xref: /freebsd/sys/arm64/include/runq.h (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)
1412042e2SAndrew Turner /*-
2412042e2SAndrew Turner  * Copyright (c) 2001 Jake Burkholder <jake@FreeBSD.org>
3412042e2SAndrew Turner  * All rights reserved.
4412042e2SAndrew Turner  *
5412042e2SAndrew Turner  * Redistribution and use in source and binary forms, with or without
6412042e2SAndrew Turner  * modification, are permitted provided that the following conditions
7412042e2SAndrew Turner  * are met:
8412042e2SAndrew Turner  * 1. Redistributions of source code must retain the above copyright
9412042e2SAndrew Turner  *    notice, this list of conditions and the following disclaimer.
10412042e2SAndrew Turner  * 2. Redistributions in binary form must reproduce the above copyright
11412042e2SAndrew Turner  *    notice, this list of conditions and the following disclaimer in the
12412042e2SAndrew Turner  *    documentation and/or other materials provided with the distribution.
13412042e2SAndrew Turner  *
14412042e2SAndrew Turner  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15412042e2SAndrew Turner  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16412042e2SAndrew Turner  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17412042e2SAndrew Turner  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18412042e2SAndrew Turner  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19412042e2SAndrew Turner  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20412042e2SAndrew Turner  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21412042e2SAndrew Turner  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22412042e2SAndrew Turner  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23412042e2SAndrew Turner  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24412042e2SAndrew Turner  * SUCH DAMAGE.
25412042e2SAndrew Turner  */
26412042e2SAndrew Turner 
27*d5d97bedSMike Karels #ifdef __arm__
28*d5d97bedSMike Karels #include <arm/runq.h>
29*d5d97bedSMike Karels #else /* !__arm__ */
30*d5d97bedSMike Karels 
31412042e2SAndrew Turner #ifndef	_MACHINE_RUNQ_H_
32412042e2SAndrew Turner #define	_MACHINE_RUNQ_H_
33412042e2SAndrew Turner 
34412042e2SAndrew Turner #define	RQB_LEN		(1)		/* Number of priority status words. */
35412042e2SAndrew Turner #define	RQB_L2BPW	(6)		/* Log2(sizeof(rqb_word_t) * NBBY)). */
36412042e2SAndrew Turner #define	RQB_BPW		(1<<RQB_L2BPW)	/* Bits in an rqb_word_t. */
37412042e2SAndrew Turner 
38412042e2SAndrew Turner #define	RQB_BIT(pri)	(1ul << ((pri) & (RQB_BPW - 1)))
39412042e2SAndrew Turner #define	RQB_WORD(pri)	((pri) >> RQB_L2BPW)
40412042e2SAndrew Turner 
41412042e2SAndrew Turner #define	RQB_FFS(word)	(ffsl(word) - 1)
42412042e2SAndrew Turner 
43412042e2SAndrew Turner /*
44412042e2SAndrew Turner  * Type of run queue status word.
45412042e2SAndrew Turner  */
46412042e2SAndrew Turner typedef	unsigned long	rqb_word_t;
47412042e2SAndrew Turner 
48412042e2SAndrew Turner #endif
49*d5d97bedSMike Karels 
50*d5d97bedSMike Karels #endif /* !__arm__ */
51