Re: Potential source of interrupt aliasing

From: M. Warner Losh <imp_at_bsdimp.com>
Date: Mon, 11 Apr 2005 12:04:49 -0600 (MDT)

In message: <200504110231.j3B2VOYr047361_at_apollo.backplane.com>
            Matthew Dillon <dillon_at_apollo.backplane.com> writes:
:     * PCI busses only have 4 interrupt lines (A, B, C, and D).

PCI Slots have only 4 interrupts.  The BUS can have the interrupt
lines wired in an arbitrary manner.  That's why we need to have $PIR
parsing.

Warner

Received on Mon Apr 11 2005 - 16:06:09 UTC

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