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RE: Interrupt handling....

To: Matthew Dharm <mdharm@momenco.com>
Subject: RE: Interrupt handling....
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Date: Thu, 5 Sep 2002 11:04:14 +0200 (MET DST)
Cc: Dominic Sweetman <dom@algor.co.uk>, Jun Sun <jsun@mvista.com>, Linux-MIPS <linux-mips@linux-mips.org>
In-reply-to: <NEBBLJGMNKKEEMNLHGAIEEMFCIAA.mdharm@momenco.com>
Organization: Technical University of Gdansk
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
On Wed, 4 Sep 2002, Matthew Dharm wrote:

> Okay... What type of information do you need?

 Well, first check if a PTE is indeed installed by ioremap() in the table. 
If so, the what happens at the access time -- what exceptions, what are
the contents of the related registers, what does exist in the TLB, etc.
You don't need to go to the IRQ handler at first -- it might be easier to
get such things if you deliberately access the location from elsewhere,
e.g. from the setup code right after ioremap().

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


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