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interconnect: qcom: icc-rpmh: Add BCMs to commit list in pre_aggregate

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commit b95b668eaa upstream.

We're only adding BCMs to the commit list in aggregate(), but there are
cases where pre_aggregate() is called without subsequently calling
aggregate(). In particular, in icc_sync_state() when a node with initial
BW has zero requests. Since BCMs aren't added to the commit list in
these cases, we don't actually send the zero BW request to HW. So the
resources remain on unnecessarily.

Add BCMs to the commit list in pre_aggregate() instead, which is always
called even when there are no requests.

Signed-off-by: Mike Tipton <mdtipton@codeaurora.org>
[georgi: remove icc_sync_state for platforms with incomplete support]
Link: https://lore.kernel.org/r/20211125174751.25317-1-djakov@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
[dianders: dropped sm8350.c which isn't present in 5.10]
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mike Tipton
2021-11-25 19:47:51 +02:00
committed by Greg Kroah-Hartman
parent a60babeb60
commit 4e74179a16
3 changed files with 5 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/interconnect/qcom/icc-rpmh.c
View File

@@ -20,13 +20,18 @@ void qcom_icc_pre_aggregate(struct icc_node *node)
{
size_t i;
struct qcom_icc_node *qn;
struct qcom_icc_provider *qp;
qn = node->data;
qp = to_qcom_provider(node->provider);
for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) {
qn->sum_avg[i] = 0;
qn->max_peak[i] = 0;
}
for (i = 0; i < qn->num_bcms; i++)
qcom_icc_bcm_voter_add(qp->voter, qn->bcms[i]);
}
EXPORT_SYMBOL_GPL(qcom_icc_pre_aggregate);
@@ -44,10 +49,8 @@ int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
{
size_t i;
struct qcom_icc_node *qn;
struct qcom_icc_provider *qp;
qn = node->data;
qp = to_qcom_provider(node->provider);
if (!tag)
tag = QCOM_ICC_TAG_ALWAYS;
@@ -67,9 +70,6 @@ int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
*agg_avg += avg_bw;
*agg_peak = max_t(u32, *agg_peak, peak_bw);
for (i = 0; i < qn->num_bcms; i++)
qcom_icc_bcm_voter_add(qp->voter, qn->bcms[i]);
return 0;
}
EXPORT_SYMBOL_GPL(qcom_icc_aggregate);

1
drivers/interconnect/qcom/sm8150.c
View File

@@ -627,7 +627,6 @@ static struct platform_driver qnoc_driver = {
.driver = {
.name = "qnoc-sm8150",
.of_match_table = qnoc_of_match,
.sync_state = icc_sync_state,
},
};
module_platform_driver(qnoc_driver);

1
drivers/interconnect/qcom/sm8250.c
View File

@@ -643,7 +643,6 @@ static struct platform_driver qnoc_driver = {
.driver = {
.name = "qnoc-sm8250",
.of_match_table = qnoc_of_match,
.sync_state = icc_sync_state,
},
};
module_platform_driver(qnoc_driver);