1 /* 2 * Copyright (c) 2021 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #ifndef __VM_RECLAIM_INTERNAL__ 30 #define __VM_RECLAIM_INTERNAL__ 31 32 #if CONFIG_DEFERRED_RECLAIM 33 34 #include <mach/mach_types.h> 35 #include <mach/vm_reclaim.h> 36 #include <sys/cdefs.h> 37 #include <vm/vm_reclaim_xnu.h> 38 39 #if MACH_KERNEL_PRIVATE 40 41 mach_error_t vm_deferred_reclamation_buffer_allocate_internal( 42 task_t task, 43 mach_vm_address_ut *address, 44 uint64_t *sampling_period, 45 mach_vm_reclaim_count_t len, 46 mach_vm_reclaim_count_t max_len); 47 48 kern_return_t vm_deferred_reclamation_buffer_flush_internal( 49 task_t task, 50 mach_vm_reclaim_count_t max_entries_to_reclaim, 51 mach_vm_size_t *bytes_reclaimed_out); 52 53 mach_error_t vm_deferred_reclamation_update_accounting_internal( 54 task_t task, uint64_t *bytes_reclaimed_out); 55 56 /* 57 * Resize the reclaim buffer for a given task 58 */ 59 kern_return_t vm_deferred_reclamation_buffer_resize_internal( 60 task_t task, 61 mach_vm_reclaim_count_t len, 62 mach_vm_size_t *bytes_reclaimed_out); 63 64 kern_return_t vm_deferred_reclamation_buffer_query_internal( 65 task_t task, 66 mach_vm_address_ut *addr_out_ut, 67 mach_vm_size_ut *size_out_ut); 68 69 void vm_deferred_reclamation_buffer_lock(vm_deferred_reclamation_metadata_t metadata); 70 void vm_deferred_reclamation_buffer_unlock(vm_deferred_reclamation_metadata_t metadata); 71 72 #if DEVELOPMENT || DEBUG 73 /* 74 * Testing helpers 75 */ 76 bool vm_deferred_reclamation_block_until_task_has_been_reclaimed(task_t task); 77 #endif /* DEVELOPMENT || DEBUG */ 78 79 #endif /* MACH_KERNEL_PRIVATE */ 80 #endif /* CONFIG_DEFERRED_RECLAIM */ 81 #endif /*__VM_RECLAIM_INTERNAL__ */ 82