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From: Andi Kleen <ak@suse.de>
To: "Brown, Len" <len.brown@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	"Protasevich, Natalie" <Natalie.Protasevich@unisys.com>,
	sergio@sergiomb.no-ip.org,
	"Kimball Murray" <kimball.murray@gmail.com>,
	linux-kernel@vger.kernel.org, akpm@digeo.com, kmurray@redhat.com,
	linux-acpi@vger.kernel.org
Subject: Re: [(repost) git Patch 1/1] avoid IRQ0 ioapic pin collision
Date: Tue, 2 May 2006 08:14:48 +0200	[thread overview]
Message-ID: <200605020814.49144.ak@suse.de> (raw)
In-Reply-To: <CFF307C98FEABE47A452B27C06B85BB652DDDD@hdsmsx411.amr.corp.intel.com>


> >- Modify do_IRQ to get passed an interrupt vector# from the
> >  interrupt vector instead of an irq number, and then lookup
> >  the irq number in vector_irq.  This means we don't need
> >  a code stub per irq, and allows us to handle more irqs
> >  by simply increasing NR_IRQS.
> 
> isn't the vector number already on the stack from
> ENTRY(interrupt)
> 	pushl $vector-256

Yes - and interrupts/vectors are currently always identical. If we go
to per CPU IDTs I suspect the stubs will just need to be generated
at runtime and start passing interrupts.

-Andi

  reply	other threads:[~2006-05-02  6:15 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-01 23:21 [(repost) git Patch 1/1] avoid IRQ0 ioapic pin collision Brown, Len
2006-05-02  6:14 ` Andi Kleen [this message]
2006-05-02  6:57   ` Eric W. Biederman
2006-05-02  7:11     ` Andi Kleen
2006-05-02  7:39       ` Eric W. Biederman
2006-05-02  6:24 ` Eric W. Biederman
  -- strict thread matches above, loose matches on Subject: below --
2006-05-09  5:14 Protasevich, Natalie
2006-05-09  4:25 Brown, Len
2006-05-09  3:10 Protasevich, Natalie
2006-05-08 21:51 Brown, Len
2006-05-08 18:37 Protasevich, Natalie
2006-05-06  6:42 Protasevich, Natalie
2006-05-06  6:18 Brown, Len
2006-05-04 16:42 Protasevich, Natalie
2006-05-04 16:04 Brown, Len
2006-05-04 22:41 ` Eric W. Biederman
2006-05-04 15:33 Brown, Len
2006-05-04  5:07 Brown, Len
2006-05-04 15:31 ` Eric W. Biederman
2006-05-02 23:52 Protasevich, Natalie
2006-05-02  7:41 Brown, Len
2006-05-02  7:46 ` Andi Kleen
2006-05-02  8:33 ` Eric W. Biederman
2006-04-27 20:36 Protasevich, Natalie
2006-04-30 23:17 ` Eric W. Biederman
2006-04-27 19:32 Brown, Len
2006-04-27 19:26 Protasevich, Natalie
2006-04-27 19:10 Protasevich, Natalie
2006-04-27 19:13 ` Andi Kleen
2006-04-27 18:13 Brown, Len
2006-04-27 18:16 ` Andi Kleen
2006-04-26 14:00 Protasevich, Natalie
2006-04-25 19:53 Brown, Len
2006-04-26 12:58 ` Sergio Monteiro Basto
2006-04-26 13:17 ` Andi Kleen
2006-04-26 13:56   ` Kimball Murray
2006-04-26 14:01     ` Kimball Murray
2006-04-25 16:06 Kimball Murray
2006-04-26 11:27 ` Andi Kleen

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