[apple/xnu.git] / osfmk / ppc / pmap.h

/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The 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, QUIET ENJOYMENT 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 <mach/vm_types.h>
#include <mach/machine/vm_types.h>
#include <mach/vm_prot.h>
#include <mach/vm_statistics.h>
#include <kern/queue.h>
#include <vm/pmap.h>
#include <ppc/mappings.h>

#define maxPPage32 0x000FFFFF			/* Maximum page number in 32-bit machines */

typedef uint32_t shexlock;

#pragma pack(4)							/* Make sure the structure stays as we defined it */

struct sgc {
	uint64_t	sgcESID;				/* ESID portion of segment cache */
#define sgcESmsk	0xFFFFFFFFF0000000ULL	/* ESID portion of segment register cache */
	uint64_t	sgcVSID;				/* VSID portion of segment cache */
#define sgcVSmsk	0xFFFFFFFFFFFFF000ULL	/* VSID mask */
#define sgcVSKeys	0x0000000000000C00ULL	/* Protection keys */
#define sgcVSKeyUsr	53					/* User protection key */
#define sgcVSNoEx	0x0000000000000200ULL	/* No execute */
};
#pragma pack()

typedef struct sgc sgc;

#pragma pack(4)							/* Make sure the structure stays as we defined it */
struct pmap_vmm_stats {
	unsigned int	vxsGpf;				/* Guest faults */
	unsigned int	vxsGpfMiss;			/* Faults that miss in hash table */
	
	unsigned int	vxsGrm;				/* Guest mapping remove requests */
	unsigned int	vxsGrmMiss;			/* Remove misses in hash table */
	unsigned int	vxsGrmActive;		/* Remove hits that are active */
	
	unsigned int	vxsGra;				/* Guest remove all mappings requests */
	unsigned int	vxsGraHits;			/* Remove hits in hash table */
	unsigned int	vxsGraActive;		/* Remove hits that are active */
	
	unsigned int	vxsGrl;				/* Guest remove local mappings requests */
	unsigned int	vxsGrlActive;		/* Active mappings removed */

	unsigned int	vxsGrs;				/* Guest mapping resumes */
	unsigned int	vxsGrsHitAct;		/* Resume hits active entry */
	unsigned int	vxsGrsHitSusp;		/* Resume hits suspended entry */
	unsigned int	vxsGrsMissGV;		/* Resume misses on guest virtual */
	unsigned int	vxsGrsHitPE;		/* Resume hits on host virtual */
	unsigned int	vxsGrsMissPE;		/* Resume misses on host virtual */

	unsigned int	vxsGad;				/* Guest mapping adds */
	unsigned int	vxsGadHit;			/* Add hits entry (active or dormant) */
	unsigned int	vxsGadFree;			/* Add takes free entry in group */
	unsigned int	vxsGadDormant;		/* Add steals dormant entry in group */
	unsigned int	vxsGadSteal;		/* Add steals active entry in group */
	
	unsigned int	vxsGsu;				/* Guest mapping suspends */
	unsigned int	vxsGsuHit;			/* Suspend hits entry (active only) */
	unsigned int	vxsGsuMiss;			/* Suspend misses entry */
	
	unsigned int	vxsGtd;				/* Guest test ref&chg */
	unsigned int	vxsGtdHit;			/* Test r&c hits entry (active only) */
	unsigned int	vxsGtdMiss;			/* Test r&c misses entry */
};
#pragma pack()
typedef struct pmap_vmm_stats pmap_vmm_stats;

/* Not wanting to tax all of our customers for the sins of those that use virtual operating
   systems, we've built the hash table from its own primitive virtual memory. We first
   allocate a pmap_vmm_ext with sufficient space following to accomodate the hash table 
   index (one 64-bit physical address per 4k-byte page of hash table). The allocation 
   must not cross a 4k-byte page boundary (we'll be accessing the block with relocation
   off), so we'll try a couple of times, then just burn a whole page. We stuff the effective
   address of the cache-aligned index into hIdxBase; the physical-mode code locates the index
   by adding the size of a pmap_vmm_extension to its translated physical address, then rounding
   up to the next 32-byte boundary. Now we grab enough virtual pages to contain the hash table,
   and fill in the index with the page's physical addresses. For the final touch that's sure
   to please, we initialize the hash table. Mmmmm, golden brown perfection.
 */

#pragma pack(4)
struct pmap_vmm_ext {
	addr64_t		vmxSalt;			/* This block's virt<->real conversion salt */
	addr64_t		vmxHostPmapPhys;	/* Host pmap physical address */
	struct pmap		*vmxHostPmap;		/* Host pmap effective address */
	addr64_t		*vmxHashPgIdx;		/* Hash table physical index base address */
	vm_offset_t		*vmxHashPgList;		/* List of virtual pages comprising the hash table */
	unsigned int	*vmxActiveBitmap;	/* Bitmap of active mappings in hash table */
	pmap_vmm_stats	vmxStats;			/* Stats for VMM assists */
#define VMX_HPIDX_OFFSET ((sizeof(pmap_vmm_ext) + 127) & ~127)
										/* The hash table physical index begins at the first
										   128-byte boundary after the pmap_vmm_ext struct */
#define VMX_HPLIST_OFFSET (VMX_HPIDX_OFFSET + (GV_HPAGES * sizeof(addr64_t)))
#define VMX_ACTMAP_OFFSET (VMX_HPLIST_OFFSET + (GV_HPAGES * sizeof(vm_offset_t)))
};
#pragma pack()
typedef struct pmap_vmm_ext pmap_vmm_ext;

#pragma pack(4)							/* Make sure the structure stays as we defined it */
struct pmap {
	queue_head_t	pmap_link;			/* MUST BE FIRST */
	addr64_t		pmapvr;				/* Virtual to real conversion mask */
	shexlock		pmapSXlk;			/* Shared/Exclusive lock for mapping changes */
	unsigned int	space;				/* space for this pmap */
#define invalSpace 0x00000001			/* Predefined always invalid space */
	int				ref_count;			/* reference count */
	unsigned int	pmapFlags;			/* Flags */
#define pmapKeys	0x00000007			/* Keys and no execute bit to use with this pmap */
#define pmapKeyDef	0x00000006			/* Default keys - Sup = 1, user = 1, no ex = 0 */
#define pmapVMhost	0x00000010			/* pmap with Virtual Machines attached to it */
#define pmapVMgsaa	0x00000020			/* Guest shadow assist active */
	unsigned int	spaceNum;			/* Space number */
	unsigned int	pmapCCtl;			/* Cache control */
#define pmapCCtlVal	0xFFFF0000			/* Valid entries */
#define pmapCCtlLck	0x00008000			/* Lock bit */
#define pmapCCtlLckb	16				/* Lock bit */
#define pmapCCtlGen	0x00007FFF			/* Generation number */

#define pmapSegCacheCnt 16				/* Maximum number of cache entries */
#define pmapSegCacheUse	16				/* Number of cache entries to use */

	struct pmap		*freepmap;			/* Free pmaps */
	pmap_vmm_ext   *pmapVmmExt;			/* VMM extension block, for VMM host and guest pmaps */
	addr64_t		pmapVmmExtPhys;		/* VMM extension block physical address */
/*											0x038 */
	uint64_t		pmapSCSubTag;		/* Segment cache sub-tags. This is a 16 entry 4 bit array */
/*											0x040 */
	sgc			pmapSegCache[pmapSegCacheCnt];	/* SLD values cached for quick load */

/*											0x140 */	
/* if fanout is 4, then shift is 1, if fanout is 8 shift is 2, etc */
#define	kSkipListFanoutShift	1
/* with n lists, we can handle (fanout**n) pages optimally */
#define	kSkipListMaxLists		12    
    unsigned char	pmapCurLists;		/*  0x140 - max #lists any mapping in this pmap currently has */
    unsigned char	pmapRsv2[3];
    uint32_t		pmapRandNum;		/* 0x144 - used by mapSetLists() as a random number generator */
    addr64_t		pmapSkipLists[kSkipListMaxLists];	/* 0x148 - the list headers */
/* following statistics conditionally gathered */
    uint64_t		pmapSearchVisits;	/* 0x1A8 - nodes visited searching pmaps */
    uint32_t		pmapSearchCnt;		/* 0x1B0 - number of calls to mapSearch or mapSearchFull */

	unsigned int	pmapRsv3[3];

/*											0x1C0 */	

	struct pmap_statistics	stats;		/* statistics */
	
/* Need to pad out to a power of 2 - right now it is 512 bytes */
#define pmapSize 512
};
#pragma pack()

#pragma pack(4)
struct pmapTransTab {
	addr64_t		pmapPAddr;			/* Physcial address of pmap */
	unsigned int	pmapVAddr;			/* Virtual address of pmap */
};
#pragma pack()							/* Make sure the structure stays as we defined it */

typedef struct pmapTransTab pmapTransTab;

/*
 *	Address Chunk IDentified Table
 */
 
struct acidTabEnt {
	unsigned int	acidVAddr;			/* Virtual address of pmap or pointer to next free entry */
	unsigned int	acidGas;			/* reserved */
	addr64_t		acidPAddr;			/* Physcial address of pmap */
};

typedef struct acidTabEnt acidTabEnt;

extern acidTabEnt *acidTab;				/* Pointer to acid table */
extern acidTabEnt *acidFree;			/* List of free acid entries */

#define PMAP_NULL  ((pmap_t) 0)

extern pmap_t	cursor_pmap;			/* The pmap to start allocations with */
extern pmap_t	sharedPmap;
extern unsigned int sharedPage;
extern int ppc_max_adrsp;				/* Maximum number of concurrent address spaces allowed. */	
extern addr64_t vm_max_address;			/* Maximum effective address supported */
extern addr64_t vm_max_physical;		/* Maximum physical address supported */
extern pmapTransTab *pmapTrans;			/* Space to pmap translate table */
#define	PMAP_SWITCH_USER(th, map, my_cpu) th->map = map;	

#define PMAP_CONTEXT(pmap,th)

#define pmap_kernel_va(VA)	\
	(((VA) >= VM_MIN_KERNEL_ADDRESS) && ((VA) <= vm_last_addr))

#define	PPC_SID_KERNEL  0       /* Must change KERNEL_SEG_REG0_VALUE if !0 */

#define maxAdrSp 16384
#define maxAdrSpb 14
#define USER_MEM_WINDOW_VADDR	0x00000000E0000000ULL
#define PHYS_MEM_WINDOW_VADDR	0x0000000100000000ULL
#define IO_MEM_WINDOW_VADDR		0x0000000080000000ULL
#define IO_MEM_WINDOW_SIZE		0x0000000080000000ULL
#define pmapSmallBlock 65536

#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_DEFAULT_CACHE	0
#define PMAP_INHIBIT_CACHE	1
#define PMAP_GUARDED_CACHE	2
#define PMAP_ACTIVATE_CACHE	4
#define PMAP_NO_GUARD_CACHE	8

/* corresponds to cached, coherent, not writethru, not guarded */
#define VM_WIMG_DEFAULT		(VM_MEM_COHERENT)
#define	VM_WIMG_COPYBACK	(VM_MEM_COHERENT)
#define VM_WIMG_IO		(VM_MEM_COHERENT | 	\
				VM_MEM_NOT_CACHEABLE | VM_MEM_GUARDED)
#define VM_WIMG_WTHRU		(VM_MEM_WRITE_THROUGH | VM_MEM_COHERENT | VM_MEM_GUARDED)
/* write combining mode, aka store gather */
#define VM_WIMG_WCOMB		(VM_MEM_NOT_CACHEABLE | VM_MEM_COHERENT) 

/* 
 * prototypes.
 */
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 void		pmap_bootstrap(uint64_t msize,
				       vm_offset_t *first_avail,
				       unsigned int kmapsize);

extern vm_offset_t pmap_boot_map(vm_size_t size);

extern void sync_cache64(addr64_t pa, unsigned length);
extern void sync_ppage(ppnum_t pa);
extern void	sync_cache_virtual(vm_offset_t va, unsigned length);
extern void flush_dcache(vm_offset_t va, unsigned length, boolean_t phys);
extern void flush_dcache64(addr64_t va, unsigned length, boolean_t phys);
extern void invalidate_dcache(vm_offset_t va, unsigned length, boolean_t phys);
extern void invalidate_dcache64(addr64_t va, unsigned length, boolean_t phys);
extern void invalidate_icache(vm_offset_t va, unsigned length, boolean_t phys);
extern void invalidate_icache64(addr64_t va, unsigned length, boolean_t phys);
extern void pmap_sync_page_data_phys(ppnum_t pa);
extern void pmap_sync_page_attributes_phys(ppnum_t pa);
extern void pmap_map_block(pmap_t pmap, addr64_t va, ppnum_t pa, uint32_t size, vm_prot_t prot, int attr, unsigned int flags);
extern int pmap_map_block_rc(pmap_t pmap, addr64_t va, ppnum_t pa, uint32_t size, vm_prot_t prot, int attr, unsigned int flags);

extern kern_return_t pmap_nest(pmap_t grand, pmap_t subord, addr64_t vstart, addr64_t nstart, uint64_t size);
extern kern_return_t pmap_unnest(pmap_t grand, addr64_t vaddr);
extern ppnum_t pmap_find_phys(pmap_t pmap, addr64_t va);
extern void MapUserMemoryWindowInit(void);
extern addr64_t MapUserMemoryWindow(vm_map_t map, addr64_t va);
extern boolean_t pmap_eligible_for_execute(ppnum_t pa);
extern int pmap_list_resident_pages(
	struct pmap	*pmap,
	vm_offset_t	*listp,
	int		space);
extern void pmap_init_sharedpage(vm_offset_t cpg);
extern void pmap_map_sharedpage(task_t task, pmap_t pmap);
extern void pmap_unmap_sharedpage(pmap_t pmap);


#endif /* _PPC_PMAP_H_ */
Commit	Line	Data
1c79356b	1	/*
91447636	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
ff6e181a A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. Please obtain a copy of the License at
	10	* http://www.opensource.apple.com/apsl/ and read it before using this
	11	* file.
1c79356b	12	*
ff6e181a A	13	* The Original Code and all software distributed under the License are
ff6e181a A	14	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
ff6e181a A	17	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	18	* Please see the License for the specific language governing rights and
	19	* limitations under the License.
1c79356b A	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
	23	/*
	24	* @OSF_COPYRIGHT@
	25	*/
	26	/*
	27	* Copyright (c) 1990 The University of Utah and
	28	* the Center for Software Science at the University of Utah (CSS).
	29	* All rights reserved.
	30	*
	31	* Permission to use, copy, modify and distribute this software is hereby
	32	* granted provided that (1) source code retains these copyright, permission,
	33	* and disclaimer notices, and (2) redistributions including binaries
	34	* reproduce the notices in supporting documentation, and (3) all advertising
	35	* materials mentioning features or use of this software display the following
	36	* acknowledgement: ``This product includes software developed by the Center
	37	* for Software Science at the University of Utah.''
	38	*
	39	* THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
	40	* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF
	41	* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	42	*
	43	* CSS requests users of this software to return to css-dist@cs.utah.edu any
	44	* improvements that they make and grant CSS redistribution rights.
	45	*
	46	* Utah $Hdr: pmap.h 1.13 91/09/25$
	47	* Author: Mike Hibler, Bob Wheeler, University of Utah CSS, 9/90
	48	*/
	49
	50	#ifndef _PPC_PMAP_H_
	51	#define _PPC_PMAP_H_
	52
	53	#include <mach/vm_types.h>
	54	#include <mach/machine/vm_types.h>
	55	#include <mach/vm_prot.h>
	56	#include <mach/vm_statistics.h>
	57	#include <kern/queue.h>
	58	#include <vm/pmap.h>
91447636	59	#include <ppc/mappings.h>
1c79356b	60
55e303ae A	61	#define maxPPage32 0x000FFFFF /* Maximum page number in 32-bit machines */
	62
	63	typedef uint32_t shexlock;
	64
	65	#pragma pack(4) /* Make sure the structure stays as we defined it */
	66
	67	struct sgc {
	68	uint64_t sgcESID; /* ESID portion of segment cache */
	69	#define sgcESmsk 0xFFFFFFFFF0000000ULL /* ESID portion of segment register cache */
	70	uint64_t sgcVSID; /* VSID portion of segment cache */
	71	#define sgcVSmsk 0xFFFFFFFFFFFFF000ULL /* VSID mask */
	72	#define sgcVSKeys 0x0000000000000C00ULL /* Protection keys */
	73	#define sgcVSKeyUsr 53 /* User protection key */
	74	#define sgcVSNoEx 0x0000000000000200ULL /* No execute */
	75	};
	76	#pragma pack()
	77
	78	typedef struct sgc sgc;
	79
91447636 A	80	#pragma pack(4) /* Make sure the structure stays as we defined it */
	81	struct pmap_vmm_stats {
	82	unsigned int vxsGpf; /* Guest faults */
	83	unsigned int vxsGpfMiss; /* Faults that miss in hash table */
	84
	85	unsigned int vxsGrm; /* Guest mapping remove requests */
	86	unsigned int vxsGrmMiss; /* Remove misses in hash table */
	87	unsigned int vxsGrmActive; /* Remove hits that are active */
	88
	89	unsigned int vxsGra; /* Guest remove all mappings requests */
	90	unsigned int vxsGraHits; /* Remove hits in hash table */
	91	unsigned int vxsGraActive; /* Remove hits that are active */
	92
	93	unsigned int vxsGrl; /* Guest remove local mappings requests */
	94	unsigned int vxsGrlActive; /* Active mappings removed */
	95
	96	unsigned int vxsGrs; /* Guest mapping resumes */
	97	unsigned int vxsGrsHitAct; /* Resume hits active entry */
	98	unsigned int vxsGrsHitSusp; /* Resume hits suspended entry */
	99	unsigned int vxsGrsMissGV; /* Resume misses on guest virtual */
	100	unsigned int vxsGrsHitPE; /* Resume hits on host virtual */
	101	unsigned int vxsGrsMissPE; /* Resume misses on host virtual */
	102
	103	unsigned int vxsGad; /* Guest mapping adds */
	104	unsigned int vxsGadHit; /* Add hits entry (active or dormant) */
	105	unsigned int vxsGadFree; /* Add takes free entry in group */
	106	unsigned int vxsGadDormant; /* Add steals dormant entry in group */
	107	unsigned int vxsGadSteal; /* Add steals active entry in group */
	108
	109	unsigned int vxsGsu; /* Guest mapping suspends */
	110	unsigned int vxsGsuHit; /* Suspend hits entry (active only) */
	111	unsigned int vxsGsuMiss; /* Suspend misses entry */
	112
	113	unsigned int vxsGtd; /* Guest test ref&chg */
	114	unsigned int vxsGtdHit; /* Test r&c hits entry (active only) */
	115	unsigned int vxsGtdMiss; /* Test r&c misses entry */
	116	};
	117	#pragma pack()
	118	typedef struct pmap_vmm_stats pmap_vmm_stats;
	119
	120	/* Not wanting to tax all of our customers for the sins of those that use virtual operating
	121	systems, we've built the hash table from its own primitive virtual memory. We first
	122	allocate a pmap_vmm_ext with sufficient space following to accomodate the hash table
	123	index (one 64-bit physical address per 4k-byte page of hash table). The allocation
	124	must not cross a 4k-byte page boundary (we'll be accessing the block with relocation
	125	off), so we'll try a couple of times, then just burn a whole page. We stuff the effective
	126	address of the cache-aligned index into hIdxBase; the physical-mode code locates the index
	127	by adding the size of a pmap_vmm_extension to its translated physical address, then rounding
	128	up to the next 32-byte boundary. Now we grab enough virtual pages to contain the hash table,
	129	and fill in the index with the page's physical addresses. For the final touch that's sure
	130	to please, we initialize the hash table. Mmmmm, golden brown perfection.
	131	*/
	132
	133	#pragma pack(4)
	134	struct pmap_vmm_ext {
	135	addr64_t vmxSalt; /* This block's virt<->real conversion salt */
	136	addr64_t vmxHostPmapPhys; /* Host pmap physical address */
	137	struct pmap vmxHostPmap; / Host pmap effective address */
	138	addr64_t vmxHashPgIdx; / Hash table physical index base address */
	139	vm_offset_t vmxHashPgList; / List of virtual pages comprising the hash table */
	140	unsigned int vmxActiveBitmap; / Bitmap of active mappings in hash table */
	141	pmap_vmm_stats vmxStats; /* Stats for VMM assists */
	142	#define VMX_HPIDX_OFFSET ((sizeof(pmap_vmm_ext) + 127) & ~127)
	143	/* The hash table physical index begins at the first
144	128-byte boundary after the pmap_vmm_ext struct */
145	#define VMX_HPLIST_OFFSET (VMX_HPIDX_OFFSET + (GV_HPAGES * sizeof(addr64_t)))
146	#define VMX_ACTMAP_OFFSET (VMX_HPLIST_OFFSET + (GV_HPAGES * sizeof(vm_offset_t)))
147	};
148	#pragma pack()
149	typedef struct pmap_vmm_ext pmap_vmm_ext;
150
55e303ae	151	#pragma pack(4) /* Make sure the structure stays as we defined it */
1c79356b	152	struct pmap {
55e303ae A	153	queue_head_t pmap_link; /* MUST BE FIRST */
	154	addr64_t pmapvr; /* Virtual to real conversion mask */
	155	shexlock pmapSXlk; /* Shared/Exclusive lock for mapping changes */
	156	unsigned int space; /* space for this pmap */
	157	#define invalSpace 0x00000001 /* Predefined always invalid space */
	158	int ref_count; /* reference count */
	159	unsigned int pmapFlags; /* Flags */
	160	#define pmapKeys 0x00000007 /* Keys and no execute bit to use with this pmap */
	161	#define pmapKeyDef 0x00000006 /* Default keys - Sup = 1, user = 1, no ex = 0 */
	162	#define pmapVMhost 0x00000010 /* pmap with Virtual Machines attached to it */
91447636	163	#define pmapVMgsaa 0x00000020 /* Guest shadow assist active */
55e303ae A	164	unsigned int spaceNum; /* Space number */
	165	unsigned int pmapCCtl; /* Cache control */
	166	#define pmapCCtlVal 0xFFFF0000 /* Valid entries */
	167	#define pmapCCtlLck 0x00008000 /* Lock bit */
	168	#define pmapCCtlLckb 16 /* Lock bit */
	169	#define pmapCCtlGen 0x00007FFF /* Generation number */
	170
	171	#define pmapSegCacheCnt 16 /* Maximum number of cache entries */
	172	#define pmapSegCacheUse 16 /* Number of cache entries to use */
	173
	174	struct pmap freepmap; / Free pmaps */
91447636 A	175	pmap_vmm_ext pmapVmmExt; / VMM extension block, for VMM host and guest pmaps */
91447636 A	176	addr64_t pmapVmmExtPhys; /* VMM extension block physical address */
55e303ae A	177	/* 0x038 */
	178	uint64_t pmapSCSubTag; /* Segment cache sub-tags. This is a 16 entry 4 bit array */
	179	/* 0x040 */
	180	sgc pmapSegCache[pmapSegCacheCnt]; /* SLD values cached for quick load */
	181
	182	/* 0x140 */
	183	/* if fanout is 4, then shift is 1, if fanout is 8 shift is 2, etc */
	184	#define kSkipListFanoutShift 1
	185	/* with n lists, we can handle (fanout*n) pages optimally /
	186	#define kSkipListMaxLists 12
	187	unsigned char pmapCurLists; /* 0x140 - max #lists any mapping in this pmap currently has */
	188	unsigned char pmapRsv2[3];
	189	uint32_t pmapRandNum; /* 0x144 - used by mapSetLists() as a random number generator */
	190	addr64_t pmapSkipLists[kSkipListMaxLists]; /* 0x148 - the list headers */
	191	/* following statistics conditionally gathered */
	192	uint64_t pmapSearchVisits; /* 0x1A8 - nodes visited searching pmaps */
	193	uint32_t pmapSearchCnt; /* 0x1B0 - number of calls to mapSearch or mapSearchFull */
	194
	195	unsigned int pmapRsv3[3];
	196
	197	/* 0x1C0 */
	198
	199	struct pmap_statistics stats; /* statistics */
1c79356b A	200
	201	/* Need to pad out to a power of 2 - right now it is 512 bytes */
	202	#define pmapSize 512
	203	};
55e303ae A	204	#pragma pack()
	205
	206	#pragma pack(4)
	207	struct pmapTransTab {
	208	addr64_t pmapPAddr; /* Physcial address of pmap */
	209	unsigned int pmapVAddr; /* Virtual address of pmap */
	210	};
	211	#pragma pack() /* Make sure the structure stays as we defined it */
	212
	213	typedef struct pmapTransTab pmapTransTab;
1c79356b	214
91447636 A	215	/*
	216	* Address Chunk IDentified Table
	217	*/
	218
	219	struct acidTabEnt {
	220	unsigned int acidVAddr; /* Virtual address of pmap or pointer to next free entry */
	221	unsigned int acidGas; /* reserved */
	222	addr64_t acidPAddr; /* Physcial address of pmap */
	223	};
	224
	225	typedef struct acidTabEnt acidTabEnt;
	226
	227	extern acidTabEnt acidTab; / Pointer to acid table */
	228	extern acidTabEnt acidFree; / List of free acid entries */
	229
1c79356b A	230	#define PMAP_NULL ((pmap_t) 0)
1c79356b A	231
1c79356b	232	extern pmap_t cursor_pmap; /* The pmap to start allocations with */
55e303ae A	233	extern pmap_t sharedPmap;
	234	extern unsigned int sharedPage;
	235	extern int ppc_max_adrsp; /* Maximum number of concurrent address spaces allowed. */
	236	extern addr64_t vm_max_address; /* Maximum effective address supported */
	237	extern addr64_t vm_max_physical; /* Maximum physical address supported */
	238	extern pmapTransTab pmapTrans; / Space to pmap translate table */
1c79356b A	239	#define PMAP_SWITCH_USER(th, map, my_cpu) th->map = map;
1c79356b A	240
1c79356b A	241	#define PMAP_CONTEXT(pmap,th)
	242
	243	#define pmap_kernel_va(VA) \
55e303ae	244	(((VA) >= VM_MIN_KERNEL_ADDRESS) && ((VA) <= vm_last_addr))
1c79356b A	245
1c79356b A	246	#define PPC_SID_KERNEL 0 /* Must change KERNEL_SEG_REG0_VALUE if !0 */
55e303ae A	247
	248	#define maxAdrSp 16384
	249	#define maxAdrSpb 14
91447636 A	250	#define USER_MEM_WINDOW_VADDR 0x00000000E0000000ULL
	251	#define PHYS_MEM_WINDOW_VADDR 0x0000000100000000ULL
	252	#define IO_MEM_WINDOW_VADDR 0x0000000080000000ULL
	253	#define IO_MEM_WINDOW_SIZE 0x0000000080000000ULL
3a60a9f5	254	#define pmapSmallBlock 65536
1c79356b A	255
	256	#define pmap_kernel() (kernel_pmap)
	257	#define pmap_resident_count(pmap) ((pmap)->stats.resident_count)
	258	#define pmap_remove_attributes(pmap,start,end)
	259	#define pmap_copy(dpmap,spmap,da,len,sa)
	260	#define pmap_update()
	261
9bccf70c A	262	#define PMAP_DEFAULT_CACHE 0
	263	#define PMAP_INHIBIT_CACHE 1
	264	#define PMAP_GUARDED_CACHE 2
	265	#define PMAP_ACTIVATE_CACHE 4
	266	#define PMAP_NO_GUARD_CACHE 8
	267
	268	/* corresponds to cached, coherent, not writethru, not guarded */
55e303ae A	269	#define VM_WIMG_DEFAULT (VM_MEM_COHERENT)
	270	#define VM_WIMG_COPYBACK (VM_MEM_COHERENT)
	271	#define VM_WIMG_IO (VM_MEM_COHERENT \| \
	272	VM_MEM_NOT_CACHEABLE \| VM_MEM_GUARDED)
	273	#define VM_WIMG_WTHRU (VM_MEM_WRITE_THROUGH \| VM_MEM_COHERENT \| VM_MEM_GUARDED)
	274	/* write combining mode, aka store gather */
	275	#define VM_WIMG_WCOMB (VM_MEM_NOT_CACHEABLE \| VM_MEM_COHERENT)
9bccf70c	276
1c79356b A	277	/*
	278	* prototypes.
	279	*/
1c79356b A	280	extern vm_offset_t phystokv(vm_offset_t pa); /* Get kernel virtual address from physical */
	281	extern vm_offset_t kvtophys(vm_offset_t va); /* Get physical address from kernel virtual */
	282	extern vm_offset_t pmap_map(vm_offset_t va,
	283	vm_offset_t spa,
	284	vm_offset_t epa,
	285	vm_prot_t prot);
	286	extern kern_return_t pmap_add_physical_memory(vm_offset_t spa,
	287	vm_offset_t epa,
	288	boolean_t available,
	289	unsigned int attr);
55e303ae	290	extern void pmap_bootstrap(uint64_t msize,
1c79356b	291	vm_offset_t *first_avail,
55e303ae	292	unsigned int kmapsize);
1c79356b	293
91447636	294	extern vm_offset_t pmap_boot_map(vm_size_t size);
1c79356b	295
55e303ae A	296	extern void sync_cache64(addr64_t pa, unsigned length);
	297	extern void sync_ppage(ppnum_t pa);
	298	extern void sync_cache_virtual(vm_offset_t va, unsigned length);
1c79356b	299	extern void flush_dcache(vm_offset_t va, unsigned length, boolean_t phys);
55e303ae	300	extern void flush_dcache64(addr64_t va, unsigned length, boolean_t phys);
1c79356b	301	extern void invalidate_dcache(vm_offset_t va, unsigned length, boolean_t phys);
55e303ae	302	extern void invalidate_dcache64(addr64_t va, unsigned length, boolean_t phys);
1c79356b	303	extern void invalidate_icache(vm_offset_t va, unsigned length, boolean_t phys);
55e303ae	304	extern void invalidate_icache64(addr64_t va, unsigned length, boolean_t phys);
91447636 A	305	extern void pmap_sync_page_data_phys(ppnum_t pa);
91447636 A	306	extern void pmap_sync_page_attributes_phys(ppnum_t pa);
3a60a9f5 A	307	extern void pmap_map_block(pmap_t pmap, addr64_t va, ppnum_t pa, uint32_t size, vm_prot_t prot, int attr, unsigned int flags);
3a60a9f5 A	308	extern int pmap_map_block_rc(pmap_t pmap, addr64_t va, ppnum_t pa, uint32_t size, vm_prot_t prot, int attr, unsigned int flags);
55e303ae A	309
55e303ae A	310	extern kern_return_t pmap_nest(pmap_t grand, pmap_t subord, addr64_t vstart, addr64_t nstart, uint64_t size);
91447636	311	extern kern_return_t pmap_unnest(pmap_t grand, addr64_t vaddr);
55e303ae	312	extern ppnum_t pmap_find_phys(pmap_t pmap, addr64_t va);
91447636 A	313	extern void MapUserMemoryWindowInit(void);
	314	extern addr64_t MapUserMemoryWindow(vm_map_t map, addr64_t va);
	315	extern boolean_t pmap_eligible_for_execute(ppnum_t pa);
	316	extern int pmap_list_resident_pages(
	317	struct pmap *pmap,
	318	vm_offset_t *listp,
	319	int space);
	320	extern void pmap_init_sharedpage(vm_offset_t cpg);
	321	extern void pmap_map_sharedpage(task_t task, pmap_t pmap);
	322	extern void pmap_unmap_sharedpage(pmap_t pmap);
	323
	324
1c79356b A	325
	326	#endif /* _PPC_PMAP_H_ */
	327