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| author | Lyude Paul <lyude@redhat.com> | 2018-09-14 16:44:03 -0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2018-10-05 16:43:15 +1000 |
| commit | e46368cf77f2cb6304c51d9ff5f147cfb7dc0074 (patch) | |
| tree | d6780c58593e2973fb528ce8af5a33b41eeb2549 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 3483f08106fcd0e8edad2b9f2fc4726d25177799 (diff) | |
drm/nouveau/drm/nouveau: Grab runtime PM ref in nv50_mstc_detect()
While we currently grab a runtime PM ref in nouveau's normal connector
detection code, we apparently don't do this for MST. This means if we're
in a scenario where the GPU is suspended and userspace attempts to do a
connector probe on an MSTC connector, the probe will fail entirely due
to the DP aux channel and GPU not being woken up:
[ 316.633489] nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff
[ 316.635713] nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff
[ 316.637785] nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff
...
So, grab a runtime PM ref here.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions