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Switch mvme68k to pmap_motorola again.
68060 operation tested by deraadt@
This commit is contained in:
parent
e34469c788
commit
ebd1616ad5
@ -1,4 +1,4 @@
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# $OpenBSD: files.mvme68k,v 1.21 2001/12/20 19:02:29 miod Exp $
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# $OpenBSD: files.mvme68k,v 1.22 2002/02/22 22:45:30 miod Exp $
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# config file for mvme68k
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@ -115,7 +115,7 @@ file arch/mvme68k/mvme68k/disksubr.c
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file arch/mvme68k/mvme68k/dkbad.c
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file arch/mvme68k/mvme68k/machdep.c
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file arch/mvme68k/mvme68k/mem.c
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file arch/mvme68k/mvme68k/pmap.c
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file arch/m68k/m68k/pmap_motorola.c
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file arch/mvme68k/mvme68k/pmap_bootstrap.c
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file arch/mvme68k/mvme68k/sys_machdep.c
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file arch/mvme68k/mvme68k/trap.c
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@ -1,4 +1,4 @@
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/* $OpenBSD: param.h,v 1.16 2001/12/20 19:02:29 miod Exp $ */
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/* $OpenBSD: param.h,v 1.17 2002/02/22 22:45:34 miod Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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@ -57,12 +57,6 @@
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#define PAGE_SIZE (1 << PAGE_SHIFT)
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#define PAGE_MASK (PAGE_SIZE - 1)
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#define NPTEPG (NBPG/(sizeof (pt_entry_t)))
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#define SEGSHIFT 22 /* LOG2(NBSEG) */
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#define NBSEG (1 << SEGSHIFT) /* bytes/segment */
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#define SEGOFSET (NBSEG-1) /* byte offset into segment */
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#define KERNBASE 0x00000000 /* start of kernel virtual */
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#define KERNTEXTOFF 0x00010000 /* start of kernel text */
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@ -92,17 +86,4 @@
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#define DELAY(n) delay(n)
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#endif
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#ifdef COMPAT_HPUX
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/*
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* Constants/macros for HPUX multiple mapping of user address space.
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* Pages in the first 256Mb are mapped in at every 256Mb segment.
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*/
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#define HPMMMASK 0xF0000000
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#define ISHPMMADDR(v) \
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((curproc->p_md.md_flags & MDP_HPUXMMAP) && \
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((unsigned)(v) & HPMMMASK) && \
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((unsigned)(v) & HPMMMASK) != HPMMMASK)
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#define HPMMBASEADDR(v) \
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((unsigned)(v) & ~HPMMMASK)
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#endif
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#endif /* _MACHINE_PARAM_H_ */
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@ -1,155 +1,13 @@
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/* $OpenBSD: pmap.h,v 1.10 2001/12/20 19:02:29 miod Exp $ */
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/* $OpenBSD: pmap.h,v 1.11 2002/02/22 22:45:34 miod Exp $ */
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/*
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* Copyright (c) 1987 Carnegie-Mellon University
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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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 by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)pmap.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _MACHINE_PMAP_H_
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#define _MACHINE_PMAP_H_
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#ifndef _MVME68K_PMAP_H_
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#define _MVME68K_PMAP_H_
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#include <machine/pte.h>
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#if defined(M68040)
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#define M68K_SEG_SIZE (mmutype == MMU_68040 ? 0x40000 : NBSEG)
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#else
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#define M68K_SEG_SIZE NBSEG
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#endif
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/*
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* Pmap stuff
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*/
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struct pmap {
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pt_entry_t *pm_ptab; /* KVA of page table */
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st_entry_t *pm_stab; /* KVA of segment table */
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int pm_stfree; /* 040: free lev2 blocks */
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st_entry_t *pm_stpa; /* 040: ST phys addr */
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short pm_sref; /* segment table ref count */
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short pm_count; /* pmap reference count */
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struct simplelock pm_lock; /* lock on pmap */
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struct pmap_statistics pm_stats; /* pmap statistics */
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long pm_ptpages; /* more stats: PT pages */
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};
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typedef struct pmap *pmap_t;
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/*
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* On the 040 we keep track of which level 2 blocks are already in use
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* with the pm_stfree mask. Bits are arranged from LSB (block 0) to MSB
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* (block 31). For convenience, the level 1 table is considered to be
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* block 0.
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*
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* MAX[KU]L2SIZE control how many pages of level 2 descriptors are allowed.
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* for the kernel and users. 8 implies only the initial "segment table"
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* page is used. WARNING: don't change MAXUL2SIZE unless you can allocate
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* physically contiguous pages for the ST in pmap.c!
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*/
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#define MAXKL2SIZE 32
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#define MAXUL2SIZE 8
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#define l2tobm(n) (1 << (n))
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#define bmtol2(n) (ffs(n) - 1)
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/*
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* Macros for speed
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*/
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#define PMAP_ACTIVATE(pmap, loadhw) \
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{ \
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if ((loadhw)) \
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loadustp(m68k_btop((vm_offset_t)(pmap)->pm_stpa)); \
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}
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/*
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* For each vm_page_t, there is a list of all currently valid virtual
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* mappings of that page. An entry is a pv_entry, the list is pv_table.
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*/
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struct pv_entry {
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struct pv_entry *pv_next; /* next pv_entry */
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struct pmap *pv_pmap; /* pmap where mapping lies */
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vm_offset_t pv_va; /* virtual address for mapping */
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st_entry_t *pv_ptste; /* non-zero if VA maps a PT page */
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struct pmap *pv_ptpmap; /* if pv_ptste, pmap for PT page */
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int pv_flags; /* flags */
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};
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#define PV_CI 0x01 /* header: all entries are cache inhibited */
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#define PV_PTPAGE 0x02 /* header: entry maps a page table page */
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struct pv_page;
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struct pv_page_info {
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TAILQ_ENTRY(pv_page) pgi_list;
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struct pv_entry *pgi_freelist;
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int pgi_nfree;
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};
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/*
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* This is basically:
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* ((NBPG - sizeof(struct pv_page_info)) / sizeof(struct pv_entry))
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*/
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#define NPVPPG 170
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struct pv_page {
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struct pv_page_info pvp_pgi;
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struct pv_entry pvp_pv[NPVPPG];
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};
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#include <m68k/pmap_motorola.h>
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#ifdef _KERNEL
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void pmap_init_md __P((void));
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#define PMAP_INIT_MD() pmap_init_md()
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#endif
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extern struct pmap kernel_pmap_store;
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#define pmap_kernel() (&kernel_pmap_store)
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#define active_pmap(pm) \
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((pm) == pmap_kernel() || (pm) == curproc->p_vmspace->vm_map.pmap)
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#define active_user_pmap(pm) \
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(curproc && \
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(pm) != pmap_kernel() && (pm) == curproc->p_vmspace->vm_map.pmap)
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extern struct pv_entry *pv_table; /* array of entries, one per page */
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#define pmap_page_index(pa) atop(pa - vm_first_phys)
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#define pmap_resident_count(pmap) ((pmap)->pm_stats.resident_count)
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#define pmap_wired_count(pmap) ((pmap)->pm_stats.wired_count)
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#define pmap_update(pmap) /* nothing */
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extern pt_entry_t *Sysmap;
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extern char *vmmap; /* map for mem, dumps, etc. */
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#endif /* _KERNEL */
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#endif /* !_MVME68K_PMAP_H_ */
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#endif /* _MACHINE_PMAP_H_ */
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@ -1,152 +1,14 @@
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/* $OpenBSD: pte.h,v 1.6 2001/12/20 19:02:29 miod Exp $ */
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/* $OpenBSD: pte.h,v 1.7 2002/02/22 22:45:34 miod Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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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 by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: pte.h 1.13 92/01/20$
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*
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* @(#)pte.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _MACHINE_PTE_H_
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#define _MACHINE_PTE_H_
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#ifndef _MVME68K_PTE_H_
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#define _MVME68K_PTE_H_
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#include <m68k/pte_motorola.h>
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/*
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* m68k hardware segment/page table entries
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*/
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#define MACHINE_STSIZE M68K_STSIZE
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#define MACHINE_MAX_PTSIZE M68K_MAX_PTSIZE
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#define MACHINE_MAX_KPTSIZE M68K_MAX_KPTSIZE
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#define MACHINE_PTBASE M68K_PTBASE
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#define MACHINE_PTMAXSIZE M68K_PTMAXSIZE
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#if 0
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struct ste {
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unsigned int sg_pfnum:20; /* page table frame number */
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unsigned int :8; /* reserved at 0 */
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unsigned int :1; /* reserved at 1 */
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unsigned int sg_prot:1; /* write protect bit */
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unsigned int sg_v:2; /* valid bits */
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};
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struct ste40 {
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unsigned int sg_ptaddr:24; /* page table page addr */
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unsigned int :4; /* reserved at 0 */
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unsigned int sg_u; /* hardware modified (dirty) bit */
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unsigned int sg_prot:1; /* write protect bit */
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unsigned int sg_v:2; /* valid bits */
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};
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struct pte {
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unsigned int pg_pfnum:20; /* page frame number or 0 */
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unsigned int :3;
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unsigned int pg_w:1; /* is wired */
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unsigned int :1; /* reserved at zero */
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unsigned int pg_ci:1; /* cache inhibit bit */
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unsigned int :1; /* reserved at zero */
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unsigned int pg_m:1; /* hardware modified (dirty) bit */
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unsigned int pg_u:1; /* hardware used (reference) bit */
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unsigned int pg_prot:1; /* write protect bit */
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unsigned int pg_v:2; /* valid bit */
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};
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#endif
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typedef int st_entry_t; /* segment table entry */
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typedef int pt_entry_t; /* Mach page table entry */
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#define PT_ENTRY_NULL ((pt_entry_t *) 0)
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#define ST_ENTRY_NULL ((st_entry_t *) 0)
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#define SG_V 0x00000002 /* segment is valid */
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#define SG_NV 0x00000000
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#define SG_PROT 0x00000004 /* access protection mask */
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#define SG_RO 0x00000004
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#define SG_RW 0x00000000
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#define SG_U 0x00000008 /* modified bit (68040) */
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#define SG_FRAME 0xfffff000
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#define SG_IMASK 0xffc00000
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#define SG_ISHIFT 22
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#define SG_PMASK 0x003ff000
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#define SG_PSHIFT 12
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/* 68040 additions */
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#define SG4_MASK1 0xfe000000
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#define SG4_SHIFT1 25
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#define SG4_MASK2 0x01fc0000
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#define SG4_SHIFT2 18
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#define SG4_MASK3 0x0003f000
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#define SG4_SHIFT3 12
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#define SG4_ADDR1 0xfffffe00
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#define SG4_ADDR2 0xffffff00
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#define SG4_LEV1SIZE 128
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#define SG4_LEV2SIZE 128
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#define SG4_LEV3SIZE 64
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#define PG_V 0x00000001
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#define PG_NV 0x00000000
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#define PG_PROT 0x00000004
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#define PG_U 0x00000008
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#define PG_M 0x00000010
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#define PG_W 0x00000100
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#define PG_RO 0x00000004
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#define PG_RW 0x00000000
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#define PG_FRAME 0xfffff000
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#define PG_CI 0x00000040
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#define PG_SHIFT 12
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#define PG_PFNUM(x) (((x) & PG_FRAME) >> PG_SHIFT)
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/* 68040 additions */
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#define PG_CMASK 0x00000060 /* cache mode mask */
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#define PG_CWT 0x00000000 /* writethrough caching */
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#define PG_CCB 0x00000020 /* copyback caching */
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#define PG_CIS 0x00000040 /* cache inhibited serialized */
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#define PG_CIN 0x00000060 /* cache inhibited nonserialized */
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#define PG_SO 0x00000080 /* supervisor only */
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#define M68K_STSIZE (MAXUL2SIZE*SG4_LEV2SIZE*sizeof(st_entry_t))
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/* user process segment table size */
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#define M68K_MAX_PTSIZE 0x400000 /* max size of UPT */
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#define M68K_MAX_KPTSIZE 0x100000 /* max memory to allocate to KPT */
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#define M68K_PTBASE 0x10000000 /* UPT map base address */
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#define M68K_PTMAXSIZE 0x70000000 /* UPT map maximum size */
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/*
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* Kernel virtual address to page table entry and to physical address.
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*/
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#define kvtopte(va) \
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(&Sysmap[((unsigned)(va) - VM_MIN_KERNEL_ADDRESS) >> PGSHIFT])
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#define ptetokv(pt) \
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((((pt_entry_t *)(pt) - Sysmap) << PGSHIFT) + VM_MIN_KERNEL_ADDRESS)
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#define kvtophys(va) \
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((kvtopte(va)->pg_pfnum << PGSHIFT) | ((int)(va) & PGOFSET))
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#endif /* !_MVME68K_PTE_H_ */
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#endif /* _MACHINE_PTE_H_ */
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|
File diff suppressed because it is too large
Load Diff
@ -1,4 +1,4 @@
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/* $OpenBSD: pmap_bootstrap.c,v 1.13 2002/02/11 19:08:30 miod Exp $ */
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/* $OpenBSD: pmap_bootstrap.c,v 1.14 2002/02/22 22:45:34 miod Exp $ */
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/*
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* Copyright (c) 1995 Theo de Raadt
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@ -88,7 +88,6 @@ extern st_entry_t *Sysseg;
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extern pt_entry_t *Sysptmap, *Sysmap;
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extern int maxmem, physmem;
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extern int protection_codes[];
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extern paddr_t avail_start, avail_end;
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extern vaddr_t virtual_avail, virtual_end;
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extern vsize_t mem_size;
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@ -499,25 +498,6 @@ pmap_bootstrap(nextpa, firstpa)
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}
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#endif
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/*
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* Initialize protection array.
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* XXX don't use a switch statement, it might produce an
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* absolute "jmp" table.
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*/
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{
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register int *kp;
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kp = &RELOC(protection_codes, int);
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kp[VM_PROT_NONE|VM_PROT_NONE|VM_PROT_NONE] = 0;
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kp[VM_PROT_READ|VM_PROT_NONE|VM_PROT_NONE] = PG_RO;
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kp[VM_PROT_READ|VM_PROT_NONE|VM_PROT_EXECUTE] = PG_RO;
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kp[VM_PROT_NONE|VM_PROT_NONE|VM_PROT_EXECUTE] = PG_RO;
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kp[VM_PROT_NONE|VM_PROT_WRITE|VM_PROT_NONE] = PG_RW;
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kp[VM_PROT_NONE|VM_PROT_WRITE|VM_PROT_EXECUTE] = PG_RW;
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kp[VM_PROT_READ|VM_PROT_WRITE|VM_PROT_NONE] = PG_RW;
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kp[VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE] = PG_RW;
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}
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/*
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||||
* Kernel page/segment table allocated in locore,
|
||||
* just initialize pointers.
|
||||
@ -570,3 +550,20 @@ pmap_bootstrap(nextpa, firstpa)
|
||||
RELOC(virtual_avail, vaddr_t) = va;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
pmap_init_md()
|
||||
{
|
||||
vaddr_t addr;
|
||||
|
||||
/*
|
||||
* mark as unavailable the regions which we have mapped in
|
||||
* pmap_bootstrap().
|
||||
*/
|
||||
addr = (vaddr_t) intiobase;
|
||||
if (uvm_map(kernel_map, &addr, m68k_ptob(iiomapsize+EIOMAPSIZE),
|
||||
NULL, UVM_UNKNOWN_OFFSET, 0,
|
||||
UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE,
|
||||
UVM_INH_NONE, UVM_ADV_RANDOM, UVM_FLAG_FIXED)))
|
||||
panic("pmap_init: bogons in the VM system!\n");
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user