From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ronald G Minnich To: <9fans@cse.psu.edu> Subject: Re: [9fans] IRQs again... In-Reply-To: <03e8c204a490c3bc0602f3e1e113b22e@plan9.bell-labs.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Date: Fri, 24 May 2002 20:26:35 -0600 Topicbox-Message-UUID: 9be618d8-eaca-11e9-9e20-41e7f4b1d025 On Fri, 24 May 2002, David Gordon Hogan wrote: > I've looked at the Linux code. They actually use a heuristic to allocate > IRQs, giving preference to ones that are unlikely to be used by something > else. Frankly, I'm scared to go there! All of our machines have a BIOS, > and it has not been necessary for us to do our own IRQ allocation. But > is this good enough? sooner or later, with hot plug happening, the OSes will have to play this fun game. LinuxBIOS got us there early in this case. But I think doing interrupt allocation and setup in the OS is inevitable. ron