text: /*-
   * Copyright (c) 2001 Jake Burkholder <jake@FreeBSD.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * $FreeBSD: release/9.0.0/sys/amd64/include/runq.h 139731 2005-01-05 20:17:21Z imp $
   */
  
  #ifndef	_MACHINE_RUNQ_H_
  #define	_MACHINE_RUNQ_H_
  
  #define	RQB_LEN		(1)		/* Number of priority status words. */
  #define	RQB_L2BPW	(6)		/* Log2(sizeof(rqb_word_t) * NBBY)). */
  #define	RQB_BPW		(1<<RQB_L2BPW)	/* Bits in an rqb_word_t. */
  
  #define	RQB_BIT(pri)	(1ul << ((pri) & (RQB_BPW - 1)))
  #define	RQB_WORD(pri)	((pri) >> RQB_L2BPW)
  
  #define	RQB_FFS(word)	(bsfq(word))
  
  /*
   * Type of run queue status word.
   */
  typedef	u_int64_t	rqb_word_t;
  
  #endif
  