[PATCH RFT] drm/etnaviv: reap idle softpin mappings when necessary

[Christian Gmeiner]

Am Fr., 17. Dez. 2021 um 22:10 Uhr schrieb Lucas Stach <l.stach at pengutronix.de>:
>
> Right now the only point where softpin mappings get removed from the
> MMU context is when the mapped GEM object is destroyed. However,
> userspace might want to reuse that address space before the object
> is destroyed, which is a valid usage, as long as all mapping in that
> region of the address space are no longer used by any GPU jobs.
>
> Implement reaping of idle MMU mappings that would otherwise
> prevent the insertion of a softpin mapping.
>
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>

Reviewed-by: Christian Gmeiner <christian.gmeiner at gmail.com>

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greets
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Christian Gmeiner, MSc

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