Date: Wed, 15 Aug 2001 06:02:40 -0600 (MDT) From: <janb@cs.utep.edu> To: Mike Smith <msmith@freebsd.org> Cc: <hackers@freebsd.org> Subject: Re: more Newbus questions Message-ID: <Pine.GSO.4.30.0108150527430.19513-100000@gecko> In-Reply-To: <200108142302.f7EN1w403960@mass.dis.org>
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> None of these are newbus items. Interrupt dispatch is not managed by > newbus (due to the costs involved). Instead, interrupts are attached > with bus_setup_intr, which forwards the interrupt handler and argument > to platform-specific code. The resource mananger is involved (since > interrupts are a managed resource), and interrupts must be allocated > using bus_alloc_resource before being set up. > Could you possibly go over how this works on the i386. Is there a global structure that keeps track of all allocated IRQs and interrupt handling routines? What I really need, is to find out, where this structure is built, so that at this point, I can instead build the structure that xmach needs. Or, alternatively, I can wait until that structure is done, and then make the xmach structure from that... Thanks again, JAn To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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