xnu-1699.26.8.tar.gz

[apple/xnu.git] / osfmk / vm / vm_pageout.h

diff --git a/osfmk/vm/vm_pageout.h b/osfmk/vm/vm_pageout.h
index c296ea10db34c7eb840e6b69f29be1d3870d84a4..d8ddac6a760dd90b8f117f55d3e5271db0608059 100644 (file)
--- a/osfmk/vm/vm_pageout.h
+++ b/osfmk/vm/vm_pageout.h
@@ -85,6 +85,40 @@
 #include <vm/vm_page.h>
 #endif
 
+#include <sys/kdebug.h>
+
+#if CONFIG_FREEZE
+extern boolean_t vm_freeze_enabled;
+#define VM_DYNAMIC_PAGING_ENABLED(port) ((vm_freeze_enabled == FALSE) && IP_VALID(port))
+#else
+#define VM_DYNAMIC_PAGING_ENABLED(port) IP_VALID(port)
+#endif
+
+
+extern int     vm_debug_events;
+
+#define VMF_CHECK_ZFDELAY      0x100
+#define VMF_COWDELAY           0x101
+#define VMF_ZFDELAY            0x102
+
+#define VM_PAGEOUT_SCAN                0x104
+#define VM_PAGEOUT_BALANCE     0x105
+#define VM_PAGEOUT_FREELIST    0x106
+#define VM_PAGEOUT_PURGEONE    0x107
+#define VM_PAGEOUT_CACHE_EVICT 0x108
+#define VM_PAGEOUT_THREAD_BLOCK        0x109
+
+#define VM_UPL_PAGE_WAIT       0x120
+#define VM_IOPL_PAGE_WAIT      0x121
+
+#define VM_DEBUG_EVENT(name, event, control, arg1, arg2, arg3, arg4)   \
+       MACRO_BEGIN                                             \
+       if (vm_debug_events) {                                  \
+               KERNEL_DEBUG_CONSTANT((MACHDBG_CODE(DBG_MACH_VM, event)) | control, arg1, arg2, arg3, arg4, 0); \
+       }                                                       \
+       MACRO_END
+
+
 
 extern kern_return_t vm_map_create_upl(
        vm_map_t                map,
@@ -106,7 +140,6 @@ extern upl_size_t upl_get_size(
 typedef struct vm_page *vm_page_t;
 #endif
 
-
 extern void                vm_page_free_list(
                             vm_page_t  mem,
                             boolean_t  prepare_object);
@@ -129,22 +162,6 @@ extern unsigned int        vm_pageout_scan_event_counter;
 extern unsigned int    vm_zf_queue_count;
 
 
-#if defined(__ppc__) /* On ppc, vm statistics are still 32-bit */
-
-extern unsigned int    vm_zf_count;
-
-#define VM_ZF_COUNT_INCR()                             \
-       MACRO_BEGIN                                     \
-       OSAddAtomic(1, (SInt32 *) &vm_zf_count);        \
-       MACRO_END                                       \
-
-#define VM_ZF_COUNT_DECR()                             \
-       MACRO_BEGIN                                     \
-       OSAddAtomic(-1, (SInt32 *) &vm_zf_count);       \
-       MACRO_END                                       \
-
-#else /* !(defined(__ppc__)) */
-
 extern uint64_t        vm_zf_count;
 
 #define VM_ZF_COUNT_INCR()                             \
@@ -157,8 +174,6 @@ extern uint64_t     vm_zf_count;
        OSAddAtomic64(-1, (SInt64 *) &vm_zf_count);     \
        MACRO_END                                       \
 
-#endif /* !(defined(__ppc__)) */
-
 /*
  * must hold the page queues lock to
  * manipulate this structure
@@ -181,6 +196,7 @@ struct vm_pageout_queue {
 extern struct  vm_pageout_queue        vm_pageout_queue_internal;
 extern struct  vm_pageout_queue        vm_pageout_queue_external;
 
+
 /*
  *     Routines exported to Mach.
  */
@@ -252,6 +268,7 @@ struct ucd {
 struct upl {
        decl_lck_mtx_data(,     Lock)   /* Synchronization */
        int             ref_count;
+       int             ext_ref_count;
        int             flags;
        vm_object_t     src_object; /* object derived from */
        vm_object_offset_t offset;
@@ -290,6 +307,8 @@ struct upl {
 #define UPL_SHADOWED           0x1000
 #define UPL_KERNEL_OBJECT      0x2000
 #define UPL_VECTOR             0x4000
+#define UPL_SET_DIRTY          0x8000
+#define UPL_HAS_BUSY           0x10000
 
 /* flags for upl_create flags parameter */
 #define UPL_CREATE_EXTERNAL    0
@@ -384,6 +403,9 @@ extern void vm_pageout_queue_steal(
        vm_page_t page, 
        boolean_t queues_locked);
        
+extern boolean_t vm_page_is_slideable(vm_page_t m);
+
+extern kern_return_t vm_page_slide(vm_page_t page, vm_map_offset_t kernel_mapping_offset);
 #endif  /* MACH_KERNEL_PRIVATE */
 
 #if UPL_DEBUG