From: Abel Vesa <abelvesa@gmail.com>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Marc Zyngier <marc.zyngier@arm.com>,
Lucas Stach <l.stach@pengutronix.de>, Bai Ping <ping.bai@nxp.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Leonard Crestez <leonard.crestez@nxp.com>
Cc: devicetree@vger.kernel.org, Carlo Caione <ccaione@baylibre.com>,
NXP Linux Team <linux-imx@nxp.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [RFC 0/2] Add workaround for core wake-up on IPI for i.MX8MQ
Date: Mon, 10 Jun 2019 15:13:44 +0300 [thread overview]
Message-ID: <20190610121346.15779-1-abel.vesa@nxp.com> (raw)
This is another alternative for the RFC:
https://lkml.org/lkml/2019/3/27/545
This new workaround proposal is a little bit more hacky but more contained
since everything is done within the irq-imx-gpcv2 driver.
Basically, it 'hijacks' the registered gic_raise_softirq __smp_cross_call
handler and registers instead a wrapper which calls in the 'hijacked'
handler, after that calling into EL3 which will take care of the actual
wake up. This time, instead of expanding the PSCI ABI, we use a new vendor SIP.
I also have the patches ready for TF-A but I'll hold on to them until I see if
this has a chance of getting in.
Abel Vesa (2):
irqchip: irq-imx-gpcv2: Add workaround for i.MX8MQ ERR11171
arm64: dts: imx8mq: Add idle states and gpcv2 wake_request broken
property
arch/arm64/boot/dts/freescale/imx8mq.dtsi | 20 +++++++++++++++
drivers/irqchip/irq-imx-gpcv2.c | 42 +++++++++++++++++++++++++++++++
2 files changed, 62 insertions(+)
--
2.7.4
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next reply other threads:[~2019-06-10 12:15 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-10 12:13 Abel Vesa [this message]
2019-06-10 12:13 ` [RFC 1/2] irqchip: irq-imx-gpcv2: Add workaround for i.MX8MQ ERR11171 Abel Vesa
2019-06-10 12:38 ` Leonard Crestez
2019-06-10 13:24 ` Marc Zyngier
2019-06-10 13:38 ` Abel Vesa
2019-06-10 13:51 ` Marc Zyngier
2019-06-10 14:12 ` Abel Vesa
2019-06-10 14:28 ` Marc Zyngier
2019-06-10 12:13 ` [RFC 2/2] arm64: dts: imx8mq: Add idle states and gpcv2 wake_request broken property Abel Vesa
2019-06-10 13:19 ` [RFC 0/2] Add workaround for core wake-up on IPI for i.MX8MQ Mark Rutland
2019-06-10 13:29 ` Abel Vesa
2019-06-10 13:39 ` Marc Zyngier
2019-06-10 13:55 ` Abel Vesa
2019-06-10 14:07 ` Marc Zyngier
2019-06-10 14:32 ` Leonard Crestez
2019-06-10 14:52 ` Marc Zyngier
2019-06-12 7:14 ` Thomas Gleixner
2019-06-12 7:35 ` Marc Zyngier
2019-06-12 7:37 ` Thomas Gleixner
2019-06-23 11:47 ` Martin Kepplinger
2019-06-28 8:54 ` Abel Vesa
2019-07-02 6:47 ` Martin Kepplinger
2019-07-02 11:33 ` Abel Vesa
2019-07-08 7:54 ` Martin Kepplinger
2019-07-08 12:20 ` Martin Kepplinger
2019-10-30 6:11 ` Martin Kepplinger
2019-10-30 7:33 ` Martin Kepplinger
2019-10-30 8:08 ` Abel Vesa
2019-10-30 8:14 ` Martin Kepplinger
2019-11-04 8:49 ` Martin Kepplinger
2019-11-04 10:35 ` Abel Vesa
2019-11-06 11:59 ` Martin Kepplinger
2019-11-06 22:36 ` Leonard Crestez
2019-11-08 11:21 ` Martin Kepplinger
2019-11-08 11:50 ` Abel Vesa
2019-11-08 14:17 ` Martin Kepplinger
2019-11-11 7:54 ` Abel Vesa
2019-11-25 17:23 ` Martin Kepplinger
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