ChanServ changed the topic of #dri-devel to: <ajax> nothing involved with X should ever be unable to find a bar
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<linkmauve>
Danct12, usually you’ll get a backtrace in dmesg containing enough information for Mesa devs to figure out what caused it.
<linkmauve>
You may also report an issue with a save file or instructions to reproduce.
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<javierm>
tzimmermann: your aperture helper unification series is awesome. Quite happy that we are finally getting there
<tzimmermann>
ha, thanks
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<tzimmermann>
jani, hi. i've found drm_connector_helper_get_modes() from one of your recent edid patchsets. but it's unused. is it avaialble for use by drivers?
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<zmike>
jenatali: it's great that we can have these deep technical discussions at such convenient times for you
<jenatali>
zmike: Yep. The joys of having a baby. I've been up since 3:45am
<zmike>
not too bad
<zmike>
you could still grab another nap before morning begins
<jenatali>
Yeah I slept most of the night though and I'm terrible at napping :P
<zmike>
sounds like a good candidate for a 2H performance goal
<jenatali>
Thanks for taking a look at that MR even though it's WIP
<zmike>
the external objects thing needs work in general
<zmike>
there's a layout param for the base spec that was never implemented, which makes the interop not actually work for most cases
<jenatali>
Yeah I noticed that :(
<jenatali>
Dunno if I'd go as far as "most cases" since it'll probably work if the layout is general/common
<zmike>
yeah if the app codes itself to work with the mesa impl it'll be fine
<jenatali>
I moreso mean that general/common is what I'd expect to be the most common interop layout
<alyssa>
zmike: "Scissored clears would have to use the slow clear in radeonsi"
<alyssa>
Right, but not implementing the CAP is also getting the slow clear, it's just hidden from you because mesa/st makes it look like a draw..
<zmike>
post on the ticket, don't shout into the void
<alyssa>
zmike: it's not gone for good if i shout here
<alyssa>
i can get someone a void* to it later
<zmike>
(void)alyssa;
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<alyssa>
zmike: posted
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<robclark>
alyssa: what do classic drivers have to do w/ mesa/st and PIPE_CAP_CLEAR_SCISSORED?
<zmike>
I think they were the primary consumer of non-scissored draws
<airlied>
the clear path was in st not mesa
<zmike>
hm then I misremembered and have no idea
<zmike>
also welcome back
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<alyssa>
robclark: nothing, apparnetly.
<alyssa>
apparently, even
<alyssa>
(I thought maybe that emulation was in mesa instead of gallium because there were non-gallium consumers, but yeah, that was in the st, oops.)
<anarsoul>
alyssa: I thought that mesa/st is just draws a quad for scissored clear
<robclark>
correct
<anarsoul>
how come blitter->draw_rectangle is more efficient?
<robclark>
I guess a tiler could realize that it doesn't need to restore some tiles? Hmm, I thought I had some wip patches at some point to add an invalidate_region() thing that the clear_with_quad() path could use
<anarsoul>
robclark: I thought that most drivers restore only tiles with damage (at least lima does so)
<robclark>
I mean, if you do a scissored clear and then a bunch of draws following, you don't need to restore the cleared tiles
<robclark>
you generally don't know what tiles are damaged, unless you implement a sw rasterizer ;-)
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<alyssa>
anarsoul: skip the VS
<alyssa>
(+ more tricks for mipmap gen)
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<ajax>
does anyone claim to understand **/st_manager.c ?
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<ajax>
its logic for drawable lifetimes seems... bad... to me
* zmike
reluctantly raises his hand
<ajax>
like: unbinding context A doesn't mean releasing its references to the drawables that were bound to it
<ajax>
just because you're switching to context B doesn't mean A's resources don't matter
<ajax>
which makes me think the else branch of st_api_make_current is wrong
<ajax>
the only time a context drops its ref to a drawable is if it 1) attaches something else instead or 2) is destroyed and then unbound
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<zmike>
that does seem plausible with the disclaimer that I'm fully in couch mode now and am browsing in the gitlab ui to refresh my memory from last year when I did know how this worked
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<jenatali>
ajax: Doesn't the context also reference the drawables?
<jenatali>
In _mesa_make_current there's _mesa_reference_framebuffer(&curCtx->...)
<jenatali>
Oh I see what you're saying. Nevermind I'm missing the point
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<ajax>
feel like i'm tugging on a very dangerous thread here
<YuGiOhJCJ>
hello, I have just bought a RX 6600 XT to replace my old RX 580, but when I type "startx" I only get a black screen (linux 5.18.10, linux-firmware 20220610, mesa 21.1.8, xf86-video-amdgpu 22.0.0, xorg-server 1.19.7), there are no errors in the Xorg log when I grep "EE" on it, so I don't know what's the problem, can you help me please?
<ajax>
1.19.7?
<ajax>
who do i need to shame
<YuGiOhJCJ>
you think it's too old?
<ajax>
over three years... i dunno, maybe your distro backports a lot
<YuGiOhJCJ>
ok then I will upgrade xorg
<kisak>
YuGiOhJCJ: the 6600 XT released somewhere around July 2021. Mesa 21.1.X is older than that.
<YuGiOhJCJ>
OK I will try with the last mesa first, then if it does not work I will upgrade xorg
<YuGiOhJCJ>
wow! thanks! upgrading mesa to 22.1.3 fixed the problem
<ezequielg>
pinchartl: heads-up, I picked this todo item, "Replace drm_detect_hdmi_monitor() with drm_display_info.is_hdmi". I'm almost done, I hope nobody picked it...
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<jenatali>
zmike: You still around? I'm annoyed at a behavior of gallium w.r.t. importing external stuff and I'm curious your take on it
<zmike>
jenatali: reluctantly
<zmike>
what annoys you
<jenatali>
Specifically, gallium specifies all the PIPE_BIND_* flags at import time that you might ever want to use with the resource. Right now I reject the import if the imported resource can't do all those things
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<jenatali>
Which essentially means that if you're importing a buffer, you'd better have specified that you want SSBO and color buffer flags on it
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<zmike>
you're actually looking at bind flags?
<zmike>
sensible-chuckle.gif
<jenatali>
And I could remove that validation, but then if you actually try to do any of those things you'll get a random blowup instead of an import failure
<zmike>
yeah I think that's just how layered drivers die
<zmike>
there's not much alternative with how the GL api is designed
<jenatali>
Yeah fair
<jenatali>
Maybe I just remove the validation :(
<zmike>
bind flags are mostly useless anyway
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<zmike>
just do what you gotta
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<ajax>
gallium should probably do less of that
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<jenatali>
Seems like for imported stuff, the state tracker could be smarter and ask the driver the bind flags it imported and then have sane fallback paths when you try to go outside of those, e.g. bind a buffer for rendering
<jenatali>
But that also sounds like a lot of work for dubious value
<zmike>
yeah those types of problems are definitely a solve-if-they-occur type of thing
<jenatali>
Yeah I guess. Fair enough, will delete my validation then
<zmike>
just cc jekstrand if you're utilizing his patented development methodology
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