mirror of https://github.com/F-Stack/f-stack.git
127 lines
5.1 KiB
C
127 lines
5.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2017, Jeffrey Roberson <jeff@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_DOMAINSET_H_
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#define _SYS_DOMAINSET_H_
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#include <sys/_domainset.h>
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#include <sys/bitset.h>
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#include <sys/queue.h>
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#define _NDOMAINSETBITS _BITSET_BITS
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#define _NDOMAINSETWORDS __bitset_words(DOMAINSET_SETSIZE)
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#define DOMAINSETBUFSIZ \
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(((2 + sizeof(long) * 2) * _NDOMAINSETWORDS) + \
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sizeof("::") + sizeof(__XSTRING(DOMAINSET_POLICY_MAX)) + \
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sizeof(__XSTRING(MAXMEMDOM)))
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#define DOMAINSET_CLR(n, p) BIT_CLR(DOMAINSET_SETSIZE, n, p)
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#define DOMAINSET_COPY(f, t) BIT_COPY(DOMAINSET_SETSIZE, f, t)
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#define DOMAINSET_ISSET(n, p) BIT_ISSET(DOMAINSET_SETSIZE, n, p)
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#define DOMAINSET_SET(n, p) BIT_SET(DOMAINSET_SETSIZE, n, p)
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#define DOMAINSET_ZERO(p) BIT_ZERO(DOMAINSET_SETSIZE, p)
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#define DOMAINSET_FILL(p) BIT_FILL(DOMAINSET_SETSIZE, p)
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#define DOMAINSET_SETOF(n, p) BIT_SETOF(DOMAINSET_SETSIZE, n, p)
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#define DOMAINSET_EMPTY(p) BIT_EMPTY(DOMAINSET_SETSIZE, p)
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#define DOMAINSET_ISFULLSET(p) BIT_ISFULLSET(DOMAINSET_SETSIZE, p)
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#define DOMAINSET_SUBSET(p, c) BIT_SUBSET(DOMAINSET_SETSIZE, p, c)
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#define DOMAINSET_OVERLAP(p, c) BIT_OVERLAP(DOMAINSET_SETSIZE, p, c)
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#define DOMAINSET_CMP(p, c) BIT_CMP(DOMAINSET_SETSIZE, p, c)
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#define DOMAINSET_OR(d, s) BIT_OR(DOMAINSET_SETSIZE, d, s)
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#define DOMAINSET_AND(d, s) BIT_AND(DOMAINSET_SETSIZE, d, s)
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#define DOMAINSET_ANDNOT(d, s) BIT_ANDNOT(DOMAINSET_SETSIZE, d, s)
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#define DOMAINSET_CLR_ATOMIC(n, p) BIT_CLR_ATOMIC(DOMAINSET_SETSIZE, n, p)
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#define DOMAINSET_SET_ATOMIC(n, p) BIT_SET_ATOMIC(DOMAINSET_SETSIZE, n, p)
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#define DOMAINSET_SET_ATOMIC_ACQ(n, p) \
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BIT_SET_ATOMIC_ACQ(DOMAINSET_SETSIZE, n, p)
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#define DOMAINSET_AND_ATOMIC(n, p) BIT_AND_ATOMIC(DOMAINSET_SETSIZE, n, p)
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#define DOMAINSET_OR_ATOMIC(d, s) BIT_OR_ATOMIC(DOMAINSET_SETSIZE, d, s)
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#define DOMAINSET_COPY_STORE_REL(f, t) \
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BIT_COPY_STORE_REL(DOMAINSET_SETSIZE, f, t)
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#define DOMAINSET_FFS(p) BIT_FFS(DOMAINSET_SETSIZE, p)
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#define DOMAINSET_FLS(p) BIT_FLS(DOMAINSET_SETSIZE, p)
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#define DOMAINSET_COUNT(p) ((int)BIT_COUNT(DOMAINSET_SETSIZE, p))
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#define DOMAINSET_FSET BITSET_FSET(_NDOMAINSETWORDS)
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#define DOMAINSET_T_INITIALIZER BITSET_T_INITIALIZER
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#define DOMAINSET_POLICY_INVALID 0
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#define DOMAINSET_POLICY_ROUNDROBIN 1
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#define DOMAINSET_POLICY_FIRSTTOUCH 2
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#define DOMAINSET_POLICY_PREFER 3
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#define DOMAINSET_POLICY_INTERLEAVE 4
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#define DOMAINSET_POLICY_MAX DOMAINSET_POLICY_INTERLEAVE
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#ifdef _KERNEL
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#if MAXMEMDOM < 256
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typedef uint8_t domainid_t;
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#else
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typedef uint16_t domainid_t;
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#endif
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struct domainset {
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LIST_ENTRY(domainset) ds_link;
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domainset_t ds_mask; /* allowed domains. */
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uint16_t ds_policy; /* Policy type. */
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domainid_t ds_prefer; /* Preferred domain or -1. */
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domainid_t ds_cnt; /* popcnt from above. */
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domainid_t ds_order[MAXMEMDOM]; /* nth domain table. */
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};
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extern struct domainset domainset_fixed[MAXMEMDOM], domainset_prefer[MAXMEMDOM];
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#define DOMAINSET_FIXED(domain) (&domainset_fixed[(domain)])
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#define DOMAINSET_PREF(domain) (&domainset_prefer[(domain)])
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extern struct domainset domainset_roundrobin;
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#define DOMAINSET_RR() (&domainset_roundrobin)
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void domainset_init(void);
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void domainset_zero(void);
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/*
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* Add a domainset to the system based on a key initializing policy, prefer,
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* and mask. Do not create and directly use domainset structures. The
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* returned value will not match the key pointer.
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*/
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struct domainset *domainset_create(const struct domainset *);
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#ifdef _SYS_SYSCTL_H_
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int sysctl_handle_domainset(SYSCTL_HANDLER_ARGS);
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#endif
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#else
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__BEGIN_DECLS
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int cpuset_getdomain(cpulevel_t, cpuwhich_t, id_t, size_t, domainset_t *,
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int *);
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int cpuset_setdomain(cpulevel_t, cpuwhich_t, id_t, size_t,
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const domainset_t *, int);
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__END_DECLS
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#endif
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#endif /* !_SYS_DOMAINSET_H_ */
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