Mesa 19.1 Lands Gallium Nine Support For NIR, Opens Up Intel Iris Support

[phoronix]

Phoronix: Mesa 19.1 Lands Gallium Nine Support For NIR, Opens Up Intel Iris Support

The Gallium Nine TTN support for "TGSI to NIR" to allow this Direct3D 9 state tracker to use the NIR intermediate representation as an alternative to Gallium's default TGSI representation has been merged to Git for Mesa 19.1...

http://www.phoronix.com/scan.php?page=news_item&px=Gallium-Nine-TTN-Merged

[Maslou]

Thanks for the work. It is a pity that so far only for Radeon. I have several computers with Nvidia. I would very much like to see such a compelling thing on green video cards.
Will the instructions for use, I have a desire to test a new approach!?

[Venemo]

Michael Slight correction to the article. Only the TGSI to NIR fixes were merged, the patch that enables it in Nine is not yet sent to upstream.

[geearf]

Thanks for the work. It is a pity that so far only for Radeon. I have several computers with Nvidia. I would very much like to see such a compelling thing on green video cards.
Will the instructions for use, I have a desire to test a new approach!?

It's a gallium state tracker so for gallium drivers...
Maybe with Zink it'll become possible to do something like that though.

[nuetzel]

Michael Slight correction to the article. Only the TGSI to NIR fixes were merged, the patch that enables it in Nine is not yet sent to upstream.

Hello @Venemo,

UH's tessellation is completely broken with these commits (?) - I'm bisecting, now.
With your (whole) MR before except of my reported TS 2019 NIR-Nine bug, it worked for me.

[Venemo]

Hello @Venemo,

UH's tessellation is completely broken with these commits (?) - I'm bisecting, now.
With your (whole) MR before except of my reported TS 2019 NIR-Nine bug, it worked for me.

Hi. Please let me know which mesa branch you are using? And what hardware are you running on?

[nuetzel]

Hi. Please let me know which mesa branch you are using? And what hardware are you running on?

Mesa git, as always (since 1996, Mesa 2.0 beta?). Have a look into the .mailmap file (history). ;-)
Currently running Polaris 20 (RX580, 8 GB) for our son.
NIR is enabled as 'default' here since last summer (testing for Timo).

[Venemo]

Mesa git, as always (since 1996, Mesa 2.0 beta?). Have a look into the .mailmap file (history). ;-)
Currently running Polaris 20 (RX580, 8 GB) for our son.
NIR is enabled as 'default' here since last summer (testing for Timo).

By Mesa git, I assume you mean Mesa master, right? If that is the case, then you are not yet running the code from my MR, because the part that adds NIR support to Gallium Nine is not yet sent upstream. That patch is still under development and will change, but if you want to test it, you can find it here. The plan is that on radeonsi nine will still use TGSI like it always has, unless you explicitly ask it to prefer NIR instead.

In fact if you didn't apply patch I linked, then your problem is likely caused by something else. Of course we'd still be happy to investigate it.

To be honest, we still have a bunch of issues with nine on iris, but on radeonsi (RX 570 here) I personally didn't see any regressions between nine's NIR and TGSI.

[pal666]

Maybe with Zink it'll become possible to do something like that though.

with zink it'll be something different. like dxvk or wined3d

[nuetzel]

By Mesa git, I assume you mean Mesa master, right? If that is the case, then you are not yet running the code from my MR, because the part that adds NIR support to Gallium Nine is not yet sent upstream. That patch is still under development and will change, but if you want to test it, you can find it here. The plan is that on radeonsi nine will still use TGSI like it always has, unless you explicitly ask it to prefer NIR instead.

In fact if you didn't apply patch I linked, then your problem is likely caused by something else. Of course we'd still be happy to investigate it.

To be honest, we still have a bunch of issues with nine on iris, but on radeonsi (RX 570 here) I personally didn't see any regressions between nine's NIR and TGSI.

[Mesa-dev] nir: Add ability for shaders to use window space coordinates - broken tessellation under NIR - bisected

https://lists.freedesktop.org/archives/mesa-dev/2019-March/216266.html

Happy investigation.