irqchip/gic-v3: Factor group0 detection into functions
hulk inclusion category: feature bugzilla: 9291 CVE: NA ported from https://lore.kernel.org/patchwork/patch/1037475/ -------------------------------- The code to detect whether Linux has access to group0 interrupts can prove useful in other parts of the driver. Provide a separate function to do this. Signed-off-by: NJulien Thierry <julien.thierry@arm.com> Acked-by: NMarc Zyngier <marc.zyngier@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: NWei Li <liwei391@huawei.com> Reviewed-by: NHanjun Guo <guohanjun@huawei.com> Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
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