*
* @APPLE_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.
+ * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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.
+ *
+ * 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@
*/
#include <kern/queue.h>
#include <kern/lock.h>
#include <kern/assert.h>
+#include <kern/ipc_mig.h>
+#include <kern/misc_protos.h>
#include <kern/macro_help.h>
#include <ipc/ipc_types.h>
#include <vm/pmap.h>
-#include <kern/misc_protos.h>
#if MACH_PAGEMAP
#include <vm/vm_external.h>
#endif /* MACH_PAGEMAP */
-typedef struct ipc_port * pager_request_t;
+typedef memory_object_control_t pager_request_t;
#define PAGER_REQUEST_NULL ((pager_request_t) 0)
/*
* Types defined:
*
* vm_object_t Virtual memory object.
- *
- * We use "struct ipc_port *" instead of "ipc_port_t"
- * to avoid include file circularities.
*/
typedef unsigned long long vm_object_size_t;
struct vm_object *shadow; /* My shadow */
vm_object_offset_t shadow_offset; /* Offset into shadow */
- struct ipc_port *pager; /* Where to get data */
+ memory_object_t pager; /* Where to get data */
vm_object_offset_t paging_offset; /* Offset into memory object */
pager_request_t pager_request; /* Where data comes back */
* an error rather than a
* zero filled page.
*/
- /* boolean_t */ phys_contiguous:1;
+ /* boolean_t */ phys_contiguous:1,
/* Memory is wired and
* guaranteed physically
* contiguous. However
* memory rules w.r.t pmap
* access bits.
*/
+ /* boolean_t */ nophyscache:1;
+ /* When mapped at the
+ * pmap level, don't allow
+ * primary caching. (for
+ * I/O)
+ */
request queue */
vm_object_offset_t last_alloc; /* last allocation offset */
+ vm_object_offset_t sequential; /* sequential access size */
vm_size_t cluster_size; /* size of paging cluster */
#if MACH_PAGEMAP
vm_external_map_t existence_map; /* bitmap of pages written to
* backing storage */
#endif /* MACH_PAGEMAP */
+ vm_offset_t cow_hint; /* last page present in */
+ /* shadow but not in object */
#if MACH_ASSERT
struct vm_object *paging_object; /* object which pages to be
* swapped out are temporary
* put in current object
*/
#endif
+ /* hold object lock when altering */
+ unsigned int /* cache WIMG bits */
+ wimg_bits:8, /* wimg plus some expansion*/
+ not_in_use:24;
#ifdef UBC_DEBUG
queue_head_t uplq; /* List of outstanding upls */
#endif /* UBC_DEBUG */
};
-extern
+__private_extern__
vm_object_t kernel_object; /* the single kernel object */
+__private_extern__
int vm_object_absent_max; /* maximum number of absent pages
at a time for each object */
* Declare procedures that operate on VM objects.
*/
-extern void vm_object_bootstrap(void);
+__private_extern__ void vm_object_bootstrap(void);
-extern void vm_object_init(void);
+__private_extern__ void vm_object_init(void);
-extern vm_object_t vm_object_allocate(
+__private_extern__ vm_object_t vm_object_allocate(
vm_object_size_t size);
+#if TASK_SWAPPER
+
+__private_extern__ void vm_object_res_reference(
+ vm_object_t object);
+__private_extern__ void vm_object_res_deallocate(
+ vm_object_t object);
+#define VM_OBJ_RES_INCR(object) (object)->res_count++
+#define VM_OBJ_RES_DECR(object) (object)->res_count--
+
+#else /* TASK_SWAPPER */
+
+#define VM_OBJ_RES_INCR(object)
+#define VM_OBJ_RES_DECR(object)
+#define vm_object_res_reference(object)
+#define vm_object_res_deallocate(object)
+
+#endif /* TASK_SWAPPER */
+
+#define vm_object_reference_locked(object) \
+MACRO_BEGIN \
+ vm_object_t RLObject = (object); \
+ assert((RLObject)->ref_count > 0); \
+ (RLObject)->ref_count++; \
+ vm_object_res_reference(RLObject); \
+MACRO_END
+
+
#if MACH_ASSERT
-extern void vm_object_reference(
+
+__private_extern__ void vm_object_reference(
vm_object_t object);
+
#else /* MACH_ASSERT */
+
#define vm_object_reference(object) \
MACRO_BEGIN \
- vm_object_t Object = (object); \
- if (Object) { \
- vm_object_lock(Object); \
- Object->ref_count++; \
- vm_object_res_reference(Object); \
- vm_object_unlock(Object); \
+ vm_object_t RObject = (object); \
+ if (RObject) { \
+ vm_object_lock(RObject); \
+ vm_object_reference_locked(RObject); \
+ vm_object_unlock(RObject); \
} \
MACRO_END
+
#endif /* MACH_ASSERT */
-extern void vm_object_deallocate(
+__private_extern__ void vm_object_deallocate(
vm_object_t object);
-extern void vm_object_pmap_protect(
+__private_extern__ kern_return_t vm_object_release_name(
+ vm_object_t object,
+ int flags);
+
+__private_extern__ void vm_object_pmap_protect(
vm_object_t object,
vm_object_offset_t offset,
vm_size_t size,
vm_offset_t pmap_start,
vm_prot_t prot);
-extern void vm_object_page_remove(
+__private_extern__ void vm_object_page_remove(
vm_object_t object,
vm_object_offset_t start,
vm_object_offset_t end);
-extern boolean_t vm_object_coalesce(
+__private_extern__ void vm_object_deactivate_pages(
+ vm_object_t object,
+ vm_object_offset_t offset,
+ vm_object_size_t size,
+ boolean_t kill_page);
+
+__private_extern__ boolean_t vm_object_coalesce(
vm_object_t prev_object,
vm_object_t next_object,
vm_object_offset_t prev_offset,
vm_object_size_t prev_size,
vm_object_size_t next_size);
-extern boolean_t vm_object_shadow(
+__private_extern__ boolean_t vm_object_shadow(
vm_object_t *object,
vm_object_offset_t *offset,
vm_object_size_t length);
-extern void vm_object_collapse(
- vm_object_t object);
-
-extern vm_object_t vm_object_lookup(
- ipc_port_t port);
-
-extern ipc_port_t vm_object_name(
- vm_object_t object);
+__private_extern__ void vm_object_collapse(
+ vm_object_t object,
+ vm_object_offset_t offset);
-extern boolean_t vm_object_copy_quickly(
+__private_extern__ boolean_t vm_object_copy_quickly(
vm_object_t *_object,
vm_object_offset_t src_offset,
vm_object_size_t size,
boolean_t *_src_needs_copy,
boolean_t *_dst_needs_copy);
-extern kern_return_t vm_object_copy_strategically(
+__private_extern__ kern_return_t vm_object_copy_strategically(
vm_object_t src_object,
vm_object_offset_t src_offset,
vm_object_size_t size,
vm_object_offset_t *dst_offset,
boolean_t *dst_needs_copy);
-extern kern_return_t vm_object_copy_slowly(
+__private_extern__ kern_return_t vm_object_copy_slowly(
vm_object_t src_object,
vm_object_offset_t src_offset,
vm_object_size_t size,
int interruptible,
vm_object_t *_result_object);
-extern void vm_object_pager_create(
- vm_object_t object);
+__private_extern__ vm_object_t vm_object_copy_delayed(
+ vm_object_t src_object,
+ vm_object_offset_t src_offset,
+ vm_object_size_t size);
-extern void vm_object_destroy(
- ipc_port_t pager);
-extern void vm_object_pager_wakeup(
- ipc_port_t pager);
-extern void vm_object_page_map(
+__private_extern__ kern_return_t vm_object_destroy(
+ vm_object_t object,
+ kern_return_t reason);
+
+__private_extern__ void vm_object_pager_create(
+ vm_object_t object);
+
+__private_extern__ void vm_object_page_map(
vm_object_t object,
vm_object_offset_t offset,
vm_object_size_t size,
(void *, vm_object_offset_t),
void *map_fn_data);
-#if TASK_SWAPPER
+__private_extern__ kern_return_t vm_object_upl_request(
+ vm_object_t object,
+ vm_object_offset_t offset,
+ vm_size_t size,
+ upl_t *upl,
+ upl_page_info_t *page_info,
+ unsigned int *count,
+ int flags);
+
+__private_extern__ boolean_t vm_object_sync(
+ vm_object_t object,
+ vm_object_offset_t offset,
+ vm_size_t size,
+ boolean_t should_flush,
+ boolean_t should_return);
-extern void vm_object_res_reference(
- vm_object_t object);
-extern void vm_object_res_deallocate(
- vm_object_t object);
-#define VM_OBJ_RES_INCR(object) (object)->res_count++
-#define VM_OBJ_RES_DECR(object) (object)->res_count--
+__private_extern__ kern_return_t vm_object_update(
+ vm_object_t object,
+ vm_object_offset_t offset,
+ vm_size_t size, /* should be 64 */
+ memory_object_return_t should_return,
+ int flags,
+ vm_prot_t prot);
-#else /* TASK_SWAPPER */
+__private_extern__ kern_return_t vm_object_lock_request(
+ vm_object_t object,
+ vm_object_offset_t offset,
+ vm_object_size_t size,
+ memory_object_return_t should_return,
+ int flags,
+ vm_prot_t prot);
-#define VM_OBJ_RES_INCR(object)
-#define VM_OBJ_RES_DECR(object)
-#define vm_object_res_reference(object)
-#define vm_object_res_deallocate(object)
-#endif /* TASK_SWAPPER */
-extern vm_object_t vm_object_enter(
- ipc_port_t pager,
+__private_extern__ vm_object_t vm_object_enter(
+ memory_object_t pager,
vm_object_size_t size,
boolean_t internal,
boolean_t init,
boolean_t check_named);
-extern vm_object_t vm_object_copy_delayed(
- vm_object_t src_object,
- vm_object_offset_t src_offset,
- vm_object_size_t size);
-
-
/*
* Event waiting handling
*/
#define VM_OBJECT_EVENT_CACHING 7
#define vm_object_assert_wait(object, event, interruptible) \
- MACRO_BEGIN \
- (object)->all_wanted |= 1 << (event); \
- assert_wait((event_t)((vm_offset_t)(object)+(event)),(interruptible)); \
- MACRO_END
+ (((object)->all_wanted |= 1 << (event)), \
+ assert_wait((event_t)((vm_offset_t)(object)+(event)),(interruptible)))
#define vm_object_wait(object, event, interruptible) \
- MACRO_BEGIN \
- vm_object_assert_wait((object),(event),(interruptible)); \
- vm_object_unlock(object); \
- thread_block((void (*)(void)) 0); \
- MACRO_END
+ (vm_object_assert_wait((object),(event),(interruptible)), \
+ vm_object_unlock(object), \
+ thread_block(THREAD_CONTINUE_NULL)) \
+
+#define thread_sleep_vm_object(object, event, interruptible) \
+ thread_sleep_mutex((event_t)(event), &(object)->Lock, (interruptible))
+
+#define vm_object_sleep(object, event, interruptible) \
+ (((object)->all_wanted |= 1 << (event)), \
+ thread_sleep_vm_object((object), \
+ ((vm_offset_t)(object)+(event)), (interruptible)))
#define vm_object_wakeup(object, event) \
MACRO_BEGIN \
#define vm_object_paging_wait(object, interruptible) \
MACRO_BEGIN \
while ((object)->paging_in_progress != 0) { \
- vm_object_wait( (object), \
+ wait_result_t _wr; \
+ \
+ _wr = vm_object_sleep((object), \
VM_OBJECT_EVENT_PAGING_IN_PROGRESS, \
(interruptible)); \
- vm_object_lock(object); \
\
- /*XXX if ((interruptible) && */ \
- /*XXX (current_thread()->wait_result != THREAD_AWAKENED))*/ \
+ /*XXX if ((interruptible) && (_wr != THREAD_AWAKENED))*/\
/*XXX break; */ \
} \
MACRO_END
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