Le 28/04/2011 12:32, Maxim Levitsky a écrit :
On Thu, 2011-04-28 at 01:58 +0200, Martin Peres wrote:
Hi everyone,
I would like everyone to test this set of patch as we'll need them quite soon
for timing management on nv50.
Please report success/failure by answering to this email.
Thanks in advance,
Martin
I tested this.
Patch seems to work except following problems:
Sometimes reclocking fails like this:
root@maxim-laptop:/home/maxim# echo 2>
/sys/class/drm/card0/device/performance_level
bash: echo: write error: Resource temporarily unavailable
This is expected. Unfortunately, I can't do anything better than this
for the upcoming months. I need help from the people really into the
command submission system.
[ 630.371117] [drm] nouveau 0000:01:00.0: setting performance level:
performance_level_2
[ 630.412048] [drm] nouveau 0000:01:00.0: PFIFO DMA_PUSH never depleted
(0xd06091)
I consider it not safe to reclock core if PFIFO DMA_PUSH isn't empty.
Hence the reason why I abort there.
Once it even hang the GPU.
This shouldn't happen but I managed to hang it too once. Anyway, this
isn't perfect but still way better than what is currently implemented.
Easy to reproduce while running compiz and its benchmark overlay.
Exactly, when playing open arena, the success ratio is very very low but
I don't mind yet. I first want stability and then reliability.
Also, it seems not to restore perf level after resume from ram.
Good catch, I thought I had fixed that but it doesn't seem like. I'll
fix this tonight and send an update. Thanks a lot.
Best regards
Maxim Levitsky
Thanks a lot for testing it Maxim.
Martin
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