doorbell_ok 781 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c if (!doorbell_ok(guc, db_id)) doorbell_ok 41 drivers/gpu/drm/i915/gt/uc/selftest_guc.c if (!doorbell_ok(guc, db_id)) { doorbell_ok 98 drivers/gpu/drm/i915/gt/uc/selftest_guc.c return !client || doorbell_ok(client->guc, client->doorbell_id);