From: Thomas Gleixner <tglx@linutronix.de>
To: "Zhou Qiao(周侨)" <qiaozhou@asrmicro.com>
Cc: jason@lakedaemon.net, linux-kernel@vger.kernel.org
Subject: RE: [Questions]: how to extend nr_irqs for arch arm64
Date: Mon, 11 Jan 2016 09:50:55 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.11.1601110948200.3575@nanos> (raw)
In-Reply-To: <F297158F9216834BAB1B3BCC98DBDCCB42D2DE@mailsh.asrmicro.com>
[-- Attachment #1: Type: TEXT/PLAIN, Size: 446 bytes --]
On Mon, 11 Jan 2016, Zhou Qiao(周侨) wrote:
> I met an issue here. The nr_irqs is extended when the start_irq + cnt >
> nr_irqs. So when nr_irqs is not extended(still 64), a device with a large
> hr_irq(70) will get a wrong virq. since it will be mod by nr_irqs before
No, it won't get a wrong virq. It will get a virq and it does not matter at
all whether the hardware irq number is 10, 70, 500 or 5000. What's your
problem?
Thanks,
tglx
next prev parent reply other threads:[~2016-01-11 8:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-11 3:18 Zhou Qiao(周侨)
2016-01-11 8:03 ` Thomas Gleixner
2016-01-11 8:45 ` Zhou Qiao(周侨)
2016-01-11 8:50 ` Thomas Gleixner [this message]
2016-01-11 9:04 ` Zhou Qiao(周侨)
2016-01-11 9:17 ` Thomas Gleixner
2016-01-11 11:15 ` Zhou Qiao(周侨)
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