SKL: The minimum URB start address for VS is 4

Otherwise it may result in GPU hang

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Acked-by: Zhao Yakui <yakui.zhao@intel.com>
(cherry picked from commit e4efb9ea03a975a3b47b321be3c069f6ecd409e2)

diff --git a/src/gen9_render.c b/src/gen9_render.c
index 51f6fba..da8950e 100644 (file)
--- a/src/gen9_render.c
+++ b/src/gen9_render.c
@@ -1098,7 +1098,7 @@ gen9_emit_urb(VADriverContextP ctx)
     OUT_BATCH(batch,
               (num_urb_entries << GEN7_URB_ENTRY_NUMBER_SHIFT) |
               (4 - 1) << GEN7_URB_ENTRY_SIZE_SHIFT |
-              (1 << GEN7_URB_STARTING_ADDRESS_SHIFT));
+              (4 << GEN7_URB_STARTING_ADDRESS_SHIFT));
    ADVANCE_BATCH(batch);
 
    BEGIN_BATCH(batch, 2);