From: Trinabh Gupta <trinabh@linux.vnet.ibm.com>
To: Len Brown <lenb@kernel.org>
Cc: arjan@linux.intel.com, peterz@infradead.org,
suresh.b.siddha@intel.com, benh@kernel.crashing.org,
venki@google.com, ak@linux.intel.com,
linux-kernel@vger.kernel.org, sfr@canb.auug.org.au,
xen-devel@lists.xensource.com
Subject: Re: [RFC PATCH V4 3/5] cpuidle: default idle driver for x86
Date: Wed, 23 Mar 2011 15:01:14 +0530 [thread overview]
Message-ID: <4D89BDE2.9040606@linux.vnet.ibm.com> (raw)
In-Reply-To: <alpine.LFD.2.02.1103222304300.10549@x980>
On 03/23/2011 08:43 AM, Len Brown wrote:
> Why is this patch a step forward?
Hi Len,
I have basically moved the code for arch default and mwait
idle from arch/x86/kernel/process.c to a driver. This was
suggested by Venki (https://lkml.org/lkml/2010/10/19/460)
as part of pm_idle cleanup and direct call of
cpuidle_idle_call(). There is not much new code here.
>
>> +obj-$(CONFIG_X86) += default_driver.o
>
> BTW, that's a pretty generic name for an x86 specific idle driver...
>
> I think that on builds that support intel_idle and acpi_idle,
> everything in this file will be unused, unless somebody uses some
> debugging cmdline params that should have been deleted ages ago.
Yes, I agree that the name has to be x86 specific. I think the
routines would be used for pre-nehalem architectures that use
arch default or mwait.
Thanks,
-Trinabh
>
> thanks,
> Len Brown, Intel Open Source Technology Center
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
next prev parent reply other threads:[~2011-03-23 9:31 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20110322123208.28725.30945.stgit@tringupt.in.ibm.com>
[not found] ` <20110322123324.28725.3131.stgit@tringupt.in.ibm.com>
2011-03-22 14:50 ` [RFC PATCH V4 4/5] cpuidle: driver for xen Konrad Rzeszutek Wilk
2011-03-23 9:57 ` Trinabh Gupta
2011-03-24 7:18 ` Len Brown
2011-03-24 12:05 ` Konrad Rzeszutek Wilk
2011-03-25 7:19 ` Len Brown
2011-03-25 14:43 ` Jeremy Fitzhardinge
2011-03-25 14:38 ` [Xen-devel] " Jeremy Fitzhardinge
2011-03-31 2:02 ` Len Brown
2011-03-31 21:26 ` Len Brown
2011-03-31 22:36 ` [Xen-devel] " Jeremy Fitzhardinge
2011-04-01 3:03 ` Len Brown
[not found] ` <20110322123233.28725.92874.stgit@tringupt.in.ibm.com>
[not found] ` <alpine.LFD.2.02.1103222254420.10549@x980>
2011-03-23 9:22 ` [RFC PATCH V4 2/5] cpuidle: list based cpuidle driver registration and selection Trinabh Gupta
2011-03-23 20:51 ` Len Brown
2011-03-24 4:41 ` Len Brown
2011-03-24 14:13 ` Trinabh Gupta
2011-03-24 16:52 ` Vaidyanathan Srinivasan
2011-03-25 7:13 ` Len Brown
2011-03-25 7:05 ` Len Brown
2011-03-25 15:35 ` [Xen-devel] " Konrad Rzeszutek Wilk
2011-03-31 2:25 ` Len Brown
[not found] ` <20110322123244.28725.32435.stgit@tringupt.in.ibm.com>
[not found] ` <alpine.LFD.2.02.1103222304300.10549@x980>
2011-03-23 9:31 ` Trinabh Gupta [this message]
2011-03-24 16:32 ` [RFC PATCH V4 3/5] cpuidle: default idle driver for x86 Vaidyanathan Srinivasan
[not found] ` <20110322123223.28725.21929.stgit@tringupt.in.ibm.com>
[not found] ` <20110323120044.bb8c0ae1.sfr@canb.auug.org.au>
2011-03-23 10:10 ` [RFC PATCH V4 1/5] cpuidle: Remove pm_idle pointer " Trinabh Gupta
[not found] ` <20110322123336.28725.29810.stgit@tringupt.in.ibm.com>
[not found] ` <20110323121458.ec7cdaf9.sfr@canb.auug.org.au>
2011-03-23 10:25 ` [RFC PATCH V4 5/5] cpuidle: cpuidle driver for apm Trinabh Gupta
2011-03-23 20:32 ` Len Brown
2011-03-24 14:28 ` Trinabh Gupta
2011-03-24 16:21 ` Vaidyanathan Srinivasan
2011-03-25 7:24 ` Len Brown
2011-03-25 18:01 ` Vaidyanathan Srinivasan
2011-03-31 2:17 ` cpuidle asymmetry (was Re: [RFC PATCH V4 5/5] cpuidle: cpuidle driver for apm) Len Brown
2011-03-31 13:18 ` Peter Zijlstra
2011-04-01 4:09 ` Len Brown
2011-04-01 8:15 ` Dipankar Sarma
2011-04-01 14:38 ` Arjan van de Ven
2011-04-03 16:18 ` Dipankar Sarma
2011-04-01 14:02 ` Peter Zijlstra
2011-04-04 14:32 ` Dipankar Sarma
2011-04-05 15:01 ` Peter Zijlstra
2011-04-05 15:48 ` Dipankar Sarma
2011-04-01 7:02 ` Trinabh Gupta
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=4D89BDE2.9040606@linux.vnet.ibm.com \
--to=trinabh@linux.vnet.ibm.com \
--cc=ak@linux.intel.com \
--cc=arjan@linux.intel.com \
--cc=benh@kernel.crashing.org \
--cc=lenb@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=sfr@canb.auug.org.au \
--cc=suresh.b.siddha@intel.com \
--cc=venki@google.com \
--cc=xen-devel@lists.xensource.com \
/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;
as well as URLs for NNTP newsgroup(s).