linux-kernel - Re: [PATCH v2 RESEND 1/2] ARM: arch timer: Set the TVAL before timer is enabled

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5054DCB8.4030209@codeaurora.org>
Date:	Sat, 15 Sep 2012 12:53:28 -0700
From:	Rohit Vaswani <rvaswani@...eaurora.org>
To:	David Brown <davidb@...eaurora.org>
CC:	Marc Zyngier <marc.zyngier@....com>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Daniel Walker <dwalker@...o99.com>,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 RESEND 1/2] ARM: arch timer: Set the TVAL before timer
 is enabled

On 9/15/2012 10:00 AM, David Brown wrote:
> On Sat, Sep 15, 2012 at 12:41:53AM -0700, Rohit Vaswani wrote:
>> On some hardware, the timer deasserts the interrupt when a
>> new TVAL is written only when the enable bit is cleared.
>> Hence explicitly disable the timer and then program the
>> TVAL followed by enabling the timer.
>> If this order is not followed, there are chances that
>> you would not receive any timer interrupts.
> It's a little unclear to me who you intend to take this patch.  In the
> To field, you've listed Marc, the MSM maintainers, as well as Russell.
> The MSM tree doesn't really make sense, since this is general ARM
> code.  Marc would make sense if you depend on an active patch series
> he is working on, so he could include it.
>
> I'm guessing you meant it for Russell, though, and the rest of us as
> CCs.

Yes, thanks for pointing that out. Sorry if the headers were confusing, 
I will be more mindful of this next time.
>
> Thanks,
> David
>



Thanks,
Rohit Vaswani

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/