/* $NetBSD: cpu.h,v 1.13 2019/12/01 15:34:46 ad Exp $ */

/*-
* Copyright (c) 2007 Jared D. McNeill <[email protected]>
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 _ARCH_USERMODE_INCLUDE_CPU_H
#define _ARCH_USERMODE_INCLUDE_CPU_H

#include <sys/device.h>
#include <sys/cpu_data.h>

#include <machine/intrdefs.h>

extern void     cpu_signotify(struct lwp *);
extern void     cpu_need_proftick(struct lwp *);
extern void     userret(struct lwp *);

#define curcpu()        usermode_curcpu()
#define cpu_number()    0

#define cpu_proc_fork(p1, p2)

struct cpu_info;
extern int      astpending;
#define aston(ci) (astpending++)
extern void kgdb_port_init(void);

struct cpu_info {
       struct cpu_data ci_data;                /* MI per-cpu data */
       device_t        ci_dev;                 /* pointer to our device */
       struct cpu_info *ci_self;
       struct cpu_info *ci_next;
       u_int           ci_cpuid;
       int             ci_want_resched;
       int             ci_idepth;
       volatile int    ci_mtx_count;
       volatile int    ci_mtx_oldspl;
       lwp_t           *ci_onproc;             /* current user LWP / kthread */
       lwp_t           *ci_curlwp;
       lwp_t           *ci_stash;
};

__inline static struct cpu_info * __attribute__((__unused__))
usermode_curcpu(void)
{
       extern struct cpu_info cpu_info_primary;

       return &cpu_info_primary;
}

__inline static void
usermode_delay(unsigned int ms)
{
       extern int thunk_usleep(unsigned int);
       thunk_usleep(ms);
}

#define delay(ms)       usermode_delay(ms)
#define DELAY(ms)       usermode_delay(ms)

/* XXXJDM */
struct clockframe {
       uint8_t cf_dummy;
};

#define CLKF_USERMODE(frame)    0
#define CLKF_PC(frame)          0
#define CLKF_INTR(frame)        0

#endif /* !_ARCH_USERMODE_INCLUDE_CPU_H */