[Intel-gfx] [PATCH i-g-t] i-g-t: kms_plane_scaling: Enhanced scaling tests

Juha-Pekka Heikkila juhapekka.heikkila at gmail.com
Thu Nov 23 16:01:34 UTC 2017


On 22.11.2017 10:15, Vidya Srinivas wrote:
> From: Jyoti Yadav <jyoti.r.yadav at intel.com>
> 
> Added subtests to cover below gaps.
> 	1. scaler with pixelformat and tiling.
> 	2. scaler with rotation
> 	3. scaler with multiple planes
> 	4. scaler with multi pipe
> 	5. scaler with clipping/clamping scenario
> 
> Signed-off-by: Jyoti Yadav <jyoti.r.yadav at intel.com>
> ---
>   tests/kms_plane_scaling.c | 480 +++++++++++++++++++++++++++++++++++++++++++++-
>   1 file changed, 476 insertions(+), 4 deletions(-)
> 
> diff --git a/tests/kms_plane_scaling.c b/tests/kms_plane_scaling.c
> index 403df47..2be6acc 100644
> --- a/tests/kms_plane_scaling.c
> +++ b/tests/kms_plane_scaling.c
> @@ -43,10 +43,11 @@ typedef struct {
>   	struct igt_fb fb1;
>   	struct igt_fb fb2;
>   	struct igt_fb fb3;
> +	struct igt_fb fb4;
>   	int fb_id1;
>   	int fb_id2;
>   	int fb_id3;
> -
> +	int fb_id4;
>   	igt_plane_t *plane1;
>   	igt_plane_t *plane2;
>   	igt_plane_t *plane3;
> @@ -54,6 +55,51 @@ typedef struct {
>   } data_t;
>   
>   #define FILE_NAME   "1080p-left.png"
> +#define MIN_SRC_WIDTH 8
> +#define MAX_SRC_WIDTH 4096
> +static uint32_t check_pixel_format(uint32_t pixel_format)
> +{
> +	const uint32_t *igt_formats;
> +	int num_igt_formats;
> +	int i;
> +
> +
> +	igt_get_all_cairo_formats(&igt_formats, &num_igt_formats);
> +	for (i = 0; i < num_igt_formats; i++) {
> +		if (pixel_format == igt_formats[i])
> +			return 0;
> +	}
> +
> +	return -1;
> +}
> +bool is_igt_output_connected(igt_output_t *output)

^^ static

> +{
> +	/* Something went wrong during probe? */
> +	if (!output->config.connector)
> +		return false;
> +
> +	if (output->config.connector->connection == DRM_MODE_CONNECTED)
> +		return true;
> +
> +	return false;
> +}
> +
> +static igt_output_t *get_next_valid_output(igt_display_t *data, int i)
> +{
> +	int j = 0, valid_output = 0;
> +	drmModeModeInfo *mode;
> +	for (j = 0; j < data->n_outputs; j++) {
> +		if (is_igt_output_connected(&data->outputs[j])) {
> +			mode = igt_output_get_mode(&data->outputs[j]);
> +			if (mode->hdisplay != 0 && mode->vdisplay != 0) {
> +				valid_output++;
> +				if (valid_output == i)
> +					return &data->outputs[j];
> +			}
> +		}
> +	}
> +	return NULL;
> +}
>   
>   static void prepare_crtc(data_t *data, igt_output_t *output, enum pipe pipe,
>   			igt_plane_t *plane, drmModeModeInfo *mode, enum igt_commit_style s)
> @@ -298,7 +344,418 @@ static void test_plane_scaling(data_t *d)
>   	igt_require_f(valid_tests, "no valid crtc/connector combinations found\n");
>   }
>   
> -igt_simple_main
> +uint64_t get_tiling(int i)

^^ static

> +{
> +	switch (i) {
> +	case 0:
> +		return LOCAL_DRM_FORMAT_MOD_NONE;
> +		break;
> +	case 1:
> +		return LOCAL_I915_FORMAT_MOD_X_TILED;
> +		break;
> +	case 2:
> +		return LOCAL_I915_FORMAT_MOD_Y_TILED;
> +		break;
> +	case 3:
> +		return LOCAL_I915_FORMAT_MOD_Yf_TILED;
> +		break;
> +	default:
> +		return -1;
> +	}
> +}
> +
> +void loop_plane_scaling(data_t *d, igt_plane_t *plane, uint32_t pixel_format,

^^ static

> +			uint64_t tiling, enum pipe pipe, igt_output_t *output)
> +{
> +	igt_display_t *display = &d->display;
> +	int width, height;
> +	/* create buffer in the range of  min and max source side limit.*/
> +	for (width = MIN_SRC_WIDTH; width <= MAX_SRC_WIDTH; width = width + 500) {
> +		igt_output_set_pipe(output, pipe);
> +		height = width + 10;
> +		d->fb_id1 = igt_create_pattern_fb(display->drm_fd, width, height,
> +						pixel_format, tiling, &d->fb1);
> +		igt_assert(d->fb_id1);
> +		igt_plane_set_fb(plane, &d->fb1);
> +		/* check upscaling */
> +		igt_fb_set_position(&d->fb1, plane, 0, 0);
> +		igt_fb_set_size(&d->fb1, plane, d->fb1.width, d->fb1.height);
> +		igt_plane_set_position(plane, 10, 10);
> +		igt_plane_set_size(plane, width*2, height*2);
> +		igt_display_commit2(display, COMMIT_ATOMIC);

When it says 'check' here, should here be used 'igt_display_try_commit2' 
instead of 'igt_display_commit2'? I was bit confused where the checking 
is really happening. Same goes for all the tests, I see the setup 
asserted but for actual 'check' I didn't find asserts about any results.

> +		igt_plane_set_fb(plane, NULL);
> +		igt_plane_set_position(plane, 0, 0);
> +		if (d->fb_id1) {
> +			igt_remove_fb(d->drm_fd, &d->fb1);
> +			d->fb_id1 = 0;
> +		}
> +	}
> +}
> +void test_scaler_with_pixel_format(data_t *d)

^^ static

> +{
> +	igt_display_t *display = &d->display;
> +	igt_output_t *output;
> +	enum pipe pipe;
> +	igt_plane_t *plane;
> +	int valid_tests = 0;

valid_tests seem not to be used anywhere.

> +	igt_require(d->num_scalers);
> +	for_each_pipe_with_valid_output(display, pipe, output) {
> +		drmModeModeInfo *mode;
> +		igt_output_set_pipe(output, pipe);
> +		mode = igt_output_get_mode(output);
> +		for_each_plane_on_pipe(display, pipe, plane) {
> +			/* check if plane is cursor. */
> +			if (plane->type == DRM_PLANE_TYPE_CURSOR)
> +				continue;
> +			/* run loop for all pixel formats.*/
> +			drmModePlanePtr plane_kms;
> +			plane_kms = plane->drm_plane;
> +			for (int j = 0; j < plane_kms->count_formats; j++) {
> +				/* check plane pixel format is supported in
> +				 * cairo pixel formats.
> +				 */
> +				if (check_pixel_format(plane_kms->formats[j])	== 0) {
> +					/* loop for tiling */
> +					igt_require_fb_modifiers(d->drm_fd);
> +					for (int i = 0; i < 4; i++) {
> +						uint64_t tiling = get_tiling(i);
> +						loop_plane_scaling(d, plane, plane_kms->formats[j],
> +								tiling, pipe, output);
> +					}
> +				}
> +			}
> +		}
> +	}
> +}
> +
> +static igt_rotation_t get_rotation_angle(int i)
> +{
> +	switch (i) {
> +	case 0:
> +		return IGT_ROTATION_0;
> +		break;
> +	case 1:
> +		return IGT_ROTATION_90;
> +		break;
> +	case 2:
> +		return IGT_ROTATION_180;
> +		break;
> +	case 3:
> +		return IGT_ROTATION_270;
> +		break;
> +	default:
> +		return -1;
> +	}
> +}
> +
> +void test_scaler_with_rotation(data_t *d)

^^ static

> +{
> +	igt_display_t *display = &d->display;
> +	igt_output_t *output;
> +	enum pipe pipe;
> +	igt_plane_t *plane;
> +	int valid_tests = 0;

valid_tests seem not to be used anywhere here either.

> +	igt_require(d->num_scalers);
> +	for_each_pipe_with_valid_output(display, pipe, output) {
> +		drmModeModeInfo *mode;
> +		mode = igt_output_get_mode(output);
> +		for_each_plane_on_pipe(display, pipe, plane) {
> +			if (plane->type == DRM_PLANE_TYPE_CURSOR)
> +				continue;
> +			/* run loop for all pixel formats.*/
> +			drmModePlanePtr plane_kms;
> +			plane_kms = plane->drm_plane;
> +			for (int j = 0; j < plane_kms->count_formats; j++) {
> +				/* 90/270 degree rotation is not supported on RGB565 and C8 pixel
> +				 * formats
> +				 */
> +				if (plane_kms->formats[j] == DRM_FORMAT_RGB565 ||
> +					plane_kms->formats[j] == DRM_FORMAT_C8) {
> +					continue;
> +				}
> +				if (check_pixel_format(plane_kms->formats[j]) == 0) {
> +					igt_output_set_pipe(output, pipe);
> +					d->fb_id1 = igt_create_pattern_fb(display->drm_fd,
> +									  mode->hdisplay, mode->vdisplay,
> +									  plane_kms->formats[j],
> +									  LOCAL_I915_FORMAT_MOD_Y_TILED, &d->fb1);
> +					igt_assert(d->fb_id1);
> +					/* check all the supported rotation format*/
> +					for (int i = 0; i < 4; i++) {
> +						igt_plane_set_fb(plane, &d->fb1);
> +						/* check upscaling */
> +						igt_fb_set_position(&d->fb1, plane, 0, 0);
> +						igt_fb_set_size(&d->fb1, plane, 300, 400);
> +						igt_plane_set_position(plane, 0, 0);
> +						igt_plane_set_size(plane, mode->hdisplay-200, mode->vdisplay-200);
> +						igt_plane_set_rotation(plane, get_rotation_angle(i));
> +						igt_display_commit2(display, COMMIT_ATOMIC);
> +						/* check downscaling */
> +						igt_fb_set_position(&d->fb1, plane, 0, 0);
> +						igt_fb_set_size(&d->fb1, plane, 300, 400);
> +						igt_plane_set_position(plane, 0, 0);
> +						igt_plane_set_size(plane, 350, 250); /* downscale by 50 pixels*/
> +						igt_plane_set_rotation(plane, get_rotation_angle(i));
> +						igt_display_commit2(display, COMMIT_ATOMIC);
> +						/* disable Plane*/
> +						igt_plane_set_fb(plane, NULL);
> +						igt_plane_set_position(plane, 0, 0);
> +					}
> +					if (d->fb_id1) {
> +						igt_remove_fb(d->drm_fd, &d->fb1);
> +						d->fb_id1 = 0;
> +					}
> +				}
> +			}
> +		}
> +	}
> +}
> +
> +void test_scaler_with_multiple_planes(data_t *d)

^^ static

> +{
> +	igt_display_t *display = &d->display;
> +	igt_output_t *output;
> +	enum pipe pipe;
> +	int valid_tests = 0;

valid_tests seem not to be used anywhere here too.

> +	igt_require(d->num_scalers);
> +	for_each_pipe_with_valid_output(display, pipe, output) {
> +		/* For Gen 9, Pipe C supports only 1 scaler*/
> +		if (intel_gen(d->devid) == 9 && pipe == PIPE_C)
> +			continue;
> +		drmModeModeInfo *mode;
> +		igt_output_set_pipe(output, pipe);
> +		mode = igt_output_get_mode(output);
> +		/* Create 2 Framebuffers */
> +		d->fb_id2 = igt_create_pattern_fb(d->drm_fd, mode->hdisplay, mode->vdisplay,
> +						DRM_FORMAT_XRGB8888,
> +						LOCAL_I915_FORMAT_MOD_X_TILED, /* tiled */
> +						&d->fb2);
> +		igt_assert(d->fb_id2);
> +
> +		d->fb_id3 = igt_create_pattern_fb(d->drm_fd,
> +						  mode->hdisplay, mode->vdisplay,
> +						  DRM_FORMAT_XRGB8888,
> +						  LOCAL_I915_FORMAT_MOD_Y_TILED, /* tiled */
> +						  &d->fb3);
> +		igt_assert(d->fb_id3);
> +
> +		d->plane1 = igt_output_get_plane(output, 0);
> +		igt_plane_set_fb(d->plane1, &d->fb2);
> +		d->plane2 = igt_output_get_plane(output, 1);
> +		igt_plane_set_fb(d->plane2, &d->fb3);
> +		/* plane upscaling  on 2 planes*/
> +		igt_fb_set_position(&d->fb2, d->plane1, 0, 0);
> +		igt_fb_set_size(&d->fb2, d->plane1, 300, 300);
> +		igt_plane_set_position(d->plane1, 0, 0);
> +		igt_plane_set_size(d->plane1, 400, 400);
> +
> +		igt_fb_set_position(&d->fb3, d->plane2, 0, 0);
> +		igt_fb_set_size(&d->fb3, d->plane2, 400, 400);
> +		igt_plane_set_position(d->plane2, 100, 100);
> +		igt_plane_set_size(d->plane2, 500, 500);
> +
> +		igt_display_commit2(display, COMMIT_ATOMIC);
> +		/* disbale above 2planes*/
> +		igt_plane_set_fb(d->plane1, NULL);
> +		igt_plane_set_position(d->plane1, 0, 0);
> +		igt_plane_set_fb(d->plane2, NULL);
> +		igt_plane_set_position(d->plane2, 0, 0);
> +
> +		/* Switch scaler from above 2 planes to next 2 planes*/
> +		d->plane3 = igt_output_get_plane(output, 2);
> +		igt_plane_set_fb(d->plane3, &d->fb2);
> +		d->plane4 = igt_output_get_plane(output, 3);
> +		igt_plane_set_fb(d->plane4, &d->fb3);
> +
> +		igt_fb_set_position(&d->fb2, d->plane3, 0, 0);
> +		igt_fb_set_size(&d->fb2, d->plane3, 300, 300);
> +		igt_plane_set_position(d->plane3, 0, 0);
> +		igt_plane_set_size(d->plane3, 600, 600);
> +
> +		igt_fb_set_position(&d->fb3, d->plane4, 0, 0);
> +		igt_fb_set_size(&d->fb3, d->plane4, 400, 400);
> +		igt_plane_set_position(d->plane4, 100, 100);
> +		igt_plane_set_size(d->plane4, 700, 700);
> +
> +		igt_display_commit2(display, COMMIT_ATOMIC);
> +		/* disbale above 2planes and remove FB*/
> +		igt_plane_set_fb(d->plane3, NULL);
> +		igt_plane_set_position(d->plane3, 0, 0);
> +		igt_plane_set_fb(d->plane4, NULL);
> +		igt_plane_set_position(d->plane4, 0, 0);
> +		if (d->fb_id2) {
> +			igt_remove_fb(d->drm_fd, &d->fb2);
> +			d->fb_id2 = 0;
> +		}
> +		if (d->fb_id3) {
> +			igt_remove_fb(d->drm_fd, &d->fb3);
> +			d->fb_id3 = 0;
> +		}
> +	}
> +}
> +
> +void test_scaler_with_clipping_clamping_scenario(data_t *d)

^^ static

> +{
> +	igt_display_t *display = &d->display;
> +	igt_output_t *output;
> +	enum pipe pipe;
> +	int valid_tests = 0;
valid_tests here too..

> +	igt_require(d->num_scalers);
> +
> +	for_each_pipe_with_valid_output(display, pipe, output) {
> +
> +		if (intel_gen(d->devid) == 9 && pipe == PIPE_C)
> +			continue;
> +		drmModeModeInfo *mode;
> +		igt_output_set_pipe(output, pipe);
> +		mode = igt_output_get_mode(output);
> +		/* allocate fb2 and fb3 */
> +		d->fb_id2 = igt_create_pattern_fb(d->drm_fd, mode->hdisplay, mode->vdisplay,
> +						DRM_FORMAT_XRGB8888,
> +						LOCAL_I915_FORMAT_MOD_X_TILED, /* tiled */
> +						&d->fb2);
> +		igt_assert(d->fb_id2);
> +
> +		d->fb_id3 = igt_create_pattern_fb(d->drm_fd,
> +						  mode->hdisplay, mode->vdisplay,
> +						  DRM_FORMAT_XRGB8888,
> +						  LOCAL_I915_FORMAT_MOD_Y_TILED, /* tiled */
> +						  &d->fb3);
> +		igt_assert(d->fb_id3);
> +
> +		/* Set up display with plane 1 */
> +		d->plane1 = igt_output_get_plane(output, 0);
> +		igt_plane_set_fb(d->plane1, &d->fb2);
> +		d->plane2 = igt_output_get_plane(output, 1);
> +		igt_plane_set_fb(d->plane2, &d->fb3);
> +
> +		/* plane upscaling  on 2 planes*/
> +		igt_fb_set_position(&d->fb2, d->plane1, 0, 0);
> +		igt_fb_set_size(&d->fb2, d->plane1, 300, 300);
> +		igt_plane_set_position(d->plane1, 100, 400);
> +		/* scaled window size is outside the modeset area.*/
> +		igt_plane_set_size(d->plane1, mode->hdisplay + 200, mode->vdisplay + 200);
> +
> +		igt_fb_set_position(&d->fb3, d->plane2, 0, 0);
> +		igt_fb_set_size(&d->fb3, d->plane2, 400, 400);
> +		igt_plane_set_position(d->plane2, 100, 100);
> +		/* scaled window size is outside the modeset area.*/
> +		igt_plane_set_size(d->plane2, mode->hdisplay + 100, mode->vdisplay + 100);
> +		igt_display_commit2(display, COMMIT_ATOMIC);
> +		/* disbale above 2planes*/
> +		igt_plane_set_fb(d->plane1, NULL);
> +		igt_plane_set_position(d->plane1, 0, 0);
> +		igt_plane_set_fb(d->plane2, NULL);
> +		igt_plane_set_position(d->plane2, 0, 0);
> +		if (d->fb_id2) {
> +			igt_remove_fb(d->drm_fd, &d->fb2);
> +			d->fb_id2 = 0;
> +		}
> +		if (d->fb_id3) {
> +			igt_remove_fb(d->drm_fd, &d->fb3);
> +			d->fb_id3 = 0;
> +		}
> +	}
> +}
> +
> +void test_scaler_with_multi_pipe_plane(data_t *d)

^^ static

> +{
> +	igt_display_t *display = &d->display;
> +	igt_output_t *output1, *output2;
> +	/*check whether 2 connectors are active .*/
> +	igt_skip_on(display->n_outputs < 2);
> +	output1 = get_next_valid_output(display, 1);
> +	output2 = get_next_valid_output(display, 2);
> +	igt_output_set_pipe(output1, 0);
> +	igt_output_set_pipe(output2, 1);
> +	d->plane1 = igt_output_get_plane_type(output1, DRM_PLANE_TYPE_PRIMARY);
> +	d->plane2 = igt_output_get_plane_type(output1, DRM_PLANE_TYPE_OVERLAY);
> +	d->plane3 = igt_output_get_plane_type(output2, DRM_PLANE_TYPE_PRIMARY);
> +	d->plane4 = igt_output_get_plane_type(output2, DRM_PLANE_TYPE_OVERLAY);
> +	drmModeModeInfo *mode1, *mode2;
> +	mode1 = igt_output_get_mode(output1);
> +	mode2 = igt_output_get_mode(output2);
> +	/* allocate fb with mode size */
> +	d->fb_id1 = igt_create_pattern_fb(d->drm_fd, mode1->hdisplay, mode1->vdisplay,
> +					DRM_FORMAT_XRGB8888, LOCAL_I915_FORMAT_MOD_X_TILED, /* tiled */
> +					&d->fb1);
> +	igt_assert(d->fb_id1);
> +
> +	d->fb_id2 = igt_create_pattern_fb(d->drm_fd,
> +					  mode1->hdisplay, mode1->vdisplay,
> +					  DRM_FORMAT_XRGB8888,
> +					  LOCAL_I915_FORMAT_MOD_Y_TILED, /* tiled */
> +					  &d->fb2);
> +	igt_assert(d->fb_id2);
> +	d->fb_id3 = igt_create_pattern_fb(d->drm_fd, mode2->hdisplay, mode2->vdisplay,
> +					DRM_FORMAT_XRGB8888,
> +					LOCAL_I915_FORMAT_MOD_Y_TILED, /* tiled */
> +					&d->fb3);
> +	igt_assert(d->fb_id3);
> +
> +	d->fb_id4 = igt_create_pattern_fb(d->drm_fd,
> +					  mode2->hdisplay, mode2->vdisplay,
> +					  DRM_FORMAT_XRGB8888,
> +					  LOCAL_DRM_FORMAT_MOD_NONE, /* tiled */
> +					  &d->fb4);
> +	igt_assert(d->fb_id4);
> +	/* Set up display with plane 1 */
> +	igt_plane_set_fb(d->plane1, &d->fb1);
> +	igt_plane_set_fb(d->plane2, &d->fb2);
> +	igt_plane_set_fb(d->plane3, &d->fb3);
> +	igt_plane_set_fb(d->plane4, &d->fb4);
> +
> +	/* plane upscaling  on 2 planes*/
> +	igt_fb_set_position(&d->fb1, d->plane1, 0, 0);
> +	igt_fb_set_size(&d->fb1, d->plane1, 300, 300);
> +	igt_plane_set_position(d->plane1, 100, 100);
> +	igt_plane_set_size(d->plane1, mode1->hdisplay - 100, mode1->vdisplay - 50);
> +
> +	igt_fb_set_position(&d->fb2, d->plane2, 100, 100);
> +	igt_fb_set_size(&d->fb2, d->plane2, d->fb2.width - 100, d->fb2.height - 100);
> +	igt_plane_set_position(d->plane2, 100, 100);
> +	/* downscale by 50 pixels*/
> +	igt_plane_set_size(d->plane2, d->fb2.width - 150, d->fb2.height - 150);
> +
> +	igt_fb_set_position(&d->fb3, d->plane3, 0, 0);
> +	igt_fb_set_size(&d->fb3, d->plane3, 400, 400);
> +	igt_plane_set_position(d->plane3, 100, 100);
> +	igt_plane_set_size(d->plane3, mode2->hdisplay - 50, mode2->vdisplay - 50);
> +
> +	igt_fb_set_position(&d->fb4, d->plane4, 100, 100);
> +	igt_fb_set_size(&d->fb2, d->plane4, d->fb4.width - 100, d->fb4.height - 100);
> +	igt_plane_set_position(d->plane4, 100, 100);
> +	/* downscale by 50 pixels*/
> +	igt_plane_set_size(d->plane4, d->fb4.width - 150, d->fb4.height - 150);
> +
> +	igt_display_commit2(display, COMMIT_ATOMIC);
> +	/* disbale above 4 planes*/
> +	igt_plane_set_fb(d->plane1, NULL);
> +	igt_plane_set_position(d->plane1, 0, 0);
> +	igt_plane_set_fb(d->plane2, NULL);
> +	igt_plane_set_position(d->plane2, 0, 0);
> +	igt_plane_set_fb(d->plane3, NULL);
> +	igt_plane_set_position(d->plane3, 0, 0);
> +	igt_plane_set_fb(d->plane4, NULL);
> +	igt_plane_set_position(d->plane4, 0, 0);
> +	if (d->fb_id1) {
> +		igt_remove_fb(d->drm_fd, &d->fb1);
> +		d->fb_id1 = 0;
> +	}
> +	if (d->fb_id2) {
> +		igt_remove_fb(d->drm_fd, &d->fb2);
> +		d->fb_id2 = 0;
> +	}
> +	if (d->fb_id3) {
> +		igt_remove_fb(d->drm_fd, &d->fb3);
> +		d->fb_id3 = 0;
> +	}
> +	if (d->fb_id4) {
> +		igt_remove_fb(d->drm_fd, &d->fb4);
> +		d->fb_id4 = 0;
> +	}
> +}
> +igt_main
>   {
>   	data_t data = {};
>   
> @@ -308,11 +765,26 @@ igt_simple_main
>   	data.drm_fd = drm_open_driver(DRIVER_INTEL);
>   	igt_require_pipe_crc(data.drm_fd);
>   	igt_display_init(&data.display, data.drm_fd);
> +	igt_require(data.display.is_atomic);
>   	data.devid = intel_get_drm_devid(data.drm_fd);
>   
>   	data.num_scalers = intel_gen(data.devid) >= 9 ? 2 : 0;
>   
> -	test_plane_scaling(&data);
> -
> +	//test_plane_scaling(&data);

^^ this comment probably is not needed.

> +	igt_subtest_f("scaler_with_pixel_format") {
> +		test_scaler_with_pixel_format(&data);
> +	}
> +	igt_subtest_f("scaler_with_rotation") {
> +		test_scaler_with_rotation(&data);
> +	}
> +	igt_subtest_f("scaler_with_multiple_planes") {
> +		test_scaler_with_multiple_planes(&data);
> +	}
> +	igt_subtest_f("scaler_with_clipping_clamping") {
> +		test_scaler_with_clipping_clamping_scenario(&data);
> +	}
> +	igt_subtest_f("scaler_with_multi_pipe_plane") {
> +		test_scaler_with_multi_pipe_plane(&data);
> +	}
>   	igt_display_fini(&data.display);
>   }
> 

I think this test need to add checks if commits succeeded in the first 
place. For testing of scalers I did not spot anything that would test 
validity, I mean did the scaler actually produce expected scaled image.

/Juha-Pekka


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