/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Copyright (c) 1990 The University of Utah and * the Center for Software Science at the University of Utah (CSS). * All rights reserved. * * Permission to use, copy, modify and distribute this software is hereby * granted provided that (1) source code retains these copyright, permission, * and disclaimer notices, and (2) redistributions including binaries * reproduce the notices in supporting documentation, and (3) all advertising * materials mentioning features or use of this software display the following * acknowledgement: ``This product includes software developed by the Center * for Software Science at the University of Utah.'' * * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * CSS requests users of this software to return to css-dist@cs.utah.edu any * improvements that they make and grant CSS redistribution rights. * * Utah $Hdr: pmap.h 1.13 91/09/25$ * Author: Mike Hibler, Bob Wheeler, University of Utah CSS, 9/90 */ #ifndef _PPC_PMAP_H_ #define _PPC_PMAP_H_ #include #include #include #include #include #include struct pmap { queue_head_t pmap_link; /* MUST BE FIRST */ unsigned int pmapvr; /* Virtual to real conversion mask */ space_t space; /* space for this pmap */ #define BMAPLOCK 0x00000001 struct blokmap *bmaps; /* Physical pointer to odd-size page maps */ int ref_count; /* reference count */ unsigned int vflags; /* Alternate map validity flags */ #define pmapBatVal 0xFF000000 #define pmapBatDVal 0xF0000000 #define pmapBatIVal 0x0F000000 #define pmapFlags 0x00FF0000 #define pmapSubord 0x00800000 #define pmapAltSeg 0x0000FFFF unsigned int spaceNum; /* Space number */ /* PPC line boundary here - 020 */ unsigned int pmapSegs[16]; /* Contents of segment register if different than base space */ /* PPC line boundary here - 060 */ struct pmap *pmapPmaps[16]; /* Pointer to next lower level of pmaps */ /* PPC line boundary here - 0A0 */ /* Note: this must start on a word boundary */ unsigned short pmapUsage[128]; /* Count of pages mapped into 32mb (8192 page) slots */ #define pmapUsageShft 25 #define pmapUsageMask 0x0000007F #define pmapUsageSize (32*1024*1024) /* PPC line boundary here - 1A0 */ struct pmap_statistics stats; /* statistics */ decl_simple_lock_data(,lock) /* lock on map */ /* Need to pad out to a power of 2 - right now it is 512 bytes */ #define pmapSize 512 }; #define PMAP_NULL ((pmap_t) 0) extern pmap_t kernel_pmap; /* The kernel's map */ extern pmap_t cursor_pmap; /* The pmap to start allocations with */ #define PMAP_SWITCH_USER(th, map, my_cpu) th->map = map; #define PMAP_ACTIVATE(pmap, th, cpu) #define PMAP_DEACTIVATE(pmap, th, cpu) #define PMAP_CONTEXT(pmap,th) #define pmap_kernel_va(VA) \ (((VA) >= VM_MIN_KERNEL_ADDRESS) && ((VA) <= VM_MAX_KERNEL_ADDRESS)) #define PPC_SID_KERNEL 0 /* Must change KERNEL_SEG_REG0_VALUE if !0 */ #define SID_MAX ((1<<20) - 1) /* Space ID=20 bits, segment_id=SID + 4 bits */ #define pmap_kernel() (kernel_pmap) #define pmap_resident_count(pmap) ((pmap)->stats.resident_count) #define pmap_remove_attributes(pmap,start,end) #define pmap_copy(dpmap,spmap,da,len,sa) #define pmap_update() #define pmap_phys_address(x) ((x) << PPC_PGSHIFT) #define pmap_phys_to_frame(x) ((x) >> PPC_PGSHIFT) /* * prototypes. */ extern void ppc_protection_init(void); extern vm_offset_t phystokv(vm_offset_t pa); /* Get kernel virtual address from physical */ extern vm_offset_t kvtophys(vm_offset_t va); /* Get physical address from kernel virtual */ extern vm_offset_t pmap_map(vm_offset_t va, vm_offset_t spa, vm_offset_t epa, vm_prot_t prot); extern kern_return_t pmap_add_physical_memory(vm_offset_t spa, vm_offset_t epa, boolean_t available, unsigned int attr); extern vm_offset_t pmap_map_bd(vm_offset_t va, vm_offset_t spa, vm_offset_t epa, vm_prot_t prot); extern void pmap_bootstrap(unsigned int mem_size, vm_offset_t *first_avail, vm_offset_t *first_phys_avail, unsigned int kmapsize); extern void pmap_block_map(vm_offset_t pa, vm_size_t size, vm_prot_t prot, int entry, int dtlb); extern void pmap_switch(pmap_t); extern vm_offset_t pmap_extract(pmap_t pmap, vm_offset_t va); extern void pmap_remove_all(vm_offset_t pa); extern boolean_t pmap_verify_free(vm_offset_t pa); extern void sync_cache(vm_offset_t pa, unsigned length); extern void flush_dcache(vm_offset_t va, unsigned length, boolean_t phys); extern void invalidate_dcache(vm_offset_t va, unsigned length, boolean_t phys); extern void invalidate_icache(vm_offset_t va, unsigned length, boolean_t phys); extern void invalidate_cache_for_io(vm_offset_t va, unsigned length, boolean_t phys); extern void pmap_map_block(pmap_t pmap, vm_offset_t va, vm_offset_t pa, vm_size_t size, vm_prot_t prot, int attr, unsigned int flags); /* Map a block */ extern kern_return_t pmap_map_block_opt(vm_map_t map, vm_offset_t *va, vm_offset_t pa, vm_size_t size, vm_prot_t prot, int attr); /* Map a block allocating an optimal virtual address */ extern kern_return_t vm_map_block(vm_map_t map, vm_offset_t *va, vm_offset_t *bnd, vm_offset_t pa, vm_size_t size, vm_prot_t prot); extern kern_return_t pmap_nest(pmap_t grand, pmap_t subord, vm_offset_t vaddr, vm_size_t size); extern void pmap_ver(pmap_t pmap, vm_offset_t sva, vm_offset_t eva); #endif /* _PPC_PMAP_H_ */