tests: add gem_set_tiling_vs_pwrite

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

tests/.gitignore

@@ -38,6 +38,7 @@ gem_ringfill
 gem_ring_sync_loop
 gem_set_tiling_vs_blt
 gem_set_tiling_vs_gtt
+gem_set_tiling_vs_pwrite
 gem_storedw_batches_loop
 gem_storedw_loop_blt
 gem_storedw_loop_bsd

tests/Makefile.am

@@ -25,6 +25,7 @@ TESTS_progs = \
 	gem_pread_after_blit \
 	gem_set_tiling_vs_blt \
 	gem_set_tiling_vs_gtt \
+	gem_set_tiling_vs_pwrite \
 	gem_tiled_pread \
 	gem_tiled_pread_pwrite \
 	gem_tiled_partial_pwrite_pread \

tests/gem_set_tiling_vs_pwrite.c

@@ -0,0 +1,101 @@
+/*
+ * Copyright © 2012 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:
+ *    Daniel Vetter <daniel.vetter@ffwll.ch>
+ *
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include "drm.h"
+#include "i915_drm.h"
+#include "drmtest.h"
+#include "intel_gpu_tools.h"
+
+#define OBJECT_SIZE (1024*1024)
+#define TEST_STRIDE (1024*4)
+
+/**
+ * Testcase: Check set_tiling vs pwrite coherency
+ */
+
+int main(int argc, char **argv)
+{
+	int fd;
+	uint32_t *ptr;
+	uint32_t data[OBJECT_SIZE/4];
+	int i;
+	uint32_t handle;
+
+	fd = drm_open_any();
+
+	for (i = 0; i < OBJECT_SIZE/4; i++)
+		data[i] = i;
+
+	handle = gem_create(fd, OBJECT_SIZE);
+	ptr = gem_mmap(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
+	assert(ptr);
+
+	gem_set_tiling(fd, handle, I915_TILING_X, TEST_STRIDE);
+
+#if 0
+	/* touch it */
+	gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
+	*ptr = 0xdeadbeef;
+
+	printf("testing pwrite on tiled buffer\n");
+	gem_write(fd, handle, 0, data, OBJECT_SIZE);
+	memset(data, 0, OBJECT_SIZE);
+	gem_read(fd, handle, 0, data, OBJECT_SIZE);
+	for (i = 0; i < OBJECT_SIZE/4; i++)
+		assert(i == data[i]);
+#endif
+
+	/* touch it before changing the tiling, so that the fence sticks around */
+	gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
+	*ptr = 0xdeadbeef;
+
+	gem_set_tiling(fd, handle, I915_TILING_NONE, 0);
+
+	printf("testing pwrite on untiled, but still fenced buffer\n");
+	gem_write(fd, handle, 0, data, OBJECT_SIZE);
+	memset(data, 0, OBJECT_SIZE);
+	gem_read(fd, handle, 0, data, OBJECT_SIZE);
+	for (i = 0; i < OBJECT_SIZE/4; i++)
+		assert(i == data[i]);
+
+	munmap(ptr, OBJECT_SIZE);
+
+	close(fd);
+
+	return 0;
+}