[PATCH i-g-t] tests/xe_fault_injection: Skip OA test if Xe OA interface is not available

[Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>]

Handle the case where the Xe OA interface is not available by checking
for ENODEV and skipping the test gracefully. This avoids test failures
on platforms where the OA feature is not supported.

No functional change to platforms where the interface is present.

Cc: Ashutosh Dixit <ashutosh.dixit@intel.com>
Cc: Jakub Kolakowski <jakub1.kolakowski@intel.com>
Cc: Nakshtra Goyal <nakshtra.goyal@intel.com>
Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
---
 tests/intel/xe_fault_injection.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tests/intel/xe_fault_injection.c b/tests/intel/xe_fault_injection.c
index 24d3df572..42b467e73 100644
--- a/tests/intel/xe_fault_injection.c
+++ b/tests/intel/xe_fault_injection.c
@@ -349,6 +349,7 @@ oa_add_config_fail(int fd, int sysfs, int devid, const char function_name[])
 	uint32_t mux_regs[] = { SAMPLE_MUX_REG, 0x0 };
 	struct drm_xe_oa_config config;
 	const char *uuid = "01234567-0123-0123-0123-0123456789ab";
+	int ret;
 
 	snprintf(path, sizeof(path), "metrics/%s/id", uuid);
 	/* Destroy previous configuration if present */
@@ -361,7 +362,10 @@ oa_add_config_fail(int fd, int sysfs, int devid, const char function_name[])
 	config.n_regs = 1;
 	config.regs_ptr = to_user_pointer(mux_regs);
 
-	igt_assert_lt(0, intel_xe_perf_ioctl(fd, DRM_XE_OBSERVATION_OP_ADD_CONFIG, &config));
+	ret = intel_xe_perf_ioctl(fd, DRM_XE_OBSERVATION_OP_ADD_CONFIG, &config);
+	igt_skip_on_f(ret == -1 && errno == ENODEV, "Xe OA interface not available\n");
+
+	igt_assert_lt(0, ret);
 	igt_assert(igt_sysfs_scanf(sysfs, path, "%" PRIu64, &config_id) == 1);
 	igt_assert_eq(intel_xe_perf_ioctl(fd, DRM_XE_OBSERVATION_OP_REMOVE_CONFIG, &config_id), 0);
 
-- 
2.31.1