1/*-
2 * Copyright (C) 2010 Nathan Whitehorn
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * $FreeBSD: releng/11.0/sys/powerpc/aim/mmu_oea64.h 279252 2015-02-24 21:37:20Z nwhitehorn $
26 */
27
28#ifndef _POWERPC_AIM_MMU_OEA64_H
29#define _POWERPC_AIM_MMU_OEA64_H
30
31#include <machine/mmuvar.h>
32
33extern mmu_def_t oea64_mmu;
34
35/*
36 * Helper routines
37 */
38
39/* Allocate physical memory for use in moea64_bootstrap. */
40vm_offset_t	moea64_bootstrap_alloc(vm_size_t, u_int);
41/* Set an LPTE structure to match the contents of a PVO */
42void	moea64_pte_from_pvo(const struct pvo_entry *pvo, struct lpte *lpte);
43
44/*
45 * Flags
46 */
47
48#define MOEA64_PTE_PROT_UPDATE	1
49#define MOEA64_PTE_INVALIDATE	2
50
51/*
52 * Bootstrap subroutines
53 *
54 * An MMU_BOOTSTRAP() implementation looks like this:
55 *   moea64_early_bootstrap();
56 *   Allocate Page Table
57 *   moea64_mid_bootstrap();
58 *   Add mappings for MMU resources
59 *   moea64_late_bootstrap();
60 */
61
62void		moea64_early_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
63		    vm_offset_t kernelend);
64void		moea64_mid_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
65		    vm_offset_t kernelend);
66void		moea64_late_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
67		    vm_offset_t kernelend);
68
69/*
70 * Statistics
71 */
72
73extern u_int	moea64_pte_valid;
74extern u_int	moea64_pte_overflow;
75
76/*
77 * State variables
78 */
79
80extern int		moea64_large_page_shift;
81extern uint64_t		moea64_large_page_size;
82extern u_int		moea64_pteg_count;
83extern u_int		moea64_pteg_mask;
84
85#endif /* _POWERPC_AIM_MMU_OEA64_H */
86
87