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From: Quentin Perret <qperret@google.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: rjw@rjwysocki.net, rafael@kernel.org, arnd@arndb.de,
	mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org,
	mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com,
	vincent.guittot@linaro.org, linuxppc-dev@lists.ozlabs.org,
	linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	kernel-team@android.com, tkjos@google.com,
	adharmap@codeaurora.org
Subject: Re: [PATCH 1/2] cpufreq: Register governors at core_initcall
Date: Tue, 16 Jun 2020 09:31:28 +0100	[thread overview]
Message-ID: <20200616083128.GB122049@google.com> (raw)
In-Reply-To: <20200616042831.3kazrpvvjhbahoaj@vireshk-i7>

On Tuesday 16 Jun 2020 at 09:58:31 (+0530), Viresh Kumar wrote:
> On 15-06-20, 17:55, Quentin Perret wrote:
> > Currently, most CPUFreq governors are registered at core_initcall time
> > when used as default, and module_init otherwise. In preparation for
> > letting users specify the default governor on the kernel command line,
> > change all of them to use core_initcall unconditionally, as is already
> > the case for schedutil and performance. This will enable us to assume
> > builtin governors have been registered before the builtin CPUFreq
> > drivers probe.
> > 
> > And since all governors now have similar init/exit patterns, introduce
> > two new macros cpufreq_governor_{init,exit}() to factorize the code.
> > 
> > Signed-off-by: Quentin Perret <qperret@google.com>
> > ---
> > Note: I couldn't boot-test the change to spudemand, by lack of hardware.
> > But I can confirm cell_defconfig compiles just fine.
> > ---
> >  .../platforms/cell/cpufreq_spudemand.c        | 26 ++-----------------
> >  drivers/cpufreq/cpufreq_conservative.c        | 22 ++++------------
> >  drivers/cpufreq/cpufreq_ondemand.c            | 24 +++++------------
> >  drivers/cpufreq/cpufreq_performance.c         | 14 ++--------
> >  drivers/cpufreq/cpufreq_powersave.c           | 18 +++----------
> >  drivers/cpufreq/cpufreq_userspace.c           | 18 +++----------
> >  include/linux/cpufreq.h                       | 14 ++++++++++
> >  kernel/sched/cpufreq_schedutil.c              |  6 +----
> >  8 files changed, 36 insertions(+), 106 deletions(-)
> 
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

Thanks!
Quentin

WARNING: multiple messages have this Message-ID (diff)
From: Quentin Perret <qperret@google.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: juri.lelli@redhat.com, kernel-team@android.com,
	vincent.guittot@linaro.org, arnd@arndb.de, rafael@kernel.org,
	peterz@infradead.org, adharmap@codeaurora.org,
	linux-pm@vger.kernel.org, rjw@rjwysocki.net,
	linux-kernel@vger.kernel.org, mingo@redhat.com, paulus@samba.org,
	linuxppc-dev@lists.ozlabs.org, tkjos@google.com
Subject: Re: [PATCH 1/2] cpufreq: Register governors at core_initcall
Date: Tue, 16 Jun 2020 09:31:28 +0100	[thread overview]
Message-ID: <20200616083128.GB122049@google.com> (raw)
In-Reply-To: <20200616042831.3kazrpvvjhbahoaj@vireshk-i7>

On Tuesday 16 Jun 2020 at 09:58:31 (+0530), Viresh Kumar wrote:
> On 15-06-20, 17:55, Quentin Perret wrote:
> > Currently, most CPUFreq governors are registered at core_initcall time
> > when used as default, and module_init otherwise. In preparation for
> > letting users specify the default governor on the kernel command line,
> > change all of them to use core_initcall unconditionally, as is already
> > the case for schedutil and performance. This will enable us to assume
> > builtin governors have been registered before the builtin CPUFreq
> > drivers probe.
> > 
> > And since all governors now have similar init/exit patterns, introduce
> > two new macros cpufreq_governor_{init,exit}() to factorize the code.
> > 
> > Signed-off-by: Quentin Perret <qperret@google.com>
> > ---
> > Note: I couldn't boot-test the change to spudemand, by lack of hardware.
> > But I can confirm cell_defconfig compiles just fine.
> > ---
> >  .../platforms/cell/cpufreq_spudemand.c        | 26 ++-----------------
> >  drivers/cpufreq/cpufreq_conservative.c        | 22 ++++------------
> >  drivers/cpufreq/cpufreq_ondemand.c            | 24 +++++------------
> >  drivers/cpufreq/cpufreq_performance.c         | 14 ++--------
> >  drivers/cpufreq/cpufreq_powersave.c           | 18 +++----------
> >  drivers/cpufreq/cpufreq_userspace.c           | 18 +++----------
> >  include/linux/cpufreq.h                       | 14 ++++++++++
> >  kernel/sched/cpufreq_schedutil.c              |  6 +----
> >  8 files changed, 36 insertions(+), 106 deletions(-)
> 
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

Thanks!
Quentin

  reply	other threads:[~2020-06-16  8:31 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-15 16:55 [PATCH 0/2] cpufreq: Specify the default governor on command line Quentin Perret
2020-06-15 16:55 ` Quentin Perret
2020-06-15 16:55 ` [PATCH 1/2] cpufreq: Register governors at core_initcall Quentin Perret
2020-06-15 16:55   ` Quentin Perret
2020-06-16  4:28   ` Viresh Kumar
2020-06-16  4:28     ` Viresh Kumar
2020-06-16  8:31     ` Quentin Perret [this message]
2020-06-16  8:31       ` Quentin Perret
2020-06-15 16:55 ` [PATCH 2/2] cpufreq: Specify default governor on command line Quentin Perret
2020-06-15 16:55   ` Quentin Perret
2020-06-15 17:41   ` Quentin Perret
2020-06-15 17:41     ` Quentin Perret
2020-06-16  4:31   ` Viresh Kumar
2020-06-16  4:31     ` Viresh Kumar
2020-06-16  8:31     ` Quentin Perret
2020-06-16  8:31       ` Quentin Perret
2020-06-16  9:27       ` Viresh Kumar
2020-06-16  9:27         ` Viresh Kumar
2020-06-16  9:48         ` Quentin Perret
2020-06-16  9:48           ` Quentin Perret
2020-06-16  9:54           ` Viresh Kumar
2020-06-16  9:54             ` Viresh Kumar
2020-06-16  9:56             ` Quentin Perret
2020-06-16  9:56               ` Quentin Perret
2020-06-20 14:36   ` [cpufreq] d83f959b5e: aim7.jobs-per-min -30.2% regression kernel test robot
2020-06-20 14:36     ` kernel test robot
2020-06-22  0:54   ` [cpufreq] d83f959b5e: kmsg.cpufreq:cpufreq_online:Failed_to_initialize_policy_for_cpu:#(-#) kernel test robot
2020-06-22  0:54     ` kernel test robot
2020-06-22  0:54     ` kernel test robot
2020-06-23  9:25     ` Quentin Perret
2020-06-23  9:25       ` Quentin Perret
2020-06-23  9:25       ` Quentin Perret

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