linux-kernel - Re: [PATCH v3 0/6] ARM/ARM64 architected timer updates

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Date:	Wed, 14 Aug 2013 12:51:09 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@....com>
CC:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Will Deacon <Will.Deacon@....com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH v3 0/6] ARM/ARM64 architected timer updates

On 08/14/2013 11:17 AM, Sudeep KarkadaNagesha wrote:
> On 14/08/13 10:08, Daniel Lezcano wrote:
>> On 08/13/2013 07:29 PM, Sudeep KarkadaNagesha wrote:
>>> From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@....com>
>>>
>>> This patch series adds support to configure the rate and enable the
>>> event stream for architected timer. The event streams can be used to
>>> impose a timeout on a WFE, to safeguard against any programming error
>>> in case an expected event is not generated or even to implement
>>> wfe-based timeouts for userspace locking implementations.
>>>
>>> Since the timer control register is reset to zero on warm boot, CPU
>>> PM notifier is added to re-initialize it.
>>
>> It does not apply to my tree.
>>
>> Against which tree is this patchset ? Who is supposed to take it ?
>>
> As I had mentioned in previous version, because of the conflict, I had
> to rebase it on 3.11-rc4


dlezcano@mai:~/Work/src/clockevents$ git show
commit c095ba7224d8edc71dcef0d655911399a8bd4a3f
Author: Linus Torvalds <torvalds@...ux-foundation.org>
Date:   Sun Aug 4 13:46:46 2013 -0700

    Linux 3.11-rc4

diff --git a/Makefile b/Makefile
index 95a8e55..f93d4f7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 11
 SUBLEVEL = 0
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc4
 NAME = Linux for Workgroups

 # *DOCUMENTATION*


dlezcano@mai:~/Work/src/clockevents$ git am -s arch_timer

Applying: ARM/ARM64: arch_timer: add macros for bits in control register
Applying: drivers: clocksource: configure event stream for ARM arch timer
Applying: ARM: arch_timer: configure and enable event stream
Applying: ARM64: arch_timer: configure and enable event stream
Applying: drivers: clocksource: add CPU PM notifier for ARM architected
timer
error: patch failed: drivers/clocksource/arm_arch_timer.c:160
error: drivers/clocksource/arm_arch_timer.c: patch does not apply
Patch failed at 0005 drivers: clocksource: add CPU PM notifier for ARM
architected timer
When you have resolved this problem run "git am --resolved".
If you would prefer to skip this patch, instead run "git am --skip".
To restore the original branch and stop patching run "git am --abort".


>>> Changes v2->v3:
>>> 1. Moved ARM and ARM64 changes into separate patches
>>> 2. Added native hwcaps definations(ARM/ARM64) and compat-specific
>>>    definitions(ARM64) to the users for the event stream feature. 
>>
>> Ok, we have the choice:
>>  1. split the patchset into arch/arm changes and drivers/clocksource
>>  2. I ack the patchset and Olof/Kevin take it
>>  3. Olof/Kevin ack the patchset and I take it in my tree.
>>
>> This is really becoming fuzzy.
>>
> I am not sure if we need to split it. It would get too messy because of
> dependencies. Once we have ACKs from all the corresponding maintainers,
> it can go through one of the tree.
> 
>> If you want a maintainer to take a patchset you have to send an email
>> --to him and --cc mailing list and others concerned by the patchset.
>>
> Ok understood.
> 
> Regards,
> Sudeep
> 


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