oa_period        2867 drivers/gpu/drm/i915/i915_perf.c 		u64 oa_period, oa_freq_hz;
oa_period        2926 drivers/gpu/drm/i915/i915_perf.c 			BUILD_BUG_ON(sizeof(oa_period) != 8);
oa_period        2927 drivers/gpu/drm/i915/i915_perf.c 			oa_period = oa_exponent_to_ns(dev_priv, value);
oa_period        2935 drivers/gpu/drm/i915/i915_perf.c 			if (oa_period <= NSEC_PER_SEC) {
oa_period        2937 drivers/gpu/drm/i915/i915_perf.c 				do_div(tmp, oa_period);