diff options
Diffstat (limited to 'sys/vm/vm_map.h')
| -rw-r--r-- | sys/vm/vm_map.h | 75 |
1 files changed, 50 insertions, 25 deletions
diff --git a/sys/vm/vm_map.h b/sys/vm/vm_map.h index 7066bd054765..7dc7ee020a75 100644 --- a/sys/vm/vm_map.h +++ b/sys/vm/vm_map.h @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * from: @(#)vm_map.h 7.3 (Berkeley) 4/21/91 - * $Id: vm_map.h,v 1.2 1993/10/16 16:20:36 rgrimes Exp $ + * $Id: vm_map.h,v 1.5 1994/01/17 09:33:43 davidg Exp $ */ /* @@ -100,6 +100,7 @@ typedef union vm_map_object vm_map_object_t; * and user-exported inheritance and protection information. * Also included is control information for virtual copy operations. */ + struct vm_map_entry { struct vm_map_entry *prev; /* previous entry */ struct vm_map_entry *next; /* next entry */ @@ -107,11 +108,11 @@ struct vm_map_entry { vm_offset_t end; /* end address */ union vm_map_object object; /* object I point to */ vm_offset_t offset; /* offset into object */ - boolean_t is_a_map; /* Is "object" a map? */ - boolean_t is_sub_map; /* Is "object" a submap? */ + unsigned char is_a_map:1, /* Is "object" a map? */ + is_sub_map:1, /* Is "object" a submap? */ /* Only in sharing maps: */ - boolean_t copy_on_write; /* is data copy-on-write */ - boolean_t needs_copy; /* does object need to be copied */ + copy_on_write:1,/* is data copy-on-write */ + needs_copy:1;/* does object need to be copied */ /* Only in task maps: */ vm_prot_t protection; /* protection code */ vm_prot_t max_protection; /* maximum protection */ @@ -176,22 +177,50 @@ typedef struct { /* * Exported procedures that operate on vm_map_t. */ +extern int vm_map_pageable(vm_map_t, vm_offset_t, vm_offset_t, boolean_t); +extern void vm_map_startup(void); +struct pmap; struct vm_object; +extern vm_map_t vm_map_create(struct pmap *, vm_offset_t, vm_offset_t, + boolean_t); +extern void vm_map_init(struct vm_map *, vm_offset_t, vm_offset_t, boolean_t); +extern vm_map_entry_t vm_map_entry_create(vm_map_t); +extern void vm_map_entry_dispose(vm_map_t, vm_map_entry_t); +extern void vm_map_reference(vm_map_t); +extern void vm_map_deallocate(vm_map_t); +extern int vm_map_insert(vm_map_t, struct vm_object *, vm_offset_t, vm_offset_t, + vm_offset_t); +extern boolean_t vm_map_lookup_entry(vm_map_t, vm_offset_t, vm_map_entry_t *); +extern int vm_map_find(vm_map_t, struct vm_object *, vm_offset_t, vm_offset_t*, + vm_size_t, boolean_t); +extern void vm_map_simplify_entry(vm_map_t, vm_map_entry_t); +extern int vm_map_submap(vm_map_t, vm_offset_t, vm_offset_t, vm_map_t); +extern int vm_map_protect(vm_map_t, vm_offset_t, vm_offset_t, vm_prot_t, + boolean_t); +extern int vm_map_inherit(vm_map_t, vm_offset_t, vm_offset_t, vm_inherit_t); +extern int vm_map_pageable(vm_map_t, vm_offset_t, vm_offset_t, boolean_t); +extern void vm_map_entry_unwire(vm_map_t, vm_map_entry_t); +extern void vm_map_entry_delete(vm_map_t, vm_map_entry_t); +extern int vm_map_delete(vm_map_t, vm_offset_t, vm_offset_t); +extern int vm_map_remove(vm_map_t, vm_offset_t, vm_offset_t); +extern boolean_t vm_map_check_protection(vm_map_t, vm_offset_t, vm_offset_t, + vm_prot_t); +extern void vm_map_copy_entry(vm_map_t, vm_map_t, vm_map_entry_t, + vm_map_entry_t); +extern int vm_map_copy(vm_map_t, vm_map_t, vm_offset_t, vm_size_t, vm_offset_t, + boolean_t, boolean_t); +extern int vm_map_lookup(vm_map_t *, vm_offset_t, vm_prot_t, + vm_map_entry_t *, struct vm_object **, vm_offset_t *, + vm_prot_t *, boolean_t *, boolean_t *); +extern void vm_map_lookup_done(vm_map_t, vm_map_entry_t); +extern void vm_map_simplify(vm_map_t, vm_offset_t); +extern void vm_map_print(vm_map_t, boolean_t); /* f defined(DEBUG) || NDDB>0 */ + +extern int vm_fault(struct vm_map *, vm_offset_t, vm_prot_t, boolean_t); +extern void vm_fault_wire(struct vm_map *, vm_offset_t, vm_offset_t); +extern void vm_fault_unwire(struct vm_map *, vm_offset_t, vm_offset_t); +extern void vm_fault_copy_entry(vm_map_t, vm_map_t, vm_map_entry_t, + vm_map_entry_t); -void vm_map_init(); -vm_map_t vm_map_create(); -void vm_map_deallocate(); -void vm_map_reference(); -int vm_map_find(); -int vm_map_remove(); -int vm_map_lookup(); -void vm_map_lookup_done(); -int vm_map_protect(); -int vm_map_inherit(); -int vm_map_copy(); -void vm_map_print(); -void vm_map_copy_entry(); -boolean_t vm_map_verify(); -void vm_map_verify_done(); /* * Functions implemented as macros @@ -203,10 +232,6 @@ void vm_map_verify_done(); /* XXX: number of kernel maps and entries to statically allocate */ #define MAX_KMAP 10 -#ifdef OMIT -#define MAX_KMAPENT 500 -#else /* !OMIT*/ -#define MAX_KMAPENT 1000 /* 15 Aug 92*/ -#endif /* !OMIT*/ +#define MAX_KMAPENT 128 #endif _VM_MAP_ |