static int qcom_osm_l3_set()

in qcom/osm-l3.c [182:213]

• 26 lines of code
• 3 McCabe index (conditional complexity)

static int qcom_osm_l3_set(struct icc_node *src, struct icc_node *dst)
{
	struct qcom_osm_l3_icc_provider *qp;
	struct icc_provider *provider;
	const struct qcom_osm_l3_node *qn;
	struct icc_node *n;
	unsigned int index;
	u32 agg_peak = 0;
	u32 agg_avg = 0;
	u64 rate;

	qn = src->data;
	provider = src->provider;
	qp = to_osm_l3_provider(provider);

	list_for_each_entry(n, &provider->nodes, node_list)
		provider->aggregate(n, 0, n->avg_bw, n->peak_bw,
				    &agg_avg, &agg_peak);

	rate = max(agg_avg, agg_peak);
	rate = icc_units_to_bps(rate);
	do_div(rate, qn->buswidth);

	for (index = 0; index < qp->max_state - 1; index++) {
		if (qp->lut_tables[index] >= rate)
			break;
	}

	writel_relaxed(index, qp->base + qp->reg_perf_state);

	return 0;
}