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From: "tip-bot2 for Marc Zyngier" <tip-bot2@linutronix.de>
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To: linux-tip-commits@vger.kernel.org
Subject: [tip: irq/urgent] irqchip/gic-v3-its: Restore quirk probing for
ACPI-based systems
Cc: Marc Zyngier <maz@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
Lorenzo Pieralisi <lpieralisi@kernel.org>, Zenghui Yu <yuzenghui@huawei.com>,
stable@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org
In-Reply-To: <20240213101206.2137483-3-maz@kernel.org>
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[tip:,irq/urgent] irqchip/gic-v3-its: Restore quirk probing for ACPI-based systems
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Commit Message
tip-bot2 for Thomas Gleixner
Feb. 13, 2024, 10:38 a.m. UTC
The following commit has been merged into the irq/urgent branch of tip:
Commit-ID: 8b02da04ad978827e5ccd675acf170198f747a7a
Gitweb: https://git.kernel.org/tip/8b02da04ad978827e5ccd675acf170198f747a7a
Author: Marc Zyngier <maz@kernel.org>
AuthorDate: Tue, 13 Feb 2024 10:12:05
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Tue, 13 Feb 2024 11:29:52 +01:00
irqchip/gic-v3-its: Restore quirk probing for ACPI-based systems
While refactoring the way the ITSs are probed, the handling of quirks
applicable to ACPI-based platforms was lost. As a result, systems such as
HIP07 lose their GICv4 functionnality, and some other may even fail to
boot, unless they are configured to boot with DT.
Move the enabling of quirks into its_probe_one(), making it common to all
firmware implementations.
Fixes: 9585a495ac93 ("irqchip/gic-v3-its: Split allocation from initialisation of its_node")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240213101206.2137483-3-maz@kernel.org
---
drivers/irqchip/irq-gic-v3-its.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index fec1b58..250b456 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -5091,6 +5091,8 @@ static int __init its_probe_one(struct its_node *its) u32 ctlr; int err; + its_enable_quirks(its); + if (is_v4(its)) { if (!(its->typer & GITS_TYPER_VMOVP)) { err = its_compute_its_list_map(its); @@ -5442,7 +5444,6 @@ static int __init its_of_probe(struct device_node *node) if (!its) return -ENOMEM; - its_enable_quirks(its); err = its_probe_one(its); if (err) { its_node_destroy(its);