@@ -291,6 +291,32 @@ static int qcom_icc_bw_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
return 0;
}
+static u64 qcom_icc_calc_rate(struct qcom_icc_provider *qp, struct qcom_icc_node *qn, int ctx)
+{
+ u64 agg_avg_rate, agg_peak_rate, agg_rate;
+
+ if (qn->channels)
+ agg_avg_rate = div_u64(qn->sum_avg[ctx], qn->channels);
+ else
+ agg_avg_rate = qn->sum_avg[ctx];
+
+ if (qp->ab_coeff) {
+ agg_avg_rate = agg_avg_rate * qp->ab_coeff;
+ agg_avg_rate = div_u64(agg_avg_rate, 100);
+ }
+
+ if (qp->ib_coeff) {
+ agg_peak_rate = qn->max_peak[ctx] * 100;
+ agg_peak_rate = div_u64(qn->max_peak[ctx], qp->ib_coeff);
+ } else {
+ agg_peak_rate = qn->max_peak[ctx];
+ }
+
+ agg_rate = max_t(u64, agg_avg_rate, agg_peak_rate);
+
+ return div_u64(agg_rate, qn->buswidth);
+}
+
/**
* qcom_icc_bus_aggregate - calculate bus clock rates by traversing all nodes
* @provider: generic interconnect provider
@@ -299,10 +325,9 @@ static int qcom_icc_bw_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
static void qcom_icc_bus_aggregate(struct icc_provider *provider, u64 *agg_clk_rate)
{
struct qcom_icc_provider *qp = to_qcom_provider(provider);
- u64 agg_avg_rate, agg_peak_rate, agg_rate;
struct qcom_icc_node *qn;
struct icc_node *node;
- int i;
+ int ctx;
/*
* Iterate nodes on the provider, aggregate bandwidth requests for
@@ -310,27 +335,9 @@ static void qcom_icc_bus_aggregate(struct icc_provider *provider, u64 *agg_clk_r
*/
list_for_each_entry(node, &provider->nodes, node_list) {
qn = node->data;
- for (i = 0; i < QCOM_SMD_RPM_STATE_NUM; i++) {
- if (qn->channels)
- agg_avg_rate = div_u64(qn->sum_avg[i], qn->channels);
- else
- agg_avg_rate = qn->sum_avg[i];
-
- if (qp->ab_coeff) {
- agg_avg_rate = agg_avg_rate * qp->ab_coeff;
- agg_avg_rate = div_u64(agg_avg_rate, 100);
- }
-
- if (qp->ib_coeff) {
- agg_peak_rate = qn->max_peak[i] * 100;
- agg_peak_rate = div_u64(qn->max_peak[i], qp->ib_coeff);
- } else {
- agg_peak_rate = qn->max_peak[i];
- }
-
- agg_rate = max_t(u64, agg_avg_rate, agg_peak_rate);
-
- agg_clk_rate[i] = max_t(u64, agg_clk_rate[i], agg_rate);
+ for (ctx = 0; ctx < QCOM_SMD_RPM_STATE_NUM; ctx++) {
+ agg_clk_rate[ctx] = max_t(u64, agg_clk_rate[ctx],
+ qcom_icc_calc_rate(qp, qn, ctx));
}
}
}
In preparation for also setting per-node clock rates, separate out the logic that computes it. Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> --- drivers/interconnect/qcom/icc-rpm.c | 53 +++++++++++++++++++++---------------- 1 file changed, 30 insertions(+), 23 deletions(-)