From: David Mosberger <davidm@hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] Replacements for local_irq_xxx()
Date: Thu, 10 May 2001 14:26:38 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005563@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590693005562@msgid-missing>
>>>>> On Thu, 10 May 2001 18:55:13 +1000, Keith Owens <kaos@ocs.com.au> said:
Keith> Existing local_irq_xxx() routines clear psr.i which masks all
Keith> interrupts, including NMI. Then the only way to get the
Keith> attention of a cpu in a disabled spin loop is via INIT which
Keith> is too drastic. How about these alternatives which set
Keith> cr.tpr.mmi instead, masking all external interrupts except
Keith> NMI?
I'd rather not do that. Accessing tpr is slow and requires explicit
serialization.
--david
next prev parent reply other threads:[~2001-05-10 14:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-10 8:55 [Linux-ia64] Replacements for local_irq_xxx() Keith Owens
2001-05-10 14:26 ` David Mosberger [this message]
2001-05-10 15:39 ` David Mosberger
2001-05-14 12:52 ` Keith Owens
2001-05-14 17:22 ` DE-DINECHIN,CHRISTOPHE (HP-Cupertino,ex1)
2001-05-15 15:11 ` David Mosberger
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