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drm/i915: Replace nested subclassing with explicit subclasses

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In the next patch, we will want a third distinct class of timeline that
may overlap with the current pair of client and engine timeline classes.
Rather than use the ad hoc markup of SINGLE_DEPTH_NESTING, initialise
the different timeline classes with an explicit subclass.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180706210710.16251-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2018-07-06 22:07:10 +01:00
parent 07e070e1e3
commit 890fd185d5
5 changed files with 7 additions and 2 deletions
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2
drivers/gpu/drm/i915/i915_request.c
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@@ -503,7 +503,7 @@ static void move_to_timeline(struct i915_request *request,
GEM_BUG_ON(request->timeline == &request->engine->timeline);
lockdep_assert_held(&request->engine->timeline.lock);
spin_lock_nested(&request->timeline->lock, SINGLE_DEPTH_NESTING);
spin_lock(&request->timeline->lock);
list_move_tail(&request->link, &timeline->requests);
spin_unlock(&request->timeline->lock);
}