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From: Marc Gonzalez <marc.w.gonzalez@free.fr>
To: Amit Kucheria <amit.kucheria@linaro.org>
Cc: MSM <linux-arm-msm@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Andy Gross <agross@kernel.org>,
	Jeffrey Hugo <jhugo@codeaurora.org>
Subject: Re: [PATCH v2 7/9] arm64: dts: qcom: msm8998: Add PSCI cpuidle low power states
Date: Tue, 21 May 2019 18:10:17 +0200	[thread overview]
Message-ID: <9dfe47bc-9f37-e494-271b-b343205c8073@free.fr> (raw)
In-Reply-To: <a7514c68-d2d3-ce9e-bc4b-f484bb5bf3cf@free.fr>

On 21/05/2019 14:03, Marc Gonzalez wrote:

> the system starts to boot, hangs a few seconds, then silently reboots

Using extremely high-tech debugging tools (i.e. spraying printk left and right)
I traced this one down to:

psci_cpu_suspend_enter: 435
psci_cpu_suspend: 171
psci_cpu_suspend: __invoke_psci_fn_smc c4000001
__invoke_psci_fn_smc: id=c4000001 3 0 0
/*** we never return from arm_smccc_smc() ***/


The following dmesg log caught my eye, and might be relevant:

ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware


If I revert your patch, psci_cpu_suspend_enter() is never called,
so we don't tickle the arm_smccc_smc() monster.

Could it be that my FW doesn't support PSCI?

Regards.

  reply	other threads:[~2019-05-21 16:10 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-21  9:35 [PATCH v2 0/9] qcom: Add cpuidle to some platforms Amit Kucheria
2019-05-21  9:35 ` [PATCH v2 1/9] arm64: dts: fsl: ls1028a: Fix entry-method property to reflect documentation Amit Kucheria
2019-05-21  9:35 ` [PATCH v2 2/9] Documentation: arm: Link idle-states binding to "enable-method" property Amit Kucheria
2019-06-13 23:13   ` Rob Herring
2019-05-21  9:35 ` [PATCH v2 3/9] arm64: dts: qcom: msm8916: Add entry-method property for the idle-states node Amit Kucheria
2019-05-22  3:30   ` Bjorn Andersson
2019-05-21  9:35 ` [PATCH v2 4/9] arm64: dts: qcom: msm8916: Use more generic idle state names Amit Kucheria
2019-05-22  3:30   ` Bjorn Andersson
2019-05-21  9:35 ` [PATCH v2 5/9] arm64: dts: qcom: qcs404: Add PSCI cpuidle low power states Amit Kucheria
2019-05-22  3:31   ` Bjorn Andersson
2019-05-21  9:35 ` [PATCH v2 6/9] arm64: dts: qcom: msm8996: " Amit Kucheria
2019-05-21 10:13   ` Daniel Lezcano
2019-05-22  3:49   ` Bjorn Andersson
2019-05-23 21:24   ` Niklas Cassel
2019-05-21  9:35 ` [PATCH v2 7/9] arm64: dts: qcom: msm8998: " Amit Kucheria
2019-05-21 12:03   ` Marc Gonzalez
2019-05-21 16:10     ` Marc Gonzalez [this message]
2019-09-30 22:20   ` Jeffrey Hugo
2019-09-30 22:44     ` Amit Kucheria
2019-10-01 14:21       ` Jeffrey Hugo
2019-10-02  9:19     ` Niklas Cassel
2019-10-02  9:27       ` Niklas Cassel
2019-10-02 18:18         ` Jeffrey Hugo
2019-10-04  1:36           ` Amit Kucheria
2019-10-04  3:14             ` Jeffrey Hugo
2019-05-21  9:35 ` [PATCH v2 8/9] arm64: dts: qcom: sdm845: " Amit Kucheria
2019-05-22  3:59   ` Bjorn Andersson
2019-05-21  9:35 ` [PATCH v2 9/9] arm64: dts: msm8996: Add proper capacity scaling for the cpus Amit Kucheria
2019-05-21 10:14   ` Daniel Lezcano
2019-05-22  3:50   ` Bjorn Andersson

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