/* $NetBSD: ofw_machdep.h,v 1.6 2022/11/24 00:07:49 macallan Exp $ */

/*-
* Copyright (c) 2021 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _POWERPC_OFW_MACHDEP_H_
#define _POWERPC_OFW_MACHDEP_H_

#ifdef _KERNEL
#include <machine/powerpc.h>

/*
* The general format of an OpenFirmware virtual translation record is:
*
*      cell(s)         virt
*      cell(s)         size
*      cell(s)         phys
*      cell            mode
*
* "mode" contains PTE WIMG bits.
*
* We define this structure to describe these translations that's independent
* of the number of cells each field consumes.
*/
struct OF_translation {
       vaddr_t         virt;
       vsize_t         size;
       paddr_t         phys;
       uint32_t        mode;
};

#define OFW_MAX_TRANSLATIONS    48

extern bool ofwbootcons_suppress; /* suppress OF console I/O */

extern int ofw_chosen;          /* cached handle for "/chosen" */
extern struct OF_translation ofw_translations[OFW_MAX_TRANSLATIONS];

void    ofw_bootstrap(void);
void    ofprint(const char *, ...);

#endif /* _KERNEL */

#endif /* _POWERPC_OFW_MACHDEP_H_ */