[PATCH] EXA support for i830

[Thomas Winischhofer]

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Jesse Barnes wrote:
> Well, partial EXA support anyway.  This version works for me, but has 
> some issues:
> 
>   o under KDE there's a small rectangle in the upper left that won't go
>     away, I haven't isolated which change causes it yet
>   o bottom to top blits don't work for some reason, even though I'm
>     using the same command that xaa used, so they're done by the EXA
>     core (slowly)
>   o UploadToScreen and DownloadToScreen aren't implemented yet
>   o *Composite aren't implemented yet
>   o my offscreenBase calculation isn't precise, I'm missing out on an
>     adjustment made by the I830 PreInit somewhere, but it doesn't result
>     in overlap on my machine anyway (though if you have a different
>     amount of memory than me, you may see corruption)
> 
> Anyway, those things aside, it works fine for me.  I was hoping to get 
> some eyes on it since my knowledge of driver internals and the i8xx in 
> particular is pretty superficial at this point.
> 

Haven't looked at it closely, but a word of warning on memory allocation
(for xv, especially): The old "linear"s were pixel-based (pixel = bytes
* bpp) while the new "area" is byte-based.

Thomas


- --
Thomas Winischhofer
Vienna/Austria
thomas AT winischhofer DOT net          http://www.winischhofer.net/

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