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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Adam Jackson <ajax@redhat.com>
Cc: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>,
	dri-devel@lists.freedesktop.org,
	Benjamin Herrenschmidt <benh@au1.ibm.com>,
	linux-pci@vger.kernel.org,
	Nishanth Aravamudan <nacc@linux.vnet.ibm.com>,
	linux-kernel@vger.kernel.org,
	Brian King <brking@linux.vnet.ibm.com>,
	Bjorn Helgaas <bhelgaas@google.com>
Subject: Re: radeon: RFC speed cap detection on ppc64
Date: Mon, 22 Oct 2012 16:44:44 +0100	[thread overview]
Message-ID: <20121022164444.2b0775ce@pyramind.ukuu.org.uk> (raw)
In-Reply-To: <508565FA.4040908@redhat.com>

> That (walking all parent nodes) is probably the safest thing to do.  I'm 
> not sure whether it's optimal.  It would likely depend on whether you 
> can meaningfully have a bridge that's faster on the downstream side than 
> on the upstream.

This is architecture goo at heart - would this be better as a helper in
the PCI and arch PCI code ?

Alan

  reply	other threads:[~2012-10-22 15:39 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-19 17:43 radeon: RFC speed cap detection on ppc64 Lucas Kannebley Tavares
2012-10-22 15:27 ` Adam Jackson
2012-10-22 15:44   ` Alan Cox [this message]
2012-10-22 16:59     ` Bjorn Helgaas

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