[PATCH i-g-t 2/2] tests/intel/kms_big_joiner: revamp kms_big_joiner

Modem, Bhanuprakash bhanuprakash.modem at intel.com
Wed Mar 6 11:07:57 UTC 2024


On 06-03-2024 04:12 pm, Lisovskiy, Stanislav wrote:
> On Wed, Mar 06, 2024 at 12:33:47PM +0200, Lisovskiy, Stanislav wrote:
>> On Wed, Mar 06, 2024 at 03:41:26PM +0530, Joshi, Kunal1 wrote:
>>> Hello Stan,
>>>
>>> On 3/6/2024 3:23 PM, Lisovskiy, Stanislav wrote:
>>>> On Wed, Mar 06, 2024 at 10:55:09AM +0530, Kunal Joshi wrote:
>>>>> big joiner outputs are statically assigned to pipe,
>>>>> rewrite to assign dynamically
>>>>>
>>>>> v2: Don't change license (Bhanu)
>>>>>       Add documentation for generate_combinations (Bhanu)
>>>>>       Print the pipe name (Bhanu)
>>>>>       Remove unwanted commit (Bhanu)
>>>>>       Move combine output logic to igt_fixture (Bhanu)
>>>>>       split revamp and force joiner (Bhanu)
>>>>>
>>>>> Cc: Karthik B S<karthik.b.s at intel.com>
>>>>> Cc: Bhanuprakash Modem<bhanuprakash.modem at intel.com>
>>>>> Signed-off-by: Kunal Joshi<kunal1.joshi at intel.com>
>>>>> ---
>>>>>    tests/intel/kms_big_joiner.c | 391 +++++++++++++++++------------------
>>>>>    1 file changed, 187 insertions(+), 204 deletions(-)
>>>>>
>>>>> diff --git a/tests/intel/kms_big_joiner.c b/tests/intel/kms_big_joiner.c
>>>>> index 28678b958..ba4097d8b 100644
>>>>> --- a/tests/intel/kms_big_joiner.c
>>>>> +++ b/tests/intel/kms_big_joiner.c
>>>>> @@ -43,16 +43,19 @@
>>>>>     *
>>>>>     * SUBTEST: basic
>>>>>     * Description: Verify the basic modeset on big joiner mode on all pipes
>>>>> - *
>>>>> - * SUBTEST: 2x-modeset
>>>>> - * Description: Verify simultaneous modeset on 2 big joiner outputs
>>>>>     */
>>>>> -
>>>>>    IGT_TEST_DESCRIPTION("Test big joiner");
>>>>> -struct bigjoiner_output {
>>>>> -	uint32_t output_id;
>>>>> -	drmModeModeInfo mode;
>>>>> +#define MAX_OUTPUTS 256
>>>>> +#define MAX_COMBINATIONS 1000
>>>>> +#define INVALID_TEST_OUTPUT 2
>>>>> +typedef struct {
>>>>> +    int combination[MAX_OUTPUTS];
>>>>> +} Combination;
>>>>> +
>>>>> +enum joiner_type {
>>>>> +	BIG_JOINER = 1 << 1,
>>>>> +	INVALID_JOINER = -1,
>>>>>    };
>>>>>    typedef struct {
>>>>> @@ -60,273 +63,253 @@ typedef struct {
>>>>>    	igt_display_t display;
>>>>>    	struct igt_fb fb;
>>>>>    	int n_pipes;
>>>>> -	enum pipe pipe1;
>>>>> -	enum pipe pipe2;
>>>>> -	struct bigjoiner_output output[2];
>>>>> +	uint64_t big_joiner_outputs[IGT_MAX_PIPES];
>>>>> +	uint64_t non_big_joiner_outputs[IGT_MAX_PIPES];
>>>>> +	uint64_t combined_outputs[IGT_MAX_PIPES];
>>>>> +	int big_joiner_output_count;
>>>>> +	int non_big_joiner_output_count;
>>>>> +	int combined_output_count;
>>>>> +	int output_count;
>>>>> +	enum pipe pipe_seq[IGT_MAX_PIPES];
>>>>>    } data_t;
>>>>>    static int max_dotclock;
>>>>> -static void test_invalid_modeset(data_t *data)
>>>>> +/*
>>>>> + * The generate_combinations function generates combinations of pipe allocations
>>>>> + * for a given number of outputs
>>>>> + *
>>>>> + * @output_count: Number of outputs to allocate pipes for.
>>>>> + * @pipe_count: Total number of available pipes.
>>>>> + * @pipes_per_output: Number of pipes to be allocated for a single output.
>>>>> + * @combinations: Array to store generated combinations.
>>>>> + * @num_combinations: Pointer to a variable that stores the number of generated combinations.
>>>>> + *
>>>>> + * Example (output_count=2, pipe_count=4, pipes_per_output=2):
>>>>> + * Combination 1: 0 2
>>>>> + * Combination 2: 1 3
>>>> I think this might be a bit overcomplicated - just for your information, we can't deliberately
>>>> choose which pipes can be used for bigjoiner. On some platforms even only certain pipes, can be
>>>> used for bigjoiner.
>>>> Moreover the way how driver decides, which pipes are going to be used for bigjoiner is basically
>>>> this code in intel_dp.c:
>>>>
>>>> if (intel_dp_need_bigjoiner(intel_dp, adjusted_mode->crtc_hdisplay,
>>>> 			    adjusted_mode->crtc_clock))
>>>>            pipe_config->bigjoiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
>>>>
>>>> Means if you try to do a modeset with resolution > 5K or exceed max_dot_clock on crtc->pipe,
>>>> then _always_ pipe + 1, going to be used for bigjoiner.
>>>>
>>>>
>>>> Stan
>>>>
>>> Thanks for the inputs,
>>> Goal here is to try various combination possible,
>>> Suppose a platform supports 5 pipes(A-E) and we have 1 bigjoiner output
>>> (DP-1) then we want to try
>>> DP-1 on PIPE_A
>>> DP-1 on PIPE_B
>>> DP-1 on PIPE_C
>>> DP-1 on PIPE_D
>>>
>>> Suppose a platform supports 5 pipes(A-E) and we have 2 bigjoiner output
>>> (DP-1, DP-2) then we want to try
>>> DP-1 on PIPE_A and DP-2 on PIPE_C
>>> DP-1 on PIPE_B and DP-2 on PIPE_D And so on, Going forward this will be
>>> useful we introduce any feature which can allow having more pipes per output
>>> also.
>>
>> That won't work. BSpec and current driver code allows to use only _adjacent_ pipes.
>> I.e if you modeset PIPE_A with 5K resolution, then bigjoiner_pipes mask would be
>> PIPE_A | PIPE_B. If you modeset PIPE_B with 5K resolution it will take PIPE_C as a
>> slave and so on.
>> So for instance of you had DP-1 assigned to PIPE_A and DP-2 assigned to PIPE_C by test,
>> _driver_ will still reassign PIPE_B to DP-2, in order for bigjoiner to work.
> 
> Meant "will still reassign PIPE_B to DP-1" to make > 5K resolution possible on DP-1.
> So basically anyway we can't have all possible combinations, but only those which are
> allowed by spec.
> 
> In this case it can be either
> DP-1 bigjoiner on PIPE A|PIPE B
> DP-2 bigjoiner on PIPE C|PIPE D
> or vice versa
> DP-1 bigjoiner on PIPE C|PIPE D
> DP-2 bigjoiner on PIPE A|PIPE B

Also, we need to takecare of fused pipes.
Example: If PIPE B is fusedoff, then we can't use PIPE A for bigjoiner.

- Bhanu

> 
> Stan
> 
> 
>> That logic is implemented in intel_dp.c, as I mentioned above.
>> Also you can check the BSpec Bigjoiner programming description.
>>
>> Stan
>>
>>
>>>
>>>>
>>>>> +*/
>>>>> +static void generate_combinations(int output_count, int pipe_count,
>>>>> +				  int pipes_per_output,
>>>>> +				  Combination combinations[MAX_COMBINATIONS],
>>>>> +				  uint64_t *num_combinations)
>>>>>    {
>>>>> -	igt_output_t *output;
>>>>> -	igt_display_t *display = &data->display;
>>>>> -	int ret;
>>>>> +	int i, index;
>>>>> +	int current_combination[MAX_OUTPUTS];
>>>>> -	igt_info("Bigjoiner test on ");
>>>>> -	for_each_connected_output(display, output){
>>>>> -		enum pipe p = output->pending_pipe;
>>>>> -		drmModeModeInfo *mode;
>>>>> -		igt_pipe_t *pipe;
>>>>> -		igt_plane_t *plane;
>>>>> +	for (i = 0; i < output_count; ++i)
>>>>> +		current_combination[i] = i * pipes_per_output;
>>>>> -		if (p == PIPE_NONE)
>>>>> -			continue;
>>>>> -
>>>>> -		mode = igt_output_get_mode(output);
>>>>> -		igt_info("pipe:%s, output:%s, mode:", kmstest_pipe_name(p), igt_output_name(output));
>>>>> -		kmstest_dump_mode(mode);
>>>>> +	while (*num_combinations < MAX_COMBINATIONS && current_combination[0] <= pipe_count - output_count * pipes_per_output) {
>>>>> +		for (i = 0; i < output_count; ++i)
>>>>> +			combinations[*num_combinations].combination[i] = current_combination[i];
>>>>> -		pipe = &display->pipes[p];
>>>>> -		plane = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
>>>>> +		(*num_combinations)++;
>>>>> -		igt_plane_set_fb(plane, &data->fb);
>>>>> -		igt_fb_set_size(&data->fb, plane, mode->hdisplay, mode->vdisplay);
>>>>> -		igt_plane_set_size(plane, mode->hdisplay, mode->vdisplay);
>>>>> -	}
>>>>> +		index = output_count - 1;
>>>>> +		while (index >= 0 && current_combination[index] == pipe_count - (output_count - index) * pipes_per_output)
>>>>> +			index--;
>>>>> -	igt_assert(!igt_check_bigjoiner_support(display));
>>>>> +		if (index < 0)
>>>>> +			break;
>>>>> -	/* This commit is expectd to fail as this pipe is being used for big joiner */
>>>>> -	ret = igt_display_try_commit_atomic(display, DRM_MODE_ATOMIC_TEST_ONLY |
>>>>> -					    DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
>>>>> +		current_combination[index]++;
>>>>> +		for (i = index + 1; i < output_count; ++i)
>>>>> +			current_combination[i] = current_combination[i - 1] + pipes_per_output;
>>>>> +    }
>>>>> +}
>>>>> -	igt_display_reset(&data->display);
>>>>> -	igt_display_commit2(display, COMMIT_ATOMIC);
>>>>> +static igt_output_t *get_output_by_id_or_assert(data_t *data, uint64_t output_id)
>>>>> +{
>>>>> +	igt_output_t *output;
>>>>> -	igt_assert_lt(ret, 0);
>>>>> +	for_each_connected_output(&data->display, output) {
>>>>> +		if (output->id == output_id)
>>>>> +			return output;
>>>>> +	}
>>>>> +	igt_assert("Output not found\n");
>>>>> +	return NULL;
>>>>>    }
>>>>> -static void test_basic_modeset(data_t *data)
>>>>> +static void test_invalid_modeset_two_joiner(data_t *data, bool combined)
>>>>>    {
>>>>> +	int i, j, ret;
>>>>> +	igt_output_t *output;
>>>>> +	uint64_t *outputs;
>>>>> +	igt_plane_t *primary[INVALID_TEST_OUTPUT];
>>>>> +	igt_fb_t fb[INVALID_TEST_OUTPUT];
>>>>>    	drmModeModeInfo *mode;
>>>>> -	igt_output_t *output, *bigjoiner_output = NULL;
>>>>> -	igt_display_t *display = &data->display;
>>>>> -	igt_pipe_t *pipe;
>>>>> -	igt_plane_t *plane;
>>>>> -	igt_display_reset(display);
>>>>> -
>>>>> -	for_each_connected_output(display, output) {
>>>>> -		if (data->output[0].output_id == output->id) {
>>>>> -			bigjoiner_output = output;
>>>>> -			break;
>>>>> +	outputs = combined ? data->combined_outputs : data->big_joiner_outputs;
>>>>> +
>>>>> +	for (i = 0; i < data->n_pipes-1; i++) {
>>>>> +		igt_display_reset(&data->display);
>>>>> +		for (j = 0; j < INVALID_TEST_OUTPUT; j++) {
>>>>> +			output = get_output_by_id_or_assert(data, outputs[j]);
>>>>> +			igt_assert(output);
>>>>> +			igt_output_set_pipe(output, data->pipe_seq[i + j]);
>>>>> +			mode = igt_output_get_mode(output);
>>>>> +			igt_info("Assigning pipe %s to %s with mode %dx%d@%d%s",
>>>>> +				 kmstest_pipe_name(data->pipe_seq[i + j]),
>>>>> +				 igt_output_name(output), mode->hdisplay,
>>>>> +				 mode->vdisplay, mode->vrefresh,
>>>>> +				 j == INVALID_TEST_OUTPUT - 1 ? "\n" : ", ");
>>>>> +			primary[j] = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
>>>>> +			igt_create_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay, DRM_FORMAT_XRGB8888,
>>>>> +								  DRM_FORMAT_MOD_LINEAR, &fb[j]);
>>>>> +			igt_plane_set_fb(primary[j], &fb[j]);
>>>>>    		}
>>>>> +		ret = igt_display_try_commit2(&data->display, COMMIT_ATOMIC);
>>>>> +		igt_assert_f(ret != 0, "Commit shouldn't have passed\n");
>>>>>    	}
>>>>> -
>>>>> -	igt_output_set_pipe(bigjoiner_output, data->pipe1);
>>>>> -
>>>>> -	mode = &data->output[0].mode;
>>>>> -	igt_output_override_mode(bigjoiner_output, mode);
>>>>> -
>>>>> -	pipe = &display->pipes[data->pipe1];
>>>>> -	plane = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
>>>>> -
>>>>> -	igt_plane_set_fb(plane, &data->fb);
>>>>> -	igt_fb_set_size(&data->fb, plane, mode->hdisplay, mode->vdisplay);
>>>>> -	igt_plane_set_size(plane, mode->hdisplay, mode->vdisplay);
>>>>> -
>>>>> -	igt_display_commit2(display, COMMIT_ATOMIC);
>>>>> -
>>>>> -	igt_output_set_pipe(bigjoiner_output, PIPE_NONE);
>>>>> -	igt_plane_set_fb(plane, NULL);
>>>>> -	igt_display_commit2(display, COMMIT_ATOMIC);
>>>>>    }
>>>>> -static void test_dual_display(data_t *data)
>>>>> +static void tets_big_joiner_on_last_pipe(data_t *data)
>>>>>    {
>>>>> +	int i, ret;
>>>>> +	uint64_t *outputs;
>>>>> +	igt_output_t *output;
>>>>> +	igt_plane_t *primary;
>>>>> +	igt_fb_t fb;
>>>>>    	drmModeModeInfo *mode;
>>>>> -	igt_output_t *output, *bigjoiner_output[2];
>>>>> -	igt_display_t *display = &data->display;
>>>>> -	igt_pipe_t *pipe;
>>>>> -	igt_plane_t *plane1, *plane2;
>>>>> -	int count = 0;
>>>>> -
>>>>> -	igt_display_reset(display);
>>>>> -
>>>>> -	for_each_connected_output(display, output) {
>>>>> -		if (data->output[count].output_id == output->id) {
>>>>> -			bigjoiner_output[count] = output;
>>>>> -			count++;
>>>>> -		}
>>>>> -		if (count > 1)
>>>>> -			break;
>>>>> +	outputs = data->big_joiner_outputs;
>>>>> +	for (i = 0; i < data->big_joiner_output_count; i++) {
>>>>> +		igt_display_reset(&data->display);
>>>>> +		output = get_output_by_id_or_assert(data, outputs[i]);
>>>>> +		igt_output_set_pipe(output, data->pipe_seq[data->n_pipes - 1]);
>>>>> +		mode = igt_output_get_mode(output);
>>>>> +		igt_info("Assigning pipe %s to %s with mode %dx%d@%d\n",
>>>>> +				 kmstest_pipe_name(data->pipe_seq[data->n_pipes - 1]),
>>>>> +				 igt_output_name(output), mode->hdisplay,
>>>>> +				 mode->vdisplay, mode->vrefresh);
>>>>> +		primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
>>>>> +		igt_create_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay, DRM_FORMAT_XRGB8888,
>>>>> +							  DRM_FORMAT_MOD_LINEAR, &fb);
>>>>> +		igt_plane_set_fb(primary, &fb);
>>>>> +		ret = igt_display_try_commit2(&data->display, COMMIT_ATOMIC);
>>>>> +		igt_assert_f(ret != 0, "Commit shouldn't have passed\n");
>>>>>    	}
>>>>> +}
>>>>> -	igt_output_set_pipe(bigjoiner_output[0], data->pipe1);
>>>>> -	igt_output_set_pipe(bigjoiner_output[1], data->pipe2);
>>>>> -
>>>>> -	/* Set up first big joiner output on Pipe A*/
>>>>> -	mode = &data->output[0].mode;
>>>>> -	igt_output_override_mode(bigjoiner_output[0], mode);
>>>>> -
>>>>> -	pipe = &display->pipes[data->pipe1];
>>>>> -	plane1 = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
>>>>> -
>>>>> -	igt_plane_set_fb(plane1, &data->fb);
>>>>> -	igt_fb_set_size(&data->fb, plane1, mode->hdisplay, mode->vdisplay);
>>>>> -	igt_plane_set_size(plane1, mode->hdisplay, mode->vdisplay);
>>>>> -
>>>>> -	/* Set up second big joiner output on Pipe C*/
>>>>> -	mode = &data->output[1].mode;
>>>>> -	igt_output_override_mode(bigjoiner_output[1], mode);
>>>>> -
>>>>> -	pipe = &display->pipes[data->pipe2];
>>>>> -	plane2 = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
>>>>> -
>>>>> -	igt_plane_set_fb(plane2, &data->fb);
>>>>> -	igt_fb_set_size(&data->fb, plane2, mode->hdisplay, mode->vdisplay);
>>>>> -	igt_plane_set_size(plane2, mode->hdisplay, mode->vdisplay);
>>>>> -
>>>>> -	igt_display_commit2(display, COMMIT_ATOMIC);
>>>>> +static void test_basic_modeset(data_t *data, int num_outputs,
>>>>> +			       Combination combinations[MAX_COMBINATIONS],
>>>>> +			       uint64_t num_combinations)
>>>>> +{
>>>>> +	int i, j, ret;
>>>>> +	igt_display_t *display = &data->display;
>>>>> +	igt_output_t *output[num_outputs];
>>>>> +	igt_plane_t *primary[num_outputs];
>>>>> +	igt_fb_t fb[num_outputs];
>>>>> +	drmModeModeInfo *mode;
>>>>> -	/* Clean up */
>>>>> -	igt_output_set_pipe(bigjoiner_output[0], PIPE_NONE);
>>>>> -	igt_output_set_pipe(bigjoiner_output[1], PIPE_NONE);
>>>>> -	igt_plane_set_fb(plane1, NULL);
>>>>> -	igt_plane_set_fb(plane2, NULL);
>>>>> -	igt_display_commit2(display, COMMIT_ATOMIC);
>>>>> +	for (i = 0; i < num_combinations; i++) {
>>>>> +		igt_display_reset(display);
>>>>> +		for (j = 0; j < num_outputs; j++) {
>>>>> +			output[j] = get_output_by_id_or_assert(data,
>>>>> +						     data->big_joiner_outputs[j]);
>>>>> +			igt_info("Assigning pipe %s to %s%s",
>>>>> +				 kmstest_pipe_name(data->pipe_seq[combinations[i].combination[j]]),
>>>>> +				 output[j]->name, j == num_outputs - 1 ? "\n" : ", ");
>>>>> +			igt_output_set_pipe(output[j], data->pipe_seq[combinations[i].combination[j]]);
>>>>> +			primary[j] = igt_output_get_plane_type(output[j], DRM_PLANE_TYPE_PRIMARY);
>>>>> +			mode = igt_output_get_mode(output[j]);
>>>>> +			igt_create_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay, DRM_FORMAT_XRGB8888,
>>>>> +								  DRM_FORMAT_MOD_LINEAR, &fb[j]);
>>>>> +			igt_plane_set_fb(primary[j], &fb[j]);
>>>>> +		}
>>>>> +		ret = igt_display_try_commit2(display, COMMIT_ATOMIC);
>>>>> +		igt_assert_f(ret == 0, "Commit failed\n");
>>>>> +    }
>>>>>    }
>>>>>    igt_main
>>>>>    {
>>>>> +	int i, j;
>>>>>    	data_t data;
>>>>>    	igt_output_t *output;
>>>>> -	drmModeModeInfo mode;
>>>>> -	int valid_output = 0, i, count = 0, j = 0;
>>>>> -	uint16_t width = 0, height = 0;
>>>>> -	enum pipe pipe_seq[IGT_MAX_PIPES];
>>>>> +	drmModeModeInfo default_mode;
>>>>> +	i = j = 0;
>>>>>    	igt_fixture {
>>>>>    		data.drm_fd = drm_open_driver_master(DRIVER_INTEL | DRIVER_XE);
>>>>>    		kmstest_set_vt_graphics_mode();
>>>>> -
>>>>>    		igt_display_require(&data.display, data.drm_fd);
>>>>>    		igt_require(data.display.is_atomic);
>>>>> -
>>>>>    		max_dotclock = igt_get_max_dotclock(data.drm_fd);
>>>>> +		data.big_joiner_output_count = 0;
>>>>> +		data.non_big_joiner_output_count = 0;
>>>>> +		data.combined_output_count = 0;
>>>>> +		data.output_count = 0;
>>>>>    		for_each_connected_output(&data.display, output) {
>>>>>    			bool found = false;
>>>>>    			drmModeConnector *connector = output->config.connector;
>>>>> -
>>>>> -			/*
>>>>> -			 * Bigjoiner will come in to the picture when the
>>>>> -			 * resolution > 5K or clock > max-dot-clock.
>>>>> -			 */
>>>>>    			found = bigjoiner_mode_found(data.drm_fd, connector, max_dotclock);
>>>>> -
>>>>>    			if (found) {
>>>>> -				data.output[count].output_id = output->id;
>>>>> -				memcpy(&data.output[count].mode, &mode, sizeof(drmModeModeInfo));
>>>>> -				count++;
>>>>> -
>>>>> -				width = max(width, mode.hdisplay);
>>>>> -				height = max(height, mode.vdisplay);
>>>>> +				data.big_joiner_outputs[data.big_joiner_output_count++] = output->id;
>>>>> +				igt_output_override_mode(output, &connector->modes[0]);
>>>>> +			} else {
>>>>> +				data.non_big_joiner_outputs[data.non_big_joiner_output_count++] = output->id;
>>>>> +				kmstest_get_connector_default_mode(data.drm_fd, connector, &default_mode);
>>>>> +				igt_output_override_mode(output, &default_mode);
>>>>>    			}
>>>>> -			valid_output++;
>>>>> +			data.output_count++;
>>>>> +		}
>>>>> +
>>>>> +		if (data.big_joiner_output_count == 1 && data.non_big_joiner_output_count > 0) {
>>>>> +			data.combined_outputs[data.combined_output_count++] = data.big_joiner_outputs[0];
>>>>> +			data.combined_outputs[data.combined_output_count++] = data.non_big_joiner_outputs[0];
>>>>>    		}
>>>>>    		data.n_pipes = 0;
>>>>>    		for_each_pipe(&data.display, i) {
>>>>>    			data.n_pipes++;
>>>>> -			pipe_seq[j] = i;
>>>>> +			data.pipe_seq[j] = i;
>>>>>    			j++;
>>>>>    		}
>>>>> -
>>>>> -		igt_require_f(count > 0, "No output with 5k+ mode (or) clock > max-dot-clock found\n");
>>>>> -
>>>>> -		igt_create_pattern_fb(data.drm_fd, width, height, DRM_FORMAT_XRGB8888,
>>>>> -				      DRM_FORMAT_MOD_LINEAR, &data.fb);
>>>>>    	}
>>>>>    	igt_describe("Verify the basic modeset on big joiner mode on all pipes");
>>>>>    	igt_subtest_with_dynamic("basic") {
>>>>> -		for (i = 0; i < data.n_pipes - 1; i++) {
>>>>> -			data.pipe1 = pipe_seq[i];
>>>>> -			igt_dynamic_f("pipe-%s", kmstest_pipe_name(pipe_seq[i]))
>>>>> -				test_basic_modeset(&data);
>>>>> +		igt_require_f(data.big_joiner_output_count > 0, "Big joiner output not found\n");
>>>>> +		igt_require_f(data.n_pipes > 1, "Minimum of 2 pipes are required\n");
>>>>> +
>>>>> +		for (i = 0; i < data.big_joiner_output_count; i++) {
>>>>> +			uint64_t num_combinations = 0;
>>>>> +			Combination combinations[MAX_COMBINATIONS];
>>>>> +
>>>>> +			generate_combinations(i+1, data.n_pipes, BIG_JOINER, combinations, &num_combinations);
>>>>> +			igt_info("Number of combinations for %d outputs and %d pipes are %ld\n",
>>>>> +					 i+1, data.n_pipes, num_combinations);
>>>>> +
>>>>> +			if (num_combinations > 0)
>>>>> +				igt_dynamic_f("%dx-big-joiner", i+1)
>>>>> +					test_basic_modeset(&data, i+1, combinations, num_combinations);
>>>>> +			else
>>>>> +				break;
>>>>>    		}
>>>>>    	}
>>>>> -	igt_describe("Verify if the modeset on the adjoining pipe is rejected "
>>>>> -		     "when the pipe is active with a big joiner modeset");
>>>>>    	igt_subtest_with_dynamic("invalid-modeset") {
>>>>> -		data.pipe1 = pipe_seq[j - 1];
>>>>> -
>>>>> -		igt_display_reset(&data.display);
>>>>> -		for_each_connected_output(&data.display, output) {
>>>>> -			if (data.output[0].output_id != output->id)
>>>>> -				continue;
>>>>> -
>>>>> -			mode = data.output[0].mode;
>>>>> -			igt_output_set_pipe(output, data.pipe1);
>>>>> -			igt_output_override_mode(output, &mode);
>>>>> +		igt_require_f(data.big_joiner_output_count > 0, "Big joiner output not found\n");
>>>>> +		igt_require_f(data.n_pipes > 1, "Minimum of 2 pipes are required\n");
>>>>> -			igt_dynamic_f("pipe-%s-%s",
>>>>> -				      kmstest_pipe_name(data.pipe1),
>>>>> -				      igt_output_name(output))
>>>>> -				test_invalid_modeset(&data);
>>>>> -		}
>>>>> +		if (data.big_joiner_output_count >= 1)
>>>>> +			igt_dynamic_f("big_joiner_on_last_pipe")
>>>>> +				tets_big_joiner_on_last_pipe(&data);
>>>>> -		if(valid_output > 1) {
>>>>> -			for (i = 0; i < data.n_pipes - 1; i++) {
>>>>> -				igt_output_t *first_output = NULL, *second_output = NULL;
>>>>> -
>>>>> -				data.pipe1 = pipe_seq[i];
>>>>> -				data.pipe2 = pipe_seq[i + 1];
>>>>> -
>>>>> -				igt_display_reset(&data.display);
>>>>> -				for_each_connected_output(&data.display, output) {
>>>>> -					if (data.output[0].output_id == output->id) {
>>>>> -						first_output = output;
>>>>> -						mode = data.output[0].mode;
>>>>> -
>>>>> -						igt_output_set_pipe(output, data.pipe1);
>>>>> -						igt_output_override_mode(output, &mode);
>>>>> -					} else if (second_output == NULL) {
>>>>> -						second_output = output;
>>>>> -						igt_output_set_pipe(output, data.pipe2);
>>>>> -
>>>>> -						break;
>>>>> -					}
>>>>> -				}
>>>>> -
>>>>> -				igt_dynamic_f("pipe-%s-%s-pipe-%s-%s",
>>>>> -					      kmstest_pipe_name(data.pipe1),
>>>>> -					      igt_output_name(first_output),
>>>>> -					      kmstest_pipe_name(data.pipe2),
>>>>> -					      igt_output_name(second_output))
>>>>> -					test_invalid_modeset(&data);
>>>>> -			}
>>>>> -		}
>>>>> -	}
>>>>> +		if (data.big_joiner_output_count > 1)
>>>>> +			igt_dynamic_f("invalid_combinations_with_two_bigjoiner")
>>>>> +				test_invalid_modeset_two_joiner(&data, false);
>>>>> -	igt_describe("Verify simultaneous modeset on 2 big joiner outputs");
>>>>> -	igt_subtest_with_dynamic("2x-modeset") {
>>>>> -		igt_require_f(count > 1, "2 outputs with big joiner modes are required\n");
>>>>> -		igt_require_f(data.n_pipes > 3, "Minumum of 4 pipes are required\n");
>>>>> -		for (i = 0; (i + 2) < data.n_pipes - 1; i++) {
>>>>> -			data.pipe1 = pipe_seq[i];
>>>>> -			data.pipe2 = pipe_seq[i + 2];
>>>>> -			igt_dynamic_f("pipe-%s-%s", kmstest_pipe_name(pipe_seq[i]), kmstest_pipe_name(pipe_seq[i + 2]))
>>>>> -				test_dual_display(&data);
>>>>> +		if (data.combined_output_count) {
>>>>> +			igt_dynamic_f("invalid_combinations_with_bigjoiner_non_bigjoiner")
>>>>> +				test_invalid_modeset_two_joiner(&data, true);
>>>>>    		}
>>>>>    	}
>>>>>    	igt_fixture {
>>>>> -		igt_remove_fb(data.drm_fd, &data.fb);
>>>>>    		igt_display_fini(&data.display);
>>>>>    		drm_close_driver(data.drm_fd);
>>>>>    	}
>>>>> -- 
>>>>> 2.25.1
>>> Thanks and Regards
>>> Kunal Joshi


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