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5 * copy of this software and associated documentation files (the "Software"),
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11 * The above copyright notice and this permission notice (including the next
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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27 static int __i915_gem_timeline_init(struct drm_i915_private *i915,
28 struct i915_gem_timeline *timeline,
30 struct lock_class_key *lockclass,
36 lockdep_assert_held(&i915->drm.struct_mutex);
38 timeline->i915 = i915;
39 timeline->name = kstrdup(name ?: "[kernel]", GFP_KERNEL);
43 list_add(&timeline->link, &i915->gt.timelines);
45 /* Called during early_init before we know how many engines there are */
46 fences = dma_fence_context_alloc(ARRAY_SIZE(timeline->engine));
47 for (i = 0; i < ARRAY_SIZE(timeline->engine); i++) {
48 struct intel_timeline *tl = &timeline->engine[i];
50 tl->fence_context = fences++;
51 tl->common = timeline;
52 #ifdef CONFIG_DEBUG_SPINLOCK
53 __raw_spin_lock_init(&tl->lock.rlock, lockname, lockclass);
55 spin_lock_init(&tl->lock);
57 init_request_active(&tl->last_request, NULL);
58 INIT_LIST_HEAD(&tl->requests);
64 int i915_gem_timeline_init(struct drm_i915_private *i915,
65 struct i915_gem_timeline *timeline,
68 static struct lock_class_key class;
70 return __i915_gem_timeline_init(i915, timeline, name,
71 &class, "&timeline->lock");
74 int i915_gem_timeline_init__global(struct drm_i915_private *i915)
76 static struct lock_class_key class;
78 return __i915_gem_timeline_init(i915,
79 &i915->gt.global_timeline,
81 &class, "&global_timeline->lock");
84 void i915_gem_timeline_fini(struct i915_gem_timeline *tl)
86 lockdep_assert_held(&tl->i915->drm.struct_mutex);