From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Frank Rowand <frank.rowand@am.sony.com>
Cc: Ingo Molnar <mingo@elte.hu>, "Rafael J. Wysocki" <rjw@sisk.pl>,
Linus Torvalds <torvalds@linux-foundation.org>,
Len Brown <len.brown@intel.com>,
Alan Stern <stern@rowland.harvard.edu>,
linux-pm@lists.linux-foundation.org,
linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
linux-embedded@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] Remove CONFIG_PM altogether, enable power management all the time
Date: Wed, 9 Feb 2011 11:58:37 +0000 [thread overview]
Message-ID: <20110209115837.GA12333@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <20110209114137.GA10163@opensource.wolfsonmicro.com>
On Wed, Feb 09, 2011 at 11:41:37AM +0000, Mark Brown wrote:
> Hrm, that's pretty surprising. It'd be interesting to know how much of
> that is due to the PM core itself and how much of that is from drivers.
> For the drivers CONFIG_PM isn't really the option they should be using
> in the first place - they mostly want some combination of PM_SLEEP and
> PM_RUNTIME for the specific functionality. I'm running some checks now.
OK, on ARM with slightly more than an allnoconfig (allnoconfig itself
wouldn't build) I see:
text data bss dec hex filename
1361476 71360 167320 1600156 186a9c vmlinux.nopm
1364228 71520 167480 1603228 18769c vmlinux
2752 160 160 3072
so 3K from CONFIG_PM there, mostly from the ARM VIC management code
which I suspect really wants to be under one of the more specific PM
options, though obviously this comes back to the issue with bitrotted
ifdefs for PM whcih pervades the kernel.
next prev parent reply other threads:[~2011-02-09 11:58 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-07 12:22 [PATCH] PM: Hide CONFIG_PM from users Mark Brown
2011-02-07 12:40 ` Geert Uytterhoeven
2011-02-07 13:26 ` Mark Brown
2011-02-07 12:48 ` Ingo Molnar
2011-02-07 13:09 ` Mark Brown
2011-02-07 14:13 ` Stephen Rothwell
2011-02-07 14:18 ` Mark Brown
2011-02-07 14:44 ` Stephen Rothwell
2011-02-07 14:50 ` Mark Brown
2011-02-07 15:00 ` Geert Uytterhoeven
2011-02-07 15:10 ` Stephen Rothwell
2011-02-07 15:19 ` Stephen Rothwell
2011-02-07 15:21 ` Mark Brown
2011-02-07 15:36 ` Alan Stern
2011-02-07 15:49 ` Mark Brown
2011-02-07 19:16 ` Rafael J. Wysocki
2011-02-08 1:17 ` Ray Lee
2011-02-08 11:18 ` Mark Brown
2011-02-07 19:14 ` Rafael J. Wysocki
2011-02-07 19:30 ` Mark Brown
2011-02-07 19:46 ` Rafael J. Wysocki
2011-02-07 20:18 ` Mark Brown
2011-02-07 21:15 ` Rafael J. Wysocki
2011-02-07 21:47 ` Dmitry Torokhov
2011-02-07 22:00 ` Rafael J. Wysocki
2011-02-07 22:23 ` Dmitry Torokhov
2011-02-07 23:05 ` Rafael J. Wysocki
2011-02-08 0:50 ` Dmitry Torokhov
2011-02-08 9:23 ` Rafael J. Wysocki
2011-02-08 16:48 ` Paul Mundt
2011-02-08 12:12 ` Mark Brown
2011-02-08 12:21 ` [PATCH] Remove CONFIG_PM altogether, enable power management all the time Ingo Molnar
2011-02-08 21:18 ` [PATCH 0/5] " Rafael J. Wysocki
2011-02-08 21:20 ` [PATCH 1/5] ACPI / PM: Move references to pm_flags into sleep.c Rafael J. Wysocki
2011-02-08 23:40 ` Linus Torvalds
2011-02-09 0:37 ` Rafael J. Wysocki
2011-02-09 1:04 ` Linus Torvalds
2011-02-08 21:21 ` [PATCH 2/5] PM: Make CONFIG_PM depend on (CONFIG_PM_SLEEP || CONFIG_PM_RUNTIME) Rafael J. Wysocki
2011-02-08 21:21 ` [PATCH 3/5] PM: Reorder power management Kconfig options Rafael J. Wysocki
2011-02-08 21:22 ` [PATCH 4/5] PM: Replace CONFIG_PM_OPS with CONFIG_PM Rafael J. Wysocki
2011-02-08 21:23 ` [PATCH 5/5] PM: Clean up Kconfig dependencies Rafael J. Wysocki
2011-02-08 23:43 ` Linus Torvalds
2011-02-10 23:32 ` [Updated][PATCH 5/5] PM: Clean up PM_TRACE dependencies and drop unnecessary Kconfig option Rafael J. Wysocki
2011-02-08 23:35 ` [PATCH] Remove CONFIG_PM altogether, enable power management all the time Frank Rowand
2011-02-09 11:41 ` Mark Brown
2011-02-09 11:58 ` Mark Brown [this message]
2011-02-09 17:07 ` Rafael J. Wysocki
2011-02-09 18:31 ` Frank Rowand
2011-02-09 18:40 ` Mark Brown
2011-02-09 19:00 ` Frank Rowand
2011-02-09 19:25 ` Mark Brown
2011-02-09 19:53 ` Tim Bird
2011-02-09 19:59 ` Mark Brown
2011-02-09 20:09 ` Alan Stern
2011-02-09 20:10 ` Mark Brown
2011-02-08 23:35 ` Tim Bird
2011-02-09 2:41 ` Ingo Molnar
2011-02-08 2:52 ` [PATCH] PM: Hide CONFIG_PM from users Frank Rowand
2011-02-08 14:15 ` Mark Brown
2011-02-08 14:29 ` Pavel Machek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110209115837.GA12333@opensource.wolfsonmicro.com \
--to=broonie@opensource.wolfsonmicro.com \
--cc=akpm@linux-foundation.org \
--cc=dmitry.torokhov@gmail.com \
--cc=frank.rowand@am.sony.com \
--cc=len.brown@intel.com \
--cc=linux-embedded@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@lists.linux-foundation.org \
--cc=mingo@elte.hu \
--cc=rjw@sisk.pl \
--cc=stern@rowland.harvard.edu \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox