On Tue, Oct 30, 2012 at 12:20 PM, Daniel Vetter daniel@ffwll.ch wrote:
On Tue, Oct 30, 2012 at 8:09 PM, Jesse Barnes jbarnes@virtuousgeek.org wrote:
People keep whining about this, but no one seems to send a patch. This *ought* to be safe now that we've dealt with the hw races in Mario's updated code, and fixed the bugs we know about in VT switch, DPMS, and multi-head configuraions.
Signed-off-by: Jesse Barnes jbarnes@virtuousgeek.org
Afaik the fundamental race of enabling the vblank is still there, so this is just duct-tape. And our hw has the required registers (on gen5+ at least) to close this race for real and abolish all "disable vblank irq later to paper over races and smooth things out). Hence I think we should dtrt and so
[digging an old thread]
So I'm looking at this machine where we can't get good PSR residency because the vblank_offdelay is so long. Therefore, I'm suddenly very interested in solving this issue :) Of course I can't seem to find logs of the fun IRC discussion you guys had, can you describe what the race is, and also what are the registers you're talking about?
Stéphane
Nacked-by: Daniel Vetter daniel@ffwll.ch
Also discussed with Jesse on irc, we've had fun ;-)
Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel