minix/sys/sys/cpu.h
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

139 lines
3.9 KiB
C

/* $NetBSD: cpu.h,v 1.39 2013/11/25 03:06:08 christos Exp $ */
/*-
* Copyright (c) 2007 YAMAMOTO Takashi,
* 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.
*/
#ifndef _SYS_CPU_H_
#define _SYS_CPU_H_
#ifndef _LOCORE
#include <machine/cpu.h>
#include <sys/lwp.h>
struct cpu_info;
#ifdef _KERNEL
#ifndef cpu_idle
void cpu_idle(void);
#endif
#ifdef CPU_UCODE
#include <sys/cpuio.h>
#include <dev/firmload.h>
#ifdef COMPAT_60
#include <compat/sys/cpuio.h>
#endif
#endif
/*
* cpu_need_resched() must always be called with the target CPU
* locked (via spc_lock() or another route), unless called locally.
* If called locally, the caller need only be at IPL_SCHED.
*/
#ifndef cpu_need_resched
void cpu_need_resched(struct cpu_info *, int);
#endif
#ifndef cpu_did_resched
#define cpu_did_resched(l) /* nothing */
#endif
#ifndef CPU_INFO_ITERATOR
#define CPU_INFO_ITERATOR int
#define CPU_INFO_FOREACH(cii, ci) \
(void)cii, ci = curcpu(); ci != NULL; ci = NULL
#endif
#ifndef CPU_IS_PRIMARY
#define CPU_IS_PRIMARY(ci) ((void)ci, 1)
#endif
#ifdef __HAVE_MD_CPU_OFFLINE
void cpu_offline_md(void);
#endif
struct lwp *cpu_switchto(struct lwp *, struct lwp *, bool);
struct cpu_info *cpu_lookup(u_int);
int cpu_setstate(struct cpu_info *, bool);
int cpu_setintr(struct cpu_info *, bool);
bool cpu_intr_p(void);
bool cpu_softintr_p(void);
bool cpu_kpreempt_enter(uintptr_t, int);
void cpu_kpreempt_exit(uintptr_t);
bool cpu_kpreempt_disabled(void);
int cpu_lwp_setprivate(struct lwp *, void *);
void cpu_intr_redistribute(void);
u_int cpu_intr_count(struct cpu_info *);
#endif
#ifdef _KERNEL
extern kmutex_t cpu_lock;
extern u_int maxcpus;
extern struct cpu_info **cpu_infos;
extern kcpuset_t *kcpuset_attached;
extern kcpuset_t *kcpuset_running;
static inline u_int
cpu_index(struct cpu_info *ci)
{
return ci->ci_index;
}
static inline char *
cpu_name(struct cpu_info *ci)
{
return ci->ci_data.cpu_name;
}
#ifdef CPU_UCODE
struct cpu_ucode_softc {
int loader_version;
char *sc_blob;
off_t sc_blobsize;
};
int cpu_ucode_get_version(struct cpu_ucode_version *);
int cpu_ucode_apply(const struct cpu_ucode *);
#ifdef COMPAT_60
int compat6_cpu_ucode_get_version(struct compat6_cpu_ucode *);
int compat6_cpu_ucode_apply(const struct compat6_cpu_ucode *);
#endif
int cpu_ucode_load(struct cpu_ucode_softc *, const char *);
int cpu_ucode_md_open(firmware_handle_t *, int, const char *);
#endif
#endif
#endif /* !_LOCORE */
/* flags for cpu_need_resched */
#define RESCHED_LAZY 0x01 /* request a ctx switch */
#define RESCHED_IMMED 0x02 /* request an immediate ctx switch */
#define RESCHED_KPREEMPT 0x04 /* request in-kernel preemption */
#endif /* !_SYS_CPU_H_ */