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rmixl_intr.h revision 1.1.2.11 
      1 /*	$NetBSD: rmixl_intr.h,v 1.1.2.11 2011/12/31 08:20:43 matt Exp $	*/
      2 /*-
      3  * Copyright (c) 2010 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Cliff Neighbors.
      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 #ifndef _MIPS_RMI_RMIXL_INTR_H_
     32 #define _MIPS_RMI_RMIXL_INTR_H_
     33 
     34 #ifdef _KERNEL_OPT
     35 #include "opt_multiprocessor.h"
     36 #endif
     37 
     38 /*
     39  * A 'vector' is bit number in EIRR/EIMR
     40  * - IRT or non-IRT interrupts use vectors 8..63
     41  * - vector or dynamically assigned (except for IPI and FMN)
     42  */
     43 #define	NINTRVECS	64	/* bit width of the EIRR */
     44 #define	RMIXLP_NIRTS	160	/* #entries in Interrupt Redirection Table */
     45 #define	RMIXLR_NIRTS	32	/* #entries in Interrupt Redirection Table */
     46 #define	RMIXLS_NIRTS	32	/* #entries in Interrupt Redirection Table */
     47 
     48 /*
     49  * vectors (0 <= vec < 8)  are CAUSE[8..15] (including softintrs and count/compare)
     50  */
     51 #define RMIXL_INTRVEC_IPI	8
     52 #define RMIXL_INTRVEC_FMN	(RMIXL_INTRVEC_IPI + NIPIS)
     53 
     54 /*
     55  * iv_list and ref count manage sharing of each vector
     56  */
     57 typedef struct rmixl_intrhand {
     58 	LIST_ENTRY(rmixl_intrhand) ih_link;
     59         int (*ih_func)(void *);
     60         void *ih_arg;
     61         bool ih_mpsafe; 		/* true if does not need kernel lock */
     62         uint8_t ih_vec;			/* vector is bit number in EIRR/EIMR */
     63 } rmixl_intrhand_t;
     64 
     65 typedef struct rmixl_intrvec {
     66 	LIST_HEAD(, rmixl_intrhand) iv_hands;
     67 	TAILQ_ENTRY(rmixl_intrvec) iv_lruq_link;
     68 	rmixl_intrhand_t iv_intrhand;
     69         uint8_t iv_ipl; 		/* interrupt priority */
     70 } rmixl_intrvec_t;
     71 
     72 typedef TAILQ_HEAD(rmixl_intrvecq, rmixl_intrvec) rmixl_intrvecq_t;
     73 
     74 /*
     75  * stuff exported from rmixl_spl.S
     76  */
     77 extern const struct splsw rmixl_splsw;
     78 extern uint64_t ipl_eimr_map[];
     79 
     80 void *	rmixl_intr_establish(size_t /* irt */, int /* ipl */, int /* ist */,
     81 	    int (*)(void *), void *, bool);
     82 void	rmixl_intr_disestablish(void *);
     83 void *	rmixl_vec_establish(size_t /* vec */, rmixl_intrhand_t *, int /* ipl */,
     84 	    int (*)(void *), void *, bool);
     85 void	rmixl_vec_disestablish(void *);
     86 const char *
     87 	rmixl_intr_string(size_t);
     88 const char *
     89 	rmixl_irt_string(size_t);
     90 void	rmixl_intr_init_cpu(struct cpu_info *);
     91 void	rmixl_intr_init_clk(void);
     92 #ifdef MULTIPROCESSOR
     93 void	rmixl_intr_init_ipi(void);
     94 #endif
     95 
     96 void *	gpio_intr_establish(size_t /* pin */, int /* ipl */, int /* ist */,
     97 	    int (*)(void *), void *, bool);
     98 
     99 void	gpio_intr_disestablish(void *);
    100 #endif	/* _MIPS_RMI_RMIXL_INTR_H_ */
    101