xnu-792.6.76.tar.gz

[apple/xnu.git] / osfmk / mach / vm_statistics.h

diff --git a/osfmk/mach/vm_statistics.h b/osfmk/mach/vm_statistics.h
index 75fd47fc0fda79d61603b986f0869b4ae0714efb..544c121ce2b8893277b579db734e48617a5ee90a 100644 (file)
--- a/osfmk/mach/vm_statistics.h
+++ b/osfmk/mach/vm_statistics.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
@@ -57,29 +57,49 @@
  *
  */
 
-#ifndef        VM_STATISTICS_H_
-#define        VM_STATISTICS_H_
+#ifndef        _MACH_VM_STATISTICS_H_
+#define        _MACH_VM_STATISTICS_H_
 
 #include <mach/machine/vm_types.h>
 
 struct vm_statistics {
-       integer_t       free_count;             /* # of pages free */
-       integer_t       active_count;           /* # of pages active */
-       integer_t       inactive_count;         /* # of pages inactive */
-       integer_t       wire_count;             /* # of pages wired down */
-       integer_t       zero_fill_count;        /* # of zero fill pages */
-       integer_t       reactivations;          /* # of pages reactivated */
-       integer_t       pageins;                /* # of pageins */
-       integer_t       pageouts;               /* # of pageouts */
-       integer_t       faults;                 /* # of faults */
-       integer_t       cow_faults;             /* # of copy-on-writes */
-       integer_t       lookups;                /* object cache lookups */
-       integer_t       hits;                   /* object cache hits */
+       natural_t       free_count;             /* # of pages free */
+       natural_t       active_count;           /* # of pages active */
+       natural_t       inactive_count;         /* # of pages inactive */
+       natural_t       wire_count;             /* # of pages wired down */
+       natural_t       zero_fill_count;        /* # of zero fill pages */
+       natural_t       reactivations;          /* # of pages reactivated */
+       natural_t       pageins;                /* # of pageins */
+       natural_t       pageouts;               /* # of pageouts */
+       natural_t       faults;                 /* # of faults */
+       natural_t       cow_faults;             /* # of copy-on-writes */
+       natural_t       lookups;                /* object cache lookups */
+       natural_t       hits;                   /* object cache hits */
+
+       natural_t       purgeable_count;        /* # of pages purgeable */
+       natural_t       purges;                 /* # of pages purged */
 };
 
 typedef struct vm_statistics   *vm_statistics_t;
 typedef struct vm_statistics   vm_statistics_data_t;
 
+struct vm_statistics_rev0 {
+       natural_t       free_count;             /* # of pages free */
+       natural_t       active_count;           /* # of pages active */
+       natural_t       inactive_count;         /* # of pages inactive */
+       natural_t       wire_count;             /* # of pages wired down */
+       natural_t       zero_fill_count;        /* # of zero fill pages */
+       natural_t       reactivations;          /* # of pages reactivated */
+       natural_t       pageins;                /* # of pageins */
+       natural_t       pageouts;               /* # of pageouts */
+       natural_t       faults;                 /* # of faults */
+       natural_t       cow_faults;             /* # of copy-on-writes */
+       natural_t       lookups;                /* object cache lookups */
+       natural_t       hits;                   /* object cache hits */
+};
+
+typedef struct vm_statistics_rev0      *vm_statistics_rev0_t;
+typedef struct vm_statistics_rev0      vm_statistics_rev0_data_t;
 
 /* included for the vm_map_page_query call */
 
@@ -88,6 +108,7 @@ typedef struct vm_statistics vm_statistics_data_t;
 #define VM_PAGE_QUERY_PAGE_REF          0x4
 #define VM_PAGE_QUERY_PAGE_DIRTY        0x8
 
+#ifdef MACH_KERNEL_PRIVATE
 
 /*
  *     Each machine dependent implementation is expected to
@@ -103,8 +124,39 @@ struct pmap_statistics {
 
 typedef struct pmap_statistics *pmap_statistics_t;
 
-#define VM_FLAGS_FIXED         0x0
-#define VM_FLAGS_ANYWHERE      0x1
+#endif /* MACH_KERNEL_PRIVATE */
+
+/*
+ * VM allocation flags:
+ * 
+ * VM_FLAGS_FIXED
+ *     (really the absence of VM_FLAGS_ANYWHERE)
+ *     Allocate new VM region at the specified virtual address, if possible.
+ * 
+ * VM_FLAGS_ANYWHERE
+ *     Allocate new VM region anywhere it would fit in the address space.
+ *
+ * VM_FLAGS_PURGABLE
+ *     Create a purgable VM object for that new VM region.
+ *
+ * VM_FLAGS_NO_PMAP_CHECK
+ *     (for DEBUG kernel config only, ignored for other configs)
+ *     Do not check that there is no stale pmap mapping for the new VM region.
+ *     This is useful for kernel memory allocations at bootstrap when building
+ *     the initial kernel address space while some memory is already in use.
+ *
+ * VM_FLAGS_OVERWRITE
+ *     The new VM region can replace existing VM regions if necessary
+ *     (to be used in combination with VM_FLAGS_FIXED).
+ */
+#define VM_FLAGS_FIXED         0x0000
+#define VM_FLAGS_ANYWHERE      0x0001
+#define VM_FLAGS_PURGABLE      0x0002
+#ifdef KERNEL_PRIVATE
+#define VM_FLAGS_NO_PMAP_CHECK 0x0004
+#endif /* KERNEL_PRIVATE */
+#define VM_FLAGS_OVERWRITE     0x0008
+
 #define VM_FLAGS_ALIAS_MASK    0xFF000000
 #define VM_GET_FLAGS_ALIAS(flags, alias)                       \
                (alias) = ((flags) & VM_FLAGS_ALIAS_MASK) >> 24 
@@ -139,7 +191,6 @@ typedef struct pmap_statistics      *pmap_statistics_t;
 #define VM_MEMORY_JAVA 44
 #define VM_MEMORY_ATS 50
 
-
 /* memory allocated by the dynamic loader for itself */
 #define VM_MEMORY_DYLD 60
 /* malloc'd memory created by dyld */
@@ -150,4 +201,5 @@ typedef struct pmap_statistics      *pmap_statistics_t;
 #define VM_MEMORY_APPLICATION_SPECIFIC_16 255
 
 #define VM_MAKE_TAG(tag) (tag<<24)
-#endif /* VM_STATISTICS_H_ */
+
+#endif /* _MACH_VM_STATISTICS_H_ */