From 7a9bdadd71730adc5266bc6758982abec5917b93 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 22 Oct 2014 19:31:10 +0100
Subject: [PATCH] sna/gen8: Clamp URB allocations for GT3

GT3 requires some reserved space in the URB allocation and so we must
reduce the amount we allocate to our vertices.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81583
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/gen8_render.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/sna/gen8_render.c b/src/sna/gen8_render.c
index 1eac5a7..a6a5dd2 100644
--- a/src/sna/gen8_render.c
+++ b/src/sna/gen8_render.c
@@ -462,21 +462,21 @@ gen8_emit_urb(struct sna *sna)
 {
 	/* num of VS entries must be divisible by 8 if size < 9 */
 	OUT_BATCH(GEN8_3DSTATE_URB_VS | (2 - 2));
-	OUT_BATCH(1024 << URB_ENTRY_NUMBER_SHIFT |
+	OUT_BATCH(960 << URB_ENTRY_NUMBER_SHIFT |
 		  (2 - 1) << URB_ENTRY_SIZE_SHIFT |
-		  0 << URB_STARTING_ADDRESS_SHIFT);
+		  4 << URB_STARTING_ADDRESS_SHIFT);
 
 	OUT_BATCH(GEN8_3DSTATE_URB_HS | (2 - 2));
 	OUT_BATCH(0 << URB_ENTRY_SIZE_SHIFT |
-		  0 << URB_STARTING_ADDRESS_SHIFT);
+		  4 << URB_STARTING_ADDRESS_SHIFT);
 
 	OUT_BATCH(GEN8_3DSTATE_URB_DS | (2 - 2));
 	OUT_BATCH(0 << URB_ENTRY_SIZE_SHIFT |
-		  0 << URB_STARTING_ADDRESS_SHIFT);
+		  4 << URB_STARTING_ADDRESS_SHIFT);
 
 	OUT_BATCH(GEN8_3DSTATE_URB_GS | (2 - 2));
 	OUT_BATCH(0 << URB_ENTRY_SIZE_SHIFT |
-		  0 << URB_STARTING_ADDRESS_SHIFT);
+		  4 << URB_STARTING_ADDRESS_SHIFT);
 }
 
 static void
-- 
2.1.0