[linux-pm] [RFC][PATCH 2/2] PM: Rework handling of interrupts during suspend-resume

Rafael J. Wysocki rjw at sisk.pl
Thu Feb 26 01:50:49 PST 2009


On Thursday 26 February 2009, Arve Hjønnevåg wrote:
> On Tue, Feb 24, 2009 at 3:29 PM, Rafael J. Wysocki <rjw at sisk.pl> wrote:
> > BTW, appended is the current (3rd) version of the $subject patch with some
> > of your comments taken into account.  In particular, I did the following:
> > - moved [suspend|resume]_device_irqs() to a separate file (pm.c)
> > - fixed interrupt.h so that their headers are at a better place
> > - made enable_irq() clear IRQ_SUSPENDED
> > - made device_power_down() and device_power_up() call
> >  suspend_device_irqs() and resume_device_irqs(), respectively, which
> >  simplified the callers quite a bit (it changed the Xen code ordering, though,
> >  but I _think_ it still should work).
> 
> Do you plan to fix edge triggered wakeup interrupts? It still looks
> like edge triggered wakeup interrupts that occur between
> suspend_device_irqs and local_irq_disable will not cause a wakeup.

In the current version of the patch the interrupts that have IRQ_WAKEUP set
in status are not disabled.  Is this not enough?

Rafael


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