X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b226f5e54a60dc81db17b1260381d7dbfea3cdf1..0a7de7458d150b5d4dffc935ba399be265ef0a1a:/osfmk/vm/vm_fault.h?ds=sidebyside diff --git a/osfmk/vm/vm_fault.h b/osfmk/vm/vm_fault.h index 1dc0839e7..973851680 100644 --- a/osfmk/vm/vm_fault.h +++ b/osfmk/vm/vm_fault.h @@ -2,7 +2,7 @@ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ - * + * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in @@ -11,10 +11,10 @@ * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. - * + * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. - * + * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, @@ -22,34 +22,34 @@ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. - * + * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ -/* +/* * Mach Operating System * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University * All Rights Reserved. - * + * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. - * + * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * + * * Carnegie Mellon requests users of this software to return to - * + * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 - * + * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ @@ -61,7 +61,7 @@ * Page fault handling module declarations. */ -#ifndef _VM_VM_FAULT_H_ +#ifndef _VM_VM_FAULT_H_ #define _VM_VM_FAULT_H_ #include @@ -71,36 +71,36 @@ #include #include -#ifdef KERNEL_PRIVATE +#ifdef KERNEL_PRIVATE -typedef kern_return_t vm_fault_return_t; +typedef kern_return_t vm_fault_return_t; -#define VM_FAULT_SUCCESS 0 -#define VM_FAULT_RETRY 1 -#define VM_FAULT_INTERRUPTED 2 -#define VM_FAULT_MEMORY_SHORTAGE 3 -#define VM_FAULT_MEMORY_ERROR 5 -#define VM_FAULT_SUCCESS_NO_VM_PAGE 6 /* success but no VM page */ +#define VM_FAULT_SUCCESS 0 +#define VM_FAULT_RETRY 1 +#define VM_FAULT_INTERRUPTED 2 +#define VM_FAULT_MEMORY_SHORTAGE 3 +#define VM_FAULT_MEMORY_ERROR 5 +#define VM_FAULT_SUCCESS_NO_VM_PAGE 6 /* success but no VM page */ /* * Page fault handling based on vm_map (or entries therein) */ extern kern_return_t vm_fault( - vm_map_t map, - vm_map_offset_t vaddr, - vm_prot_t fault_type, - boolean_t change_wiring, + vm_map_t map, + vm_map_offset_t vaddr, + vm_prot_t fault_type, + boolean_t change_wiring, #if XNU_KERNEL_PRIVATE - vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */ + vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */ #endif - int interruptible, - pmap_t pmap, - vm_map_offset_t pmap_addr); + int interruptible, + pmap_t pmap, + vm_map_offset_t pmap_addr); extern void vm_pre_fault(vm_map_offset_t); -#ifdef MACH_KERNEL_PRIVATE +#ifdef MACH_KERNEL_PRIVATE #include #include @@ -110,68 +110,68 @@ extern void vm_fault_init(void); /* exported kext version */ extern kern_return_t vm_fault_external( - vm_map_t map, - vm_map_offset_t vaddr, - vm_prot_t fault_type, - boolean_t change_wiring, - int interruptible, - pmap_t caller_pmap, - vm_map_offset_t caller_pmap_addr); + vm_map_t map, + vm_map_offset_t vaddr, + vm_prot_t fault_type, + boolean_t change_wiring, + int interruptible, + pmap_t caller_pmap, + vm_map_offset_t caller_pmap_addr); /* * Page fault handling based on vm_object only. */ extern vm_fault_return_t vm_fault_page( - /* Arguments: */ - vm_object_t first_object, /* Object to begin search */ - vm_object_offset_t first_offset,/* Offset into object */ - vm_prot_t fault_type, /* What access is requested */ - boolean_t must_be_resident,/* Must page be resident? */ - boolean_t caller_lookup, /* caller looked up page */ - /* Modifies in place: */ - vm_prot_t *protection, /* Protection for mapping */ - vm_page_t *result_page, /* Page found, if successful */ - /* Returns: */ - vm_page_t *top_page, /* Page in top object, if - * not result_page. */ - int *type_of_fault, /* if non-zero, return COW, zero-filled, etc... - * used by kernel trace point in vm_fault */ - /* More arguments: */ - kern_return_t *error_code, /* code if page is in error */ - boolean_t no_zero_fill, /* don't fill absent pages */ - boolean_t data_supply, /* treat as data_supply */ - vm_object_fault_info_t fault_info); + /* Arguments: */ + vm_object_t first_object, /* Object to begin search */ + vm_object_offset_t first_offset, /* Offset into object */ + vm_prot_t fault_type, /* What access is requested */ + boolean_t must_be_resident, /* Must page be resident? */ + boolean_t caller_lookup, /* caller looked up page */ + /* Modifies in place: */ + vm_prot_t *protection, /* Protection for mapping */ + vm_page_t *result_page, /* Page found, if successful */ + /* Returns: */ + vm_page_t *top_page, /* Page in top object, if + * not result_page. */ + int *type_of_fault, /* if non-zero, return COW, zero-filled, etc... + * used by kernel trace point in vm_fault */ + /* More arguments: */ + kern_return_t *error_code, /* code if page is in error */ + boolean_t no_zero_fill, /* don't fill absent pages */ + boolean_t data_supply, /* treat as data_supply */ + vm_object_fault_info_t fault_info); extern void vm_fault_cleanup( - vm_object_t object, - vm_page_t top_page); + vm_object_t object, + vm_page_t top_page); extern kern_return_t vm_fault_wire( - vm_map_t map, - vm_map_entry_t entry, - vm_prot_t prot, - vm_tag_t wire_tag, - pmap_t pmap, - vm_map_offset_t pmap_addr, - ppnum_t *physpage_p); + vm_map_t map, + vm_map_entry_t entry, + vm_prot_t prot, + vm_tag_t wire_tag, + pmap_t pmap, + vm_map_offset_t pmap_addr, + ppnum_t *physpage_p); extern void vm_fault_unwire( - vm_map_t map, - vm_map_entry_t entry, - boolean_t deallocate, - pmap_t pmap, - vm_map_offset_t pmap_addr); - -extern kern_return_t vm_fault_copy( - vm_object_t src_object, - vm_object_offset_t src_offset, - vm_map_size_t *copy_size, /* INOUT */ - vm_object_t dst_object, - vm_object_offset_t dst_offset, - vm_map_t dst_map, - vm_map_version_t *dst_version, - int interruptible); + vm_map_t map, + vm_map_entry_t entry, + boolean_t deallocate, + pmap_t pmap, + vm_map_offset_t pmap_addr); + +extern kern_return_t vm_fault_copy( + vm_object_t src_object, + vm_object_offset_t src_offset, + vm_map_size_t *copy_size, /* INOUT */ + vm_object_t dst_object, + vm_object_offset_t dst_offset, + vm_map_t dst_map, + vm_map_version_t *dst_version, + int interruptible); extern kern_return_t vm_fault_enter( vm_page_t m, @@ -181,19 +181,19 @@ extern kern_return_t vm_fault_enter( vm_prot_t fault_type, boolean_t wired, boolean_t change_wiring, - vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */ + vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */ vm_object_fault_info_t fault_info, boolean_t *need_retry, int *type_of_fault); extern vm_offset_t kdp_lightweight_fault( - vm_map_t map, - vm_offset_t cur_target_addr); + vm_map_t map, + vm_offset_t cur_target_addr); extern void vm_rtfault_record_init(void); -#endif /* MACH_KERNEL_PRIVATE */ +#endif /* MACH_KERNEL_PRIVATE */ -#endif /* KERNEL_PRIVATE */ +#endif /* KERNEL_PRIVATE */ -#endif /* _VM_VM_FAULT_H_ */ +#endif /* _VM_VM_FAULT_H_ */