xf86-video-ati supports evergreen/NI KMS tiling now.

[Death Knight]

http://cgit.freedesktop.org/xorg/dri...42387dc4975bba

But what is KMS tiling actually? Does it boost performance?

[darkbasic]

Does it boost performance?

Yes.

[stupid character limit]

[Death Knight]

Anyway here found something too.
What is radeon backend for KMS?
Isn't KMS already supports radeon?

http://cgit.freedesktop.org/mesa/drm...559c4767fefa9f

[agd5f]

Anyway here found something too.
What is radeon backend for KMS?
Isn't KMS already supports radeon?

http://cgit.freedesktop.org/mesa/drm...559c4767fefa9f

libkms is a generic lib for getting a non-accelerated framebuffer and modesetting. It's useful for things like plymouth or testing a kms drm driver.

[Death Knight]

Oh thanks.

[kernelOfTruth]

ok, let's give that feature some testing:

- 1D only at the moment
- disabled by default

what everyday tasks would be accelerated right now with 1D ?

how to enable it ?

Thanks for that feature Alex !

[agd5f]

ok, let's give that feature some testing:



what everyday tasks would be accelerated right now with 1D ?

how to enable it ?

1D and 2D refer to the layout of the tile pattern. 1D is fixed size 8x8 micro tiles, 2D is macro tiles composed of several micro tiles. 1D tiling helps cache locality, 2D tiling helps memory channel locality. 2D is much more complex to enable since it's tied in to the memory controller configuration on each board. You can enable it with:
Option "ColorTiling" "True"
in the device section of your xorg.conf