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45a0155889
The tegra_hv_vblk driver use DMA_BIDIRECTIONAL in dma_map/dma_unmap for both read and write. It could add unnecessary CMO for cpu/for device (depends on R/W). Fixed this by passing the correct direction for DMA map/unmap based on read/write operation. Bug 5221800 Change-Id: Ieee50fa66c18a8e1bf23db749eba0c5f2d3745b2 Signed-off-by: Sanjith T D <std@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3340025 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: svcacv <svcacv@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com> Reviewed-by: Vipin Kumar <vipink@nvidia.com> Reviewed-by: Sreenivas Velpula <svelpula@nvidia.com>