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From: "Zhou Qiao(周侨)" <qiaozhou@asrmicro.com>
To: <tglx@linutronix.de>, <jason@lakedaemon.net>
Cc: <linux-kernel@vger.kernel.org>
Subject: [Questions]: how to extend nr_irqs for arch arm64
Date: Mon, 11 Jan 2016 11:18:09 +0800	[thread overview]
Message-ID: <F297158F9216834BAB1B3BCC98DBDCCB42D277@mailsh.asrmicro.com> (raw)

Hi Thomas, Jason

I've a question about nr_irqs(with CONFIG_SPARSE_IRQ enabled) on arch arm64, and want to ask for your suggestions. 

The nr_irqs is set to NR_IRQS by default and NR_IRQS is small(64). Arch/arm platforms will re-set nr_irqs to a larger value. I didn't find similar way for arm64. The way I can think of is to redefine NR_IRQS. But according comments in include/asm-generic/irq.h, NR_IRQS should not be a large value. so what's the preferred way to extend nr_irqs, for arm64 specifically? Thanks in advance.

Best Regards
Qiao

             reply	other threads:[~2016-01-11  3:31 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-11  3:18 Zhou Qiao(周侨) [this message]
2016-01-11  8:03 ` Thomas Gleixner
2016-01-11  8:45   ` Zhou Qiao(周侨)
2016-01-11  8:50     ` Thomas Gleixner
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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