124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/*-
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* Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Berkeley Software Design Inc's name may not be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: BSDI: pmap.v9.h,v 1.10.2.6 1999/08/23 22:18:44 cp Exp
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* $FreeBSD$
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*/
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#ifndef _MACHINE_TTE_H_
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#define _MACHINE_TTE_H_
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#define TTE_SHIFT (5)
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#define TD_SIZE_SHIFT (61)
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#define TD_SOFT2_SHIFT (50)
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#define TD_DIAG_SHIFT (41)
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#define TD_PA_SHIFT (13)
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#define TD_SOFT_SHIFT (7)
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#define TD_SIZE_BITS (2)
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#define TD_SOFT2_BITS (9)
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#define TD_DIAG_BITS (9)
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#define TD_PA_BITS (28)
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#define TD_SOFT_BITS (6)
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#define TD_SIZE_MASK ((1UL << TD_SIZE_BITS) - 1)
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#define TD_SOFT2_MASK ((1UL << TD_SOFT2_BITS) - 1)
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#define TD_DIAG_MASK ((1UL << TD_DIAG_BITS) - 1)
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#define TD_PA_MASK ((1UL << TD_PA_BITS) - 1)
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#define TD_SOFT_MASK ((1UL << TD_SOFT_BITS) - 1)
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#define TD_SIZE_SPREAD (3)
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#define TS_EXEC (1UL << 4)
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#define TS_REF (1UL << 3)
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#define TS_PV (1UL << 2)
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#define TS_W (1UL << 1)
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#define TS_WIRED (1UL << 0)
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#define TD_V (1UL << 63)
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#define TD_8K (0UL << TD_SIZE_SHIFT)
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#define TD_64K (1UL << TD_SIZE_SHIFT)
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#define TD_512K (2UL << TD_SIZE_SHIFT)
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#define TD_4M (3UL << TD_SIZE_SHIFT)
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#define TD_NFO (1UL << 60)
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#define TD_IE (1UL << 59)
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#define TD_PA(pa) ((pa) & (TD_PA_MASK << TD_PA_SHIFT))
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#define TD_EXEC (TS_EXEC << TD_SOFT_SHIFT)
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#define TD_REF (TS_REF << TD_SOFT_SHIFT)
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#define TD_PV (TS_PV << TD_SOFT_SHIFT)
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#define TD_SW (TS_W << TD_SOFT_SHIFT)
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#define TD_WIRED (TS_WIRED << TD_SOFT_SHIFT)
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#define TD_L (1UL << 6)
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#define TD_CP (1UL << 5)
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#define TD_CV (1UL << 4)
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#define TD_E (1UL << 3)
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#define TD_P (1UL << 2)
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#define TD_W (1UL << 1)
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#define TD_G (1UL << 0)
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#define TV_VPN(va) ((va) >> PAGE_SHIFT)
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#define TTE_GET_SIZE(tp) \
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(((tp)->tte_data >> TD_SIZE_SHIFT) & TD_SIZE_MASK)
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#define TTE_GET_PAGE_SHIFT(tp) \
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(PAGE_SHIFT + (TTE_GET_SIZE(tp) * TD_SIZE_SPREAD))
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#define TTE_GET_PAGE_SIZE(tp) \
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(1 << TTE_GET_PAGE_SHIFT(tp))
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#define TTE_GET_PAGE_MASK(tp) \
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(TTE_GET_PAGE_SIZE(tp) - 1)
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#define TTE_GET_PA(tp) \
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((tp)->tte_data & (TD_PA_MASK << TD_PA_SHIFT))
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#define TTE_GET_VA(tp) \
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((tp)->tte_vpn << PAGE_SHIFT)
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#define TTE_GET_PMAP(tp) \
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((tp)->tte_pmap)
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#define TTE_ZERO(tp) \
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bzero(tp, sizeof(*tp))
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struct tte {
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u_long tte_vpn;
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u_long tte_data;
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STAILQ_ENTRY(tte) tte_link;
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struct pmap *tte_pmap;
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};
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static __inline int
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tte_match_vpn(struct tte *tp, vm_offset_t vpn)
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{
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return ((tp->tte_data & TD_V) != 0 && tp->tte_vpn == vpn);
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}
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static __inline int
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tte_match(struct tte *tp, vm_offset_t va)
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{
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return (tte_match_vpn(tp, va >> PAGE_SHIFT));
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}
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#endif /* !_MACHINE_TTE_H_ */
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