Home | History | Annotate | Line # | Download | only in include
intr.h revision 1.55 
      1 /*	$NetBSD: intr.h,v 1.55 2020/04/25 15:26:17 bouyer Exp $	*/
      2 /*	NetBSD intr.h,v 1.15 2004/10/31 10:39:34 yamt Exp	*/
      3 
      4 /*-
      5  * Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to The NetBSD Foundation
      9  * by Charles M. Hannum, and by Jason R. Thorpe.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef _XEN_INTR_H_
     34 #define	_XEN_INTR_H_
     35 
     36 #include <xen/intrdefs.h>
     37 
     38 #ifndef _LOCORE
     39 #include <xen/include/public/xen.h>
     40 #include <xen/include/public/event_channel.h>
     41 #include <x86/intr.h>
     42 #include <xen/xen.h>
     43 #include <xen/hypervisor.h>
     44 #include <machine/pic.h>
     45 #include <sys/evcnt.h>
     46 
     47 #include "opt_xen.h"
     48 
     49 
     50 struct cpu_info;
     51 /*
     52  * Struct describing an event channel.
     53  */
     54 
     55 struct evtsource {
     56 	int ev_maxlevel;		/* max. IPL for this source */
     57 	uint32_t ev_imask;		/* interrupt mask */
     58 	struct intrhand *ev_handlers;	/* handler chain */
     59 	struct evcnt ev_evcnt;		/* interrupt counter */
     60 	struct cpu_info *ev_cpu;        /* cpu on which this event is bound */
     61 	char ev_intrname[INTRIDBUF];	/* interrupt string */
     62 	char ev_xname[INTRDEVNAMEBUF];	/* handler device list */
     63 	struct intrsource *ev_isl;	/* entry in intr sources list */
     64 };
     65 
     66 extern struct intrstub xenev_stubs[];
     67 extern int irq2port[NR_EVENT_CHANNELS]; /* actually port + 1, so that 0 is invaid */
     68 
     69 #ifdef MULTIPROCESSOR
     70 int xen_intr_biglock_wrapper(void *);
     71 #endif
     72 
     73 #if defined(DOM0OPS) || NPCI > 0
     74 int xen_vec_alloc(int);
     75 int xen_pic_to_gsi(struct pic *, int);
     76 #endif /* defined(DOM0OPS) || NPCI > 0 */
     77 
     78 #ifdef MULTIPROCESSOR
     79 void xen_ipi_init(void);
     80 int xen_send_ipi(struct cpu_info *, uint32_t);
     81 void xen_broadcast_ipi(uint32_t);
     82 #else
     83 #define xen_ipi_init(_1) ((void) 0) /* nothing */
     84 #define xen_send_ipi(_i1, _i2) (0) /* nothing */
     85 #define xen_broadcast_ipi(_i1) ((void) 0) /* nothing */
     86 #endif /* MULTIPROCESSOR */
     87 
     88 void *xen_intr_establish_xname(int, struct pic *, int, int, int, int (*)(void *),
     89     void *, bool, const char *);
     90 void *xen_intr_establish(int, struct pic *, int, int, int, int (*)(void *),
     91     void *, bool);
     92 void xen_intr_mask(struct intrhand *);
     93 void xen_intr_unmask(struct intrhand *);
     94 void xen_intr_disestablish(struct intrhand *);
     95 
     96 struct intrsource *xen_intr_allocate_io_intrsource(const char *);
     97 void xen_intr_free_io_intrsource(const char *);
     98 
     99 #endif /* !_LOCORE */
    100 
    101 #endif /* _XEN_INTR_H_ */
    102