[Intel-gfx] [PATCH] drm/i915: Increase max texture to 16k for gen9+
chris at chris-wilson.co.uk
Thu Dec 7 11:11:27 UTC 2017
Quoting Alex Tu (2017-12-07 09:26:00)
> Rrefer to another patch  on mesa to extend width/height to 16384.
> For issue :
> - https://bugs.freedesktop.org/show_bug.cgi?id=102508
> - LP: #1714178 Triple monitor display failed with Dell Dock (HiDPI)
>  https://patchwork.freedesktop.org/patch/124918/
> Signed-off-by: Alex Tu <alex.tu at canonical.com>
For -intel, I just used RandR to split the fb into per-crtc-pixmaps.
However, Kristian has suggested another approach where we carve
per-crtc-pixmaps/-fb out of the global frontbuffer, which allows us to
completely get around the stride limits of scanout and have no
synchronisation penalty. We still have to create new per-crtc-fb for a
flip, just like with RandR but we can avoid the extra blit.
How one feeds such details through gbm into -modesetting, I have no
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