linux-kernel - Re: [PATCH v15 7/7] soc: qcom: rpmh-rsc: Allow using free WAKE TCS for active request

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: <CAD=FV=X_JJWAb9BBkhWGZJ+jUvtO3ipf-OxFRYo38YY25cA42Q@mail.gmail.com>
Date:   Thu, 2 Apr 2020 13:13:59 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Maulik Shah <mkshah@...eaurora.org>
Cc:     Stephen Boyd <swboyd@...omium.org>,
        Evan Green <evgreen@...omium.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Andy Gross <agross@...nel.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Lina Iyer <ilina@...eaurora.org>, lsrao@...eaurora.org
Subject: Re: [PATCH v15 7/7] soc: qcom: rpmh-rsc: Allow using free WAKE TCS
 for active request

Hi,

On Tue, Mar 31, 2020 at 6:21 AM Maulik Shah <mkshah@...eaurora.org> wrote:
>
> When there are more than one WAKE TCS available and there is no dedicated
> ACTIVE TCS available, invalidating all WAKE TCSes and waiting for current
> transfer to complete in first WAKE TCS blocks using another free WAKE TCS
> to complete current request.
>
> Remove rpmh_rsc_invalidate() to happen from tcs_write() when WAKE TCSes
> is re-purposed to be used for Active mode. Clear only currently used
> WAKE TCS's register configuration.
>
> Mark the caches as dirty so next time when rpmh_flush() is invoked it
> can invalidate and program cached sleep and wake sets again.

Comment above is no longer right now that you've removed the place
that marks caches as dirty.


> Fixes: 2de4b8d33eab (drivers: qcom: rpmh-rsc: allow active requests from wake TCS)
> Signed-off-by: Maulik Shah <mkshah@...eaurora.org>
> ---
>  drivers/soc/qcom/rpmh-rsc.c | 23 +++++++++++------------
>  1 file changed, 11 insertions(+), 12 deletions(-)

Other than the comment nit:

Reviewed-by: Douglas Anderson <dianders@...omium.org>