We didn't set the ring flag for BLT batches, so they got run on the render ring. Shenanigans ensued, especially when we sent commands that were only valid on the BLT ring. Cc: Paul Berry <stereotype441 at gmail.com> Cc: Eric Anholt <eric at anholt.net> --- intel/intel_bufmgr_gem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c index 512bc6f..32afd73 100644 --- a/intel/intel_bufmgr_gem.c +++ b/intel/intel_bufmgr_gem.c @@ -2010,6 +2010,8 @@ aub_build_dump_ringbuffer(drm_intel_bufmgr_gem *bufmgr_gem, if (ring_flag == I915_EXEC_BSD) ring = AUB_TRACE_TYPE_RING_PRB1; + else if (ring_flag == I915_EXEC_BLT) + ring = AUB_TRACE_TYPE_RING_PRB2; /* Make a ring buffer to execute our batchbuffer. */ memset(ringbuffer, 0, sizeof(ringbuffer)); -- 1.8.1