[igt-dev] [PATCH i-g-t] tests/kms_psr2_sf: Enable selective fetch feature in kernel

[José Roberto de Souza]

Enable PSR2 selective fetch using debugfs during test setup, this will
allow us to have some test coverage of this feature by CI.

Cc: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>
Cc: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 lib/igt_psr.c       |  3 +++
 lib/igt_psr.h       |  3 ++-
 tests/kms_psr2_sf.c | 10 ++++++----
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/lib/igt_psr.c b/lib/igt_psr.c
index d5167fbad..68240f9a3 100644
--- a/lib/igt_psr.c
+++ b/lib/igt_psr.c
@@ -158,6 +158,9 @@ static bool psr_set(int device, int debugfs_fd, int mode)
 		case PSR_MODE_2:
 			debug_val = "0x2";
 			break;
+		case PSR_MODE_2_SEL_FETCH:
+			debug_val = "0x4";
+			break;
 		default:
 			/* Disables PSR */
 			debug_val = "0x1";
diff --git a/lib/igt_psr.h b/lib/igt_psr.h
index 25111cc2b..c47b197b1 100644
--- a/lib/igt_psr.h
+++ b/lib/igt_psr.h
@@ -32,7 +32,8 @@
 
 enum psr_mode {
 	PSR_MODE_1,
-	PSR_MODE_2
+	PSR_MODE_2,
+	PSR_MODE_2_SEL_FETCH,
 };
 
 bool psr_disabled_check(int debugfs_fd);
diff --git a/tests/kms_psr2_sf.c b/tests/kms_psr2_sf.c
index 296ed8476..8d3e13019 100644
--- a/tests/kms_psr2_sf.c
+++ b/tests/kms_psr2_sf.c
@@ -560,9 +560,6 @@ igt_main
 					       data.debugfs_fd, PSR_MODE_2),
 			      "Sink does not support PSR2\n");
 
-		igt_require_f(psr2_selective_fetch_check(data.debugfs_fd),
-			      "PSR2 selective fetch not enabled\n");
-
 		data.bufmgr = drm_intel_bufmgr_gem_init(data.drm_fd, 4096);
 		igt_assert(data.bufmgr);
 		drm_intel_bufmgr_gem_enable_reuse(data.bufmgr);
@@ -571,7 +568,7 @@ igt_main
 
 		/* Test if PSR2 can be enabled */
 		igt_require_f(psr_enable(data.drm_fd,
-					 data.debugfs_fd, PSR_MODE_2),
+					 data.debugfs_fd, PSR_MODE_2_SEL_FETCH),
 			      "Error enabling PSR2\n");
 
 		data.damage_area_count = MAX_DAMAGE_AREAS;
@@ -579,6 +576,11 @@ igt_main
 		data.test_plane_id = DRM_PLANE_TYPE_PRIMARY;
 		prepare(&data);
 		r = psr_wait_entry(data.debugfs_fd, PSR_MODE_2);
+		if (!r)
+			psr_print_debugfs(data.debugfs_fd);
+
+		igt_require_f(psr2_selective_fetch_check(data.debugfs_fd),
+			      "PSR2 selective fetch not enabled\n");
 		cleanup(&data);
 		if (!r)
 			psr_print_debugfs(data.debugfs_fd);
-- 
2.30.1