i965: Enable predicate support on gen >= 8.

Predication needs cmd parser only on gen7. For newer platforms, it
should be available without it.

v2 (Ken): rebase on recent changes.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index c79268f..5fcb5c6 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -1773,7 +1773,7 @@
       screen->cmd_parser_version = 0;
    }
 
-   if (screen->cmd_parser_version >= 2)
+   if (screen->devinfo.gen >= 8 || screen->cmd_parser_version >= 2)
       screen->kernel_features |= KERNEL_ALLOWS_PREDICATE_WRITES;
 
    /* Haswell requires command parser version 4 in order to have L3