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pmap.h revision 1.58.4.7
      1  1.58.4.7  thorpej /*	$NetBSD: pmap.h,v 1.58.4.7 2003/01/15 18:40:13 thorpej Exp $ */
      2  1.58.4.2       pk 
      3  1.58.4.2       pk /*
      4  1.58.4.2       pk  * Copyright (c) 1996
      5  1.58.4.2       pk  * 	The President and Fellows of Harvard College. All rights reserved.
      6  1.58.4.2       pk  * Copyright (c) 1992, 1993
      7  1.58.4.2       pk  *	The Regents of the University of California.  All rights reserved.
      8  1.58.4.2       pk  *
      9  1.58.4.2       pk  * This software was developed by the Computer Systems Engineering group
     10  1.58.4.2       pk  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
     11  1.58.4.2       pk  * contributed to Berkeley.
     12  1.58.4.2       pk  *
     13  1.58.4.2       pk  * All advertising materials mentioning features or use of this software
     14  1.58.4.2       pk  * must display the following acknowledgement:
     15  1.58.4.2       pk  *	This product includes software developed by Aaron Brown and
     16  1.58.4.2       pk  *	Harvard University.
     17  1.58.4.2       pk  *	This product includes software developed by the University of
     18  1.58.4.2       pk  *	California, Lawrence Berkeley Laboratory.
     19  1.58.4.2       pk  *
     20  1.58.4.2       pk  * @InsertRedistribution@
     21  1.58.4.2       pk  * 3. All advertising materials mentioning features or use of this software
     22  1.58.4.2       pk  *    must display the following acknowledgement:
     23  1.58.4.2       pk  *	This product includes software developed by Aaron Brown and
     24  1.58.4.2       pk  *	Harvard University.
     25  1.58.4.2       pk  *	This product includes software developed by the University of
     26  1.58.4.2       pk  *	California, Berkeley and its contributors.
     27  1.58.4.2       pk  * 4. Neither the name of the University nor the names of its contributors
     28  1.58.4.2       pk  *    may be used to endorse or promote products derived from this software
     29  1.58.4.2       pk  *    without specific prior written permission.
     30  1.58.4.2       pk  *
     31  1.58.4.2       pk  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     32  1.58.4.2       pk  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     33  1.58.4.2       pk  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     34  1.58.4.2       pk  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     35  1.58.4.2       pk  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     36  1.58.4.2       pk  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     37  1.58.4.2       pk  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     38  1.58.4.2       pk  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     39  1.58.4.2       pk  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     40  1.58.4.2       pk  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     41  1.58.4.2       pk  * SUCH DAMAGE.
     42  1.58.4.2       pk  *
     43  1.58.4.2       pk  *	@(#)pmap.h	8.1 (Berkeley) 6/11/93
     44  1.58.4.2       pk  */
     45  1.58.4.2       pk 
     46  1.58.4.2       pk #ifndef	_SPARC_PMAP_H_
     47  1.58.4.2       pk #define _SPARC_PMAP_H_
     48  1.58.4.2       pk 
     49  1.58.4.3  nathanw #if defined(_KERNEL_OPT)
     50  1.58.4.3  nathanw #include "opt_sparc_arch.h"
     51  1.58.4.3  nathanw #endif
     52  1.58.4.3  nathanw 
     53  1.58.4.2       pk #include <machine/pte.h>
     54  1.58.4.2       pk 
     55  1.58.4.2       pk /*
     56  1.58.4.2       pk  * Pmap structure.
     57  1.58.4.2       pk  *
     58  1.58.4.2       pk  * The pmap structure really comes in two variants, one---a single
     59  1.58.4.2       pk  * instance---for kernel virtual memory and the other---up to nproc
     60  1.58.4.2       pk  * instances---for user virtual memory.  Unfortunately, we have to mash
     61  1.58.4.2       pk  * both into the same structure.  Fortunately, they are almost the same.
     62  1.58.4.2       pk  *
     63  1.58.4.2       pk  * The kernel begins at 0xf8000000 and runs to 0xffffffff (although
     64  1.58.4.2       pk  * some of this is not actually used).  Kernel space, including DVMA
     65  1.58.4.2       pk  * space (for now?), is mapped identically into all user contexts.
     66  1.58.4.2       pk  * There is no point in duplicating this mapping in each user process
     67  1.58.4.2       pk  * so they do not appear in the user structures.
     68  1.58.4.2       pk  *
     69  1.58.4.2       pk  * User space begins at 0x00000000 and runs through 0x1fffffff,
     70  1.58.4.2       pk  * then has a `hole', then resumes at 0xe0000000 and runs until it
     71  1.58.4.2       pk  * hits the kernel space at 0xf8000000.  This can be mapped
     72  1.58.4.2       pk  * contiguously by ignorning the top two bits and pretending the
     73  1.58.4.2       pk  * space goes from 0 to 37ffffff.  Typically the lower range is
     74  1.58.4.2       pk  * used for text+data and the upper for stack, but the code here
     75  1.58.4.2       pk  * makes no such distinction.
     76  1.58.4.2       pk  *
     77  1.58.4.2       pk  * Since each virtual segment covers 256 kbytes, the user space
     78  1.58.4.2       pk  * requires 3584 segments, while the kernel (including DVMA) requires
     79  1.58.4.2       pk  * only 512 segments.
     80  1.58.4.2       pk  *
     81  1.58.4.2       pk  *
     82  1.58.4.2       pk  ** FOR THE SUN4/SUN4C
     83  1.58.4.2       pk  *
     84  1.58.4.2       pk  * The segment map entry for virtual segment vseg is offset in
     85  1.58.4.2       pk  * pmap->pm_rsegmap by 0 if pmap is not the kernel pmap, or by
     86  1.58.4.2       pk  * NUSEG if it is.  We keep a pointer called pmap->pm_segmap
     87  1.58.4.2       pk  * pre-offset by this value.  pmap->pm_segmap thus contains the
     88  1.58.4.2       pk  * values to be loaded into the user portion of the hardware segment
     89  1.58.4.2       pk  * map so as to reach the proper PMEGs within the MMU.  The kernel
     90  1.58.4.2       pk  * mappings are `set early' and are always valid in every context
     91  1.58.4.2       pk  * (every change is always propagated immediately).
     92  1.58.4.2       pk  *
     93  1.58.4.2       pk  * The PMEGs within the MMU are loaded `on demand'; when a PMEG is
     94  1.58.4.2       pk  * taken away from context `c', the pmap for context c has its
     95  1.58.4.2       pk  * corresponding pm_segmap[vseg] entry marked invalid (the MMU segment
     96  1.58.4.2       pk  * map entry is also made invalid at the same time).  Thus
     97  1.58.4.2       pk  * pm_segmap[vseg] is the `invalid pmeg' number (127 or 511) whenever
     98  1.58.4.2       pk  * the corresponding PTEs are not actually in the MMU.  On the other
     99  1.58.4.2       pk  * hand, pm_pte[vseg] is NULL only if no pages in that virtual segment
    100  1.58.4.2       pk  * are in core; otherwise it points to a copy of the 32 or 64 PTEs that
    101  1.58.4.2       pk  * must be loaded in the MMU in order to reach those pages.
    102  1.58.4.2       pk  * pm_npte[vseg] counts the number of valid pages in each vseg.
    103  1.58.4.2       pk  *
    104  1.58.4.2       pk  * XXX performance: faster to count valid bits?
    105  1.58.4.2       pk  *
    106  1.58.4.2       pk  * The kernel pmap cannot malloc() PTEs since malloc() will sometimes
    107  1.58.4.2       pk  * allocate a new virtual segment.  Since kernel mappings are never
    108  1.58.4.2       pk  * `stolen' out of the MMU, we just keep all its PTEs there, and have
    109  1.58.4.2       pk  * no software copies.  Its mmu entries are nonetheless kept on lists
    110  1.58.4.2       pk  * so that the code that fiddles with mmu lists has something to fiddle.
    111  1.58.4.2       pk  *
    112  1.58.4.4  nathanw  ** FOR THE SUN4M/SUN4D
    113  1.58.4.2       pk  *
    114  1.58.4.2       pk  * On this architecture, the virtual-to-physical translation (page) tables
    115  1.58.4.2       pk  * are *not* stored within the MMU as they are in the earlier Sun architect-
    116  1.58.4.2       pk  * ures; instead, they are maintained entirely within physical memory (there
    117  1.58.4.2       pk  * is a TLB cache to prevent the high performance hit from keeping all page
    118  1.58.4.2       pk  * tables in core). Thus there is no need to dynamically allocate PMEGs or
    119  1.58.4.2       pk  * SMEGs; only contexts must be shared.
    120  1.58.4.2       pk  *
    121  1.58.4.2       pk  * We maintain two parallel sets of tables: one is the actual MMU-edible
    122  1.58.4.2       pk  * hierarchy of page tables in allocated kernel memory; these tables refer
    123  1.58.4.2       pk  * to each other by physical address pointers in SRMMU format (thus they
    124  1.58.4.2       pk  * are not very useful to the kernel's management routines). The other set
    125  1.58.4.2       pk  * of tables is similar to those used for the Sun4/100's 3-level MMU; it
    126  1.58.4.2       pk  * is a hierarchy of regmap and segmap structures which contain kernel virtual
    127  1.58.4.2       pk  * pointers to each other. These must (unfortunately) be kept in sync.
    128  1.58.4.2       pk  *
    129  1.58.4.2       pk  */
    130  1.58.4.2       pk #define NKREG	((int)((-(unsigned)KERNBASE) / NBPRG))	/* i.e., 8 */
    131  1.58.4.2       pk #define NUREG	(256 - NKREG)				/* i.e., 248 */
    132  1.58.4.2       pk 
    133  1.58.4.2       pk TAILQ_HEAD(mmuhd,mmuentry);
    134  1.58.4.2       pk 
    135  1.58.4.2       pk /*
    136  1.58.4.2       pk  * data appearing in both user and kernel pmaps
    137  1.58.4.2       pk  *
    138  1.58.4.2       pk  * note: if we want the same binaries to work on the 4/4c and 4m, we have to
    139  1.58.4.2       pk  *       include the fields for both to make sure that the struct kproc
    140  1.58.4.2       pk  * 	 is the same size.
    141  1.58.4.2       pk  */
    142  1.58.4.2       pk struct pmap {
    143  1.58.4.2       pk 	union	ctxinfo *pm_ctx;	/* current context, if any */
    144  1.58.4.2       pk 	int	pm_ctxnum;		/* current context's number */
    145  1.58.4.7  thorpej 	u_int	pm_cpuset;		/* CPU's this pmap has context on */
    146  1.58.4.2       pk 	struct simplelock pm_lock;	/* spinlock */
    147  1.58.4.2       pk 	int	pm_refcount;		/* just what it says */
    148  1.58.4.2       pk 
    149  1.58.4.2       pk 	struct mmuhd	pm_reglist;	/* MMU regions on this pmap (4/4c) */
    150  1.58.4.2       pk 	struct mmuhd	pm_seglist;	/* MMU segments on this pmap (4/4c) */
    151  1.58.4.2       pk 
    152  1.58.4.2       pk 	struct regmap	*pm_regmap;
    153  1.58.4.2       pk 
    154  1.58.4.2       pk 	int		**pm_reg_ptps;	/* SRMMU-edible region tables for 4m */
    155  1.58.4.2       pk 	int		*pm_reg_ptps_pa;/* _Physical_ address of pm_reg_ptps */
    156  1.58.4.2       pk 
    157  1.58.4.2       pk 	int		pm_gap_start;	/* Starting with this vreg there's */
    158  1.58.4.2       pk 	int		pm_gap_end;	/* no valid mapping until here */
    159  1.58.4.2       pk 
    160  1.58.4.2       pk 	struct pmap_statistics	pm_stats;	/* pmap statistics */
    161  1.58.4.2       pk };
    162  1.58.4.2       pk 
    163  1.58.4.2       pk struct regmap {
    164  1.58.4.2       pk 	struct segmap	*rg_segmap;	/* point to NSGPRG PMEGs */
    165  1.58.4.2       pk 	int		*rg_seg_ptps; 	/* SRMMU-edible segment tables (NULL
    166  1.58.4.2       pk 					 * indicates invalid region (4m) */
    167  1.58.4.2       pk 	smeg_t		rg_smeg;	/* the MMU region number (4c) */
    168  1.58.4.2       pk 	u_char		rg_nsegmap;	/* number of valid PMEGS */
    169  1.58.4.2       pk };
    170  1.58.4.2       pk 
    171  1.58.4.2       pk struct segmap {
    172  1.58.4.2       pk 	int	*sg_pte;		/* points to NPTESG PTEs */
    173  1.58.4.2       pk 	pmeg_t	sg_pmeg;		/* the MMU segment number (4c) */
    174  1.58.4.2       pk 	u_char	sg_npte;		/* number of valid PTEs per seg */
    175  1.58.4.2       pk };
    176  1.58.4.2       pk 
    177  1.58.4.2       pk typedef struct pmap *pmap_t;
    178  1.58.4.2       pk 
    179  1.58.4.2       pk #if 0
    180  1.58.4.2       pk struct kvm_cpustate {
    181  1.58.4.2       pk 	int		kvm_npmemarr;
    182  1.58.4.2       pk 	struct memarr	kvm_pmemarr[MA_SIZE];
    183  1.58.4.2       pk 	int		kvm_seginval;			/* [4,4c] */
    184  1.58.4.2       pk 	struct segmap	kvm_segmap_store[NKREG*NSEGRG];	/* [4,4c] */
    185  1.58.4.2       pk }/*not yet used*/;
    186  1.58.4.2       pk #endif
    187  1.58.4.2       pk 
    188  1.58.4.2       pk #ifdef _KERNEL
    189  1.58.4.2       pk 
    190  1.58.4.2       pk #define PMAP_NULL	((pmap_t)0)
    191  1.58.4.2       pk 
    192  1.58.4.2       pk extern struct pmap	kernel_pmap_store;
    193  1.58.4.2       pk 
    194  1.58.4.2       pk /*
    195  1.58.4.2       pk  * Bounds on managed physical addresses. Used by (MD) users
    196  1.58.4.2       pk  * of uvm_pglistalloc() to provide search hints.
    197  1.58.4.2       pk  */
    198  1.58.4.2       pk extern paddr_t		vm_first_phys, vm_last_phys;
    199  1.58.4.2       pk extern psize_t		vm_num_phys;
    200  1.58.4.2       pk 
    201  1.58.4.2       pk /*
    202  1.58.4.2       pk  * Since PTEs also contain type bits, we have to have some way
    203  1.58.4.2       pk  * to tell pmap_enter `this is an IO page' or `this is not to
    204  1.58.4.2       pk  * be cached'.  Since physical addresses are always aligned, we
    205  1.58.4.2       pk  * can do this with the low order bits.
    206  1.58.4.2       pk  *
    207  1.58.4.2       pk  * The ordering below is important: PMAP_PGTYPE << PG_TNC must give
    208  1.58.4.2       pk  * exactly the PG_NC and PG_TYPE bits.
    209  1.58.4.2       pk  */
    210  1.58.4.2       pk #define	PMAP_OBIO	1		/* tells pmap_enter to use PG_OBIO */
    211  1.58.4.2       pk #define	PMAP_VME16	2		/* etc */
    212  1.58.4.2       pk #define	PMAP_VME32	3		/* etc */
    213  1.58.4.2       pk #define	PMAP_NC		4		/* tells pmap_enter to set PG_NC */
    214  1.58.4.2       pk #define	PMAP_TNC_4	7		/* mask to get PG_TYPE & PG_NC */
    215  1.58.4.2       pk 
    216  1.58.4.2       pk #define	PMAP_T2PTE_4(x)		(((x) & PMAP_TNC_4) << PG_TNC_SHIFT)
    217  1.58.4.2       pk #define	PMAP_IOENC_4(io)	(io)
    218  1.58.4.2       pk 
    219  1.58.4.2       pk /*
    220  1.58.4.2       pk  * On a SRMMU machine, the iospace is encoded in bits [3-6] of the
    221  1.58.4.2       pk  * physical address passed to pmap_enter().
    222  1.58.4.2       pk  */
    223  1.58.4.2       pk #define PMAP_TYPE_SRMMU		0x78	/* mask to get 4m page type */
    224  1.58.4.2       pk #define PMAP_PTESHFT_SRMMU	25	/* right shift to put type in pte */
    225  1.58.4.2       pk #define PMAP_SHFT_SRMMU		3	/* left shift to extract iospace */
    226  1.58.4.2       pk #define	PMAP_TNC_SRMMU		127	/* mask to get PG_TYPE & PG_NC */
    227  1.58.4.2       pk 
    228  1.58.4.2       pk /*#define PMAP_IOC      0x00800000      -* IO cacheable, NOT shifted */
    229  1.58.4.2       pk 
    230  1.58.4.2       pk #define PMAP_T2PTE_SRMMU(x)	(((x) & PMAP_TYPE_SRMMU) << PMAP_PTESHFT_SRMMU)
    231  1.58.4.2       pk #define PMAP_IOENC_SRMMU(io)	((io) << PMAP_SHFT_SRMMU)
    232  1.58.4.2       pk 
    233  1.58.4.2       pk /* Encode IO space for pmap_enter() */
    234  1.58.4.4  nathanw #define PMAP_IOENC(io)	(CPU_HAS_SRMMU ? PMAP_IOENC_SRMMU(io) \
    235  1.58.4.4  nathanw 				       : PMAP_IOENC_4(io))
    236  1.58.4.2       pk 
    237  1.58.4.2       pk int             pmap_dumpsize __P((void));
    238  1.58.4.2       pk int             pmap_dumpmmu __P((int (*)__P((dev_t, daddr_t, caddr_t, size_t)),
    239  1.58.4.2       pk                                  daddr_t));
    240  1.58.4.2       pk 
    241  1.58.4.2       pk #define	pmap_kernel()	(&kernel_pmap_store)
    242  1.58.4.2       pk #define	pmap_resident_count(pmap)	pmap_count_ptes(pmap)
    243  1.58.4.2       pk 
    244  1.58.4.2       pk #define PMAP_PREFER(fo, ap)		pmap_prefer((fo), (ap))
    245  1.58.4.2       pk 
    246  1.58.4.2       pk #define PMAP_EXCLUDE_DECLS	/* tells MI pmap.h *not* to include decls */
    247  1.58.4.2       pk 
    248  1.58.4.2       pk /* FUNCTION DECLARATIONS FOR COMMON PMAP MODULE */
    249  1.58.4.2       pk 
    250  1.58.4.2       pk void		pmap_activate __P((struct lwp *));
    251  1.58.4.2       pk void		pmap_deactivate __P((struct lwp *));
    252  1.58.4.2       pk void		pmap_bootstrap __P((int nmmu, int nctx, int nregion));
    253  1.58.4.2       pk int		pmap_count_ptes __P((struct pmap *));
    254  1.58.4.2       pk void		pmap_prefer __P((vaddr_t, vaddr_t *));
    255  1.58.4.2       pk int		pmap_pa_exists __P((paddr_t));
    256  1.58.4.2       pk void		pmap_unwire __P((pmap_t, vaddr_t));
    257  1.58.4.2       pk void		pmap_collect __P((pmap_t));
    258  1.58.4.2       pk void		pmap_copy __P((pmap_t, pmap_t, vaddr_t, vsize_t, vaddr_t));
    259  1.58.4.2       pk pmap_t		pmap_create __P((void));
    260  1.58.4.2       pk void		pmap_destroy __P((pmap_t));
    261  1.58.4.2       pk void		pmap_init __P((void));
    262  1.58.4.2       pk vaddr_t		pmap_map __P((vaddr_t, paddr_t, paddr_t, int));
    263  1.58.4.2       pk paddr_t		pmap_phys_address __P((int));
    264  1.58.4.2       pk void		pmap_reference __P((pmap_t));
    265  1.58.4.2       pk void		pmap_remove __P((pmap_t, vaddr_t, vaddr_t));
    266  1.58.4.2       pk #define		pmap_update(pmap)		/* nothing (yet) */
    267  1.58.4.2       pk void		pmap_virtual_space __P((vaddr_t *, vaddr_t *));
    268  1.58.4.2       pk void		pmap_redzone __P((void));
    269  1.58.4.2       pk void		kvm_uncache __P((caddr_t, int));
    270  1.58.4.2       pk struct user;
    271  1.58.4.2       pk int		mmu_pagein __P((struct pmap *pm, vaddr_t, int));
    272  1.58.4.2       pk void		pmap_writetext __P((unsigned char *, int));
    273  1.58.4.2       pk void		pmap_globalize_boot_cpuinfo __P((struct cpu_info *));
    274  1.58.4.2       pk 
    275  1.58.4.5  nathanw static __inline void
    276  1.58.4.5  nathanw pmap_remove_all(struct pmap *pmap)
    277  1.58.4.5  nathanw {
    278  1.58.4.5  nathanw 	/* Nothing. */
    279  1.58.4.5  nathanw }
    280  1.58.4.2       pk 
    281  1.58.4.2       pk /* SUN4/SUN4C SPECIFIC DECLARATIONS */
    282  1.58.4.2       pk 
    283  1.58.4.2       pk #if defined(SUN4) || defined(SUN4C)
    284  1.58.4.2       pk boolean_t	pmap_clear_modify4_4c __P((struct vm_page *));
    285  1.58.4.2       pk boolean_t	pmap_clear_reference4_4c __P((struct vm_page *));
    286  1.58.4.2       pk void		pmap_copy_page4_4c __P((paddr_t, paddr_t));
    287  1.58.4.2       pk int		pmap_enter4_4c __P((pmap_t, vaddr_t, paddr_t, vm_prot_t,
    288  1.58.4.2       pk 		    int));
    289  1.58.4.2       pk boolean_t	pmap_extract4_4c __P((pmap_t, vaddr_t, paddr_t *));
    290  1.58.4.2       pk boolean_t	pmap_is_modified4_4c __P((struct vm_page *));
    291  1.58.4.2       pk boolean_t	pmap_is_referenced4_4c __P((struct vm_page *));
    292  1.58.4.2       pk void		pmap_kenter_pa4_4c __P((vaddr_t, paddr_t, vm_prot_t));
    293  1.58.4.2       pk void		pmap_kremove4_4c __P((vaddr_t, vsize_t));
    294  1.58.4.2       pk void		pmap_page_protect4_4c __P((struct vm_page *, vm_prot_t));
    295  1.58.4.2       pk void		pmap_protect4_4c __P((pmap_t, vaddr_t, vaddr_t, vm_prot_t));
    296  1.58.4.2       pk void		pmap_zero_page4_4c __P((paddr_t));
    297  1.58.4.2       pk void		pmap_changeprot4_4c __P((pmap_t, vaddr_t, vm_prot_t, int));
    298  1.58.4.2       pk 
    299  1.58.4.4  nathanw #endif /* defined SUN4 || defined SUN4C */
    300  1.58.4.2       pk 
    301  1.58.4.4  nathanw /* SIMILAR DECLARATIONS FOR SUN4M/SUN4D MODULE */
    302  1.58.4.2       pk 
    303  1.58.4.4  nathanw #if defined(SUN4M) || defined(SUN4D)
    304  1.58.4.2       pk boolean_t	pmap_clear_modify4m __P((struct vm_page *));
    305  1.58.4.2       pk boolean_t	pmap_clear_reference4m __P((struct vm_page *));
    306  1.58.4.2       pk void		pmap_copy_page4m __P((paddr_t, paddr_t));
    307  1.58.4.2       pk void		pmap_copy_page_viking_mxcc(paddr_t, paddr_t);
    308  1.58.4.2       pk void		pmap_copy_page_hypersparc(paddr_t, paddr_t);
    309  1.58.4.2       pk int		pmap_enter4m __P((pmap_t, vaddr_t, paddr_t, vm_prot_t,
    310  1.58.4.2       pk 		    int));
    311  1.58.4.2       pk boolean_t	pmap_extract4m __P((pmap_t, vaddr_t, paddr_t *));
    312  1.58.4.2       pk boolean_t	pmap_is_modified4m __P((struct vm_page *));
    313  1.58.4.2       pk boolean_t	pmap_is_referenced4m __P((struct vm_page *));
    314  1.58.4.2       pk void		pmap_kenter_pa4m __P((vaddr_t, paddr_t, vm_prot_t));
    315  1.58.4.2       pk void		pmap_kremove4m __P((vaddr_t, vsize_t));
    316  1.58.4.2       pk void		pmap_page_protect4m __P((struct vm_page *, vm_prot_t));
    317  1.58.4.2       pk void		pmap_protect4m __P((pmap_t, vaddr_t, vaddr_t, vm_prot_t));
    318  1.58.4.2       pk void		pmap_zero_page4m __P((paddr_t));
    319  1.58.4.2       pk void		pmap_zero_page_viking_mxcc(paddr_t);
    320  1.58.4.2       pk void		pmap_zero_page_hypersparc(paddr_t);
    321  1.58.4.2       pk void		pmap_changeprot4m __P((pmap_t, vaddr_t, vm_prot_t, int));
    322  1.58.4.2       pk 
    323  1.58.4.4  nathanw #endif /* defined SUN4M || defined SUN4D */
    324  1.58.4.2       pk 
    325  1.58.4.4  nathanw #if !(defined(SUN4M) || defined(SUN4D)) && (defined(SUN4) || defined(SUN4C))
    326  1.58.4.2       pk 
    327  1.58.4.2       pk #define		pmap_clear_modify	pmap_clear_modify4_4c
    328  1.58.4.2       pk #define		pmap_clear_reference	pmap_clear_reference4_4c
    329  1.58.4.2       pk #define		pmap_enter		pmap_enter4_4c
    330  1.58.4.2       pk #define		pmap_extract		pmap_extract4_4c
    331  1.58.4.2       pk #define		pmap_is_modified	pmap_is_modified4_4c
    332  1.58.4.2       pk #define		pmap_is_referenced	pmap_is_referenced4_4c
    333  1.58.4.2       pk #define		pmap_kenter_pa		pmap_kenter_pa4_4c
    334  1.58.4.2       pk #define		pmap_kremove		pmap_kremove4_4c
    335  1.58.4.2       pk #define		pmap_page_protect	pmap_page_protect4_4c
    336  1.58.4.2       pk #define		pmap_protect		pmap_protect4_4c
    337  1.58.4.2       pk #define		pmap_changeprot		pmap_changeprot4_4c
    338  1.58.4.2       pk 
    339  1.58.4.4  nathanw #elif (defined(SUN4M) || defined(SUN4D)) && !(defined(SUN4) || defined(SUN4C))
    340  1.58.4.2       pk 
    341  1.58.4.2       pk #define		pmap_clear_modify	pmap_clear_modify4m
    342  1.58.4.2       pk #define		pmap_clear_reference	pmap_clear_reference4m
    343  1.58.4.2       pk #define		pmap_enter		pmap_enter4m
    344  1.58.4.2       pk #define		pmap_extract		pmap_extract4m
    345  1.58.4.2       pk #define		pmap_is_modified	pmap_is_modified4m
    346  1.58.4.2       pk #define		pmap_is_referenced	pmap_is_referenced4m
    347  1.58.4.2       pk #define		pmap_kenter_pa		pmap_kenter_pa4m
    348  1.58.4.2       pk #define		pmap_kremove		pmap_kremove4m
    349  1.58.4.2       pk #define		pmap_page_protect	pmap_page_protect4m
    350  1.58.4.2       pk #define		pmap_protect		pmap_protect4m
    351  1.58.4.2       pk #define		pmap_changeprot		pmap_changeprot4m
    352  1.58.4.2       pk 
    353  1.58.4.2       pk #else  /* must use function pointers */
    354  1.58.4.2       pk 
    355  1.58.4.2       pk extern boolean_t(*pmap_clear_modify_p) __P((struct vm_page *));
    356  1.58.4.2       pk extern boolean_t(*pmap_clear_reference_p) __P((struct vm_page *));
    357  1.58.4.2       pk extern int	(*pmap_enter_p) __P((pmap_t, vaddr_t, paddr_t, vm_prot_t,
    358  1.58.4.2       pk 		    int));
    359  1.58.4.2       pk extern boolean_t (*pmap_extract_p) __P((pmap_t, vaddr_t, paddr_t *));
    360  1.58.4.2       pk extern boolean_t(*pmap_is_modified_p) __P((struct vm_page *));
    361  1.58.4.2       pk extern boolean_t(*pmap_is_referenced_p) __P((struct vm_page *));
    362  1.58.4.2       pk extern void	(*pmap_kenter_pa_p) __P((vaddr_t, paddr_t, vm_prot_t));
    363  1.58.4.2       pk extern void	(*pmap_kremove_p) __P((vaddr_t, vsize_t));
    364  1.58.4.2       pk extern void	(*pmap_page_protect_p) __P((struct vm_page *, vm_prot_t));
    365  1.58.4.2       pk extern void	(*pmap_protect_p) __P((pmap_t, vaddr_t, vaddr_t, vm_prot_t));
    366  1.58.4.2       pk extern void	(*pmap_changeprot_p) __P((pmap_t, vaddr_t, vm_prot_t, int));
    367  1.58.4.2       pk 
    368  1.58.4.2       pk #define		pmap_clear_modify	(*pmap_clear_modify_p)
    369  1.58.4.2       pk #define		pmap_clear_reference	(*pmap_clear_reference_p)
    370  1.58.4.2       pk #define		pmap_enter		(*pmap_enter_p)
    371  1.58.4.2       pk #define		pmap_extract		(*pmap_extract_p)
    372  1.58.4.2       pk #define		pmap_is_modified	(*pmap_is_modified_p)
    373  1.58.4.2       pk #define		pmap_is_referenced	(*pmap_is_referenced_p)
    374  1.58.4.2       pk #define		pmap_kenter_pa		(*pmap_kenter_pa_p)
    375  1.58.4.2       pk #define		pmap_kremove		(*pmap_kremove_p)
    376  1.58.4.2       pk #define		pmap_page_protect	(*pmap_page_protect_p)
    377  1.58.4.2       pk #define		pmap_protect		(*pmap_protect_p)
    378  1.58.4.2       pk #define		pmap_changeprot		(*pmap_changeprot_p)
    379  1.58.4.2       pk 
    380  1.58.4.2       pk #endif
    381  1.58.4.2       pk 
    382  1.58.4.2       pk /* pmap_{zero,copy}_page() may be assisted by specialized hardware */
    383  1.58.4.2       pk #define		pmap_zero_page		(*cpuinfo.zero_page)
    384  1.58.4.2       pk #define		pmap_copy_page		(*cpuinfo.copy_page)
    385  1.58.4.2       pk 
    386  1.58.4.4  nathanw #if defined(SUN4M) || defined(SUN4D)
    387  1.58.4.2       pk /*
    388  1.58.4.2       pk  * Macros which implement SRMMU TLB flushing/invalidation
    389  1.58.4.2       pk  */
    390  1.58.4.2       pk #define tlb_flush_page_real(va)    \
    391  1.58.4.6  thorpej 	sta(((vaddr_t)(va) & 0xfffff000) | ASI_SRMMUFP_L3, ASI_SRMMUFP, 0)
    392  1.58.4.2       pk 
    393  1.58.4.6  thorpej #define tlb_flush_segment_real(va) \
    394  1.58.4.6  thorpej 	sta(((vaddr_t)(va) & 0xfffc0000) | ASI_SRMMUFP_L2, ASI_SRMMUFP, 0)
    395  1.58.4.2       pk 
    396  1.58.4.6  thorpej #define tlb_flush_region_real(va) \
    397  1.58.4.6  thorpej 	sta(((vaddr_t)(va) & 0xff000000) | ASI_SRMMUFP_L1, ASI_SRMMUFP, 0)
    398  1.58.4.2       pk 
    399  1.58.4.2       pk #define tlb_flush_context_real()	sta(ASI_SRMMUFP_L0, ASI_SRMMUFP, 0)
    400  1.58.4.2       pk #define tlb_flush_all_real()		sta(ASI_SRMMUFP_LN, ASI_SRMMUFP, 0)
    401  1.58.4.2       pk 
    402  1.58.4.4  nathanw #endif /* SUN4M || SUN4D */
    403  1.58.4.2       pk 
    404  1.58.4.2       pk #endif /* _KERNEL */
    405  1.58.4.2       pk 
    406  1.58.4.2       pk #endif /* _SPARC_PMAP_H_ */
    407