[igt-dev] [PATCH i-g-t 3/3] tests/v3d_create_bo: Create test for V3D's Create BO IOCTL

[Maíra Canal]

Add three igt_subtests for the DRM_IOCTL_V3D_CREATE_BO, which tests the
creation of a zeroed BO and a 4096 bytes BO, and tests if the BO is
properly cleaned.

Signed-off-by: Maíra Canal <mcanal at igalia.com>
---
 tests/meson.build         |  1 +
 tests/v3d_ci/v3d.testlist |  3 ++
 tests/v3d_create_bo.c     | 88 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 92 insertions(+)
 create mode 100644 tests/v3d_create_bo.c

diff --git a/tests/meson.build b/tests/meson.build
index eb38c17f..a1c358b9 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -80,6 +80,7 @@ test_progs = [
 	'syncobj_timeline',
 	'template',
 	'tools_test',
+	'v3d_create_bo',
 	'v3d_get_bo_offset',
 	'v3d_get_param',
 	'v3d_mmap',
diff --git a/tests/v3d_ci/v3d.testlist b/tests/v3d_ci/v3d.testlist
index b55e8e57..f4355285 100644
--- a/tests/v3d_ci/v3d.testlist
+++ b/tests/v3d_ci/v3d.testlist
@@ -1,3 +1,6 @@
+igt at v3d_create_bo@create-bo-0
+igt at v3d_create_bo@create-bo-4096
+igt at v3d_create_bo@create-bo-zeroed
 igt at v3d_get_bo_offset@create-get-offsets
 igt at v3d_get_bo_offset@get-bad-handle
 igt at v3d_get_param@base-params
diff --git a/tests/v3d_create_bo.c b/tests/v3d_create_bo.c
new file mode 100644
index 00000000..bb8b91d0
--- /dev/null
+++ b/tests/v3d_create_bo.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright © 2022 Igalia S.L.
+ *
+ * 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:
+ * 	Maíra Canal <mcanal at igalia.com>
+ */
+
+#include "igt.h"
+#include "igt_v3d.h"
+#include <unistd.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/ioctl.h>
+
+igt_main
+{
+	int fd;
+
+	igt_fixture {
+		fd = drm_open_driver(DRIVER_V3D);
+	}
+
+	igt_subtest("create-bo-0") {
+		struct drm_v3d_create_bo create = {
+			.size = 0,
+		};
+		do_ioctl_err(fd, DRM_IOCTL_V3D_CREATE_BO, &create, EINVAL);
+	}
+
+	igt_subtest("create-bo-4096") {
+		struct v3d_bo *bo = igt_v3d_create_bo(fd, PAGE_SIZE);
+		igt_v3d_free_bo(fd, bo);
+	}
+
+	igt_subtest("create-bo-zeroed") {
+		int fd2 = drm_open_driver(DRIVER_V3D);
+		struct v3d_bo *bo;
+		/* A size different from any used in our other tests, to try
+		 * to convince it to land as the only one of its size in the
+		 * kernel BO cache
+		 */
+		size_t size = 3 * PAGE_SIZE, i;
+
+		/* Make a BO and free it on our main fd. */
+		bo = igt_v3d_create_bo(fd, size);
+		bo->map = igt_v3d_mmap_bo(fd, bo->handle, size, PROT_READ | PROT_WRITE);
+		memset(bo->map, 0xd0, size);
+		igt_v3d_free_bo(fd, bo);
+
+		/* Now, allocate a BO on the other fd and make sure it doesn't
+		 * have the old contents.
+		 */
+		bo = igt_v3d_create_bo(fd2, size);
+		bo->map = igt_v3d_mmap_bo(fd2, bo->handle, size, PROT_READ | PROT_WRITE);
+		for (i = 0; i < size / 4; i++)
+			igt_assert_eq_u32(((uint32_t *)bo->map)[i], 0x0);
+		igt_v3d_free_bo(fd2, bo);
+
+		close(fd2);
+	}
+
+	igt_fixture
+		close(fd);
+}
-- 
2.37.3