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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-19 08:58:19 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-19 10:12:23 +0100 |
| commit | d67739268cf0ee928cdc5e8224090c59efacd653 (patch) | |
| tree | 75324d9b48a47246d177528f0e6678a5c6843d32 /tools/perf/scripts/python/stackcollapse.py | |
| parent | drm/i915: Always wrap the ring offset before resetting (diff) | |
| download | linux-dev-d67739268cf0ee928cdc5e8224090c59efacd653.tar.xz linux-dev-d67739268cf0ee928cdc5e8224090c59efacd653.zip | |
drm/i915/gt: Mark up the nested engine-pm timeline lock as irqsafe
We use a fake timeline->mutex lock to reassure lockdep that the timeline
is always locked when emitting requests. However, the use inside
__engine_park() may be inside hardirq and so lockdep now complains about
the mixed irq-state of the nested locked. Disable irqs around the
lockdep tracking to keep it happy.
Fixes: 6c69a45445af ("drm/i915/gt: Mark context->active_count as protected by timeline->mutex")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190819075835.20065-3-chris@chris-wilson.co.uk
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
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