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      1 /*	$NetBSD: pte.h,v 1.5 2019/04/16 12:25:17 skrll Exp $	*/
      2 
      3 /*	$OpenBSD: pte.h,v 1.11 2002/09/05 18:41:19 mickey Exp $	*/
      4 
      5 /*
      6  * Copyright (c) 1990,1993,1994 The University of Utah and
      7  * the Computer Systems Laboratory at the University of Utah (CSL).
      8  * All rights reserved.
      9  *
     10  * Permission to use, copy, modify and distribute this software is hereby
     11  * granted provided that (1) source code retains these copyright, permission,
     12  * and disclaimer notices, and (2) redistributions including binaries
     13  * reproduce the notices in supporting documentation, and (3) all advertising
     14  * materials mentioning features or use of this software display the following
     15  * acknowledgement: ``This product includes software developed by the
     16  * Computer Systems Laboratory at the University of Utah.''
     17  *
     18  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
     19  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
     20  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     21  *
     22  * CSL requests users of this software to return to csl-dist (at) cs.utah.edu any
     23  * improvements that they make and grant CSL redistribution rights.
     24  *
     25  * 	Utah $Hdr: pmap.h 1.24 94/12/14$
     26  *	Author: Mike Hibler, Bob Wheeler, University of Utah CSL, 9/90
     27  */
     28 
     29 #ifndef	_HPPA_PTE_H_
     30 #define	_HPPA_PTE_H_
     31 
     32 typedef	uint32_t	pt_entry_t;
     33 
     34 #define	PTE_PROT_SHIFT	19
     35 #define	PTE_PROT(tlb)	((tlb) >> PTE_PROT_SHIFT)
     36 #define	TLB_PROT(pte)	((pte) << PTE_PROT_SHIFT)
     37 #define	PDE_MASK	(0xffc00000)
     38 #define	PDE_SIZE	(0x00400000)
     39 #define	PTE_MASK	(0x003ff000)
     40 #define	PTE_PAGE(pte)	((pte) & ~PGOFSET)
     41 
     42 /* TLB access/protection values */
     43 /*			0x80000000 has no pt_entry_t equivalent */
     44 #define	TLB_WIRED	0x40000000	/* software only */
     45 #define	TLB_REFTRAP	0x20000000	/* bit 2, T */
     46 #define	TLB_DIRTY	0x10000000	/* bit 3, D */
     47 #define	TLB_BREAK	0x08000000	/* bit 4, B */
     48 #define	TLB_AR_MASK	0x07f00000	/* bits 5-11, Access Rights */
     49 #define	TLB_READ	0x00000000
     50 #define	TLB_WRITE	0x01000000
     51 #define	TLB_EXECUTE	0x02000000
     52 #define	TLB_GATEWAY	0x04000000
     53 #define	TLB_USER	0x00f00000
     54 #define	 TLB_AR_NA	0x07300000
     55 #define	 TLB_AR_R	TLB_READ
     56 #define	 TLB_AR_RW	TLB_READ|TLB_WRITE
     57 #define	 TLB_AR_RX	TLB_READ|TLB_EXECUTE
     58 #define	 TLB_AR_RWX	TLB_READ|TLB_WRITE|TLB_EXECUTE
     59 #define	TLB_UNCACHEABLE	0x00080000	/* bit 12, U */
     60 					/* bit 13-30, Access ID */
     61 #define	TLB_PID_MASK	0x0000fffe
     62 /*			0x00000001 has no pt_entry_t equivalent */
     63 
     64 #define TLB_BITS	\
     65 	"\177\020"	/* New bitmask */		\
     66 	"b\036wired\0"		/* bit 30 (1) */		\
     67 	"b\035T\0"		/* bit 29 (2) */		\
     68 	"b\034D\0"		/* bit 28 (3) */		\
     69 	"b\033B\0"		/* bit 27 (4) */		\
     70 	"b\023U\0"		/* bit 19 (12) */		\
     71 	"f\024\07ar\0"		/* bit 20 (11) .. 26 (5) */	\
     72 	    "=\x73" "------\0"					\
     73 	    "=\x00" "r-----\0"					\
     74 	    "=\x10" "rw----\0"					\
     75 	    "=\x20" "r-x---\0"					\
     76 	    "=\x30" "rwx---\0"					\
     77 	    "=\x0f" "r--r--\0"					\
     78 	    "=\x1f" "rw-rw-\0"					\
     79 	    "=\x2f" "r-xr-x\0"					\
     80 	    "=\x3f" "rwxrwx\0"					\
     81 	    "=\x4c" "gate\0"					\
     82 	    "=\x2c" "break\0"					\
     83 	"f\001\017pid\0\0"	 /* bit 1 (30) .. 15 (16)	*/
     84 
     85 /* protection for a gateway page */
     86 #define	TLB_GATE_PROT	0x04c00000
     87 
     88 /* protection for break page */
     89 #define	TLB_BREAK_PROT	0x02c00000
     90 
     91 #endif	/* _HPPA_PTE_H_ */
     92