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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_PTE_H
#define _SYS_PTE_H
#ifndef _ASM
#include <sys/types.h>
#endif /* _ASM */
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _ASM
/*
* The tte struct is a 64 bit data type. Since we currently plan to
* use a V8 compiler all manipulations in C will be done using the bit fields
* or as 2 integers. In assembly code we will deal with it as a double (using
* ldx and stx). The structure is defined to force a double alignment.
*/
typedef union {
struct tte {
unsigned int v:1; /* <63> valid */
unsigned int nfo:1; /* <62> non-fault only */
unsigned int hmenum:3; /* <61:59> sw hmenum */
unsigned int no_sync:1; /* <58> sw - ghost unload */
unsigned int lock:1; /* <57> sw - locked */
unsigned int susp:1; /* <56> sw - suspend? */
unsigned int pahi:24; /* <55:32> pa */
/* ------------------- */
unsigned int palo:19; /* <31:13> pa */
unsigned int ie:1; /* <12> 1=invert endianness */
unsigned int e:1; /* <11> side effect */
unsigned int cp:1; /* <10> physically cache */
unsigned int cv:1; /* <9> virtually cache */
unsigned int p:1; /* <8> privilege required */
unsigned int x:1; /* <7> execute perm */
unsigned int w:1; /* <6> write perm */
unsigned int ref:1; /* <5> sw - ref */
unsigned int wr_perm:1; /* <4> sw - write perm */
unsigned int rsvd:1; /* <3> reserved */
unsigned int sz:3; /* <2:0> pagesize */
} tte_bit;
struct {
int32_t inthi;
uint32_t intlo;
} tte_int;
uint64_t ll;
} tte_t;
#define tte_val tte_bit.v /* use < 0 check in asm */
#define tte_size tte_bit.sz
#define tte_nfo tte_bit.nfo
#define tte_ie tte_bit.ie /* XXX? */
#define tte_hmenum tte_bit.hmenum
#define tte_pahi tte_bit.pahi
#define tte_palo tte_bit.palo
#define tte_ref tte_bit.ref
#define tte_wr_perm tte_bit.wr_perm
#define tte_no_sync tte_bit.no_sync
#define tte_suspend tte_bit.susp
#define tte_exec_perm tte_bit.x
#define tte_lock tte_bit.lock
#define tte_cp tte_bit.cp
#define tte_cv tte_bit.cv
#define tte_se tte_bit.e
#define tte_priv tte_bit.p
#define tte_hwwr tte_bit.w
#define tte_inthi tte_int.inthi
#define tte_intlo tte_int.intlo
#endif /* !_ASM */
/* Defines for sz field in tte */
#define TTE8K 0x0
#define TTE64K 0x1
#define TTE512K 0x2
#define TTE4M 0x3
#define TTE32M 0x4
#define TTE256M 0x5
#define TTE2G 0x6
#define TTE16G 0x7
#define TTE_SZ_SHFT 0
#define TTE_SZ_BITS 0x7
#define TTE_CSZ(ttep) ((ttep)->tte_size)
#define TTE_BSZS_SHIFT(sz) ((sz) * 3)
#define TTEBYTES(sz) (MMU_PAGESIZE << TTE_BSZS_SHIFT(sz))
#define TTEPAGES(sz) (1 << TTE_BSZS_SHIFT(sz))
#define TTE_PAGE_SHIFT(sz) (MMU_PAGESHIFT + TTE_BSZS_SHIFT(sz))
#define TTE_PAGE_OFFSET(sz) (TTEBYTES(sz) - 1)
#define TTE_PAGEMASK(sz) (~TTE_PAGE_OFFSET(sz))
#define TTE_PFNMASK(sz) (~(TTE_PAGE_OFFSET(sz) >> MMU_PAGESHIFT))
#define TTE_PA_LSHIFT 8 /* used to do sllx on tte to get pa */
#ifndef _ASM
#define TTE_PASHIFT 19 /* used to manage pahi and palo */
#define TTE_PALOMASK ((1 << TTE_PASHIFT) -1)
/* PFN is defined as bits [40-13] of the physical address */
#define TTE_TO_TTEPFN(ttep) \
((((ttep)->tte_pahi << TTE_PASHIFT) | (ttep)->tte_palo) & \
TTE_PFNMASK(TTE_CSZ(ttep)))
/*
* This define adds the vaddr page offset to obtain a correct pfn
*/
#define TTE_TO_PFN(vaddr, ttep) \
(sfmmu_ttetopfn(ttep, vaddr))
#define PFN_TO_TTE(entry, pfn) { \
entry.tte_pahi = pfn >> TTE_PASHIFT; \
entry.tte_palo = pfn & TTE_PALOMASK; \
}
#endif /* !_ASM */
/*
* The tte defines are separated into integers because the compiler doesn't
* support 64bit defines.
*/
/* Defines for tte using inthi */
#define TTE_VALID_INT 0x80000000
#define TTE_NFO_INT 0x40000000
#define TTE_NOSYNC_INT 0x04000000
#define TTE_SUSPEND 0x01000000
#define TTE_SUSPEND_SHIFT 32
/* Defines for tte using intlo */
#define TTE_IE_INT 0x00001000
#define TTE_SIDEFF_INT 0x00000800
#define TTE_CP_INT 0x00000400
#define TTE_CV_INT 0x00000200
#define TTE_PRIV_INT 0x00000100
#define TTE_EXECPRM_INT 0x00000080
#define TTE_HWWR_INT 0x00000040
#define TTE_REF_INT 0x00000020
#define TTE_WRPRM_INT 0x00000010
#define TTE_PROT_INT (TTE_WRPRM_INT | TTE_PRIV_INT)
#ifndef ASM
/* Defines to help build ttes using inthi */
#define TTE_SZ_INTLO(sz) ((sz) & TTE_SZ_BITS)
#define TTE_HMENUM_INT(hmenum) ((hmenum) << 27)
/* PFN is defined as bits [40-13] of the physical address */
#define TTE_PFN_INTHI(pfn) ((pfn) >> TTE_PASHIFT)
#define TTE_VALID_CHECK(attr) \
(((attr) & PROT_ALL) ? TTE_VALID_INT : 0)
#define TTE_NFO_CHECK(attr) \
(((attr) & HAT_NOFAULT) ? TTE_NFO_INT : 0)
/* Defines to help build ttes using intlo */
#define TTE_PFN_INTLO(pfn) (((pfn) & TTE_PALOMASK) << 13)
#define TTE_IE_CHECK(attr) \
(((attr) & HAT_STRUCTURE_LE) ? TTE_IE_INT : 0)
#define TTE_WRPRM_CHECK(attr) \
(((attr) & PROT_WRITE) ? TTE_WRPRM_INT : 0)
#define TTE_EXECPRM_CHECK(attr) \
(((attr) & PROT_EXEC) ? TTE_EXECPRM_INT : 0)
#define TTE_NOSYNC_CHECK(attr) \
(((attr) & HAT_NOSYNC) ? TTE_NOSYNC_INT : 0)
#define TTE_CP_CHECK(attr) \
(((attr) & SFMMU_UNCACHEPTTE) ? 0: TTE_CP_INT)
#define TTE_CV_CHECK(attr) \
(((attr) & SFMMU_UNCACHEVTTE) ? 0: TTE_CV_INT)
#define TTE_SE_CHECK(attr) \
(((attr) & SFMMU_SIDEFFECT) ? TTE_SIDEFF_INT : 0)
#define TTE_PRIV_CHECK(attr) \
(((attr) & PROT_USER) ? 0 : TTE_PRIV_INT)
#define MAKE_TTEATTR_INTHI(attr) \
(TTE_VALID_CHECK(attr) | TTE_NFO_CHECK(attr))
#define MAKE_TTE_INTHI(pfn, attr, sz, hmenum) \
(MAKE_TTEATTR_INTHI(attr) | TTE_HMENUM_INT(hmenum) | \
TTE_NOSYNC_CHECK(attr) | TTE_PFN_INTHI(pfn))
#define MAKE_TTEATTR_INTLO(attr) \
(TTE_WRPRM_CHECK(attr) | TTE_CP_CHECK(attr) | TTE_CV_CHECK(attr) | \
TTE_SE_CHECK(attr) | TTE_PRIV_CHECK(attr) | TTE_EXECPRM_CHECK(attr) | \
TTE_IE_CHECK(attr))
#define MAKE_TTE_INTLO(pfn, attr, sz, hmenum) \
(TTE_PFN_INTLO(pfn) | TTE_REF_INT | MAKE_TTEATTR_INTLO(attr) | \
TTE_SZ_INTLO(sz))
#define TTEINTHI_ATTR (TTE_VALID_INT | TTE_NFO_INT | TTE_NOSYNC_INT)
#define TTEINTLO_ATTR \
(TTE_IE_INT | TTE_WRPRM_INT | TTE_CP_INT | TTE_CV_INT | \
TTE_SIDEFF_INT | TTE_PRIV_INT | TTE_EXECPRM_INT)
#define MAKE_TTE_MASK(ttep) \
{ \
(ttep)->tte_bit.v = 1; \
(ttep)->tte_bit.nfo = 1; \
(ttep)->tte_bit.pahi = 0xffffff; \
(ttep)->tte_bit.palo = 0x7ffff; \
(ttep)->tte_bit.ie = 1; \
(ttep)->tte_bit.e = 1; \
(ttep)->tte_bit.cp = 1; \
(ttep)->tte_bit.cv = 1; \
(ttep)->tte_bit.p = 1; \
(ttep)->tte_bit.x = 1; \
(ttep)->tte_bit.w = 1; \
(ttep)->tte_bit.sz = 7; \
}
/*
* Defines to check/set TTE bits.
*/
#define TTE_IS_VALID(ttep) ((ttep)->tte_inthi < 0)
#define TTE_SET_INVALID(ttep) ((ttep)->tte_val = 0)
#define TTE_IS_8K(ttep) (TTE_CSZ(ttep) == TTE8K)
#define TTE_IS_WRITABLE(ttep) ((ttep)->tte_wr_perm)
#define TTE_IS_EXECUTABLE(ttep) ((ttep)->tte_exec_perm)
#define TTE_IS_PRIVILEGED(ttep) ((ttep)->tte_priv)
#define TTE_IS_NOSYNC(ttep) ((ttep)->tte_no_sync)
#define TTE_IS_LOCKED(ttep) ((ttep)->tte_lock)
#define TTE_IS_SIDEFFECT(ttep) ((ttep)->tte_se)
#define TTE_IS_NFO(ttep) ((ttep)->tte_nfo)
#define TTE_IS_REF(ttep) ((ttep)->tte_ref)
#define TTE_IS_MOD(ttep) ((ttep)->tte_hwwr)
#define TTE_IS_IE(ttep) ((ttep)->tte_ie)
#define TTE_SET_SUSPEND(ttep) ((ttep)->tte_suspend = 1)
#define TTE_CLR_SUSPEND(ttep) ((ttep)->tte_suspend = 0)
#define TTE_IS_SUSPEND(ttep) ((ttep)->tte_suspend)
#define TTE_SET_REF(ttep) ((ttep)->tte_ref = 1)
#define TTE_CLR_REF(ttep) ((ttep)->tte_ref = 0)
#define TTE_SET_LOCKED(ttep) ((ttep)->tte_lock = 1)
#define TTE_CLR_LOCKED(ttep) ((ttep)->tte_lock = 0)
#define TTE_SET_MOD(ttep) ((ttep)->tte_hwwr = 1)
#define TTE_CLR_MOD(ttep) ((ttep)->tte_hwwr = 0)
#define TTE_SET_RM(ttep) \
(((ttep)->tte_intlo) = \
(ttep)->tte_intlo | TTE_HWWR_INT | TTE_REF_INT)
#define TTE_CLR_RM(ttep) \
(((ttep)->tte_intlo) = \
(ttep)->tte_intlo & ~(TTE_HWWR_INT | TTE_REF_INT))
#define TTE_SET_WRT(ttep) ((ttep)->tte_wr_perm = 1)
#define TTE_CLR_WRT(ttep) ((ttep)->tte_wr_perm = 0)
#define TTE_SET_EXEC(ttep) ((ttep)->tte_exec_perm = 1)
#define TTE_CLR_EXEC(ttep) ((ttep)->tte_exec_perm = 0)
#define TTE_SET_PRIV(ttep) ((ttep)->tte_priv = 1)
#define TTE_CLR_PRIV(ttep) ((ttep)->tte_priv = 0)
#define TTE_IS_VCACHEABLE(ttep) ((ttep)->tte_cv)
#define TTE_SET_VCACHEABLE(ttep) ((ttep)->tte_cv = 1)
#define TTE_CLR_VCACHEABLE(ttep) ((ttep)->tte_cv = 0)
#define TTE_IS_PCACHEABLE(ttep) ((ttep)->tte_cp)
#define TTE_SET_PCACHEABLE(ttep) ((ttep)->tte_cp = 1)
#define TTE_CLR_PCACHEABLE(ttep) ((ttep)->tte_cp = 0)
#define KPM_TTE_VCACHED(tte64, pfn, tte_sz) \
tte64 = ((uint64_t)TTE_VALID_INT << 32) | \
((uint64_t)((tte_sz) << TTE_SZ_SHFT)) | \
(((pfn) >> TTE_BSZS_SHIFT(tte_sz)) << \
(TTE_BSZS_SHIFT(tte_sz) + MMU_PAGESHIFT)) | \
(TTE_CP_INT | TTE_CV_INT | TTE_PRIV_INT | TTE_HWWR_INT)
#define KPM_TTE_VUNCACHED(tte64, pfn, tte_sz) \
tte64 = ((uint64_t)TTE_VALID_INT << 32) | \
((uint64_t)((tte_sz) << TTE_SZ_SHFT)) | \
(((pfn) >> TTE_BSZS_SHIFT(tte_sz)) << \
(TTE_BSZS_SHIFT(tte_sz) + MMU_PAGESHIFT)) | \
(TTE_CP_INT | TTE_PRIV_INT | TTE_HWWR_INT)
/*
* This define provides a generic method to set and clear multiple tte flags.
* A bitmask of all flags to be affected is passed in "flags" and a bitmask
* of the new values is passed in "newflags".
*/
#define TTE_SET_LOFLAGS(ttep, flags, newflags) \
((ttep)->tte_intlo = ((ttep)->tte_intlo & ~(flags)) | (newflags))
#define TTE_GET_LOFLAGS(ttep, flags) ((ttep)->tte_intlo & flags)
#endif /* !_ASM */
#ifdef __cplusplus
}
#endif
#endif /* !_SYS_PTE_H */
|
