[PATCH i-g-t v3 02/10] tests/imagination: Add GEM mmap tests

[Robert Mazur <robert.mazur@imgtec.com>]

From: Matt Coster <matt.coster@imgtec.com>

Add subtests for mmap operations on GEM buffer objects.

Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Signed-off-by: Robert Mazur <robert.mazur@imgtec.com>
---
 tests/imagination/pvr_gem.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/tests/imagination/pvr_gem.c b/tests/imagination/pvr_gem.c
index 273f4d56f..74bfd4eee 100644
--- a/tests/imagination/pvr_gem.c
+++ b/tests/imagination/pvr_gem.c
@@ -59,6 +59,50 @@ int igt_main()
 		do_ioctl_err(fd, DRM_IOCTL_PVR_CREATE_BO, &arg, EINVAL);
 	}
 
+	igt_describe("Test valid buffer object mapping");
+	igt_subtest("mmap-bo-4096")
+	{
+		size_t size = 4096;
+		uint32_t handle = igt_pvr_ioctl_create_bo(fd, &size);
+
+		off_t offset = igt_pvr_ioctl_get_bo_mmap_offset(fd, handle);
+
+		char *mapped = mmap(NULL, size, PROT_WRITE, MAP_SHARED,
+				    fd, offset);
+		igt_assert(mapped != MAP_FAILED);
+
+		/* Test writing to beginning and end of mapped range. */
+		mapped[0] = 0xff;
+		mapped[size - 1] = 0xff;
+
+		munmap(mapped, size);
+		gem_close(fd, handle);
+	}
+
+	igt_describe("Test buffer object mapping with bad handle");
+	igt_subtest("mmap-bo-bad-handle")
+	{
+		struct drm_pvr_ioctl_get_bo_mmap_offset_args arg = {
+			.handle = 0xbad6bad6,
+		};
+
+		do_ioctl_err(fd, DRM_IOCTL_PVR_GET_BO_MMAP_OFFSET, &arg, ENOENT);
+	}
+
+	igt_describe("Test buffer object mapping with bad padding");
+	igt_subtest("mmap-bo-bad-padding")
+	{
+		size_t size = 4096;
+		uint32_t handle = igt_pvr_ioctl_create_bo(fd, &size);
+
+		struct drm_pvr_ioctl_get_bo_mmap_offset_args arg = {
+			.handle = handle,
+			._padding_4 = 0xbad6bad6,
+		};
+
+		do_ioctl_err(fd, DRM_IOCTL_PVR_GET_BO_MMAP_OFFSET, &arg, EINVAL);
+	}
+
 	igt_fixture()
 	{
 		drm_close_driver(fd);

-- 
2.43.0