f631b588f5
value of the tag or data field. Add macros for getting the page shift, size and mask for the physical page that a tte maps (which may be one of several sizes). Use the new cache functions for invalidating single pages.
120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/*-
|
|
* 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 (4)
|
|
|
|
#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_BITS (28)
|
|
#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_MASK ((1UL << TD_PA_BITS) - 1)
|
|
#define TD_SOFT_MASK ((1UL << TD_SOFT_BITS) - 1)
|
|
|
|
#define TD_SIZE_SPREAD (3)
|
|
|
|
#define TS_EXEC (1UL << 4)
|
|
#define TS_REF (1UL << 3)
|
|
#define TS_PV (1UL << 2)
|
|
#define TS_W (1UL << 1)
|
|
#define TS_WIRED (1UL << 0)
|
|
|
|
#define TD_V (1UL << 63)
|
|
#define TD_8K (0UL << TD_SIZE_SHIFT)
|
|
#define TD_64K (1UL << TD_SIZE_SHIFT)
|
|
#define TD_512K (2UL << TD_SIZE_SHIFT)
|
|
#define TD_4M (3UL << TD_SIZE_SHIFT)
|
|
#define TD_NFO (1UL << 60)
|
|
#define TD_IE (1UL << 59)
|
|
#define TD_PA(pa) ((pa) & (TD_PA_MASK << TD_PA_SHIFT))
|
|
#define TD_EXEC (TS_EXEC << TD_SOFT_SHIFT)
|
|
#define TD_REF (TS_REF << TD_SOFT_SHIFT)
|
|
#define TD_PV (TS_PV << TD_SOFT_SHIFT)
|
|
#define TD_SW (TS_W << TD_SOFT_SHIFT)
|
|
#define TD_WIRED (TS_WIRED << 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_VPN(va) ((va) >> PAGE_SHIFT)
|
|
|
|
#define TTE_GET_SIZE(tp) \
|
|
(((tp)->tte_data >> TD_SIZE_SHIFT) & TD_SIZE_MASK)
|
|
#define TTE_GET_PAGE_SHIFT(tp) \
|
|
(PAGE_SHIFT + (TTE_GET_SIZE(tp) * TD_SIZE_SPREAD))
|
|
#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_TLB(tp) \
|
|
(((tp)->tte_data & TD_EXEC) ? (TLB_DTLB | TLB_ITLB) : TLB_DTLB)
|
|
#define TTE_GET_VA(tp) \
|
|
((tp)->tte_vpn << PAGE_SHIFT)
|
|
|
|
struct tte {
|
|
u_long tte_vpn;
|
|
u_long tte_data;
|
|
};
|
|
|
|
static __inline int
|
|
tte_match_vpn(struct tte *tp, vm_offset_t vpn)
|
|
{
|
|
return ((tp->tte_data & TD_V) != 0 && tp->tte_vpn == vpn);
|
|
}
|
|
|
|
static __inline int
|
|
tte_match(struct tte *tp, vm_offset_t va)
|
|
{
|
|
return (tte_match_vpn(tp, va >> PAGE_SHIFT));
|
|
}
|
|
|
|
#endif /* !_MACHINE_TTE_H_ */
|