On 23/06/2022 12:17, Andi Shyti wrote:
Hi Mauro, On Wed, Jun 15, 2022 at 04:27:39PM +0100, Mauro Carvalho Chehab wrote:From: Chris Wilson <chris.p.wilson@xxxxxxxxx> Don't allow two engines to be reset in parallel, as they would both try to select a reset bit (and send requests to common registers) and wait on that register, at the same time. Serialize control of the reset requests/acks using the uncore->lock, which will also ensure that no other GT state changes at the same time as the actual reset. Fixes: 7938d61591d3 ("drm/i915: Flush TLBs before releasing backing store") Reported-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> Cc: Andi Shyti <andi.shyti@xxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Acked-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
Notice I had a bunch of questions and asks in this series so please do not merge until those are addressed.
In this particular patch (and some others) for instance Fixes: tag, at least against that sha, shouldn't be there.
Regards, Tvrtko
