Re: [Linux-ia64] Replacements for local_irq_xxx()

From: David Mosberger <davidm_at_hpl.hp.com>
Date: 2001-05-11 00:26:38
>>>>> 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
Received on Thu May 10 07:29:49 2001

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