i915: Enable texture tiling by default.

This now passes piglit testcases, and shows performance improvements
on openarena.  Blit-heavy apps may see degradation, but the
expectation is that the common case of 3D rendering will see
significant wins.

This regresses gen-teximage on my 855, and no piglit tests on my 945.

diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index a42af71..959ccfb 100644 (file)
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -47,9 +47,6 @@
 #include "i915_drm.h"
 
 #define DRI_CONF_TEXTURE_TILING(def) \
-       DRI_CONF_OPT_BEGIN(texture_tiling, bool, def)           \
-               DRI_CONF_DESC(en, "Enable texture tiling")      \
-       DRI_CONF_OPT_END                                        \
 
 PUBLIC const char __driConfigOptions[] =
    DRI_CONF_BEGIN
@@ -65,11 +62,9 @@ PUBLIC const char __driConfigOptions[] =
         DRI_CONF_DESC_END
       DRI_CONF_OPT_END
 
-#ifdef I915
-     DRI_CONF_TEXTURE_TILING(false)
-#else
-     DRI_CONF_TEXTURE_TILING(true)
-#endif
+      DRI_CONF_OPT_BEGIN(texture_tiling, bool, true)
+        DRI_CONF_DESC(en, "Enable texture tiling")
+      DRI_CONF_OPT_END
 
       DRI_CONF_OPT_BEGIN(early_z, bool, false)
         DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")