IPA_AGGR_GRANULARITY
ticks = DIV_ROUND_CLOSEST(microseconds, IPA_AGGR_GRANULARITY);
microseconds, max * IPA_AGGR_GRANULARITY);
u32 granularity = ipa_aggr_granularity_val(IPA_AGGR_GRANULARITY);
BUILD_BUG_ON(!IPA_AGGR_GRANULARITY);
BUILD_BUG_ON(!ipa_aggr_granularity_val(IPA_AGGR_GRANULARITY));