From: Steev Klimaszewski <steev@kali.org>
To: Lukasz Luba <lukasz.luba@arm.com>
Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, sudeep.holla@arm.com,
will@kernel.org, catalin.marinas@arm.com, linux@armlinux.org.uk,
gregkh@linuxfoundation.org, rafael@kernel.org,
viresh.kumar@linaro.org, amitk@kernel.org,
daniel.lezcano@linaro.org, amit.kachhap@gmail.com,
thara.gopinath@linaro.org, bjorn.andersson@linaro.org,
agross@kernel.org
Subject: Re: [PATCH v3 0/5] Refactor thermal pressure update to avoid code duplication
Date: Fri, 5 Nov 2021 12:33:20 -0500 [thread overview]
Message-ID: <9d533b6e-a81c-e823-fa6f-61fdea92fa65@kali.org> (raw)
In-Reply-To: <3cba148a-7077-7b6b-f131-dc65045aa348@arm.com>
Hi,
On 11/5/21 11:26 AM, Lukasz Luba wrote:
> Hi Steev,
>
> On 11/5/21 3:39 PM, Steev Klimaszewski wrote:
>> Hi Lukasz,
>>
>
> [snip]
>
>> I've been testing this patchset on the Lenovo Yoga C630, and today
>> while compiling alacritty and running an apt-get full-upgrade, I
>> found the following in dmesg output:
>
> Thank you for testing and sending feedback!
>
> Are you using a mainline kernel or you applied on some vendor production
> kernel this patch set? I need to exclude a different code base
> from the equation, especially to the arch_topology.c init code.
>
This is stabe 5.15.0 tree with ~72 (including your 6 patches on top
(including the below as a patch). You can find it at
https://github.com/steev/linux/commits/linux-5.15.y - the vast majority
are just various fixups for sdm845/sdm850 for the Lenovo Yoga (or crypto
since I'd like to see the crypto unit working).
I did grep through my logs and it appears that this started after I
moved from v2 to v3 - I'd tested v2 and it didn't show this.
[snip]
> [snip]
>
> That's interesting why we hit this. I should have added info about
> those two values, which are compared.
>
> Could you make this change and try it again, please?
> We would know the problematic values, which triggered this.
> ---------------------8<-----------------------------------
> diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
> index db18d79065fe..0d8db0927041 100644
> --- a/drivers/base/arch_topology.c
> +++ b/drivers/base/arch_topology.c
> @@ -185,8 +185,11 @@ void topology_update_thermal_pressure(const
> struct cpumask *cpus,
> /* Convert to MHz scale which is used in 'freq_factor' */
> capped_freq /= 1000;
>
> - if (WARN_ON(max_freq < capped_freq))
> + if (max_freq < capped_freq) {
> + pr_warn("THERMAL_PRESSURE: max_freq (%lu) <
> capped_freq (%lu) for CPUs [%*pbl]\n",
> + max_freq, capped_freq, cpumask_pr_args(cpus));
> return;
> + }
>
> capacity = mult_frac(capped_freq, max_capacity, max_freq);
>
> ------------------------------>8---------------------------
Applying this to the above kernel.. will test...
>
> Could you also dump for me the cpufreq and capacity sysfs content?
> $ grep . /sys/devices/system/cpu/cpu*/cpufreq/*
/sys/devices/system/cpu/cpu0/cpufreq/affected_cpus:0 1 2 3
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq:300000
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq:1766400
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq:300000
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu0/cpufreq/related_cpus:0 1 2 3
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies:300000
403200 480000 576000 652800 748800 825600 902400 979200 1056000 1132800
1228800 1324800 1420800 1516800 1612800 1689600 1766400
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors:ondemand
conservative powersave userspace performance schedutil
/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq:300000
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:qcom-cpufreq-hw
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:schedutil
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq:1766400
/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq:300000
/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed:<unsupported>
/sys/devices/system/cpu/cpu1/cpufreq/affected_cpus:0 1 2 3
/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_cur_freq:300000
/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_max_freq:1766400
/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_min_freq:300000
/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu1/cpufreq/related_cpus:0 1 2 3
/sys/devices/system/cpu/cpu1/cpufreq/scaling_available_frequencies:300000
403200 480000 576000 652800 748800 825600 902400 979200 1056000 1132800
1228800 1324800 1420800 1516800 1612800 1689600 1766400
/sys/devices/system/cpu/cpu1/cpufreq/scaling_available_governors:ondemand
conservative powersave userspace performance schedutil
/sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq:300000
/sys/devices/system/cpu/cpu1/cpufreq/scaling_driver:qcom-cpufreq-hw
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor:schedutil
/sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq:1766400
/sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq:300000
/sys/devices/system/cpu/cpu1/cpufreq/scaling_setspeed:<unsupported>
/sys/devices/system/cpu/cpu2/cpufreq/affected_cpus:0 1 2 3
/sys/devices/system/cpu/cpu2/cpufreq/cpuinfo_cur_freq:300000
/sys/devices/system/cpu/cpu2/cpufreq/cpuinfo_max_freq:1766400
/sys/devices/system/cpu/cpu2/cpufreq/cpuinfo_min_freq:300000
/sys/devices/system/cpu/cpu2/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu2/cpufreq/related_cpus:0 1 2 3
/sys/devices/system/cpu/cpu2/cpufreq/scaling_available_frequencies:300000
403200 480000 576000 652800 748800 825600 902400 979200 1056000 1132800
1228800 1324800 1420800 1516800 1612800 1689600 1766400
/sys/devices/system/cpu/cpu2/cpufreq/scaling_available_governors:ondemand
conservative powersave userspace performance schedutil
/sys/devices/system/cpu/cpu2/cpufreq/scaling_cur_freq:300000
/sys/devices/system/cpu/cpu2/cpufreq/scaling_driver:qcom-cpufreq-hw
/sys/devices/system/cpu/cpu2/cpufreq/scaling_governor:schedutil
/sys/devices/system/cpu/cpu2/cpufreq/scaling_max_freq:1766400
/sys/devices/system/cpu/cpu2/cpufreq/scaling_min_freq:300000
/sys/devices/system/cpu/cpu2/cpufreq/scaling_setspeed:<unsupported>
/sys/devices/system/cpu/cpu3/cpufreq/affected_cpus:0 1 2 3
/sys/devices/system/cpu/cpu3/cpufreq/cpuinfo_cur_freq:300000
/sys/devices/system/cpu/cpu3/cpufreq/cpuinfo_max_freq:1766400
/sys/devices/system/cpu/cpu3/cpufreq/cpuinfo_min_freq:300000
/sys/devices/system/cpu/cpu3/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu3/cpufreq/related_cpus:0 1 2 3
/sys/devices/system/cpu/cpu3/cpufreq/scaling_available_frequencies:300000
403200 480000 576000 652800 748800 825600 902400 979200 1056000 1132800
1228800 1324800 1420800 1516800 1612800 1689600 1766400
/sys/devices/system/cpu/cpu3/cpufreq/scaling_available_governors:ondemand
conservative powersave userspace performance schedutil
/sys/devices/system/cpu/cpu3/cpufreq/scaling_cur_freq:300000
/sys/devices/system/cpu/cpu3/cpufreq/scaling_driver:qcom-cpufreq-hw
/sys/devices/system/cpu/cpu3/cpufreq/scaling_governor:schedutil
/sys/devices/system/cpu/cpu3/cpufreq/scaling_max_freq:1766400
/sys/devices/system/cpu/cpu3/cpufreq/scaling_min_freq:300000
/sys/devices/system/cpu/cpu3/cpufreq/scaling_setspeed:<unsupported>
/sys/devices/system/cpu/cpu4/cpufreq/affected_cpus:4 5 6 7
/sys/devices/system/cpu/cpu4/cpufreq/cpuinfo_cur_freq:1920000
/sys/devices/system/cpu/cpu4/cpufreq/cpuinfo_max_freq:2956800
/sys/devices/system/cpu/cpu4/cpufreq/cpuinfo_min_freq:825600
/sys/devices/system/cpu/cpu4/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu4/cpufreq/related_cpus:4 5 6 7
/sys/devices/system/cpu/cpu4/cpufreq/scaling_available_frequencies:825600
902400 979200 1056000 1209600 1286400 1363200 1459200 1536000 1612800
1689600 1766400 1843200 1920000 1996800 2092800 2169600 2246400 2323200
2400000 2476800 2553600 2649600 2745600 2841600
/sys/devices/system/cpu/cpu4/cpufreq/scaling_available_governors:ondemand
conservative powersave userspace performance schedutil
/sys/devices/system/cpu/cpu4/cpufreq/scaling_boost_frequencies:2956800
/sys/devices/system/cpu/cpu4/cpufreq/scaling_cur_freq:1920000
/sys/devices/system/cpu/cpu4/cpufreq/scaling_driver:qcom-cpufreq-hw
/sys/devices/system/cpu/cpu4/cpufreq/scaling_governor:schedutil
/sys/devices/system/cpu/cpu4/cpufreq/scaling_max_freq:2841600
/sys/devices/system/cpu/cpu4/cpufreq/scaling_min_freq:825600
/sys/devices/system/cpu/cpu4/cpufreq/scaling_setspeed:<unsupported>
/sys/devices/system/cpu/cpu5/cpufreq/affected_cpus:4 5 6 7
/sys/devices/system/cpu/cpu5/cpufreq/cpuinfo_cur_freq:1996800
/sys/devices/system/cpu/cpu5/cpufreq/cpuinfo_max_freq:2956800
/sys/devices/system/cpu/cpu5/cpufreq/cpuinfo_min_freq:825600
/sys/devices/system/cpu/cpu5/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu5/cpufreq/related_cpus:4 5 6 7
/sys/devices/system/cpu/cpu5/cpufreq/scaling_available_frequencies:825600
902400 979200 1056000 1209600 1286400 1363200 1459200 1536000 1612800
1689600 1766400 1843200 1920000 1996800 2092800 2169600 2246400 2323200
2400000 2476800 2553600 2649600 2745600 2841600
/sys/devices/system/cpu/cpu5/cpufreq/scaling_available_governors:ondemand
conservative powersave userspace performance schedutil
/sys/devices/system/cpu/cpu5/cpufreq/scaling_boost_frequencies:2956800
/sys/devices/system/cpu/cpu5/cpufreq/scaling_cur_freq:1996800
/sys/devices/system/cpu/cpu5/cpufreq/scaling_driver:qcom-cpufreq-hw
/sys/devices/system/cpu/cpu5/cpufreq/scaling_governor:schedutil
/sys/devices/system/cpu/cpu5/cpufreq/scaling_max_freq:2841600
/sys/devices/system/cpu/cpu5/cpufreq/scaling_min_freq:825600
/sys/devices/system/cpu/cpu5/cpufreq/scaling_setspeed:<unsupported>
/sys/devices/system/cpu/cpu6/cpufreq/affected_cpus:4 5 6 7
/sys/devices/system/cpu/cpu6/cpufreq/cpuinfo_cur_freq:1996800
/sys/devices/system/cpu/cpu6/cpufreq/cpuinfo_max_freq:2956800
/sys/devices/system/cpu/cpu6/cpufreq/cpuinfo_min_freq:825600
/sys/devices/system/cpu/cpu6/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu6/cpufreq/related_cpus:4 5 6 7
/sys/devices/system/cpu/cpu6/cpufreq/scaling_available_frequencies:825600
902400 979200 1056000 1209600 1286400 1363200 1459200 1536000 1612800
1689600 1766400 1843200 1920000 1996800 2092800 2169600 2246400 2323200
2400000 2476800 2553600 2649600 2745600 2841600
/sys/devices/system/cpu/cpu6/cpufreq/scaling_available_governors:ondemand
conservative powersave userspace performance schedutil
/sys/devices/system/cpu/cpu6/cpufreq/scaling_boost_frequencies:2956800
/sys/devices/system/cpu/cpu6/cpufreq/scaling_cur_freq:1996800
/sys/devices/system/cpu/cpu6/cpufreq/scaling_driver:qcom-cpufreq-hw
/sys/devices/system/cpu/cpu6/cpufreq/scaling_governor:schedutil
/sys/devices/system/cpu/cpu6/cpufreq/scaling_max_freq:2841600
/sys/devices/system/cpu/cpu6/cpufreq/scaling_min_freq:825600
/sys/devices/system/cpu/cpu6/cpufreq/scaling_setspeed:<unsupported>
/sys/devices/system/cpu/cpu7/cpufreq/affected_cpus:4 5 6 7
/sys/devices/system/cpu/cpu7/cpufreq/cpuinfo_cur_freq:1996800
/sys/devices/system/cpu/cpu7/cpufreq/cpuinfo_max_freq:2956800
/sys/devices/system/cpu/cpu7/cpufreq/cpuinfo_min_freq:825600
/sys/devices/system/cpu/cpu7/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu7/cpufreq/related_cpus:4 5 6 7
/sys/devices/system/cpu/cpu7/cpufreq/scaling_available_frequencies:825600
902400 979200 1056000 1209600 1286400 1363200 1459200 1536000 1612800
1689600 1766400 1843200 1920000 1996800 2092800 2169600 2246400 2323200
2400000 2476800 2553600 2649600 2745600 2841600
/sys/devices/system/cpu/cpu7/cpufreq/scaling_available_governors:ondemand
conservative powersave userspace performance schedutil
/sys/devices/system/cpu/cpu7/cpufreq/scaling_boost_frequencies:2956800
/sys/devices/system/cpu/cpu7/cpufreq/scaling_cur_freq:1996800
/sys/devices/system/cpu/cpu7/cpufreq/scaling_driver:qcom-cpufreq-hw
/sys/devices/system/cpu/cpu7/cpufreq/scaling_governor:schedutil
/sys/devices/system/cpu/cpu7/cpufreq/scaling_max_freq:2841600
/sys/devices/system/cpu/cpu7/cpufreq/scaling_min_freq:825600
/sys/devices/system/cpu/cpu7/cpufreq/scaling_setspeed:<unsupported>
> $ grep . /sys/devices/system/cpu/cpu*/cpu_capacity
/sys/devices/system/cpu/cpu0/cpu_capacity:377
/sys/devices/system/cpu/cpu1/cpu_capacity:377
/sys/devices/system/cpu/cpu2/cpu_capacity:377
/sys/devices/system/cpu/cpu3/cpu_capacity:377
/sys/devices/system/cpu/cpu4/cpu_capacity:1024
/sys/devices/system/cpu/cpu5/cpu_capacity:1024
/sys/devices/system/cpu/cpu6/cpu_capacity:1024
/sys/devices/system/cpu/cpu7/cpu_capacity:1024
In taking a look at cpufreq-info, one thing I noticed is that even
though I have 1 in /sys/devices/system/cpu/cpufreq/boost, I am *never*
hitting the 2.96GHz now
cpufreq stats: 826 MHz:59.14%, 902 MHz:0.15%, 979 MHz:0.18%, 1.06
GHz:0.11%, 1.21 GHz:0.49%, 1.29 GHz:0.26%, 1.36 GHz:0.12%, 1.46
GHz:0.23%, 1.54 GHz:0.10%, 1.61 GHz:0.14%, 1.69 GHz:0.09%, 1.77
GHz:0.28%, 1.84 GHz:0.64%, 1.92 GHz:0.23%, 2.00 GHz:0.05%, 2.09
GHz:0.05%, 2.17 GHz:0.03%, 2.25 GHz:0.03%, 2.32 GHz:0.03%, 2.40
GHz:0.03%, 2.48 GHz:0.02%, 2.55 GHz:0.02%, 2.65 GHz:0.03%, 2.75
GHz:0.03%, 2.84 GHz:37.53%, 2.96 GHz:0.00% (20854)
Aaaand it looks like that is part of the deal - with your patch from
above applied, we get:
[ 22.487268] THERMAL_PRESSURE: max_freq(2841) < capped_freq(2956) for
CPUs [4-7]
[ 22.487313] THERMAL_PRESSURE: max_freq(2841) < capped_freq(2956) for
CPUs [4-7]
[ 22.508642] THERMAL_PRESSURE: max_freq(2841) < capped_freq(2956) for
CPUs [4-7]
[ 22.552273] THERMAL_PRESSURE: max_freq(2841) < capped_freq(2956) for
CPUs [4-7]
So, we're not able to hit boost frequencies with this applied?
Thank you for the fast response!
-- steev
next prev parent reply other threads:[~2021-11-05 17:33 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-03 16:10 [PATCH v3 0/5] Refactor thermal pressure update to avoid code duplication Lukasz Luba
2021-11-03 16:10 ` [PATCH v3 1/5] arch_topology: Introduce thermal pressure update function Lukasz Luba
2021-11-03 16:10 ` [PATCH v3 2/5] thermal: cpufreq_cooling: Use new " Lukasz Luba
2021-11-03 16:10 ` [PATCH v3 3/5] cpufreq: qcom-cpufreq-hw: Update offline CPUs per-cpu thermal pressure Lukasz Luba
2021-11-03 16:10 ` [PATCH v3 4/5] cpufreq: qcom-cpufreq-hw: Use new thermal pressure update function Lukasz Luba
2021-11-05 19:12 ` Thara Gopinath
2021-11-08 14:12 ` Lukasz Luba
2021-11-08 21:23 ` Thara Gopinath
2021-11-09 8:46 ` Lukasz Luba
2021-11-03 16:10 ` [PATCH v3 5/5] arch_topology: Remove unused topology_set_thermal_pressure() and related Lukasz Luba
2021-11-05 15:39 ` [PATCH v3 0/5] Refactor thermal pressure update to avoid code duplication Steev Klimaszewski
2021-11-05 16:26 ` Lukasz Luba
2021-11-05 17:33 ` Steev Klimaszewski [this message]
2021-11-05 19:18 ` Thara Gopinath
2021-11-05 19:51 ` Steev Klimaszewski
2021-11-05 21:06 ` Thara Gopinath
2021-11-05 22:46 ` Steev Klimaszewski
2021-11-08 10:44 ` Lukasz Luba
2021-11-08 14:11 ` Thara Gopinath
2021-11-08 15:22 ` Steev Klimaszewski
2021-11-08 21:31 ` Thara Gopinath
2021-11-08 23:21 ` Steev Klimaszewski
2021-11-09 8:29 ` Lukasz Luba
2021-11-09 15:46 ` Steev Klimaszewski
2021-11-09 16:22 ` Lukasz Luba
2021-11-09 18:13 ` Lukasz Luba
2021-11-09 19:09 ` Steev Klimaszewski
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