1292407Sbr/*- 2292407Sbr * Copyright (c) 2001 Jake Burkholder <jake@FreeBSD.org> 3292407Sbr * All rights reserved. 4292407Sbr * 5292407Sbr * Redistribution and use in source and binary forms, with or without 6292407Sbr * modification, are permitted provided that the following conditions 7292407Sbr * are met: 8292407Sbr * 1. Redistributions of source code must retain the above copyright 9292407Sbr * notice, this list of conditions and the following disclaimer. 10292407Sbr * 2. Redistributions in binary form must reproduce the above copyright 11292407Sbr * notice, this list of conditions and the following disclaimer in the 12292407Sbr * documentation and/or other materials provided with the distribution. 13292407Sbr * 14292407Sbr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15292407Sbr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16292407Sbr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17292407Sbr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18292407Sbr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19292407Sbr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20292407Sbr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21292407Sbr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22292407Sbr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23292407Sbr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24292407Sbr * SUCH DAMAGE. 25292407Sbr * 26292407Sbr * $FreeBSD$ 27292407Sbr */ 28292407Sbr 29292407Sbr#ifndef _MACHINE_RUNQ_H_ 30292407Sbr#define _MACHINE_RUNQ_H_ 31292407Sbr 32292407Sbr#define RQB_LEN (1) /* Number of priority status words. */ 33292407Sbr#define RQB_L2BPW (6) /* Log2(sizeof(rqb_word_t) * NBBY)). */ 34292407Sbr#define RQB_BPW (1<<RQB_L2BPW) /* Bits in an rqb_word_t. */ 35292407Sbr 36292407Sbr#define RQB_BIT(pri) (1ul << ((pri) & (RQB_BPW - 1))) 37292407Sbr#define RQB_WORD(pri) ((pri) >> RQB_L2BPW) 38292407Sbr 39292407Sbr#define RQB_FFS(word) (ffsl(word) - 1) 40292407Sbr 41292407Sbr/* 42292407Sbr * Type of run queue status word. 43292407Sbr */ 44292407Sbrtypedef unsigned long rqb_word_t; 45292407Sbr 46292407Sbr#endif 47