[BUG] etnaviv: broken timeouts

[Lucas Stach]

Hi Kyle,

Am Donnerstag, den 14.03.2019, 23:29 -0400 schrieb Kyle Russell:
> I've observed the timeouts issue originally reported in this thread on a 
> 4.17 aarch64 kernel, and it has reproduced reliably every boot.  I tried 
> the "normal" timespec patch that Russell provided, and that seems to 
> have fixed it up.  Before finding this thread, I similarly considered 
> using ktime_get_ts instead of timespec_to_jiffies while debugging the 
> issue.  There don't appear to be many clients of timespec_to_jiffies, at 
> least in 4.17.
> 
> Is this patch acceptable for now, or is it worth holding off for a more 
> fundamental fix?
> 
> I haven't inspected the other usages of timespec_to_jiffies in detail, 
> or searched newer kernel versions to see if usage of timespec_to_jiffies 
> has changed, but if ktime_get_ts addresses some subtleties, maybe it's 
> worth removing timespec_to_jiffies?
> 
> I'll be glad to help however I can.

This fix has been merged as d066b246d482 (drm/etnaviv: correct timeout
calculation) into kernel 4.18. It hasn't been tagged for stable, but
4.17 is EOL anyways, so I suggest to consider moving to a newer kernel
release.

Regards,
Lucas