[Bug 69119] [hsw] WAIT_FOR_EVENT hangs (full screen vsync on pipe 1 with BCS)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69119

--- Comment #10 from Chris Wilson <chris at chris-wilson.co.uk> ---
The last version just moved the check earlier. I doubt it made a difference to
your testing (though there is a very, very small chance it could cause a hang
of its own.)

Next I would test:


diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index be02a78..20c67c9 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -3411,6 +3411,7 @@ static bool sna_emit_wait_for_scanline_hsw(struct sna
*sna,
        }
        b[4] = MI_WAIT_FOR_EVENT | event;

+       sna->kgem.batch_flags |= I915_EXEC_SECURE;
        return true;
 }


just in case

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