linux-kernel - Re: [PATCH] sparse_irq aka dyn

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Message-ID: <4920D0D7.7050905@sgi.com>
Date:	Sun, 16 Nov 2008 18:03:03 -0800
From:	Mike Travis <travis@....com>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Yinghai Lu <yinghai@...nel.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Andrew Morton <akpm@...ux-foundation.org>, mingo@...e.hu,
	tglx@...utronix.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sparse_irq aka dyn_irq v13

H. Peter Anvin wrote:
> Yinghai Lu wrote:
>> so we have one list to map domain/bus/dev/func to bits [31,12] in irq ?
>>
> 
> That works, although having a more generic allocation mechanism which
> isn't so tied to MSI-X would make more sense.
> 
> 	-hpa

Hmm, I see I picked up this conversation quite late.  I would agree that
trying to map any set of fixed bit fields to domain/bus/device/function
would be problematic (esp. since I don't understand how MSI's figure into
the deal.)

Is there some reason why we need that?

Thanks,
Mike
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