EXA for radeon experimental patch

Alan Cox alan at lxorguk.ukuu.org.uk
Wed Aug 31 10:22:09 PDT 2005

> In my non-DMA UMA hardware (sis), upload with sse peaks at about
> 540MB/sec, while download peaks at about 50MB/sec (naturally regardless
> whether SSE or MMX or whatever).

What occurs if you mark the frame buffer memory cachable and then flush
the data off the CPU by hand ? That *seemed* to be working on the VIA
when I tried abusing it

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