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Subject: Re: "ahci: drop intx manipulation on msi enable" breaks ULI M1575
From: Michael Ellerman <michael@ellerman.id.au>
To: Timur Tabi <timur@freescale.com>
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Date: Wed, 08 Apr 2009 12:09:19 +1000
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Cc: Tejun Heo <tj@kernel.org>, linux-ide@vger.kernel.org,
	Jeff Garzik <jeff@garzik.org>,
	Linux PPC Development <linuxppc-dev@ozlabs.org>
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On Tue, 2009-04-07 at 19:36 -0500, Timur Tabi wrote:
> On Tue, Apr 7, 2009 at 6:57 PM, Tejun Heo <tj@kernel.org> wrote:
>=20
> > Hmmm... that means intx isn't set by default.  I'm not sure what is
> > the right thing to do here.  I think it's something which should be
> > handled by the PCI layer.  Oh well, maybe we should just revert the
> > change and keep setting intx?
>=20
> cc'ing linuxppc-dev
>=20
> I really don't know what should be done.  It seems to make sense to
> have the PCI layer enable interrupts.
>=20
> This seems to be a powerpc-specific bug, but I don't know enough of
> the PCI subsystem.

Have you confirmed that INTX is disabled before that call?

cheers

--=20
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person

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