sys/arch/hppa/include/pte.h

   1 /*      $NetBSD: pte.h,v 1.2.120.2 2008/10/29 19:35:19 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@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 #define TLB_WIRED       0x40000000      /* software only */
  44 #define TLB_REFTRAP     0x20000000      /* bit 2, T */
  45 #define TLB_DIRTY       0x10000000      /* bit 3, D */
  46 #define TLB_BREAK       0x08000000      /* bit 4, B */
  47 #define TLB_AR_MASK     0x07f00000      /* bits 5-11, Access Rights */
  48 #define TLB_READ        0x00000000
  49 #define TLB_WRITE       0x01000000
  50 #define TLB_EXECUTE     0x02000000
  51 #define TLB_GATEWAY     0x04000000
  52 #define TLB_USER        0x00f00000
  53 #define  TLB_AR_NA      0x07300000
  54 #define  TLB_AR_R       TLB_READ
  55 #define  TLB_AR_RW      TLB_READ|TLB_WRITE
  56 #define  TLB_AR_RX      TLB_READ|TLB_EXECUTE
  57 #define  TLB_AR_RWX     TLB_READ|TLB_WRITE|TLB_EXECUTE
  58 #define TLB_UNCACHEABLE 0x00080000      /* bit 12, U */
  59                                         /* bit 13-30, Access ID */
  60 #define TLB_PID_MASK    0x0000fffe
  61
  62 #define TLB_BITS        \
  63         "\177\020"      /* New bitmask */               \
  64         "b\036WIRED\0"  /* bit 30 (1) */                \
  65         "b\035T\0"      /* bit 29 (2) */                \
  66         "b\034D\0"      /* bit 28 (3) */                \
  67         "b\033B\0"      /* bit 27 (4) */                \
  68         "b\023U\0"      /* bit 19 (12) */               \
  69         "f\024\07AR\0"  /* bit 20 (11) .. 26 (5) */     \
  70             "=\x73" "------\0"                          \
  71             "=\x00" "r-----\0"                          \
  72             "=\x10" "rw----\0"                          \
  73             "=\x20" "r-x---\0"                          \
  74             "=\x30" "rwx---\0"                          \
  75             "=\x0f" "r--r--\0"                          \
  76             "=\x1f" "rw-rw-\0"                          \
  77             "=\x2f" "r-xr-x\0"                          \
  78             "=\x3f" "rwxrwx\0"                          \
  79             "=\x4c" "gate\0"                            \
  80             "=\x2c" "break\0"                           \
  81         "f\001\017PID\0\0" /* bit 1 (30) .. 15 (16)     */
  82
  83 /* protection for a gateway page */
  84 #define TLB_GATE_PROT   0x04c00000
  85
  86 /* protection for break page */
  87 #define TLB_BREAK_PROT  0x02c00000
  88
  89 #endif  /* _HPPA_PTE_H_ */