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Annotation of sys/arch/sparc/stand/common/promdev.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: promdev.h,v 1.3 2003/08/14 17:13:57 deraadt Exp $     */
                      2: /*     $NetBSD: promdev.h,v 1.3 1995/09/18 21:31:50 pk Exp $ */
                      3:
                      4: /*
                      5:  * Copyright (c) 1993 Paul Kranenburg
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *      This product includes software developed by Paul Kranenburg.
                     19:  * 4. The name of the author may not be used to endorse or promote products
                     20:  *    derived from this software without specific prior written permission
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     23:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     24:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     25:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     26:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     27:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     28:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     29:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     30:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     31:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     32:  */
                     33:
                     34: #include <machine/bsd_openprom.h>
                     35:
                     36: struct promdata {
                     37:        int     fd;                     /* Openboot descriptor */
                     38:        struct  saioreq *si;            /* Oldmon IO request */
                     39:        int     devtype;                /* Kind of device we're booting from */
                     40: #define DT_BLOCK       1
                     41: #define DT_NET         2
                     42: #define DT_BYTE                3
                     43:        /* Hooks for netif.c */
                     44:        int     (*xmit)(struct promdata *, void *, size_t);
                     45:        int     (*recv)(struct promdata *, void *, size_t);
                     46: };
                     47:
                     48: #define LOADADDR       ((caddr_t)0x4000)
                     49: #define DDB_MAGIC0     ( ('D'<<24) | ('D'<<16) | ('B'<<8) | ('0') )
                     50: #define DDB_MAGIC1     ( ('D'<<24) | ('D'<<16) | ('B'<<8) | ('1') )
                     51: #define DDB_MAGIC      DDB_MAGIC0
                     52:
                     53: extern struct promvec  *promvec;
                     54: extern char    *prom_bootdevice;
                     55: extern char    *prom_bootfile;
                     56: extern int     prom_boothow;
                     57: extern int     hz;
                     58: extern int     cputyp, nbpg, pgofset, pgshift;
                     59: extern int     debug;
                     60:
                     61: extern void    prom_init(void);
                     62:
                     63: /* Note: dvma_*() routines are for "oldmon" machines only */
                     64: extern void    dvma_init(void);
                     65: extern char    *dvma_mapin(char *, size_t);
                     66: extern char    *dvma_mapout(char *, size_t);
                     67: extern char    *dvma_alloc(int);
                     68: extern void    dvma_free(char *, int);
                     69:
                     70: /*
                     71:  * duplicates from pmap.c for mapping device on "oldmon" machines.
                     72:  */
                     73: #include <sparc/sparc/asm.h>
                     74:
                     75: #define getcontext()           lduba(AC_CONTEXT, ASI_CONTROL)
                     76: #define setcontext(c)          stba(AC_CONTEXT, ASI_CONTROL, c)
                     77: #define getsegmap(va)          (cputyp == CPU_SUN4C \
                     78:                                        ? lduba(va, ASI_SEGMAP) \
                     79:                                        : lduha(va, ASI_SEGMAP))
                     80: #define setsegmap(va, pmeg)    (cputyp == CPU_SUN4C \
                     81:                                        ? stba(va, ASI_SEGMAP, pmeg) \
                     82:                                        : stha(va, ASI_SEGMAP, pmeg))
                     83: #define getregmap(va)          ((unsigned)lduha(va+2, ASI_REGMAP) >> 8)
                     84: #define setregmap(va, smeg)    stha(va+2, ASI_REGMAP, (smeg << 8))
                     85:
                     86: #define getpte(va)             lda(va, ASI_PTE)
                     87: #define setpte(va, pte)                sta(va, ASI_PTE, pte)