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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [Bisected] stuck pageflip"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85888#c24">Comment # 24</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [Bisected] stuck pageflip"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85888">bug 85888</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>On second thoughts:
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 70a75136bc61..0c43d970dbf9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9707,8 +9707,8 @@ static bool __intel_pageflip_stall_check(struct
drm_device *dev,
struct intel_unpin_work *work = intel_crtc->unpin_work;
u32 addr;
- if (atomic_read(&work->pending) >= INTEL_FLIP_COMPLETE)
- return true;
+ if (atomic_read(&work->pending) < INTEL_FLIP_COMPLETE)
+ return false;
if (!work->enable_stall_check)
return false;</pre>
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