When doing a full atomic modeset, kernel should fail if the flag
DRM_MODE_ATOMIC_ALLOW_MODESET is not set. Let's add this test as part of
Intel-GPU-Tools. The test procedure is the following:
- Try to do atomic commit without DRM_MODE_ATOMIC_ALLOW_MODESET flag.
Kernel should reject this request.
- Do full modeset
- Enable DRM_MODE_ATOMIC_ALLOW_MODESET and try to do atmic commit.
Kernel should now allow atomic modeset.
For: VIZ-6955
Signed-off-by: Mika Kahola <mika.kahola@xxxxxxxxx>
---
tests/Makefile.sources | 1 +
tests/kms_atomic_allow_modeset.c | 133 +++++++++++++++++++++++++++++++++++++++
2 files changed, 134 insertions(+)
create mode 100644 tests/kms_atomic_allow_modeset.c
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 45c21a0..d3ee629 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -94,6 +94,7 @@ TESTS_progs_M = \
kms_addfb_basic \
kms_atomic \
kms_atomic_transition \
+ kms_atomic_allow_modeset \
kms_busy \
kms_ccs \
kms_chv_cursor_fail \
diff --git a/tests/kms_atomic_allow_modeset.c b/tests/kms_atomic_allow_modeset.c
new file mode 100644
index 0000000..b4d8c16
--- /dev/null
+++ b/tests/kms_atomic_allow_modeset.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright © 2017 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.
+ *
+ */
+
+#include "igt.h"
+
+IGT_TEST_DESCRIPTION("Test that kernel rejects atomic modeset if ALLOW_MODESET flag is not set");
+
+static void
+test_init(igt_display_t *display, struct igt_fb *fb, igt_output_t *output)
+{
+ drmModeModeInfo *mode;
+ igt_plane_t *primary;
+ int id;
+
+ mode = igt_output_get_mode(output);
+
+ id = igt_create_pattern_fb(display->drm_fd,
+ mode->hdisplay, mode->vdisplay,
+ DRM_FORMAT_XRGB8888,
+ LOCAL_I915_FORMAT_MOD_X_TILED,
+ fb);
+ igt_assert(id);
+
+ primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
+ igt_plane_set_fb(primary, fb);
+}
+
+static void
+test_finish(igt_display_t *display, struct igt_fb *fb, igt_output_t *output)
+{
+ igt_plane_t *primary;
+
+ primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
+
+ igt_remove_fb(display->drm_fd, fb);
+
+ igt_plane_set_fb(primary, NULL);
+ igt_output_set_pipe(output, PIPE_ANY);
+
+ igt_display_commit2(display, COMMIT_ATOMIC);
+}
+
+static void
+test_allow_modeset(igt_display_t *display, enum pipe pipe, igt_output_t *output)
+{
+ struct igt_fb fb;
+ int flags = DRM_MODE_ATOMIC_NONBLOCK;
+ int ret;
+
+ igt_output_set_pipe(output, pipe);
+
+ test_init(display, &fb, output);
+
+ /*
+ * Try to do atomic commit without DRM_MODE_ATOMIC_ALLOW_MODESET flag.
+ * Kernel should reject this request.
+ */
+ ret = igt_display_try_commit_atomic(display, flags, NULL);
+ igt_assert_eq(ret, -EINVAL);
+
+ /* do modeset */
+ igt_output_set_pipe(output, pipe);
+
+ /*
+ * Try to do atomic commit with DRM_MODE_ATOMIC_ALLOW_MODESET flag set.
+ * The kernel should now accept this request.
+ */
+ flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
+ ret = igt_display_try_commit_atomic(display, flags, NULL);
+ igt_assert_eq(ret, 0);
+
+ test_finish(display, &fb, output);
+}
+
+igt_simple_main
+{
+ igt_output_t *output;
+ igt_display_t display;
+ drmModeResPtr res;
+ enum pipe pipe;
+
+ igt_skip_on_simulation();
+
+ igt_fixture {
+ int valid_outputs = 0;
+
+ display.drm_fd = drm_open_driver_master(DRIVER_ANY);
+ igt_enable_connectors();
+ kmstest_set_vt_graphics_mode();
+ igt_display_init(&display, display.drm_fd);
+ igt_require(display.is_atomic);
+
+ for_each_pipe_with_valid_output(&display, pipe, output)
+ valid_outputs++;
+
+ igt_require_f(valid_outputs, "no valid crtc/connector combinations found\n");
+ }
+
+ res = drmModeGetResources(display.drm_fd);
+ kmstest_unset_all_crtcs(display.drm_fd, res);
+
+ for_each_pipe_with_valid_output(&display, pipe, output)
+ test_allow_modeset(&display, pipe, output);
+
+ igt_fixture {
+ igt_display_fini(&display);
+ igt_reset_connectors();
+ drmModeFreeResources(res);
+ }
+
+ igt_exit();
+}
--
2.7.4
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