linux-kernel - Re: [PATCH v6 10/11] drivers: perf: hisi: use poll method when no IRQ for MN counter overflow

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]

Date:   Tue, 21 Mar 2017 17:17:24 +0000
From:   Mark Rutland <mark.rutland@....com>
To:     Anurup M <anurupvasu@...il.com>
Cc:     will.deacon@....com, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, anurup.m@...wei.com,
        zhangshaokun@...ilicon.com, tanxiaojun@...wei.com,
        xuwei5@...ilicon.com, sanil.kumar@...ilicon.com,
        john.garry@...wei.com, gabriele.paoloni@...wei.com,
        shiju.jose@...wei.com, huangdaode@...ilicon.com,
        linuxarm@...wei.com, dikshit.n@...wei.com, shyju.pv@...wei.com
Subject: Re: [PATCH v6 10/11] drivers: perf: hisi: use poll method when no
 IRQ for MN counter overflow

On Fri, Mar 10, 2017 at 01:29:01AM -0500, Anurup M wrote:
> When no IRQ is supported in hardware, use hrtimer to poll and
> update event counter and avoid overflow condition for MN PMU.
> An interval of 8 seconds is used for the hrtimer.

Please fold this into the main MN patch.

The comments on the L3 hrtimer patch also apply here.

Thanks,
Mark.