linux-kernel - Re: [PATCH] x86, HPET: ignore any PCI BARs that match an HPET we already know about

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Message-ID: <4C9A85A3.4020903@zytor.com>
Date:	Wed, 22 Sep 2010 15:39:31 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
CC:	Venkatesh Pallipadi <venki@...gle.com>,
	Prarit Bhargava <prarit@...hat.com>,
	Simon Arlott <simon@...e.lp0.eu>, x86@...nel.org,
	Clemens Ladisch <clemens@...isch.de>,
	linux-kernel@...r.kernel.org, Marc Jones <marcj303@...il.com>,
	Jordan Crouse <jcrouse@...eaurora.org>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] x86, HPET: ignore any PCI BARs that match an HPET we
 already know about

On 09/22/2010 03:37 PM, Bjorn Helgaas wrote:
> 
> That actually raises another question I had: we currently look at the
> HPET table pretty early, but I don't know whether the earliness is a
> requirement.  It would be cleaner if we could ignore the table and
> discover the HPET later in normal ways like pnp_register_driver() and
> pci_register_driver().  Then I could imagine someday dealing with the
> resources in a more generic way, i.e., in the PCI and PNP cores.
> 

Well, depends on how early we need timers...
	
	-hpa

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