diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 2908896334f5..05969f03c0c1 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -406,6 +406,7 @@ gen8_render_ring_flush(struct intel_engine_cs *ring, { u32 flags = 0; u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; + int ret; flags |= PIPE_CONTROL_CS_STALL; @@ -422,6 +423,14 @@ gen8_render_ring_flush(struct intel_engine_cs *ring, flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; flags |= PIPE_CONTROL_QW_WRITE; flags |= PIPE_CONTROL_GLOBAL_GTT_IVB; + + /* WaCsStallBeforeStateCacheInvalidate:bdw,chv */ + ret = gen8_emit_pipe_control(ring, + PIPE_CONTROL_CS_STALL | + PIPE_CONTROL_STALL_AT_SCOREBOARD, + 0); + if (ret) + return ret; } return gen8_emit_pipe_control(ring, flags, scratch_addr); |