135 lines
4.5 KiB
C
135 lines
4.5 KiB
C
/* $NetBSD: pmap.h,v 1.19 2005/01/29 11:20:09 scw Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SH5_PMAP_H
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#define _SH5_PMAP_H
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#include <sh5/pte.h>
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#if defined(_KERNEL)
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/*
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* PMAP flags exported to UVM
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*/
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#define PMAP_CACHE_VIVT /* The insn cache is VIVT */
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/*#define PMAP_PREFER*/ /* XXX: Not yet */
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/*
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* Assume 512MB of KSEG1 KVA, but allow this to be over-ridden
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* if necessary.
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*/
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#ifndef KERNEL_IPT_SIZE
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#define KERNEL_IPT_SIZE (SH5_KSEG1_SIZE / PAGE_SIZE)
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#endif
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struct pmap {
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int pm_refs; /* pmap reference count */
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u_int pm_asid; /* ASID for this pmap */
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u_int pm_asidgen; /* ASID Generation number */
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vsid_t pm_vsid; /* This pmap's vsid */
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struct pmap_statistics pm_stats;
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};
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#define PMAP_ASID_UNASSIGNED ((u_int)(-1))
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#define PMAP_ASID_KERNEL 0
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#define PMAP_ASID_CACHEOPS 1
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#define PMAP_ASID_USER_START 2
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typedef struct pmap *pmap_t;
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#define PMAP_NC 0x1000
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#define PMAP_UNMANAGED 0x2000
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extern struct pmap kernel_pmap_store;
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#define pmap_kernel() (&kernel_pmap_store)
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extern int pmap_write_trap(struct proc *, int, vaddr_t);
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extern boolean_t pmap_clear_bit(struct vm_page *, ptel_t);
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extern boolean_t pmap_query_bit(struct vm_page *, ptel_t);
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extern vaddr_t pmap_map_poolpage(paddr_t);
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extern paddr_t pmap_unmap_poolpage(vaddr_t);
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#define PMAP_MAP_POOLPAGE(p) pmap_map_poolpage((p))
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#define PMAP_UNMAP_POOLPAGE(v) pmap_unmap_poolpage((v))
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#define PMAP_STEAL_MEMORY
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#define pmap_clear_modify(pg) (pmap_clear_bit((pg), SH5_PTEL_M))
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#define pmap_clear_reference(pg) (pmap_clear_bit((pg), SH5_PTEL_R))
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#define pmap_is_modified(pg) (pmap_query_bit((pg), SH5_PTEL_M))
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#define pmap_is_referenced(pg) (pmap_query_bit((pg), SH5_PTEL_R))
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#define pmap_resident_count(pm) ((pm)->pm_stats.resident_count)
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#define pmap_wired_count(pm) ((pm)->pm_stats.wired_count)
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#define pmap_phys_address(x) (x)
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static __inline void
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pmap_remove_all(struct pmap *pmap)
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{
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/* Nothing. */
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}
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/* Private pmap data and functions */
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struct mem_region;
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extern void pmap_bootstrap(vaddr_t, paddr_t, struct mem_region *);
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extern int pmap_initialized;
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extern u_int pmap_ipt_hash(vsid_t vsid, vaddr_t va); /* See exception.S */
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extern vaddr_t pmap_map_device(paddr_t, u_int);
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extern int pmap_page_is_cacheable(pmap_t, vaddr_t);
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extern void pmap_register_copyzero_helpers(void (*)(void *, paddr_t),
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void (*)(void *, paddr_t, paddr_t), void *);
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struct sh5_tlb_ops {
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void (*tlbinv_cookie)(pteh_t, tlbcookie_t);
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void (*tlbinv_all)(void);
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void (*tlbload)(void); /* Not C-callable */
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u_int dtlb_slots;
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u_int itlb_slots;
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};
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#define cpu_tlbinv_cookie sh5_tlb_ops.tlbinv_cookie
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#define cpu_tlbinv_all sh5_tlb_ops.tlbinv_all
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#define cpu_tlbload sh5_tlb_ops.tlbload
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#define cpu_dtlb_slots sh5_tlb_ops.dtlb_slots
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#define cpu_itlb_slots sh5_tlb_ops.itlb_slots
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extern struct sh5_tlb_ops sh5_tlb_ops;
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#endif
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#endif /* _SH5_PMAP_H */
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