From: David Gibson <dwg@au1.ibm.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: kvm-ppc-devel <kvm-ppc-devel@lists.sourceforge.net>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Hollis Blanchard <hollisb@us.ibm.com>
Subject: Re: [kvm-ppc-devel] Bamboo PCI interrupt issues
Date: Tue, 04 Mar 2008 01:53:29 +0000 [thread overview]
Message-ID: <20080304015329.GE1393@localhost.localdomain> (raw)
In-Reply-To: <1204594967.21545.46.camel@pasglop>
On Tue, Mar 04, 2008 at 12:42:47PM +1100, Benjamin Herrenschmidt wrote:
>
> On Tue, 2008-03-04 at 11:59 +1100, David Gibson wrote:
> >
> > Uh.. there's no binding written down, it's just encoded into uic.c.
> > But UIC doesn't use OpenPIC sensitivity encoding. Like FSL's IPIC, it
> > uses Linux IRQ_TYPE values from include/linux/irq.h which makes 8
> > "level sensitive, active-low".
>
> On a related note: aren't we taking a risk here of seeing those values
> change in linux ?
We've discussed this before. If that happens, the binding must remain
on the old values. It means the driver will then need a translation
which it doesn't now, but we can deal with it.
--
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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WARNING: multiple messages have this Message-ID (diff)
From: David Gibson <dwg@au1.ibm.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: kvm-ppc-devel <kvm-ppc-devel@lists.sourceforge.net>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Hollis Blanchard <hollisb@us.ibm.com>
Subject: Re: Bamboo PCI interrupt issues
Date: Tue, 4 Mar 2008 12:53:29 +1100 [thread overview]
Message-ID: <20080304015329.GE1393@localhost.localdomain> (raw)
In-Reply-To: <1204594967.21545.46.camel@pasglop>
On Tue, Mar 04, 2008 at 12:42:47PM +1100, Benjamin Herrenschmidt wrote:
>
> On Tue, 2008-03-04 at 11:59 +1100, David Gibson wrote:
> >
> > Uh.. there's no binding written down, it's just encoded into uic.c.
> > But UIC doesn't use OpenPIC sensitivity encoding. Like FSL's IPIC, it
> > uses Linux IRQ_TYPE values from include/linux/irq.h which makes 8
> > "level sensitive, active-low".
>
> On a related note: aren't we taking a risk here of seeing those values
> change in linux ?
We've discussed this before. If that happens, the binding must remain
on the old values. It means the driver will then need a translation
which it doesn't now, but we can deal with it.
--
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
next prev parent reply other threads:[~2008-03-04 1:53 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-04 0:02 [kvm-ppc-devel] Bamboo PCI interrupt issues Hollis Blanchard
2008-03-04 0:02 ` Hollis Blanchard
2008-03-04 0:59 ` [kvm-ppc-devel] " David Gibson
2008-03-04 0:59 ` David Gibson
2008-03-04 1:42 ` [kvm-ppc-devel] " Benjamin Herrenschmidt
2008-03-04 1:42 ` Benjamin Herrenschmidt
2008-03-04 1:53 ` David Gibson [this message]
2008-03-04 1:53 ` David Gibson
2008-03-04 2:07 ` [kvm-ppc-devel] " Segher Boessenkool
2008-03-04 2:07 ` Segher Boessenkool
2008-03-04 2:15 ` [kvm-ppc-devel] " David Gibson
2008-03-04 2:15 ` David Gibson
2008-03-04 3:37 ` [kvm-ppc-devel] " Josh Boyer
2008-03-04 3:37 ` Josh Boyer
2008-03-04 6:15 ` [kvm-ppc-devel] " Stefan Roese
2008-03-04 6:15 ` Stefan Roese
2008-03-04 6:33 ` [kvm-ppc-devel] " Benjamin Herrenschmidt
2008-03-04 6:33 ` Benjamin Herrenschmidt
2008-03-04 20:39 ` [kvm-ppc-devel] " Segher Boessenkool
2008-03-04 20:39 ` Segher Boessenkool
2008-03-04 20:41 ` [kvm-ppc-devel] " Benjamin Herrenschmidt
2008-03-04 20:41 ` Benjamin Herrenschmidt
2008-03-04 20:59 ` [kvm-ppc-devel] " Segher Boessenkool
2008-03-04 20:59 ` Segher Boessenkool
2008-03-04 21:01 ` [kvm-ppc-devel] " Benjamin Herrenschmidt
2008-03-04 21:01 ` Benjamin Herrenschmidt
2008-03-04 6:18 ` [kvm-ppc-devel] " Benjamin Herrenschmidt
2008-03-04 6:18 ` Benjamin Herrenschmidt
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