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From: Thomas Gleixner <tglx@linutronix.de>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/2] irq: sparseirq enabling
Date: Mon, 24 Nov 2008 23:26:26 +0100 (CET)	[thread overview]
Message-ID: <alpine.LFD.2.00.0811242318490.3235@localhost.localdomain> (raw)
In-Reply-To: <492AFEF9.609@kernel.org>

On Mon, 24 Nov 2008, Yinghai Lu wrote:
> Ingo Molnar wrote:
> > This should simplify quite a few things in the sparseirq code.
> 
> ok, will change to that. 
> 
> 1. nr_irqs will be legacy number or GSI numbers. MSI will start to use irq nr from nr_irqs
> 2. or MSI still to use irq from NR_IRQS - 1, and ... go smaller?

We should go up from legacy/GSI. We can decode the max. number of
possible "wired" irqs from the number of IO_APICs. Everything above
that is "virtual MSI" space.

Going down just makes it harder to read (numbers have more
digits for no value).

Thanks,

	tglx

  reply	other threads:[~2008-11-24 22:27 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-24  2:59 Yinghai Lu
2008-11-24 14:40 ` Ingo Molnar
2008-11-24 19:22   ` Yinghai Lu
2008-11-24 22:26     ` Thomas Gleixner [this message]
2008-11-25  3:57   ` [PATCH 1/2] irq: sparseirq enabling v2 Yinghai Lu
2008-11-25  3:58     ` [PATCH 2/2] irq: move irq_desc according to smp_affinity v2 Yinghai Lu
2008-11-26  7:48     ` [PATCH 1/2] irq: sparseirq enabling v2 Ingo Molnar
2008-11-26  8:02       ` Yinghai Lu
2008-11-26  8:17         ` Ingo Molnar
2008-11-26 18:33           ` Yinghai Lu
2008-11-27  2:26           ` [PATCH 1/2] irq: sparseirq enabling v3 Yinghai Lu
2008-11-27  2:26             ` [PATCH 2/2] irq: move irq_desc according to smp_affinity v3 Yinghai Lu
2008-11-28 16:34             ` [PATCH 1/2] irq: sparseirq enabling v3 Ingo Molnar
2008-11-29  7:13               ` [PATCH] irq: sparseirq enabling v4 Yinghai Lu
2008-11-29 10:02                 ` Ingo Molnar
2008-11-29 10:26                   ` Ingo Molnar
2008-12-01  4:44                     ` [PATCH] irq: sparse irq_desc[] support - fix Yinghai Lu
2008-11-29 10:57                   ` [PATCH] irq: sparseirq enabling v4 Sam Ravnborg
2008-11-29 14:33                     ` Ingo Molnar
2008-11-29 17:54                       ` Sam Ravnborg

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