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Annotation of sys/arch/hppa/include/pte.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: pte.h,v 1.11 2002/09/05 18:41:19 mickey Exp $ */
                      2:
                      3: /*
                      4:  * Copyright (c) 1990,1993,1994 The University of Utah and
                      5:  * the Computer Systems Laboratory at the University of Utah (CSL).
                      6:  * All rights reserved.
                      7:  *
                      8:  * Permission to use, copy, modify and distribute this software is hereby
                      9:  * granted provided that (1) source code retains these copyright, permission,
                     10:  * and disclaimer notices, and (2) redistributions including binaries
                     11:  * reproduce the notices in supporting documentation, and (3) all advertising
                     12:  * materials mentioning features or use of this software display the following
                     13:  * acknowledgement: ``This product includes software developed by the
                     14:  * Computer Systems Laboratory at the University of Utah.''
                     15:  *
                     16:  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
                     17:  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
                     18:  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     19:  *
                     20:  * CSL requests users of this software to return to csl-dist@cs.utah.edu any
                     21:  * improvements that they make and grant CSL redistribution rights.
                     22:  *
                     23:  *     Utah $Hdr: pmap.h 1.24 94/12/14$
                     24:  *     Author: Mike Hibler, Bob Wheeler, University of Utah CSL, 9/90
                     25:  */
                     26:
                     27: #ifndef        _MACHINE_PTE_H_
                     28: #define        _MACHINE_PTE_H_
                     29:
                     30: typedef        u_int32_t       pt_entry_t;
                     31:
                     32: #define        PTE_PROT_SHIFT  19
                     33: #define        PTE_PROT(tlb)   ((tlb) >> PTE_PROT_SHIFT)
                     34: #define        TLB_PROT(pte)   ((pte) << PTE_PROT_SHIFT)
                     35: #define        PDE_MASK        (0xffc00000)
                     36: #define        PDE_SIZE        (0x00400000)
                     37: #define        PTE_MASK        (0x003ff000)
                     38: #define        PTE_PAGE(pte)   ((pte) & ~PGOFSET)
                     39:
                     40: /* TLB access/protection values */
                     41: #define TLB_WIRED      0x40000000      /* software only */
                     42: #define TLB_REFTRAP    0x20000000
                     43: #define TLB_DIRTY      0x10000000
                     44: #define TLB_BREAK      0x08000000
                     45: #define TLB_AR_MASK    0x07f00000
                     46: #define        TLB_READ        0x00000000
                     47: #define        TLB_WRITE       0x01000000
                     48: #define        TLB_EXECUTE     0x02000000
                     49: #define        TLB_GATEWAY     0x04000000
                     50: #define        TLB_USER        0x00f00000
                     51: #define                TLB_AR_NA       0x07300000
                     52: #define                TLB_AR_R        TLB_READ
                     53: #define                TLB_AR_RW       TLB_READ|TLB_WRITE
                     54: #define                TLB_AR_RX       TLB_READ|TLB_EXECUTE
                     55: #define                TLB_AR_RWX      TLB_READ|TLB_WRITE|TLB_EXECUTE
                     56: #define TLB_UNCACHABLE 0x00080000
                     57: #define TLB_PID_MASK   0x0000fffe
                     58:
                     59: #define        TLB_BITS        "\020\024U\031W\032X\033N\034B\035D\036R\037H"
                     60:
                     61: /* protection for a gateway page */
                     62: #define TLB_GATE_PROT  0x04c00000
                     63:
                     64: /* protection for break page */
                     65: #define TLB_BREAK_PROT 0x02c00000
                     66:
                     67: #endif /* _MACHINE_PTE_H_ */