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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
* Copyright (c) Peter Wemm <peter@netplex.com.au>
* 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.
*
* from: src/sys/alpha/include/pcpu.h,v 1.15 2004/11/05 19:16:44 jhb
* $FreeBSD$
*/
#ifndef _MACHINE_PCPU_H_
#define _MACHINE_PCPU_H_
#include <machine/cpufunc.h>
#include <machine/pte.h>
#define PCPU_MD_COMMON_FIELDS \
pd_entry_t *pc_segbase; /* curthread segbase */ \
struct pmap *pc_curpmap; /* pmap of curthread */ \
u_int32_t pc_next_asid; /* next ASID to alloc */ \
u_int32_t pc_asid_generation; /* current ASID generation */ \
u_int pc_pending_ipis; /* IPIs pending to this CPU */ \
struct pcpu *pc_self; /* globally-uniqe self pointer */
#ifdef __mips_n64
#define PCPU_MD_MIPS64_FIELDS \
PCPU_MD_COMMON_FIELDS \
char __pad[245]
#else
#define PCPU_MD_MIPS32_FIELDS \
PCPU_MD_COMMON_FIELDS \
char __pad[125]
#endif
#ifdef __mips_n64
#define PCPU_MD_FIELDS PCPU_MD_MIPS64_FIELDS
#else
#define PCPU_MD_FIELDS PCPU_MD_MIPS32_FIELDS
#endif
#ifdef _KERNEL
extern char pcpu_space[MAXCPU][PAGE_SIZE * 2];
#define PCPU_ADDR(cpu) (struct pcpu *)(pcpu_space[(cpu)])
extern struct pcpu *pcpup;
#define PCPUP pcpup
/*
* Since we use a wired TLB entry to map the same VA to a different
* physical page for each CPU, get_pcpu() must use the pc_self
* field to obtain a globally-unique pointer.
*/
#define get_pcpu() (PCPUP->pc_self)
#define PCPU_ADD(member, value) (PCPUP->pc_ ## member += (value))
#define PCPU_GET(member) (PCPUP->pc_ ## member)
#define PCPU_INC(member) PCPU_ADD(member, 1)
#define PCPU_PTR(member) (&PCPUP->pc_ ## member)
#define PCPU_SET(member,value) (PCPUP->pc_ ## member = (value))
#define PCPU_LAZY_INC(member) (++PCPUP->pc_ ## member)
#ifdef SMP
/*
* Instantiate the wired TLB entry at PCPU_TLB_ENTRY to map 'pcpu' at 'pcpup'.
*/
void mips_pcpu_tlb_init(struct pcpu *pcpu);
#endif
#endif /* _KERNEL */
#endif /* !_MACHINE_PCPU_H_ */
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