linux-kernel - Re: [PATCH 1/2] irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x

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Message-ID: <YmvYrFUfIUvfjrmY@lunn.ch>
Date:   Fri, 29 Apr 2022 14:23:08 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Pali Rohár <pali@...nel.org>
Cc:     Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] irqchip/armada-370-xp: Do not touch Performance
 Counter Overflow on A375, A38x, A39x

On Mon, Apr 25, 2022 at 01:37:05PM +0200, Pali Rohár wrote:
> Register ARMADA_370_XP_INT_FABRIC_MASK_OFFS is Armada 370 and XP specific
> and on new Armada platforms it has different meaning. It does not configure
> Performance Counter Overflow interrupt masking. So do not touch this
> register on non-A370/XP platforms (A375, A38x and A39x).

Hi Pali

Do the Armada 375, 38x and 39x have an over flow interrupt? I assume
not.

Does this need a fixes tag? Should it be back ported in stable?

     Andrew