linux-mips
[Top] [All Lists]

Re: [PATCH] Make interrupt handler works for all cases

To: "Thiemo Seufer" <ths@networkno.de>
Subject: Re: [PATCH] Make interrupt handler works for all cases
From: "Franck Bui-Huu" <vagabon.xyz@gmail.com>
Date: Tue, 2 May 2006 19:48:38 +0200
Cc: "Ralf Baechle" <ralf@linux-mips.org>, linux-mips <linux-mips@linux-mips.org>
Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=oTjLmKCpqcD6oGOvHoem4f48R6jemjA/EVSeVO4qDzUqbNU6clrcMK+i9O/jWsIXqJ4IqJMysgLJ9AvC7vwRY/T1jYK5Bcd/lNJ4cRgssPH3fqKh1Iy9NgycYJ1FGjkw1YxUKwzlEPYDkDnFztjM6oV6S4cXdo1CJ4EXbmX7kw8=
In-reply-to: <20060502104441.GA5004@networkno.de>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <cda58cb80605020055r2597bf3ds9fb380aab8cbf7b3@mail.gmail.com> <20060502094123.GB4301@linux-mips.org> <cda58cb80605020330hfd0352ds11f7f80603092cde@mail.gmail.com> <20060502104441.GA5004@networkno.de>
Sender: linux-mips-bounce@linux-mips.org
2006/5/2, Thiemo Seufer <ths@networkno.de>:
Franck Bui-Huu wrote:
> 2006/5/2, Ralf Baechle <ralf@linux-mips.org>:
> >On Tue, May 02, 2006 at 09:55:51AM +0200, Franck Bui-Huu wrote:
> >
> >> specially when the kernel is mapped.
> >
> >At which time you're on very fragile ice because TLB instructions should
> >better be executed from an unmapped address ...
> >
>
> well TLB entry used by the kernel is wired, so it should work fined,
> shouldn't it ?

The architecture spec doesn't guarantee it will.


having a quick look at the TLB handling code, it seems that the code
assumes it will...

--
              Franck

<Prev in Thread] Current Thread [Next in Thread>