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      1 /* $NetBSD: ipivar.h,v 1.12 2020/04/16 23:29:52 rin Exp $ */
      2 /*-
      3  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Tim Rightnour
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: ipivar.h,v 1.12 2020/04/16 23:29:52 rin Exp $");
     33 
     34 #ifndef _IPI_VAR_H_
     35 #define _IPI_VAR_H_
     36 
     37 #ifdef _KERNEL_OPT
     38 #include "opt_ppcarch.h"
     39 #endif
     40 
     41 #if defined(_KERNEL) && !defined(PPC_BOOKE)
     42 struct ipi_ops {
     43 	void (*ppc_send_ipi)(cpuid_t, uint32_t);
     44 	/* type, level, arg */
     45 	void (*ppc_establish_ipi)(int, int, void *);
     46 	int ppc_ipi_vector;
     47 };
     48 
     49 /* target macros, 0+ are real cpu numbers */
     50 #define IPI_DST_ALL	((cpuid_t) -2)
     51 #define IPI_DST_NOTME	((cpuid_t) -1)
     52 
     53 #define IPI_NOMESG		0x0000
     54 #define IPI_HALT		0x0001
     55 #define IPI_XCALL		0x0002
     56 #define IPI_KPREEMPT		0x0004
     57 #define IPI_GENERIC		0x0008
     58 #define IPI_SUSPEND		0x0010
     59 #define	IPI_AST			0x0020
     60 
     61 /* OpenPIC */
     62 void setup_openpic_ipi(void);
     63 
     64 /* IPI Handler */
     65 int ipi_intr(void *);
     66 
     67 /* convenience */
     68 extern struct ipi_ops ipiops;
     69 
     70 static __inline void
     71 cpu_send_ipi(cpuid_t cpuid, uint32_t msg)
     72 {
     73 	(*ipiops.ppc_send_ipi)(cpuid, msg);
     74 }
     75 #endif
     76 
     77 #endif /*_IPI_VAR_H_*/
     78