // caused to SDMA engine powering down if its not active. Forcing agents
  // to amdgpu device causes rocr to take blit path internally.
  if (size[0] <= dev().settings().sdmaCopyThreshold_) {
    srcAgent = dstAgent = 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_silent_store_relaxed(completion_signal_, kInitVal);

    // Copy data from Host to Device
    if (hostToDev) {
      // This workaround is needed for performance to get around the slowdown
      // caused to SDMA engine powering down if its not active. Forcing agents
      // to amdgpu device causes rocr to take blit path internally.
      const hsa_agent_t srcAgent =
          (size <= dev().settings().sdmaCopyThreshold_) ? dev().getBackendDevice() : dev().getCpuAgent();

      memcpy(hsaBuffer, hostSrc + offset, size);
      status = hsa_amd_memory_async_copy(hostDst + offset, dev().getBackendDevice(), hsaBuffer,
                                         srcAgent, 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;
    }

    // This workaround is needed for performance to get around the slowdown
    // caused to SDMA engine powering down if its not active. Forcing agents
    // to amdgpu device causes rocr to take blit path internally.
    const hsa_agent_t dstAgent =
        (size <= dev().settings().sdmaCopyThreshold_) ? dev().getBackendDevice() : dev().getCpuAgent();

    // Copy data from Device to Host
    status =
        hsa_amd_memory_async_copy(hsaBuffer, dstAgent, 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_("Transfer Ops Lock", true) {
  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();
  }
}

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) {
    if (!device.createBlitProgram()) {
      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;
  }

  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 {
  uint32_t clOldType_;
  uint32_t 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(uint64_t* pitch, const int32_t* 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());
  bool swapLayer =
    (dstImage->getType() == CL_MEM_OBJECT_IMAGE1D_ARRAY) && (dev().info().gfxipVersion_ >= 1000);

  // 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;
    // Swap the Y and Z components, apparently gfx10 HW expects
    // layer in Z
    if (swapLayer) {
      globalWorkSize[2] = globalWorkSize[1];
      globalWorkSize[1] = 1;
      localWorkSize[2] = localWorkSize[1];
      localWorkSize[1] = 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
  int32_t granularity = 1;
  if (memFmtSize == 2) {
    granularity = 2;
  } else if (memFmtSize >= 4) {
    granularity = 4;
  }
  CondLog(((srcOrigin[0] % granularity) != 0), "Unaligned offset in blit!");
  uint64_t srcOrg[4] = {srcOrigin[0] / granularity, srcOrigin[1], srcOrigin[2], 0};
  setArgument(kernels_[blitType], 2, sizeof(srcOrg), srcOrg);

  int32_t dstOrg[4] = {(int32_t)dstOrigin[0], (int32_t)dstOrigin[1], (int32_t)dstOrigin[2], 0};
  int32_t copySize[4] = {(int32_t)size[0], (int32_t)size[1], (int32_t)size[2], 0};
  if (swapLayer) {
    dstOrg[2] = dstOrg[1];
    dstOrg[1] = 0;
    copySize[2] = copySize[1];
    copySize[1] = 1;
  }

  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;
  uint32_t format[4] = {components, memFmtSize / components, multiplier, 0};
  setArgument(kernels_[blitType], 5, sizeof(format), format);

  // Program row and slice pitches
  uint64_t 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());
  bool swapLayer =
    (srcImage->getType() == CL_MEM_OBJECT_IMAGE1D_ARRAY) && (dev().info().gfxipVersion_ >= 1000);

  // 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;
    // Swap the Y and Z components, apparently gfx10 HW expects
    // layer in Z
    if (swapLayer) {
      globalWorkSize[2] = globalWorkSize[1];
      globalWorkSize[1] = 1;
      localWorkSize[2] = localWorkSize[1];
      localWorkSize[1] = 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);

  int32_t srcOrg[4] = {(int32_t)srcOrigin[0], (int32_t)srcOrigin[1], (int32_t)srcOrigin[2], 0};
  int32_t copySize[4] = {(int32_t)size[0], (int32_t)size[1], (int32_t)size[2], 0};
  if (swapLayer) {
    srcOrg[2] = srcOrg[1];
    srcOrg[1] = 0;
    copySize[2] = copySize[1];
    copySize[1] = 1;
  }

  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
  int32_t granularity = 1;
  if (memFmtSize == 2) {
    granularity = 2;
  } else if (memFmtSize >= 4) {
    granularity = 4;
  }
  CondLog(((dstOrigin[0] % granularity) != 0), "Unaligned offset in blit!");
  uint64_t 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;
  uint32_t format[4] = {components, memFmtSize / components, multiplier, 0};
  setArgument(kernels_[blitType], 7, sizeof(format), format);

  // Program row and slice pitches
  uint64_t 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
  int32_t srcOrg[4] = {(int32_t)srcOrigin[0], (int32_t)srcOrigin[1], (int32_t)srcOrigin[2], 0};
  if ((srcImage->getType() == CL_MEM_OBJECT_IMAGE1D_ARRAY) && (dev().info().gfxipVersion_ >= 1000)) {
    srcOrg[3] = 1;
  }
  setArgument(kernels_[blitType], 2, sizeof(srcOrg), srcOrg);

  // Program destinaiton origin
  int32_t dstOrg[4] = {(int32_t)dstOrigin[0], (int32_t)dstOrigin[1], (int32_t)dstOrigin[2], 0};
  if ((dstImage->getType() == CL_MEM_OBJECT_IMAGE1D_ARRAY) && (dev().info().gfxipVersion_ >= 1000)) {
    dstOrg[3] = 1;
  }
  setArgument(kernels_[blitType], 3, sizeof(dstOrg), dstOrg);

  int32_t copySize[4] = {(int32_t)size[0], (int32_t)size[1], (int32_t)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);
  uint64_t src[4] = {srcRect.rowPitch_, srcRect.slicePitch_, srcRect.start_, 0};
  setArgument(kernels_[blitType], 2, sizeof(src), src);
  uint64_t dst[4] = {dstRect.rowPitch_, dstRect.slicePitch_, dstRect.start_, 0};
  setArgument(kernels_[blitType], 3, sizeof(dst), dst);
  uint64_t 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;

  if (dev().info().largeBar_ && size[0] <= kMaxD2hMemcpySize) {
    if ((srcMemory.owner()->getHostMem() == nullptr) && (srcMemory.owner()->getSvmPtr() != nullptr)) {
      void* src = srcMemory.owner()->getSvmPtr();
      std::memcpy(dstHost, src, size[0]);
      // Set HASPENDINGDISPATCH_ FLAG. That will force L2 invalidation on flush
      gpu().hasPendingDispatch();
      return true;
    }
  }

  // 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;

  if (dev().info().largeBar_ && size[0] <= kMaxH2dMemcpySize) {
    if ((dstMemory.owner()->getHostMem() == nullptr) && (dstMemory.owner()->getSvmPtr() != nullptr)) {
      void* dst = dstMemory.owner()->getSvmPtr();
      std::memcpy(dst, srcHost, size[0]);
      // Set HASPENDINGDISPATCH_ FLAG. Then synchronize() will use barrier to invalidate cache
      gpu().hasPendingDispatch();
      synchronize();
      return true;
    }
  }

  // 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};
    uint64_t 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);
    uint64_t offset = origin[0];
    if (dwordAligned) {
      patternSize /= sizeof(uint32_t);
      offset /= sizeof(uint32_t);
    }
    setArgument(kernels_[fillType], 3, sizeof(uint32_t), &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;
      }
    }

    uint32_t 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
    uint64_t srcOffset = srcOrigin[0] / CopyBuffAlignment[i];
    ;
    setArgument(kernels_[blitType], 2, sizeof(srcOffset), &srcOffset);

    // Program destinaiton origin
    uint64_t dstOffset = dstOrigin[0] / CopyBuffAlignment[i];
    ;
    setArgument(kernels_[blitType], 3, sizeof(dstOffset), &dstOffset);

    uint64_t copySize = size[0];
    setArgument(kernels_[blitType], 4, sizeof(copySize), &copySize);

    if (blitType == BlitCopyBufferAligned) {
      int32_t 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());
  bool swapLayer =
    (image->getType() == CL_MEM_OBJECT_IMAGE1D_ARRAY) && (dev().info().gfxipVersion_ >= 1000);

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

  void* newpattern = const_cast<void*>(pattern);
  uint32_t iFillColor[4];

  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[0] = sRGBmap(fColor[0]);
      iFillColor[1] = sRGBmap(fColor[1]);
      iFillColor[2] = sRGBmap(fColor[2]);
      iFillColor[3] = (uint32_t)(fColor[3] * 255.0f);
      newpattern = static_cast<void*>(&iFillColor[0]);
      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;
    // Swap the Y and Z components, apparently gfx10 HW expects
    // layer in Z
    if (swapLayer) {
      globalWorkSize[2] = globalWorkSize[1];
      globalWorkSize[1] = 1;
      localWorkSize[2] = localWorkSize[1];
      localWorkSize[1] = 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(float[4]), newpattern);
  setArgument(kernels_[fillType], 2, sizeof(int32_t[4]), newpattern);
  setArgument(kernels_[fillType], 3, sizeof(uint32_t[4]), newpattern);

  int32_t fillOrigin[4] = {(int32_t)origin[0], (int32_t)origin[1], (int32_t)origin[2], 0};
  int32_t fillSize[4] = {(int32_t)size[0], (int32_t)size[1], (int32_t)size[2], 0};
  if (swapLayer) {
    fillOrigin[2] = fillOrigin[1];
    fillOrigin[1] = 0;
    fillSize[2] = fillSize[1];
    fillSize[1] = 1;
  }
  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)) {
    DevLogPrintfError("Buffer create failed, Buffer: 0x%x \n", amdMemory);
    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