diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index c81eeeb..86328cb 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -175,7 +175,7 @@ TESTS_progs = \
 	gem_sync \
 	gem_threaded_access_tiled \
 	gem_tiled_fence_blits \
-	gem_tiled_pread_basic \
+	gem_tiled_pread \
 	gem_tiled_pread_pwrite \
 	gem_tiled_swapping \
 	gem_tiled_wb \
diff --git a/tests/gem_tiled_pread.c b/tests/gem_tiled_pread.c
new file mode 100644
index 0000000..20ae775
--- /dev/null
+++ b/tests/gem_tiled_pread.c
@@ -0,0 +1,228 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+/** @file gem_tiled_pread.c
+ *
+ * This is a test of pread's behavior on tiled objects with respect to the
+ * reported swizzling value.
+ *
+ * The goal is to exercise the slow_bit17_copy path for reading on bit17
+ * machines, but will also be useful for catching swizzling value bugs on
+ * other systems.
+ */
+
+#include "igt.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/ioctl.h>
+#include "drm.h"
+
+
+IGT_TEST_DESCRIPTION("Test pread behavior on tiled objects with respect to the"
+		     " reported swizzling value.");
+
+#define WIDTH 512
+#define HEIGHT 512
+static uint32_t linear[WIDTH * HEIGHT];
+
+#define PAGE_SIZE 4096
+
+static int tile_width;
+static int tile_height;
+static int tile_size;
+
+static uint32_t
+create_bo(int fd)
+{
+	uint32_t handle;
+	uint32_t *data;
+	int i;
+
+	handle = gem_create(fd, sizeof(linear));
+	gem_set_tiling(fd, handle, I915_TILING_X, WIDTH * sizeof(uint32_t));
+
+	/* Fill the BO with dwords starting at start_val */
+	data = gem_mmap__gtt(fd, handle, sizeof(linear),
+			     PROT_READ | PROT_WRITE);
+	for (i = 0; i < WIDTH*HEIGHT; i++)
+		data[i] = i;
+	munmap(data, sizeof(linear));
+
+	return handle;
+}
+
+static int
+swizzle_bit(int bit, int offset)
+{
+	return (offset & (1 << bit)) >> (bit - 6);
+}
+
+/* Translate from a swizzled offset in the tiled buffer to the corresponding
+ * value from the original linear buffer.
+ */
+static uint32_t
+calculate_expected(int offset)
+{
+	int tile_off = offset & (tile_size - 1);
+	int tile_base = offset & -tile_size;
+	int tile_index = tile_base / tile_size;
+	int tiles_per_row = 4*WIDTH / tile_width;
+
+	/* base x,y values from the tile (page) index. */
+	int base_y = tile_index / tiles_per_row * tile_height;
+	int base_x = tile_index % tiles_per_row * (tile_width/4);
+
+	/* x, y offsets within the tile */
+	int tile_y = tile_off / tile_width;
+	int tile_x = (tile_off % tile_width) / 4;
+
+	igt_debug("%3d, %3d, %3d,%3d\n", base_x, base_y, tile_x, tile_y);
+	return (base_y + tile_y) * WIDTH + base_x + tile_x;
+}
+
+static void
+run(int fd, uint32_t handle, uint32_t swizzle, int iter)
+{
+	int i;
+
+	/* Read a bunch of random subsets of the data and check that they come
+	 * out right.
+	 */
+	for (i = 0; i < iter; i++) {
+		int size = WIDTH * HEIGHT * 4;
+		int offset = (random() % size) & ~3;
+		int len = (random() % size) & ~3;
+		int j;
+
+		if (len == 0)
+			len = 4;
+
+		if (offset + len > size)
+			len = size - offset;
+
+		if (i == 0) {
+			offset = 0;
+			len = size;
+		}
+
+		gem_read(fd, handle, offset, linear, len);
+
+		/* Translate from offsets in the read buffer to the swizzled
+		 * address that it corresponds to.  This is the opposite of
+		 * what Mesa does (calculate offset to be read given the linear
+		 * offset it's looking for).
+		 */
+		for (j = offset; j < offset + len; j += 4) {
+			uint32_t expected_val, found_val;
+			int swizzled_offset;
+			const char *swizzle_str;
+
+			switch (swizzle) {
+			case I915_BIT_6_SWIZZLE_NONE:
+				swizzled_offset = j;
+				swizzle_str = "none";
+				break;
+			case I915_BIT_6_SWIZZLE_9:
+				swizzled_offset = j ^
+					swizzle_bit(9, j);
+				swizzle_str = "bit9";
+				break;
+			case I915_BIT_6_SWIZZLE_9_10:
+				swizzled_offset = j ^
+					swizzle_bit(9, j) ^
+					swizzle_bit(10, j);
+				swizzle_str = "bit9^10";
+				break;
+			case I915_BIT_6_SWIZZLE_9_11:
+				swizzled_offset = j ^
+					swizzle_bit(9, j) ^
+					swizzle_bit(11, j);
+				swizzle_str = "bit9^11";
+				break;
+			case I915_BIT_6_SWIZZLE_9_10_11:
+				swizzled_offset = j ^
+					swizzle_bit(9, j) ^
+					swizzle_bit(10, j) ^
+					swizzle_bit(11, j);
+				swizzle_str = "bit9^10^11";
+				break;
+			default:
+				igt_assert_f(0, "Bad swizzle bits; %d\n",
+					     swizzle);
+			}
+			expected_val = calculate_expected(swizzled_offset);
+			found_val = linear[(j - offset) / 4];
+			igt_assert_f(expected_val == found_val,
+				     "Bad read [%d]: %d instead of %d at 0x%08x "
+				     "for read from 0x%08x to 0x%08x, swizzle=%s\n",
+				     i, found_val, expected_val, j,
+				     offset, offset + len,
+				     swizzle_str);
+		}
+	}
+}
+
+igt_main
+{
+	int fd;
+
+	uint32_t tiling, swizzle;
+	uint32_t handle;
+	uint32_t devid;
+
+	igt_fixture {
+		fd = drm_open_driver(DRIVER_INTEL);
+
+		handle = create_bo(fd);
+		gem_get_tiling(fd, handle, &tiling, &swizzle);
+
+		devid = intel_get_drm_devid(fd);
+	}
+
+	if (IS_GEN2(devid)) {
+		tile_height = 16;
+		tile_width = 128;
+		tile_size = 2048;
+	} else {
+		tile_height = 8;
+		tile_width = 512;
+		tile_size = PAGE_SIZE;
+	}
+
+	igt_subtest("extended")
+		run(fd, handle, swizzle, 100);
+
+	igt_fixture {
+		close(fd);
+	}
+}
diff --git a/tests/gem_tiled_pread_basic.c b/tests/gem_tiled_pread_basic.c
deleted file mode 100644
index 1dfd87c..0000000
--- a/tests/gem_tiled_pread_basic.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * Copyright © 2009 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- *
- * Authors:
- *    Eric Anholt <eric@anholt.net>
- *
- */
-
-/** @file gem_tiled_pread.c
- *
- * This is a test of pread's behavior on tiled objects with respect to the
- * reported swizzling value.
- *
- * The goal is to exercise the slow_bit17_copy path for reading on bit17
- * machines, but will also be useful for catching swizzling value bugs on
- * other systems.
- */
-
-#include "igt.h"
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/ioctl.h>
-#include "drm.h"
-
-
-IGT_TEST_DESCRIPTION("Test pread behavior on tiled objects with respect to the"
-		     " reported swizzling value.");
-
-#define WIDTH 512
-#define HEIGHT 512
-static uint32_t linear[WIDTH * HEIGHT];
-
-#define PAGE_SIZE 4096
-
-static int tile_width;
-static int tile_height;
-static int tile_size;
-
-static uint32_t
-create_bo(int fd)
-{
-	uint32_t handle;
-	uint32_t *data;
-	int i;
-
-	handle = gem_create(fd, sizeof(linear));
-	gem_set_tiling(fd, handle, I915_TILING_X, WIDTH * sizeof(uint32_t));
-
-	/* Fill the BO with dwords starting at start_val */
-	data = gem_mmap__gtt(fd, handle, sizeof(linear),
-			     PROT_READ | PROT_WRITE);
-	for (i = 0; i < WIDTH*HEIGHT; i++)
-		data[i] = i;
-	munmap(data, sizeof(linear));
-
-	return handle;
-}
-
-static int
-swizzle_bit(int bit, int offset)
-{
-	return (offset & (1 << bit)) >> (bit - 6);
-}
-
-/* Translate from a swizzled offset in the tiled buffer to the corresponding
- * value from the original linear buffer.
- */
-static uint32_t
-calculate_expected(int offset)
-{
-	int tile_off = offset & (tile_size - 1);
-	int tile_base = offset & -tile_size;
-	int tile_index = tile_base / tile_size;
-	int tiles_per_row = 4*WIDTH / tile_width;
-
-	/* base x,y values from the tile (page) index. */
-	int base_y = tile_index / tiles_per_row * tile_height;
-	int base_x = tile_index % tiles_per_row * (tile_width/4);
-
-	/* x, y offsets within the tile */
-	int tile_y = tile_off / tile_width;
-	int tile_x = (tile_off % tile_width) / 4;
-
-	igt_debug("%3d, %3d, %3d,%3d\n", base_x, base_y, tile_x, tile_y);
-	return (base_y + tile_y) * WIDTH + base_x + tile_x;
-}
-
-igt_simple_main
-{
-	int fd;
-	int i, iter = 100;
-	uint32_t tiling, swizzle;
-	uint32_t handle;
-	uint32_t devid;
-
-	fd = drm_open_driver(DRIVER_INTEL);
-
-	handle = create_bo(fd);
-	gem_get_tiling(fd, handle, &tiling, &swizzle);
-
-	devid = intel_get_drm_devid(fd);
-
-	if (IS_GEN2(devid)) {
-		tile_height = 16;
-		tile_width = 128;
-		tile_size = 2048;
-	} else {
-		tile_height = 8;
-		tile_width = 512;
-		tile_size = PAGE_SIZE;
-	}
-
-	/* Read a bunch of random subsets of the data and check that they come
-	 * out right.
-	 */
-	for (i = 0; i < iter; i++) {
-		int size = WIDTH * HEIGHT * 4;
-		int offset = (random() % size) & ~3;
-		int len = (random() % size) & ~3;
-		int j;
-
-		if (len == 0)
-			len = 4;
-
-		if (offset + len > size)
-			len = size - offset;
-
-		if (i == 0) {
-			offset = 0;
-			len = size;
-		}
-
-		gem_read(fd, handle, offset, linear, len);
-
-		/* Translate from offsets in the read buffer to the swizzled
-		 * address that it corresponds to.  This is the opposite of
-		 * what Mesa does (calculate offset to be read given the linear
-		 * offset it's looking for).
-		 */
-		for (j = offset; j < offset + len; j += 4) {
-			uint32_t expected_val, found_val;
-			int swizzled_offset;
-			const char *swizzle_str;
-
-			switch (swizzle) {
-			case I915_BIT_6_SWIZZLE_NONE:
-				swizzled_offset = j;
-				swizzle_str = "none";
-				break;
-			case I915_BIT_6_SWIZZLE_9:
-				swizzled_offset = j ^
-					swizzle_bit(9, j);
-				swizzle_str = "bit9";
-				break;
-			case I915_BIT_6_SWIZZLE_9_10:
-				swizzled_offset = j ^
-					swizzle_bit(9, j) ^
-					swizzle_bit(10, j);
-				swizzle_str = "bit9^10";
-				break;
-			case I915_BIT_6_SWIZZLE_9_11:
-				swizzled_offset = j ^
-					swizzle_bit(9, j) ^
-					swizzle_bit(11, j);
-				swizzle_str = "bit9^11";
-				break;
-			case I915_BIT_6_SWIZZLE_9_10_11:
-				swizzled_offset = j ^
-					swizzle_bit(9, j) ^
-					swizzle_bit(10, j) ^
-					swizzle_bit(11, j);
-				swizzle_str = "bit9^10^11";
-				break;
-			default:
-				igt_assert_f(0, "Bad swizzle bits; %d\n",
-					     swizzle);
-			}
-			expected_val = calculate_expected(swizzled_offset);
-			found_val = linear[(j - offset) / 4];
-			igt_assert_f(expected_val == found_val,
-				     "Bad read [%d]: %d instead of %d at 0x%08x "
-				     "for read from 0x%08x to 0x%08x, swizzle=%s\n",
-				     i, found_val, expected_val, j,
-				     offset, offset + len,
-				     swizzle_str);
-		}
-	}
-
-	close(fd);
-}
