Signed-off-by: Damien Lespiau <[email protected]>
---
drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index ce14594..009e616 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -171,6 +171,8 @@ gen4_render_ring_flush(struct intel_ring_buffer *ring,
* Post-sync nonzero is what triggered this second workaround, so we
* can't use that one either. Notify enable is IRQs, which aren't
* really our business. That leaves only stall at scoreboard.
+ *
+ * WaFlushOpOnCSStall:ivb
*/
static int
intel_emit_post_sync_nonzero_flush(struct intel_ring_buffer *ring)
@@ -296,6 +298,7 @@ gen7_render_ring_flush(struct intel_ring_buffer *ring,
* Workaround: 4th PIPE_CONTROL command (except the ones with only
* read-cache invalidate bits set) must have the CS_STALL bit set. We
* don't try to be clever and just set it unconditionally.
+ * WaFlushOpOnCSStall:ivb,hsw,vlv
*/
flags |= PIPE_CONTROL_CS_STALL;
--
1.8.1.4
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