1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (C) 2010 Nathan Whitehorn 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30#ifndef _POWERPC_AIM_MMU_OEA64_H 31#define _POWERPC_AIM_MMU_OEA64_H 32 33#include "opt_pmap.h" 34 35#include <vm/vm_extern.h> 36#include <machine/mmuvar.h> 37 38struct dump_context { 39 u_long ptex; 40 u_long ptex_end; 41 size_t blksz; 42}; 43 44extern const struct mmu_kobj oea64_mmu; 45 46/* 47 * Helper routines 48 */ 49 50/* Allocate physical memory for use in moea64_bootstrap. */ 51vm_offset_t moea64_bootstrap_alloc(vm_size_t size, vm_size_t align); 52/* Set an LPTE structure to match the contents of a PVO */ 53void moea64_pte_from_pvo(const struct pvo_entry *pvo, struct lpte *lpte); 54 55/* 56 * Flags 57 */ 58 59#define MOEA64_PTE_PROT_UPDATE 1 60#define MOEA64_PTE_INVALIDATE 2 61 62/* 63 * Bootstrap subroutines 64 * 65 * An MMU_BOOTSTRAP() implementation looks like this: 66 * moea64_early_bootstrap(); 67 * Allocate Page Table 68 * moea64_mid_bootstrap(); 69 * Add mappings for MMU resources 70 * moea64_late_bootstrap(); 71 */ 72 73void moea64_early_bootstrap(vm_offset_t kernelstart, 74 vm_offset_t kernelend); 75void moea64_mid_bootstrap(vm_offset_t kernelstart, 76 vm_offset_t kernelend); 77void moea64_late_bootstrap(vm_offset_t kernelstart, 78 vm_offset_t kernelend); 79 80int64_t moea64_pte_replace(struct pvo_entry *, int); 81int64_t moea64_pte_insert(struct pvo_entry *); 82int64_t moea64_pte_unset(struct pvo_entry *); 83int64_t moea64_pte_clear(struct pvo_entry *, uint64_t); 84int64_t moea64_pte_synch(struct pvo_entry *); 85int64_t moea64_pte_insert_sp(struct pvo_entry *); 86int64_t moea64_pte_unset_sp(struct pvo_entry *); 87int64_t moea64_pte_replace_sp(struct pvo_entry *); 88 89typedef int64_t (*moea64_pte_replace_t)(struct pvo_entry *, int); 90typedef int64_t (*moea64_pte_insert_t)(struct pvo_entry *); 91typedef int64_t (*moea64_pte_unset_t)(struct pvo_entry *); 92typedef int64_t (*moea64_pte_clear_t)(struct pvo_entry *, uint64_t); 93typedef int64_t (*moea64_pte_synch_t)(struct pvo_entry *); 94typedef int64_t (*moea64_pte_insert_sp_t)(struct pvo_entry *); 95typedef int64_t (*moea64_pte_unset_sp_t)(struct pvo_entry *); 96typedef int64_t (*moea64_pte_replace_sp_t)(struct pvo_entry *); 97 98struct moea64_funcs { 99 moea64_pte_replace_t pte_replace; 100 moea64_pte_insert_t pte_insert; 101 moea64_pte_unset_t pte_unset; 102 moea64_pte_clear_t pte_clear; 103 moea64_pte_synch_t pte_synch; 104 moea64_pte_insert_sp_t pte_insert_sp; 105 moea64_pte_unset_sp_t pte_unset_sp; 106 moea64_pte_replace_sp_t pte_replace_sp; 107}; 108 109extern struct moea64_funcs *moea64_ops; 110 111static inline uint64_t 112moea64_pte_vpn_from_pvo_vpn(const struct pvo_entry *pvo) 113{ 114 return ((pvo->pvo_vpn >> (ADDR_API_SHFT64 - ADDR_PIDX_SHFT)) & 115 LPTE_AVPN_MASK); 116} 117 118/* 119 * Statistics 120 */ 121 122#ifdef MOEA64_STATS 123extern u_int moea64_pte_valid; 124extern u_int moea64_pte_overflow; 125#define STAT_MOEA64(x) x 126#else 127#define STAT_MOEA64(x) ((void)0) 128#endif 129 130/* 131 * State variables 132 */ 133 134extern int moea64_large_page_shift; 135extern uint64_t moea64_large_page_size; 136extern uint64_t moea64_large_page_mask; 137extern u_long moea64_pteg_count; 138extern u_long moea64_pteg_mask; 139extern int n_slbs; 140extern bool moea64_has_lp_4k_16m; 141 142#endif /* _POWERPC_AIM_MMU_OEA64_H */ 143