linux-kernel - Re: [PATCH 0/2] Allwinner A64 timer workaround

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Message-ID: <2c16d5ab-38f7-8f3e-875c-19e8032f440a@arm.com>
Date:   Tue, 3 Jul 2018 16:09:44 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     Samuel Holland <samuel@...lland.org>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH 0/2] Allwinner A64 timer workaround

On 11/05/18 03:27, Samuel Holland wrote:
> Hello,
> 
> Several people (including me) have experienced extremely large system
> clock jumps on their A64-based devices, apparently due to the
> architectural timer going backward, which is interpreted by Linux as
> the timer wrapping around after 2^56 cycles.
> 
> Investigation led to discovery of some obvious problems with this SoC's
> architectural timer, and this patch series introduces what I believe is
> the simplest workaround. More details are in the commit message for
> patch 1. Patch 2 simply enables the workaround in the device tree.

What's the deal with this series? There was a couple of nits to address,
and I was more or less expecting a v2.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...