1.\" $NetBSD: interrupt_distribute.9,v 1.1 2015/08/17 06:28:11 knakahara Exp $ 2.\" 3.\" Copyright (c) 2015 Internet Initiative Japan Inc. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25.\" POSSIBILITY OF SUCH DAMAGE. 26.\" 27.Dd August 17, 2015 28.Dt INTERRUPT_DISTRIBUTE 9 29.Os 30.Sh NAME 31.Nm interrupt_distribute 32.Sh SYNOPSIS 33.In sys/interrupt.h 34.Ft int 35.Fn interrupt_distribute "void *ich" "const kcpuset_t *newset" \ 36"kcpuset_t *oldset" 37.Sh DESCRIPTION 38The 39.Nm 40function exists to assign an interrupt to a CPU. 41.Pp 42If a driver (or the other kernel component) wishes to assign an 43interrupt to a CPU, it should pass a interrupt handler such as 44the return value of 45.Fn pci_intr_establish 46as 47.Fa ich 48argument, and it should pass the kcpuset to which it should be 49assigned as 50.Fa newset . 51To get the previous value, pass a 52.Pf non- Dv NULL 53value to 54.Ft oldset . 55