[PATCH i-g-t v4 04/12] tests/perf: rc6: try to guess when rc6 is disabled

[Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>]

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
---
 tests/perf.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tests/perf.c b/tests/perf.c
index bc5ea133..1b441601 100644
--- a/tests/perf.c
+++ b/tests/perf.c
@@ -3445,6 +3445,17 @@ gen8_test_single_ctx_render_target_writes_a_counter(void)
 	} while (WEXITSTATUS(child_ret) == EAGAIN);
 }
 
+static bool
+rc6_enabled(void)
+{
+	char *rc6_status = read_debugfs_record(drm_fd, "i915_drpc_info",
+					       "RC6 Enabled");
+	bool enabled = strcmp(rc6_status, "yes") == 0;
+
+	free(rc6_status);
+	return enabled;
+}
+
 static void
 test_rc6_disable(void)
 {
@@ -3464,6 +3475,8 @@ test_rc6_disable(void)
 	};
 	uint64_t n_events_start, n_events_end;
 
+	igt_skip_on(!rc6_enabled());
+
 	stream_fd = __perf_open(drm_fd, &param);
 
 	n_events_start = read_debugfs_u64_record(drm_fd, "i915_drpc_info",
-- 
2.14.1

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