[PATCH v2 01/12] drm/panfrost: Make sure MMU context lifetime is not bound to panfrost_priv

[Boris Brezillon]

On Mon, 21 Jun 2021 15:38:56 +0200
Boris Brezillon <boris.brezillon at collabora.com> wrote:

> Jobs can be in-flight when the file descriptor is closed (either because
> the process did not terminate properly, or because it didn't wait for
> all GPU jobs to be finished), and apparently panfrost_job_close() does
> not cancel already running jobs. Let's refcount the MMU context object
> so it's lifetime is no longer bound to the FD lifetime and running jobs
> can finish properly without generating spurious page faults.
> 
> Reported-by: Icecream95 <ixn at keemail.me>
> Fixes: 7282f7645d06 ("drm/panfrost: Implement per FD address spaces")
> Cc: <stable at vger.kernel.org>
> Signed-off-by: Boris Brezillon <boris.brezillon at collabora.com>

Queued this patch to drm-misc-next. I'll respin the rest of this series.