[igt-dev] [PATCH i-g-t v3 1/3] tests/i915/gem_mmap_gtt: Add invalid parameters test

[Antonio Argenziano <antonio.argenziano@intel.com>]

Add a test for an invalid handle being passed to the IOCTL.

v2:
	- Expand test space. (Chris)

v3:
	- Add local IOCTL wrapper. (Chris)

Signed-off-by: Antonio Argenziano <antonio.argenziano@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
---
 tests/i915/gem_mmap_gtt.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/tests/i915/gem_mmap_gtt.c b/tests/i915/gem_mmap_gtt.c
index f6fbbe19..237308a2 100644
--- a/tests/i915/gem_mmap_gtt.c
+++ b/tests/i915/gem_mmap_gtt.c
@@ -821,6 +821,23 @@ run_without_prefault(int fd,
 	igt_enable_prefault();
 }
 
+static int
+err_gem_mmap_gtt(int i915, uint32_t handle, uint64_t size, uint64_t offset)
+{
+	struct drm_i915_gem_mmap arg = {
+				.handle = handle,
+				.size = size,
+				.offset = offset
+	};
+	int err = 0;
+
+	if(ioctl(i915, DRM_IOCTL_I915_GEM_MMAP_GTT, &arg))
+		err = -errno;
+
+	errno = 0;
+	return err;
+}
+
 int fd;
 
 igt_main
@@ -831,6 +848,25 @@ igt_main
 	igt_fixture
 		fd = drm_open_driver(DRIVER_INTEL);
 
+	igt_subtest("bad-object") {
+		int ret;
+
+		uint32_t real_handle = gem_create(fd, 4096);
+		uint32_t handles[20];
+		int i = 0;
+
+		handles[i++] = 0xdeadbeef;
+		for(int bit = 0; bit < 16; bit++)
+			handles[i++] = real_handle | (1 << (bit + 16));
+		handles[i] = real_handle + 1;
+
+		for (; i < 0; i--) {
+			igt_debug("Trying to mmap_gtt invalid handle: %x.\n", handles[i]);
+			ret = err_gem_mmap_gtt(fd, handles[i], 0, 4096);
+			igt_assert_eq(ret, -ENOENT);
+		}
+	}
+
 	igt_subtest("basic")
 		test_access(fd);
 	igt_subtest("basic-short")
-- 
2.20.1

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