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Commit 055e0d71 authored by Samuel Pitoiset's avatar Samuel Pitoiset Committed by Emil Velikov
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radv: rework the TC-compat HTILE hardware bug with COND_EXEC

After investigating on this, it appears that COND_WRITE doesn't
work correctly in some situations. I don't know exactly why does
it fail to update DB_Z_INFO.ZRANGE_PRECISION, but as AMDVLK
also uses COND_EXEC I think there is a reason.

Now the driver stores a new metadata value in order to reflect
the last fast depth clear state. If a TC-compat HTILE is fast cleared
with 0.0f, we have to update ZRANGE_PRECISION to 0 in order to
work around that hardware bug.

This fixes rendering issues with The Forest and DXVK and doesn't
seem to introduce any regressions.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108914


Fixes: 68dead11 ("radv: update the ZRANGE_PRECISION value for the TC-compat bug")
Signed-off-by: default avatarSamuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: default avatarBas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
(cherry picked from commit 824cfc1e)
parent 5b50e6a7
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