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SubjectRe: [Bug #11875] radeonfb lockup in .28-rc (bisected)
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> It makes a huge difference, with the acceleration patch:
>
> commit b1ee26bab14886350ba12a5c10cbc0696ac679bf
> Author: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Date: Wed Oct 15 22:03:46 2008 -0700
>
> radeonfb: accelerate imageblit and other improvements
>
> reverted, the test case takes 25 seconds or more instead of
> the 7 or 8 seconds we're seeing now.

Ok, thanks a lot for those tests !

So I consider the loss of perfs due to the workaround to be minor enough
here. I'll submit the patch for inclusion.

I might look at not doing the clipping in cases things are already
aligned later but I doubt it's going to be worth the pain,

Cheers,
Ben.




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