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      1 /*	$NetBSD: irq_work.h,v 1.6 2021/12/19 11:49:57 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2020 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _LINUX_IRQ_WORK_H
     30 #define _LINUX_IRQ_WORK_H
     31 
     32 #include <sys/queue.h>
     33 #include <sys/stdbool.h>
     34 
     35 #include <asm/cpufeature.h>
     36 
     37 /* namespace */
     38 #define	init_irq_work	linux_init_irq_work
     39 #define	irq_work_queue	linux_irq_work_queue
     40 
     41 struct irq_work {
     42 	SIMPLEQ_ENTRY(irq_work)	iw_entry;
     43 	volatile unsigned	iw_flags;
     44 
     45 	/* Linux API */
     46 	void			(*func)(struct irq_work *);
     47 };
     48 
     49 void	init_irq_work(struct irq_work *, void (*)(struct irq_work *));
     50 bool	irq_work_queue(struct irq_work *);
     51 
     52 void	linux_irq_work_init(void);
     53 void	linux_irq_work_fini(void);
     54 
     55 #endif  /* _LINUX_IRQ_WORK_H */
     56