linux-kernel - Re: [PATCH v6 09/11] ARM: sun8i: smp: Add support for A83T

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Message-ID: <20180418074643.5bd68168@dell-desktop.home>
Date:   Wed, 18 Apr 2018 07:46:43 +0200
From:   Mylène Josserand <mylene.josserand@...tlin.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     linux@...linux.org.uk, wens@...e.org, marc.zyngier@....com,
        mark.rutland@....com, robh+dt@...nel.org, horms@...ge.net.au,
        geert@...ux-m68k.org, magnus.damm@...il.com,
        linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org,
        clabbe.montjoie@...il.com, quentin.schulz@...tlin.com,
        thomas.petazzoni@...tlin.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 09/11] ARM: sun8i: smp: Add support for A83T

Hello Maxime,

On Tue, 17 Apr 2018 13:20:38 +0200
Maxime Ripard <maxime.ripard@...tlin.com> wrote:

> On Mon, Apr 16, 2018 at 11:50:30PM +0200, Mylène Josserand wrote:
> > @@ -535,8 +599,12 @@ static int sunxi_mc_smp_cpu_kill(unsigned int l_cpu)
> >  	return !ret;
> >  }
> >  
> > -static bool sunxi_mc_smp_cpu_can_disable(unsigned int __unused)
> > +static bool sunxi_mc_smp_cpu_can_disable(unsigned int cpu)
> >  {
> > +	/* CPU0 hotplug not handled for sun8i-a83t */
> > +	if (is_sun8i)
> > +		if (cpu == 0)
> > +			return false;
> >  	return true;  
> 
> I think Chen-Yu told you how to implement the hotplug in the previous
> iteration, did you have time to test it?

Not yet, I will have a look this evening.

Best regards,

-- 
Mylène Josserand, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com