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Message-ID: <de53f559-0e12-d754-52e7-9ee3bee5ffa6@arm.com>
Date: Mon, 21 Aug 2023 16:22:31 +0100
From: Lukasz Luba <lukasz.luba@....com>
To: Dietmar Eggemann <dietmar.eggemann@....com>
Cc: rui.zhang@...el.com, amit.kucheria@...durent.com,
amit.kachhap@...il.com, daniel.lezcano@...aro.org,
viresh.kumar@...aro.org, len.brown@...el.com, pavel@....cz,
Pierre.Gondois@....com, ionela.voinescu@....com,
mhiramat@...nel.org, linux-pm@...r.kernel.org, rafael@...nel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 06/12] PM: EM: Refactor struct em_perf_domain and add
default_table
Hi Dietmar,
On 8/16/23 14:04, Dietmar Eggemann wrote:
> On 21/07/2023 17:50, Lukasz Luba wrote:
>> The Energy Model is going to support runtime modifications. Refactor old
>> implementation which accessed struct em_perf_state and introduce
>> em_perf_domain::default_table to clean up the design. This new field
>> will help to better distinguish 2 performance state tables.
>>
>> Update all drivers or frameworks which used the old field:
>> em_perf_domain::table and now should use em_perf_domain::default_table.
>>
>
> This doesn't compile:
>
> SYNC include/config/auto.conf.cmd
> UPD include/config/kernel.release
> UPD include/generated/utsrelease.h
> CC arch/arm64/kernel/asm-offsets.s
> In file included from ./include/linux/device.h:16,
> from ./include/linux/acpi.h:14,
> from ./include/acpi/apei.h:9,
> from ./include/acpi/ghes.h:5,
> from ./include/linux/arm_sdei.h:8,
> from arch/arm64/kernel/asm-offsets.c:10:
> ./include/linux/energy_model.h: In function ‘em_cpu_energy’:
> ./include/linux/energy_model.h:256:10: error: ‘struct em_perf_domain’ has no member named ‘table’
> 256 | ps = &pd->table[pd->nr_perf_states - 1];
> | ^~
> ./include/linux/energy_model.h:266:34: error: ‘struct em_perf_domain’ has no member named ‘table’
> 266 | i = em_pd_get_efficient_state(pd->table, pd->nr_perf_states, freq,
> | ^~
> ./include/linux/energy_model.h:268:10: error: ‘struct em_perf_domain’ has no member named ‘table’
> 268 | ps = &pd->table[i];
> | ^~
> make[2]: *** [scripts/Makefile.build:116: arch/arm64/kernel/asm-offsets.s] Error 1
> make[1]: *** [/opt/git/kernel_org/Makefile:1275: prepare0] Error 2
> make: *** [Makefile:234: __sub-make] Error 2
>
> In v2 this patch was much later in the set.
>
>
>
Yes, you are right. It didn't trigger somehow in my build testing
probably due to my ccache or missed step and built+test the whole set.
My apologies for that, I'll double check that next time.
Regards,
Lukasz
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