1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index eca714c381de..b8d672828246 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -971,6 +971,23 @@ static int radeon_modeset_create_props(struct radeon_device *rdev)
         return 0;
 }
 
+void radeon_update_display_priority(struct radeon_device *rdev)
+{
+        /* adjustment options for the display watermarks */
+        if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) {
+                /* set display priority to high for r3xx, rv515 chips
+                 * this avoids flickering due to underflow to the
+                 * display controllers during heavy acceleration.
+                 */
+                if (ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515))
+                        rdev->disp_priority = 2;
+                else
+                        rdev->disp_priority = 0;
+        } else
+                rdev->disp_priority = radeon_disp_priority;
+
+}
+
 int radeon_modeset_init(struct radeon_device *rdev)
 {
         int i;