On Fri, 2013-06-07 at 18:29 -0500, Scott Wood wrote:
> I just meant that a PCIe device targeting something other than RAM,
> CCSR (it's not just MSIs that are mapped through the special window),
> or another PCIe is a rather unusual case -- not something that you'd
> see by just plugging in
On 06/07/2013 05:39:53 PM, Benjamin Herrenschmidt wrote:
On Fri, 2013-06-07 at 17:34 -0500, Scott Wood wrote:
> > You also need to account for other on-chip MMIOs no ? Or do you
never
> > intend to let PCI devices hit them ?
>
> I don't think we normally need that (other than MSIs, which have
On Fri, 2013-06-07 at 17:34 -0500, Scott Wood wrote:
> > You also need to account for other on-chip MMIOs no ? Or do you never
> > intend to let PCI devices hit them ?
>
> I don't think we normally need that (other than MSIs, which have a
> special window under 4G)... The question is whether it
On 06/07/2013 05:09:54 PM, Benjamin Herrenschmidt wrote:
On Fri, 2013-06-07 at 17:02 -0500, Scott Wood wrote:
> O
> > I thought the device tree was for describing the hardware, rather
> > than configuration? :-)
A bit of both really. See things like /chosen etc...
Also to what extent a MAC addr
On Fri, 2013-06-07 at 17:02 -0500, Scott Wood wrote:
> O
> > I thought the device tree was for describing the hardware, rather
> > than configuration? :-)
A bit of both really. See things like /chosen etc...
Also to what extent a MAC address is HW vs. configuration ? :-)
The HW configuration f
On 06/07/2013 05:01:28 PM, Scott Wood wrote:
On 06/07/2013 07:09:20 AM, Benjamin Herrenschmidt wrote:
On Fri, 2013-06-07 at 09:44 +, Zang Roy-R61911 wrote:
>
> > -Original Message-
> > From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org]
> >
> > On Fri, 2013-06-07 at 07:58
On Fri, 2013-06-07 at 09:44 +, Zang Roy-R61911 wrote:
>
> > -Original Message-
> > From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org]
> >
> > On Fri, 2013-06-07 at 07:58 +, Zang Roy-R61911 wrote:
> > >
> > > > -Original Message-
> > > > From: Benjamin Herrensch
> -Original Message-
> From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org]
>
> On Fri, 2013-06-07 at 07:58 +, Zang Roy-R61911 wrote:
> >
> > > -Original Message-
> > > From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org]
> > >
> > > Hi Folks !
> > >
> > >
On Fri, 2013-06-07 at 07:58 +, Zang Roy-R61911 wrote:
>
> > -Original Message-
> > From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org]
> >
> > Hi Folks !
> >
> > Is there any specific reason why you chose 1T (40 bit) as the location of
> > the 64-bit DMA window ?
> >
> >
> -Original Message-
> From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org]
>
> Hi Folks !
>
> Is there any specific reason why you chose 1T (40 bit) as the location of
> the 64-bit DMA window ?
>
> It happens that most current radeon adapters cannot DMA there, they have
> a
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