From: Sudeep Holla <sudeep.holla@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Will Deacon <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Valentin Schneider <valentin.schneider@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Russell King <linux@armlinux.org.uk>,
kernel-team@android.com
Subject: Re: [PATCH v2 3/4] PSCI: Use cpuidle context helpers in psci_cpu_suspend_enter()
Date: Tue, 15 Jun 2021 14:27:34 +0100 [thread overview]
Message-ID: <20210615132734.ng7mr3iuiinvbaim@bogus> (raw)
In-Reply-To: <20210615111227.2454465-4-maz@kernel.org>
On Tue, Jun 15, 2021 at 12:12:26PM +0100, Marc Zyngier wrote:
> The PSCI CPU suspend code isn't aware of the PMR vs DAIF game,
> resulting in a system that locks up if entering CPU suspend
> with GICv3 pNMI enabled.
>
> To save the day, teach the suspend code about our new cpuidle
> context helpers, which will do everything that's required just
> like the usual WFI cpuidle code.
>
> This fixes my Altra system, which would otherwise lock-up at
> boot time when booted with irqchip.gicv3_pseudo_nmi=1.
>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
--
Regards,
Sudeep
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next prev parent reply other threads:[~2021-06-15 14:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-15 11:12 [PATCH v2 0/4] arm64: Fix cpuidle/suspend with pseudo-NMI enabled Marc Zyngier
2021-06-15 11:12 ` [PATCH v2 1/4] arm64: Add cpuidle context save/restore helpers Marc Zyngier
2021-06-15 11:12 ` [PATCH v2 2/4] arm64: Convert cpu_do_idle() to using cpuidle context helpers Marc Zyngier
2021-06-15 11:12 ` [PATCH v2 3/4] PSCI: Use cpuidle context helpers in psci_cpu_suspend_enter() Marc Zyngier
2021-06-15 13:27 ` Sudeep Holla [this message]
2021-06-15 11:12 ` [PATCH v2 4/4] arm64: suspend: Use cpuidle context helpers in cpu_suspend() Marc Zyngier
2021-06-15 13:16 ` Sudeep Holla
2021-06-17 22:38 ` [PATCH v2 0/4] arm64: Fix cpuidle/suspend with pseudo-NMI enabled Will Deacon
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