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Annotation of sys/arch/mvme88k/include/cpu.h, Revision 1.1.1.1

1.1       nbrk        1: /* $OpenBSD: cpu.h,v 1.37 2007/05/14 17:00:40 miod Exp $ */
                      2: /*
                      3:  * Copyright (c) 1996 Nivas Madhur
                      4:  * Copyright (c) 1992, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
                      6:  *
                      7:  * This software was developed by the Computer Systems Engineering group
                      8:  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
                      9:  * contributed to Berkeley.
                     10:  *
                     11:  * All advertising materials mentioning features or use of this software
                     12:  * must display the following acknowledgement:
                     13:  *     This product includes software developed by the University of
                     14:  *     California, Lawrence Berkeley Laboratory.
                     15:  *
                     16:  * Redistribution and use in source and binary forms, with or without
                     17:  * modification, are permitted provided that the following conditions
                     18:  * are met:
                     19:  * 1. Redistributions of source code must retain the above copyright
                     20:  *    notice, this list of conditions and the following disclaimer.
                     21:  * 2. Redistributions in binary form must reproduce the above copyright
                     22:  *    notice, this list of conditions and the following disclaimer in the
                     23:  *    documentation and/or other materials provided with the distribution.
                     24:  * 3. Neither the name of the University nor the names of its contributors
                     25:  *    may be used to endorse or promote products derived from this software
                     26:  *    without specific prior written permission.
                     27:  *
                     28:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     29:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     30:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     31:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     32:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     33:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     34:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     35:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     36:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     37:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     38:  * SUCH DAMAGE.
                     39:  */
                     40: #ifndef        _MVME88K_CPU_H_
                     41: #define        _MVME88K_CPU_H_
                     42:
                     43: #include <sys/evcount.h>
                     44: #include <m88k/cpu.h>
                     45:
                     46: #ifdef _KERNEL
                     47:
                     48: /* board dependent pointers */
                     49: extern void    (*md_interrupt_func_ptr)(u_int, struct trapframe *);
                     50: #define        md_interrupt_func       (*md_interrupt_func_ptr)
                     51: extern u_int   (*md_getipl)(void);
                     52: extern u_int   (*md_setipl)(u_int);
                     53: extern u_int   (*md_raiseipl)(u_int);
                     54: extern void    (*md_init_clocks)(void);
                     55: extern void    (*md_send_ipi)(int, cpuid_t);
                     56:
                     57: struct intrhand {
                     58:        SLIST_ENTRY(intrhand) ih_link;
                     59:        int     (*ih_fn)(void *);
                     60:        void    *ih_arg;
                     61:        int     ih_ipl;
                     62:        int     ih_wantframe;
                     63:        struct evcount ih_count;
                     64: };
                     65:
                     66: int    intr_establish(int, struct intrhand *, const char *);
                     67: int    intr_findvec(int, int, int);
                     68:
                     69: /*
                     70:  * There are 256 possible vectors on a mvme88k platform (including
                     71:  * onboard and VME vectors. Use intr_establish() to register a
                     72:  * handler for the given vector. vector number is used to index
                     73:  * into the intr_handlers[] table.
                     74:  */
                     75: #define        NVMEINTR        256
                     76: typedef SLIST_HEAD(, intrhand) intrhand_t;
                     77: extern intrhand_t intr_handlers[NVMEINTR];
                     78:
                     79: #ifdef MVME188
                     80: /*
                     81:  * Currently registered VME interrupt vectors for a given IPL, if they
                     82:  * are unique. Used to help the MVME188 interrupt handler when it's getting
                     83:  * behind.
                     84:  */
                     85: extern u_int vmevec_hints[8];
                     86: #endif
                     87:
                     88: void   doboot(void);
                     89: void   nmihand(void *);
                     90:
                     91: #endif /* _KERNEL */
                     92:
                     93: #endif