From d77d42e543ee82e801a8563a911826521c0ba557 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Sat, 26 Jul 2008 16:10:05 -0700
Subject: [PATCH] intel-gem: Give a better error message if the kernel rejects
 the tiling mode.

---
 src/i830_memory.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/i830_memory.c b/src/i830_memory.c
index 222882cd..2e238e25 100644
--- a/src/i830_memory.c
+++ b/src/i830_memory.c
@@ -914,7 +914,8 @@ i830_allocate_memory_tiled(ScrnInfoPtr pScrn, const char *name,
 	if (ret != 0 || set_tiling.tiling_mode == I915_TILING_NONE) {
 		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 			   "Failed to set tiling on %s: %s\n",
-			   mem->name, strerror(errno));
+			   mem->name,
+			   ret == 0 ? "rejected by kernel" : strerror(errno));
 		i830_free_memory(pScrn, mem);
 		return i830_allocate_memory(pScrn, name, size, alignment,
 					    flags);