On Fri, Oct 23, 2015 at 12:39:31PM -0700, Jesse Barnes wrote:
> On 10/22/2015 01:35 PM, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> >
> > Do a dry run with rtcwake first to determine if the system even supports
> > the intended suspend state. If not, skip the test.
> >
> > Fixes a bunch of stuff on my BYT FFRD8 that doesn't support S3.
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > ---
> > lib/igt_aux.c | 6 ++++++
> > 1 file changed, 6 insertions(+)
> >
> > diff --git a/lib/igt_aux.c b/lib/igt_aux.c
> > index 04ca25b..f3c76ae 100644
> > --- a/lib/igt_aux.c
> > +++ b/lib/igt_aux.c
> > @@ -357,6 +357,9 @@ void igt_system_suspend_autoresume(void)
> > * seems to fare better. We need to investigate what's going on. */
> > igt_skip_on_simulation();
> >
> > + /* skip if system doesn't support suspend-to-mem */
> > + igt_skip_on(system("rtcwake -n -s 30 -m mem") != 0);
> > +
> > ret = system("rtcwake -s 30 -m mem");
> > igt_assert_f(ret == 0,
> > "This failure means that something is wrong with the "
> > @@ -384,6 +387,9 @@ void igt_system_hibernate_autoresume(void)
> > * seems to fare better. We need to investigate what's going on. */
> > igt_skip_on_simulation();
> >
> > + /* skip if system doesn't support suspend-to-disk */
> > + igt_skip_on(system("rtcwake -n -s 90 -m disk") != 0);
> > +
> > /* The timeout might need to be adjusted if hibernation takes too long
> > * or if we have to wait excessively long before resume
> > */
> >
>
> Are there reliable alternatives to the rtcwake alarm?
> Maybe some AMT/MEI wakeup event or some ACPI clock thing (handwaving pretty hard here)?
Depending on what the hardware supports, for hibernate to disk there's ipmi power-on.
ipmi-power -h $hostname --stat will show the status of the machine,
ipmi-power -h $hostname --on will power it on.
Maybe wake-on-lan could be an option too?
Kind regards, David
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
