intel: Replace sprinkled intel_batchbuffer_flush with MI_FLUSH or nothing.

Most of these were to ensure that caches got synchronized between 2d (or meta)
rendering and later use of the target as a source, such as for texture
miptree setup.  Those are replaced with intel_batchbuffer_emit_mi_flush(),
which just drops an MI_FLUSH.  Most of the remainder were to ensure that
REFERENCES_CLIPRECTS batchbuffers got flushed before the lock was dropped.
Those are now replaced by automatically flushing those when dropping the lock.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_batchbuffer.h b/src/mesa/drivers/dri/intel/intel_batchbuffer.h
index d3c656c803..80b87b40f7 100644
--- a/src/mesa/drivers/dri/intel/intel_batchbuffer.h
+++ b/src/mesa/drivers/dri/intel/intel_batchbuffer.h
@@ -4,6 +4,7 @@
 #include "mtypes.h"
 
 #include "dri_bufmgr.h"
+#include "intel_reg.h"
 
 struct intel_context;
 
@@ -144,4 +145,11 @@ intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
 #define ADVANCE_BATCH() do { } while(0)
 
 
+static INLINE void
+intel_batchbuffer_emit_mi_flush(struct intel_batchbuffer *batch)
+{
+   intel_batchbuffer_require_space(batch, 4, IGNORE_CLIPRECTS);
+   intel_batchbuffer_emit_dword(batch, MI_FLUSH);
+}
+
 #endif