From: Zhenyu Wang <zhenyuw@linux.intel.com>
Date: Fri, 5 Jun 2009 07:38:41 +0000 (+0800)
Subject: drm/i915: Disable tiling on IGDNG for now
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2cce0d8740f0d1454d012401257d96c513ce358f;p=linux-beck.git

drm/i915: Disable tiling on IGDNG for now

Swizzle bit detection not working right on it.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---

diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 540dd336e6ec..07d976bf4931 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -170,6 +170,13 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
 		}
 	}
 
+	/* FIXME: check with memory config on IGDNG */
+	if (IS_IGDNG(dev)) {
+		DRM_ERROR("disable tiling on IGDNG...\n");
+		swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
+		swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
+	}
+
 	dev_priv->mm.bit_6_swizzle_x = swizzle_x;
 	dev_priv->mm.bit_6_swizzle_y = swizzle_y;
 }