10:20 <tomeu> sometimes it's both ;)

14:42 <alyssa> truth!

15:25 <Kamikaze> Hi. I'm trying to get panfrost working on my firefly RK3399, which has a Mali T860MP4. I'm using Arch Linux ARM with a custom compiled 5.16.0-rc7 with panfrost compiled as a module. When I modprobe panfrost, I see no kernel message output indicating anything happening at all, although I can see the module with 'lsmod'.

15:26 <spawacz> anything in dmesg?

15:26 <Kamikaze> Nothing. zilch.

15:26 <spawacz> In stock debian kernel there were errors about missing governor or something, adding it to initramfs fixes the issue

15:26 <spawacz> maybe that's the case

15:27 <Kamikaze> gpu_sched is a dependent, can see that with modinfo, and it is also loaded when i modprobe panfrost (or perhaps, was already loaded)

15:28 <Kamikaze> I am a bit of a newbie with this. Is there any way I can see if panfrost is detecting the GPU at all? is there something I can check under /sys ?

15:29 <Kamikaze> others mention that they see messages under dmesg when they load panfrost

15:41 <urja> hm. I'm looking at the mainline rk3399-firefly.dts and ... the rk3399.dtsi default for the gpu is status = "disabled" and nothing in the firefly dts seems to poke it to okay (as the usual setup is)

15:43 <Kamikaze> welp that would probably do it... should i look into a sibling rk3399 dts and try to identify and copy the relevant parts into the firefly one?

15:47 <urja> possibly, i'd also google for anyone having already done it for you... i'm not exactly sure what the firefly is like (i think relevant parts are mostly power regulation... the actual GPU is inside the SoC :P)

15:47 <urja> but eg https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/rockchip/rk3399-orangepi.dts#L235 orangepi (that i linked to) and pinebook pro have a fragment like this

15:48 <urja> just setting the supply and status

15:49 <Kamikaze> haha. yep thanks. I'll start with just that part you linked and see how we go. Quick Q: is it possible to brick a board through bad devicetree settings?

15:50 <urja> i mean.... unlikely but stuff like configuring the regulators is one of the things where i cant say it's impossible

15:53 <Kamikaze> ok cheers :)

16:01 <Kamikaze> urja: Urja genius! Thanks. I re-did the DTB, flashed it to the appropriate spot in the SDCard and what do I see:

16:01 <Kamikaze> ...snip...[ 11.680598] [drm] Initialized panfrost 1.2.0 20180908 for ff9a0000.gpu on minor 1

16:01 <Kamikaze> could this be a problem?

16:01 <Kamikaze> [ 11.671875] panfrost ff9a0000.gpu: [drm:panfrost_devfreq_init [panfrost]] Failed to register cooling device

16:04 <urja> hm, not sure how much stuff will break without the "cooling"/thermal config (if panfrost stayed loaded, i assume it will still do the GPU things? maybe?)

16:05 <urja> afaik "cooling devices" are just "what to do if hot" (which can be downclocking/volting things, even other things on the board, or obviously fans i suppose...)

16:08 <Kamikaze> there's a fan on this board, and if 'sensors' is to be believed it's only running about 35c . might just risk it. it's getting old and planning on giving it to the kids for gaming & learning.

16:11 <urja> if it has a fan (and it's already either just running or controlled somehow sanely) i'd expect it to be fine

16:12 <urja> carefully controlling what to throttle is more of the passive laptop thing

16:23 <Kamikaze> OK thanks again. I'm off now.

21:30 <macc24> new-and-improved me

21:40 <HdkR> You used to be vim, now you're neo-vim

21:43 <macc24> next time i won't almost get stranded in mountains in a snow reaching all the way to my neck

21:44 <HdkR> <3 snow

21:45 <macc24> i'm honestly impressed that my 8460p survived being in my backpack while i face-planed into deep snow couple times, rolled down the mountain for couple meters

21:47 <macc24> i've learned why you *don't* take 3 kilo 14 inch laptops with u all the time too xD

21:47 <macc24> next time i'm taking a elitebook 2560p