[i-g-t, v9, 1/3] tests/intel/pm_rc6_residency: Ensure that SLPC is enabled for test rc6-idle

[Sk Anirban]

The test currently utilizes sysfs to adjust the RPS minimum frequency
to RP0 in order to reach peak frequency. Therefore, skip the test on
older platforms where SLPC is not enabled.

Signed-off-by: Sk Anirban <sk.anirban at intel.com>
---
 tests/intel/i915_pm_rc6_residency.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/intel/i915_pm_rc6_residency.c b/tests/intel/i915_pm_rc6_residency.c
index d3fa95423..be176a593 100644
--- a/tests/intel/i915_pm_rc6_residency.c
+++ b/tests/intel/i915_pm_rc6_residency.c
@@ -617,6 +617,10 @@ igt_main
 
 		igt_require_gem(i915);
 		gem_quiescent_gpu(i915);
+		igt_require_f(gem_using_guc_submission(i915) &&
+			      i915_is_slpc_enabled(i915),
+			      "This test can only be conducted if SLPC is enabled\n");
+		const struct intel_execution_engine2 *e;
 
 		s_dirfd = igt_sysfs_gt_open(i915, 0);
 		stash_min = get_freq(s_dirfd, RPS_MIN_FREQ_MHZ);
-- 
2.43.0