49c894ddce
Summary: Some methods are split between DMAP and non-DMAP, conditional on hw_direct_map variable. Rather than checking this variable every time, use it to install different functions via IFUNCs. Reviewed By: luporl Differential Revision: https://reviews.freebsd.org/D30071
146 lines
4.4 KiB
C
146 lines
4.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2010 Nathan Whitehorn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _POWERPC_AIM_MMU_OEA64_H
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#define _POWERPC_AIM_MMU_OEA64_H
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#include "opt_pmap.h"
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#include <vm/vm_extern.h>
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#include <machine/mmuvar.h>
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struct dump_context {
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u_long ptex;
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u_long ptex_end;
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size_t blksz;
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};
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extern const struct mmu_kobj oea64_mmu;
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/*
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* Helper routines
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*/
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/* Allocate physical memory for use in moea64_bootstrap. */
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vm_offset_t moea64_bootstrap_alloc(vm_size_t size, vm_size_t align);
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/* Set an LPTE structure to match the contents of a PVO */
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void moea64_pte_from_pvo(const struct pvo_entry *pvo, struct lpte *lpte);
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/*
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* Flags
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*/
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#define MOEA64_PTE_PROT_UPDATE 1
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#define MOEA64_PTE_INVALIDATE 2
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/*
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* Bootstrap subroutines
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*
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* An MMU_BOOTSTRAP() implementation looks like this:
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* moea64_early_bootstrap();
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* Allocate Page Table
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* moea64_mid_bootstrap();
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* Add mappings for MMU resources
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* moea64_late_bootstrap();
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*/
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void moea64_early_bootstrap(vm_offset_t kernelstart,
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vm_offset_t kernelend);
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void moea64_mid_bootstrap(vm_offset_t kernelstart,
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vm_offset_t kernelend);
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void moea64_late_bootstrap(vm_offset_t kernelstart,
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vm_offset_t kernelend);
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/* "base" install method for initializing moea64 pmap ifuncs */
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void moea64_install(void);
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int64_t moea64_pte_replace(struct pvo_entry *, int);
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int64_t moea64_pte_insert(struct pvo_entry *);
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int64_t moea64_pte_unset(struct pvo_entry *);
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int64_t moea64_pte_clear(struct pvo_entry *, uint64_t);
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int64_t moea64_pte_synch(struct pvo_entry *);
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int64_t moea64_pte_insert_sp(struct pvo_entry *);
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int64_t moea64_pte_unset_sp(struct pvo_entry *);
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int64_t moea64_pte_replace_sp(struct pvo_entry *);
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typedef int64_t (*moea64_pte_replace_t)(struct pvo_entry *, int);
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typedef int64_t (*moea64_pte_insert_t)(struct pvo_entry *);
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typedef int64_t (*moea64_pte_unset_t)(struct pvo_entry *);
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typedef int64_t (*moea64_pte_clear_t)(struct pvo_entry *, uint64_t);
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typedef int64_t (*moea64_pte_synch_t)(struct pvo_entry *);
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typedef int64_t (*moea64_pte_insert_sp_t)(struct pvo_entry *);
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typedef int64_t (*moea64_pte_unset_sp_t)(struct pvo_entry *);
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typedef int64_t (*moea64_pte_replace_sp_t)(struct pvo_entry *);
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struct moea64_funcs {
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moea64_pte_replace_t pte_replace;
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moea64_pte_insert_t pte_insert;
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moea64_pte_unset_t pte_unset;
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moea64_pte_clear_t pte_clear;
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moea64_pte_synch_t pte_synch;
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moea64_pte_insert_sp_t pte_insert_sp;
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moea64_pte_unset_sp_t pte_unset_sp;
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moea64_pte_replace_sp_t pte_replace_sp;
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};
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extern struct moea64_funcs *moea64_ops;
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static inline uint64_t
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moea64_pte_vpn_from_pvo_vpn(const struct pvo_entry *pvo)
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{
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return ((pvo->pvo_vpn >> (ADDR_API_SHFT64 - ADDR_PIDX_SHFT)) &
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LPTE_AVPN_MASK);
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}
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/*
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* Statistics
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*/
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#ifdef MOEA64_STATS
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extern u_int moea64_pte_valid;
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extern u_int moea64_pte_overflow;
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#define STAT_MOEA64(x) x
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#else
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#define STAT_MOEA64(x) ((void)0)
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#endif
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/*
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* State variables
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*/
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extern int moea64_large_page_shift;
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extern uint64_t moea64_large_page_size;
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extern uint64_t moea64_large_page_mask;
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extern u_long moea64_pteg_count;
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extern u_long moea64_pteg_mask;
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extern int n_slbs;
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extern bool moea64_has_lp_4k_16m;
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#endif /* _POWERPC_AIM_MMU_OEA64_H */
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