#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 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.
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);
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;
#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
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,
/* 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);
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,
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 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);
+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
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;
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 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_ */
projects / apple / xnu.git / blobdiff