tests: Add kms_atomic_interruptible test, v4.

This tests the various parts of atomic that I want to make
interruptible. Running with --debug shows the stats from
__igt_sigiter_continue, which can be used to make sure that
we don't fall over.

The default igt kms helpers use drmIoctl, which is not intercepted
by igt_while_interruptible. Only igt_ioctl is. This means we have
to call the ioctls manually here.

Changes since v1:
- Implement interruptible DPMS checking too.
- Use igt_ioctl + igt_while_interruptible, instead of the signal helper
  shotgun.
Changes since v2:
- Bump whitespace to get rid of the weird double } at same indent.
- Use more newlines in the call to the atomic ioctl.
Changes since v3:
- Fix copyright on year. (Adrinael)
- Use do_ioctl instead of do_or_die(igt_ioctl) (ickle).
- Add test description. (Adrinael)

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Stone <daniels@collabora.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> #v1
Reviewed-by: Petri Latvala <petri.latvala@intel.com>
[mlankhorst: Document sleep values (Adrinael)]

1 files changed, 331 insertions, 0 deletions

diff --git a/tests/kms_atomic_interruptible.c b/tests/kms_atomic_interruptible.c
new file mode 100644
index 00000000..4e06ee4e
--- /dev/null
+++ b/tests/kms_atomic_interruptible.c
@@ -0,0 +1,331 @@
+/*
+ * 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"
+#include "drmtest.h"
+#include "sw_sync.h"
+
+IGT_TEST_DESCRIPTION("Tests that interrupt various atomic ioctls.");
+
+enum plane_test_type
+{
+	test_legacy_modeset,
+	test_atomic_modeset,
+	test_legacy_dpms,
+	test_setplane,
+	test_setcursor,
+	test_pageflip
+};
+
+static int block_plane(igt_display_t *display, igt_output_t *output, enum plane_test_type test_type, igt_plane_t *plane)
+{
+	int timeline = sw_sync_timeline_create();
+
+	igt_fork(child, 1) {
+		/* Ignore the signal helper, we need to block indefinitely on the fence. */
+		signal(SIGCONT, SIG_IGN);
+
+		if (test_type == test_legacy_modeset || test_type == test_atomic_modeset) {
+			igt_output_set_pipe(output, PIPE_NONE);
+			igt_plane_set_fb(plane, NULL);
+		}
+		igt_plane_set_fence_fd(plane, sw_sync_timeline_create_fence(timeline, 1));
+
+		igt_display_commit2(display, COMMIT_ATOMIC);
+	}
+
+	return timeline;
+}
+
+static void unblock(int block)
+{
+	sw_sync_timeline_inc(block, 1);
+	close(block);
+}
+
+static void ev_page_flip(int fd, unsigned seq, unsigned tv_sec, unsigned tv_usec, void *user_data)
+{
+	igt_debug("Retrieved vblank seq: %u on unk\n", seq);
+}
+
+static drmEventContext drm_events = {
+	.version = 2,
+	.page_flip_handler = ev_page_flip
+};
+
+static void run_plane_test(igt_display_t *display, enum pipe pipe, igt_output_t *output,
+			   enum plane_test_type test_type, unsigned plane_type)
+{
+	drmModeModeInfo *mode;
+	igt_fb_t fb, fb2;
+	igt_plane_t *primary, *plane;
+	int block;
+
+	/*
+	 * Make sure we start with everything disabled to force a real modeset.
+	 * igt_display_init only sets sw state, and assumes the first test doesn't care
+	 * about hw state.
+	 */
+	igt_display_commit2(display, COMMIT_ATOMIC);
+
+	igt_output_set_pipe(output, pipe);
+
+	primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
+	plane = igt_output_get_plane_type(output, plane_type);
+	mode = igt_output_get_mode(output);
+
+	igt_create_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
+		      DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, &fb);
+
+	switch (plane_type) {
+	case DRM_PLANE_TYPE_PRIMARY:
+		igt_create_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
+			      DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, &fb2);
+		break;
+	case DRM_PLANE_TYPE_CURSOR:
+		igt_create_fb(display->drm_fd, 64, 64,
+		      DRM_FORMAT_ARGB8888, LOCAL_DRM_FORMAT_MOD_NONE, &fb2);
+		break;
+	}
+
+	if (test_type != test_legacy_modeset && test_type != test_atomic_modeset) {
+		igt_plane_set_fb(primary, &fb);
+		igt_display_commit2(display, COMMIT_ATOMIC);
+	}
+
+	igt_plane_set_fb(plane, &fb2);
+
+	block = block_plane(display, output, test_type, plane);
+
+	/* wait for the block to complete in block_plane */
+	sleep(1);
+
+	igt_fork(child, 1) {
+		signal(SIGCONT, SIG_IGN);
+
+		 /* unblock after 5 seconds to allow the ioctl to complete,
+		  * instead of failing with -EINTR.
+		  */
+		igt_assert(sleep(5) == 0);
+
+		unblock(block);
+	}
+
+	/* run the test */
+	igt_while_interruptible(true) {
+		switch (test_type) {
+			case test_legacy_modeset: {
+				struct drm_mode_crtc crtc = {
+					.set_connectors_ptr = (uint64_t)(uintptr_t)&output->id,
+					.count_connectors = 1,
+					.crtc_id = primary->pipe->crtc_id,
+					.fb_id = fb2.fb_id,
+					.mode_valid = 1,
+					.mode = *(struct drm_mode_modeinfo*)mode,
+				};
+
+				do_ioctl(display->drm_fd, DRM_IOCTL_MODE_SETCRTC, &crtc);
+				break;
+			}
+			case test_atomic_modeset: {
+				uint32_t objs[3] = {
+					plane->pipe->crtc_id,
+					output->id,
+					plane->drm_plane->plane_id
+				};
+				uint32_t count_props[3] = { 2, 1, 6 };
+				uint32_t props[] = {
+					/* crtc: 2 props */
+					plane->pipe->atomic_props_crtc[IGT_CRTC_MODE_ID],
+					plane->pipe->atomic_props_crtc[IGT_CRTC_ACTIVE],
+					/* connector: 1 prop */
+					output->config.atomic_props_connector[IGT_CONNECTOR_CRTC_ID],
+					/* plane: remainder props */
+					plane->atomic_props_plane[IGT_PLANE_CRTC_ID],
+					plane->atomic_props_plane[IGT_PLANE_FB_ID],
+					plane->atomic_props_plane[IGT_PLANE_SRC_W],
+					plane->atomic_props_plane[IGT_PLANE_SRC_H],
+					plane->atomic_props_plane[IGT_PLANE_CRTC_W],
+					plane->atomic_props_plane[IGT_PLANE_CRTC_H]
+				};
+				uint64_t prop_vals[] = {
+					/* crtc */
+					0, /* mode_id, filled in below */
+					true,
+					/* connector */
+					plane->pipe->crtc_id,
+					/* plane */
+					plane->pipe->crtc_id,
+					fb2.fb_id,
+					IGT_FIXED(fb2.width, 0),
+					IGT_FIXED(fb2.height, 0),
+					fb2.width,
+					fb2.height
+				};
+				uint32_t mode_blob;
+
+				struct drm_mode_atomic atm = {
+					.flags = DRM_MODE_ATOMIC_ALLOW_MODESET,
+					.count_objs = 3, /* crtc, connector, plane */
+					.objs_ptr = (uint64_t)(uintptr_t)&objs,
+					.count_props_ptr = (uint64_t)(uintptr_t)&count_props,
+					.props_ptr = (uint64_t)(uintptr_t)&props,
+					.prop_values_ptr = (uint64_t)(uintptr_t)&prop_vals,
+				};
+
+				do_or_die(drmModeCreatePropertyBlob(display->drm_fd, mode, sizeof(*mode), &mode_blob));
+				prop_vals[0] = mode_blob;
+
+				do_ioctl(display->drm_fd, DRM_IOCTL_MODE_ATOMIC, &atm);
+
+				do_or_die(drmModeDestroyPropertyBlob(display->drm_fd, mode_blob));
+				break;
+			}
+			case test_legacy_dpms: {
+				struct drm_mode_connector_set_property prop = {
+					.value = DRM_MODE_DPMS_OFF,
+					.prop_id = output->config.atomic_props_connector[IGT_CONNECTOR_DPMS],
+					.connector_id = output->id,
+				};
+
+				do_ioctl(display->drm_fd, DRM_IOCTL_MODE_SETPROPERTY, &prop);
+				break;
+			}
+			case test_setcursor: {
+				struct drm_mode_cursor cur = {
+					.flags = DRM_MODE_CURSOR_BO,
+					.crtc_id = plane->pipe->crtc_id,
+					.width = fb2.width,
+					.height = fb2.height,
+					.handle = fb2.gem_handle,
+				};
+				do_ioctl(display->drm_fd, DRM_IOCTL_MODE_CURSOR, &cur);
+				break;
+			}
+			case test_setplane: {
+				struct drm_mode_set_plane setplane = {
+					.plane_id = plane->drm_plane->plane_id,
+					.crtc_id = plane->pipe->crtc_id,
+					.fb_id = fb2.fb_id,
+					.crtc_w = fb2.width,
+					.crtc_h = fb2.height,
+					.src_w = IGT_FIXED(fb2.width, 0),
+					.src_h = IGT_FIXED(fb2.height, 0),
+				};
+
+				do_ioctl(display->drm_fd, DRM_IOCTL_MODE_SETPLANE, &setplane);
+				break;
+			}
+			case test_pageflip: {
+				struct drm_mode_crtc_page_flip pageflip = {
+					.crtc_id = plane->pipe->crtc_id,
+					.fb_id = fb2.fb_id,
+					.flags = DRM_MODE_PAGE_FLIP_EVENT,
+				};
+
+				do_ioctl(display->drm_fd, DRM_IOCTL_MODE_PAGE_FLIP, &pageflip);
+
+				drmHandleEvent(display->drm_fd, &drm_events);
+				break;
+			}
+		}
+	}
+
+	igt_waitchildren();
+
+	igt_plane_set_fb(plane, NULL);
+	igt_plane_set_fb(primary, NULL);
+	igt_output_set_pipe(output, PIPE_NONE);
+	igt_display_commit2(display, COMMIT_ATOMIC);
+	igt_remove_fb(display->drm_fd, &fb);
+}
+
+igt_main
+{
+	igt_display_t display;
+	igt_output_t *output;
+	enum pipe pipe;
+
+	igt_skip_on_simulation();
+
+	igt_fixture {
+		display.drm_fd = drm_open_driver_master(DRIVER_ANY);
+
+		kmstest_set_vt_graphics_mode();
+
+		igt_display_init(&display, display.drm_fd);
+
+		igt_require(display.is_atomic);
+
+		igt_display_require_output(&display);
+
+		igt_require_sw_sync();
+	}
+
+	igt_subtest("legacy-setmode")
+		for_each_pipe_with_valid_output(&display, pipe, output) {
+			run_plane_test(&display, pipe, output, test_legacy_modeset, DRM_PLANE_TYPE_PRIMARY);
+			break;
+		}
+
+	igt_subtest("atomic-setmode")
+		for_each_pipe_with_valid_output(&display, pipe, output) {
+			run_plane_test(&display, pipe, output, test_atomic_modeset, DRM_PLANE_TYPE_PRIMARY);
+			break;
+		}
+
+	igt_subtest("legacy-dpms")
+		for_each_pipe_with_valid_output(&display, pipe, output) {
+			run_plane_test(&display, pipe, output, test_legacy_dpms, DRM_PLANE_TYPE_PRIMARY);
+			break;
+		}
+
+	igt_subtest("legacy-pageflip")
+		for_each_pipe_with_valid_output(&display, pipe, output) {
+			run_plane_test(&display, pipe, output, test_pageflip, DRM_PLANE_TYPE_PRIMARY);
+			break;
+		}
+
+	igt_subtest("legacy-cursor")
+		for_each_pipe_with_valid_output(&display, pipe, output) {
+			run_plane_test(&display, pipe, output, test_setcursor, DRM_PLANE_TYPE_CURSOR);
+			break;
+		}
+
+	igt_subtest("universal-setplane-primary")
+		for_each_pipe_with_valid_output(&display, pipe, output) {
+			run_plane_test(&display, pipe, output, test_setplane, DRM_PLANE_TYPE_PRIMARY);
+			break;
+		}
+
+	igt_subtest("universal-setplane-cursor")
+		for_each_pipe_with_valid_output(&display, pipe, output) {
+			run_plane_test(&display, pipe, output, test_setplane, DRM_PLANE_TYPE_CURSOR);
+			break;
+		}
+
+	/* TODO: legacy gamma_set/get, object set/getprop, getcrtc, getconnector */
+	igt_fixture {
+		igt_display_fini(&display);
+	}
+}