On Fri, 2004-05-28 at 19:22 +0200, Roland Scheidegger wrote: > So, when I updated radeon_maos_arrays.c and compiled that (btw really > brave souls can try it out, just define RADEON_OLD_PACKETS to 0 in > radeon_context.h and RADEON_MAOS_VERTS to 0 in radeon_maos.c, that > codepath was only enabled in april 2002 for 9 days and probably caused a > 15% slowdown according to that mail, > http://marc.theaimsgroup.com/?l=dri-devel&m=101836484905209&w=2, so the > question of course is would implementing the maos_verts path for r200 > driver result in a 15% speedup?), I came across some stuff which seems > like it could be related to the r200 lockups. > The radeon driver today still uses RADEON_OLD_PACKETS 1, the r200 driver > also had the same variable (R200_OLD_PACKETS) but set to 0 (and not > implemented the other path, some hours ago I've removed the unused > macro). However, the reason old packets are used for radeon is according > to the cvs entry (3 jul 2002) this: "Use old packets (aos+vertex data in > one packet) to avoid problems when buffer wraps between the two new > packets. Reported by Michael a while ago...". This refers to this mail, > http://marc.theaimsgroup.com/?l=dri-devel&m=102395055325248&w=2. > > But if I look at that code, the r200 driver seems to implement it in > exactly the same way as the radeon driver (if RADEON_OLD_PACKETS is not > set). So could this be the reason why a simple glxgears + quakeIII still > locks up the chip?
I can't really say either way; sounds plausible though. Good luck digging deeper. :) Have you tried Nicolai's watchdog and engine reset patches to see if they make a difference towards recovering from the lockup? -- Earthling Michel DÃnzer | Debian (powerpc), X and DRI developer Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click -- _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
