diff options
Diffstat (limited to 'sys/vm/vm_object.h')
| -rw-r--r-- | sys/vm/vm_object.h | 157 |
1 files changed, 1 insertions, 156 deletions
diff --git a/sys/vm/vm_object.h b/sys/vm/vm_object.h index 1364434568c..dc488104f49 100644 --- a/sys/vm/vm_object.h +++ b/sys/vm/vm_object.h @@ -1,4 +1,4 @@ -/* $OpenBSD: vm_object.h,v 1.10 2000/01/27 18:52:42 art Exp $ */ +/* $OpenBSD: vm_object.h,v 1.11 2001/06/27 04:52:40 art Exp $ */ /* $NetBSD: vm_object.h,v 1.16 1995/03/29 22:10:28 briggs Exp $ */ /* @@ -75,159 +75,4 @@ #include <vm/vm_page.h> #include <vm/vm_pager.h> -#if !defined(UVM) -/* - * Types defined: - * - * vm_object_t Virtual memory object. - */ - -struct vm_object { - struct pglist memq; /* Resident memory */ - TAILQ_ENTRY(vm_object) object_list; /* list of all objects */ - u_short flags; /* see below */ - u_short paging_in_progress; /* Paging (in or out) so - don't collapse or destroy */ - simple_lock_data_t Lock; /* Synchronization */ - int ref_count; /* How many refs?? */ - vm_size_t size; /* Object size */ - int resident_page_count; - /* number of resident pages */ - struct vm_object *copy; /* Object that holds copies of - my changed pages */ - vm_pager_t pager; /* Where to get data */ - vm_offset_t paging_offset; /* Offset into paging space */ - struct vm_object *shadow; /* My shadow */ - vm_offset_t shadow_offset; /* Offset in shadow */ - TAILQ_ENTRY(vm_object) cached_list; /* for persistence */ - LIST_HEAD(, vm_object) shadowers; /* set of shadowers */ - LIST_ENTRY(vm_object) shadowers_list; /* link to next shadower of - this object's shadow */ -}; - -/* - * Flags - */ -#define OBJ_CANPERSIST 0x0001 /* allow to persist */ -#define OBJ_INTERNAL 0x0002 /* internally created object */ -#define OBJ_ACTIVE 0x0004 /* used to mark active objects */ -#define OBJ_FADING 0x0008 /* tell others that the object is going away */ -#define OBJ_WAITING 0x8000 /* someone is waiting for paging to finish */ - -TAILQ_HEAD(vm_object_hash_head, vm_object_hash_entry); - -struct vm_object_hash_entry { - TAILQ_ENTRY(vm_object_hash_entry) hash_links; /* hash chain links */ - vm_object_t object; /* object represented */ -}; - -typedef struct vm_object_hash_entry *vm_object_hash_entry_t; - -#ifdef _KERNEL -TAILQ_HEAD(object_q, vm_object); - -struct object_q vm_object_cached_list; /* list of objects persisting */ -int vm_object_cached; /* size of cached list */ -simple_lock_data_t vm_cache_lock; /* lock for object cache */ - -struct object_q vm_object_list; /* list of allocated objects */ -long vm_object_count; /* count of all objects */ -simple_lock_data_t vm_object_list_lock; - /* lock for object list and count */ - -vm_object_t kernel_object; /* the single kernel object */ -vm_object_t kmem_object; - -#define vm_object_cache_lock() simple_lock(&vm_cache_lock) -#define vm_object_cache_unlock() simple_unlock(&vm_cache_lock) -#endif /* _KERNEL */ - -#define vm_object_lock_init(object) simple_lock_init(&(object)->Lock) -#define vm_object_lock(object) simple_lock(&(object)->Lock) -#define vm_object_unlock(object) simple_unlock(&(object)->Lock) -#define vm_object_lock_try(object) simple_lock_try(&(object)->Lock) - -#define vm_object_sleep(event, object, interruptible, where) \ - do { \ - (object)->flags |= OBJ_WAITING; \ - thread_sleep_msg((event), &(object)->Lock, \ - (interruptible), (where), 0); \ - } while (0) - -#define vm_object_wakeup(object) \ - do { \ - if ((object)->flags & OBJ_WAITING) { \ - (object)->flags &= ~OBJ_WAITING; \ - thread_wakeup((object)); \ - } \ - } while (0) - -#define vm_object_paging(object) \ - ((object)->paging_in_progress != 0) - -#ifndef DIAGNOSTIC -#define vm_object_paging_begin(object) \ - do { \ - (object)->paging_in_progress++; \ - } while (0) -#else -#define vm_object_paging_begin(object) \ - do { \ - if ((object)->paging_in_progress == 0xdead) \ - panic("vm_object_paging_begin"); \ - (object)->paging_in_progress++; \ - } while (0) -#endif - -#define vm_object_paging_end(object) \ - do { \ - if (--((object)->paging_in_progress) == 0) \ - vm_object_wakeup((object)); \ - } while (0) - -#define vm_object_paging_wait(object,msg) \ - do { \ - while (vm_object_paging((object))) { \ - vm_object_sleep((object), (object), FALSE, \ - (msg)); \ - vm_object_lock((object)); \ - } \ - } while (0) - -#ifdef _KERNEL -vm_object_t vm_object_allocate __P((vm_size_t)); -void vm_object_cache_clear __P((void)); -void vm_object_cache_trim __P((void)); -boolean_t vm_object_coalesce __P((vm_object_t, vm_object_t, - vm_offset_t, vm_offset_t, vm_offset_t, vm_size_t)); -void vm_object_collapse __P((vm_object_t)); -void vm_object_copy __P((vm_object_t, vm_offset_t, vm_size_t, - vm_object_t *, vm_offset_t *, boolean_t *)); -void vm_object_deactivate_pages __P((vm_object_t)); -void vm_object_deallocate __P((vm_object_t)); -void vm_object_enter __P((vm_object_t, vm_pager_t)); -void vm_object_init __P((vm_size_t)); -vm_object_t vm_object_lookup __P((vm_pager_t)); -boolean_t vm_object_page_clean __P((vm_object_t, - vm_offset_t, vm_offset_t, boolean_t, boolean_t)); -void vm_object_page_remove __P((vm_object_t, - vm_offset_t, vm_offset_t)); -void vm_object_pmap_copy __P((vm_object_t, - vm_offset_t, vm_offset_t)); -void vm_object_pmap_remove __P((vm_object_t, - vm_offset_t, vm_offset_t)); -void vm_object_prefer __P((vm_object_t, - vm_offset_t, vm_offset_t *)); -void vm_object_print __P((vm_object_t, boolean_t)); -void _vm_object_print __P((vm_object_t, boolean_t, - int (*)(const char *, ...))); -void vm_object_reference __P((vm_object_t)); -void vm_object_remove __P((vm_pager_t)); -void vm_object_setpager __P((vm_object_t, - vm_pager_t, vm_offset_t, boolean_t)); -void vm_object_shadow __P((vm_object_t *, - vm_offset_t *, vm_size_t)); -void vm_object_terminate __P((vm_object_t)); -#endif -#endif /* UVM */ #endif /* _VM_OBJECT_ */ |