Home | History | Annotate | Line # | Download | only in marvell
marvell_intr.h revision 1.17 
      1 /*	$NetBSD: marvell_intr.h,v 1.17 2010/04/28 13:51:55 kiyohara Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Charles M. Hannum.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _POWERPC_MARVELL_INTR_H_
     33 #define _POWERPC_MARVELL_INTR_H_
     34 
     35 void *intr_establish(int, int, int, int (*)(void *), void *);
     36 void intr_disestablish(void *);
     37 const char *intr_typename(int);
     38 void genppc_cpu_configure(void);
     39 
     40 /* Interrupt priority `levels'. */
     41 #define	IPL_NONE	0	/* nothing */
     42 #define	IPL_SOFTCLOCK	1	/* timeouts */
     43 #define	IPL_SOFTBIO	2	/* block I/O */
     44 #define	IPL_SOFTNET	3	/* protocol stacks */
     45 #define	IPL_SOFTSERIAL	4	/* serial */
     46 #define	IPL_VM		5	/* memory allocation */
     47 #define	IPL_SCHED	6
     48 #define	IPL_HIGH	7	/* everything */
     49 #define	NIPL		8
     50 
     51 /* Interrupt sharing types. */
     52 #define	IST_NONE	0	/* none */
     53 #define	IST_PULSE	1	/* pulsed */
     54 #define	IST_EDGE	2	/* edge-triggered */
     55 #define	IST_LEVEL	3	/* level-triggered */
     56 
     57 #ifndef _LOCORE
     58 /*
     59  * Interrupt handler chains.  intr_establish() inserts a handler into
     60  * the list.  The handler is called with its (single) argument.
     61  */
     62 struct intrhand {
     63 	int	(*ih_fun)(void *);
     64 	void	*ih_arg;
     65 	struct	intrhand *ih_next;
     66 	int	ih_level;
     67 	int	ih_irq;
     68 };
     69 
     70 int splraise(int);
     71 int spllower(int);
     72 void splx(int);
     73 void softintr(int);
     74 
     75 typedef uint64_t imask_t;
     76 extern imask_t imask[];
     77 
     78 #define NVIRQ		64	/* 64 virtual IRQs */
     79 #define NIRQ		128	/* up to 128 HW IRQs */
     80 
     81 #define HWIRQ_MAX       (NVIRQ - 4 - 1)
     82 #define HWIRQ_MASK      0x0ffffffffffffffeULL
     83 
     84 /* Soft interrupt masks. */
     85 #define SIR_CLOCK	60
     86 #define SIR_BIO		61
     87 #define SIR_NET		62
     88 #define SIR_SERIAL	63
     89 #define SPL_CLOCK	0
     90 
     91 #define MS_PENDING(p)	(((p) & (1 << SPL_CLOCK)) ? SPL_CLOCK : \
     92 			    (((p) & (0xffffffffULL << 32)) ? \
     93 						63 - cntlzw((p) >> 32) : \
     94 						32 - cntlzw((p) & 0xffffffff)))
     95 
     96 #define setsoftclock()	softintr(SIR_CLOCK)
     97 #define setsoftbio()	softintr(SIR_BIO)
     98 #define setsoftnet()	softintr(SIR_NET)
     99 #define setsoftserial()	softintr(SIR_SERIAL)
    100 
    101 #define spl0()		spllower(0)
    102 
    103 typedef int ipl_t;
    104 typedef struct {
    105 	ipl_t _ipl;
    106 } ipl_cookie_t;
    107 
    108 static inline ipl_cookie_t
    109 makeiplcookie(ipl_t ipl)
    110 {
    111 
    112 	return (ipl_cookie_t){._ipl = ipl};
    113 }
    114 
    115 static inline int
    116 splraiseipl(ipl_cookie_t icookie)
    117 {
    118 
    119 	return splraise(icookie._ipl);
    120 }
    121 
    122 #include <sys/spl.h>
    123 
    124 #define ICU_LEN		(64 + 32)	/* Main Interrupt(64) + GPIO(32) */
    125 
    126 extern struct pic_ops *discovery_pic;
    127 extern struct pic_ops *discovery_gpp_pic[4];
    128 struct pic_ops *setup_discovery_pic(void);
    129 struct pic_ops *setup_discovery_gpp_pic(void *, int);
    130 
    131 #endif /* !_LOCORE */
    132 
    133 #endif /* _POWERPC_MARVELL_INTR_H_ */
    134