/* * 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 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_PTE_H #define _SYS_PTE_H #ifndef _ASM #include #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 xsoft:1; /* <3> sw - soft execute */ 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_soft_exec tte_bit.xsoft #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_SOFTEXEC_INT 0x00000008 #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_SOFTEXEC(ttep) ((ttep)->tte_soft_exec) #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_SOFTEXEC(ttep) ((ttep)->tte_soft_exec = 1) #define TTE_CLR_SOFTEXEC(ttep) ((ttep)->tte_soft_exec = 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 */