Freedreno Lands An A2xx NIR Backend, Other Improvements For Mesa 19.0

[lorn10]

Sorry to warm up this old topic. However, does anyone (maybe Mr. robclark) knows which LTS Linux kernel includes Adreno A2xx MSM DRM and A2xx NIR support? It looks that LTS kernel 5.4 (and newer) should has both of them enabled by default. How it looks with LTS Linux kernel 4.19? Maybe that kernel version came slightly too early to have the A2xx MSM DRM feature included (and far to early to include the A2xx NIR support). Or was one of these nice A2xx support features also backported to LTS kernel 4.19?

[RussianNeuroMancer]

oh, nice (about the aarch64-laptop tree). I'm not really sure offhand about a good tablet on the market currently.. If you aren't in a hurry, then maybe wait a while.

Sure, I'm not in a hurry and of course I can wait. I just noticed that it's not that easy to buy second hand small tablet capable or running desktop Linux (which for now means BayTrail/CherryTrail-based) this days. There is no Dell 5855 on eBay anymore, and getting HP 608 was hard enough (I search only for devices with DP via USB-C support). This hardware also tend to die somehow faster than laptops (which is why I bought HP 608 while I still have Dell 5855 on hands).

[robclark]

Yeah, I see some progress here: https://github.com/aarch64-laptops/l...ommits/laptops and now there is even pre-built images.

btw, maybe you know some Snapdragon-based tablet with decent upstream support? If such thing even exist of course. (For now I have to stick to my Dell 5855, and will try HP 608 tomorrow, but I hope for some ARM-based solution for this particular "small tablet" task.)

oh, nice (about the aarch64-laptop tree). I'm not really sure offhand about a good tablet on the market currently.. If you aren't in a hurry, then maybe wait a while.

Mr. robclark and Mr. imirkin
is this correct for freedreno https://mesamatrix.net/ ?
Why "Geometry shaders" are not inplemented ? "OpenGL 3.3 - GLSL 3.30" would be a nice milestone , no ?
Thanks to all involved in freedreno !

yeah, as Ilia mentioned, it is a bit more complicated due to the way the hardware wants to run the shader per output vertex rather than once outputing N vertices. It's on the radar, but probably after finishing gles31 for a6xx, I expect.

I have an old HP Webos tablet lying around somewhere. I wonder if there is a way to test this on there...

I believe flto (who has been working on the a2xx support) has a touchpad as one of the devices he has been testing on. I think I landed all his patches to get the display enabled on it.

[You-]

I have an old HP Webos tablet lying around somewhere. I wonder if there is a way to test this on there...

[imirkin]

Mr. robclark and Mr. imirkin
is this correct for freedreno https://mesamatrix.net/ ?
Why "Geometry shaders" are not inplemented ? "OpenGL 3.3 - GLSL 3.30" would be a nice milestone , no ?
Thanks to all involved in freedreno !

Patches welcome. https://github.com/freedreno/freedre...ometry-Shaders for the results of my RE of geometry shaders on a4xx (and indications are that a5xx is very similar).

They decided to implement the shader interface for geometry shaders in a way that is not directly compatible with the way that they are normally made available in GLSL.

[RussianNeuroMancer]

The one you linked to looks like a 32b (armv7) board.. there isn't anything equiv to that..

Yep, my bad, I forgot it's ARMv7-based.

And I'm hearing some rumblings of early progress in getting linux booting on some of the windows arm laptops.

Yeah, I see some progress here: https://github.com/aarch64-laptops/l...ommits/laptops and now there is even pre-built images.

btw, maybe you know some Snapdragon-based tablet with decent upstream support? If such thing even exist of course. (For now I have to stick to my Dell 5855, and will try HP 608 tomorrow, but I hope for some ARM-based solution for this particular "small tablet" task.)

[Michael]

Why are my replies deleted/not posted ?

New users go through an auto mod queue just to ensure not a spam bot account, should be cleared now.

[xinorohp]

Why are my replies deleted/not posted ?

[robclark]

Is there fast 64-bit boards (like HiKey960/970 or ODROID-XU4Q, which is on sale right now, btw) but with Adreno instead of Mali? DP via USB3 support will be appreciated.

The one you linked to looks like a 32b (armv7) board.. there isn't anything equiv to that..

For newer/faster armv8, there is dragonboard 820c. But no displayport, and they seem to be out of stock. Hopefully that situation will change soonish. And I'm hearing some rumblings of early progress in getting linux booting on some of the windows arm laptops.

[RussianNeuroMancer]

Is there fast 64-bit boards (like HiKey960/970 or ODROID-XU4Q, which is on sale right now, btw) but with Adreno instead of Mali? DP via USB3 support will be appreciated.