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31 * @(#)vm_extern.h 8.2 (Berkeley) 1/12/94
49 /* These operate on kernel virtual addresses only. */
50 vm_offset_t kva_alloc(vm_size_t);
51 void kva_free(vm_offset_t, vm_size_t);
53 /* These operate on pageable virtual addresses. */
54 vm_offset_t kmap_alloc_wait(vm_map_t, vm_size_t);
55 void kmap_free_wakeup(vm_map_t, vm_offset_t, vm_size_t);
57 /* These operate on virtual addresses backed by memory. */
58 vm_offset_t kmem_alloc_attr(vm_size_t size, int flags,
59 vm_paddr_t low, vm_paddr_t high, vm_memattr_t memattr);
60 vm_offset_t kmem_alloc_attr_domainset(struct domainset *ds, vm_size_t size,
61 int flags, vm_paddr_t low, vm_paddr_t high, vm_memattr_t memattr);
62 vm_offset_t kmem_alloc_contig(vm_size_t size, int flags,
63 vm_paddr_t low, vm_paddr_t high, u_long alignment, vm_paddr_t boundary,
64 vm_memattr_t memattr);
65 vm_offset_t kmem_alloc_contig_domainset(struct domainset *ds, vm_size_t size,
66 int flags, vm_paddr_t low, vm_paddr_t high, u_long alignment,
67 vm_paddr_t boundary, vm_memattr_t memattr);
68 vm_offset_t kmem_malloc(vm_size_t size, int flags);
69 vm_offset_t kmem_malloc_domainset(struct domainset *ds, vm_size_t size,
71 void kmem_free(vm_offset_t addr, vm_size_t size);
73 /* This provides memory for previously allocated address space. */
74 int kmem_back(vm_object_t, vm_offset_t, vm_size_t, int);
75 int kmem_back_domain(int, vm_object_t, vm_offset_t, vm_size_t, int);
76 void kmem_unback(vm_object_t, vm_offset_t, vm_size_t);
79 void kmem_bootstrap_free(vm_offset_t, vm_size_t);
80 vm_map_t kmem_suballoc(vm_map_t, vm_offset_t *, vm_offset_t *, vm_size_t,
82 void kmem_init(vm_offset_t, vm_offset_t);
83 void kmem_init_zero_region(void);
86 int kernacc(void *, int, int);
87 int useracc(void *, int, int);
88 int vm_fault(vm_map_t, vm_offset_t, vm_prot_t, int);
89 void vm_fault_copy_entry(vm_map_t, vm_map_t, vm_map_entry_t, vm_map_entry_t,
91 int vm_fault_disable_pagefaults(void);
92 void vm_fault_enable_pagefaults(int save);
93 int vm_fault_hold(vm_map_t map, vm_offset_t vaddr, vm_prot_t fault_type,
94 int fault_flags, vm_page_t *m_hold);
95 int vm_fault_quick_hold_pages(vm_map_t map, vm_offset_t addr, vm_size_t len,
96 vm_prot_t prot, vm_page_t *ma, int max_count);
97 int vm_forkproc(struct thread *, struct proc *, struct thread *,
98 struct vmspace *, int);
99 void vm_waitproc(struct proc *);
100 int vm_mmap(vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t, vm_prot_t, int,
101 objtype_t, void *, vm_ooffset_t);
102 int vm_mmap_object(vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t,
103 vm_prot_t, int, vm_object_t, vm_ooffset_t, boolean_t, struct thread *);
104 int vm_mmap_to_errno(int rv);
105 int vm_mmap_cdev(struct thread *, vm_size_t, vm_prot_t, vm_prot_t *,
106 int *, struct cdev *, struct cdevsw *, vm_ooffset_t *, vm_object_t *);
107 int vm_mmap_vnode(struct thread *, vm_size_t, vm_prot_t, vm_prot_t *, int *,
108 struct vnode *, vm_ooffset_t *, vm_object_t *, boolean_t *);
109 void vm_set_page_size(void);
110 void vm_sync_icache(vm_map_t, vm_offset_t, vm_size_t);
111 typedef int (*pmap_pinit_t)(struct pmap *pmap);
112 struct vmspace *vmspace_alloc(vm_offset_t, vm_offset_t, pmap_pinit_t);
113 struct vmspace *vmspace_fork(struct vmspace *, vm_ooffset_t *);
114 int vmspace_exec(struct proc *, vm_offset_t, vm_offset_t);
115 int vmspace_unshare(struct proc *);
116 void vmspace_exit(struct thread *);
117 struct vmspace *vmspace_acquire_ref(struct proc *);
118 void vmspace_free(struct vmspace *);
119 void vmspace_exitfree(struct proc *);
120 void vmspace_switch_aio(struct vmspace *);
121 void vnode_pager_setsize(struct vnode *, vm_ooffset_t);
122 int vslock(void *, size_t);
123 void vsunlock(void *, size_t);
124 struct sf_buf *vm_imgact_map_page(vm_object_t object, vm_ooffset_t offset);
125 void vm_imgact_unmap_page(struct sf_buf *sf);
126 void vm_thread_dispose(struct thread *td);
127 int vm_thread_new(struct thread *td, int pages);
128 u_int vm_active_count(void);
129 u_int vm_inactive_count(void);
130 u_int vm_laundry_count(void);
131 u_int vm_wait_count(void);
133 #endif /* !_VM_EXTERN_H_ */