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 <machine/mmuvar.h> 36 37 struct dump_context { 38 u_long ptex; 39 u_long ptex_end; 40 size_t blksz; 41 }; 42 43 extern mmu_def_t oea64_mmu; 44 45 /* 46 * Helper routines 47 */ 48 49 /* Allocate physical memory for use in moea64_bootstrap. */ 50 vm_offset_t moea64_bootstrap_alloc(vm_size_t size, vm_size_t align); 51 /* Set an LPTE structure to match the contents of a PVO */ 52 void moea64_pte_from_pvo(const struct pvo_entry *pvo, struct lpte *lpte); 53 54 /* 55 * Flags 56 */ 57 58 #define MOEA64_PTE_PROT_UPDATE 1 59 #define MOEA64_PTE_INVALIDATE 2 60 61 /* 62 * Bootstrap subroutines 63 * 64 * An MMU_BOOTSTRAP() implementation looks like this: 65 * moea64_early_bootstrap(); 66 * Allocate Page Table 67 * moea64_mid_bootstrap(); 68 * Add mappings for MMU resources 69 * moea64_late_bootstrap(); 70 */ 71 72 void moea64_early_bootstrap(mmu_t mmup, vm_offset_t kernelstart, 73 vm_offset_t kernelend); 74 void moea64_mid_bootstrap(mmu_t mmup, vm_offset_t kernelstart, 75 vm_offset_t kernelend); 76 void moea64_late_bootstrap(mmu_t mmup, vm_offset_t kernelstart, 77 vm_offset_t kernelend); 78 79 static inline uint64_t 80 moea64_pte_vpn_from_pvo_vpn(const struct pvo_entry *pvo) 81 { 82 return ((pvo->pvo_vpn >> (ADDR_API_SHFT64 - ADDR_PIDX_SHFT)) & 83 LPTE_AVPN_MASK); 84 } 85 86 /* 87 * Statistics 88 */ 89 90 #ifdef MOEA64_STATS 91 extern u_int moea64_pte_valid; 92 extern u_int moea64_pte_overflow; 93 #define STAT_MOEA64(x) x 94 #else 95 #define STAT_MOEA64(x) ((void)0) 96 #endif 97 98 /* 99 * State variables 100 */ 101 102 extern int moea64_large_page_shift; 103 extern uint64_t moea64_large_page_size; 104 extern uint64_t moea64_large_page_mask; 105 extern u_long moea64_pteg_count; 106 extern u_long moea64_pteg_mask; 107 extern int n_slbs; 108 109 #endif /* _POWERPC_AIM_MMU_OEA64_H */ 110 111