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ipivar.h revision 1.5 
      1 /* $NetBSD: ipivar.h,v 1.5 2011/06/05 16:52:26 matt 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 1.5 2011/06/05 16:52:26 matt Exp $");
     33 
     34 #ifndef _IPI_VAR_H_
     35 #define _IPI_VAR_H_
     36 
     37 struct ipi_ops {
     38 	void (*ppc_send_ipi)(cpuid_t, uint32_t);
     39 	/* type, level, arg */
     40 	void (*ppc_establish_ipi)(int, int, void *);
     41 	int ppc_ipi_vector;
     42 };
     43 
     44 /* target macros, 0+ are real cpu numbers */
     45 #define IPI_DST_ALL	((cpuid_t) -2)
     46 #define IPI_DST_NOTME	((cpuid_t) -1)
     47 
     48 #define IPI_NOMESG		0x0000
     49 #define IPI_HALT		0x0001
     50 #define IPI_XCALL		0x0002
     51 #define IPI_KPREEMPT		0x0004
     52 
     53 /* OpenPIC */
     54 void setup_openpic_ipi(void);
     55 
     56 /* IPI Handler */
     57 int ipi_intr(void *);
     58 
     59 /* convenience */
     60 extern struct ipi_ops ipiops;
     61 
     62 static inline void
     63 cpu_send_ipi(cpuid_t cpuid, uint32_t msg)
     64 {
     65 	(*ipiops.ppc_send_ipi)(cpuid, msg);
     66 }
     67 
     68 #endif /*_IPI_VAR_H_*/
     69