tests: add large object test

The large object test simply tries to allocate a 128M object, pin it, then
pwrite the whole thing.  This should make obvious any leaks on close or
page pointer allocation failures.

tests/Makefile.am

@@ -8,7 +8,8 @@ TESTS = getversion \
 	gem_mmap \
 	gem_pread_after_blit \
 	gem_tiled_pread \
-	gem_tiled_blits
+	gem_tiled_blits \
+	gem_largeobject
 
 EXTRA_PROGRAMS = $(TESTS)
 CLEANFILES = $(EXTRA_PROGRAMS)

tests/gem_largeobject.c

@@ -0,0 +1,97 @@
+/*
+ * Copyright © 2008 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:
+ *    Jesse Barnes <jbarnes@virtuousgeek.org>
+ *
+ */
+
+#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 "drm.h"
+#include "i915_drm.h"
+#include "drmtest.h"
+
+/* Should take 64 pages to store the page pointers on 64 bit */
+#define OBJ_SIZE (128 * 1024 * 1024)
+
+unsigned char data[OBJ_SIZE];
+
+static void
+test_large_object(int fd)
+{
+	struct drm_i915_gem_create create;
+	struct drm_i915_gem_pwrite pwrite;
+	struct drm_i915_gem_pin pin;
+	int ret;
+
+	memset(&create, 0, sizeof(create));
+	memset(&pwrite, 0, sizeof(pwrite));
+	memset(&pin, 0, sizeof(pin));
+
+	create.size = OBJ_SIZE;
+	ret = ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
+	if (ret) {
+		fprintf(stderr, "object creation failed: %s\n",
+			strerror(errno));
+		exit(ret);
+	}
+
+	pin.handle = create.handle;
+	ret = ioctl(fd, DRM_IOCTL_I915_GEM_PIN, &pin);
+	if (ret) {
+		fprintf(stderr, "pin failed: %s\n",
+			strerror(errno));
+		exit(ret);
+	}
+
+	pwrite.handle = create.handle;
+	pwrite.size = OBJ_SIZE;
+	pwrite.data_ptr = (uint64_t)data;
+
+	ret = ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite);
+	if (ret) {
+		fprintf(stderr, "pwrite failed: %s\n",
+			strerror(errno));
+		exit(ret);
+	}
+
+	/* kernel should clean this up for us */
+}
+
+int main(int argc, char **argv)
+{
+	int fd;
+
+	fd = drm_open_any();
+
+	test_large_object(fd);
+
+	return 0;
+}