Re: [PATCH v2] drm/i915: Increase FLR timeout from 3s to 9s

[Andi Shyti <andi.shyti@linux.intel.com>]

On Mon, May 27, 2024 at 11:47:49AM +0100, Andi Shyti wrote:
> On Fri, May 24, 2024 at 10:07:44AM -0400, Rodrigo Vivi wrote:
> > On Fri, May 24, 2024 at 01:58:53AM +0200, Andi Shyti wrote:
> > > Following the guidelines it takes 3 seconds to perform an FLR
> > > reset. Let's give it a bit more slack because this time can
> > > change depending on the platform and on the firmware
> > 
> > But did we see any issue with that?
> 
> yes, we have some FLR expiration timeouts that apparently are not
> able to bring up the device and the memory is not accessible
> anymore. It's worth giving it a bit more time.
> 
> > if that changes per platform and per firmware, shouldn't it all
> > be explicit in the spec as well?
> 
> Is it always documented? We might anyway die after the FLR reset
> failure, so that I see it quite safe to wait and pray a little
> more.

if needed I can improve the log with the dmesg error print.

Andi