1/*- 2 * Copyright (c) 2012 Gleb Smirnoff <glebius@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/11/sys/sys/counter.h 349574 2019-07-01 10:09:19Z ae $ 27 */ 28 29#ifndef __SYS_COUNTER_H__ 30#define __SYS_COUNTER_H__ 31 32typedef uint64_t *counter_u64_t; 33 34#ifdef _KERNEL 35#include <machine/counter.h> 36 37counter_u64_t counter_u64_alloc(int); 38void counter_u64_free(counter_u64_t); 39 40void counter_u64_zero(counter_u64_t); 41uint64_t counter_u64_fetch(counter_u64_t); 42 43#define COUNTER_ARRAY_ALLOC(a, n, wait) do { \ 44 for (int _i = 0; _i < (n); _i++) \ 45 (a)[_i] = counter_u64_alloc(wait); \ 46} while (0) 47 48#define COUNTER_ARRAY_FREE(a, n) do { \ 49 for (int _i = 0; _i < (n); _i++) \ 50 counter_u64_free((a)[_i]); \ 51} while (0) 52 53#define COUNTER_ARRAY_COPY(a, dstp, n) do { \ 54 for (int _i = 0; _i < (n); _i++) \ 55 ((uint64_t *)(dstp))[_i] = counter_u64_fetch((a)[_i]);\ 56} while (0) 57 58#define COUNTER_ARRAY_ZERO(a, n) do { \ 59 for (int _i = 0; _i < (n); _i++) \ 60 counter_u64_zero((a)[_i]); \ 61} while (0) 62#endif /* _KERNEL */ 63#endif /* ! __SYS_COUNTER_H__ */ 64