Il 08/12/21 13:07, Dafna Hirschfeld ha scritto:
From: Sebastian Reichel <[email protected]>In case of v4l2_reqbufs() it is possible, that a TLB flush is done without runtime PM being enabled. In that case the "Partial TLB flush timed out, falling back to full flush" warning is printed. Commit c0b57581b73b ("iommu/mediatek: Add power-domain operation") introduced has_pm as optimization to avoid checking runtime PM when there is no power domain attached. But without the PM domain there is still the device driver's runtime PM suspend handler, which disables the clock. Thus flushing should also be avoided when there is no PM domain involved. Signed-off-by: Sebastian Reichel <[email protected]> Reviewed-by: Dafna Hirschfeld <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]> _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
