[Nouveau] NOUVEAU(0): DRI3 on EXA enabled

[Martin Peres]

On 02/11/15 08:28, poma wrote:
> An interesting results.
>
> DRI2:
>
> $ vblank_mode=0 glxgears
> ATTENTION: default value of option vblank_mode overridden by environment.
> 6321 frames in 5.0 seconds = 1264.103 FPS
> 6380 frames in 5.0 seconds = 1275.943 FPS
> 6369 frames in 5.0 seconds = 1273.629 FPS
> 6377 frames in 5.0 seconds = 1275.322 FPS
> 6387 frames in 5.0 seconds = 1277.330 FPS
> 6407 frames in 5.0 seconds = 1281.337 FPS
> 6381 frames in 5.0 seconds = 1276.053 FPS
> 6410 frames in 5.0 seconds = 1281.855 FPS
> 6405 frames in 5.0 seconds = 1280.905 FPS
> 6378 frames in 5.0 seconds = 1275.599 FPS
> ^C
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> DRI3:
>
> $ cat /etc/X11/xorg.conf.d/nouveau-dri3.conf
> Section "Device"
> 	Identifier  "Videocard0"
> 	Driver      "nouveau"
> 	Option      "DRI" "3"
> EndSection
>
> $ grep DRI3 /var/log/Xorg.0.log
> [ 4367.417] (II) NOUVEAU(0): DRI3 on EXA enabled

For the record, the only acceptable way of checking for DRI3 is to run 
the program with LIBGL_DEBUG=verbose. Any other solution is wrong.