minix/sys/sys/cpu.h
Ben Gras 6c8f7fc3ba netbsd dirent.h, import sys/sys *.h, mfs cleanup
. add all sys/sys headers not already present to help compiling
	. take netbsd dirent.h and struct dirent; main result is
	  introducing d_type and d_namlen that have to be set by getdents()
	  in all FS code implementing it
	. d_off is gone
	. alignment of the struct has become 8 bytes instead of 4
	. remove _MAX_BLOCK_SIZE, _MIN_BLOCK_SIZE, _STATIC_BLOCK_SIZE
	. libminlib: cleanup unused yet duplicate code
	. mfs: throw out the long-broken v1, v2 support
	. new test for dirent contents filled by getdents()

Change-Id: I1459755c7ba5e5d1c9396d3a587ce6e63ddc283e
2014-03-01 09:04:59 +01:00

141 lines
3.9 KiB
C

/* $NetBSD: cpu.h,v 1.36 2012/08/29 17:13:22 drochner 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>
/* XXX ifdef COMPAT */
#include <compat/sys/cpuio.h>
#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
CIRCLEQ_HEAD(cpuqueue, cpu_info);
#ifdef _KERNEL
extern kmutex_t cpu_lock;
extern u_int maxcpus;
extern struct cpuqueue cpu_queue;
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 *);
/* XXX ifdef COMPAT */
int compat6_cpu_ucode_get_version(struct compat6_cpu_ucode *);
int cpu_ucode_apply(const struct cpu_ucode *);
/* XXX ifdef COMPAT */
int compat6_cpu_ucode_apply(const struct compat6_cpu_ucode *);
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_ */