diff options
Diffstat (limited to 'sys/ia64/include/runq.h')
-rw-r--r-- | sys/ia64/include/runq.h | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/sys/ia64/include/runq.h b/sys/ia64/include/runq.h deleted file mode 100644 index c2486d1..0000000 --- a/sys/ia64/include/runq.h +++ /dev/null @@ -1,65 +0,0 @@ -/*- - * 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. - * - * $FreeBSD$ - */ - -#ifndef _MACHINE_RUNQ_H_ -#define _MACHINE_RUNQ_H_ - -#define RQB_LEN (1UL) /* Number of priority status words. */ -#define RQB_L2BPW (6UL) /* Log2(sizeof(rqb_word_t) * NBBY)). */ -#define RQB_BPW (1UL<<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) (__ffsl(word) - 1) - -/* - * Type of run queue status word. - */ -typedef uint64_t rqb_word_t; - -static __inline uint64_t -__popcnt(uint64_t bits) -{ - uint64_t result; - - __asm __volatile("popcnt %0=%1" : "=r" (result) : "r" (bits)); - return result; -} - - -static __inline int -__ffsl(u_long mask) -{ - - if (__predict_false(mask == 0ul)) - return (0); - return (__popcnt(mask ^ (mask - 1))); -} - -#endif |