]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
drm/nouveau: nv84+: fix fence context seqno's
authorMaarten Lankhorst <maarten.lankhorst@canonical.com>
Mon, 22 Sep 2014 09:08:48 +0000 (11:08 +0200)
committerDave Airlie <airlied@redhat.com>
Tue, 30 Sep 2014 05:49:06 +0000 (15:49 +1000)
commit1dadba87cba20989c5a5a56f2a86fe6672e37c30
treefcbf9c7ba8033e56585a4c8f977fe09a1a21ba36
parentd743ecf360637d489a3ba81a268f574359149601
drm/nouveau: nv84+: fix fence context seqno's

This fixes a regression introduced by "drm/nouveau: rework to new fence interface"
(commit 29ba89b2371d466).

The fence sequence should not be reset after creation, the old value is used instead.
On destruction the final value is written, to prevent another source of accidental
wraparound in case of a channel being destroyed after a hang, and unblocking any other
channel that may wait on the about-to-be-deleted channel to signal.

I'm nothing if not optimistic about any hope of recovery from that. ;-)

Reported-by: Ted Percival <ted@tedp.id.au>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Tested-by: Ted Percival <ted@tedp.id.au>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/nouveau/nv84_fence.c