From: Thomas Gleixner <tglx@linutronix.de>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: "Jörg Otte" <jrg.otte@googlemail.com>,
"Andi Kleen" <ak@linux.intel.com>,
linux-kernel@vger.kernel.org, "Len Brown" <lenb@kernel.org>
Subject: Re: [v3.4-rc1] ACPI regression bisected
Date: Thu, 12 Apr 2012 19:09:54 +0200 (CEST) [thread overview]
Message-ID: <alpine.LFD.2.02.1204121907330.2542@ionos> (raw)
In-Reply-To: <alpine.LFD.2.02.1204121903250.2542@ionos>
On Thu, 12 Apr 2012, Thomas Gleixner wrote:
> On Thu, 12 Apr 2012, Matthew Garrett wrote:
>
> > On Thu, Apr 12, 2012 at 10:57:45AM +0200, Thomas Gleixner wrote:
> >
> > > OK, so now the question is whether the ACPI interrupt can end up being
> > > shared or not.
> >
> > Per spec:
> >
> > "OSPM is required to treat the ACPI SCI interrupt as a sharable, level,
> > active low interrupt."
>
> I feared that. So now is the question whether there is a way to mask
> the interrupt at the "device" level.
If not, I could be persuaded to provide a mechanism to force thread
all interrupts which are on that line, if there's a good argument to
do so.
All machines in my farm do not share the line, so I guess it's only
relevant when you boot with apic disabled or such.
Thanks,
tglx
next prev parent reply other threads:[~2012-04-12 17:10 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-02 15:05 [v3.4-rc1] ACPI regression bisected Jörg Otte
2012-04-02 23:54 ` Andi Kleen
2012-04-03 8:11 ` Thomas Gleixner
2012-04-12 8:35 ` Jörg Otte
2012-04-12 8:57 ` Thomas Gleixner
2012-04-12 11:42 ` Paul Bolle
2012-04-12 17:06 ` Thomas Gleixner
2012-04-12 21:52 ` Paul Bolle
2012-04-12 14:29 ` Matthew Garrett
2012-04-12 17:04 ` Thomas Gleixner
2012-04-12 17:09 ` Thomas Gleixner [this message]
2012-04-12 19:26 ` Andi Kleen
2012-04-12 20:42 ` Thomas Gleixner
2012-04-18 9:25 ` Paul Bolle
2012-04-18 10:29 ` Thomas Gleixner
2012-04-18 11:07 ` Paul Bolle
2012-04-18 17:24 ` Linus Torvalds
2012-04-18 19:25 ` Thomas Gleixner
2012-04-19 9:30 ` Thomas Gleixner
2012-04-03 9:13 ` Jörg Otte
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