<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [NVC8] linux-nouveau2.6 (3.6.0-rc4) : GTX580 : Xorg freezes when using accel" href="https://bugs.freedesktop.org/show_bug.cgi?id=54437#c14">Comment # 14</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [NVC8] linux-nouveau2.6 (3.6.0-rc4) : GTX580 : Xorg freezes when using accel" href="https://bugs.freedesktop.org/show_bug.cgi?id=54437">bug 54437</a> from <a class="email" href="mailto:doityourselfteam@gmail.com" title="Dmitriy <doityourselfteam@gmail.com>"> Dmitriy</a> <pre>(In reply to <a href="show_bug.cgi?id=54437#c13">comment #13</a>) > > It's a bit of a mystery unfortunately. Adding to the annoyance, Ben said > that it does work just fine on his NVC8, although he has the less powerful > versions. Could be something with high ROP/TPC/GPC counts not being handled. > (Or multiple PARTs?) > > That might actually be an interesting experiment -- before loading nouveau, > mask out a bunch of the units and see if it helps. If it does, find the > "breaking" point. > > This is the code that computes that stuff: > > <a href="http://cgit.freedesktop.org/~darktama/nouveau/tree/nvkm/engine/graph/nvc0">http://cgit.freedesktop.org/~darktama/nouveau/tree/nvkm/engine/graph/nvc0</a>. > c#n1330 > > priv->rop_nr = (nv_rd32(priv, 0x409604) & 0x001f0000) >> 16; > priv->gpc_nr = nv_rd32(priv, 0x409604) & 0x0000001f; > for (i = 0; i < priv->gpc_nr; i++) { > priv->tpc_nr[i] = nv_rd32(priv, GPC_UNIT(i, 0x2608)); > priv->tpc_total += priv->tpc_nr[i]; > } > > Step 1: Print out the various values (i.e. number of ROPs, GPCs, and the > per-GPC TPC counts). > Step 2: Artificially lower them (to, e.g., 1) and see if it helps. If it > does, figure out which of the values matter and where the breaking points > are. > > If it doesn't help, perhaps the units need to be disabled a little harder, > e.g. by setting 0x22584/0x22588. Can you describe more detailed what I need to do? I'm afraid I'm not so advanced at this moment to understand everything in your comment. Maybe not in comments but by e-mail <a href="mailto:doityourselfteam@gmail.com">doityourselfteam@gmail.com</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>