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      1 /*	$NetBSD: xcall.h,v 1.8 2019/10/06 15:11:16 uwe Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _SYS_XCALL_H_
     33 #define	_SYS_XCALL_H_
     34 
     35 #ifdef _KERNEL
     36 
     37 #include <sys/types.h>
     38 
     39 #define XC_HIGHPRI		0x01	/* high priority */
     40 #define XC_HIGHPRI_IPL(ipl)	(XC_HIGHPRI | xc_encode_ipl(ipl))
     41 
     42 typedef void (*xcfunc_t)(void *, void *);
     43 
     44 struct cpu_info;
     45 
     46 void		xc_init_cpu(struct cpu_info *);
     47 void		xc_send_ipi(struct cpu_info *);
     48 void		xc_ipi_handler(void);
     49 
     50 void		xc__highpri_intr(void *);
     51 
     52 uint64_t	xc_broadcast(u_int, xcfunc_t, void *, void *);
     53 uint64_t	xc_unicast(u_int, xcfunc_t, void *, void *, struct cpu_info *);
     54 void		xc_wait(uint64_t);
     55 
     56 void		xc_barrier(u_int);
     57 
     58 unsigned int	xc_encode_ipl(int);
     59 
     60 #endif	/* _KERNEL */
     61 
     62 #endif	/* _SYS_XCALL_H_ */
     63