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