From: Jeff Garzik <jgarzik@mandrakesoft.com>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: thunder7@xs4all.nl, linux-kernel@vger.kernel.org
Subject: Re: [lkml]Re: interrupt problem with MPS 1.4 / not with MPS 1.1 ?
Date: Fri, 01 Jun 2001 00:41:21 -0400 [thread overview]
Message-ID: <3B171CF1.7F623441@mandrakesoft.com> (raw)
In-Reply-To: <3B16A7E3.1BD600F3@colorfullife.com>
Manfred Spraul wrote:
>
> >
> > I know that with MPS 1.4, the USB controller finds itself at an
> > unshared interrupt 19. I can't reboot at the moment to check.
> >
> lspci -vxxx -s 00:07.0
>
> the APIC sits in the southbridge.
> the low 2 bits of offset 0x58 must be set [route USB IRQ to APIC], and
>
> lspci -vx -s 00:07.2
>
> offset 0x3C must be set to 3 [19 & 15]
>
> There was some discussion about the same problem with the sound part of
> the southbridge.
If an IO-APIC is present, 2.4.5 automatically routes all Via IRQs to
external APIC.
See quirk_via_ioapic in drivers/pci/quirks.c.
I have received reports that MPS1.1 works on SMP Via boards, while
MPS1.4 kills it.
--
Jeff Garzik | Disbelief, that's why you fail.
Building 1024 |
MandrakeSoft |
next prev parent reply other threads:[~2001-06-01 4:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-31 20:21 [lkml]Re: interrupt problem with MPS 1.4 / not with MPS 1.1 ? Manfred Spraul
2001-05-31 20:27 ` [lkml]Re: " thunder7
2001-05-31 20:45 ` Manfred Spraul
2001-06-01 5:14 ` thunder7
2001-06-01 5:20 ` Jeff Garzik
2001-06-01 5:39 ` thunder7
2001-06-01 17:28 ` Manfred Spraul
2001-06-01 17:41 ` Jeff Garzik
2001-06-01 19:03 ` thunder7
2001-06-01 20:42 ` [PATCH] " Jeff Garzik
2001-06-02 6:27 ` [PATCH] " thunder7
2001-06-02 7:41 ` Jeff Garzik
2001-06-02 9:00 ` thunder7
2001-06-01 4:41 ` Jeff Garzik [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-05-31 18:39 thunder7
2001-05-31 18:06 ` Greg KH
2001-05-31 19:48 ` [lkml]Re: " thunder7
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