alyssa changed the topic of #panfrost to: Panfrost - FLOSS Mali Midgard & Bifrost - Logs https://freenode.irclog.whitequark.org/panfrost - <daniels> avoiding X is a huge feature
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<macc24> tomeu: let me know when you have issues with linux on arm chromebooks
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<tomeu> macc24: will do (and will have), thank you!
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<Miyu-saki> htop
<Miyu-saki> Err whoops.
<macc24> htop
<HdkR> sudo htop
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<robmur01> woo, glmark2 shadow and refract are finally rendering properly on T620 :O
<robmur01> that must be a happy accident
<macc24> O.o
<macc24> robmur01: are you sure that it isn't using llvmpipe
<robmur01> yes, llvmpipe doesn't spew kernel warnings about mmap flags ;) (and I don't even have swrast in my config)
<robmur01> just trying to see if #4795 is a general SFBD thing or a specific T720 thing
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<daniels> robmur01: quick, note the SHA down and never ever move from it
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<robmur01> hmm, if T620 segfaults in bifrost_get_quirks(), that's probably not the original bug, right? :)
* robmur01 rechecks application of hacks...
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<macc24> robmur01: plot twist: T620 is the first bifrost
<robmur01> yeah, turns out if you leave the pan_destroy_screen() call in the model check you've supposedly bypassed, bad things happen...
<HdkR> I still like the theming of the GPU names. Midgard, crossing the bifrost to valhall. Next step the fall to Hel
<HdkR> Or to bring hel to the enemy? :P
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<bbrezillon> alyssa: I have a problem with vkCmdCopyImage() when one side is a tiled+compressed (like S3TC) and the other side is tiled+!compressed because tile size varies depending on the compressed state (4x4 blocks for compressed textures and 16x16 texels for !compressed ones)
<bbrezillon> I guess I can solve that with a special blit shader, but I wonder if you have a better solution
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<tomeu> robmur01: if we only had machines with 7620 in CI... :)
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<daniels> 7620? that sounds quite advanced
<macc24> the mali from 2050
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<bbrezillon> hm, according to https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#formats-compatibility, copy(R16G16B16A16 -> BC1) is not valid, or is it me misunderstanding what the spec says
<robmur01> tomeu: and yet CI is passing... :/
<tomeu> robmur01: oh, is anybody testing machines with t620 these days?
<robmur01> oh, I thought that was a typo of 720
<robmur01> could have gone either way...
<macc24> people aren't testing t620?
<tomeu> ah true, but I thought the news was that t620 is working now by luck?
<robmur01> indeed, but also that T720 is actually broken :(
<macc24> a small price to pay for t620 being working
<tomeu> robmur01: oh, I missed that report
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<tomeu> we only run gles2 on t720 on CI, but maybe we could run half of gles3
<tomeu> or traces
<tomeu> (we have two device)
<robmur01> I guess I kind of assumed glmark2 traces might be in there already (the CI setup is a magical black box to me)
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<tomeu> not really, so the regression is in glmark2?
<daniels> robmur01: hey, it's pretty transparent, you just have to be semi-fluent in YAML
<daniels> if you want to see what runs, go to https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/ and search for label is panfrost, then you can go click through the pipelines to see what actually executed
<daniels> (you'll have more luck looking at merged MRs than open ones)
<daniels> but you can also more directly just look at https://gitlab.freedesktop.org/mesa/mesa/-/blob/main/src/gallium/drivers/panfrost/ci/traces-panfrost.yml where it lists every trace file names, plus the platforms it runs on
<daniels> so there are a fair few on t860, a couple on t760, and none on t720
<daniels> (we could in theory stick more boards in there and run more in parallel, but our lab is physically constrained right now until we either rebuild the office or move to a new one, and even when it's not it's difficult to get people in the office to get them in, and even when we can tbh T720 isn't the highest of priority ...)
<HdkR> Almost as high priority as T628
<daniels> T604 ftw
<daniels> (ftsomething)
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<robmur01> wastebasket?
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<robmur01> yeah, reading the output of any given job isn't too bad, it's the digging through layers and layers of YAML (with possible diversion via understanding LAVA) to figure out what exactly gets run and how :)
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<robmur01> I am simply glad that there exist people who *do* know this stuff and let the rest of us benefit from it
<daniels> LAVA is intensely boring
<daniels> it takes the kernel and rootfs you feed it, execs the commands you tell it to, and spits out { the output from those commands, failure to DHCP, Intel's buggy XHCI implementation which causes dropped characters every now and again, can't reach anything because someone stuck a bulldozer through our fibre }
<daniels> I guess in that sense it's vaguely exciting
<daniels> but in design at least, it's very boring
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<robclark> so, what you're saying is bulldozers can make boring things exciting?
<daniels> well, it made x86-64 exciting
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<alyssa> This is one unhappy T720...
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