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Date: Tue, 28 Jun 2022 20:50:11 +0800 From: Hanjun Guo <guohanjun@...wei.com> To: Jianmin Lv <lvjianmin@...ngson.cn>, Thomas Gleixner <tglx@...utronix.de>, Marc Zyngier <maz@...nel.org> CC: <linux-kernel@...r.kernel.org>, Lorenzo Pieralisi <lorenzo.pieralisi@....com>, Jiaxun Yang <jiaxun.yang@...goat.com>, "Huacai Chen" <chenhuacai@...ngson.cn> Subject: Re: [PATCH V13 01/13] APCI: irq: Add support for multiple GSI domains On 2022/6/27 19:39, Jianmin Lv wrote: > From: Marc Zyngier <maz@...nel.org> > > In an unfortunate departure from the ACPI spec, the LoongArch > architecture split its GSI space across multiple interrupt > controllers. > > In order to be able to reuse sthe core code and prevent s/sthe/the > architectures from reinventing an already square wheel, offer > the arch code the ability to register a dispatcher function > that will return the domain fwnode for a given GSI. > > The ARM GIC drivers are updated to support this (with a single > domain, as intended). > > Signed-off-by: Marc Zyngier <maz@...nel.org> > Cc: Hanjun Guo <guohanjun@...wei.com> > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@....com> > Signed-off-by: Jianmin Lv <lvjianmin@...ngson.cn> > --- > drivers/acpi/irq.c | 40 +++++++++++++++++++++++++--------------- > drivers/irqchip/irq-gic-v3.c | 18 ++++++++++++------ > drivers/irqchip/irq-gic.c | 18 ++++++++++++------ > include/linux/acpi.h | 2 +- Reviewed-by: Hanjun Guo <guohanjun@...wei.com> I tested this patch on a GICv3 based ARM64 server, no regressions were found, Tested-by: Hanjun Guo <guohanjun@...wei.com> Thanks Hanjun
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