On Fri, 10 Jan 2020 at 14:44, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > > We need to hold the runtime-pm wakeref to update the global PTEs (as > they exist behind a PCI BAR). However, some systems invoke ACPI during > runtime resume and so require allocations, which is verboten inside the > vm->mutex. Ergo, we must not use intel_runtime_pm_get() inside the > mutex, but lift the call outside. > > Closes: https://gitlab.freedesktop.org/drm/intel/issues/958 > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> > Cc: Matthew Auld <matthew.auld@xxxxxxxxx> > Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx> _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
