/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
#ifndef _VM_VM_FAULT_H_
#define _VM_VM_FAULT_H_
+#include <mach/mach_types.h>
#include <mach/kern_return.h>
#include <mach/boolean.h>
#include <mach/vm_prot.h>
#include <mach/vm_param.h>
#include <mach/vm_behavior.h>
-#include <vm/vm_page.h>
-#include <vm/vm_object.h>
-#include <vm/vm_map.h>
+
+#ifdef KERNEL_PRIVATE
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_FICTITIOUS_SHORTAGE 4
#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,
+ int interruptible,
+ pmap_t pmap,
+ vm_map_offset_t pmap_addr);
+
+#ifdef MACH_KERNEL_PRIVATE
+
+#include <vm/vm_page.h>
+#include <vm/vm_object.h>
+#include <vm/vm_map.h>
extern void vm_fault_init(void);
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? */
- int interruptible,/* how may fault be interrupted */
- vm_object_offset_t lo_offset, /* Map entry start */
- vm_object_offset_t hi_offset, /* Map entry end */
- vm_behavior_t behavior, /* Expected paging behavior */
+ boolean_t caller_lookup, /* caller looked up page */
/* Modifies in place: */
vm_prot_t *protection, /* Protection for mapping */
- /* Returns: */
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...
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_map_t map,
- vm_offset_t vaddr);
+ vm_object_fault_info_t fault_info);
extern void vm_fault_cleanup(
vm_object_t object,
vm_page_t top_page);
-/*
- * Page fault handling based on vm_map (or entries therein)
- */
-
-extern kern_return_t vm_fault(
- vm_map_t map,
- vm_offset_t vaddr,
- vm_prot_t fault_type,
- boolean_t change_wiring,
- int interruptible,
- pmap_t pmap,
- vm_offset_t pmap_addr);
extern kern_return_t vm_fault_wire(
vm_map_t map,
vm_map_entry_t entry,
pmap_t pmap,
- vm_offset_t pmap_addr);
+ vm_map_offset_t pmap_addr);
extern void vm_fault_unwire(
vm_map_t map,
vm_map_entry_t entry,
boolean_t deallocate,
pmap_t pmap,
- vm_offset_t pmap_addr);
+ 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_size_t *src_size, /* INOUT */
+ 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,
+ pmap_t pmap,
+ vm_map_offset_t vaddr,
+ vm_prot_t prot,
+ vm_prot_t fault_type,
+ boolean_t wired,
+ boolean_t change_wiring,
+ boolean_t no_cache,
+ boolean_t cs_bypass,
+ boolean_t *need_retry,
+ int *type_of_fault);
+
+#endif /* MACH_KERNEL_PRIVATE */
+
+#endif /* KERNEL_PRIVATE */
+
#endif /* _VM_VM_FAULT_H_ */
projects / apple / xnu.git / blobdiff