linux-kernel - Re: question regarding cacheline size

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Message-Id: <1157634080.14882.30.camel@laptopd505.fenrus.org>
Date:	Thu, 07 Sep 2006 15:01:19 +0200
From:	Arjan van de Ven <arjan@...radead.org>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Tejun Heo <htejun@...il.com>, linux-pci@...ey.karlin.mff.cuni.cz,
	Greg KH <greg@...ah.com>, lkml <linux-kernel@...r.kernel.org>
Subject: Re: question regarding cacheline size

On Thu, 2006-09-07 at 06:40 -0600, Matthew Wilcox wrote:
> On Thu, Sep 07, 2006 at 02:33:25PM +0200, Arjan van de Ven wrote:
> > 
> > > 
> > > So I think we should redo the PCI subsystem to set cacheline size during
> > > the buswalk rather than waiting for drivers to ask for it to be set.
> > 
> > ... while allowing for quirks for devices that go puke when this
> > register gets written ;)
> > 
> > (afaik there are a few)
> 
> So you want:
> 
> 	unsigned int no_cls:1;	/* Device pukes on write to Cacheline Size */
> 
> in struct pci_dev?

something like that yes...


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