2021-07-26 22:56
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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<
Luc >
hi, could someone please tell me what the 'U' in ARM_16x16_BLOCK_U_INTERLEAVED stands for? and how exactly pixels in the block are reordered in this layout? thanks in advance
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<
anarsoul >
luc: see src/panfrost/shared/pan_tiling.c in mesa repo
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<
anarsoul >
I'm not sure what the 'U' stands for though :)
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<
Luc >
anarsoul: the comment is so detailed and helpful, thx!
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<
javierm >
danvet: I think that hit a bug in dim (or one of the git tools)
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<
javierm >
then dim push-branch drm-misc-next
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<
javierm >
but for some reasons the new file drivers/gpu/drm/drm_nomodeset.c was created in gpu/drm/drm_nomodeset.c wrongly
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<
javierm >
both the posted patched and the mbox patch have the correct path but the branch after drm-misc-next apply has the wrong one
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<
javierm >
and I didn't notice before the push so drm-misc-next is broken :(
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<
javierm >
danvet: figured out what happend and posted a patch. Sorry for missing that the patches weren't applied correctly...
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<
javierm >
wonder if dim should not attempt to do 3-way merges since it seems to be fragile and not handling when need to use -p0 instead
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<
danvet >
javierm, you should build test before pushing, not after :-)
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<
danvet >
because yes mbox patches is very lossy sometimes
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<
javierm >
danvet: yes, sorry about that. I did built test v5 before posting and wrongly assumed that the end result would be correct
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<
danvet >
javierm, yeah no worries, r-b stamped
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<
javierm >
danvet: thanks!
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<
javierm >
danvet: diff.noprefix true is a convenient config that I found not long before because allows you to copy & paste paths without having to strip the a/ b/ prefixes
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<
javierm >
but I've disabled now in all my dev machines since it seems to be a not that common setup and confusing our tools
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<
anarsoul >
I actually can't find a way in gallium driver to tell whether I need to do implicit resolve or not
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<
imirkin >
anarsoul: there's a PIPE_CAP, as always
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<
imirkin >
iirc you can do the implicit resolve when storage_samples == 1
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<
imirkin >
or something along those lines
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<
imirkin >
otherwise you have to store the full data, in theory
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<
imirkin >
i'm less well-versed in what ES says about all this, which might allow tilers to drop MSAA info
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<
imirkin >
(esp pre-ES3)
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<
anarsoul >
imirkin: thanks, alyssa already helped me on #panfrost :)
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<
imirkin >
hopefully alyssa didn't say anything too conflicting with what i said above?
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<
anarsoul >
nope, pretty much what you said
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<
imirkin >
i'm double-checking some stuff in the ES2 spec
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<
imirkin >
i'm pretty sure you should be allowed to throw away the extra info for the "default" framebuffer
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<
anarsoul >
it's PIPE_CAP_SURFACE_SAMPLE_COUNT cap and EXT_multisampled_render_to_texture for ES2
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<
anarsoul >
imirkin: yeah, I hope mesa is smart enough to set surf->texture->nr_samples for render target to 1 to avoid extra blit
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<
anarsoul >
also I guess it's time to implement lima-specific blit, I'm not sure if util_blitter() can do resolve properly for lima
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<
anarsoul >
since it doesn't support texop_txf_ms
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