iommu: rockchip: Add internal ops to handle variants

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Add internal ops to be able to handle incoming variant v2.
The goal is to keep the overall structure of the framework but
to allow to add the evolution of this hardware block.

The ops are global for a SoC because iommu domains are not
attached to a specific devices if they are for a virtuel device like
drm. Use a global variable shouldn't be since SoC usually doesn't
embedded different versions of the iommu hardware block.
If that happen one day a WARN_ON will be displayed at probe time.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20210604164441.798362-4-benjamin.gaignard@collabora.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Benjamin Gaignard 2021-06-04 18:44:40 +02:00 • committed by Joerg Roedel

parent 9e6f3cd589

commit 227014b33f

1 changed files with 64 additions and 22 deletions

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drivers/iommu/rockchip-iommu.c

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