GCN 1.0 / Southern Islands On AMDGPU Takes Another Step Forward

[frosth]

MrCooper
Don't know for sure, but i've found xf86-video-amdgpu-git:73c8dc0 in my system so probably it was used. I will check this later.

[Pontostroy]

my result with 7970

Name	Amdgpu	Radeon
Lightsmark	654	677
Furmark	5305	5303
Volplosion	2527	2529
Plot3D	76143	76372
Xonotic normal	265	286

heavy games and benchmark cause errors in dpm

[bcellin]

Does dynamic power management work out of the box or do I have to activate it as boot parameter?
I have a R7 M265 (GCN 1.1)

[frosth]

bcellin
amdgpu support for your card is still experimental so you need build kernel with admgpu_cik enable, blacklist radeon driver and then should work out of the box

[bridgman]

It has been a long time dream of ours to have compute-graphics living together like a happy family, both in C++, and preferably single-source. However, the drivers, APIs and compilers need to evolve, but the gap is closing.

Have you read about our Radeon Open Compute / HCC stack ? It's currently a separate driver set, at least for dGPU, but we have almost finished the changes we need to make the dGPU support upstreamable so we can merge it into the existing all-open and hybrid driver stacks.

http://gpuopen.com/a-brief-intro-to-boltzmann-hcc/

It currently defaults to using the closed-source HSAIL finalizer but we are in the process of moving to the same all-open LLVM-based direct-to-ISA compiler that we use in the open source graphics stack.

Only downside is that it is based around the HSA/ROC user queue model so I don't see it extending cleanly back to SI hardware (the MEC block was added in CI and up).

[bcellin]

bcellin
amdgpu support for your card is still experimental so you need build kernel with admgpu_cik enable, blacklist radeon driver and then should work out of the box

Hey, amdgpu works out of the box already for my card. I didn't have to build custom kernel or blacklist radeon.

[frosth]

Glad to hear, in arch is not enable by default still

[starshipeleven]

That this was an option under consideration boggles the mind. Thank god you didn't do that.

In serious decision-making even stupid ideas are brought to the table, discussed and (eventually) discarded.
You never know if a stupid idea is just "a bit" stupid, i.e. with some modifications you are unaware of it can become a good idea, that's part of the group's brainstorming process.

Obvious bad ideas get shot down pretty fast anyway, so it's not like a big waste of time.

[bcellin]

Glad to hear, in arch is not enable by default still

Yeah, I forgot to mention that I use Ubuntu 16.04 but you have already guessed it. Do you think I'm gonna have to set some boot parameter to experience dpm??

[frosth]

I don't think so. It just works. If for any reason don't, try amdgpu.dpm=1 in kernel line