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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - radeonsi: xterm scrollback buffer disappears while Shift+PgUp and PgDn"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110214#c71">Comment # 71</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - radeonsi: xterm scrollback buffer disappears while Shift+PgUp and PgDn"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110214">bug 110214</a>
from <span class="vcard"><a class="email" href="mailto:maraeo@gmail.com" title="Marek Olšák <maraeo@gmail.com>"> <span class="fn">Marek Olšák</span></a>
</span></b>
<pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=110214#c69">comment #69</a>)
<span class="quote">> (In reply to Marek Olšák from <a href="show_bug.cgi?id=110214#c67">comment #67</a>)
> > Primitives aren't reordered with DPBB. Primitives can't also survive a
> > barrier with DPBB. DPBB has no effect on behavior, it just changes how PS
> > wavefronts are formed.
>
> Is there any way that could affect the glamor shader which samples from one
> area of a buffer and draws to another (non-overlapping) area of the same
> buffer?</span >
As long as the blits are truly non-overlapping, DPBB doesn't affect it.
<span class="quote">>
> What is the reason for radeonsi disabling DPBB for blits?</span >
because it's not useful for blits and it might add latency because of binning.</pre>
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