/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 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
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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.
+ *
+ * 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
* 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_PAGEOUT_H_
#define _VM_VM_PAGEOUT_H_
+#ifdef KERNEL_PRIVATE
+
+#include <mach/mach_types.h>
#include <mach/boolean.h>
#include <mach/machine/vm_types.h>
-#include <vm/vm_object.h>
-#include <vm/vm_page.h>
+#include <mach/memory_object_types.h>
+
+#include <kern/kern_types.h>
+#include <kern/lock.h>
+extern kern_return_t vm_map_create_upl(
+ vm_map_t map,
+ vm_map_address_t offset,
+ upl_size_t *upl_size,
+ upl_t *upl,
+ upl_page_info_array_t page_list,
+ unsigned int *count,
+ int *flags);
+extern ppnum_t upl_get_highest_page(
+ upl_t upl);
+#ifdef MACH_KERNEL_PRIVATE
+
+#include <vm/vm_page.h>
extern unsigned int vm_pageout_scan_event_counter;
extern unsigned int vm_zf_count;
+extern unsigned int vm_zf_queue_count;
/*
- * The following ifdef only exists because XMM must (currently)
- * be given a page at a time. This should be removed
- * in the future.
- */
-#define DATA_WRITE_MAX 16
-#define POINTER_T(copy) (pointer_t)(copy)
-
-/*
- * Exported routines.
+ * Routines exported to Mach.
*/
extern void vm_pageout(void);
-extern vm_object_t vm_pageout_object_allocate(
- vm_page_t m,
- vm_size_t size,
- vm_object_offset_t offset);
+extern kern_return_t vm_pageout_internal_start(void);
extern void vm_pageout_object_terminate(
vm_object_t object);
-extern vm_page_t vm_pageout_setup(
- vm_page_t m,
- vm_object_t new_object,
- vm_object_offset_t new_offset);
-
extern void vm_pageout_cluster(
vm_page_t m);
vm_object_t new_object,
vm_object_offset_t new_offset);
-extern void vm_pageclean_copy(
- vm_page_t m,
- vm_page_t new_m,
- vm_object_t new_object,
- vm_object_offset_t new_offset);
-
/* UPL exported routines and structures */
-#define UPL_COMPOSITE_PAGE_LIST_MAX 16
-
-
-#define upl_lock_init(object) mutex_init(&(object)->Lock, ETAP_VM_OBJ)
+#define upl_lock_init(object) mutex_init(&(object)->Lock, 0)
#define upl_lock(object) mutex_lock(&(object)->Lock)
#define upl_unlock(object) mutex_unlock(&(object)->Lock)
int flags;
vm_object_t src_object; /* object derived from */
vm_object_offset_t offset;
- vm_size_t size; /* size in bytes of the address space */
+ upl_size_t size; /* size in bytes of the address space */
vm_offset_t kaddr; /* secondary mapping in kernel */
vm_object_t map_object;
-#ifdef UBC_DEBUG
+ ppnum_t highest_page;
+#ifdef UPL_DEBUG
unsigned int ubc_alias1;
unsigned int ubc_alias2;
queue_chain_t uplq; /* List of outstanding upls on an obj */
-#endif /* UBC_DEBUG */
-
+#endif /* UPL_DEBUG */
};
-
-
/* upl struct flags */
#define UPL_PAGE_LIST_MAPPED 0x1
#define UPL_KERNEL_MAPPED 0x2
#define UPL_PAGEOUT 0x80
#define UPL_LITE 0x100
#define UPL_IO_WIRE 0x200
-
-#define UPL_PAGE_TICKET_MASK 0xF00
-#define UPL_PAGE_TICKET_SHIFT 8
-
-
+#define UPL_ACCESS_BLOCKED 0x400
+#define UPL_ENCRYPTED 0x800
+#define UPL_SHADOWED 0x1000
/* flags for upl_create flags parameter */
#define UPL_CREATE_EXTERNAL 0
#define UPL_CREATE_INTERNAL 0x1
#define UPL_CREATE_LITE 0x2
-
+extern kern_return_t vm_object_iopl_request(
+ vm_object_t object,
+ vm_object_offset_t offset,
+ upl_size_t size,
+ upl_t *upl_ptr,
+ upl_page_info_array_t user_page_list,
+ unsigned int *page_list_count,
+ int cntrl_flags);
+
+extern kern_return_t vm_object_super_upl_request(
+ vm_object_t object,
+ vm_object_offset_t offset,
+ upl_size_t size,
+ upl_size_t super_cluster,
+ upl_t *upl,
+ upl_page_info_t *user_page_list,
+ unsigned int *page_list_count,
+ int cntrl_flags);
+
+/* should be just a regular vm_map_enter() */
+extern kern_return_t vm_map_enter_upl(
+ vm_map_t map,
+ upl_t upl,
+ vm_map_offset_t *dst_addr);
+
+/* should be just a regular vm_map_remove() */
+extern kern_return_t vm_map_remove_upl(
+ vm_map_t map,
+ upl_t upl);
+
+#ifdef UPL_DEBUG
+extern kern_return_t upl_ubc_alias_set(
+ upl_t upl,
+ unsigned int alias1,
+ unsigned int alias2);
+extern int upl_ubc_alias_get(
+ upl_t upl,
+ unsigned int * al,
+ unsigned int * al2);
+#endif /* UPL_DEBUG */
/* wired page list structure */
typedef unsigned long *wpl_array_t;
+extern void vm_page_free_list(
+ register vm_page_t mem);
+extern void vm_page_free_reserve(int pages);
+
+extern void vm_pageout_throttle_down(vm_page_t page);
+extern void vm_pageout_throttle_up(vm_page_t page);
+
+/*
+ * ENCRYPTED SWAP:
+ */
+extern void upl_encrypt(
+ upl_t upl,
+ upl_offset_t crypt_offset,
+ upl_size_t crypt_size);
+extern void vm_page_encrypt(
+ vm_page_t page,
+ vm_map_offset_t kernel_map_offset);
+extern boolean_t vm_pages_encrypted; /* are there encrypted pages ? */
+extern void vm_page_decrypt(
+ vm_page_t page,
+ vm_map_offset_t kernel_map_offset);
+extern kern_return_t vm_paging_map_object(
+ vm_map_offset_t *address,
+ vm_page_t page,
+ vm_object_t object,
+ vm_object_offset_t offset,
+ vm_map_size_t *size,
+ boolean_t can_unlock_object);
+extern void vm_paging_unmap_object(
+ vm_object_t object,
+ vm_map_offset_t start,
+ vm_map_offset_t end);
+decl_simple_lock_data(extern, vm_paging_lock)
+
+/*
+ * Backing store throttle when BS is exhausted
+ */
+extern unsigned int vm_backing_store_low;
+
+#endif /* MACH_KERNEL_PRIVATE */
+
+extern void vm_countdirtypages(void);
+
+extern void vm_backing_store_disable(
+ boolean_t suspend);
+
+extern kern_return_t upl_transpose(
+ upl_t upl1,
+ upl_t upl2);
+
+#endif /* KERNEL_PRIVATE */
#endif /* _VM_VM_PAGEOUT_H_ */
projects / apple / xnu.git / blobdiff