linux-kernel - Re: [PATCH] arm: l2c: unlock ways when in non-secure mode

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Date:   Sun, 26 Nov 2017 13:18:13 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Peng Fan <peng.fan@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        van.freenix@...il.com, Mark Rutland <mark.rutland@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Chris Brandt <chris.brandt@...esas.com>,
        Will Deacon <will.deacon@....com>
Subject: Re: [PATCH] arm: l2c: unlock ways when in non-secure mode

On Sun, Nov 26, 2017 at 08:25:30PM +0800, Peng Fan wrote:
> To boot Linux in Non-secure mode with l2x0, the l2x0 controller
> is enabled in secure mode and ways locked to make it seems L2 cache
> disabled during linux boot process. So during l2x0 initialization,
> need to unlock the ways to make l2x0 could cache data/inst.

Why was this chosen instead of doing what everyone else does?

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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