sys/vm/vm_kern.c

147 	vm_offset_t addr;
150 	if (vmem_alloc(kernel_arena, size, M_BESTFIT | M_NOWAIT, &addr))
153 	return (addr);
166 kva_free(vm_offset_t addr, vm_size_t size)
170 	vmem_free(kernel_arena, addr, size);
216 	vm_offset_t addr, i, offset;
224 	if (vmem_alloc(vmem, size, M_BESTFIT | flags, &addr))
226 	offset = addr - VM_MIN_KERNEL_ADDRESS;
235 			kmem_unback(object, addr, i);
236 			vmem_free(vmem, addr, size);
245 		pmap_enter(kernel_pmap, addr + i, m, prot,
249 	return (addr);
266 	vm_offset_t addr;
271 		addr = kmem_alloc_attr_domain(domain, size, flags, low, high,
273 		if (addr != 0)
277 	return (addr);
295 	vm_offset_t addr, offset, tmp;
303 	if (vmem_alloc(vmem, size, flags | M_BESTFIT, &addr))
305 	offset = addr - VM_MIN_KERNEL_ADDRESS;
313 		vmem_free(vmem, addr, size);
320 	tmp = addr;
330 	return (addr);
348 	vm_offset_t addr;
353 		addr = kmem_alloc_contig_domain(domain, size, flags, low, high,
355 		if (addr != 0)
359 	return (addr);
404 	vm_offset_t addr;
412 	if (vmem_alloc(arena, size, flags | M_BESTFIT, &addr))
415 	rv = kmem_back_domain(domain, kernel_object, addr, size, flags);
417 		vmem_free(arena, addr, size);
420 	return (addr);
434 	vm_offset_t addr;
439 		addr = kmem_malloc_domain(domain, size, flags);
440 		if (addr != 0)
444 	return (addr);
454 kmem_back_domain(int domain, vm_object_t object, vm_offset_t addr,
465 	offset = addr - VM_MIN_KERNEL_ADDRESS;
489 			kmem_unback(object, addr, i);
500 		pmap_enter(kernel_pmap, addr + i, m, prot,
516 kmem_back(vm_object_t object, vm_offset_t addr, vm_size_t size, int flags)
524 	for (start = addr, end = addr + size; addr < end; addr = next) {
530 			domain = (addr >> KVA_QUANTUM_SHIFT) % vm_ndomains;
533 			next = roundup2(addr + 1, KVA_QUANTUM);
540 		rv = kmem_back_domain(domain, object, addr, next - addr, flags);
542 			kmem_unback(object, start, addr - start);
559 _kmem_unback(vm_object_t object, vm_offset_t addr, vm_size_t size)
571 	pmap_remove(kernel_pmap, addr, addr + size);
572 	offset = addr - VM_MIN_KERNEL_ADDRESS;
593 kmem_unback(vm_object_t object, vm_offset_t addr, vm_size_t size)
596 	(void)_kmem_unback(object, addr, size);
606 kmem_free(vm_offset_t addr, vm_size_t size)
611 	arena = _kmem_unback(kernel_object, addr, size);
613 		vmem_free(arena, addr, size);
627 	vm_offset_t addr;
639 		addr = vm_map_findspace(map, vm_map_min(map), size);
640 		if (addr + size <= vm_map_max(map))
651 	vm_map_insert(map, NULL, 0, addr, addr + size, VM_PROT_RW, VM_PROT_RW,
654 	return (addr);
664 kmap_free_wakeup(vm_map_t map, vm_offset_t addr, vm_size_t size)
668 	(void) vm_map_delete(map, trunc_page(addr), round_page(addr + size));
679 	vm_offset_t addr, i;
687 	addr = kva_alloc(ZERO_REGION_SIZE);
693 		pmap_qenter(addr + i, &m, 1);
694 	pmap_protect(kernel_pmap, addr, addr + ZERO_REGION_SIZE, VM_PROT_READ);
696 	zero_region = (const void *)addr;
705 	vm_offset_t addr;
711 	addr = vm_map_min(kernel_map);
712 	result = vm_map_find(kernel_map, NULL, 0, &addr, size, 0,
717 	*addrp = addr;