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charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit On 13-02-2026 02:19 pm, Michał Grzelak wrote: > Currently 2x- subtests can still exceed timeout, even with limited > number of pipes used. It can be seen when number of outputs is greater > than 3. > > Default to testing at max 3 pairs of outputs. Add a commandline > parameter enabling suspend testing on all possible output pairs. Add a > LIMIT_PAIR macro which controls maximum number of output pairs to test. > > Signed-off-by: Michał Grzelak > --- > tests/kms_flip.c | 41 ++++++++++++++++++++++++++++++----------- > 1 file changed, 30 insertions(+), 11 deletions(-) > > diff --git a/tests/kms_flip.c b/tests/kms_flip.c > index d09813f02..1c8495ef1 100755 > --- a/tests/kms_flip.c > +++ b/tests/kms_flip.c > @@ -263,11 +263,14 @@ > #define RUN_TEST 1 > #define RUN_PAIR 2 > > +#define PAIR_LIMIT 3 > + > #ifndef DRM_CAP_TIMESTAMP_MONOTONIC > #define DRM_CAP_TIMESTAMP_MONOTONIC 6 > #endif > > static bool all_crtcs = false; > +static bool all_pairs = false; > > drmModeRes *resources; > int drm_fd; > @@ -1904,6 +1907,7 @@ static void run_pair(int duration, int flags) > { > struct test_output o; > int i, j, m, n, modes = 0; > + int pair_count = 0; > > /* No tiling support in XE. */ > if (is_xe_device(drm_fd) && flags & TEST_FENCE_STRESS) > @@ -1966,6 +1970,16 @@ static void run_pair(int duration, int flags) > for (m = n + 1; m < resources->count_crtcs; m++) { > int crtc_idxs[2]; > > + /* Limit the execution to 2 CRTCs (first & last) for hang and suspend tests */ > + if (((flags & TEST_HANG) || (flags & TEST_SUSPEND)) && !all_crtcs && > + ((n != 0 && n != resources->count_crtcs) || -->looks like needed to crrect n boundary check from count_crtcs to  count_crtcs-1 to match loop range, plese check it.. > + m != resources->count_crtcs - 1)) > + continue; > + > + /* Limit number of suspend tests */ > + if ((flags & TEST_SUSPEND) && !all_pairs && pair_count >= PAIR_LIMIT) > + continue; -->we are already reaching pair limit can't we return here, instead continue? > + > memset(&o, 0, sizeof(o)); > o.count = 2; > o._connector[0] = resources->connectors[i]; > @@ -1977,16 +1991,17 @@ static void run_pair(int duration, int flags) > crtc_idxs[0] = n; > crtc_idxs[1] = m; > > - /* Limit the execution to 2 CRTCs (first & last) for hang and suspend tests */ > - if (((flags & TEST_HANG) || (flags & TEST_SUSPEND)) && !all_crtcs && > - ((n != 0 && n != resources->count_crtcs) || -->looks like needed to crrect n boundary check from count_crtcs to count_crtcs-1 to match loop range, plese check it.. > - m != resources->count_crtcs - 1)) > - continue; > + connector_find_compatible_mode(n, m, &o); > > - run_test_on_crtc_set(&o, crtc_idxs, > - RUN_PAIR, > - resources->count_crtcs, > - duration); > + if (o.mode_valid) { > + run_test_on_crtc_set(&o, crtc_idxs, > + RUN_PAIR, > + resources->count_crtcs, > + duration); > + pair_count++; > + } else { > + free_test_output(&o); > + } --> this could be bettetr, plz check  --> if(!o.mod*) { free_test_output(&o); return; } -->run_test_on_crtc_set(xx); --> pair_count++; > } > } > } > @@ -2044,6 +2059,9 @@ static int opt_handler(int opt, int opt_index, void *data) > case 'e': > all_crtcs = true; > break; > + case 'p': > + all_pairs = true; > + break; > default: > return IGT_OPT_HANDLER_ERROR; > } > @@ -2052,9 +2070,10 @@ static int opt_handler(int opt, int opt_index, void *data) > } > > const char *help_str = > - " -e \tRun on all CRTCs. (By default subtests will run on two CRTCs)\n"; > + " -e \tRun on all CRTCs. (By default subtests will run on two CRTCs)\n" > + " -p \tRun on all output pairs. (By default 2x-* suspend subtests will run on 3 pairs)\n"; > > -int igt_main_args("e", NULL, help_str, opt_handler, NULL) > +int igt_main_args("ep", NULL, help_str, opt_handler, NULL) > { > struct { > int duration; --------------pL1fSCvSDasQI08gsAWPgUXE Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: 8bit


On 13-02-2026 02:19 pm, Michał Grzelak wrote:
Currently 2x- subtests can still exceed timeout, even with limited
number of pipes used. It can be seen when number of outputs is greater
than 3.

Default to testing at max 3 pairs of outputs. Add a commandline
parameter enabling suspend testing on all possible output pairs. Add a
LIMIT_PAIR macro which controls maximum number of output pairs to test.

Signed-off-by: Michał Grzelak <michal.grzelak@intel.com>
---
 tests/kms_flip.c | 41 ++++++++++++++++++++++++++++++-----------
 1 file changed, 30 insertions(+), 11 deletions(-)

diff --git a/tests/kms_flip.c b/tests/kms_flip.c
index d09813f02..1c8495ef1 100755
--- a/tests/kms_flip.c
+++ b/tests/kms_flip.c
@@ -263,11 +263,14 @@
 #define RUN_TEST		1
 #define RUN_PAIR		2
 
+#define PAIR_LIMIT 		3
+
 #ifndef DRM_CAP_TIMESTAMP_MONOTONIC
 #define DRM_CAP_TIMESTAMP_MONOTONIC 6
 #endif
 
 static bool all_crtcs = false;
+static bool all_pairs = false;
 
 drmModeRes *resources;
 int drm_fd;
@@ -1904,6 +1907,7 @@ static void run_pair(int duration, int flags)
 {
 	struct test_output o;
 	int i, j, m, n, modes = 0;
+	int pair_count = 0;
 
 	/* No tiling support in XE. */
 	if (is_xe_device(drm_fd) && flags & TEST_FENCE_STRESS)
@@ -1966,6 +1970,16 @@ static void run_pair(int duration, int flags)
 				for (m = n + 1; m < resources->count_crtcs; m++) {
 					int crtc_idxs[2];
 
+					/* Limit the execution to 2 CRTCs (first & last) for hang and suspend tests */
+					if (((flags & TEST_HANG) || (flags & TEST_SUSPEND)) && !all_crtcs &&
+					    ((n != 0 && n != resources->count_crtcs) ||

-->looks like needed to crrect n boundary check from count_crtcs to  count_crtcs-1 to match loop range, plese check it..

+					    m != resources->count_crtcs - 1))
+						continue;
+
+					/* Limit number of suspend tests */
+					if ((flags & TEST_SUSPEND) && !all_pairs && pair_count >= PAIR_LIMIT)
+						continue;
-->we are already reaching pair limit can't we return here, instead continue? 
+
 					memset(&o, 0, sizeof(o));
 					o.count = 2;
 					o._connector[0] = resources->connectors[i];
@@ -1977,16 +1991,17 @@ static void run_pair(int duration, int flags)
 					crtc_idxs[0] = n;
 					crtc_idxs[1] = m;
 
-					/* Limit the execution to 2 CRTCs (first & last) for hang and suspend tests */
-					if (((flags & TEST_HANG) || (flags & TEST_SUSPEND)) && !all_crtcs &&
-					    ((n != 0 && n != resources->count_crtcs) ||

-->looks like needed to crrect n boundary check from count_crtcs to count_crtcs-1 to match loop range, plese check it..

-					    m != resources->count_crtcs - 1))
-						continue;
+					connector_find_compatible_mode(n, m, &o);
 
-					run_test_on_crtc_set(&o, crtc_idxs,
-							     RUN_PAIR,
-							     resources->count_crtcs,
-							     duration);
+					if (o.mode_valid) {
+						run_test_on_crtc_set(&o, crtc_idxs,
+								     RUN_PAIR,
+								     resources->count_crtcs,
+								     duration);
+						pair_count++;
+					} else {
+						free_test_output(&o);
+					}

--> this could be bettetr, plz check  --> if(!o.mod*) {  free_test_output(&o); return; }

-->run_test_on_crtc_set(xx); 
--> pair_count++;

 				}
 			}
 		}
@@ -2044,6 +2059,9 @@ static int opt_handler(int opt, int opt_index, void *data)
 		case 'e':
 			all_crtcs = true;
 			break;
+		case 'p':
+			all_pairs = true;
+			break;
 		default:
 			return IGT_OPT_HANDLER_ERROR;
 	}
@@ -2052,9 +2070,10 @@ static int opt_handler(int opt, int opt_index, void *data)
 }
 
 const char *help_str =
-	"  -e \tRun on all CRTCs. (By default subtests will run on two CRTCs)\n";
+	"  -e \tRun on all CRTCs. (By default subtests will run on two CRTCs)\n"
+	"  -p \tRun on all output pairs. (By default 2x-* suspend subtests will run on 3 pairs)\n";
 
-int igt_main_args("e", NULL, help_str, opt_handler, NULL)
+int igt_main_args("ep", NULL, help_str, opt_handler, NULL)
 {
 	struct {
 		int duration;
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