[PATCH i-g-t 1/4] tests/intel/kms_frontbuffer_tracking: update the outdated fbc status checks

Vinod Govindapillai
2026-03-26T07:26:48Z

Replace the fbc status check for "mode too large for compression" wchich
is no longer being set by the driver with "plane size too big" and
"surface size too big" fbc status checks.

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
---
tests/intel/kms_frontbuffer_tracking.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/tests/intel/kms_frontbuffer_tracking.c b/tests/intel/kms_frontbuffer_tracking.c
index c16f63199..e764c9ce1 100644
--- a/tests/intel/kms_frontbuffer_tracking.c
+++ b/tests/intel/kms_frontbuffer_tracking.c
@@ -1664,15 +1664,23 @@ static bool fbc_stride_not_supported(void)
char buf[128];

debugfs_read_crtc("i915_fbc_status", buf);
- return strstr(buf, "FBC disabled: framebuffer stride not supported\n");
+ return strstr(buf, "FBC disabled: stride not supported\n");
}

-static bool fbc_mode_too_large(void)
+static bool fbc_plane_size_too_big(void)
{
char buf[128];

debugfs_read_crtc("i915_fbc_status", buf);
- return strstr(buf, "FBC disabled: mode too large for compression\n");
+ return strstr(buf, "FBC disabled: plane size too big\n");
+}
+
+static bool fbc_surface_size_too_big(void)
+{
+ char buf[128];
+
+ debugfs_read_crtc("i915_fbc_status", buf);
+ return strstr(buf, "FBC disabled: surface size too big\n");
}

static bool fbc_psr_not_possible(void)
@@ -2356,7 +2364,8 @@ static void do_status_assertions(int flags)
if (flags & ASSERT_FBC_ENABLED) {
igt_require(!fbc_not_enough_stolen());
igt_require(!fbc_stride_not_supported());
- igt_require(!fbc_mode_too_large());
+ igt_require(!fbc_plane_size_too_big());
+ igt_require(!fbc_surface_size_too_big());
igt_require(!fbc_psr_not_possible());
if (!intel_fbc_wait_until_enabled(prim_mode_params.crtc)) {
igt_assert_f(intel_fbc_is_enabled(prim_mode_params.crtc, IGT_LOG_WARN),
--
2.43.0