drm/i915: Handle ringbuffer stalls when flushing
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index bbbf505..5969c2e 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -63,9 +63,9 @@
void (*write_tail)(struct intel_ring_buffer *ring,
u32 value);
- void (*flush)(struct intel_ring_buffer *ring,
- u32 invalidate_domains,
- u32 flush_domains);
+ int __must_check (*flush)(struct intel_ring_buffer *ring,
+ u32 invalidate_domains,
+ u32 flush_domains);
int (*add_request)(struct intel_ring_buffer *ring,
u32 *seqno);
u32 (*get_seqno)(struct intel_ring_buffer *ring);