RFT agp/intel: Hit Grantsdale with a sledgehammer

Commit Message

Chris Wilson May 8, 2018, 3:41 p.m. UTC

Let's see if fi-gdg-551 remains incohorent after forcing a few more
wbinvds!
---
 drivers/char/agp/intel-gtt.c | 1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index c6271ce250b3..607f97abbdbf 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1105,6 +1105,7 @@  static void i9xx_cleanup(void)
 
 static void i9xx_chipset_flush(void)
 {
+	wbinvd_on_all_cpus();
 	if (intel_private.i9xx_flush_page)
 		writel(1, intel_private.i9xx_flush_page);
 }