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Re: [PATCH] add dispatch_i8259_irq() to i8259.c

To: Dominic Sweetman <dom@algor.co.uk>
Subject: Re: [PATCH] add dispatch_i8259_irq() to i8259.c
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 17 Dec 2002 19:23:44 +0100
Cc: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>, Jun Sun <jsun@mvista.com>, linux-mips@linux-mips.org
In-reply-to: <15871.13866.515311.16388@arsenal.algor.co.uk>; from dom@algor.co.uk on Tue, Dec 17, 2002 at 02:35:22PM +0000
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20021216124009.D10178@mvista.com> <Pine.GSO.3.96.1021217131352.7289A-100000@delta.ds2.pg.gda.pl> <15871.13866.515311.16388@arsenal.algor.co.uk>
Sender: linux-mips-bounce@linux-mips.org
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On Tue, Dec 17, 2002 at 02:35:22PM +0000, Dominic Sweetman wrote:

> Alternatively, many MIPS systems have a hardware feature which enables
> them to generate imitation-x86 interrupt acknowledge cycles, so you
> can keep the 8259s in complete ignorance that they're not being
> controlled by an x86.  

Unless the hardware is an RM200 where under special circumstances the
hardware acknowledge feature may result in loss of some or all i8259
interrupts until full-reinitialization of the i8259 ...

Bugs, bugs ...

  Ralf

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