[igt-dev] [PATCH i-g-t] igt/perf_pmu: Disable accuracy tests for guc

[Chris Wilson]

guc also uses timer-based sampling and cannot reliably hit our accuracy
requirements for the test, so skip.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 tests/perf_pmu.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/tests/perf_pmu.c b/tests/perf_pmu.c
index 4570f926d..61e83bf7b 100644
--- a/tests/perf_pmu.c
+++ b/tests/perf_pmu.c
@@ -1507,6 +1507,17 @@ static void __rearm_spin_batch(igt_spin_t *spin)
 #define assert_within(x, ref, tolerance) \
 	__assert_within(x, ref, tolerance, tolerance)
 
+static bool uses_timer_sampling(int gem_fd)
+{
+	if (!gem_has_execlists(gem_fd))
+		return true;
+
+	if (gem_has_guc_submission(gem_fd))
+		return true;
+
+	return false;
+}
+
 static void
 accuracy(int gem_fd, const struct intel_execution_engine2 *e,
 	 unsigned long target_busy_pct)
@@ -1524,7 +1535,7 @@ accuracy(int gem_fd, const struct intel_execution_engine2 *e,
 	int fd;
 
 	/* Sampling platforms cannot reach the high accuracy criteria. */
-	igt_require(gem_has_execlists(gem_fd));
+	igt_require(!uses_timer_sampling(gem_fd));
 
 	while (idle_us < 2500) {
 		busy_us *= 2;
-- 
2.17.1