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authorKonrad Dybcio <konrad.dybcio@linaro.org>2023-03-09 00:40:08 +0300
committerGeorgi Djakov <djakov@kernel.org>2023-04-05 11:29:59 +0300
commit02819953b33a4410e6aa4595a043c052408c90d3 (patch)
tree25129641d38b111f692b675549aadd834f9367ca /drivers/interconnect/qcom/icc-rpm.c
parent1d779317eb6529d89bfe6d7900a2cf9e03149aeb (diff)
downloadlinux-02819953b33a4410e6aa4595a043c052408c90d3.tar.xz
interconnect: qcom: rpm: Add support for specifying channel num
Some nodes, like EBI0 (DDR) or L3/LLCC, may be connected over more than one channel. This should be taken into account in bandwidth calcualtion, as we're supposed to feed msmbus with the per-channel bandwidth. Add support for specifying that and use it during bandwidth aggregation. Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20230228-topic-qos-v7-2-815606092fff@linaro.org Signed-off-by: Georgi Djakov <djakov@kernel.org>
Diffstat (limited to 'drivers/interconnect/qcom/icc-rpm.c')
-rw-r--r--drivers/interconnect/qcom/icc-rpm.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c
index 56f29e0f0174..5341fa169dbf 100644
--- a/drivers/interconnect/qcom/icc-rpm.c
+++ b/drivers/interconnect/qcom/icc-rpm.c
@@ -316,6 +316,7 @@ static void qcom_icc_bus_aggregate(struct icc_provider *provider,
{
struct icc_node *node;
struct qcom_icc_node *qn;
+ u64 sum_avg[QCOM_ICC_NUM_BUCKETS];
int i;
/* Initialise aggregate values */
@@ -333,7 +334,11 @@ static void qcom_icc_bus_aggregate(struct icc_provider *provider,
list_for_each_entry(node, &provider->nodes, node_list) {
qn = node->data;
for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) {
- agg_avg[i] += qn->sum_avg[i];
+ if (qn->channels)
+ sum_avg[i] = div_u64(qn->sum_avg[i], qn->channels);
+ else
+ sum_avg[i] = qn->sum_avg[i];
+ agg_avg[i] += sum_avg[i];
agg_peak[i] = max_t(u64, agg_peak[i], qn->max_peak[i]);
}
}