| Message ID | 20230726-topic-icc_coeff-v1-2-31616960818c@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Fix up icc clock rate calculation on some platforms | expand |
On 26.07.2023 19:18, Stephan Gerhold wrote: > On Wed, Jul 26, 2023 at 06:25:44PM +0200, Konrad Dybcio wrote: >> Some buses need additional manual adjustments atop the usual >> calculations. Fill in the missing coefficients. >> >> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> > > What about the funny util-fact/vrail-comp on the mas-apps-proc node > downstream? Can't see it neither on msm-5.4 (with the icc API) nor in the 4.19 (msmbus) device tree. Konrad
On 26.07.2023 19:46, Konrad Dybcio wrote: > On 26.07.2023 19:26, Stephan Gerhold wrote: >> On Wed, Jul 26, 2023 at 07:20:27PM +0200, Konrad Dybcio wrote: >>> On 26.07.2023 19:18, Stephan Gerhold wrote: >>>> On Wed, Jul 26, 2023 at 06:25:44PM +0200, Konrad Dybcio wrote: >>>>> Some buses need additional manual adjustments atop the usual >>>>> calculations. Fill in the missing coefficients. >>>>> >>>>> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> >>>> >>>> What about the funny util-fact/vrail-comp on the mas-apps-proc node >>>> downstream? >>> Can't see it neither on msm-5.4 (with the icc API) nor in the 4.19 (msmbus) >>> device tree. >>> >> >> Not sure where to get up-to-date device trees nowadays. The AOSP repo >> I was looking at has this commit where it was added: >> https://android.googlesource.com/kernel/msm-extra/devicetree/+/02f8c342b23c20a5cf967df649814be37a08227c%5E%21/#F0 > Oh right, take a look at this one: > > https://git.codelinaro.org/clo/la/kernel/msm-4.14/-/commit/201df022706e100cef8d28983c6a7b883fcaec5a > > I guess I'll need to update the icc driver then. Moreover, this having vrail-comp = 96, means I'll have to go with the wrecked downstream way of *(100/(percent)) instead of *(percent/100)... I also noticed that sm6125 makes very heavy use of per-node clocks.. Konrad
diff --git a/drivers/interconnect/qcom/qcm2290.c b/drivers/interconnect/qcom/qcm2290.c index 3c3b24264a5b..457e5713ae43 100644 --- a/drivers/interconnect/qcom/qcm2290.c +++ b/drivers/interconnect/qcom/qcm2290.c @@ -1198,6 +1198,7 @@ static const struct qcom_icc_desc qcm2290_bimc = { .regmap_cfg = &qcm2290_bimc_regmap_config, /* M_REG_BASE() in vendor msm_bus_bimc_adhoc driver */ .qos_offset = 0x8000, + .ab_percent = 153, }; static struct qcom_icc_node * const qcm2290_cnoc_nodes[] = { @@ -1324,6 +1325,7 @@ static const struct qcom_icc_desc qcm2290_mmnrt_virt = { .bus_clk_desc = &mmaxi_0_clk, .regmap_cfg = &qcm2290_snoc_regmap_config, .qos_offset = 0x15000, + .ab_percent = 142, }; static struct qcom_icc_node * const qcm2290_mmrt_virt_nodes[] = { @@ -1339,6 +1341,7 @@ static const struct qcom_icc_desc qcm2290_mmrt_virt = { .bus_clk_desc = &mmaxi_1_clk, .regmap_cfg = &qcm2290_snoc_regmap_config, .qos_offset = 0x15000, + .ab_percent = 139, }; static const struct of_device_id qcm2290_noc_of_match[] = {
Some buses need additional manual adjustments atop the usual calculations. Fill in the missing coefficients. Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> --- drivers/interconnect/qcom/qcm2290.c | 3 +++ 1 file changed, 3 insertions(+)