linux-kernel - Re: [PATCH] ARM: TWD: Consolidate local timers support

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Message-ID: <AANLkTinse2AS4gj0-5H3tZsXbhzW1AT8xY8gT9qo8j35@mail.gmail.com>
Date:	Thu, 2 Dec 2010 15:24:16 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Anton Vorontsov <avorontsov@...sta.com>,
	Paul Walmsley <paul@...an.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Benoit Cousson <b-cousson@...com>,
	Srinidhi Kasagar <srinidhi.kasagar@...ricsson.com>,
	Tony Lindgren <tony@...mide.com>, linux-kernel@...r.kernel.org,
	linux-tegra@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Colin Cross <ccross@...roid.com>,
	Varun Swara <Varun.Swara@....com>, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ARM: TWD: Consolidate local timers support

On 30 November 2010 22:16, Russell King - ARM Linux
<linux@....linux.org.uk> wrote:
> On Tue, Nov 30, 2010 at 08:31:05PM +0300, Anton Vorontsov wrote:
>> This greatly reduces amount of platform-specific code, and thus
>> makes it easier to add local timers for new platforms.
>>
>> Technically, it's not very nice to place machine-specific (i.e.
>> local_timer_setup()) routine into the machine-agnostic code.
>> But the true thing is: currently all machines want the same thing.
>
> I've just been talking to someone this week about (presumably) non-TWD
> local timers.

FYI, Cortex-A15 comes with some architected timers different from the
current ones (specs publicly available in the same place as LPAE).
We'll push some patches at some point.

-- 
Catalin
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