xnu-2422.115.4.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 b76023182feb66b73e7264a732ecd9795d9e76c1..7396460b26534dd949a38f106b94d157186cf6d8 100644 (file)
--- a/osfmk/vm/vm_pageout.h
+++ b/osfmk/vm/vm_pageout.h
@@ -81,6 +81,72 @@
 
 #include <vm/vm_options.h>
 
 
 #include <vm/vm_options.h>
 

+#ifdef MACH_KERNEL_PRIVATE
+#include <vm/vm_page.h>
+#endif
+
+#include <sys/kdebug.h>
+
+#define VM_PAGE_AVAILABLE_COUNT()              ((unsigned int)(vm_page_cleaned_count))
+
+/* externally manipulated counters */
+extern unsigned int vm_pageout_cleaned_reactivated, vm_pageout_cleaned_fault_reactivated, vm_pageout_cleaned_commit_reactivated;
+
+#if CONFIG_JETSAM
+#define LATENCY_JETSAM FALSE
+#if LATENCY_JETSAM
+#define JETSAM_LATENCY_TOKEN_AGE       3000    /* 3ms */
+#define        NUM_OF_JETSAM_LATENCY_TOKENS    1000
+
+#define JETSAM_AGE_NOTIFY_CRITICAL     1500000 /* 1.5 secs */
+
+extern boolean_t       jlp_init;
+extern uint64_t        jlp_time, jlp_current;
+extern unsigned int    latency_jetsam_wakeup;
+#endif /* LATENCY_JETSAM */                            
+#endif /* CONFIG_JETSAM */
+
+#if CONFIG_FREEZE
+extern boolean_t memorystatus_freeze_enabled;
+#define VM_DYNAMIC_PAGING_ENABLED(port) ((COMPRESSED_PAGER_IS_ACTIVE || DEFAULT_FREEZER_COMPRESSED_PAGER_IS_ACTIVE) || (memorystatus_freeze_enabled == FALSE && IP_VALID(port)))
+#else
+#define VM_DYNAMIC_PAGING_ENABLED(port) (COMPRESSED_PAGER_IS_ACTIVE || IP_VALID(port))
+#endif
+
+
+extern int     vm_debug_events;
+
+#define VMF_CHECK_ZFDELAY              0x100
+#define VMF_COWDELAY                   0x101
+#define VMF_ZFDELAY                    0x102
+#define VMF_COMPRESSORDELAY            0x103
+
+#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_PAGEOUT_JETSAM              0x10A
+#define VM_PAGEOUT_PAGE_TOKEN          0x10B
+
+#define VM_UPL_PAGE_WAIT               0x120
+#define VM_IOPL_PAGE_WAIT              0x121
+#define VM_PAGE_WAIT_BLOCK             0x122
+
+#define VM_PRESSURE_EVENT              0x130
+#define VM_EXECVE                      0x131
+#define VM_WAKEUP_COMPACTOR_SWAPPER    0x132
+
+#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 void inline memoryshot(unsigned int event, unsigned int control);
+

 extern kern_return_t vm_map_create_upl(
        vm_map_t                map,
        vm_map_address_t        offset,
 extern kern_return_t vm_map_create_upl(
        vm_map_t                map,
        vm_map_address_t        offset,


@@ -96,43 +162,60 @@ extern ppnum_t upl_get_highest_page(
 extern upl_size_t upl_get_size(
        upl_t                   upl);
 
 extern upl_size_t upl_get_size(
        upl_t                   upl);
 

-#ifdef MACH_KERNEL_PRIVATE

 
 

-#include <vm/vm_page.h>
+#ifndef        MACH_KERNEL_PRIVATE
+typedef struct vm_page *vm_page_t;
+#endif

 
 

-extern unsigned int    vm_pageout_scan_event_counter;
-extern unsigned int    vm_zf_queue_count;
+extern void                vm_page_free_list(
+                            vm_page_t  mem,
+                            boolean_t  prepare_object);

 
 

+extern kern_return_t      vm_page_alloc_list(
+                            int         page_count,
+                            int                        flags,
+                            vm_page_t * list);

 
 

-#if defined(__ppc__) /* On ppc, vm statistics are still 32-bit */
+extern void               vm_page_set_offset(vm_page_t page, vm_object_offset_t offset);
+extern vm_object_offset_t vm_page_get_offset(vm_page_t page);
+extern ppnum_t            vm_page_get_phys_page(vm_page_t page);
+extern vm_page_t          vm_page_get_next(vm_page_t page);

 
 

-extern unsigned int    vm_zf_count;
+extern kern_return_t   mach_vm_pressure_level_monitor(boolean_t wait_for_pressure, unsigned int *pressure_level);

 
 

-#define VM_ZF_COUNT_INCR()                             \
-       MACRO_BEGIN                                     \
-       OSAddAtomic(1, (SInt32 *) &vm_zf_count);        \
-       MACRO_END                                       \
+#ifdef MACH_KERNEL_PRIVATE

 
 

-#define VM_ZF_COUNT_DECR()                             \
-       MACRO_BEGIN                                     \
-       OSAddAtomic(-1, (SInt32 *) &vm_zf_count);       \
-       MACRO_END                                       \
+#include <vm/vm_page.h>

 
 

-#else /* !(defined(__ppc__)) */
+extern unsigned int    vm_pageout_scan_event_counter;
+extern unsigned int    vm_page_anonymous_count;

 
 

-extern uint64_t        vm_zf_count;

 
 

-#define VM_ZF_COUNT_INCR()                             \
-       MACRO_BEGIN                                     \
-       OSAddAtomic64(1, (SInt64 *) &vm_zf_count);      \
-       MACRO_END                                       \
+/*
+ * must hold the page queues lock to
+ * manipulate this structure
+ */
+struct vm_pageout_queue {
+        queue_head_t   pgo_pending;    /* laundry pages to be processed by pager's iothread */
+        unsigned int   pgo_laundry;    /* current count of laundry pages on queue or in flight */
+        unsigned int   pgo_maxlaundry;
+       uint64_t        pgo_tid;        /* thread ID of I/O thread that services this queue */
+       uint8_t         pgo_lowpriority; /* iothread is set to use low priority I/O */
+
+        unsigned int   pgo_idle:1,     /* iothread is blocked waiting for work to do */
+                       pgo_busy:1,     /* iothread is currently processing request from pgo_pending */
+                       pgo_throttled:1,/* vm_pageout_scan thread needs a wakeup when pgo_laundry drops */
+                       pgo_draining:1,
+                       pgo_inited:1,
+                       :0;
+};
+
+#define VM_PAGE_Q_THROTTLED(q)         \
+        ((q)->pgo_laundry >= (q)->pgo_maxlaundry)

 
 

-#define VM_ZF_COUNT_DECR()                             \
-       MACRO_BEGIN                                     \
-       OSAddAtomic64(-1, (SInt64 *) &vm_zf_count);     \
-       MACRO_END                                       \
+extern struct  vm_pageout_queue        vm_pageout_queue_internal;
+extern struct  vm_pageout_queue        vm_pageout_queue_external;

 
 

-#endif /* !(defined(__ppc__)) */

 
 /*
  *     Routines exported to Mach.
 
 /*
  *     Routines exported to Mach.


@@ -145,7 +228,8 @@ extern void         vm_pageout_object_terminate(
                                        vm_object_t     object);
 
 extern void            vm_pageout_cluster(
                                        vm_object_t     object);
 
 extern void            vm_pageout_cluster(

-                                       vm_page_t       m);
+                                       vm_page_t       m,
+                                       boolean_t       pageout);

 
 extern void            vm_pageout_initialize_page(
                                        vm_page_t       m);
 
 extern void            vm_pageout_initialize_page(
                                        vm_page_t       m);


@@ -205,6 +289,7 @@ struct ucd {
 struct upl {
        decl_lck_mtx_data(,     Lock)   /* Synchronization */
        int             ref_count;
 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;
        int             flags;
        vm_object_t     src_object; /* object derived from */
        vm_object_offset_t offset;


@@ -243,6 +328,8 @@ struct upl {
 #define UPL_SHADOWED           0x1000
 #define UPL_KERNEL_OBJECT      0x2000
 #define UPL_VECTOR             0x4000
 #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
 
 /* flags for upl_create flags parameter */
 #define UPL_CREATE_EXTERNAL    0


@@ -262,6 +349,12 @@ extern void vector_upl_get_iostate_byindex(upl_t, uint32_t, upl_offset_t*, upl_s
 extern upl_t vector_upl_subupl_byindex(upl_t , uint32_t);
 extern upl_t vector_upl_subupl_byoffset(upl_t , upl_offset_t*, upl_size_t*);
 
 extern upl_t vector_upl_subupl_byindex(upl_t , uint32_t);
 extern upl_t vector_upl_subupl_byoffset(upl_t , upl_offset_t*, upl_size_t*);
 

+extern void vm_object_set_pmap_cache_attr(
+               vm_object_t             object,
+               upl_page_info_array_t   user_page_list,
+               unsigned int            num_pages,
+               boolean_t               batch_pmap_op);
+

 extern kern_return_t vm_object_iopl_request(
        vm_object_t             object,
        vm_object_offset_t      offset,
 extern kern_return_t vm_object_iopl_request(
        vm_object_t             object,
        vm_object_offset_t      offset,


@@ -295,10 +388,6 @@ extern kern_return_t vm_map_remove_upl(
 /* wired  page list structure */
 typedef uint32_t *wpl_array_t;
 
 /* wired  page list structure */
 typedef uint32_t *wpl_array_t;
 

-extern void vm_page_free_list(
-       vm_page_t       mem,
-       boolean_t       prepare_object);
-        

 extern void vm_page_free_reserve(int pages);
 
 extern void vm_pageout_throttle_down(vm_page_t page);
 extern void vm_page_free_reserve(int pages);
 
 extern void vm_pageout_throttle_down(vm_page_t page);


@@ -319,13 +408,14 @@ 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_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_page_t               page,
        vm_object_t             object,
        vm_object_offset_t      offset,

-       vm_map_size_t           *size,

        vm_prot_t               protection,
        vm_prot_t               protection,

-       boolean_t               can_unlock_object);
+       boolean_t               can_unlock_object,
+       vm_map_size_t           *size,          /* IN/OUT */
+       vm_map_offset_t         *address,       /* OUT */
+       boolean_t               *need_unmap);   /* OUT */

 extern void vm_paging_unmap_object(
        vm_object_t             object,
        vm_map_offset_t         start,
 extern void vm_paging_unmap_object(
        vm_object_t             object,
        vm_map_offset_t         start,


@@ -337,10 +427,13 @@ decl_simple_lock_data(extern, vm_paging_lock)
  */
 extern unsigned int    vm_backing_store_low;
 
  */
 extern unsigned int    vm_backing_store_low;
 

-extern void vm_pageout_queue_steal(
+extern void vm_pageout_steal_laundry(

        vm_page_t page, 
        boolean_t queues_locked);
        
        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
 #endif  /* MACH_KERNEL_PRIVATE */
 
 #if UPL_DEBUG


@@ -371,7 +464,7 @@ extern kern_return_t mach_vm_pressure_monitor(
 
 extern kern_return_t
 vm_set_buffer_cleanup_callout(
 
 extern kern_return_t
 vm_set_buffer_cleanup_callout(

-       boolean_t       (*func)(void));
+       boolean_t       (*func)(int));

 
 struct vm_page_stats_reusable {
        SInt32          reusable_count;
 
 struct vm_page_stats_reusable {
        SInt32          reusable_count;


@@ -390,9 +483,34 @@ struct vm_page_stats_reusable {
        uint64_t        reuse_pages_failure;
        uint64_t        can_reuse_success;
        uint64_t        can_reuse_failure;
        uint64_t        reuse_pages_failure;
        uint64_t        can_reuse_success;
        uint64_t        can_reuse_failure;

+       uint64_t        reusable_reclaimed;

 };
 extern struct vm_page_stats_reusable vm_page_stats_reusable;
        
 };
 extern struct vm_page_stats_reusable vm_page_stats_reusable;
        

+extern int hibernate_flush_memory(void);
+extern void hibernate_create_paddr_map(void);
+
+extern int vm_compressor_mode;
+extern int vm_compressor_thread_count;
+
+#define VM_PAGER_DEFAULT                               0x1     /* Use default pager. */
+#define VM_PAGER_COMPRESSOR_NO_SWAP                    0x2     /* In-core compressor only. */
+#define VM_PAGER_COMPRESSOR_WITH_SWAP                  0x4     /* In-core compressor + swap backend. */
+#define VM_PAGER_FREEZER_DEFAULT                       0x8     /* Freezer backed by default pager.*/
+#define VM_PAGER_FREEZER_COMPRESSOR_NO_SWAP            0x10    /* Freezer backed by in-core compressor only i.e. frozen data remain in-core compressed.*/
+#define VM_PAGER_FREEZER_COMPRESSOR_WITH_SWAP          0x20    /* Freezer backed by in-core compressor with swap support too.*/
+
+#define VM_PAGER_MAX_MODES                             6       /* Total number of vm compressor modes supported */
+
+#define DEFAULT_PAGER_IS_ACTIVE                ((vm_compressor_mode & VM_PAGER_DEFAULT) == VM_PAGER_DEFAULT)
+
+#define COMPRESSED_PAGER_IS_ACTIVE     (vm_compressor_mode & (VM_PAGER_COMPRESSOR_NO_SWAP | VM_PAGER_COMPRESSOR_WITH_SWAP))
+
+#define DEFAULT_FREEZER_IS_ACTIVE      ((vm_compressor_mode & VM_PAGER_FREEZER_DEFAULT) == VM_PAGER_FREEZER_DEFAULT)
+
+#define DEFAULT_FREEZER_COMPRESSED_PAGER_IS_ACTIVE             (vm_compressor_mode & (VM_PAGER_FREEZER_COMPRESSOR_NO_SWAP | VM_PAGER_FREEZER_COMPRESSOR_WITH_SWAP))
+
+

 #endif /* KERNEL_PRIVATE */
 
 #endif /* _VM_VM_PAGEOUT_H_ */
 #endif /* KERNEL_PRIVATE */
 
 #endif /* _VM_VM_PAGEOUT_H_ */