linux-kernel - Re: [PATCH] clk: meson: axg: mark fdiv2 and fdiv3 as critical

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: <154170126140.88331.14691547333216324636@swboyd.mtv.corp.google.com>
Date:   Thu, 08 Nov 2018 10:21:01 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Carlo Caione <carlo@...one.org>,
        Jerome Brunet <jbrunet@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>
Cc:     Jerome Brunet <jbrunet@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        linux-amlogic@...ts.infradead.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: meson: axg: mark fdiv2 and fdiv3 as critical

Quoting Jerome Brunet (2018-11-08 01:31:23)
> Similar to gxbb and gxl platforms, axg SCPI Cortex-M co-processor
> uses the fdiv2 and fdiv3 to, among other things, provide the cpu
> clock.
> 
> Until clock hand-off mechanism makes its way to CCF and the generic
> SCPI claims platform specific clocks, these clocks must be marked as
> critical to make sure they are never disabled when needed by the
> co-processor.
> 
> Fixes: 05f814402d61 ("clk: meson: add fdiv clock gates")
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
> 
> Hi Stephen,
> 
> If you can put this one in clk-fixes as well, it would be awesome.
> It is basically the same thing as the change you took this Tuesday.
> 
> Since then, we had reports the same problem with SCPI was happening
> on the axg, calling for the same fixup.
> 

Ok. I suppose someone needs to work on clk handoff................ me?