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/*-
* Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Berkeley Software Design Inc's name may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: BSDI: pmap.v9.h,v 1.10.2.6 1999/08/23 22:18:44 cp Exp
* $FreeBSD$
*/
#ifndef _MACHINE_TTE_H_
#define _MACHINE_TTE_H_
#define TTE_SHIFT (5)
#define TD_SIZE_SHIFT (61)
#define TD_SOFT2_SHIFT (50)
#define TD_DIAG_SHIFT (41)
#define TD_PA_SHIFT (13)
#define TD_SOFT_SHIFT (7)
#define TD_SIZE_BITS (2)
#define TD_SOFT2_BITS (9)
#define TD_DIAG_BITS (9)
#define TD_PA_CH_BITS (30)
#define TD_PA_SF_BITS (28)
#define TD_PA_BITS TD_PA_SF_BITS
#define TD_SOFT_BITS (6)
#define TD_SIZE_MASK ((1UL << TD_SIZE_BITS) - 1)
#define TD_SOFT2_MASK ((1UL << TD_SOFT2_BITS) - 1)
#define TD_DIAG_MASK ((1UL << TD_DIAG_BITS) - 1)
#define TD_PA_CH_MASK ((1UL << TD_PA_CH_BITS) - 1)
#define TD_PA_SF_MASK ((1UL << TD_PA_SF_BITS) - 1)
#define TD_PA_MASK ((1UL << TD_PA_BITS) - 1)
#define TD_SOFT_MASK ((1UL << TD_SOFT_BITS) - 1)
#define TS_8K (0UL)
#define TS_64K (1UL)
#define TS_512K (2UL)
#define TS_4M (3UL)
#define TS_MIN TS_8K
#define TS_MAX TS_4M
#define TD_V (1UL << 63)
#define TD_8K (TS_8K << TD_SIZE_SHIFT)
#define TD_64K (TS_64K << TD_SIZE_SHIFT)
#define TD_512K (TS_512K << TD_SIZE_SHIFT)
#define TD_4M (TS_4M << TD_SIZE_SHIFT)
#define TD_NFO (1UL << 60)
#define TD_IE (1UL << 59)
#define TD_PA(pa) ((pa) & (TD_PA_MASK << TD_PA_SHIFT))
/* NOTE: bit 6 of TD_SOFT will be sign-extended if used as an immediate. */
#define TD_FAKE ((1UL << 5) << TD_SOFT_SHIFT)
#define TD_EXEC ((1UL << 4) << TD_SOFT_SHIFT)
#define TD_REF ((1UL << 3) << TD_SOFT_SHIFT)
#define TD_PV ((1UL << 2) << TD_SOFT_SHIFT)
#define TD_SW ((1UL << 1) << TD_SOFT_SHIFT)
#define TD_WIRED ((1UL << 0) << TD_SOFT_SHIFT)
#define TD_L (1UL << 6)
#define TD_CP (1UL << 5)
#define TD_CV (1UL << 4)
#define TD_E (1UL << 3)
#define TD_P (1UL << 2)
#define TD_W (1UL << 1)
#define TD_G (1UL << 0)
#define TV_SIZE_BITS (TD_SIZE_BITS)
#define TV_VPN(va, sz) ((((va) >> TTE_PAGE_SHIFT(sz)) << TV_SIZE_BITS) | sz)
#define TTE_SIZE_SPREAD (3)
#define TTE_PAGE_SHIFT(sz) \
(PAGE_SHIFT + ((sz) * TTE_SIZE_SPREAD))
#define TTE_GET_SIZE(tp) \
(((tp)->tte_data >> TD_SIZE_SHIFT) & TD_SIZE_MASK)
#define TTE_GET_PAGE_SHIFT(tp) \
TTE_PAGE_SHIFT(TTE_GET_SIZE(tp))
#define TTE_GET_PAGE_SIZE(tp) \
(1 << TTE_GET_PAGE_SHIFT(tp))
#define TTE_GET_PAGE_MASK(tp) \
(TTE_GET_PAGE_SIZE(tp) - 1)
#define TTE_GET_PA(tp) \
((tp)->tte_data & (TD_PA_MASK << TD_PA_SHIFT))
#define TTE_GET_VPN(tp) \
((tp)->tte_vpn >> TV_SIZE_BITS)
#define TTE_GET_VA(tp) \
(TTE_GET_VPN(tp) << TTE_GET_PAGE_SHIFT(tp))
#define TTE_GET_PMAP(tp) \
(((tp)->tte_data & TD_P) != 0 ? \
(kernel_pmap) : \
(PHYS_TO_VM_PAGE(pmap_kextract((vm_offset_t)(tp)))->md.pmap))
#define TTE_ZERO(tp) \
memset(tp, 0, sizeof(*tp))
struct pmap;
struct tte {
u_long tte_vpn;
u_long tte_data;
TAILQ_ENTRY(tte) tte_link;
};
static __inline int
tte_match(struct tte *tp, vm_offset_t va)
{
return (((tp->tte_data & TD_V) != 0) &&
(tp->tte_vpn == TV_VPN(va, TTE_GET_SIZE(tp))));
}
#endif /* !_MACHINE_TTE_H_ */
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