vc4: Update a comment about shader validation

diff --git a/src/gallium/drivers/vc4/vc4_simulator_validate_shaders.c b/src/gallium/drivers/vc4/vc4_simulator_validate_shaders.c
index c02deb406c777f896b9ab8a185a655001d2f7116..261bb0c91001e8e2805938b6840d276d12963e6f 100644 (file)
--- a/src/gallium/drivers/vc4/vc4_simulator_validate_shaders.c
+++ b/src/gallium/drivers/vc4/vc4_simulator_validate_shaders.c
@@ -74,10 +74,8 @@ check_register_write(uint32_t waddr, bool is_b)
        case QPU_W_TLB_COLOR_MS:
        case QPU_W_TLB_COLOR_ALL:
        case QPU_W_TLB_Z:
-               /* XXX: We need to track which buffers get written by the
-                * shader, to make sure that we have those buffers set up by
-                * the config packets.  But we need to pass them for now to
-                * get things up and running.
+               /* These only interact with the tile buffer, not main memory,
+                * so they're safe.
                 */
                return true;