[PATCH i-g-t v8 8/9] tests/intel/kms_ccs: limit #pipes tested during suspend

["Michał Grzelak" <michal.grzelak@linux.intel.com>]

Limit execution of suspend tests to first and last active pipe unless
using `extended` flag. This reduces default execution time of the test.
In turn this can lower chances of hitting CI timeout.

Alternatively test could be run on first and last CRTC; but due to pipe
reordering, this would result in using arbitrary pipes. Thus set first
and last pipe as the only available in suspend resume case.

v7->v8
- use pipe mask (Jani)

v6->v7
- use first and last hardware pipe instead of CRTCs (J-P, Jani)

v5->v6
- describe how pipe reordering affects the test (Jani)

v3->v4
- set `first' and `last' indices outside of crtc loop (Thasleem)

Signed-off-by: Michał Grzelak <michal.grzelak@linux.intel.com>
---
 tests/intel/kms_ccs.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/tests/intel/kms_ccs.c b/tests/intel/kms_ccs.c
index 734dafd110..3af091fd87 100644
--- a/tests/intel/kms_ccs.c
+++ b/tests/intel/kms_ccs.c
@@ -192,6 +192,7 @@ typedef struct {
 	bool available_pipes[IGT_MAX_PIPES];
 	bool do_hibernate;
 	bool all_outputs;
+	bool all_crtcs;
 	struct {
 		struct igt_fb fb;
 		int width, height;
@@ -1098,7 +1099,9 @@ static bool set_available_hw_pipes(data_t *data)
 
 	for_each_crtc(&data->display, crtc) {
 		hw_pipe = crtc->hardware_pipe;
-		data->available_pipes[hw_pipe] = true;
+
+		if (data->all_crtcs)
+			data->available_pipes[hw_pipe] = true;
 
 		if (last_pipe < hw_pipe)
 			last_pipe = hw_pipe;
@@ -1110,6 +1113,9 @@ static bool set_available_hw_pipes(data_t *data)
 	if (first_pipe == IGT_MAX_PIPES || last_pipe == PIPE_NONE)
 		return false;
 
+	data->available_pipes[first_pipe] = true;
+	data->available_pipes[last_pipe] = true;
+
 	return true;
 }
 
@@ -1260,6 +1266,9 @@ static int opt_handler(int opt, int opt_index, void *opt_data)
 	case 'n':
 		data->all_outputs = true;
 		break;
+	case 'e':
+		data->all_crtcs = true;
+		break;
 	default:
 		return IGT_OPT_HANDLER_ERROR;
 	}
@@ -1274,9 +1283,10 @@ static const char *help_str =
 "  -s <seed>\tSeed for random number generator\n"
 "  -r\t\tOn suspend test do full hibernate with reboot\n"
 "  -n\t\tRun on all connectors. (By default suspend subtests will run on 3 connectors)\n"
+"  -e\t\tRun on all CRTCs. (By default subtests will run on two CRTCs)\n"
 ;
 
-int igt_main_args("csrn:", NULL, help_str, opt_handler, &data)
+int igt_main_args("csrne:", NULL, help_str, opt_handler, &data)
 {
 	igt_fixture() {
 		data.drm_fd = drm_open_driver_master(DRIVER_INTEL | DRIVER_XE);
-- 
2.45.2