From: "Mylène Josserand" <mylene.josserand@bootlin.com>
To: maxime.ripard@bootlin.com, wens@csie.org, linux@armlinux.org.uk,
robh+dt@kernel.org, mark.rutland@arm.com
Cc: devicetree@vger.kernel.org, quentin.schulz@bootlin.com,
linux-kernel@vger.kernel.org, clabbe.montjoie@gmail.com,
thomas.petazzoni@bootlin.com, mylene.josserand@bootlin.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 7/7] ARM: sun8i: smp: Remove the disabling of CPU0
Date: Mon, 19 Feb 2018 09:18:37 +0100 [thread overview]
Message-ID: <20180219081837.15482-8-mylene.josserand@bootlin.com> (raw)
In-Reply-To: <20180219081837.15482-1-mylene.josserand@bootlin.com>
On sun8i-a63t, hotplug CPU for CPU0 is currently not working.
Remove the possibility to disable CPU0 only for sun8i-a83t.
Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
---
arch/arm/mach-sunxi/mc_smp.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-sunxi/mc_smp.c b/arch/arm/mach-sunxi/mc_smp.c
index fec592bf68b4..69d5ae5b3d72 100644
--- a/arch/arm/mach-sunxi/mc_smp.c
+++ b/arch/arm/mach-sunxi/mc_smp.c
@@ -661,8 +661,12 @@ 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 handled only for sun9i */
+ if (of_machine_is_compatible("allwinner,sun8i-a83t"))
+ if (cpu == 0)
+ return false;
return true;
}
#endif
--
2.11.0
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next prev parent reply other threads:[~2018-02-19 8:18 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-19 8:18 [PATCH v3 0/7] Add SMP support on sun8i-a83t Mylène Josserand
2018-02-19 8:18 ` [PATCH v3 1/7] ARM: sun8i: smp: Add support for A83T Mylène Josserand
2018-02-19 9:04 ` Maxime Ripard
2018-02-19 10:39 ` Mylène Josserand
2018-02-20 3:32 ` Chen-Yu Tsai
2018-02-22 7:47 ` Mylène Josserand
2018-02-19 8:18 ` [PATCH v3 2/7] ARM: dts: sun8i: Add CPUCFG device node for A83T dtsi Mylène Josserand
2018-02-19 8:18 ` [PATCH v3 3/7] ARM: dts: sun8i: Add PRCM device node for the " Mylène Josserand
2018-02-19 8:48 ` Maxime Ripard
2018-02-19 10:42 ` Mylène Josserand
2018-02-19 8:18 ` [PATCH v3 4/7] ARM: dts: sun8i: Add R_CPUCFG " Mylène Josserand
2018-02-19 8:18 ` [PATCH v3 5/7] arm: dts: sun8i: a83t: Add CCI-400 node Mylène Josserand
2018-02-19 8:49 ` Maxime Ripard
2018-02-19 10:43 ` Mylène Josserand
2018-02-19 8:18 ` [PATCH v3 6/7] arm: dts: sun8i: a83t: Fix undefined offset with virtual timer Mylène Josserand
2018-02-19 8:52 ` Maxime Ripard
2018-02-19 10:44 ` Mylène Josserand
2018-02-20 18:07 ` Marc Zyngier
2018-02-22 9:30 ` Mylène Josserand
2018-02-19 8:18 ` Mylène Josserand [this message]
2018-02-19 8:54 ` [PATCH v3 7/7] ARM: sun8i: smp: Remove the disabling of CPU0 Maxime Ripard
2018-02-19 10:50 ` Mylène Josserand
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