On Fri, 10 Jan 2020 at 14:44, Chris Wilson <[email protected]> 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 <[email protected]>
> Cc: Maarten Lankhorst <[email protected]>
> Cc: Matthew Auld <[email protected]>
> Cc: Mika Kuoppala <[email protected]>
Reviewed-by: Matthew Auld <[email protected]>
_______________________________________________
Intel-gfx mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
