From: Alex Williamson <alex.williamson@hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: arch/ia64/kernel/mca.c and CONFIG_ACPI
Date: Wed, 08 Feb 2006 03:22:42 +0000 [thread overview]
Message-ID: <1139368962.26420.144.camel@localhost> (raw)
In-Reply-To: <10584.1139367384@kao2.melbourne.sgi.com>
On Wed, 2006-02-08 at 13:56 +1100, Keith Owens wrote:
> If CONFIG_ACPI is no then arch/ia64/kernel/mca.c drops the CPE handler,
> but not the CMC handler. Also the CPE handler uses
> acpi_request_vector(), but CMC does not. Why the differences?
Probably a bug, because we could still poll for CPEs w/o ACPI.
Originally the CPE handler was only interrupt driven and the interrupt
is described as a platform interrupt source via ACPI. So it made sense
then. CMC have never had an ACPI dependency since the architecture
defines their setup and not the platform.
Alex
prev parent reply other threads:[~2006-02-08 3:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-08 2:56 arch/ia64/kernel/mca.c and CONFIG_ACPI Keith Owens
2006-02-08 3:22 ` Alex Williamson [this message]
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