[PATCH i-g-t v5 5/7] kms_vblank: Switch from using crtc0 statically to explicitly setting mode.

[robert.foss@collabora.com]

From: Robert Foss <robert.foss@collabora.com>

Previously crtc0 was statically used for VBLANK tests, but
that assumption is not valid for the VC4 platform.
Instead we're now explicitly setting the mode.

Also add support for testing all connected connectors during
the same test.

Signed-off-by: Robert Foss <robert.foss@collabora.com>
---
 tests/kms_vblank.c | 161 ++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 136 insertions(+), 25 deletions(-)

diff --git a/tests/kms_vblank.c b/tests/kms_vblank.c
index 40ab6fd..9bc4929 100644
--- a/tests/kms_vblank.c
+++ b/tests/kms_vblank.c
@@ -44,6 +44,14 @@
 
 IGT_TEST_DESCRIPTION("Test speed of WaitVblank.");
 
+typedef struct {
+	igt_display_t display;
+	struct igt_fb primary_fb;
+	igt_output_t *output;
+	enum pipe pipe;
+	uint8_t mode_busy:1;
+} data_t;
+
 static double elapsed(const struct timespec *start,
 		      const struct timespec *end,
 		      int loop)
@@ -51,38 +59,119 @@ static double elapsed(const struct timespec *start,
 	return (1e6*(end->tv_sec - start->tv_sec) + (end->tv_nsec - start->tv_nsec)/1000)/loop;
 }
 
-static bool crtc0_active(int fd)
+static bool prepare_crtc(data_t *data, int fd, igt_output_t *output)
 {
-	union drm_wait_vblank vbl;
+	drmModeModeInfo *mode;
+	igt_display_t *display = &data->display;
+	igt_plane_t *primary;
+
+	/* select the pipe we want to use */
+	igt_output_set_pipe(output, data->pipe);
+	igt_display_commit(display);
+
+	if (!output->valid) {
+		igt_output_set_pipe(output, PIPE_ANY);
+		igt_display_commit(display);
+		return false;
+	}
 
-	memset(&vbl, 0, sizeof(vbl));
-	vbl.request.type = DRM_VBLANK_RELATIVE;
-	return drmIoctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl) == 0;
+	/* create and set the primary plane fb */
+	mode = igt_output_get_mode(output);
+	igt_create_color_fb(fd, mode->hdisplay, mode->vdisplay,
+			    DRM_FORMAT_XRGB8888,
+			    LOCAL_DRM_FORMAT_MOD_NONE,
+			    0.0, 0.0, 0.0,
+			    &data->primary_fb);
+
+	primary = igt_output_get_plane(output, IGT_PLANE_PRIMARY);
+	igt_plane_set_fb(primary, &data->primary_fb);
+
+	igt_display_commit(display);
+
+	igt_wait_for_vblank(fd, data->pipe);
+
+	return true;
+}
+
+static void cleanup_crtc(data_t *data, int fd, igt_output_t *output)
+{
+	igt_display_t *display = &data->display;
+	igt_plane_t *primary;
+
+	igt_remove_fb(fd, &data->primary_fb);
+
+	primary = igt_output_get_plane(output, IGT_PLANE_PRIMARY);
+	igt_plane_set_fb(primary, NULL);
+
+	igt_output_set_pipe(output, PIPE_ANY);
+	igt_display_commit(display);
+}
+
+static void run_test(data_t *data, int fd, void (*testfunc)(data_t *, int))
+{
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+	enum pipe p;
+	unsigned int valid_tests = 0;
+
+	for_each_connected_output(display, output) {
+		for_each_pipe(display, p) {
+			data->pipe = p;
+
+			if (!prepare_crtc(data, fd, output))
+				continue;
+
+			valid_tests++;
+
+			igt_info("Beginning %s on pipe %s, connector %s\n",
+				 igt_subtest_name(),
+				 kmstest_pipe_name(data->pipe),
+				 igt_output_name(output));
+
+			testfunc(data, fd);
+
+			igt_info("\n%s on pipe %s, connector %s: PASSED\n\n",
+				 igt_subtest_name(),
+				 kmstest_pipe_name(data->pipe),
+				 igt_output_name(output));
+
+			/* cleanup what prepare_crtc() has done */
+			cleanup_crtc(data, fd, output);
+		}
+	}
+
+	igt_require_f(valid_tests, "no valid crtc/connector combinations found\n");
 }
 
-static void accuracy(int fd)
+static void accuracy(data_t *data, int fd)
 {
 	union drm_wait_vblank vbl;
 	unsigned long target;
+	uint32_t pipe_id_flag;
 	int n;
 
 	memset(&vbl, 0, sizeof(vbl));
+	pipe_id_flag = kmstest_get_vbl_flag(data->pipe);
 
 	vbl.request.type = DRM_VBLANK_RELATIVE;
+	vbl.request.type |= pipe_id_flag;
 	vbl.request.sequence = 1;
 	do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 
 	target = vbl.reply.sequence + 60;
 	for (n = 0; n < 60; n++) {
 		vbl.request.type = DRM_VBLANK_RELATIVE;
+		vbl.request.type |= pipe_id_flag;
 		vbl.request.sequence = 1;
 		do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 
 		vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
+		vbl.request.type |= pipe_id_flag;
 		vbl.request.sequence = target;
 		do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 	}
 	vbl.request.type = DRM_VBLANK_RELATIVE;
+	vbl.request.type |= pipe_id_flag;
 	vbl.request.sequence = 0;
 	do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 	igt_assert_eq(vbl.reply.sequence, target);
@@ -94,22 +183,26 @@ static void accuracy(int fd)
 	}
 }
 
-static void vblank_query(int fd, bool busy)
+static void vblank_query(data_t *data, int fd)
 {
 	union drm_wait_vblank vbl;
 	struct timespec start, end;
 	unsigned long sq, count = 0;
 	struct drm_event_vblank buf;
+	uint32_t pipe_id_flag;
 
 	memset(&vbl, 0, sizeof(vbl));
+	pipe_id_flag = kmstest_get_vbl_flag(data->pipe);
 
-	if (busy) {
+	if (data->mode_busy) {
 		vbl.request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT;
+		vbl.request.type |= pipe_id_flag;
 		vbl.request.sequence = 72;
 		do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 	}
 
 	vbl.request.type = DRM_VBLANK_RELATIVE;
+	vbl.request.type |= pipe_id_flag;
 	vbl.request.sequence = 0;
 	do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 
@@ -118,6 +211,7 @@ static void vblank_query(int fd, bool busy)
 	clock_gettime(CLOCK_MONOTONIC, &start);
 	do {
 		vbl.request.type = DRM_VBLANK_RELATIVE;
+		vbl.request.type |= pipe_id_flag;
 		vbl.request.sequence = 0;
 		do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 		count++;
@@ -125,28 +219,32 @@ static void vblank_query(int fd, bool busy)
 	clock_gettime(CLOCK_MONOTONIC, &end);
 
 	igt_info("Time to query current counter (%s):		%7.3fµs\n",
-		 busy ? "busy" : "idle", elapsed(&start, &end, count));
+		 data->mode_busy ? "busy" : "idle", elapsed(&start, &end, count));
 
-	if (busy)
+	if (data->mode_busy)
 		igt_assert_eq(read(fd, &buf, sizeof(buf)), sizeof(buf));
 }
 
-static void vblank_wait(int fd, bool busy)
+static void vblank_wait(data_t *data, int fd)
 {
 	union drm_wait_vblank vbl;
 	struct timespec start, end;
 	unsigned long sq, count = 0;
 	struct drm_event_vblank buf;
+	uint32_t pipe_id_flag;
 
 	memset(&vbl, 0, sizeof(vbl));
+	pipe_id_flag = kmstest_get_vbl_flag(data->pipe);
 
-	if (busy) {
+	if (data->mode_busy) {
 		vbl.request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT;
+		vbl.request.type |= pipe_id_flag;
 		vbl.request.sequence = 72;
 		do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 	}
 
 	vbl.request.type = DRM_VBLANK_RELATIVE;
+	vbl.request.type |= pipe_id_flag;
 	vbl.request.sequence = 0;
 	do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 
@@ -155,6 +253,7 @@ static void vblank_wait(int fd, bool busy)
 	clock_gettime(CLOCK_MONOTONIC, &start);
 	do {
 		vbl.request.type = DRM_VBLANK_RELATIVE;
+		vbl.request.type |= pipe_id_flag;
 		vbl.request.sequence = 1;
 		do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
 		count++;
@@ -163,36 +262,48 @@ static void vblank_wait(int fd, bool busy)
 
 	igt_info("Time to wait for %ld/%d vblanks (%s):		%7.3fµs\n",
 		 count, (int)(vbl.reply.sequence - sq),
-		 busy ? "busy" : "idle",
+		 data->mode_busy ? "busy" : "idle",
 		 elapsed(&start, &end, count));
 
-	if (busy)
+	if (data->mode_busy)
 		igt_assert_eq(read(fd, &buf, sizeof(buf)), sizeof(buf));
 }
 
 igt_main
 {
 	int fd;
+	data_t data;
 
 	igt_skip_on_simulation();
 
 	igt_fixture {
 		fd = drm_open_driver(DRIVER_ANY);
-		igt_require(crtc0_active(fd));
+		kmstest_set_vt_graphics_mode();
+		igt_display_init(&data.display, fd);
 	}
 
-	igt_subtest("accuracy")
-		accuracy(fd);
+	igt_subtest("accuracy") {
+		data.mode_busy = 0;
+		run_test(&data, fd, accuracy);
+	}
 
-	igt_subtest("query-idle")
-		vblank_query(fd, false);
+	igt_subtest("query-idle") {
+		data.mode_busy = 0;
+		run_test(&data, fd, vblank_query);
+	}
 
-	igt_subtest("query-busy")
-		vblank_query(fd, true);
+	igt_subtest("query-busy") {
+		data.mode_busy = 1;
+		run_test(&data, fd, vblank_query);
+	}
 
-	igt_subtest("wait-idle")
-		vblank_wait(fd, false);
+	igt_subtest("wait-idle") {
+		data.mode_busy = 0;
+		run_test(&data, fd, vblank_wait);
+	}
 
-	igt_subtest("wait-busy")
-		vblank_wait(fd, true);
+	igt_subtest("wait-busy") {
+		data.mode_busy = 1;
+		run_test(&data, fd, vblank_wait);
+	}
 }
-- 
2.7.4

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