[Intel-gfx] [PATCH i-g-t] tests/kms: Add test for testing rmfb framebuffer removal handling.

[Daniel Vetter]

On Thu, May 05, 2016 at 10:11:27AM +0100, Tvrtko Ursulin wrote:
> 
> Hi,
> 
> On 04/05/16 13:10, Maarten Lankhorst wrote:
> >Add some tests to BAT to ensure rmfb/lastclose handling doesn't break again.
> >
> >The test will set framebuffers on each crtc, and then try rmfb or close.
> >Afterwards it rechecks to make sure the framebuffers are removed.
> >
> >Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> >---
> >diff --git a/tests/Makefile.sources b/tests/Makefile.sources
> >index b73f48d95568..92c84d697ded 100644
> >--- a/tests/Makefile.sources
> >+++ b/tests/Makefile.sources
> >@@ -97,6 +97,7 @@ TESTS_progs_M = \
> >  	kms_plane \
> >  	kms_psr_sink_crc \
> >  	kms_render \
> >+	kms_rmfb_basic \
> >  	kms_rotation_crc \
> >  	kms_setmode \
> >  	kms_universal_plane \
> >diff --git a/tests/kms_rmfb_basic.c b/tests/kms_rmfb_basic.c
> >new file mode 100644
> >index 000000000000..a3fde9f43788
> >--- /dev/null
> >+++ b/tests/kms_rmfb_basic.c
> >@@ -0,0 +1,180 @@
> >+/*
> >+ * Copyright © 2016 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 <errno.h>
> >+#include <stdbool.h>
> >+#include <stdio.h>
> >+#include <string.h>
> >+#include <time.h>
> >+
> >+#ifndef DRM_CAP_CURSOR_WIDTH
> >+#define DRM_CAP_CURSOR_WIDTH 0x8
> >+#endif
> >+#ifndef DRM_CAP_CURSOR_HEIGHT
> >+#define DRM_CAP_CURSOR_HEIGHT 0x9
> >+#endif
> >+
> >+struct rmfb_data {
> >+	int drm_fd;
> >+	igt_display_t display;
> >+};
> >+
> >+/*
> >+ * 1. Set primary plane to a known fb.
> >+ * 2. Make sure getcrtc returns the correct fb id.
> >+ * 3. Call rmfb on the fb.
> >+ * 4. Make sure getcrtc returns 0 fb id.
> >+ *
> >+ * RMFB is supposed to free the framebuffers from any and all planes,
> >+ * so test this and make sure it works.
> >+ */
> >+static bool
> >+test_rmfb(struct rmfb_data *data, igt_output_t *output, enum pipe pipe, bool reopen)
> >+{
> >+	struct igt_fb fb, argb_fb;
> >+	drmModeModeInfo *mode;
> >+	igt_plane_t *plane;
> >+	drmModeCrtc *crtc;
> >+	uint64_t cursor_width, cursor_height;
> >+
> >+	igt_output_set_pipe(output, pipe);
> >+	igt_display_commit(&data->display);
> >+
> >+	if (!output->valid) {
> >+		igt_output_set_pipe(output, PIPE_ANY);
> >+		return false;
> >+	}
> >+
> >+	mode = igt_output_get_mode(output);
> >+
> >+	igt_create_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
> >+		      DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, &fb);
> >+
> >+	igt_create_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
> >+		      DRM_FORMAT_ARGB8888, LOCAL_DRM_FORMAT_MOD_NONE, &argb_fb);
> >+
> >+	do_or_die(drmGetCap(data->drm_fd, DRM_CAP_CURSOR_WIDTH, &cursor_width));
> >+	if (cursor_width > mode->hdisplay)
> >+		cursor_width = mode->hdisplay;
> >+
> >+	do_or_die(drmGetCap(data->drm_fd, DRM_CAP_CURSOR_HEIGHT, &cursor_height));
> >+	if (cursor_height > mode->vdisplay)
> >+		cursor_height = mode->vdisplay;
> >+
> >+	/*
> >+	 * Make sure these buffers are suited for display use
> >+	 * because most of the modeset operations must be fast
> >+	 * later on.
> >+	 */
> >+	for_each_plane_on_pipe(&data->display, pipe, plane) {
> >+		if (plane->is_cursor) {
> >+			igt_plane_set_fb(plane, &argb_fb);
> >+			igt_fb_set_size(&argb_fb, plane, cursor_width, cursor_height);
> >+			igt_plane_set_size(plane, cursor_width, cursor_height);
> >+		} else {
> >+			igt_plane_set_fb(plane, &fb);
> >+		}
> >+	}
> >+
> >+	igt_display_commit2(&data->display, data->display.is_atomic ? COMMIT_ATOMIC : COMMIT_UNIVERSAL);
> >+
> >+	crtc = drmModeGetCrtc(data->drm_fd, output->config.crtc->crtc_id);
> >+
> >+	igt_assert_eq(crtc->buffer_id, fb.fb_id);
> >+
> >+	drmModeFreeCrtc(crtc);
> >+
> >+	if (reopen) {
> >+		close(data->drm_fd);
> >+
> >+		data->drm_fd = drm_open_driver_master(DRIVER_ANY);
> >+		drmSetClientCap(data->drm_fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
> >+		drmSetClientCap(data->drm_fd, DRM_CLIENT_CAP_ATOMIC, 1);
> >+	} else {
> >+		igt_remove_fb(data->drm_fd, &fb);
> >+		igt_remove_fb(data->drm_fd, &argb_fb);
> >+	}
> >+
> >+	crtc = drmModeGetCrtc(data->drm_fd, output->config.crtc->crtc_id);
> >+
> >+	igt_assert_eq(crtc->buffer_id, 0);
> >+
> >+	drmModeFreeCrtc(crtc);
> >+
> >+	for_each_plane_on_pipe(&data->display, pipe, plane) {
> >+		drmModePlanePtr planeres = drmModeGetPlane(data->drm_fd, plane->drm_plane->plane_id);
> >+
> >+		igt_assert_eq(planeres->fb_id, 0);
> >+
> >+		drmModeFreePlane(planeres);
> >+	}
> >+
> >+	igt_output_set_pipe(output, PIPE_ANY);
> >+	igt_display_commit2(&data->display, data->display.is_atomic ? COMMIT_ATOMIC : COMMIT_UNIVERSAL);
> >+
> >+	return true;
> >+}
> >+
> >+static void
> >+run_rmfb_test(struct rmfb_data *data, bool reopen)
> >+{
> >+	igt_output_t *output;
> >+	int valid_tests = 0;
> >+	enum pipe pipe;
> >+
> >+	for_each_connected_output(&data->display, output) {
> >+		for_each_pipe(&data->display, pipe) {
> >+			if (test_rmfb(data, output, pipe, reopen))
> >+				valid_tests++;
> 
> This test seems like a good candidate to do only one pipe per crtc, since it
> would be BAT.
> 
> Alternatively, have basic-rmfb-ioctl and rmfb-ioctl subtests (and close)
> where the former does one (first valid?), and the other do all combos. This
> is something I proposed for other modesetting tests recently as well.

Tbh not sure this should even be BAT. It's a corner-case in handling leaks
(or not), that doesn't feel like BAT material. Especially given that it
needs at least 1 modeset or two, so won't be fast.

We need to stop cramming everything into BAT simply because we don't have
any other CI. Because last time we've tried to run everything it also
didn't work ...

Also, BAT is over time, that pretty much means an embargo on new BAT
tests.

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch