From: Konrad Dybcio <konrad.dybcio@linaro.org>
To: Stephan Gerhold <stephan@gerhold.net>
Cc: Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Georgi Djakov <djakov@kernel.org>, Leo Yan <leo.yan@linaro.org>,
Evan Green <evgreen@chromium.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Marijn Suijten <marijn.suijten@somainline.org>,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-clk@vger.kernel.org, linux-pm@vger.kernel.org,
devicetree@vger.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Subject: Re: [PATCH v3 20/23] interconnect: qcom: icc-rpm: Fix bucket number
Date: Tue, 13 Jun 2023 11:06:43 +0200 [thread overview]
Message-ID: <d90b350f-0068-4ce1-014d-0c35f26abe54@linaro.org> (raw)
In-Reply-To: <ZIeGrCj2bk2nVvIc@gerhold.net>
On 12.06.2023 22:57, Stephan Gerhold wrote:
> On Mon, Jun 12, 2023 at 08:24:37PM +0200, Konrad Dybcio wrote:
>> SMD RPM only provides two buckets, one each for the active-only and
>> active-sleep RPM contexts. Use the correct constant to allocate and
>> operate on them.
>>
>> This will make the qcom,icc.h header no longer work with this driver,
>> mostly because.. it was never meant to! The commit that introduced
>> bucket support to SMD RPM was trying to shove a square into a round
>> hole and it did not work out very well. That said, there are no
>> active users of SMD RPM ICC + qcom,icc.h, so that doesn't hurt.
>>
>> Fixes: dcbce7b0a79c ("interconnect: qcom: icc-rpm: Support multiple buckets")
>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
>> ---
>> drivers/interconnect/qcom/icc-rpm.c | 14 +++++++-------
>> drivers/interconnect/qcom/icc-rpm.h | 4 ++--
>> 2 files changed, 9 insertions(+), 9 deletions(-)
>>
>> diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c
>> index 5ffcf5ca8914..54a9999fe55d 100644
>> --- a/drivers/interconnect/qcom/icc-rpm.c
>> +++ b/drivers/interconnect/qcom/icc-rpm.c
>> @@ -249,7 +249,7 @@ static void qcom_icc_pre_bw_aggregate(struct icc_node *node)
>> size_t i;
>>
>> qn = node->data;
>> - for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) {
>> + for (i = 0; i < QCOM_SMD_RPM_STATE_NUM; i++) {
>> qn->sum_avg[i] = 0;
>> qn->max_peak[i] = 0;
>> }
>> @@ -275,7 +275,7 @@ static int qcom_icc_bw_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
>> if (!tag)
>> tag = QCOM_ICC_TAG_ALWAYS;
>
> We should replace this with the RPM variant. Also, can you check which
> header/file still includes qcom,icc.h? Don't think we should have it
> included at all for RPM so that referencing the wrong things cannot
> happen.
Nice catch
Konrad
>
> Thanks,
> Stephan
next prev parent reply other threads:[~2023-06-13 9:06 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-12 18:24 [PATCH v3 00/23] Restructure RPM SMD ICC Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 01/23] dt-bindings: interconnect: Add Qcom RPM ICC bindings Konrad Dybcio
2023-06-13 11:11 ` Stephan Gerhold
2023-06-13 11:20 ` Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 02/23] soc: qcom: smd-rpm: Add QCOM_SMD_RPM_STATE_NUM Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 03/23] soc: qcom: smd-rpm: Use tabs for defines Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 04/23] clk: qcom: smd-rpm: Move some RPM resources to the common header Konrad Dybcio
2023-06-12 19:36 ` Stephen Boyd
2023-06-12 18:24 ` [PATCH v3 05/23] soc: qcom: smd-rpm: Move icc_smd_rpm registration to clk-smd-rpm Konrad Dybcio
2023-06-12 19:41 ` Stephen Boyd
2023-06-12 18:24 ` [PATCH v3 06/23] interconnect: qcom: icc-rpm: Introduce keep_alive Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 07/23] interconnect: qcom: icc-rpm: Allow negative QoS offset Konrad Dybcio
2023-06-12 20:27 ` Stephan Gerhold
2023-06-13 12:12 ` Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 08/23] interconnect: qcom: Fold smd-rpm.h into icc-rpm.h Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 09/23] interconnect: qcom: smd-rpm: Add rpmcc handling skeleton code Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 10/23] interconnect: qcom: Add missing headers in icc-rpm.h Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 11/23] interconnect: qcom: Define RPM bus clocks Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 12/23] interconnect: qcom: sdm660: Hook up RPM bus clk definitions Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 13/23] interconnect: qcom: msm8996: " Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 14/23] interconnect: qcom: qcs404: " Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 15/23] interconnect: qcom: msm8939: " Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 16/23] interconnect: qcom: msm8916: " Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 17/23] interconnect: qcom: qcm2290: " Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 18/23] interconnect: qcom: icc-rpm: Control bus rpmcc from icc Konrad Dybcio
2023-06-12 20:54 ` Stephan Gerhold
2023-06-13 11:22 ` Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 19/23] clk: qcom: smd-rpm: Separate out interconnect bus clocks Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 20/23] interconnect: qcom: icc-rpm: Fix bucket number Konrad Dybcio
2023-06-12 20:57 ` Stephan Gerhold
2023-06-13 9:06 ` Konrad Dybcio [this message]
2023-06-12 18:24 ` [PATCH v3 21/23] interconnect: qcom: icc-rpm: Set bandwidth on both contexts Konrad Dybcio
2023-06-12 21:00 ` Stephan Gerhold
2023-06-12 18:24 ` [PATCH v3 22/23] interconnect: qcom: icc-rpm: Set correct bandwidth through RPM bw req Konrad Dybcio
2023-06-12 18:24 ` [PATCH v3 23/23] interconnect: qcom: icc-rpm: Fix bandwidth calculations Konrad Dybcio
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