From: David Gibson <david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+@public.gmane.org>
To: Benjamin Herrenschmidt
<benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Cc: Grant Likely
<grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Rob Herring <robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
devicetree-compiler-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Scott Wood <scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
Kim Phillips
<kim.phillips-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
Kumar Gala
<galak-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH] libfdt: add address translation support
Date: Wed, 14 May 2014 16:51:43 +1000 [thread overview]
Message-ID: <20140514065143.GA10865@voom.redhat.com> (raw)
In-Reply-To: <1400045038.17624.239.camel@pasglop>
[-- Attachment #1: Type: text/plain, Size: 1032 bytes --]
On Wed, May 14, 2014 at 03:23:58PM +1000, Benjamin Herrenschmidt wrote:
> On Wed, 2014-05-14 at 14:18 +1000, David Gibson wrote:
> > I supposed it's arguable that a PCI ranges property really should have
> > windows for both prefetchable and non-prefetchable areas, but since
> > that's not done in practice, it's pretty much moot.
>
> They don't have to, only if there's a relevant difference, ie it's
> perfectly legit for a firmware to assign prefetchable BARs in a
> non-prefetchable region.
In what sense is the window region non-prefetchable? Isn't that a
property only of the final destination of the bus cycle?
> Now granted, those are somewhat special cases so maybe we should
> do just that ... special case PCI and try to not continue that mess
> with new bindings.
Yeah, I think that's the way to go.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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prev parent reply other threads:[~2014-05-14 6:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-01 16:57 [PATCH] libfdt: add address translation support Rob Herring
[not found] ` <1396371463-7516-1-git-send-email-robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-04-01 18:59 ` Warner Losh
[not found] ` <4073722A-7162-4041-B1A2-8A992871FEC0-uzTCJ5RojNnQT0dZR+AlfA@public.gmane.org>
2014-04-02 5:43 ` David Gibson
[not found] ` <20140402054325.GC3496-1s0os16eZneny3qCrzbmXA@public.gmane.org>
2014-04-02 14:53 ` Warner Losh
[not found] ` <AB306DF0-D50C-476A-8314-CFCE5C57BB2E-uzTCJ5RojNnQT0dZR+AlfA@public.gmane.org>
2014-04-02 23:37 ` David Gibson
2014-04-01 23:02 ` Scott Wood
[not found] ` <1396393358.32034.40.camel-88ow+0ZRuxG2UiBs7uKeOtHuzzzSOjJt@public.gmane.org>
2014-04-02 19:24 ` Kim Phillips
[not found] ` <20140402142403.9d3316f14520252a4a3474e0-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2014-04-02 21:01 ` Rob Herring
2014-04-15 14:03 ` Rob Herring
[not found] ` <CAL_JsqKMUHiPeU7iQDHZ=E6GzMxvXBB4L8Arg+m0JrfQsRkhtg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-28 18:12 ` Rob Herring
2014-04-15 21:57 ` Grant Likely
[not found] ` <CACxGe6uPerPT_cT+p1zvL20ERwuguDJWDHasxz5gAUe5kPQHNg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-15 22:55 ` Rob Herring
2014-05-12 6:00 ` David Gibson
2014-05-12 6:10 ` Benjamin Herrenschmidt
2014-05-12 6:14 ` Benjamin Herrenschmidt
2014-05-14 4:19 ` David Gibson
2014-05-12 19:27 ` Rob Herring
[not found] ` <CAL_Jsq+zi72PAjQ+RGvUddLtHocgphPQQ9x2X0S0dYGOKz+Hgg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-05-12 22:01 ` Benjamin Herrenschmidt
2014-05-14 4:20 ` David Gibson
2014-05-14 4:18 ` David Gibson
2014-05-14 5:23 ` Benjamin Herrenschmidt
2014-05-14 6:51 ` David Gibson [this message]
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