lkml.org 
[lkml]   [2018]   [Jan]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: "irq/matrix: Spread interrupts on allocation" breaks nouveau in mainline kernel
From
Date
On Thu, 2018-01-25 at 19:46 +0100, Thomas Gleixner wrote:
> On Thu, 25 Jan 2018, Lyude Paul wrote:
>
> > I think you are right, apologies. Glad to know this isn't a regression in
> > the
> > IRQ handling code :). It looks like our nouveau problems are probably coming
> > from the fact that we don't just leave IRQs setup through suspend/resume
> > which
> > as far as I can tell, is probably not the correct thing to do.
>
> If you tear down the interrupt, then you have to make sure that it's
> completely masked and disabled on the device side (including MSI).
Does this only need to be done if we handle irq_request()/irq_free() ourselves,
or can we skip some of these steps if we let the kernel handle
disabling/enabling IRQs during s/r?
>
> Thanks,
>
> tglx

\
 
 \ /
  Last update: 2018-01-25 20:26    [W:0.098 / U:0.520 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site