linux-kernel - Re: [RFC PATCH 0/2] clk: sunxi-ng: a64: Remove CPUX mux switching

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: <20201120152231.2ur2yaz6yuf66mt2@gilmour>
Date:   Fri, 20 Nov 2020 16:22:31 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Icenowy Zheng <icenowy@...c.io>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Ondrej Jirman <megous@...ous.com>, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [RFC PATCH 0/2] clk: sunxi-ng: a64: Remove CPUX mux switching

On Mon, Nov 09, 2020 at 01:33:56PM +0800, Icenowy Zheng wrote:
> According to Ondrej Jirman, switching of the mux of CPUX clock is one of
> the sources of timer jumps on A64 (and maybe this will also lead to
> timer jump on H3).

Isn't the arch timer supposed to be clocked directly for the 24MHz
crystal? Either way, it would be great to have some explanations on why
this is the source of the timer jumps. It's like the third or fourth
time that claim is made, without completely fixing the issue so far

Maxime

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)