From: Tim Rowley <timothy.o.rowley@intel.com>
Date: Fri, 11 Mar 2016 01:20:07 +0000 (-0600)
Subject: swr: [rasterizer core] Guard against enquing work to invalid hot tiles
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c75314ec67f011599d8e84e6eaef897911d9e892;p=mesa.git

swr: [rasterizer core] Guard against enquing work to invalid hot tiles
---

diff --git a/src/gallium/drivers/swr/rasterizer/core/tilemgr.cpp b/src/gallium/drivers/swr/rasterizer/core/tilemgr.cpp
index 09cc23e5db7..ac2117bf4a4 100644
--- a/src/gallium/drivers/swr/rasterizer/core/tilemgr.cpp
+++ b/src/gallium/drivers/swr/rasterizer/core/tilemgr.cpp
@@ -74,6 +74,11 @@ void MacroTileMgr::enqueue(uint32_t x, uint32_t y, BE_WORK *pWork)
     SWR_ASSERT(x < KNOB_NUM_HOT_TILES_X);
     SWR_ASSERT(y < KNOB_NUM_HOT_TILES_Y);
 
+    if ((x & ~(KNOB_NUM_HOT_TILES_X-1)) | (y & ~(KNOB_NUM_HOT_TILES_Y-1)))
+    {
+        return;
+    }
+
     uint32_t id = TILE_ID(x, y);
 
     MacroTileQueue &tile = mTiles[id];