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Copy user buffers when not accepted by Kernel

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When performing copy operations to or from buffers allocated by the
user, it could happen that the buffer address is not accepted by
kernel, even though the buffer is valid. In those ocassions, then
allocate a new graphics allocation and copy the user buffer.

Change-Id: I6b1b6f2ef5fea0acf32c868bc87eafe8746f9a79
Signed-off: Jaime Arteaga <jaime.a.arteaga.molina@intel.com>
This commit is contained in:
Jaime Arteaga
2020-09-30 22:21:42 -07:00
committed by sys_ocldev
parent 38dc396336
commit 9f9bf38d64
5 changed files with 90 additions and 9 deletions
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10
shared/source/command_stream/command_stream_receiver.cpp
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@@ -483,12 +483,10 @@ bool CommandStreamReceiver::createAllocationForHostSurface(HostPtrSurface &surfa
allocation.reset(memoryManager->allocateGraphicsMemoryWithProperties(properties, surface.getMemoryPointer()));
if (allocation == nullptr && surface.peekIsPtrCopyAllowed()) {
// Try with no host pointer allocation and copy
AllocationProperties copyProperties{rootDeviceIndex, surface.getSurfaceSize(), GraphicsAllocation::AllocationType::INTERNAL_HOST_MEMORY, internalAllocationStorage->getDeviceBitfield()};
copyProperties.alignment = MemoryConstants::pageSize;
allocation.reset(memoryManager->allocateGraphicsMemoryWithProperties(copyProperties));
if (allocation) {
memcpy_s(allocation->getUnderlyingBuffer(), allocation->getUnderlyingBufferSize(), surface.getMemoryPointer(), surface.getSurfaceSize());
}
allocation.reset(memoryManager->allocateInternalGraphicsMemoryWithHostCopy(rootDeviceIndex,
internalAllocationStorage->getDeviceBitfield(),
surface.getMemoryPointer(),
surface.getSurfaceSize()));
}
}