/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_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.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * 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
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
#ifndef _VM_PMAP_H_
#define _VM_PMAP_H_
-#include <sys/appleapiopts.h>
-
-#ifdef __APPLE_API_PRIVATE
-
#include <mach/kern_return.h>
#include <mach/vm_param.h>
#include <mach/vm_types.h>
#include <mach/boolean.h>
#include <mach/vm_prot.h>
+#ifdef KERNEL_PRIVATE
+
/*
* The following is a description of the interface to the
* machine-dependent "physical map" data structure. The module
* many address spaces.
*/
-#if !defined(MACH_KERNEL_PRIVATE)
-
-typedef void *pmap_t;
-
-#else /* MACH_KERNEL_PRIVATE */
-
-typedef struct pmap *pmap_t;
+/* Copy between a physical page and a virtual address */
+/* LP64todo - switch to vm_map_offset_t when it grows */
+extern kern_return_t copypv(
+ addr64_t source,
+ addr64_t sink,
+ unsigned int size,
+ int which);
+#define cppvPsnk 1
+#define cppvPsnkb 31
+#define cppvPsrc 2
+#define cppvPsrcb 30
+#define cppvFsnk 4
+#define cppvFsnkb 29
+#define cppvFsrc 8
+#define cppvFsrcb 28
+#define cppvNoModSnk 16
+#define cppvNoModSnkb 27
+#define cppvNoRefSrc 32
+#define cppvNoRefSrcb 26
+#define cppvKmap 64 /* Use the kernel's vm_map */
+#define cppvKmapb 25
+
+#ifdef MACH_KERNEL_PRIVATE
#include <machine/pmap.h>
* There is traditionally also a pmap_bootstrap,
* used very early by machine-dependent code,
* but it is not part of the interface.
+ *
+ * LP64todo -
+ * These interfaces are tied to the size of the
+ * kernel pmap - and therefore use the "local"
+ * vm_offset_t, etc... types.
*/
-extern vm_offset_t pmap_steal_memory(vm_size_t size);
+extern void *pmap_steal_memory(vm_size_t size);
/* During VM initialization,
* steal a chunk of memory.
*/
* use remaining physical pages
* to allocate page frames.
*/
-extern void pmap_init(void); /* Initialization,
+extern void pmap_init(void) __attribute__((section("__TEXT, initcode")));
+ /* Initialization,
* after kernel runs
* in virtual memory.
*/
+extern void mapping_adjust(void); /* Adjust free mapping count */
+
+extern void mapping_free_prime(void); /* Primes the mapping block release list */
+
#ifndef MACHINE_PAGES
/*
* If machine/pmap.h defines MACHINE_PAGES, it must implement
* However, for best performance pmap_free_pages should be accurate.
*/
-extern boolean_t pmap_next_page(vm_offset_t *paddr);
+extern boolean_t pmap_next_page(ppnum_t *pnum);
/* During VM initialization,
* return the next unused
* physical page.
/*
* Routines to manage the physical map data structure.
*/
-extern pmap_t pmap_create(vm_size_t size); /* Create a pmap_t. */
+extern pmap_t pmap_create( /* Create a pmap_t. */
+ vm_map_size_t size,
+#ifdef __i386__
+ boolean_t is_64bit);
+#else
+ __unused boolean_t is_64bit);
+#endif
extern pmap_t (pmap_kernel)(void); /* Return the kernel's pmap */
extern void pmap_reference(pmap_t pmap); /* Gain a reference. */
extern void pmap_destroy(pmap_t pmap); /* Release a reference. */
extern void pmap_enter( /* Enter a mapping */
pmap_t pmap,
- vm_offset_t v,
- vm_offset_t pa,
+ vm_map_offset_t v,
+ ppnum_t pn,
vm_prot_t prot,
unsigned int flags,
boolean_t wired);
extern void pmap_remove_some_phys(
pmap_t pmap,
- vm_offset_t pa);
+ ppnum_t pn);
/*
*/
extern void pmap_page_protect( /* Restrict access to page. */
- vm_offset_t phys,
+ ppnum_t phys,
vm_prot_t prot);
extern void (pmap_zero_page)(
- vm_offset_t phys);
+ ppnum_t pn);
extern void (pmap_zero_part_page)(
- vm_offset_t p,
+ ppnum_t pn,
vm_offset_t offset,
vm_size_t len);
extern void (pmap_copy_page)(
- vm_offset_t src,
- vm_offset_t dest);
+ ppnum_t src,
+ ppnum_t dest);
extern void (pmap_copy_part_page)(
- vm_offset_t src,
+ ppnum_t src,
vm_offset_t src_offset,
- vm_offset_t dst,
+ ppnum_t dst,
vm_offset_t dst_offset,
vm_size_t len);
extern void (pmap_copy_part_lpage)(
vm_offset_t src,
- vm_offset_t dst,
+ ppnum_t dst,
vm_offset_t dst_offset,
vm_size_t len);
extern void (pmap_copy_part_rpage)(
- vm_offset_t src,
+ ppnum_t src,
vm_offset_t src_offset,
vm_offset_t dst,
vm_size_t len);
+
+extern unsigned int (pmap_disconnect)( /* disconnect mappings and return reference and change */
+ ppnum_t phys);
+
+extern kern_return_t (pmap_attribute_cache_sync)( /* Flush appropriate
+ * cache based on
+ * page number sent */
+ ppnum_t pn,
+ vm_size_t size,
+ vm_machine_attribute_t attribute,
+ vm_machine_attribute_val_t* value);
+
+extern unsigned int (pmap_cache_attributes)(
+ ppnum_t pn);
+
+extern void pmap_sync_page_data_phys(ppnum_t pa);
+extern void pmap_sync_page_attributes_phys(ppnum_t pa);
/*
* debug/assertions. pmap_verify_free returns true iff
* the given physical page is mapped into no pmap.
*/
-extern boolean_t pmap_verify_free(vm_offset_t paddr);
+extern boolean_t pmap_verify_free(ppnum_t pn);
/*
* Statistics routines
*/
extern int (pmap_resident_count)(pmap_t pmap);
+extern int (pmap_resident_max)(pmap_t pmap);
/*
* Sundry required (internal) routines
*/
+#ifdef CURRENTLY_UNUSED_AND_UNTESTED
extern void pmap_collect(pmap_t pmap);/* Perform garbage
* collection, if any */
-
-
-extern vm_offset_t (pmap_phys_address)( /* Transform address returned
- * by device driver mapping
- * function to physical address
- * known to this module. */
- int frame);
-
-extern int (pmap_phys_to_frame)( /* Inverse of pmap_phys_addess,
- * for use by device driver
- * mapping function in
- * machine-independent
- * pseudo-devices. */
- vm_offset_t phys);
-
+#endif
/*
* Optional routines
*/
* if desired. */
pmap_t dest,
pmap_t source,
- vm_offset_t dest_va,
- vm_size_t size,
- vm_offset_t source_va);
+ vm_map_offset_t dest_va,
+ vm_map_size_t size,
+ vm_map_offset_t source_va);
extern kern_return_t (pmap_attribute)( /* Get/Set special memory
* attributes */
pmap_t pmap,
- vm_offset_t va,
- vm_size_t size,
+ vm_map_offset_t va,
+ vm_map_size_t size,
vm_machine_attribute_t attribute,
vm_machine_attribute_val_t* value);
-extern kern_return_t (pmap_attribute_cache_sync)( /* Flush appropriate
- * cache based on
- * phys addr sent */
- vm_offset_t addr,
- vm_size_t size,
- vm_machine_attribute_t attribute,
- vm_machine_attribute_val_t* value);
-
/*
* Routines defined as macros.
*/
#ifndef PMAP_ACTIVATE_USER
-#define PMAP_ACTIVATE_USER(act, cpu) { \
+#ifndef PMAP_ACTIVATE
+#define PMAP_ACTIVATE_USER(thr, cpu)
+#else /* PMAP_ACTIVATE */
+#define PMAP_ACTIVATE_USER(thr, cpu) { \
pmap_t pmap; \
\
- pmap = (act)->map->pmap; \
+ pmap = (thr)->map->pmap; \
if (pmap != pmap_kernel()) \
- PMAP_ACTIVATE(pmap, (act), (cpu)); \
+ PMAP_ACTIVATE(pmap, (thr), (cpu)); \
}
+#endif /* PMAP_ACTIVATE */
#endif /* PMAP_ACTIVATE_USER */
#ifndef PMAP_DEACTIVATE_USER
-#define PMAP_DEACTIVATE_USER(act, cpu) { \
+#ifndef PMAP_DEACTIVATE
+#define PMAP_DEACTIVATE_USER(thr, cpu)
+#else /* PMAP_DEACTIVATE */
+#define PMAP_DEACTIVATE_USER(thr, cpu) { \
pmap_t pmap; \
\
- pmap = (act)->map->pmap; \
- if ((pmap) != pmap_kernel()) \
- PMAP_DEACTIVATE(pmap, (act), (cpu)); \
+ pmap = (thr)->map->pmap; \
+ if ((pmap) != pmap_kernel()) \
+ PMAP_DEACTIVATE(pmap, (thr), (cpu)); \
}
+#endif /* PMAP_DEACTIVATE */
#endif /* PMAP_DEACTIVATE_USER */
#ifndef PMAP_ACTIVATE_KERNEL
+#ifndef PMAP_ACTIVATE
+#define PMAP_ACTIVATE_KERNEL(cpu)
+#else /* PMAP_ACTIVATE */
#define PMAP_ACTIVATE_KERNEL(cpu) \
- PMAP_ACTIVATE(pmap_kernel(), THR_ACT_NULL, cpu)
+ PMAP_ACTIVATE(pmap_kernel(), THREAD_NULL, cpu)
+#endif /* PMAP_ACTIVATE */
#endif /* PMAP_ACTIVATE_KERNEL */
#ifndef PMAP_DEACTIVATE_KERNEL
+#ifndef PMAP_DEACTIVATE
+#define PMAP_DEACTIVATE_KERNEL(cpu)
+#else /* PMAP_DEACTIVATE */
#define PMAP_DEACTIVATE_KERNEL(cpu) \
- PMAP_DEACTIVATE(pmap_kernel(), THR_ACT_NULL, cpu)
+ PMAP_DEACTIVATE(pmap_kernel(), THREAD_NULL, cpu)
+#endif /* PMAP_DEACTIVATE */
#endif /* PMAP_DEACTIVATE_KERNEL */
#ifndef PMAP_ENTER
* Macro to be used in place of pmap_enter()
*/
#define PMAP_ENTER(pmap, virtual_address, page, protection, flags, wired) \
- MACRO_BEGIN \
- pmap_enter( \
- (pmap), \
- (virtual_address), \
- (page)->phys_addr, \
- (protection) & ~(page)->page_lock, \
- flags, \
- (wired) \
- ); \
- MACRO_END
+ MACRO_BEGIN \
+ pmap_t __pmap = (pmap); \
+ vm_page_t __page = (page); \
+ \
+ if (__pmap != kernel_pmap) { \
+ ASSERT_PAGE_DECRYPTED(__page); \
+ } \
+ if (__page->error) { \
+ panic("VM page %p should not have an error\n", \
+ __page); \
+ } \
+ pmap_enter(__pmap, \
+ (virtual_address), \
+ __page->phys_page, \
+ (protection), \
+ (flags), \
+ (wired)); \
+ MACRO_END
#endif /* !PMAP_ENTER */
/*
* by the hardware.
*/
/* Clear reference bit */
-extern void pmap_clear_reference(vm_offset_t paddr);
+extern void pmap_clear_reference(ppnum_t pn);
/* Return reference bit */
-extern boolean_t (pmap_is_referenced)(vm_offset_t paddr);
+extern boolean_t (pmap_is_referenced)(ppnum_t pn);
/* Set modify bit */
-extern void pmap_set_modify(vm_offset_t paddr);
+extern void pmap_set_modify(ppnum_t pn);
/* Clear modify bit */
-extern void pmap_clear_modify(vm_offset_t paddr);
+extern void pmap_clear_modify(ppnum_t pn);
/* Return modify bit */
-extern boolean_t pmap_is_modified(vm_offset_t paddr);
+extern boolean_t pmap_is_modified(ppnum_t pn);
+ /* Return modified and referenced bits */
+extern unsigned int pmap_get_refmod(ppnum_t pn);
+ /* Clear modified and referenced bits */
+extern void pmap_clear_refmod(ppnum_t pn, unsigned int mask);
+#define VM_MEM_MODIFIED 0x01 /* Modified bit */
+#define VM_MEM_REFERENCED 0x02 /* Referenced bit */
/*
* Routines that operate on ranges of virtual addresses.
*/
extern void pmap_protect( /* Change protections. */
pmap_t map,
- vm_offset_t s,
- vm_offset_t e,
+ vm_map_offset_t s,
+ vm_map_offset_t e,
vm_prot_t prot);
extern void (pmap_pageable)(
pmap_t pmap,
- vm_offset_t start,
- vm_offset_t end,
+ vm_map_offset_t start,
+ vm_map_offset_t end,
boolean_t pageable);
-#endif /* MACH_KERNEL_PRIVATE */
+#ifndef NO_NESTED_PMAP
+extern uint64_t pmap_nesting_size_min;
+extern uint64_t pmap_nesting_size_max;
+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,
+ uint64_t size);
+#endif /* NO_NESTED_PMAP */
+
+#endif /* MACH_KERNEL_PRIVATE */
/*
* JMM - This portion is exported to other kernel components right now,
* is provided in a cleaner manner.
*/
-#define PMAP_NULL ((pmap_t) 0)
-
extern pmap_t kernel_pmap; /* The kernel's map */
#define pmap_kernel() (kernel_pmap)
/* machine independent WIMG bits */
-#define VM_MEM_GUARDED 0x1
-#define VM_MEM_COHERENT 0x2
-#define VM_MEM_NOT_CACHEABLE 0x4
-#define VM_MEM_WRITE_THROUGH 0x8
+#define VM_MEM_GUARDED 0x1 /* (G) Guarded Storage */
+#define VM_MEM_COHERENT 0x2 /* (M) Memory Coherency */
+#define VM_MEM_NOT_CACHEABLE 0x4 /* (I) Cache Inhibit */
+#define VM_MEM_WRITE_THROUGH 0x8 /* (W) Write-Through */
#define VM_WIMG_MASK 0xFF
#define VM_WIMG_USE_DEFAULT 0x80000000
-extern void pmap_modify_pages( /* Set modify bit for pages */
- pmap_t map,
- vm_offset_t s,
- vm_offset_t e);
-
extern vm_offset_t pmap_extract(pmap_t pmap,
- vm_offset_t va);
+ vm_map_offset_t va);
extern void pmap_change_wiring( /* Specify pageability */
pmap_t pmap,
- vm_offset_t va,
+ vm_map_offset_t va,
boolean_t wired);
+/* LP64todo - switch to vm_map_offset_t when it grows */
extern void pmap_remove( /* Remove mappings. */
pmap_t map,
- vm_offset_t s,
- vm_offset_t e);
+ vm_map_offset_t s,
+ vm_map_offset_t e);
+
+extern void fillPage(ppnum_t pa, unsigned int fill);
+
+extern void pmap_map_sharedpage(task_t task, pmap_t pmap);
+extern void pmap_unmap_sharedpage(pmap_t pmap);
-#endif /* __APPLE_API_PRIVATE */
+#endif /* KERNEL_PRIVATE */
#endif /* _VM_PMAP_H_ */
projects / apple / xnu.git / blobdiff