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| author | Chris Wilson | 2018-01-02 16:12:25 +0100 |
|---|---|---|
| committer | Chris Wilson | 2018-01-03 13:05:41 +0100 |
| commit | 83cc84c5a848748d4bb190bc179a7620491a925f (patch) | |
| tree | 4fe6df578f3b3f6eb556f9c793be38eabcdddd29 /drivers/gpu/drm/i915/i915_gem_request.c | |
| parent | drm/i915: Hold rpm wakeref for modifying the global seqno (diff) | |
| download | kernel-qcow2-linux-83cc84c5a848748d4bb190bc179a7620491a925f.tar.gz kernel-qcow2-linux-83cc84c5a848748d4bb190bc179a7620491a925f.tar.xz kernel-qcow2-linux-83cc84c5a848748d4bb190bc179a7620491a925f.zip | |
drm/i915: Assert all signalers we depended on did indeed signal
Back up our comment that all signalers should have been signaled before
we ourselves were retired with an assert to that effect.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-9-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_request.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_request.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index d575109f7a7f..72bdc203716f 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -161,12 +161,16 @@ i915_priotree_fini(struct drm_i915_private *i915, struct i915_priotree *pt) GEM_BUG_ON(!list_empty(&pt->link)); - /* Everyone we depended upon (the fences we wait to be signaled) + /* + * Everyone we depended upon (the fences we wait to be signaled) * should retire before us and remove themselves from our list. * However, retirement is run independently on each timeline and * so we may be called out-of-order. */ list_for_each_entry_safe(dep, next, &pt->signalers_list, signal_link) { + GEM_BUG_ON(!i915_priotree_signaled(dep->signaler)); + GEM_BUG_ON(!list_empty(&dep->dfs_link)); + list_del(&dep->wait_link); if (dep->flags & I915_DEPENDENCY_ALLOC) i915_dependency_free(i915, dep); @@ -174,6 +178,9 @@ i915_priotree_fini(struct drm_i915_private *i915, struct i915_priotree *pt) /* Remove ourselves from everyone who depends upon us */ list_for_each_entry_safe(dep, next, &pt->waiters_list, wait_link) { + GEM_BUG_ON(dep->signaler != pt); + GEM_BUG_ON(!list_empty(&dep->dfs_link)); + list_del(&dep->signal_link); if (dep->flags & I915_DEPENDENCY_ALLOC) i915_dependency_free(i915, dep); |