From: "Mohamed Ghouse , Gurgaon" <MohamedG@ggn.hcltech.com>
To: "Linux-Kernel (E-mail)" <linux-kernel@vger.kernel.org>
Subject: RE: Interrupt Sharing
Date: Wed, 25 Sep 2002 03:10:07 +0530 [thread overview]
Message-ID: <5F0021EEA434D511BE7300D0B7B6AB53050A4C9D@mail2.ggn.hcltech.com> (raw)
But what if two PCI Devices are sharing the same interrupt line?
Then how does the handler handle this?
Can you please explain this handling by the Kernel?
-MG
> -----Original Message-----
> From: Robert Love [mailto:rml@tech9.net]
> Sent: Wednesday, September 25, 2002 2:55 AM
> To: Mohamed "Ghouse , Gurgaon
> Cc: Linux-Kernel (E-mail)
> Subject: Re: Interrupt Sharing
>
>
> On Tue, 2002-09-24 at 17:19, Mohamed Ghouse , Gurgaon wrote:
>
> > Let me Re-Phrase the Question
> > The PCI Interrupts are shareable. How does the Operating
> System(Linux)
> > implement this?
>
> It does not have to do anything special, actually. If
> interrupt n comes
> in, then each handler registered on interrupt n is run.
>
> The incorrect handlers should check for work to do, see none, and
> return. The correct one will actually run.
>
> Robert Love
>
next reply other threads:[~2002-09-24 21:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-24 21:40 Mohamed Ghouse , Gurgaon [this message]
2002-09-25 5:09 ` Interrupt Sharing Zwane Mwaikambo
2002-09-25 8:37 ` Martin Mares
-- strict thread matches above, loose matches on Subject: below --
2002-09-24 21:19 Mohamed Ghouse , Gurgaon
2002-09-24 21:25 ` Robert Love
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5F0021EEA434D511BE7300D0B7B6AB53050A4C9D@mail2.ggn.hcltech.com \
--to=mohamedg@ggn.hcltech.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).