linux-kernel - [PATCH v4 21/22] interconnect: qcom: icc-rpm: Set correct bandwidth through RPM bw req

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230526-topic-smd_icc-v4-21-5ba82b6fbba2@linaro.org>
Date:   Tue, 13 Jun 2023 16:03:21 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Georgi Djakov <djakov@...nel.org>,
        Leo Yan <leo.yan@...aro.org>,
        Evan Green <evgreen@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Stephan Gerhold <stephan@...hold.net>
Subject: [PATCH v4 21/22] interconnect: qcom: icc-rpm: Set correct
 bandwidth through RPM bw req

Currently, we're setting the aggregated-on-provider bandwidth on each
node, individually. That is of course incorrect and results in far too
high votes. Use the correct values to ensure we're not wasting power.

Fixes: 30c8fa3ec61a ("interconnect: qcom: Add MSM8916 interconnect provider driver")
Reported-by: Stephan Gerhold <stephan@...hold.net>
Reviewed-by: Stephan Gerhold <stephan@...hold.net>
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/interconnect/qcom/icc-rpm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c
index 4dd53777dbaf..34e0580f1ffe 100644
--- a/drivers/interconnect/qcom/icc-rpm.c
+++ b/drivers/interconnect/qcom/icc-rpm.c
@@ -355,12 +355,12 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
 
 	qcom_icc_bus_aggregate(provider, agg_avg, agg_peak, &max_agg_avg);
 
-	ret = qcom_icc_rpm_set(src_qn, agg_avg);
+	ret = qcom_icc_rpm_set(src_qn, src_qn->sum_avg);
 	if (ret)
 		return ret;
 
 	if (dst_qn) {
-		ret = qcom_icc_rpm_set(dst_qn, agg_avg);
+		ret = qcom_icc_rpm_set(dst_qn, dst_qn->sum_avg);
 		if (ret)
 			return ret;
 	}

-- 
2.41.0