From: Viresh Kumar <viresh.kumar@linaro.org>
To: Matthias Kaehlcke <mka@chromium.org>
Cc: Amit Kucheria <amit.kucheria@linaro.org>,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
bjorn.andersson@linaro.org, edubezval@gmail.com,
andy.gross@linaro.org, tdas@codeaurora.org, swboyd@chromium.org,
dianders@chromium.org, David Brown <david.brown@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>
Subject: Re: [PATCH v1 7/7] arm64: dts: sdm845: wireup the thermal trip points to cpufreq
Date: Thu, 10 Jan 2019 11:53:59 +0530 [thread overview]
Message-ID: <20190110062359.aea3tic5aw3iuocr@vireshk-i7> (raw)
In-Reply-To: <20190110022217.GX261387@google.com>
On 09-01-19, 18:22, Matthias Kaehlcke wrote:
> Hi Amit,
>
> On Thu, Jan 10, 2019 at 05:30:56AM +0530, Amit Kucheria wrote:
> > Since the big and little cpus are in the same frequency domain, use all
> > of them for mitigation in the cooling-map. At the lower trip points we
> > restrict ourselves to throttling only a few OPPs. At higher trip
> > temperatures, allow ourselves to be throttled to any extent.
> >
> > Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
> > ---
> > arch/arm64/boot/dts/qcom/sdm845.dtsi | 145 +++++++++++++++++++++++++++
> > 1 file changed, 145 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > index 29e823b0caf4..cd6402a9aa64 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > @@ -13,6 +13,7 @@
> > #include <dt-bindings/reset/qcom,sdm845-aoss.h>
> > #include <dt-bindings/soc/qcom,rpmh-rsc.h>
> > #include <dt-bindings/clock/qcom,gcc-sdm845.h>
> > +#include <dt-bindings/thermal/thermal.h>
> >
> > / {
> > interrupt-parent = <&intc>;
> > @@ -99,6 +100,7 @@
> > compatible = "qcom,kryo385";
> > reg = <0x0 0x0>;
> > enable-method = "psci";
> > + #cooling-cells = <2>;
> > next-level-cache = <&L2_0>;
> > L2_0: l2-cache {
> > compatible = "cache";
> > @@ -114,6 +116,7 @@
> > compatible = "qcom,kryo385";
> > reg = <0x0 0x100>;
> > enable-method = "psci";
> > + #cooling-cells = <2>;
>
> This is not needed (also applies to other for other non-policy
> cores). A single cpufreq device is created per frequency domain /
> cluster, hence a single cooling device is registered per cluster,
> which IMO makes sense given that the CPUs of a cluster can't change
> their frequencies independently.
> As per above, there are no cooling devices for CPU1-3 and CPU5-7.
lore.kernel.org/lkml/cover.1527244200.git.viresh.kumar@linaro.org
lore.kernel.org/lkml/b687bb6035fbb010383f4511a206abb4006679fa.1527244201.git.viresh.kumar@linaro.org
--
viresh
next prev parent reply other threads:[~2019-01-10 6:24 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 0:00 [PATCH v1 0/7] Thermal throttling for SDM845 Amit Kucheria
2019-01-10 0:00 ` [PATCH v1 1/7] drivers: thermal: of-thermal: Print name of device node with error Amit Kucheria
2019-01-10 0:15 ` Stephen Boyd
2019-01-10 0:00 ` [PATCH v1 2/7] drivers: cpufreq: Add thermal_cooling_device pointer to struct cpufreq_policy Amit Kucheria
2019-01-10 1:01 ` Matthias Kaehlcke
2019-01-10 0:00 ` [PATCH v1 3/7] cpu_cooling: Add generic driver ready callback Amit Kucheria
2019-01-10 6:14 ` Viresh Kumar
2019-01-10 0:00 ` [PATCH v1 4/7] cpufreq: qcom-hw: Move to device_initcall Amit Kucheria
2019-01-10 6:44 ` Viresh Kumar
2019-01-10 0:00 ` [PATCH v1 5/7] cpufreq: qcom-hw: Register as a cpufreq cooling device Amit Kucheria
2019-01-10 6:12 ` Viresh Kumar
2019-01-10 9:03 ` Amit Kucheria
2019-01-10 9:32 ` Rafael J. Wysocki
2019-01-10 0:00 ` [PATCH v1 6/7] arm64: dts: sdm845: Increase alert trip point to 95 degrees Amit Kucheria
2019-01-10 0:29 ` Stephen Boyd
2019-01-10 17:14 ` Doug Anderson
2019-01-10 20:06 ` Amit Kucheria
2019-01-10 1:15 ` Matthias Kaehlcke
2019-01-10 2:15 ` Matthias Kaehlcke
2019-01-10 19:45 ` Amit Kucheria
2019-01-10 20:00 ` Matthias Kaehlcke
2019-01-11 3:32 ` Viresh Kumar
2019-01-11 10:24 ` Amit Kucheria
2019-01-11 18:30 ` Matthias Kaehlcke
2019-01-10 0:00 ` [PATCH v1 7/7] arm64: dts: sdm845: wireup the thermal trip points to cpufreq Amit Kucheria
2019-01-10 0:28 ` Stephen Boyd
2019-01-10 12:28 ` Amit Kucheria
2019-01-10 2:22 ` Matthias Kaehlcke
2019-01-10 6:23 ` Viresh Kumar [this message]
2019-01-10 18:42 ` Matthias Kaehlcke
2019-01-11 3:46 ` Viresh Kumar
2019-01-11 19:58 ` Matthias Kaehlcke
2019-01-14 5:59 ` Viresh Kumar
2019-01-11 0:30 ` Matthias Kaehlcke
2019-01-11 11:17 ` Amit Kucheria
2019-01-11 20:36 ` Matthias Kaehlcke
2019-01-14 8:22 ` Amit Kucheria
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