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255 lines
8.2 KiB
C
255 lines
8.2 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 (4)
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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_SOFT2_BITS (9)
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#define TD_DIAG_BITS (9)
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#define TD_PA_BITS (42)
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#define TD_SOFT_BITS (6)
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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 TTE8K (0UL)
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#define TTE64K (1UL)
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#define TTE512K (2UL)
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#define TTE4M (3UL)
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#define TTE32M (4UL)
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#define TTE256M (5UL)
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#define TTE2G (6UL)
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#define TTE16G (7UL)
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#define TD_PA(pa) ((pa) & (TD_PA_MASK << TD_PA_SHIFT))
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/* NOTE: bit 6 of TD_SOFT will be sign-extended if used as an immediate. */
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#define TD_FAKE ((1UL << 5) << TD_SOFT_SHIFT)
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#define TD_EXEC ((1UL << 4) << TD_SOFT_SHIFT)
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#define TD_REF ((1UL << 3) << TD_SOFT_SHIFT)
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#define TD_PV ((1UL << 2) << TD_SOFT_SHIFT)
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#define TD_SW ((1UL << 1) << TD_SOFT_SHIFT)
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#define TD_WIRED ((1UL << 0) << 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 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(tte_data) \
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(tte_data & (TD_PA_MASK << TD_PA_SHIFT))
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#define TTE_GET_VPN(tp) \
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((tp)->tte_vpn >> TV_SIZE_BITS)
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#define TTE_GET_VA(tp) \
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(TTE_GET_VPN(tp) << TTE_GET_PAGE_SHIFT(tp))
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#define TTE_GET_PMAP(tp) \
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(((tp)->tte_data & TD_P) != 0 ? \
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(kernel_pmap) : \
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(PHYS_TO_VM_PAGE(pmap_kextract((vm_offset_t)(tp)))->md.pmap))
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#define TTE_ZERO(tp) \
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memset(tp, 0, sizeof(*tp))
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struct pmap;
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#define PTE_SHIFT (3)
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#define PT_SHIFT (PAGE_SHIFT - PTE_SHIFT)
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#define VTD_SOFT_SHIFT (56)
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#define VTD_V (1UL << 63)
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#define VTD_NFO (1UL << 62)
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#define VTD_PA(pa) ((pa) & (TD_PA_MASK << TD_PA_SHIFT))
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#define VTD_IE (1UL << 12)
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#define VTD_E (1UL << 11)
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#define VTD_CP (1UL << 10)
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#define VTD_CV (1UL << 9)
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#define VTD_P (1UL << 8)
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#define VTD_X (1UL << 7)
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#define VTD_W (1UL << 6)
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#define VTD_REF (1UL << 5)
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#define VTD_SW_W (1UL << 4)
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#define VTD_MANAGED (1UL << 58)
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#define VTD_WIRED (1UL << 57)
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#define VTD_LOCK (1UL << 56)
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#define VTD_8K TTE8K
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#define VTD_64K TTE64K
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#define VTD_512K TTE512K
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#define VTD_4M TTE4M
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#define VTD_32M TTE32M
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#define VTD_256M TTE256M
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/*
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* sparc64 compatibility for the loader
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*/
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#define TD_SIZE_SHIFT (61)
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#define TS_4M (3UL)
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#define TD_V (1UL << 63)
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#define TD_4M (TS_4M << TD_SIZE_SHIFT)
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/*
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* default flags for kernel pages
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*/
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#define TTE_KERNEL VTD_V | VTD_CP | VTD_CV | VTD_P | VTD_X | VTD_W | VTD_SW_W | VTD_REF | VTD_WIRED
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#define TTE_KERNEL_MINFLAGS VTD_P
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#define TTE_MINFLAGS VTD_V | VTD_CP | VTD_CV
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#define VTD_SIZE_BITS (4)
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#define VTD_SIZE_MASK ((1 << VTD_SIZE_BITS) - 1)
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#define TTE_SIZE_SPREAD (3)
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#define TTE_PAGE_SHIFT(sz) \
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(PAGE_SHIFT + ((sz) * TTE_SIZE_SPREAD))
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#define TTE_GET_SIZE(tte_data) \
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(tte_data & VTD_SIZE_MASK)
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#define TTE_GET_PAGE_SHIFT(tte_data) \
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TTE_PAGE_SHIFT(TTE_GET_SIZE(tte_data))
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#ifdef notyet
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typedef union {
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struct tte {
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unsigned int v:1; /* <63> valid */
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unsigned int nfo:1; /* <62> non-fault only */
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unsigned int sw:3; /* <61:59> sw */
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unsigned int managed:1; /* <58> managed */
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unsigned int wired:1; /* <57> wired */
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unsigned int lock:1; /* <56> sw - locked */
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unsigned long pa:43; /* <55:13> pa */
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unsigned int ie:1; /* <12> 1=invert endianness */
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unsigned int e:1; /* <11> side effect */
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unsigned int cp:1; /* <10> physically cache */
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unsigned int cv:1; /* <9> virtually cache */
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unsigned int p:1; /* <8> privilege required */
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unsigned int x:1; /* <7> execute perm */
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unsigned int w:1; /* <6> write perm */
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unsigned int ref:1; /* <5> sw - ref */
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unsigned int wr_perm:1; /* <4> sw - write perm */
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unsigned int rsvd:1; /* <3> reserved */
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unsigned int sz:3; /* <2:0> pagesize */
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} tte_bit;
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uint64_t ll;
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} tte_t;
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#endif
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#define tte_val tte_bit.v /* use < 0 check in asm */
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#define tte_size tte_bit.sz
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#define tte_nfo tte_bit.nfo
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#define tte_ie tte_bit.ie
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#define tte_wired tte_bit.wired
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#define tte_pa tte_bit.pa
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#define tte_ref tte_bit.ref
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#define tte_wr_perm tte_bit.wr_perm
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#define tte_exec_perm tte_bit.x
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#define tte_lock tte_bit.lock
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#define tte_cp tte_bit.cp
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#define tte_cv tte_bit.cv
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#define tte_se tte_bit.e
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#define tte_priv tte_bit.p
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#define tte_hwwr tte_bit.w
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#define TTE_IS_VALID(ttep) ((ttep)->tte_inthi < 0)
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#define TTE_SET_INVALID(ttep) ((ttep)->tte_val = 0)
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#define TTE_IS_8K(ttep) (TTE_CSZ(ttep) == TTE8K)
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#define TTE_IS_WIRED(ttep) ((ttep)->tte_wired)
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#define TTE_IS_WRITABLE(ttep) ((ttep)->tte_wr_perm)
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#define TTE_IS_EXECUTABLE(ttep) ((ttep)->tte_exec_perm)
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#define TTE_IS_PRIVILEGED(ttep) ((ttep)->tte_priv)
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#define TTE_IS_NOSYNC(ttep) ((ttep)->tte_no_sync)
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#define TTE_IS_LOCKED(ttep) ((ttep)->tte_lock)
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#define TTE_IS_SIDEFFECT(ttep) ((ttep)->tte_se)
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#define TTE_IS_NFO(ttep) ((ttep)->tte_nfo)
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#define TTE_IS_REF(ttep) ((ttep)->tte_ref)
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#define TTE_IS_MOD(ttep) ((ttep)->tte_hwwr)
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#define TTE_IS_IE(ttep) ((ttep)->tte_ie)
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#define TTE_SET_SUSPEND(ttep) ((ttep)->tte_suspend = 1)
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#define TTE_CLR_SUSPEND(ttep) ((ttep)->tte_suspend = 0)
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#define TTE_IS_SUSPEND(ttep) ((ttep)->tte_suspend)
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#define TTE_SET_REF(ttep) ((ttep)->tte_ref = 1)
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#define TTE_CLR_REF(ttep) ((ttep)->tte_ref = 0)
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#define TTE_SET_LOCKED(ttep) ((ttep)->tte_lock = 1)
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#define TTE_CLR_LOCKED(ttep) ((ttep)->tte_lock = 0)
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#define TTE_SET_MOD(ttep) ((ttep)->tte_hwwr = 1)
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#define TTE_CLR_MOD(ttep) ((ttep)->tte_hwwr = 0)
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#define TTE_SET_RM(ttep) \
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(((ttep)->tte_intlo) = \
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(ttep)->tte_intlo | TTE_HWWR_INT | TTE_REF_INT)
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#define TTE_CLR_RM(ttep) \
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(((ttep)->tte_intlo) = \
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(ttep)->tte_intlo & ~(TTE_HWWR_INT | TTE_REF_INT))
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#define TTE_SET_WRT(ttep) ((ttep)->tte_wr_perm = 1)
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#define TTE_CLR_WRT(ttep) ((ttep)->tte_wr_perm = 0)
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#define TTE_SET_EXEC(ttep) ((ttep)->tte_exec_perm = 1)
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#define TTE_CLR_EXEC(ttep) ((ttep)->tte_exec_perm = 0)
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#define TTE_SET_PRIV(ttep) ((ttep)->tte_priv = 1)
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#define TTE_CLR_PRIV(ttep) ((ttep)->tte_priv = 0)
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#define TTE_BSZS_SHIFT(sz) ((sz) * 3)
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struct pmap;
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void tte_clear_phys_bit(vm_page_t m, uint64_t flags);
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void tte_set_phys_bit(vm_page_t m, uint64_t flags);
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boolean_t tte_get_phys_bit(vm_page_t m, uint64_t flags);
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void tte_clear_virt_bit(struct pmap *pmap, vm_offset_t va, uint64_t flags);
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void tte_set_virt_bit(struct pmap *pmap, vm_offset_t va, uint64_t flags);
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boolean_t tte_get_virt_bit(struct pmap *pmap, vm_offset_t va, uint64_t flags);
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#endif /* !_MACHINE_TTE_H_ */
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