1 /* 2 * Copyright (c) 2013 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 #ifdef XNU_KERNEL_PRIVATE 30 31 #ifndef _VM_VM_COMPRESSOR_PAGER_XNU_H_ 32 #define _VM_VM_COMPRESSOR_PAGER_XNU_H_ 33 34 #include <mach/mach_types.h> 35 #include <kern/kern_types.h> 36 #include <vm/vm_external.h> 37 38 __options_decl(vm_compressor_options_t, uint32_t, { 39 C_DONT_BLOCK = 0x00000001, 40 C_KEEP = 0x00000002, 41 C_KDP = 0x00000004, 42 C_PAGE_UNMODIFIED = 0x00000008, 43 C_KDP_MULTICPU = 0x00000020, 44 }); 45 46 extern kern_return_t vm_compressor_pager_get( 47 memory_object_t mem_obj, 48 memory_object_offset_t offset, 49 ppnum_t ppnum, 50 int *my_fault_type, 51 vm_compressor_options_t flags, 52 int *compressed_count_delta_p); 53 54 55 #if CONFIG_TRACK_UNMODIFIED_ANON_PAGES 56 extern uint64_t compressor_ro_uncompressed; 57 extern uint64_t compressor_ro_uncompressed_total_returned; 58 extern uint64_t compressor_ro_uncompressed_skip_returned; 59 extern uint64_t compressor_ro_uncompressed_get; 60 extern uint64_t compressor_ro_uncompressed_put; 61 extern uint64_t compressor_ro_uncompressed_swap_usage; 62 #endif /* CONFIG_TRACK_UNMODIFIED_ANON_PAGES */ 63 64 extern unsigned int vm_compressor_pager_get_count(memory_object_t mem_obj); 65 66 #endif /* _VM_VM_COMPRESSOR_PAGER_XNU_H_ */ 67 68 #endif /* XNU_KERNEL_PRIVATE */ 69