[PATCH v3 2/3] gpu: ipu-v3: pre: add dynamic buffer layout reconfiguration

Philipp Zabel p.zabel at pengutronix.de
Mon Jun 24 09:54:37 UTC 2024


On Fr, 2024-05-17 at 12:45 +0200, Lucas Stach wrote:
> imx-drm doesn't mandate a modeset when the framebuffer modifier changes,
> but currently the tile prefetch and resolve (TPR) configuration of the
> PRE is only set up on the initial modeset.
> 
> As the TPR configuration is double buffered, same as all the other PRE
> states, we can support dynamic reconfiguration of the buffer layout from
> one frame to another. As switching between (super-)tiled and linear
> prefetch needs to touch the CTRL register make sure to do the
> reconfiguration inside the safe window.
> 
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>

Reviewed-by: Philipp Zabel <p.zabel at pengutronix.de>

regards
Philipp


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