AMD Preps For A Big Linux 4.20 Kernel With Vega 20, Picasso, Raven 2, xGMI, Better DC

[phoronix]

Phoronix: AMD Preps For A Big Linux 4.20 Kernel With Vega 20, Picasso, Raven 2, xGMI, Better DC

It was a busy Friday for the open-source AMD folks as in addition to releasing AMDGPU DDX 18.1 and the big ROCm 1.9 release, their latest batch of feature changes were also submitted to DRM-Next ahead of the Linux 4.20~5.0 kernel cycle. This is going to be another exciting release for Radeon Linux users...

http://www.phoronix.com/scan.php?page=news_item&px=AMDGPU-DRM-Next-4.20-2

[tildearrow]

Typos:

bringing ACP power-gating improvements

(I'm not sure but I've only heard of ACPI)

THere is also some GPUVM LRU handling efficiency enhancements.

[Adarion]

"LVDS support in the DC code"
Wasn't LVDS supposed to vanish on newer chips? And isn't DC dealing only with rather recent chips? But I might have missed something here. According to RadeonFeature Kabini generation still has and iirc. Kabini could have experimental coverage by DAL/DC.
Nice to see that lot of support.

[RussianNeuroMancer]

Support for load balancing within the AMDGPU/DRM scheduler and making use of that for the engine scheduling.

This sounds cool, but what is "stutter mode support"?

[spstarr]

LVDS is still on some CIK chips, also VGA connectors but there isnt support for VGA as of yet. My Dell worksation laptop has both and DisplayPort and HDMI.

[bridgman]

This sounds cool, but what is "stutter mode support"?

I forget the details, but it's a power-saving feature for cases where display is active but nothing else is going on. Periodic long burst reads from memory with a lot of logic powered down in between bursts... something like that.

[M@GOid]

The guys at Digital Foundry got their hands on that Chinese console with the custom AMD APU:

[Marc Driftmeyer]

Clearly, this still will only work unless Debian has sanitized it all. It fails the dkms package like clock work.

[dungeon]

The guys at Digital Foundry got their hands on that Chinese console with the custom AMD APU:

Sounds more like PC with GDDR5 memory That runs Windows, but we don't have that 15FF ID for amdgpu added yet... hmm, this could be yet another VegaM semi custom, so fake Vega but actually Polaris but who knows

ID should be added since it runs Windows and someone from China who have that Subor Z+ might want to run Linux instead, 不是吗

Also no idea if they are planning to sell this outside China or this is only locked for China market?

OK, it runs on Windows 10 IoT Enterprise (RS1), etc... Z+ new game computer ... translation says and mentioned Z+ OS (Windows 10 based)

http://www.playzplus.com

No Linux based Z- OS mentionied

Or maybe it is Ruyi OS and Ruyi console, no idea what is more up to date there

https://github.com/zplus/sdk/blob/master/docs/topics/os.md

[humbug]

Please use this kernel cycle to make amdgpu the default kernel driver for sea islands.

It's taken a very long time, need to simplify the ecosystem and reduce fragmentation. Having to manually switch in order to use Vulkan trips up non technical Linux users, and makes gaming on linux with AMD look more complex than windows.