linux-kernel - [PATCH 0/2] irqchip/gic: Fix handling of Samsung's non-standard GIC

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Message-Id: <20200915133944.1285456-1-maz@kernel.org>
Date:   Tue, 15 Sep 2020 14:39:42 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        kernel-team@...roid.com
Subject: [PATCH 0/2] irqchip/gic: Fix handling of Samsung's non-standard GIC

Marek pointed out that the new IPI code broke the two ancient A9
platforms that use the dreaded Franken-GIC (not the official name), as
it appears it is even more broken than we though 9 years ago.

The fix isn't nice, although it allows for some further cleanup.

Marek, could you please give these another spin on your boards? For
convenience, I've stashed them as part of [1].

Thanks,

	M.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=irq/ipi-as-irq

Marc Zyngier (2):
  irqchip/gic: Handle non-standard SGI deactivation on Samsung's
    Franken-GIC
  irqchip/gic: Cleanup Franken-GIC handling

 drivers/irqchip/irq-gic.c | 67 +++++++++++++++++++++++++--------------
 1 file changed, 43 insertions(+), 24 deletions(-)

-- 
2.28.0