Annotation of sys/arch/powerpc/include/pte.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pte.h,v 1.9 2005/12/17 07:31:26 miod Exp $ */
! 2: /* $NetBSD: pte.h,v 1.1 1996/09/30 16:34:32 ws Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (C) 1995, 1996 Wolfgang Solfrank.
! 6: * Copyright (C) 1995, 1996 TooLs GmbH.
! 7: * All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: * 3. All advertising materials mentioning features or use of this software
! 18: * must display the following acknowledgement:
! 19: * This product includes software developed by TooLs GmbH.
! 20: * 4. The name of TooLs GmbH may not be used to endorse or promote products
! 21: * derived from this software without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
! 24: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 25: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 26: * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
! 27: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
! 28: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
! 29: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
! 30: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
! 31: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
! 32: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 33: */
! 34:
! 35: #ifndef _POWERPC_PTE_H_
! 36: #define _POWERPC_PTE_H_
! 37:
! 38: #include <sys/queue.h>
! 39:
! 40: /*
! 41: * Page Table Entries
! 42: */
! 43: #ifndef _LOCORE
! 44: struct pte_32 {
! 45: u_int32_t pte_hi;
! 46: u_int32_t pte_lo;
! 47: };
! 48: struct pte_64 {
! 49: u_int64_t pte_hi;
! 50: u_int64_t pte_lo;
! 51: };
! 52: #endif /* _LOCORE */
! 53:
! 54: /* 32 bit */
! 55: /* High word: */
! 56: #define PTE_VALID_32 0x80000000
! 57: #define PTE_VSID_SHIFT_32 7
! 58: #define PTE_HID_32 0x00000040
! 59: #define PTE_API_32 0x0000003f
! 60: /* Low word: */
! 61: #define PTE_RPGN_32 0xfffff000
! 62: #define PTE_REF_32 0x00000100
! 63: #define PTE_CHG_32 0x00000080
! 64: #define PTE_WIM_32 0x00000078
! 65: #define PTE_W_32 0x00000040
! 66: #define PTE_EXE_32 0x00000040 /* only used in pmap_attr, same as PTE_W */
! 67: #define PTE_I_32 0x00000020
! 68: #define PTE_M_32 0x00000010
! 69: #define PTE_G_32 0x00000008
! 70: #define PTE_PP_32 0x00000003
! 71: #define PTE_RO_32 0x00000003
! 72: #define PTE_RW_32 0x00000002
! 73:
! 74:
! 75: /* 64 bit */
! 76: /* High doubleword: */
! 77: #define PTE_VALID_64 0x0000000000000001ULL
! 78: #define PTE_AVPN_SHIFT_64 7
! 79: #define PTE_AVPN_64 0xffffffffffffff80ULL
! 80: #define PTE_API_SHIFT_64 7
! 81: #define PTE_API_64 0x0000000000000f80ULL
! 82: #define PTE_VSID_SHIFT_64 12
! 83: #define PTE_VSID_64 0xfffffffffffff000ULL
! 84: #define PTE_HID_64 0x0000000000000002ULL
! 85: /* Low word: */
! 86: #define PTE_RPGN_64 0x3ffffffffffff000ULL
! 87: #define PTE_REF_64 0x0000000000000100ULL
! 88: #define PTE_CHG_64 0x0000000000000080ULL
! 89: #define PTE_WIMG_64 0x0000000000000078ULL
! 90: #define PTE_W_64 0x0000000000000040ULL
! 91: #define PTE_EXE_64 PTE_W
! 92: #define PTE_I_64 0x0000000000000020ULL
! 93: #define PTE_M_64 0x0000000000000010ULL
! 94: #define PTE_G_64 0x0000000000000008ULL
! 95: #define PTE_N_64 0x0000000000000004ULL
! 96: #define PTE_PP_64 0x0000000000000003ULL
! 97: #define PTE_RO_64 0x0000000000000003ULL
! 98: #define PTE_RW_64 0x0000000000000002ULL
! 99:
! 100: #ifndef _LOCORE
! 101: typedef struct pte_32 pte32_t;
! 102: typedef struct pte_64 pte64_t;
! 103: #endif /* _LOCORE */
! 104:
! 105: /*
! 106: * Extract bits from address
! 107: */
! 108: #define ADDR_SR_SHIFT 28
! 109: #define ADDR_PIDX 0x0ffff000
! 110: #define ADDR_PIDX_SHIFT 12
! 111: #define ADDR_API_SHIFT_32 22
! 112: #define ADDR_API_SHIFT_64 16
! 113: #define ADDR_POFF 0x00000fff
! 114:
! 115: #ifndef _LOCORE
! 116: #ifdef _KERNEL
! 117: extern struct pte *ptable;
! 118: extern int ptab_cnt;
! 119: #endif /* _KERNEL */
! 120: #endif /* _LOCORE */
! 121:
! 122: /*
! 123: * Bits in DSISR:
! 124: */
! 125: #define DSISR_DIRECT 0x80000000
! 126: #define DSISR_NOTFOUND 0x40000000
! 127: #define DSISR_PROTECT 0x08000000
! 128: #define DSISR_INVRX 0x04000000
! 129: #define DSISR_STORE 0x02000000
! 130: #define DSISR_DABR 0x00400000
! 131: #define DSISR_SEGMENT 0x00200000
! 132: #define DSISR_EAR 0x00100000
! 133:
! 134: /*
! 135: * Bits in SRR1 on ISI:
! 136: */
! 137: #define ISSRR1_NOTFOUND 0x40000000
! 138: #define ISSRR1_DIRECT 0x10000000
! 139: #define ISSRR1_PROTECT 0x08000000
! 140: #define ISSRR1_SEGMENT 0x00200000
! 141:
! 142: #ifdef _KERNEL
! 143: #ifndef _LOCORE
! 144: extern u_int dsisr(void);
! 145: extern vaddr_t dar(void);
! 146: #endif /* _KERNEL */
! 147: #endif /* _LOCORE */
! 148: #endif /* _POWERPC_PTE_H_ */
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