/* $NetBSD: ipivar.h,v 1.12 2020/04/16 23:29:52 rin Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tim Rightnour
*
* 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ipivar.h,v 1.12 2020/04/16 23:29:52 rin Exp $");

#ifndef _IPI_VAR_H_
#define _IPI_VAR_H_

#ifdef _KERNEL_OPT
#include "opt_ppcarch.h"
#endif

#if defined(_KERNEL) && !defined(PPC_BOOKE)
struct ipi_ops {
       void (*ppc_send_ipi)(cpuid_t, uint32_t);
       /* type, level, arg */
       void (*ppc_establish_ipi)(int, int, void *);
       int ppc_ipi_vector;
};

/* target macros, 0+ are real cpu numbers */
#define IPI_DST_ALL     ((cpuid_t) -2)
#define IPI_DST_NOTME   ((cpuid_t) -1)

#define IPI_NOMESG              0x0000
#define IPI_HALT                0x0001
#define IPI_XCALL               0x0002
#define IPI_KPREEMPT            0x0004
#define IPI_GENERIC             0x0008
#define IPI_SUSPEND             0x0010
#define IPI_AST                 0x0020

/* OpenPIC */
void setup_openpic_ipi(void);

/* IPI Handler */
int ipi_intr(void *);

/* convenience */
extern struct ipi_ops ipiops;

static __inline void
cpu_send_ipi(cpuid_t cpuid, uint32_t msg)
{
       (*ipiops.ppc_send_ipi)(cpuid, msg);
}
#endif

#endif /*_IPI_VAR_H_*/