sna: Check for incoherent writes through the GTT

Sometimes the write simply do not land until later, requiring us to be
very careful in how we perform domain tracking.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/sna/kgem.h b/src/sna/kgem.h
index b0c38dae..8101ce51 100644
--- a/src/sna/kgem.h
+++ b/src/sna/kgem.h
@@ -190,6 +190,7 @@ struct kgem {
 	uint32_t has_secure_batches :1;
 	uint32_t has_pinned_batches :1;
 	uint32_t has_caching :1;
+	uint32_t has_coherent_mmap_gtt :1;
 	uint32_t has_llc :1;
 	uint32_t has_wt :1;
 	uint32_t has_no_reloc :1;