[PATCH 1/4] etnaviv: extend etna_resource with an addressing mode

[Christian Gmeiner]

Hi Lucas

Am Mo., 21. Jan. 2019 um 10:03 Uhr schrieb Lucas Stach <l.stach at pengutronix.de>:
>
> Hi Christian,
>
> first of all, thanks for figuring this out. This is really nice
> to finally know how it works.
>
> Am Montag, den 21.01.2019, 07:49 +0100 schrieb Christian Gmeiner:
> > Defines how sampler (and pixel pipes) needs to access the data
> > represented with a resource. The used default is mode is
> > ETNA_ADDRESSING_MODE_TILED.
>
> Do you see any reason why we need a separate property for this? IMHO
> etna_resource is already a bit too fat and from this set of patches I
> can't see why we can't infer the addressing mode from the layout. Do
> you have something specific in mind, that I don't see right now?
>

We are using ETNA_LAYOUT_LINEAR for compressed textures with an
addressing mode of TILED (register value of 0). That is the root cause why
was forced to add something new to etna_resource as I can not trust that
ETNA_LAYOUT_LINEAR for sampler resources implies an linear addressing
mode.

--
greets
--
Christian Gmeiner, MSc

https://christian-gmeiner.info