AMD Releases Cayman Documentation, Open Driver Is Close

[Drago]

You smart guy... Bobcat is 5xxx GPU also, and it needed AMDs attention to get it working, so will be Liano. The pci ids will be added at least, but that work will be headed towards 2.6.40 in the september maybe. So no out of the box experience for Liano.

[Drago]

uhh you don't get an important point.

r800 vs bobcat is a difference they need to dev some stuff.

but there is no difference between bobcat and Liano on the driver side.

and yes adding an PCI ID is really a hard work

You are really smart guy, aren't you?
Yes, pci ids are piece of cake, but they will come to 2.6.40. 3 months after the HW starts shipping. I really hope AMD will do some Liano commits along with Caymans.

[Adarion]

Wasn't it LLano (instead of L i ano)?

[89c51]

What I'm trying to say is that the patent will stop the drivers from having these features, because no company or well-known open source organization is going to work on implementing patented software.

not all graphic hackers are paid by RH, xorg or other organizations. I think Corbin and Marek + some nouveau guys (and others) are not on they payrol of any company afaik and they have contributed a lot of code. These people have the knowledge to write driver stuff and probably can write the code needed.

i also seem to remember that S3TC has been implemented (fully or partially i don't know) in an external library or something

[Drago]

Yes, Liano is a nice piece of silicon(at least on paper), and I am waiting it for my next build.
AMD are talking about Cayman for the next merge window, and not a word about Liano. That is why I hope Bridgman shows up, to clarify the situation.

S3TC is implemented by external library onli for r300g, but not for r600g.

[tessio]

Cayman would be radeon radeon hd 7xxx?
And about S3TC, it seems to exist 3 open source implementations: libsquish, imageLib and libtxc_dxtn..

[Drago]

Cayman would be radeon radeon hd 7xxx?
And about S3TC, it seems to exist 3 open source implementations: libsquish, imageLib and libtxc_dxtn..

No, Cayman is hd 69xx. Yes, AMD get little messy this time.
I didn't know about other S3TC projects. Thanks a lot.
The way I imagined things, is that the game textures are already compressed with S3TC, and have to be fed to GPU without any further compression/decompression. Can someone clarify this.

[whitecat]

And about S3TC, it seems to exist 3 open source implementations: libsquish, imageLib and libtxc_dxtn..

Mesa can only handle libtxc_dxtn as an external lib, and only for r300.

[bridgman]

Llano work was started at the same time as Ontario, and we believe the code changes should be similar although not quite the same. We were able to get Ontario hardware into agd5f's hands first because the products are on significantly different launch schedules. I expect open source driver support for Llano will come out at roughly the same time relative to launch as Ontario did, but we'll know more in a couple of weeks.

As someone else already posted, the support for Ontario and Llano primarily involves changes to things like memory controller setup while Cayman has an entirely new shader core so there's a lot more work required there.

[Drago]

Llano work was started at the same time as Ontario, and we believe the code changes should be similar although not quite the same. We were able to get Ontario hardware into agd5f's hands first because the products are on significantly different launch schedules. I expect open source driver support for Llano will come out at roughly the same time relative to launch as Ontario did, but we'll know more in a couple of weeks.

As someone else already posted, the support for Ontario and Llano primarily involves changes to things like memory controller setup while Cayman has an entirely new shader core so there's a lot more work required there.

That is great Bridgman. I hope when Liano comes to the market, there will be already stable kernel and Mesa supporting it.