linux-kernel - Re: [PATCH v3 28/31] arm64: Generic timers support

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Message-Id: <201209071953.14680.arnd@arndb.de>
Date:	Fri, 7 Sep 2012 19:53:14 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Catalin Marinas <catalin.marinas@....com>
Cc:	linux-arch@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 28/31] arm64: Generic timers support

On Friday 07 September 2012, Catalin Marinas wrote:
> From: Marc Zyngier <marc.zyngier@....com>
> 
> This patch adds support for the ARM generic timers with A64 instructions
> for accessing the timer registers. It uses the physical counter as the
> clock source and the virtual counter as sched_clock.
> 
> The timer frequency can be specified via DT or read from the CNTFRQ_EL0
> register. The physical counter is also accessible from user space
> allowing fast gettimeofday() implementation.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@....com>
> Signed-off-by: Will Deacon <will.deacon@....com>
> Signed-off-by: Catalin Marinas <catalin.marinas@....com>
> Acked-by: Tony Lindgren <tony@...mide.com>

Acked-by: Arnd Bergmann <arnd@...db.de>
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