From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>,
Ingo Molnar <mingo@elte.hu>,
linux-ide@vger.kernel.org,
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>,
Daniel Walker <dwalker@mvista.com>
Subject: Re: [PATCH -rt] ide: fix interrupts processing issue with preempt-able hardirqs
Date: Wed, 25 Jun 2008 19:26:15 +0400 [thread overview]
Message-ID: <20080625152615.GA18241@polina.dev.rtsoft.ru> (raw)
In-Reply-To: <20080625153212.611c3766@lxorguk.ukuu.org.uk>
On Wed, Jun 25, 2008 at 03:32:12PM +0100, Alan Cox wrote:
> > Note: I don't have any specifications on that ULi bridge, neither I have
> > any schematics for that board (so far, let's hope). So I can't say
> > exactly how things are inter-connected or what these PCI quirks are
> > actually doing (despite few comments in them).
>
> So you don't for example know if the bridge is correctly configured for
> that device to be edge or level triggered ?
Nope. But I don't think that I can configure it anyway. The thing is
that this particular setup doesn't use ULi's i8259 PIC (it is disabled by
one of PCI quirks), and IDE interrupt is a sideband PCI-E interrupt (also
configured by the PCI quirk). So IDE interrupt is "directly" connected to
OpenPIC interrupt line (through the SOC PCI-E controller, of course).
If that ULi bridge (M1575) provides some other means of configuring, I
could try it... with the specifications.
--
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2
next prev parent reply other threads:[~2008-06-25 15:26 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-23 23:40 [PATCH -rt] ide: fix interrupts processing issue with preempt-able hardirqs Anton Vorontsov
2008-06-23 23:51 ` Ingo Molnar
2008-06-24 0:00 ` Anton Vorontsov
2008-06-25 12:34 ` Anton Vorontsov
2008-06-25 12:32 ` Alan Cox
2008-06-25 14:12 ` Anton Vorontsov
2008-06-25 13:15 ` Sergei Shtylyov
2008-06-25 14:22 ` Anton Vorontsov
2008-06-25 14:32 ` Alan Cox
2008-06-25 15:26 ` Anton Vorontsov [this message]
2008-06-25 14:59 ` Anton Vorontsov
2008-06-28 0:54 ` [PATCH v2 -rt] ide: workaround buggy hardware issues with preemptable hardirqs Anton Vorontsov
2008-06-28 1:09 ` Anton Vorontsov
2008-06-28 9:15 ` Alan Cox
2008-06-28 9:14 ` Alan Cox
2008-06-28 10:43 ` Sergei Shtylyov
2008-06-29 12:49 ` Alan Cox
2008-06-29 13:17 ` Sergei Shtylyov
2008-06-29 14:23 ` Anton Vorontsov
2008-06-28 10:30 ` Sergei Shtylyov
2008-06-28 11:31 ` Anton Vorontsov
2008-06-28 11:52 ` Sergei Shtylyov
2008-06-29 23:26 ` Benjamin Herrenschmidt
2008-06-23 23:52 ` [PATCH -rt] ide: fix interrupts processing issue with preempt-able hardirqs Anton Vorontsov
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