From e17333ea1e57cbf40ad3dd5c75e5caef24d0feb4 Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Mon, 14 Jan 2019 00:25:23 -0800
Subject: [PATCH] iris: fail to create screen for older unsupported HW

loader shouldn't try, but let's be paranoid
---
 src/gallium/drivers/iris/iris_screen.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/drivers/iris/iris_screen.c b/src/gallium/drivers/iris/iris_screen.c
index 64514cddbc4..9da3369d7c2 100644
--- a/src/gallium/drivers/iris/iris_screen.c
+++ b/src/gallium/drivers/iris/iris_screen.c
@@ -555,6 +555,9 @@ iris_screen_create(int fd)
    if (!gen_get_device_info(screen->pci_id, &screen->devinfo))
       return NULL;
 
+   if (screen->devinfo.gen < 8 || screen->devinfo.is_cherryview)
+      return NULL;
+
    screen->devinfo.timestamp_frequency =
       iris_getparam_integer(screen, I915_PARAM_CS_TIMESTAMP_FREQUENCY);