Thomas Fleury 2b762363ac gpu: nvgpu: flag for physically addressed buffers ...

Some buffers like userd are physically addressed. If nvlink is
enabled, or device is not iommuable, this requires buffer to be
physically contiguous.

Add NVGPU_DMA_PHYSICALLY_ADDRESSED to identify such buffers, in
order to force physically contiguous allocation, only in above
cases.

Bug 2422486

Change-Id: I6426e23b064904e812e6b33e6d706391648a51ae
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1959034
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2018-11-27 21:42:57 -08:00

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