From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Yinghai Lu <yhlu.kernel@gmail.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Andrew Vasquez <andrew.vasquez@qlogic.com>
Subject: Re: [PATCH] pci: change msi-x vector to 32bit
Date: Mon, 18 Aug 2008 17:27:04 -0500 [thread overview]
Message-ID: <1219098424.3261.78.camel@localhost.localdomain> (raw)
In-Reply-To: <20080818225105.42784da0@lxorguk.ukuu.org.uk>
On Mon, 2008-08-18 at 22:51 +0100, Alan Cox wrote:
> > > I completely agree that irq number 99.9% of the time should be a completely
> > > abstract token.
> >
> > Sure, although one nice reason for doing the abstraction first is that
> > it stops people imposing fragile numbering schemes on irq ...
>
> On a lot of embedded devices IRQ numbers are not abstract and not
> fragile. I'm all for abstracting out interrupts nicely but it isn't just
> the legacy PC cases to consider - a lot of embedded is at least as
> defined, rigid and meaningfully numbered as ISA.
So for these, the abstraction transformation is the identity ... meaning
they behave as they always have.
James
next prev parent reply other threads:[~2008-08-18 22:27 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-16 3:26 [PATCH] pci: change msi-x vector to 32bit H. Peter Anvin
2008-08-16 6:42 ` Yinghai Lu
2008-08-16 14:50 ` James Bottomley
2008-08-16 15:39 ` Alan Cox
2008-08-16 16:13 ` James Bottomley
2008-08-16 18:56 ` Yinghai Lu
2008-08-16 20:10 ` Andrew Vasquez
2008-08-16 20:25 ` James Bottomley
2008-08-16 20:34 ` Yinghai Lu
2008-08-16 20:45 ` James Bottomley
2008-08-16 22:17 ` Yinghai Lu
2008-08-16 23:09 ` James Bottomley
2008-08-16 23:21 ` Yinghai Lu
2008-08-18 19:59 ` Eric W. Biederman
2008-08-18 20:59 ` James Bottomley
2008-08-18 21:45 ` Eric W. Biederman
2008-08-18 22:04 ` James Bottomley
2008-08-18 21:51 ` Alan Cox
2008-08-18 22:13 ` H. Peter Anvin
2008-08-18 22:27 ` James Bottomley [this message]
2008-08-18 21:24 ` H. Peter Anvin
2008-08-16 8:17 ` Eric W. Biederman
2008-08-16 9:00 ` Yinghai Lu
-- strict thread matches above, loose matches on Subject: below --
2008-08-16 2:36 Yinghai Lu
2008-08-21 20:33 ` Jesse Barnes
2008-08-21 20:47 ` Eric W. Biederman
2008-08-21 23:07 ` Jesse Barnes
2008-08-22 0:11 ` Eric W. Biederman
2008-08-22 0:35 ` Jesse Barnes
2008-08-27 23:34 ` Jesse Barnes
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