#include <debug.h>
#include <libkern/OSAtomic.h>
+#include <libkern/OSDebug.h>
#include <mach/clock_types.h>
#include <mach/vm_prot.h>
#include <mach/sdt.h>
#include <kern/counters.h>
#include <kern/sched_prim.h>
+#include <kern/policy_internal.h>
#include <kern/task.h>
#include <kern/thread.h>
#include <kern/kalloc.h>
#include <kern/zalloc.h>
#include <kern/xpr.h>
+#include <kern/ledger.h>
#include <vm/pmap.h>
#include <vm/vm_init.h>
#include <vm/vm_map.h>
#include <vm/vm_kern.h> /* kernel_memory_allocate() */
#include <kern/misc_protos.h>
#include <zone_debug.h>
+#include <mach_debug/zone_info.h>
#include <vm/cpm.h>
#include <pexpert/pexpert.h>
#include <vm/vm_purgeable_internal.h>
#include <vm/vm_compressor.h>
+#if CONFIG_PHANTOM_CACHE
+#include <vm/vm_phantom_cache.h>
+#endif
+
#include <IOKit/IOHibernatePrivate.h>
#include <sys/kdebug.h>
+
+char vm_page_inactive_states[VM_PAGE_Q_STATE_ARRAY_SIZE];
+char vm_page_pageable_states[VM_PAGE_Q_STATE_ARRAY_SIZE];
+char vm_page_non_speculative_pageable_states[VM_PAGE_Q_STATE_ARRAY_SIZE];
+char vm_page_active_or_inactive_states[VM_PAGE_Q_STATE_ARRAY_SIZE];
+
+#if CONFIG_SECLUDED_MEMORY
+struct vm_page_secluded_data vm_page_secluded;
+#endif /* CONFIG_SECLUDED_MEMORY */
+
boolean_t hibernate_cleaning_in_progress = FALSE;
boolean_t vm_page_free_verify = TRUE;
static void vm_page_free_prepare(vm_page_t page);
static vm_page_t vm_page_grab_fictitious_common(ppnum_t phys_addr);
+static void vm_tag_init(void);
-
+uint64_t vm_min_kernel_and_kext_address = VM_MIN_KERNEL_AND_KEXT_ADDRESS;
+uint32_t vm_packed_from_vm_pages_array_mask = VM_PACKED_FROM_VM_PAGES_ARRAY;
+uint32_t vm_packed_pointer_shift = VM_PACKED_POINTER_SHIFT;
/*
* Associated with page of user-allocatable memory is a
* or VP, table.]
*/
typedef struct {
- vm_page_t pages;
+ vm_page_packed_t page_list;
#if MACH_PAGE_HASH_STATS
int cur_count; /* current count */
int hi_count; /* high water mark */
unsigned int vm_page_bucket_lock_count = 0; /* How big is array of locks? */
lck_spin_t *vm_page_bucket_locks;
+lck_spin_t vm_objects_wired_lock;
+lck_spin_t vm_allocation_sites_lock;
+
+#if VM_PAGE_BUCKETS_CHECK
+boolean_t vm_page_buckets_check_ready = FALSE;
+#if VM_PAGE_FAKE_BUCKETS
+vm_page_bucket_t *vm_page_fake_buckets; /* decoy buckets */
+vm_map_offset_t vm_page_fake_buckets_start, vm_page_fake_buckets_end;
+#endif /* VM_PAGE_FAKE_BUCKETS */
+#endif /* VM_PAGE_BUCKETS_CHECK */
+
#if MACH_PAGE_HASH_STATS
struct vm_page vm_page_template;
vm_page_t vm_pages = VM_PAGE_NULL;
+vm_page_t vm_page_array_beginning_addr;
+vm_page_t vm_page_array_ending_addr;
+
unsigned int vm_pages_count = 0;
ppnum_t vm_page_lowest = 0;
unsigned int vm_colors;
unsigned int vm_color_mask; /* mask is == (vm_colors-1) */
unsigned int vm_cache_geometry_colors = 0; /* set by hw dependent code during startup */
-queue_head_t vm_page_queue_free[MAX_COLORS];
+unsigned int vm_free_magazine_refill_limit = 0;
+
+
+struct vm_page_queue_free_head {
+ vm_page_queue_head_t qhead;
+} __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT)));
+
+struct vm_page_queue_free_head vm_page_queue_free[MAX_COLORS];
+
+
unsigned int vm_page_free_wanted;
unsigned int vm_page_free_wanted_privileged;
+#if CONFIG_SECLUDED_MEMORY
+unsigned int vm_page_free_wanted_secluded;
+#endif /* CONFIG_SECLUDED_MEMORY */
unsigned int vm_page_free_count;
-unsigned int vm_page_fictitious_count;
-
-unsigned int vm_page_free_count_minimum; /* debugging */
/*
* Occasionally, the virtual memory system uses
* These page structures are allocated the way
* most other kernel structures are.
*/
+zone_t vm_page_array_zone;
zone_t vm_page_zone;
vm_locks_array_t vm_page_locks;
decl_lck_mtx_data(,vm_page_alloc_lock)
* pageout daemon often assignes a higher
* importance to anonymous pages (less likely to pick)
*/
-queue_head_t vm_page_queue_active;
-queue_head_t vm_page_queue_inactive;
-queue_head_t vm_page_queue_anonymous; /* inactive memory queue for anonymous pages */
-queue_head_t vm_page_queue_throttled;
+vm_page_queue_head_t vm_page_queue_active __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT)));
+vm_page_queue_head_t vm_page_queue_inactive __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT)));
+#if CONFIG_SECLUDED_MEMORY
+vm_page_queue_head_t vm_page_queue_secluded __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT)));
+#endif /* CONFIG_SECLUDED_MEMORY */
+vm_page_queue_head_t vm_page_queue_anonymous __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT))); /* inactive memory queue for anonymous pages */
+vm_page_queue_head_t vm_page_queue_throttled __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT)));
+
+queue_head_t vm_objects_wired;
+
+#if CONFIG_BACKGROUND_QUEUE
+vm_page_queue_head_t vm_page_queue_background __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT)));
+uint32_t vm_page_background_limit;
+uint32_t vm_page_background_target;
+uint32_t vm_page_background_count;
+uint64_t vm_page_background_promoted_count;
+
+uint32_t vm_page_background_internal_count;
+uint32_t vm_page_background_external_count;
+
+uint32_t vm_page_background_mode;
+uint32_t vm_page_background_exclude_external;
+#endif
unsigned int vm_page_active_count;
unsigned int vm_page_inactive_count;
+#if CONFIG_SECLUDED_MEMORY
+unsigned int vm_page_secluded_count;
+unsigned int vm_page_secluded_count_free;
+unsigned int vm_page_secluded_count_inuse;
+#endif /* CONFIG_SECLUDED_MEMORY */
unsigned int vm_page_anonymous_count;
unsigned int vm_page_throttled_count;
unsigned int vm_page_speculative_count;
+
unsigned int vm_page_wire_count;
+unsigned int vm_page_stolen_count;
unsigned int vm_page_wire_count_initial;
+unsigned int vm_page_pages_initial;
unsigned int vm_page_gobble_count = 0;
-unsigned int vm_page_wire_count_warning = 0;
-unsigned int vm_page_gobble_count_warning = 0;
+
+#define VM_PAGE_WIRE_COUNT_WARNING 0
+#define VM_PAGE_GOBBLE_COUNT_WARNING 0
unsigned int vm_page_purgeable_count = 0; /* # of pages purgeable now */
unsigned int vm_page_purgeable_wired_count = 0; /* # of purgeable pages that are wired now */
uint64_t vm_page_purged_count = 0; /* total count of purged pages */
+unsigned int vm_page_xpmapped_external_count = 0;
unsigned int vm_page_external_count = 0;
unsigned int vm_page_internal_count = 0;
unsigned int vm_page_pageable_external_count = 0;
unsigned int vm_page_speculative_used = 0;
#endif
-queue_head_t vm_page_queue_cleaned;
+vm_page_queue_head_t vm_page_queue_cleaned __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT)));
unsigned int vm_page_cleaned_count = 0;
unsigned int vm_pageout_enqueued_cleaned = 0;
unsigned int vm_page_free_target = 0;
unsigned int vm_page_free_min = 0;
unsigned int vm_page_throttle_limit = 0;
-uint32_t vm_page_creation_throttle = 0;
unsigned int vm_page_inactive_target = 0;
+#if CONFIG_SECLUDED_MEMORY
+unsigned int vm_page_secluded_target = 0;
+#endif /* CONFIG_SECLUDED_MEMORY */
unsigned int vm_page_anonymous_min = 0;
unsigned int vm_page_inactive_min = 0;
unsigned int vm_page_free_reserved = 0;
void
vm_set_page_size(void)
{
- page_mask = page_size - 1;
+ page_size = PAGE_SIZE;
+ page_mask = PAGE_MASK;
+ page_shift = PAGE_SHIFT;
if ((page_mask & page_size) != 0)
panic("vm_set_page_size: page size not a power of two");
break;
}
+#define COLOR_GROUPS_TO_STEAL 4
+
/* Called once during statup, once the cache geometry is known.
*/
vm_colors = n;
vm_color_mask = n - 1;
+
+ vm_free_magazine_refill_limit = vm_colors * COLOR_GROUPS_TO_STEAL;
}
lq = &t_local_q[i].vpl_un.vpl;
VPL_LOCK_INIT(lq, &vm_page_lck_grp_local, &vm_page_lck_attr);
- queue_init(&lq->vpl_queue);
+ vm_page_queue_init(&lq->vpl_queue);
lq->vpl_count = 0;
lq->vpl_internal_count = 0;
lq->vpl_external_count = 0;
vm_offset_t *startp,
vm_offset_t *endp)
{
- register vm_page_t m;
+ vm_page_t m;
unsigned int i;
unsigned int log1;
unsigned int log2;
m = &vm_page_template;
bzero(m, sizeof (*m));
- m->pageq.next = NULL;
- m->pageq.prev = NULL;
- m->listq.next = NULL;
- m->listq.prev = NULL;
- m->next = VM_PAGE_NULL;
+#if CONFIG_BACKGROUND_QUEUE
+ m->vm_page_backgroundq.next = 0;
+ m->vm_page_backgroundq.prev = 0;
+ m->vm_page_in_background = FALSE;
+ m->vm_page_on_backgroundq = FALSE;
+#endif
+
+ VM_PAGE_ZERO_PAGEQ_ENTRY(m);
+ m->listq.next = 0;
+ m->listq.prev = 0;
+ m->next_m = 0;
- m->object = VM_OBJECT_NULL; /* reset later */
+ m->vm_page_object = 0; /* reset later */
m->offset = (vm_object_offset_t) -1; /* reset later */
m->wire_count = 0;
- m->local = FALSE;
- m->inactive = FALSE;
- m->active = FALSE;
- m->pageout_queue = FALSE;
- m->speculative = FALSE;
+ m->vm_page_q_state = VM_PAGE_NOT_ON_Q;
m->laundry = FALSE;
- m->free = FALSE;
m->reference = FALSE;
m->gobbled = FALSE;
m->private = FALSE;
- m->throttled = FALSE;
m->__unused_pageq_bits = 0;
- m->phys_page = 0; /* reset later */
-
+ VM_PAGE_SET_PHYS_PAGE(m, 0); /* reset later */
m->busy = TRUE;
m->wanted = FALSE;
m->tabled = FALSE;
+ m->hashed = FALSE;
m->fictitious = FALSE;
m->pmapped = FALSE;
m->wpmapped = FALSE;
- m->pageout = FALSE;
+ m->free_when_done = FALSE;
m->absent = FALSE;
m->error = FALSE;
m->dirty = FALSE;
m->encrypted_cleaning = FALSE;
m->cs_validated = FALSE;
m->cs_tainted = FALSE;
+ m->cs_nx = FALSE;
m->no_cache = FALSE;
m->reusable = FALSE;
m->slid = FALSE;
- m->was_dirty = FALSE;
m->xpmapped = FALSE;
- m->compressor = FALSE;
+ m->written_by_kernel = FALSE;
m->__unused_object_bits = 0;
/*
purgeable_queues[i].debug_count_objects = 0;
#endif
};
+ purgeable_nonvolatile_count = 0;
+ queue_init(&purgeable_nonvolatile_queue);
for (i = 0; i < MAX_COLORS; i++ )
- queue_init(&vm_page_queue_free[i]);
-
- queue_init(&vm_lopage_queue_free);
- queue_init(&vm_page_queue_active);
- queue_init(&vm_page_queue_inactive);
- queue_init(&vm_page_queue_cleaned);
- queue_init(&vm_page_queue_throttled);
- queue_init(&vm_page_queue_anonymous);
+ vm_page_queue_init(&vm_page_queue_free[i].qhead);
+
+ vm_page_queue_init(&vm_lopage_queue_free);
+ vm_page_queue_init(&vm_page_queue_active);
+ vm_page_queue_init(&vm_page_queue_inactive);
+#if CONFIG_SECLUDED_MEMORY
+ vm_page_queue_init(&vm_page_queue_secluded);
+#endif /* CONFIG_SECLUDED_MEMORY */
+ vm_page_queue_init(&vm_page_queue_cleaned);
+ vm_page_queue_init(&vm_page_queue_throttled);
+ vm_page_queue_init(&vm_page_queue_anonymous);
+ queue_init(&vm_objects_wired);
for ( i = 0; i <= VM_PAGE_MAX_SPECULATIVE_AGE_Q; i++ ) {
- queue_init(&vm_page_queue_speculative[i].age_q);
+ vm_page_queue_init(&vm_page_queue_speculative[i].age_q);
vm_page_queue_speculative[i].age_ts.tv_sec = 0;
vm_page_queue_speculative[i].age_ts.tv_nsec = 0;
}
+#if CONFIG_BACKGROUND_QUEUE
+ vm_page_queue_init(&vm_page_queue_background);
+
+ vm_page_background_count = 0;
+ vm_page_background_internal_count = 0;
+ vm_page_background_external_count = 0;
+ vm_page_background_promoted_count = 0;
+
+ vm_page_background_target = (unsigned int)(atop_64(max_mem) / 25);
+
+ if (vm_page_background_target > VM_PAGE_BACKGROUND_TARGET_MAX)
+ vm_page_background_target = VM_PAGE_BACKGROUND_TARGET_MAX;
+ vm_page_background_limit = vm_page_background_target + 256;
+
+ vm_page_background_mode = VM_PAGE_BG_LEVEL_1;
+ vm_page_background_exclude_external = 0;
+
+ PE_parse_boot_argn("vm_page_bg_mode", &vm_page_background_mode, sizeof(vm_page_background_mode));
+ PE_parse_boot_argn("vm_page_bg_exclude_external", &vm_page_background_exclude_external, sizeof(vm_page_background_exclude_external));
+ PE_parse_boot_argn("vm_page_bg_target", &vm_page_background_target, sizeof(vm_page_background_target));
+ PE_parse_boot_argn("vm_page_bg_limit", &vm_page_background_limit, sizeof(vm_page_background_limit));
+
+ if (vm_page_background_mode > VM_PAGE_BG_LEVEL_3)
+ vm_page_background_mode = VM_PAGE_BG_LEVEL_1;
+
+ if (vm_page_background_limit <= vm_page_background_target)
+ vm_page_background_limit = vm_page_background_target + 256;
+#endif
vm_page_free_wanted = 0;
vm_page_free_wanted_privileged = 0;
+#if CONFIG_SECLUDED_MEMORY
+ vm_page_free_wanted_secluded = 0;
+#endif /* CONFIG_SECLUDED_MEMORY */
vm_page_set_colors();
+ bzero(vm_page_inactive_states, sizeof(vm_page_inactive_states));
+ vm_page_inactive_states[VM_PAGE_ON_INACTIVE_INTERNAL_Q] = 1;
+ vm_page_inactive_states[VM_PAGE_ON_INACTIVE_EXTERNAL_Q] = 1;
+ vm_page_inactive_states[VM_PAGE_ON_INACTIVE_CLEANED_Q] = 1;
+
+ bzero(vm_page_pageable_states, sizeof(vm_page_pageable_states));
+ vm_page_pageable_states[VM_PAGE_ON_INACTIVE_INTERNAL_Q] = 1;
+ vm_page_pageable_states[VM_PAGE_ON_INACTIVE_EXTERNAL_Q] = 1;
+ vm_page_pageable_states[VM_PAGE_ON_INACTIVE_CLEANED_Q] = 1;
+ vm_page_pageable_states[VM_PAGE_ON_ACTIVE_Q] = 1;
+ vm_page_pageable_states[VM_PAGE_ON_SPECULATIVE_Q] = 1;
+ vm_page_pageable_states[VM_PAGE_ON_THROTTLED_Q] = 1;
+#if CONFIG_SECLUDED_MEMORY
+ vm_page_pageable_states[VM_PAGE_ON_SECLUDED_Q] = 1;
+#endif /* CONFIG_SECLUDED_MEMORY */
+
+ bzero(vm_page_non_speculative_pageable_states, sizeof(vm_page_non_speculative_pageable_states));
+ vm_page_non_speculative_pageable_states[VM_PAGE_ON_INACTIVE_INTERNAL_Q] = 1;
+ vm_page_non_speculative_pageable_states[VM_PAGE_ON_INACTIVE_EXTERNAL_Q] = 1;
+ vm_page_non_speculative_pageable_states[VM_PAGE_ON_INACTIVE_CLEANED_Q] = 1;
+ vm_page_non_speculative_pageable_states[VM_PAGE_ON_ACTIVE_Q] = 1;
+ vm_page_non_speculative_pageable_states[VM_PAGE_ON_THROTTLED_Q] = 1;
+#if CONFIG_SECLUDED_MEMORY
+ vm_page_non_speculative_pageable_states[VM_PAGE_ON_SECLUDED_Q] = 1;
+#endif /* CONFIG_SECLUDED_MEMORY */
+
+ bzero(vm_page_active_or_inactive_states, sizeof(vm_page_active_or_inactive_states));
+ vm_page_active_or_inactive_states[VM_PAGE_ON_INACTIVE_INTERNAL_Q] = 1;
+ vm_page_active_or_inactive_states[VM_PAGE_ON_INACTIVE_EXTERNAL_Q] = 1;
+ vm_page_active_or_inactive_states[VM_PAGE_ON_INACTIVE_CLEANED_Q] = 1;
+ vm_page_active_or_inactive_states[VM_PAGE_ON_ACTIVE_Q] = 1;
+#if CONFIG_SECLUDED_MEMORY
+ vm_page_active_or_inactive_states[VM_PAGE_ON_SECLUDED_Q] = 1;
+#endif /* CONFIG_SECLUDED_MEMORY */
+
/*
* Steal memory for the map and zone subsystems.
*/
- zone_steal_memory();
+#if CONFIG_GZALLOC
+ gzalloc_configure();
+#endif
+ kernel_debug_string_early("vm_map_steal_memory");
vm_map_steal_memory();
/*
if (vm_page_hash_mask & vm_page_bucket_count)
printf("vm_page_bootstrap: WARNING -- strange page hash\n");
+#if VM_PAGE_BUCKETS_CHECK
+#if VM_PAGE_FAKE_BUCKETS
+ /*
+ * Allocate a decoy set of page buckets, to detect
+ * any stomping there.
+ */
+ vm_page_fake_buckets = (vm_page_bucket_t *)
+ pmap_steal_memory(vm_page_bucket_count *
+ sizeof(vm_page_bucket_t));
+ vm_page_fake_buckets_start = (vm_map_offset_t) vm_page_fake_buckets;
+ vm_page_fake_buckets_end =
+ vm_map_round_page((vm_page_fake_buckets_start +
+ (vm_page_bucket_count *
+ sizeof (vm_page_bucket_t))),
+ PAGE_MASK);
+ char *cp;
+ for (cp = (char *)vm_page_fake_buckets_start;
+ cp < (char *)vm_page_fake_buckets_end;
+ cp++) {
+ *cp = 0x5a;
+ }
+#endif /* VM_PAGE_FAKE_BUCKETS */
+#endif /* VM_PAGE_BUCKETS_CHECK */
+
+ kernel_debug_string_early("vm_page_buckets");
vm_page_buckets = (vm_page_bucket_t *)
pmap_steal_memory(vm_page_bucket_count *
sizeof(vm_page_bucket_t));
+ kernel_debug_string_early("vm_page_bucket_locks");
vm_page_bucket_locks = (lck_spin_t *)
pmap_steal_memory(vm_page_bucket_lock_count *
sizeof(lck_spin_t));
for (i = 0; i < vm_page_bucket_count; i++) {
- register vm_page_bucket_t *bucket = &vm_page_buckets[i];
+ vm_page_bucket_t *bucket = &vm_page_buckets[i];
- bucket->pages = VM_PAGE_NULL;
+ bucket->page_list = VM_PAGE_PACK_PTR(VM_PAGE_NULL);
#if MACH_PAGE_HASH_STATS
bucket->cur_count = 0;
bucket->hi_count = 0;
for (i = 0; i < vm_page_bucket_lock_count; i++)
lck_spin_init(&vm_page_bucket_locks[i], &vm_page_lck_grp_bucket, &vm_page_lck_attr);
+ lck_spin_init(&vm_objects_wired_lock, &vm_page_lck_grp_bucket, &vm_page_lck_attr);
+ lck_spin_init(&vm_allocation_sites_lock, &vm_page_lck_grp_bucket, &vm_page_lck_attr);
+ vm_tag_init();
+
+#if VM_PAGE_BUCKETS_CHECK
+ vm_page_buckets_check_ready = TRUE;
+#endif /* VM_PAGE_BUCKETS_CHECK */
+
/*
* Machine-dependent code allocates the resident page table.
* It uses vm_page_init to initialize the page frames.
* to get the alignment right.
*/
+ kernel_debug_string_early("pmap_startup");
pmap_startup(&virtual_space_start, &virtual_space_end);
virtual_space_start = round_page(virtual_space_start);
virtual_space_end = trunc_page(virtual_space_end);
*/
assert((unsigned int) atop_64(max_mem) == atop_64(max_mem));
vm_page_wire_count = ((unsigned int) atop_64(max_mem)) - vm_page_free_count - vm_lopage_free_count; /* initial value */
+#if CONFIG_SECLUDED_MEMORY
+ vm_page_wire_count -= vm_page_secluded_count;
+#endif
vm_page_wire_count_initial = vm_page_wire_count;
- vm_page_free_count_minimum = vm_page_free_count;
+ vm_page_pages_initial = vm_page_pages;
printf("vm_page_bootstrap: %d free pages and %d wired pages\n",
vm_page_free_count, vm_page_wire_count);
+ kernel_debug_string_early("vm_page_bootstrap complete");
simple_lock_init(&vm_paging_lock, 0);
}
vaddr += PAGE_SIZE) {
if (!pmap_next_page_hi(&phys_page))
- panic("pmap_steal_memory");
+ panic("pmap_steal_memory() size: 0x%llx\n", (uint64_t)size);
/*
* XXX Logically, these mappings should be wired,
* Account for newly stolen memory
*/
vm_page_wire_count++;
-
+ vm_page_stolen_count++;
}
return (void *) addr;
}
+#if CONFIG_SECLUDED_MEMORY
+/* boot-args to control secluded memory */
+unsigned int secluded_mem_mb = 0; /* # of MBs of RAM to seclude */
+int secluded_for_iokit = 1; /* IOKit can use secluded memory */
+int secluded_for_apps = 1; /* apps can use secluded memory */
+int secluded_for_filecache = 2; /* filecache can use seclude memory */
+#if 11
+int secluded_for_fbdp = 0;
+#endif
+int secluded_aging_policy = SECLUDED_AGING_BEFORE_ACTIVE;
+#endif /* CONFIG_SECLUDED_MEMORY */
+
+
+
+
+void vm_page_release_startup(vm_page_t mem);
void
pmap_startup(
vm_offset_t *startp,
ppnum_t phys_page;
addr64_t tmpaddr;
+#if defined(__LP64__)
+ /*
+ * make sure we are aligned on a 64 byte boundary
+ * for VM_PAGE_PACK_PTR (it clips off the low-order
+ * 6 bits of the pointer)
+ */
+ if (virtual_space_start != virtual_space_end)
+ virtual_space_start = round_page(virtual_space_start);
+#endif
+
/*
* We calculate how many page frames we will have
* and then allocate the page structures in one chunk.
/*
* Initialize the page frames.
*/
+ kernel_debug_string_early("Initialize the page frames");
+
+ vm_page_array_beginning_addr = &vm_pages[0];
+ vm_page_array_ending_addr = &vm_pages[npages];
+
+
for (i = 0, pages_initialized = 0; i < npages; i++) {
if (!pmap_next_page(&phys_page))
break;
}
vm_pages_count = pages_initialized;
+#if defined(__LP64__)
+
+ if ((vm_page_t)(VM_PAGE_UNPACK_PTR(VM_PAGE_PACK_PTR(&vm_pages[0]))) != &vm_pages[0])
+ panic("VM_PAGE_PACK_PTR failed on &vm_pages[0] - %p", (void *)&vm_pages[0]);
+
+ if ((vm_page_t)(VM_PAGE_UNPACK_PTR(VM_PAGE_PACK_PTR(&vm_pages[vm_pages_count-1]))) != &vm_pages[vm_pages_count-1])
+ panic("VM_PAGE_PACK_PTR failed on &vm_pages[vm_pages_count-1] - %p", (void *)&vm_pages[vm_pages_count-1]);
+#endif
+ kernel_debug_string_early("page fill/release");
/*
* Check if we want to initialize pages to a known value
*/
#endif
if (fill)
kprintf("Filling vm_pages with pattern: 0x%x\n", fillval);
+
+#if CONFIG_SECLUDED_MEMORY
+ /* default: no secluded mem */
+ secluded_mem_mb = 0;
+ if (max_mem > 1*1024*1024*1024) {
+ /* default to 90MB for devices with > 1GB of RAM */
+ secluded_mem_mb = 90;
+ }
+ /* override with value from device tree, if provided */
+ PE_get_default("kern.secluded_mem_mb",
+ &secluded_mem_mb, sizeof(secluded_mem_mb));
+ /* override with value from boot-args, if provided */
+ PE_parse_boot_argn("secluded_mem_mb",
+ &secluded_mem_mb,
+ sizeof (secluded_mem_mb));
+
+ vm_page_secluded_target = (unsigned int)
+ ((secluded_mem_mb * 1024ULL * 1024ULL) / PAGE_SIZE);
+ PE_parse_boot_argn("secluded_for_iokit",
+ &secluded_for_iokit,
+ sizeof (secluded_for_iokit));
+ PE_parse_boot_argn("secluded_for_apps",
+ &secluded_for_apps,
+ sizeof (secluded_for_apps));
+ PE_parse_boot_argn("secluded_for_filecache",
+ &secluded_for_filecache,
+ sizeof (secluded_for_filecache));
+#if 11
+ PE_parse_boot_argn("secluded_for_fbdp",
+ &secluded_for_fbdp,
+ sizeof (secluded_for_fbdp));
+#endif
+ PE_parse_boot_argn("secluded_aging_policy",
+ &secluded_aging_policy,
+ sizeof (secluded_aging_policy));
+#endif /* CONFIG_SECLUDED_MEMORY */
+
// -debug code remove
if (2 == vm_himemory_mode) {
// free low -> high so high is preferred
for (i = 1; i <= pages_initialized; i++) {
- if(fill) fillPage(vm_pages[i - 1].phys_page, fillval); /* Fill the page with a know value if requested at boot */
- vm_page_release(&vm_pages[i - 1]);
+ if(fill) fillPage(VM_PAGE_GET_PHYS_PAGE(&vm_pages[i - 1]), fillval); /* Fill the page with a know value if requested at boot */
+ vm_page_release_startup(&vm_pages[i - 1]);
}
}
else
* they require several consecutive pages.
*/
for (i = pages_initialized; i > 0; i--) {
- if(fill) fillPage(vm_pages[i - 1].phys_page, fillval); /* Fill the page with a know value if requested at boot */
- vm_page_release(&vm_pages[i - 1]);
+ if(fill) fillPage(VM_PAGE_GET_PHYS_PAGE(&vm_pages[i - 1]), fillval); /* Fill the page with a know value if requested at boot */
+ vm_page_release_startup(&vm_pages[i - 1]);
}
+ VM_CHECK_MEMORYSTATUS;
+
#if 0
{
vm_page_t xx, xxo, xxl;
xxl = 0;
for( i = 0; i < vm_colors; i++ ) {
- queue_iterate(&vm_page_queue_free[i],
+ queue_iterate(&vm_page_queue_free[i].qhead,
xx,
vm_page_t,
pageq) { /* BRINGUP */
if(((j - 1) & 0xFFFF) == 0) kprintf("checking number %d of %d\n", j, vm_page_free_count);
- for(xxo = xx->pageq.next; xxo != &vm_page_queue_free[i]; xxo = xxo->pageq.next) { /* (BRINGUP) */
+ for(xxo = xx->pageq.next; xxo != &vm_page_queue_free[i].qhead; xxo = xxo->pageq.next) { /* (BRINGUP) */
k++;
if(k > l) panic("pmap_startup: too many in secondary check %d %d\n", k, l);
if((xx->phys_page & 0xFFFFFFFF) == (xxo->phys_page & 0xFFFFFFFF)) { /* (BRINGUP) */
void
vm_page_module_init(void)
{
- vm_page_zone = zinit((vm_size_t) sizeof(struct vm_page),
- 0, PAGE_SIZE, "vm pages");
+ uint64_t vm_page_zone_pages, vm_page_array_zone_data_size;
+ vm_size_t vm_page_with_ppnum_size;
+
+ vm_page_array_zone = zinit((vm_size_t) sizeof(struct vm_page),
+ 0, PAGE_SIZE, "vm pages array");
-#if ZONE_DEBUG
- zone_debug_disable(vm_page_zone);
-#endif /* ZONE_DEBUG */
+ zone_change(vm_page_array_zone, Z_CALLERACCT, FALSE);
+ zone_change(vm_page_array_zone, Z_EXPAND, FALSE);
+ zone_change(vm_page_array_zone, Z_EXHAUST, TRUE);
+ zone_change(vm_page_array_zone, Z_FOREIGN, TRUE);
+ zone_change(vm_page_array_zone, Z_GZALLOC_EXEMPT, TRUE);
+ /*
+ * Adjust zone statistics to account for the real pages allocated
+ * in vm_page_create(). [Q: is this really what we want?]
+ */
+ vm_page_array_zone->count += vm_page_pages;
+ vm_page_array_zone->sum_count += vm_page_pages;
+ vm_page_array_zone_data_size = vm_page_pages * vm_page_array_zone->elem_size;
+ vm_page_array_zone->cur_size += vm_page_array_zone_data_size;
+ vm_page_zone_pages = ((round_page(vm_page_array_zone_data_size)) / PAGE_SIZE);
+ OSAddAtomic64(vm_page_zone_pages, &(vm_page_array_zone->page_count));
+ /* since zone accounts for these, take them out of stolen */
+ VM_PAGE_MOVE_STOLEN(vm_page_zone_pages);
+
+ vm_page_with_ppnum_size = (sizeof(struct vm_page_with_ppnum) + (VM_PACKED_POINTER_ALIGNMENT-1)) & ~(VM_PACKED_POINTER_ALIGNMENT - 1);
+
+ vm_page_zone = zinit(vm_page_with_ppnum_size,
+ 0, PAGE_SIZE, "vm pages");
zone_change(vm_page_zone, Z_CALLERACCT, FALSE);
zone_change(vm_page_zone, Z_EXPAND, FALSE);
zone_change(vm_page_zone, Z_EXHAUST, TRUE);
zone_change(vm_page_zone, Z_FOREIGN, TRUE);
zone_change(vm_page_zone, Z_GZALLOC_EXEMPT, TRUE);
- /*
- * Adjust zone statistics to account for the real pages allocated
- * in vm_page_create(). [Q: is this really what we want?]
- */
- vm_page_zone->count += vm_page_pages;
- vm_page_zone->sum_count += vm_page_pages;
- vm_page_zone->cur_size += vm_page_pages * vm_page_zone->elem_size;
}
/*
pmap_clear_noencrypt(phys_page);
vm_page_pages++;
- vm_page_release(m);
+ vm_page_release(m, FALSE);
}
}
vm_object_t object,
vm_object_offset_t offset)
{
- vm_page_insert_internal(mem, object, offset, FALSE, TRUE, FALSE);
+ vm_page_insert_internal(mem, object, offset, VM_KERN_MEMORY_NONE, FALSE, TRUE, FALSE, FALSE, NULL);
+}
+
+void
+vm_page_insert_wired(
+ vm_page_t mem,
+ vm_object_t object,
+ vm_object_offset_t offset,
+ vm_tag_t tag)
+{
+ vm_page_insert_internal(mem, object, offset, tag, FALSE, TRUE, FALSE, FALSE, NULL);
}
void
vm_page_t mem,
vm_object_t object,
vm_object_offset_t offset,
+ vm_tag_t tag,
boolean_t queues_lock_held,
boolean_t insert_in_hash,
- boolean_t batch_pmap_op)
+ boolean_t batch_pmap_op,
+ boolean_t batch_accounting,
+ uint64_t *delayed_ledger_update)
{
- vm_page_bucket_t *bucket;
- lck_spin_t *bucket_lock;
- int hash_id;
+ vm_page_bucket_t *bucket;
+ lck_spin_t *bucket_lock;
+ int hash_id;
+ task_t owner;
XPR(XPR_VM_PAGE,
"vm_page_insert, object 0x%X offset 0x%X page 0x%X\n",
assert(page_aligned(offset));
- if (object == vm_submap_object) {
- /* the vm_submap_object is only a placeholder for submaps */
- panic("vm_page_insert(vm_submap_object,0x%llx)\n", offset);
- }
+ assert(!VM_PAGE_WIRED(mem) || mem->private || mem->fictitious || (tag != VM_KERN_MEMORY_NONE));
+
+ /* the vm_submap_object is only a placeholder for submaps */
+ assert(object != vm_submap_object);
vm_object_lock_assert_exclusive(object);
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock,
+ LCK_MTX_ASSERT(&vm_page_queue_lock,
queues_lock_held ? LCK_MTX_ASSERT_OWNED
: LCK_MTX_ASSERT_NOTOWNED);
-#endif /* DEBUG */
-
+ if (queues_lock_held == FALSE)
+ assert(!VM_PAGE_PAGEABLE(mem));
+
if (insert_in_hash == TRUE) {
-#if DEBUG
- if (mem->tabled || mem->object != VM_OBJECT_NULL)
+#if DEBUG || VM_PAGE_CHECK_BUCKETS
+ if (mem->tabled || mem->vm_page_object)
panic("vm_page_insert: page %p for (obj=%p,off=0x%llx) "
"already in (obj=%p,off=0x%llx)",
- mem, object, offset, mem->object, mem->offset);
+ mem, object, offset, VM_PAGE_OBJECT(mem), mem->offset);
#endif
assert(!object->internal || offset < object->vo_size);
-
- /* only insert "pageout" pages into "pageout" objects,
- * and normal pages into normal objects */
- assert(object->pageout == mem->pageout);
-
assert(vm_page_lookup(object, offset) == VM_PAGE_NULL);
/*
* Record the object/offset pair in this page
*/
- mem->object = object;
+ mem->vm_page_object = VM_PAGE_PACK_OBJECT(object);
mem->offset = offset;
+#if CONFIG_SECLUDED_MEMORY
+ if (object->eligible_for_secluded) {
+ vm_page_secluded.eligible_for_secluded++;
+ }
+#endif /* CONFIG_SECLUDED_MEMORY */
+
/*
* Insert it into the object_object/offset hash table
*/
lck_spin_lock(bucket_lock);
- mem->next = bucket->pages;
- bucket->pages = mem;
+ mem->next_m = bucket->page_list;
+ bucket->page_list = VM_PAGE_PACK_PTR(mem);
+ assert(mem == (vm_page_t)(VM_PAGE_UNPACK_PTR(bucket->page_list)));
+
#if MACH_PAGE_HASH_STATS
if (++bucket->cur_count > bucket->hi_count)
bucket->hi_count = bucket->cur_count;
#endif /* MACH_PAGE_HASH_STATS */
-
+ mem->hashed = TRUE;
lck_spin_unlock(bucket_lock);
}
/*
* Now link into the object's list of backed pages.
*/
- VM_PAGE_INSERT(mem, object);
+ vm_page_queue_enter(&object->memq, mem, vm_page_t, listq);
+ object->memq_hint = mem;
mem->tabled = TRUE;
/*
object->resident_page_count++;
if (VM_PAGE_WIRED(mem)) {
- object->wired_page_count++;
+ assert(mem->wire_count > 0);
+
+ if (!mem->private && !mem->fictitious)
+ {
+ if (!object->wired_page_count)
+ {
+ assert(VM_KERN_MEMORY_NONE != tag);
+ object->wire_tag = tag;
+ VM_OBJECT_WIRED(object);
+ }
+ }
+ object->wired_page_count++;
}
assert(object->resident_page_count >= object->wired_page_count);
- if (object->internal) {
- OSAddAtomic(1, &vm_page_internal_count);
- } else {
- OSAddAtomic(1, &vm_page_external_count);
+ if (batch_accounting == FALSE) {
+ if (object->internal) {
+ OSAddAtomic(1, &vm_page_internal_count);
+ } else {
+ OSAddAtomic(1, &vm_page_external_count);
+ }
}
/*
* allocation.
*/
assert(!mem->reusable);
- if (mem->object->all_reusable) {
+ if (object->all_reusable) {
OSAddAtomic(+1, &vm_page_stats_reusable.reusable_count);
}
+ if (object->purgable == VM_PURGABLE_DENY) {
+ owner = TASK_NULL;
+ } else {
+ owner = object->vo_purgeable_owner;
+ }
+ if (owner &&
+ (object->purgable == VM_PURGABLE_NONVOLATILE ||
+ VM_PAGE_WIRED(mem))) {
+
+ if (delayed_ledger_update)
+ *delayed_ledger_update += PAGE_SIZE;
+ else {
+ /* more non-volatile bytes */
+ ledger_credit(owner->ledger,
+ task_ledgers.purgeable_nonvolatile,
+ PAGE_SIZE);
+ /* more footprint */
+ ledger_credit(owner->ledger,
+ task_ledgers.phys_footprint,
+ PAGE_SIZE);
+ }
+
+ } else if (owner &&
+ (object->purgable == VM_PURGABLE_VOLATILE ||
+ object->purgable == VM_PURGABLE_EMPTY)) {
+ assert(! VM_PAGE_WIRED(mem));
+ /* more volatile bytes */
+ ledger_credit(owner->ledger,
+ task_ledgers.purgeable_volatile,
+ PAGE_SIZE);
+ }
+
if (object->purgable == VM_PURGABLE_VOLATILE) {
if (VM_PAGE_WIRED(mem)) {
- OSAddAtomic(1, &vm_page_purgeable_wired_count);
+ OSAddAtomic(+1, &vm_page_purgeable_wired_count);
} else {
- OSAddAtomic(1, &vm_page_purgeable_count);
+ OSAddAtomic(+1, &vm_page_purgeable_count);
}
} else if (object->purgable == VM_PURGABLE_EMPTY &&
- mem->throttled) {
+ mem->vm_page_q_state == VM_PAGE_ON_THROTTLED_Q) {
/*
* This page belongs to a purged VM object but hasn't
* been purged (because it was "busy").
if (queues_lock_held == FALSE)
vm_page_unlock_queues();
}
+
+#if VM_OBJECT_TRACKING_OP_MODIFIED
+ if (vm_object_tracking_inited &&
+ object->internal &&
+ object->resident_page_count == 0 &&
+ object->pager == NULL &&
+ object->shadow != NULL &&
+ object->shadow->copy == object) {
+ void *bt[VM_OBJECT_TRACKING_BTDEPTH];
+ int numsaved = 0;
+
+ numsaved =OSBacktrace(bt, VM_OBJECT_TRACKING_BTDEPTH);
+ btlog_add_entry(vm_object_tracking_btlog,
+ object,
+ VM_OBJECT_TRACKING_OP_MODIFIED,
+ bt,
+ numsaved);
+ }
+#endif /* VM_OBJECT_TRACKING_OP_MODIFIED */
}
/*
*/
void
vm_page_replace(
- register vm_page_t mem,
- register vm_object_t object,
- register vm_object_offset_t offset)
+ vm_page_t mem,
+ vm_object_t object,
+ vm_object_offset_t offset)
{
vm_page_bucket_t *bucket;
vm_page_t found_m = VM_PAGE_NULL;
VM_PAGE_CHECK(mem);
#endif
vm_object_lock_assert_exclusive(object);
-#if DEBUG
- if (mem->tabled || mem->object != VM_OBJECT_NULL)
+#if DEBUG || VM_PAGE_CHECK_BUCKETS
+ if (mem->tabled || mem->vm_page_object)
panic("vm_page_replace: page %p for (obj=%p,off=0x%llx) "
"already in (obj=%p,off=0x%llx)",
- mem, object, offset, mem->object, mem->offset);
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_NOTOWNED);
+ mem, object, offset, VM_PAGE_OBJECT(mem), mem->offset);
#endif
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_NOTOWNED);
+
+ assert(!VM_PAGE_PAGEABLE(mem));
+
/*
* Record the object/offset pair in this page
*/
-
- mem->object = object;
+ mem->vm_page_object = VM_PAGE_PACK_OBJECT(object);
mem->offset = offset;
/*
lck_spin_lock(bucket_lock);
- if (bucket->pages) {
- vm_page_t *mp = &bucket->pages;
- vm_page_t m = *mp;
+ if (bucket->page_list) {
+ vm_page_packed_t *mp = &bucket->page_list;
+ vm_page_t m = (vm_page_t)(VM_PAGE_UNPACK_PTR(*mp));
do {
- if (m->object == object && m->offset == offset) {
+ /*
+ * compare packed object pointers
+ */
+ if (m->vm_page_object == mem->vm_page_object && m->offset == offset) {
/*
* Remove old page from hash list
*/
- *mp = m->next;
+ *mp = m->next_m;
+ m->hashed = FALSE;
+ m->next_m = VM_PAGE_PACK_PTR(NULL);
found_m = m;
break;
}
- mp = &m->next;
- } while ((m = *mp));
+ mp = &m->next_m;
+ } while ((m = (vm_page_t)(VM_PAGE_UNPACK_PTR(*mp))));
- mem->next = bucket->pages;
+ mem->next_m = bucket->page_list;
} else {
- mem->next = VM_PAGE_NULL;
+ mem->next_m = VM_PAGE_PACK_PTR(NULL);
}
/*
* insert new page at head of hash list
*/
- bucket->pages = mem;
+ bucket->page_list = VM_PAGE_PACK_PTR(mem);
+ mem->hashed = TRUE;
lck_spin_unlock(bucket_lock);
*/
vm_page_free_unlocked(found_m, FALSE);
}
- vm_page_insert_internal(mem, object, offset, FALSE, FALSE, FALSE);
+ vm_page_insert_internal(mem, object, offset, VM_KERN_MEMORY_NONE, FALSE, FALSE, FALSE, FALSE, NULL);
}
/*
vm_page_t this;
lck_spin_t *bucket_lock;
int hash_id;
+ task_t owner;
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(mem);
XPR(XPR_VM_PAGE,
"vm_page_remove, object 0x%X offset 0x%X page 0x%X\n",
- mem->object, mem->offset,
+ m_object, mem->offset,
mem, 0,0);
- vm_object_lock_assert_exclusive(mem->object);
+ vm_object_lock_assert_exclusive(m_object);
assert(mem->tabled);
assert(!mem->cleaning);
assert(!mem->laundry);
+
+ if (VM_PAGE_PAGEABLE(mem)) {
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+ }
#if 0
/*
* we don't hold the page queue lock
/*
* Remove from the object_object/offset hash table
*/
- hash_id = vm_page_hash(mem->object, mem->offset);
+ hash_id = vm_page_hash(m_object, mem->offset);
bucket = &vm_page_buckets[hash_id];
bucket_lock = &vm_page_bucket_locks[hash_id / BUCKETS_PER_LOCK];
lck_spin_lock(bucket_lock);
- if ((this = bucket->pages) == mem) {
+ if ((this = (vm_page_t)(VM_PAGE_UNPACK_PTR(bucket->page_list))) == mem) {
/* optimize for common case */
- bucket->pages = mem->next;
+ bucket->page_list = mem->next_m;
} else {
- vm_page_t *prev;
+ vm_page_packed_t *prev;
- for (prev = &this->next;
- (this = *prev) != mem;
- prev = &this->next)
+ for (prev = &this->next_m;
+ (this = (vm_page_t)(VM_PAGE_UNPACK_PTR(*prev))) != mem;
+ prev = &this->next_m)
continue;
- *prev = this->next;
+ *prev = this->next_m;
}
#if MACH_PAGE_HASH_STATS
bucket->cur_count--;
#endif /* MACH_PAGE_HASH_STATS */
-
+ mem->hashed = FALSE;
+ this->next_m = VM_PAGE_PACK_PTR(NULL);
lck_spin_unlock(bucket_lock);
}
/*
* Now remove from the object's list of backed pages.
*/
- VM_PAGE_REMOVE(mem);
+ vm_page_remove_internal(mem);
/*
* And show that the object has one fewer resident
* page.
*/
- assert(mem->object->resident_page_count > 0);
- mem->object->resident_page_count--;
+ assert(m_object->resident_page_count > 0);
+ m_object->resident_page_count--;
- if (mem->object->internal) {
+ if (m_object->internal) {
+#if DEBUG
assert(vm_page_internal_count);
+#endif /* DEBUG */
+
OSAddAtomic(-1, &vm_page_internal_count);
} else {
assert(vm_page_external_count);
OSAddAtomic(-1, &vm_page_external_count);
+
+ if (mem->xpmapped) {
+ assert(vm_page_xpmapped_external_count);
+ OSAddAtomic(-1, &vm_page_xpmapped_external_count);
+ }
}
- if (!mem->object->internal && (mem->object->objq.next || mem->object->objq.prev)) {
- if (mem->object->resident_page_count == 0)
- vm_object_cache_remove(mem->object);
+ if (!m_object->internal && (m_object->objq.next || m_object->objq.prev)) {
+ if (m_object->resident_page_count == 0)
+ vm_object_cache_remove(m_object);
}
if (VM_PAGE_WIRED(mem)) {
- assert(mem->object->wired_page_count > 0);
- mem->object->wired_page_count--;
+ assert(mem->wire_count > 0);
+ assert(m_object->wired_page_count > 0);
+ m_object->wired_page_count--;
+ if (!m_object->wired_page_count) {
+ VM_OBJECT_UNWIRED(m_object);
+ }
}
- assert(mem->object->resident_page_count >=
- mem->object->wired_page_count);
+ assert(m_object->resident_page_count >=
+ m_object->wired_page_count);
if (mem->reusable) {
- assert(mem->object->reusable_page_count > 0);
- mem->object->reusable_page_count--;
- assert(mem->object->reusable_page_count <=
- mem->object->resident_page_count);
+ assert(m_object->reusable_page_count > 0);
+ m_object->reusable_page_count--;
+ assert(m_object->reusable_page_count <=
+ m_object->resident_page_count);
mem->reusable = FALSE;
OSAddAtomic(-1, &vm_page_stats_reusable.reusable_count);
vm_page_stats_reusable.reused_remove++;
- } else if (mem->object->all_reusable) {
+ } else if (m_object->all_reusable) {
OSAddAtomic(-1, &vm_page_stats_reusable.reusable_count);
vm_page_stats_reusable.reused_remove++;
}
- if (mem->object->purgable == VM_PURGABLE_VOLATILE) {
+ if (m_object->purgable == VM_PURGABLE_DENY) {
+ owner = TASK_NULL;
+ } else {
+ owner = m_object->vo_purgeable_owner;
+ }
+ if (owner &&
+ (m_object->purgable == VM_PURGABLE_NONVOLATILE ||
+ VM_PAGE_WIRED(mem))) {
+ /* less non-volatile bytes */
+ ledger_debit(owner->ledger,
+ task_ledgers.purgeable_nonvolatile,
+ PAGE_SIZE);
+ /* less footprint */
+ ledger_debit(owner->ledger,
+ task_ledgers.phys_footprint,
+ PAGE_SIZE);
+ } else if (owner &&
+ (m_object->purgable == VM_PURGABLE_VOLATILE ||
+ m_object->purgable == VM_PURGABLE_EMPTY)) {
+ assert(! VM_PAGE_WIRED(mem));
+ /* less volatile bytes */
+ ledger_debit(owner->ledger,
+ task_ledgers.purgeable_volatile,
+ PAGE_SIZE);
+ }
+ if (m_object->purgable == VM_PURGABLE_VOLATILE) {
if (VM_PAGE_WIRED(mem)) {
assert(vm_page_purgeable_wired_count > 0);
OSAddAtomic(-1, &vm_page_purgeable_wired_count);
OSAddAtomic(-1, &vm_page_purgeable_count);
}
}
- if (mem->object->set_cache_attr == TRUE)
- pmap_set_cache_attributes(mem->phys_page, 0);
+ if (m_object->set_cache_attr == TRUE)
+ pmap_set_cache_attributes(VM_PAGE_GET_PHYS_PAGE(mem), 0);
mem->tabled = FALSE;
- mem->object = VM_OBJECT_NULL;
+ mem->vm_page_object = 0;
mem->offset = (vm_object_offset_t) -1;
}
* The object must be locked. No side effects.
*/
-unsigned long vm_page_lookup_hint = 0;
-unsigned long vm_page_lookup_hint_next = 0;
-unsigned long vm_page_lookup_hint_prev = 0;
-unsigned long vm_page_lookup_hint_miss = 0;
-unsigned long vm_page_lookup_bucket_NULL = 0;
-unsigned long vm_page_lookup_miss = 0;
+#define VM_PAGE_HASH_LOOKUP_THRESHOLD 10
+
+#if DEBUG_VM_PAGE_LOOKUP
+
+struct {
+ uint64_t vpl_total;
+ uint64_t vpl_empty_obj;
+ uint64_t vpl_bucket_NULL;
+ uint64_t vpl_hit_hint;
+ uint64_t vpl_hit_hint_next;
+ uint64_t vpl_hit_hint_prev;
+ uint64_t vpl_fast;
+ uint64_t vpl_slow;
+ uint64_t vpl_hit;
+ uint64_t vpl_miss;
+
+ uint64_t vpl_fast_elapsed;
+ uint64_t vpl_slow_elapsed;
+} vm_page_lookup_stats __attribute__((aligned(8)));
+
+#endif
+
+#define KDP_VM_PAGE_WALK_MAX 1000
+
+vm_page_t
+kdp_vm_page_lookup(
+ vm_object_t object,
+ vm_object_offset_t offset)
+{
+ vm_page_t cur_page;
+ int num_traversed = 0;
+
+ if (not_in_kdp) {
+ panic("panic: kdp_vm_page_lookup done outside of kernel debugger");
+ }
+
+ vm_page_queue_iterate(&object->memq, cur_page, vm_page_t, listq) {
+ if (cur_page->offset == offset) {
+ return cur_page;
+ }
+ num_traversed++;
+
+ if (num_traversed >= KDP_VM_PAGE_WALK_MAX) {
+ return VM_PAGE_NULL;
+ }
+ }
+ return VM_PAGE_NULL;
+}
vm_page_t
vm_page_lookup(
{
vm_page_t mem;
vm_page_bucket_t *bucket;
- queue_entry_t qe;
- lck_spin_t *bucket_lock;
+ vm_page_queue_entry_t qe;
+ lck_spin_t *bucket_lock = NULL;
int hash_id;
+#if DEBUG_VM_PAGE_LOOKUP
+ uint64_t start, elapsed;
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_total);
+#endif
vm_object_lock_assert_held(object);
+
+ if (object->resident_page_count == 0) {
+#if DEBUG_VM_PAGE_LOOKUP
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_empty_obj);
+#endif
+ return (VM_PAGE_NULL);
+ }
+
mem = object->memq_hint;
if (mem != VM_PAGE_NULL) {
- assert(mem->object == object);
+ assert(VM_PAGE_OBJECT(mem) == object);
if (mem->offset == offset) {
- vm_page_lookup_hint++;
- return mem;
+#if DEBUG_VM_PAGE_LOOKUP
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_hit_hint);
+#endif
+ return (mem);
}
- qe = queue_next(&mem->listq);
+ qe = (vm_page_queue_entry_t)vm_page_queue_next(&mem->listq);
- if (! queue_end(&object->memq, qe)) {
+ if (! vm_page_queue_end(&object->memq, qe)) {
vm_page_t next_page;
- next_page = (vm_page_t) qe;
- assert(next_page->object == object);
+ next_page = (vm_page_t)((uintptr_t)qe);
+ assert(VM_PAGE_OBJECT(next_page) == object);
if (next_page->offset == offset) {
- vm_page_lookup_hint_next++;
object->memq_hint = next_page; /* new hint */
- return next_page;
+#if DEBUG_VM_PAGE_LOOKUP
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_hit_hint_next);
+#endif
+ return (next_page);
}
}
- qe = queue_prev(&mem->listq);
+ qe = (vm_page_queue_entry_t)vm_page_queue_prev(&mem->listq);
- if (! queue_end(&object->memq, qe)) {
+ if (! vm_page_queue_end(&object->memq, qe)) {
vm_page_t prev_page;
- prev_page = (vm_page_t) qe;
- assert(prev_page->object == object);
+ prev_page = (vm_page_t)((uintptr_t)qe);
+ assert(VM_PAGE_OBJECT(prev_page) == object);
if (prev_page->offset == offset) {
- vm_page_lookup_hint_prev++;
object->memq_hint = prev_page; /* new hint */
- return prev_page;
+#if DEBUG_VM_PAGE_LOOKUP
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_hit_hint_prev);
+#endif
+ return (prev_page);
}
}
}
* at outside the scope of the hash bucket lock... this is a
* really cheap optimiztion to avoid taking the lock
*/
- if (bucket->pages == VM_PAGE_NULL) {
- vm_page_lookup_bucket_NULL++;
-
+ if (!bucket->page_list) {
+#if DEBUG_VM_PAGE_LOOKUP
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_bucket_NULL);
+#endif
return (VM_PAGE_NULL);
}
- bucket_lock = &vm_page_bucket_locks[hash_id / BUCKETS_PER_LOCK];
-
- lck_spin_lock(bucket_lock);
- for (mem = bucket->pages; mem != VM_PAGE_NULL; mem = mem->next) {
-#if 0
+#if DEBUG_VM_PAGE_LOOKUP
+ start = mach_absolute_time();
+#endif
+ if (object->resident_page_count <= VM_PAGE_HASH_LOOKUP_THRESHOLD) {
/*
- * we don't hold the page queue lock
- * so this check isn't safe to make
+ * on average, it's roughly 3 times faster to run a short memq list
+ * than to take the spin lock and go through the hash list
*/
- VM_PAGE_CHECK(mem);
+ mem = (vm_page_t)vm_page_queue_first(&object->memq);
+
+ while (!vm_page_queue_end(&object->memq, (vm_page_queue_entry_t)mem)) {
+
+ if (mem->offset == offset)
+ break;
+
+ mem = (vm_page_t)vm_page_queue_next(&mem->listq);
+ }
+ if (vm_page_queue_end(&object->memq, (vm_page_queue_entry_t)mem))
+ mem = NULL;
+ } else {
+ vm_page_object_t packed_object;
+
+ packed_object = VM_PAGE_PACK_OBJECT(object);
+
+ bucket_lock = &vm_page_bucket_locks[hash_id / BUCKETS_PER_LOCK];
+
+ lck_spin_lock(bucket_lock);
+
+ for (mem = (vm_page_t)(VM_PAGE_UNPACK_PTR(bucket->page_list));
+ mem != VM_PAGE_NULL;
+ mem = (vm_page_t)(VM_PAGE_UNPACK_PTR(mem->next_m))) {
+#if 0
+ /*
+ * we don't hold the page queue lock
+ * so this check isn't safe to make
+ */
+ VM_PAGE_CHECK(mem);
#endif
- if ((mem->object == object) && (mem->offset == offset))
- break;
+ if ((mem->vm_page_object == packed_object) && (mem->offset == offset))
+ break;
+ }
+ lck_spin_unlock(bucket_lock);
}
- lck_spin_unlock(bucket_lock);
+#if DEBUG_VM_PAGE_LOOKUP
+ elapsed = mach_absolute_time() - start;
+
+ if (bucket_lock) {
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_slow);
+ OSAddAtomic64(elapsed, &vm_page_lookup_stats.vpl_slow_elapsed);
+ } else {
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_fast);
+ OSAddAtomic64(elapsed, &vm_page_lookup_stats.vpl_fast_elapsed);
+ }
+ if (mem != VM_PAGE_NULL)
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_hit);
+ else
+ OSAddAtomic64(1, &vm_page_lookup_stats.vpl_miss);
+#endif
if (mem != VM_PAGE_NULL) {
- if (object->memq_hint != VM_PAGE_NULL) {
- vm_page_lookup_hint_miss++;
- }
- assert(mem->object == object);
- object->memq_hint = mem;
- } else
- vm_page_lookup_miss++;
+ assert(VM_PAGE_OBJECT(mem) == object);
- return(mem);
+ object->memq_hint = mem;
+ }
+ return (mem);
}
*/
void
vm_page_rename(
- register vm_page_t mem,
- register vm_object_t new_object,
- vm_object_offset_t new_offset,
- boolean_t encrypted_ok)
+ vm_page_t mem,
+ vm_object_t new_object,
+ vm_object_offset_t new_offset,
+ boolean_t encrypted_ok)
{
boolean_t internal_to_external, external_to_internal;
+ vm_tag_t tag;
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(mem);
- assert(mem->object != new_object);
+ assert(m_object != new_object);
+ assert(m_object);
/*
* ENCRYPTED SWAP:
internal_to_external = FALSE;
external_to_internal = FALSE;
- if (mem->local) {
+ if (mem->vm_page_q_state == VM_PAGE_ON_ACTIVE_LOCAL_Q) {
/*
* it's much easier to get the vm_page_pageable_xxx accounting correct
* if we first move the page to the active queue... it's going to end
* up there anyway, and we don't do vm_page_rename's frequently enough
* for this to matter.
*/
- VM_PAGE_QUEUES_REMOVE(mem);
+ vm_page_queues_remove(mem, FALSE);
vm_page_activate(mem);
}
- if (mem->active || mem->inactive || mem->speculative) {
- if (mem->object->internal && !new_object->internal) {
+ if (VM_PAGE_PAGEABLE(mem)) {
+ if (m_object->internal && !new_object->internal) {
internal_to_external = TRUE;
}
- if (!mem->object->internal && new_object->internal) {
+ if (!m_object->internal && new_object->internal) {
external_to_internal = TRUE;
}
}
+ tag = m_object->wire_tag;
vm_page_remove(mem, TRUE);
- vm_page_insert_internal(mem, new_object, new_offset, TRUE, TRUE, FALSE);
+ vm_page_insert_internal(mem, new_object, new_offset, tag, TRUE, TRUE, FALSE, FALSE, NULL);
if (internal_to_external) {
vm_page_pageable_internal_count--;
}
#endif
*mem = vm_page_template;
- mem->phys_page = phys_page;
+
+ VM_PAGE_SET_PHYS_PAGE(mem, phys_page);
#if 0
/*
* we're leaving this turned off for now... currently pages
vm_page_release_fictitious(
vm_page_t m)
{
- assert(!m->free);
+ assert((m->vm_page_q_state == VM_PAGE_NOT_ON_Q) || (m->vm_page_q_state == VM_PAGE_IS_WIRED));
assert(m->fictitious);
- assert(m->phys_page == vm_page_fictitious_addr ||
- m->phys_page == vm_page_guard_addr);
+ assert(VM_PAGE_GET_PHYS_PAGE(m) == vm_page_fictitious_addr ||
+ VM_PAGE_GET_PHYS_PAGE(m) == vm_page_guard_addr);
c_vm_page_release_fictitious++;
retval = kernel_memory_allocate(zone_map,
&addr, PAGE_SIZE, VM_PROT_ALL,
- KMA_KOBJECT|KMA_NOPAGEWAIT);
+ KMA_KOBJECT|KMA_NOPAGEWAIT, VM_KERN_MEMORY_ZONE);
if (retval != KERN_SUCCESS) {
/*
* No page was available. Drop the
return;
}
- /* Increment zone page count. We account for all memory managed by the zone in z->page_count */
- OSAddAtomic64(1, &(vm_page_zone->page_count));
-
zcram(vm_page_zone, addr, PAGE_SIZE);
lck_mtx_unlock(&vm_page_alloc_lock);
}
+#if CONFIG_BACKGROUND_QUEUE
-/*
- * this is an interface to support bring-up of drivers
- * on platforms with physical memory > 4G...
- */
-int vm_himemory_mode = 0;
+void
+vm_page_update_background_state(vm_page_t mem)
+{
+ if (vm_page_background_mode == VM_PAGE_BG_DISABLED)
+ return;
+ if (mem->vm_page_in_background == FALSE)
+ return;
-/*
- * this interface exists to support hardware controllers
- * incapable of generating DMAs with more than 32 bits
- * of address on platforms with physical memory > 4G...
- */
-unsigned int vm_lopages_allocated_q = 0;
-unsigned int vm_lopages_allocated_cpm_success = 0;
-unsigned int vm_lopages_allocated_cpm_failed = 0;
-queue_head_t vm_lopage_queue_free;
+#if BACKGROUNDQ_BASED_ON_QOS
+ if (proc_get_effective_thread_policy(current_thread(), TASK_POLICY_QOS) <= THREAD_QOS_LEGACY)
+ return;
+#else
+ task_t my_task;
-vm_page_t
-vm_page_grablo(void)
-{
- vm_page_t mem;
+ my_task = current_task();
+
+ if (my_task) {
+ if (proc_get_effective_task_policy(my_task, TASK_POLICY_DARWIN_BG))
+ return;
+ }
+#endif
+ vm_page_lockspin_queues();
- if (vm_lopage_needed == FALSE)
- return (vm_page_grab());
+ mem->vm_page_in_background = FALSE;
+ vm_page_background_promoted_count++;
- lck_mtx_lock_spin(&vm_page_queue_free_lock);
+ vm_page_remove_from_backgroundq(mem);
- if ( !queue_empty(&vm_lopage_queue_free)) {
- queue_remove_first(&vm_lopage_queue_free,
- mem,
- vm_page_t,
- pageq);
- assert(vm_lopage_free_count);
+ vm_page_unlock_queues();
+}
- vm_lopage_free_count--;
- vm_lopages_allocated_q++;
- if (vm_lopage_free_count < vm_lopage_lowater)
- vm_lopage_refill = TRUE;
+void
+vm_page_assign_background_state(vm_page_t mem)
+{
+ if (vm_page_background_mode == VM_PAGE_BG_DISABLED)
+ return;
- lck_mtx_unlock(&vm_page_queue_free_lock);
- } else {
- lck_mtx_unlock(&vm_page_queue_free_lock);
+#if BACKGROUNDQ_BASED_ON_QOS
+ if (proc_get_effective_thread_policy(current_thread(), TASK_POLICY_QOS) <= THREAD_QOS_LEGACY)
+ mem->vm_page_in_background = TRUE;
+ else
+ mem->vm_page_in_background = FALSE;
+#else
+ task_t my_task;
- if (cpm_allocate(PAGE_SIZE, &mem, atop(0xffffffff), 0, FALSE, KMA_LOMEM) != KERN_SUCCESS) {
+ my_task = current_task();
- lck_mtx_lock_spin(&vm_page_queue_free_lock);
- vm_lopages_allocated_cpm_failed++;
- lck_mtx_unlock(&vm_page_queue_free_lock);
+ if (my_task)
+ mem->vm_page_in_background = proc_get_effective_task_policy(my_task, TASK_POLICY_DARWIN_BG);
+#endif
+}
- return (VM_PAGE_NULL);
+
+void
+vm_page_remove_from_backgroundq(
+ vm_page_t mem)
+{
+ vm_object_t m_object;
+
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+
+ if (mem->vm_page_on_backgroundq) {
+ vm_page_queue_remove(&vm_page_queue_background, mem, vm_page_t, vm_page_backgroundq);
+
+ mem->vm_page_backgroundq.next = 0;
+ mem->vm_page_backgroundq.prev = 0;
+ mem->vm_page_on_backgroundq = FALSE;
+
+ vm_page_background_count--;
+
+ m_object = VM_PAGE_OBJECT(mem);
+
+ if (m_object->internal)
+ vm_page_background_internal_count--;
+ else
+ vm_page_background_external_count--;
+ } else {
+ assert(VM_PAGE_UNPACK_PTR(mem->vm_page_backgroundq.next) == (uintptr_t)NULL &&
+ VM_PAGE_UNPACK_PTR(mem->vm_page_backgroundq.prev) == (uintptr_t)NULL);
+ }
+}
+
+
+void
+vm_page_add_to_backgroundq(
+ vm_page_t mem,
+ boolean_t first)
+{
+ vm_object_t m_object;
+
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+
+ if (vm_page_background_mode == VM_PAGE_BG_DISABLED)
+ return;
+
+ if (mem->vm_page_on_backgroundq == FALSE) {
+
+ m_object = VM_PAGE_OBJECT(mem);
+
+ if (vm_page_background_exclude_external && !m_object->internal)
+ return;
+
+ if (first == TRUE)
+ vm_page_queue_enter_first(&vm_page_queue_background, mem, vm_page_t, vm_page_backgroundq);
+ else
+ vm_page_queue_enter(&vm_page_queue_background, mem, vm_page_t, vm_page_backgroundq);
+ mem->vm_page_on_backgroundq = TRUE;
+
+ vm_page_background_count++;
+
+ if (m_object->internal)
+ vm_page_background_internal_count++;
+ else
+ vm_page_background_external_count++;
+ }
+}
+
+#endif
+
+/*
+ * this is an interface to support bring-up of drivers
+ * on platforms with physical memory > 4G...
+ */
+int vm_himemory_mode = 2;
+
+
+/*
+ * this interface exists to support hardware controllers
+ * incapable of generating DMAs with more than 32 bits
+ * of address on platforms with physical memory > 4G...
+ */
+unsigned int vm_lopages_allocated_q = 0;
+unsigned int vm_lopages_allocated_cpm_success = 0;
+unsigned int vm_lopages_allocated_cpm_failed = 0;
+vm_page_queue_head_t vm_lopage_queue_free __attribute__((aligned(VM_PACKED_POINTER_ALIGNMENT)));
+
+vm_page_t
+vm_page_grablo(void)
+{
+ vm_page_t mem;
+
+ if (vm_lopage_needed == FALSE)
+ return (vm_page_grab());
+
+ lck_mtx_lock_spin(&vm_page_queue_free_lock);
+
+ if ( !vm_page_queue_empty(&vm_lopage_queue_free)) {
+ vm_page_queue_remove_first(&vm_lopage_queue_free,
+ mem,
+ vm_page_t,
+ pageq);
+ assert(vm_lopage_free_count);
+ assert(mem->vm_page_q_state == VM_PAGE_ON_FREE_LOPAGE_Q);
+ mem->vm_page_q_state = VM_PAGE_NOT_ON_Q;
+
+ vm_lopage_free_count--;
+ vm_lopages_allocated_q++;
+
+ if (vm_lopage_free_count < vm_lopage_lowater)
+ vm_lopage_refill = TRUE;
+
+ lck_mtx_unlock(&vm_page_queue_free_lock);
+
+#if CONFIG_BACKGROUND_QUEUE
+ vm_page_assign_background_state(mem);
+#endif
+ } else {
+ lck_mtx_unlock(&vm_page_queue_free_lock);
+
+ if (cpm_allocate(PAGE_SIZE, &mem, atop(0xffffffff), 0, FALSE, KMA_LOMEM) != KERN_SUCCESS) {
+
+ lck_mtx_lock_spin(&vm_page_queue_free_lock);
+ vm_lopages_allocated_cpm_failed++;
+ lck_mtx_unlock(&vm_page_queue_free_lock);
+
+ return (VM_PAGE_NULL);
}
+ assert(mem->vm_page_q_state == VM_PAGE_NOT_ON_Q);
+
mem->busy = TRUE;
vm_page_lockspin_queues();
vm_page_unlock_queues();
}
assert(mem->busy);
- assert(!mem->free);
assert(!mem->pmapped);
assert(!mem->wpmapped);
- assert(!pmap_is_noencrypt(mem->phys_page));
+ assert(!pmap_is_noencrypt(VM_PAGE_GET_PHYS_PAGE(mem)));
- mem->pageq.next = NULL;
- mem->pageq.prev = NULL;
+ VM_PAGE_ZERO_PAGEQ_ENTRY(mem);
return (mem);
}
* request from the per-cpu queue.
*/
-#define COLOR_GROUPS_TO_STEAL 4
+#if CONFIG_SECLUDED_MEMORY
+vm_page_t vm_page_grab_secluded(void);
+#endif /* CONFIG_SECLUDED_MEMORY */
+vm_page_t
+vm_page_grab(void)
+{
+ return vm_page_grab_options(0);
+}
vm_page_t
-vm_page_grab( void )
+vm_page_grab_options(
+ int grab_options)
{
vm_page_t mem;
-
disable_preemption();
if ((mem = PROCESSOR_DATA(current_processor(), free_pages))) {
return_page_from_cpu_list:
+ assert(mem->vm_page_q_state == VM_PAGE_ON_FREE_LOCAL_Q);
+
PROCESSOR_DATA(current_processor(), page_grab_count) += 1;
- PROCESSOR_DATA(current_processor(), free_pages) = mem->pageq.next;
- mem->pageq.next = NULL;
+ PROCESSOR_DATA(current_processor(), free_pages) = mem->snext;
enable_preemption();
+ VM_PAGE_ZERO_PAGEQ_ENTRY(mem);
+ mem->vm_page_q_state = VM_PAGE_NOT_ON_Q;
- assert(mem->listq.next == NULL && mem->listq.prev == NULL);
+ assert(mem->listq.next == 0 && mem->listq.prev == 0);
assert(mem->tabled == FALSE);
- assert(mem->object == VM_OBJECT_NULL);
+ assert(mem->vm_page_object == 0);
assert(!mem->laundry);
- assert(!mem->free);
- assert(pmap_verify_free(mem->phys_page));
+ assert(pmap_verify_free(VM_PAGE_GET_PHYS_PAGE(mem)));
assert(mem->busy);
assert(!mem->encrypted);
assert(!mem->pmapped);
assert(!mem->wpmapped);
- assert(!mem->active);
- assert(!mem->inactive);
- assert(!mem->throttled);
- assert(!mem->speculative);
- assert(!pmap_is_noencrypt(mem->phys_page));
+ assert(!pmap_is_noencrypt(VM_PAGE_GET_PHYS_PAGE(mem)));
+#if CONFIG_BACKGROUND_QUEUE
+ vm_page_assign_background_state(mem);
+#endif
return mem;
}
enable_preemption();
* Optionally produce warnings if the wire or gobble
* counts exceed some threshold.
*/
- if (vm_page_wire_count_warning > 0
- && vm_page_wire_count >= vm_page_wire_count_warning) {
+#if VM_PAGE_WIRE_COUNT_WARNING
+ if (vm_page_wire_count >= VM_PAGE_WIRE_COUNT_WARNING) {
printf("mk: vm_page_grab(): high wired page count of %d\n",
vm_page_wire_count);
- assert(vm_page_wire_count < vm_page_wire_count_warning);
}
- if (vm_page_gobble_count_warning > 0
- && vm_page_gobble_count >= vm_page_gobble_count_warning) {
+#endif
+#if VM_PAGE_GOBBLE_COUNT_WARNING
+ if (vm_page_gobble_count >= VM_PAGE_GOBBLE_COUNT_WARNING) {
printf("mk: vm_page_grab(): high gobbled page count of %d\n",
vm_page_gobble_count);
- assert(vm_page_gobble_count < vm_page_gobble_count_warning);
}
+#endif
lck_mtx_lock_spin(&vm_page_queue_free_lock);
*/
if ((vm_page_free_count < vm_page_free_reserved) &&
!(current_thread()->options & TH_OPT_VMPRIV)) {
+ /* no page for us in the free queue... */
lck_mtx_unlock(&vm_page_queue_free_lock);
mem = VM_PAGE_NULL;
+
+#if CONFIG_SECLUDED_MEMORY
+ /* ... but can we try and grab from the secluded queue? */
+ if (vm_page_secluded_count > 0 &&
+ ((grab_options & VM_PAGE_GRAB_SECLUDED) ||
+ task_can_use_secluded_mem(current_task()))) {
+ mem = vm_page_grab_secluded();
+ if (grab_options & VM_PAGE_GRAB_SECLUDED) {
+ vm_page_secluded.grab_for_iokit++;
+ if (mem) {
+ vm_page_secluded.grab_for_iokit_success++;
+ }
+ }
+ if (mem) {
+ VM_CHECK_MEMORYSTATUS;
+ return mem;
+ }
+ }
+#else /* CONFIG_SECLUDED_MEMORY */
+ (void) grab_options;
+#endif /* CONFIG_SECLUDED_MEMORY */
}
else {
vm_page_t head;
if (vm_page_free_count <= vm_page_free_reserved)
pages_to_steal = 1;
else {
- pages_to_steal = COLOR_GROUPS_TO_STEAL * vm_colors;
-
- if (pages_to_steal > (vm_page_free_count - vm_page_free_reserved))
+ if (vm_free_magazine_refill_limit <= (vm_page_free_count - vm_page_free_reserved))
+ pages_to_steal = vm_free_magazine_refill_limit;
+ else
pages_to_steal = (vm_page_free_count - vm_page_free_reserved);
}
color = PROCESSOR_DATA(current_processor(), start_color);
head = tail = NULL;
+ vm_page_free_count -= pages_to_steal;
+
while (pages_to_steal--) {
- if (--vm_page_free_count < vm_page_free_count_minimum)
- vm_page_free_count_minimum = vm_page_free_count;
- while (queue_empty(&vm_page_queue_free[color]))
+ while (vm_page_queue_empty(&vm_page_queue_free[color].qhead))
color = (color + 1) & vm_color_mask;
- queue_remove_first(&vm_page_queue_free[color],
+ vm_page_queue_remove_first(&vm_page_queue_free[color].qhead,
mem,
vm_page_t,
pageq);
- mem->pageq.next = NULL;
- mem->pageq.prev = NULL;
-
- assert(!mem->active);
- assert(!mem->inactive);
- assert(!mem->throttled);
- assert(!mem->speculative);
+ assert(mem->vm_page_q_state == VM_PAGE_ON_FREE_Q);
+ VM_PAGE_ZERO_PAGEQ_ENTRY(mem);
+
color = (color + 1) & vm_color_mask;
if (head == NULL)
head = mem;
else
- tail->pageq.next = (queue_t)mem;
+ tail->snext = mem;
tail = mem;
- mem->pageq.prev = NULL;
- assert(mem->listq.next == NULL && mem->listq.prev == NULL);
+ assert(mem->listq.next == 0 && mem->listq.prev == 0);
assert(mem->tabled == FALSE);
- assert(mem->object == VM_OBJECT_NULL);
+ assert(mem->vm_page_object == 0);
assert(!mem->laundry);
- assert(mem->free);
- mem->free = FALSE;
- assert(pmap_verify_free(mem->phys_page));
+ mem->vm_page_q_state = VM_PAGE_ON_FREE_LOCAL_Q;
+
+ assert(pmap_verify_free(VM_PAGE_GET_PHYS_PAGE(mem)));
assert(mem->busy);
- assert(!mem->free);
assert(!mem->encrypted);
assert(!mem->pmapped);
assert(!mem->wpmapped);
- assert(!pmap_is_noencrypt(mem->phys_page));
+ assert(!pmap_is_noencrypt(VM_PAGE_GET_PHYS_PAGE(mem)));
}
- PROCESSOR_DATA(current_processor(), free_pages) = head->pageq.next;
+ lck_mtx_unlock(&vm_page_queue_free_lock);
+
+ PROCESSOR_DATA(current_processor(), free_pages) = head->snext;
PROCESSOR_DATA(current_processor(), start_color) = color;
/*
*/
PROCESSOR_DATA(current_processor(), page_grab_count) += 1;
mem = head;
- mem->pageq.next = NULL;
+ assert(mem->vm_page_q_state == VM_PAGE_ON_FREE_LOCAL_Q);
- lck_mtx_unlock(&vm_page_queue_free_lock);
+ VM_PAGE_ZERO_PAGEQ_ENTRY(mem);
+ mem->vm_page_q_state = VM_PAGE_NOT_ON_Q;
enable_preemption();
}
((vm_page_free_count < vm_page_free_target) &&
((vm_page_inactive_count + vm_page_speculative_count) < vm_page_inactive_min)))
thread_wakeup((event_t) &vm_page_free_wanted);
+#if CONFIG_BACKGROUND_QUEUE
+ if (vm_page_background_mode == VM_PAGE_BG_LEVEL_3 && (vm_page_background_count > vm_page_background_limit))
+ thread_wakeup((event_t) &vm_page_free_wanted);
+#endif
VM_CHECK_MEMORYSTATUS;
-
-// dbgLog(mem->phys_page, vm_page_free_count, vm_page_wire_count, 4); /* (TEST/DEBUG) */
+
+ if (mem) {
+// dbgLog(VM_PAGE_GET_PHYS_PAGE(mem), vm_page_free_count, vm_page_wire_count, 4); /* (TEST/DEBUG) */
+
+#if CONFIG_BACKGROUND_QUEUE
+ vm_page_assign_background_state(mem);
+#endif
+ }
+ return mem;
+}
+
+#if CONFIG_SECLUDED_MEMORY
+vm_page_t
+vm_page_grab_secluded(void)
+{
+ vm_page_t mem;
+ vm_object_t object;
+ int refmod_state;
+
+ if (vm_page_secluded_count == 0) {
+ /* no secluded pages to grab... */
+ return VM_PAGE_NULL;
+ }
+
+ /* secluded queue is protected by the VM page queue lock */
+ vm_page_lock_queues();
+
+ if (vm_page_secluded_count == 0) {
+ /* no secluded pages to grab... */
+ vm_page_unlock_queues();
+ return VM_PAGE_NULL;
+ }
+
+#if 00
+ /* can we grab from the secluded queue? */
+ if (vm_page_secluded_count > vm_page_secluded_target ||
+ (vm_page_secluded_count > 0 &&
+ task_can_use_secluded_mem(current_task()))) {
+ /* OK */
+ } else {
+ /* can't grab from secluded queue... */
+ vm_page_unlock_queues();
+ return VM_PAGE_NULL;
+ }
+#endif
+
+ /* we can grab a page from secluded queue! */
+ assert((vm_page_secluded_count_free +
+ vm_page_secluded_count_inuse) ==
+ vm_page_secluded_count);
+ if (current_task()->task_can_use_secluded_mem) {
+ assert(num_tasks_can_use_secluded_mem > 0);
+ }
+ assert(!vm_page_queue_empty(&vm_page_queue_secluded));
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+ mem = vm_page_queue_first(&vm_page_queue_secluded);
+ assert(mem->vm_page_q_state == VM_PAGE_ON_SECLUDED_Q);
+ vm_page_queues_remove(mem, TRUE);
+
+ object = VM_PAGE_OBJECT(mem);
+
+ assert(!mem->fictitious);
+ assert(!VM_PAGE_WIRED(mem));
+ if (object == VM_OBJECT_NULL) {
+ /* free for grab! */
+ vm_page_unlock_queues();
+ vm_page_secluded.grab_success_free++;
+
+ assert(mem->busy);
+ assert(mem->vm_page_q_state == VM_PAGE_NOT_ON_Q);
+ assert(VM_PAGE_OBJECT(mem) == VM_OBJECT_NULL);
+ assert(mem->pageq.next == 0);
+ assert(mem->pageq.prev == 0);
+ assert(mem->listq.next == 0);
+ assert(mem->listq.prev == 0);
+#if CONFIG_BACKGROUND_QUEUE
+ assert(mem->vm_page_on_backgroundq == 0);
+ assert(mem->vm_page_backgroundq.next == 0);
+ assert(mem->vm_page_backgroundq.prev == 0);
+#endif /* CONFIG_BACKGROUND_QUEUE */
+ return mem;
+ }
+
+ assert(!object->internal);
+// vm_page_pageable_external_count--;
+
+ if (!vm_object_lock_try(object)) {
+// printf("SECLUDED: page %p: object %p locked\n", mem, object);
+ vm_page_secluded.grab_failure_locked++;
+ reactivate_secluded_page:
+ vm_page_activate(mem);
+ vm_page_unlock_queues();
+ return VM_PAGE_NULL;
+ }
+ if (mem->busy ||
+ mem->cleaning ||
+ mem->laundry) {
+ /* can't steal page in this state... */
+ vm_object_unlock(object);
+ vm_page_secluded.grab_failure_state++;
+ goto reactivate_secluded_page;
+ }
+
+ mem->busy = TRUE;
+ refmod_state = pmap_disconnect(VM_PAGE_GET_PHYS_PAGE(mem));
+ if (refmod_state & VM_MEM_REFERENCED) {
+ mem->reference = TRUE;
+ }
+ if (refmod_state & VM_MEM_MODIFIED) {
+ SET_PAGE_DIRTY(mem, FALSE);
+ }
+ if (mem->dirty || mem->precious) {
+ /* can't grab a dirty page; re-activate */
+// printf("SECLUDED: dirty page %p\n", mem);
+ PAGE_WAKEUP_DONE(mem);
+ vm_page_secluded.grab_failure_dirty++;
+ vm_object_unlock(object);
+ goto reactivate_secluded_page;
+ }
+ if (mem->reference) {
+ /* it's been used but we do need to grab a page... */
+ }
+
+ vm_page_unlock_queues();
+
+ /* finish what vm_page_free() would have done... */
+ vm_page_free_prepare_object(mem, TRUE);
+ vm_object_unlock(object);
+ object = VM_OBJECT_NULL;
+ if (vm_page_free_verify) {
+ assert(pmap_verify_free(VM_PAGE_GET_PHYS_PAGE(mem)));
+ }
+ pmap_clear_noencrypt(VM_PAGE_GET_PHYS_PAGE(mem));
+ vm_page_secluded.grab_success_other++;
+
+ assert(mem->busy);
+ assert(mem->vm_page_q_state == VM_PAGE_NOT_ON_Q);
+ assert(VM_PAGE_OBJECT(mem) == VM_OBJECT_NULL);
+ assert(mem->pageq.next == 0);
+ assert(mem->pageq.prev == 0);
+ assert(mem->listq.next == 0);
+ assert(mem->listq.prev == 0);
+#if CONFIG_BACKGROUND_QUEUE
+ assert(mem->vm_page_on_backgroundq == 0);
+ assert(mem->vm_page_backgroundq.next == 0);
+ assert(mem->vm_page_backgroundq.prev == 0);
+#endif /* CONFIG_BACKGROUND_QUEUE */
return mem;
}
+#endif /* CONFIG_SECLUDED_MEMORY */
/*
* vm_page_release:
void
vm_page_release(
- register vm_page_t mem)
+ vm_page_t mem,
+ boolean_t page_queues_locked)
{
unsigned int color;
int need_wakeup = 0;
int need_priv_wakeup = 0;
+#if CONFIG_SECLUDED_MEMORY
+ int need_secluded_wakeup = 0;
+#endif /* CONFIG_SECLUDED_MEMORY */
+ if (page_queues_locked) {
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+ } else {
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_NOTOWNED);
+ }
assert(!mem->private && !mem->fictitious);
if (vm_page_free_verify) {
- assert(pmap_verify_free(mem->phys_page));
+ assert(pmap_verify_free(VM_PAGE_GET_PHYS_PAGE(mem)));
}
-// dbgLog(mem->phys_page, vm_page_free_count, vm_page_wire_count, 5); /* (TEST/DEBUG) */
+// dbgLog(VM_PAGE_GET_PHYS_PAGE(mem), vm_page_free_count, vm_page_wire_count, 5); /* (TEST/DEBUG) */
- pmap_clear_noencrypt(mem->phys_page);
+ pmap_clear_noencrypt(VM_PAGE_GET_PHYS_PAGE(mem));
lck_mtx_lock_spin(&vm_page_queue_free_lock);
-#if DEBUG
- if (mem->free)
- panic("vm_page_release");
-#endif
+ assert(mem->vm_page_q_state == VM_PAGE_NOT_ON_Q);
assert(mem->busy);
assert(!mem->laundry);
- assert(mem->object == VM_OBJECT_NULL);
- assert(mem->pageq.next == NULL &&
- mem->pageq.prev == NULL);
- assert(mem->listq.next == NULL &&
- mem->listq.prev == NULL);
-
+ assert(mem->vm_page_object == 0);
+ assert(mem->pageq.next == 0 && mem->pageq.prev == 0);
+ assert(mem->listq.next == 0 && mem->listq.prev == 0);
+#if CONFIG_BACKGROUND_QUEUE
+ assert(mem->vm_page_backgroundq.next == 0 &&
+ mem->vm_page_backgroundq.prev == 0 &&
+ mem->vm_page_on_backgroundq == FALSE);
+#endif
if ((mem->lopage == TRUE || vm_lopage_refill == TRUE) &&
vm_lopage_free_count < vm_lopage_free_limit &&
- mem->phys_page < max_valid_low_ppnum) {
+ VM_PAGE_GET_PHYS_PAGE(mem) < max_valid_low_ppnum) {
/*
* this exists to support hardware controllers
* incapable of generating DMAs with more than 32 bits
* of address on platforms with physical memory > 4G...
*/
- queue_enter_first(&vm_lopage_queue_free,
- mem,
- vm_page_t,
- pageq);
+ vm_page_queue_enter_first(&vm_lopage_queue_free,
+ mem,
+ vm_page_t,
+ pageq);
vm_lopage_free_count++;
if (vm_lopage_free_count >= vm_lopage_free_limit)
vm_lopage_refill = FALSE;
+ mem->vm_page_q_state = VM_PAGE_ON_FREE_LOPAGE_Q;
mem->lopage = TRUE;
- } else {
+#if CONFIG_SECLUDED_MEMORY
+ } else if (vm_page_free_count > vm_page_free_reserved &&
+ vm_page_secluded_count < vm_page_secluded_target &&
+ num_tasks_can_use_secluded_mem == 0) {
+ /*
+ * XXX FBDP TODO: also avoid refilling secluded queue
+ * when some IOKit objects are already grabbing from it...
+ */
+ if (!page_queues_locked) {
+ if (!vm_page_trylock_queues()) {
+ /* take locks in right order */
+ lck_mtx_unlock(&vm_page_queue_free_lock);
+ vm_page_lock_queues();
+ lck_mtx_lock_spin(&vm_page_queue_free_lock);
+ }
+ }
+ mem->lopage = FALSE;
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+ vm_page_queue_enter_first(&vm_page_queue_secluded,
+ mem,
+ vm_page_t,
+ pageq);
+ mem->vm_page_q_state = VM_PAGE_ON_SECLUDED_Q;
+ vm_page_secluded_count++;
+ vm_page_secluded_count_free++;
+ if (!page_queues_locked) {
+ vm_page_unlock_queues();
+ }
+ LCK_MTX_ASSERT(&vm_page_queue_free_lock, LCK_MTX_ASSERT_OWNED);
+ if (vm_page_free_wanted_secluded > 0) {
+ vm_page_free_wanted_secluded--;
+ need_secluded_wakeup = 1;
+ }
+#endif /* CONFIG_SECLUDED_MEMORY */
+ } else {
mem->lopage = FALSE;
- mem->free = TRUE;
+ mem->vm_page_q_state = VM_PAGE_ON_FREE_Q;
- color = mem->phys_page & vm_color_mask;
- queue_enter_first(&vm_page_queue_free[color],
- mem,
- vm_page_t,
- pageq);
+ color = VM_PAGE_GET_PHYS_PAGE(mem) & vm_color_mask;
+ vm_page_queue_enter_first(&vm_page_queue_free[color].qhead,
+ mem,
+ vm_page_t,
+ pageq);
vm_page_free_count++;
/*
* Check if we should wake up someone waiting for page.
if (vm_page_free_wanted_privileged > 0) {
vm_page_free_wanted_privileged--;
need_priv_wakeup = 1;
+#if CONFIG_SECLUDED_MEMORY
+ } else if (vm_page_free_wanted_secluded > 0 &&
+ vm_page_free_count > vm_page_free_reserved) {
+ vm_page_free_wanted_secluded--;
+ need_secluded_wakeup = 1;
+#endif /* CONFIG_SECLUDED_MEMORY */
} else if (vm_page_free_wanted > 0 &&
vm_page_free_count > vm_page_free_reserved) {
vm_page_free_wanted--;
if (need_priv_wakeup)
thread_wakeup_one((event_t) &vm_page_free_wanted_privileged);
+#if CONFIG_SECLUDED_MEMORY
+ else if (need_secluded_wakeup)
+ thread_wakeup_one((event_t) &vm_page_free_wanted_secluded);
+#endif /* CONFIG_SECLUDED_MEMORY */
else if (need_wakeup)
thread_wakeup_one((event_t) &vm_page_free_count);
VM_CHECK_MEMORYSTATUS;
}
+/*
+ * This version of vm_page_release() is used only at startup
+ * when we are single-threaded and pages are being released
+ * for the first time. Hence, no locking or unnecessary checks are made.
+ * Note: VM_CHECK_MEMORYSTATUS invoked by the caller.
+ */
+void
+vm_page_release_startup(
+ vm_page_t mem)
+{
+ vm_page_queue_t queue_free;
+
+ if (vm_lopage_free_count < vm_lopage_free_limit &&
+ VM_PAGE_GET_PHYS_PAGE(mem) < max_valid_low_ppnum) {
+ mem->lopage = TRUE;
+ mem->vm_page_q_state = VM_PAGE_ON_FREE_LOPAGE_Q;
+ vm_lopage_free_count++;
+ queue_free = &vm_lopage_queue_free;
+#if CONFIG_SECLUDED_MEMORY
+ } else if (vm_page_secluded_count < vm_page_secluded_target) {
+ mem->lopage = FALSE;
+ mem->vm_page_q_state = VM_PAGE_ON_SECLUDED_Q;
+ vm_page_secluded_count++;
+ vm_page_secluded_count_free++;
+ queue_free = &vm_page_queue_secluded;
+#endif /* CONFIG_SECLUDED_MEMORY */
+ } else {
+ mem->lopage = FALSE;
+ mem->vm_page_q_state = VM_PAGE_ON_FREE_Q;
+ vm_page_free_count++;
+ queue_free = &vm_page_queue_free[VM_PAGE_GET_PHYS_PAGE(mem) & vm_color_mask].qhead;
+ }
+ vm_page_queue_enter_first(queue_free, mem, vm_page_t, pageq);
+}
+
/*
* vm_page_wait:
*
lck_mtx_unlock(&vm_page_queue_free_lock);
return TRUE;
}
- if (vm_page_free_count < vm_page_free_target) {
- if (is_privileged) {
- if (vm_page_free_wanted_privileged++ == 0)
- need_wakeup = 1;
- wait_result = assert_wait((event_t)&vm_page_free_wanted_privileged, interruptible);
- } else {
- if (vm_page_free_wanted++ == 0)
- need_wakeup = 1;
- wait_result = assert_wait((event_t)&vm_page_free_count, interruptible);
- }
+ if (vm_page_free_count >= vm_page_free_target) {
lck_mtx_unlock(&vm_page_queue_free_lock);
- counter(c_vm_page_wait_block++);
-
- if (need_wakeup)
- thread_wakeup((event_t)&vm_page_free_wanted);
+ return TRUE;
+ }
- if (wait_result == THREAD_WAITING) {
- VM_DEBUG_EVENT(vm_page_wait_block, VM_PAGE_WAIT_BLOCK, DBG_FUNC_START,
- vm_page_free_wanted_privileged, vm_page_free_wanted, 0, 0);
- wait_result = thread_block(THREAD_CONTINUE_NULL);
- VM_DEBUG_EVENT(vm_page_wait_block, VM_PAGE_WAIT_BLOCK, DBG_FUNC_END, 0, 0, 0, 0);
+ if (is_privileged) {
+ if (vm_page_free_wanted_privileged++ == 0)
+ need_wakeup = 1;
+ wait_result = assert_wait((event_t)&vm_page_free_wanted_privileged, interruptible);
+#if CONFIG_SECLUDED_MEMORY
+ } else if (secluded_for_apps &&
+ task_can_use_secluded_mem(current_task())) {
+#if 00
+ /* XXX FBDP: need pageq lock for this... */
+ /* XXX FBDP: might wait even if pages available, */
+ /* XXX FBDP: hopefully not for too long... */
+ if (vm_page_secluded_count > 0) {
+ lck_mtx_unlock(&vm_page_queue_free_lock);
+ return TRUE;
}
-
- return(wait_result == THREAD_AWAKENED);
+#endif
+ if (vm_page_free_wanted_secluded++ == 0) {
+ need_wakeup = 1;
+ }
+ wait_result = assert_wait(
+ (event_t)&vm_page_free_wanted_secluded,
+ interruptible);
+#endif /* CONFIG_SECLUDED_MEMORY */
} else {
- lck_mtx_unlock(&vm_page_queue_free_lock);
- return TRUE;
+ if (vm_page_free_wanted++ == 0)
+ need_wakeup = 1;
+ wait_result = assert_wait((event_t)&vm_page_free_count,
+ interruptible);
+ }
+ lck_mtx_unlock(&vm_page_queue_free_lock);
+ counter(c_vm_page_wait_block++);
+
+ if (need_wakeup)
+ thread_wakeup((event_t)&vm_page_free_wanted);
+
+ if (wait_result == THREAD_WAITING) {
+ VM_DEBUG_EVENT(vm_page_wait_block, VM_PAGE_WAIT_BLOCK, DBG_FUNC_START,
+ vm_page_free_wanted_privileged,
+ vm_page_free_wanted,
+#if CONFIG_SECLUDED_MEMORY
+ vm_page_free_wanted_secluded,
+#else /* CONFIG_SECLUDED_MEMORY */
+ 0,
+#endif /* CONFIG_SECLUDED_MEMORY */
+ 0);
+ wait_result = thread_block(THREAD_CONTINUE_NULL);
+ VM_DEBUG_EVENT(vm_page_wait_block,
+ VM_PAGE_WAIT_BLOCK, DBG_FUNC_END, 0, 0, 0, 0);
}
+
+ return (wait_result == THREAD_AWAKENED);
}
/*
vm_object_t object,
vm_object_offset_t offset)
{
- register vm_page_t mem;
-
- vm_object_lock_assert_exclusive(object);
- mem = vm_page_grab();
- if (mem == VM_PAGE_NULL)
- return VM_PAGE_NULL;
-
- vm_page_insert(mem, object, offset);
-
- return(mem);
-}
-
-vm_page_t
-vm_page_alloclo(
- vm_object_t object,
- vm_object_offset_t offset)
-{
- register vm_page_t mem;
+ vm_page_t mem;
+ int grab_options;
vm_object_lock_assert_exclusive(object);
- mem = vm_page_grablo();
+ grab_options = 0;
+#if CONFIG_SECLUDED_MEMORY
+ if (object->can_grab_secluded) {
+ grab_options |= VM_PAGE_GRAB_SECLUDED;
+ }
+#endif /* CONFIG_SECLUDED_MEMORY */
+ mem = vm_page_grab_options(grab_options);
if (mem == VM_PAGE_NULL)
return VM_PAGE_NULL;
return(mem);
}
-
/*
* vm_page_alloc_guard:
*
vm_object_t object,
vm_object_offset_t offset)
{
- register vm_page_t mem;
+ vm_page_t mem;
vm_object_lock_assert_exclusive(object);
mem = vm_page_grab_guard();
vm_page_free_prepare_queues(
vm_page_t mem)
{
+ vm_object_t m_object;
+
VM_PAGE_CHECK(mem);
- assert(!mem->free);
+
+ assert(mem->vm_page_q_state != VM_PAGE_ON_FREE_Q);
assert(!mem->cleaning);
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
- if (mem->free)
- panic("vm_page_free: freeing page on free list\n");
-#endif
- if (mem->object) {
- vm_object_lock_assert_exclusive(mem->object);
+ m_object = VM_PAGE_OBJECT(mem);
+
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+ if (m_object) {
+ vm_object_lock_assert_exclusive(m_object);
}
if (mem->laundry) {
/*
counter(++c_laundry_pages_freed);
}
- VM_PAGE_QUEUES_REMOVE(mem); /* clears local/active/inactive/throttled/speculative */
+ vm_page_queues_remove(mem, TRUE);
if (VM_PAGE_WIRED(mem)) {
- if (mem->object) {
- assert(mem->object->wired_page_count > 0);
- mem->object->wired_page_count--;
- assert(mem->object->resident_page_count >=
- mem->object->wired_page_count);
+ assert(mem->wire_count > 0);
+
+ if (m_object) {
+ assert(m_object->wired_page_count > 0);
+ m_object->wired_page_count--;
+ if (!m_object->wired_page_count) {
+ VM_OBJECT_UNWIRED(m_object);
+ }
+
+ assert(m_object->resident_page_count >=
+ m_object->wired_page_count);
- if (mem->object->purgable == VM_PURGABLE_VOLATILE) {
+ if (m_object->purgable == VM_PURGABLE_VOLATILE) {
OSAddAtomic(+1, &vm_page_purgeable_count);
assert(vm_page_purgeable_wired_count > 0);
OSAddAtomic(-1, &vm_page_purgeable_wired_count);
}
+ if ((m_object->purgable == VM_PURGABLE_VOLATILE ||
+ m_object->purgable == VM_PURGABLE_EMPTY) &&
+ m_object->vo_purgeable_owner != TASK_NULL) {
+ task_t owner;
+
+ owner = m_object->vo_purgeable_owner;
+ /*
+ * While wired, this page was accounted
+ * as "non-volatile" but it should now
+ * be accounted as "volatile".
+ */
+ /* one less "non-volatile"... */
+ ledger_debit(owner->ledger,
+ task_ledgers.purgeable_nonvolatile,
+ PAGE_SIZE);
+ /* ... and "phys_footprint" */
+ ledger_debit(owner->ledger,
+ task_ledgers.phys_footprint,
+ PAGE_SIZE);
+ /* one more "volatile" */
+ ledger_credit(owner->ledger,
+ task_ledgers.purgeable_volatile,
+ PAGE_SIZE);
+ }
}
if (!mem->private && !mem->fictitious)
vm_page_wire_count--;
+
+ mem->vm_page_q_state = VM_PAGE_NOT_ON_Q;
mem->wire_count = 0;
assert(!mem->gobbled);
} else if (mem->gobbled) {
if (mem->private) {
mem->private = FALSE;
mem->fictitious = TRUE;
- mem->phys_page = vm_page_fictitious_addr;
+ VM_PAGE_SET_PHYS_PAGE(mem, vm_page_fictitious_addr);
}
if ( !mem->fictitious) {
- vm_page_init(mem, mem->phys_page, mem->lopage);
+ assert(mem->pageq.next == 0);
+ assert(mem->pageq.prev == 0);
+ assert(mem->listq.next == 0);
+ assert(mem->listq.prev == 0);
+#if CONFIG_BACKGROUND_QUEUE
+ assert(mem->vm_page_backgroundq.next == 0);
+ assert(mem->vm_page_backgroundq.prev == 0);
+#endif /* CONFIG_BACKGROUND_QUEUE */
+ assert(mem->next_m == 0);
+ vm_page_init(mem, VM_PAGE_GET_PHYS_PAGE(mem), mem->lopage);
}
}
if (mem->fictitious) {
vm_page_release_fictitious(mem);
} else {
- vm_page_release(mem);
+ vm_page_release(mem,
+ TRUE); /* page queues are locked */
}
}
if (mem->fictitious) {
vm_page_release_fictitious(mem);
} else {
- vm_page_release(mem);
+ vm_page_release(mem, FALSE); /* page queues are not locked */
}
}
* as blocked up by vm_pageout_scan().
* The big win is not having to take the free list lock once
* per page.
+ *
+ * The VM page queues lock (vm_page_queue_lock) should NOT be held.
+ * The VM page free queues lock (vm_page_queue_free_lock) should NOT be held.
*/
void
vm_page_free_list(
vm_page_t local_freeq;
int pg_count;
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_NOTOWNED);
+ LCK_MTX_ASSERT(&vm_page_queue_free_lock, LCK_MTX_ASSERT_NOTOWNED);
+
while (freeq) {
pg_count = 0;
*/
while (mem && pg_count < 64) {
- assert(!mem->inactive);
- assert(!mem->active);
- assert(!mem->throttled);
- assert(!mem->free);
- assert(!mem->speculative);
- assert(!VM_PAGE_WIRED(mem));
- assert(mem->pageq.prev == NULL);
+ assert(mem->vm_page_q_state == VM_PAGE_NOT_ON_Q);
+#if CONFIG_BACKGROUND_QUEUE
+ assert(mem->vm_page_backgroundq.next == 0 &&
+ mem->vm_page_backgroundq.prev == 0 &&
+ mem->vm_page_on_backgroundq == FALSE);
+#endif
+ nxt = mem->snext;
+ mem->snext = NULL;
+ assert(mem->pageq.prev == 0);
- nxt = (vm_page_t)(mem->pageq.next);
-
if (vm_page_free_verify && !mem->fictitious && !mem->private) {
- assert(pmap_verify_free(mem->phys_page));
+ assert(pmap_verify_free(VM_PAGE_GET_PHYS_PAGE(mem)));
}
if (prepare_object == TRUE)
vm_page_free_prepare_object(mem, TRUE);
if ((mem->lopage == TRUE || vm_lopage_refill == TRUE) &&
vm_lopage_free_count < vm_lopage_free_limit &&
- mem->phys_page < max_valid_low_ppnum) {
- mem->pageq.next = NULL;
- vm_page_release(mem);
+ VM_PAGE_GET_PHYS_PAGE(mem) < max_valid_low_ppnum) {
+ vm_page_release(mem, FALSE); /* page queues are not locked */
+#if CONFIG_SECLUDED_MEMORY
+ } else if (vm_page_secluded_count < vm_page_secluded_target &&
+ num_tasks_can_use_secluded_mem == 0) {
+ vm_page_release(mem,
+ FALSE); /* page queues are not locked */
+#endif /* CONFIG_SECLUDED_MEMORY */
} else {
/*
* IMPORTANT: we can't set the page "free" here
* cause trouble because the page is not actually
* in the free queue yet...
*/
- mem->pageq.next = (queue_entry_t)local_freeq;
+ mem->snext = local_freeq;
local_freeq = mem;
pg_count++;
- pmap_clear_noencrypt(mem->phys_page);
+ pmap_clear_noencrypt(VM_PAGE_GET_PHYS_PAGE(mem));
}
} else {
- assert(mem->phys_page == vm_page_fictitious_addr ||
- mem->phys_page == vm_page_guard_addr);
+ assert(VM_PAGE_GET_PHYS_PAGE(mem) == vm_page_fictitious_addr ||
+ VM_PAGE_GET_PHYS_PAGE(mem) == vm_page_guard_addr);
vm_page_release_fictitious(mem);
}
mem = nxt;
unsigned int avail_free_count;
unsigned int need_wakeup = 0;
unsigned int need_priv_wakeup = 0;
+#if CONFIG_SECLUDED_MEMORY
+ unsigned int need_wakeup_secluded = 0;
+#endif /* CONFIG_SECLUDED_MEMORY */
lck_mtx_lock_spin(&vm_page_queue_free_lock);
while (mem) {
int color;
- nxt = (vm_page_t)(mem->pageq.next);
+ nxt = mem->snext;
- assert(!mem->free);
+ assert(mem->vm_page_q_state == VM_PAGE_NOT_ON_Q);
assert(mem->busy);
- mem->free = TRUE;
-
- color = mem->phys_page & vm_color_mask;
- queue_enter_first(&vm_page_queue_free[color],
- mem,
- vm_page_t,
- pageq);
+ mem->lopage = FALSE;
+ mem->vm_page_q_state = VM_PAGE_ON_FREE_Q;
+
+ color = VM_PAGE_GET_PHYS_PAGE(mem) & vm_color_mask;
+ vm_page_queue_enter_first(&vm_page_queue_free[color].qhead,
+ mem,
+ vm_page_t,
+ pageq);
mem = nxt;
}
vm_page_free_count += pg_count;
avail_free_count = 0;
} else {
need_priv_wakeup = vm_page_free_wanted_privileged;
- vm_page_free_wanted_privileged = 0;
avail_free_count -= vm_page_free_wanted_privileged;
+ vm_page_free_wanted_privileged = 0;
}
}
+#if CONFIG_SECLUDED_MEMORY
+ if (vm_page_free_wanted_secluded > 0 &&
+ avail_free_count > vm_page_free_reserved) {
+ unsigned int available_pages;
+ available_pages = (avail_free_count -
+ vm_page_free_reserved);
+ if (available_pages <
+ vm_page_free_wanted_secluded) {
+ need_wakeup_secluded = available_pages;
+ vm_page_free_wanted_secluded -=
+ available_pages;
+ avail_free_count -= available_pages;
+ } else {
+ need_wakeup_secluded =
+ vm_page_free_wanted_secluded;
+ avail_free_count -=
+ vm_page_free_wanted_secluded;
+ vm_page_free_wanted_secluded = 0;
+ }
+ }
+#endif /* CONFIG_SECLUDED_MEMORY */
if (vm_page_free_wanted > 0 && avail_free_count > vm_page_free_reserved) {
unsigned int available_pages;
*/
thread_wakeup((event_t)&vm_page_free_wanted_privileged);
}
+#if CONFIG_SECLUDED_MEMORY
+ if (need_wakeup_secluded != 0 &&
+ vm_page_free_wanted_secluded == 0) {
+ thread_wakeup((event_t)
+ &vm_page_free_wanted_secluded);
+ } else {
+ for (;
+ need_wakeup_secluded != 0;
+ need_wakeup_secluded--) {
+ thread_wakeup_one(
+ (event_t)
+ &vm_page_free_wanted_secluded);
+ }
+ }
+#endif /* CONFIG_SECLUDED_MEMORY */
if (need_wakeup != 0 && vm_page_free_wanted == 0) {
/*
* We don't expect to have any more waiters
*
* The page's object and the page queues must be locked.
*/
+
+
void
vm_page_wire(
- register vm_page_t mem)
+ vm_page_t mem,
+ vm_tag_t tag,
+ boolean_t check_memorystatus)
{
+ vm_object_t m_object;
-// dbgLog(current_thread(), mem->offset, mem->object, 1); /* (TEST/DEBUG) */
+ m_object = VM_PAGE_OBJECT(mem);
+
+// dbgLog(current_thread(), mem->offset, m_object, 1); /* (TEST/DEBUG) */
VM_PAGE_CHECK(mem);
- if (mem->object) {
- vm_object_lock_assert_exclusive(mem->object);
+ if (m_object) {
+ vm_object_lock_assert_exclusive(m_object);
} else {
/*
* In theory, the page should be in an object before it
* that page and update it at the same time.
*/
}
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
-#endif
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
if ( !VM_PAGE_WIRED(mem)) {
- if (mem->pageout_queue) {
- mem->pageout = FALSE;
- vm_pageout_throttle_up(mem);
- }
- VM_PAGE_QUEUES_REMOVE(mem);
+ if (mem->laundry)
+ vm_pageout_steal_laundry(mem, TRUE);
+
+ vm_page_queues_remove(mem, TRUE);
+
+ assert(mem->wire_count == 0);
+ mem->vm_page_q_state = VM_PAGE_IS_WIRED;
+
+ if (m_object) {
+
+ if (!mem->private && !mem->fictitious)
+ {
+ if (!m_object->wired_page_count)
+ {
+ assert(VM_KERN_MEMORY_NONE != tag);
+ m_object->wire_tag = tag;
+ VM_OBJECT_WIRED(m_object);
+ }
+ }
+ m_object->wired_page_count++;
- if (mem->object) {
- mem->object->wired_page_count++;
- assert(mem->object->resident_page_count >=
- mem->object->wired_page_count);
- if (mem->object->purgable == VM_PURGABLE_VOLATILE) {
+ assert(m_object->resident_page_count >=
+ m_object->wired_page_count);
+ if (m_object->purgable == VM_PURGABLE_VOLATILE) {
assert(vm_page_purgeable_count > 0);
OSAddAtomic(-1, &vm_page_purgeable_count);
OSAddAtomic(1, &vm_page_purgeable_wired_count);
}
- if (mem->object->all_reusable) {
+ if ((m_object->purgable == VM_PURGABLE_VOLATILE ||
+ m_object->purgable == VM_PURGABLE_EMPTY) &&
+ m_object->vo_purgeable_owner != TASK_NULL) {
+ task_t owner;
+
+ owner = m_object->vo_purgeable_owner;
+ /* less volatile bytes */
+ ledger_debit(owner->ledger,
+ task_ledgers.purgeable_volatile,
+ PAGE_SIZE);
+ /* more not-quite-volatile bytes */
+ ledger_credit(owner->ledger,
+ task_ledgers.purgeable_nonvolatile,
+ PAGE_SIZE);
+ /* more footprint */
+ ledger_credit(owner->ledger,
+ task_ledgers.phys_footprint,
+ PAGE_SIZE);
+ }
+ if (m_object->all_reusable) {
/*
* Wired pages are not counted as "re-usable"
* in "all_reusable" VM objects, so nothing
* wired, so adjust its state and the
* accounting.
*/
- vm_object_reuse_pages(mem->object,
+ vm_object_reuse_pages(m_object,
mem->offset,
mem->offset+PAGE_SIZE_64,
FALSE);
vm_page_gobble_count--;
mem->gobbled = FALSE;
- VM_CHECK_MEMORYSTATUS;
-
+ if (check_memorystatus == TRUE) {
+ VM_CHECK_MEMORYSTATUS;
+ }
/*
* ENCRYPTED SWAP:
* The page could be encrypted, but
*/
}
assert(!mem->gobbled);
+ assert(mem->vm_page_q_state == VM_PAGE_IS_WIRED);
mem->wire_count++;
+ if (__improbable(mem->wire_count == 0)) {
+ panic("vm_page_wire(%p): wire_count overflow", mem);
+ }
VM_PAGE_CHECK(mem);
}
-/*
- * vm_page_gobble:
- *
- * Mark this page as consumed by the vm/ipc/xmm subsystems.
- *
- * Called only for freshly vm_page_grab()ed pages - w/ nothing locked.
- */
-void
-vm_page_gobble(
- register vm_page_t mem)
-{
- vm_page_lockspin_queues();
- VM_PAGE_CHECK(mem);
-
- assert(!mem->gobbled);
- assert( !VM_PAGE_WIRED(mem));
-
- if (!mem->gobbled && !VM_PAGE_WIRED(mem)) {
- if (!mem->private && !mem->fictitious)
- vm_page_wire_count++;
- }
- vm_page_gobble_count++;
- mem->gobbled = TRUE;
- vm_page_unlock_queues();
-}
-
/*
* vm_page_unwire:
*
vm_page_t mem,
boolean_t queueit)
{
+ vm_object_t m_object;
-// dbgLog(current_thread(), mem->offset, mem->object, 0); /* (TEST/DEBUG) */
+ m_object = VM_PAGE_OBJECT(mem);
+
+// dbgLog(current_thread(), mem->offset, m_object, 0); /* (TEST/DEBUG) */
VM_PAGE_CHECK(mem);
assert(VM_PAGE_WIRED(mem));
- assert(mem->object != VM_OBJECT_NULL);
-#if DEBUG
- vm_object_lock_assert_exclusive(mem->object);
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
-#endif
+ assert(mem->wire_count > 0);
+ assert(!mem->gobbled);
+ assert(m_object != VM_OBJECT_NULL);
+ vm_object_lock_assert_exclusive(m_object);
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
if (--mem->wire_count == 0) {
- assert(!mem->private && !mem->fictitious);
- vm_page_wire_count--;
- assert(mem->object->wired_page_count > 0);
- mem->object->wired_page_count--;
- assert(mem->object->resident_page_count >=
- mem->object->wired_page_count);
- if (mem->object->purgable == VM_PURGABLE_VOLATILE) {
+ mem->vm_page_q_state = VM_PAGE_NOT_ON_Q;
+
+ if (!mem->private && !mem->fictitious) {
+ vm_page_wire_count--;
+ }
+ assert(m_object->wired_page_count > 0);
+ m_object->wired_page_count--;
+ if (!m_object->wired_page_count) {
+ VM_OBJECT_UNWIRED(m_object);
+ }
+ assert(m_object->resident_page_count >=
+ m_object->wired_page_count);
+ if (m_object->purgable == VM_PURGABLE_VOLATILE) {
OSAddAtomic(+1, &vm_page_purgeable_count);
assert(vm_page_purgeable_wired_count > 0);
OSAddAtomic(-1, &vm_page_purgeable_wired_count);
}
- assert(!mem->laundry);
- assert(mem->object != kernel_object);
- assert(mem->pageq.next == NULL && mem->pageq.prev == NULL);
+ if ((m_object->purgable == VM_PURGABLE_VOLATILE ||
+ m_object->purgable == VM_PURGABLE_EMPTY) &&
+ m_object->vo_purgeable_owner != TASK_NULL) {
+ task_t owner;
+
+ owner = m_object->vo_purgeable_owner;
+ /* more volatile bytes */
+ ledger_credit(owner->ledger,
+ task_ledgers.purgeable_volatile,
+ PAGE_SIZE);
+ /* less not-quite-volatile bytes */
+ ledger_debit(owner->ledger,
+ task_ledgers.purgeable_nonvolatile,
+ PAGE_SIZE);
+ /* less footprint */
+ ledger_debit(owner->ledger,
+ task_ledgers.phys_footprint,
+ PAGE_SIZE);
+ }
+ assert(m_object != kernel_object);
+ assert(mem->pageq.next == 0 && mem->pageq.prev == 0);
if (queueit == TRUE) {
- if (mem->object->purgable == VM_PURGABLE_EMPTY) {
+ if (m_object->purgable == VM_PURGABLE_EMPTY) {
vm_page_deactivate(mem);
} else {
vm_page_activate(mem);
vm_page_t m,
boolean_t clear_hw_reference)
{
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(m);
VM_PAGE_CHECK(m);
- assert(m->object != kernel_object);
- assert(m->phys_page != vm_page_guard_addr);
+ assert(m_object != kernel_object);
+ assert(VM_PAGE_GET_PHYS_PAGE(m) != vm_page_guard_addr);
-// dbgLog(m->phys_page, vm_page_free_count, vm_page_wire_count, 6); /* (TEST/DEBUG) */
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
-#endif
+// dbgLog(VM_PAGE_GET_PHYS_PAGE(m), vm_page_free_count, vm_page_wire_count, 6); /* (TEST/DEBUG) */
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
/*
* This page is no longer very interesting. If it was
* interesting (active or inactive/referenced), then we
}
/*
* if this page is currently on the pageout queue, we can't do the
- * VM_PAGE_QUEUES_REMOVE (which doesn't handle the pageout queue case)
+ * vm_page_queues_remove (which doesn't handle the pageout queue case)
* and we can't remove it manually since we would need the object lock
* (which is not required here) to decrement the activity_in_progress
* reference which is held on the object while the page is in the pageout queue...
* just let the normal laundry processing proceed
*/
- if (m->pageout_queue || m->private || m->fictitious || m->compressor || (VM_PAGE_WIRED(m)))
- return;
-
+ if (m->laundry || m->private || m->fictitious ||
+ (m->vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR) ||
+ (m->vm_page_q_state == VM_PAGE_ON_PAGEOUT_Q) ||
+ VM_PAGE_WIRED(m)) {
+ return;
+ }
if (!m->absent && clear_hw_reference == TRUE)
- pmap_clear_reference(m->phys_page);
+ pmap_clear_reference(VM_PAGE_GET_PHYS_PAGE(m));
m->reference = FALSE;
m->no_cache = FALSE;
- if (!m->inactive) {
- VM_PAGE_QUEUES_REMOVE(m);
-
- if (!VM_DYNAMIC_PAGING_ENABLED(memory_manager_default) &&
- m->dirty && m->object->internal &&
- (m->object->purgable == VM_PURGABLE_DENY ||
- m->object->purgable == VM_PURGABLE_NONVOLATILE ||
- m->object->purgable == VM_PURGABLE_VOLATILE)) {
- queue_enter(&vm_page_queue_throttled, m, vm_page_t, pageq);
- m->throttled = TRUE;
+ if ( !VM_PAGE_INACTIVE(m)) {
+ vm_page_queues_remove(m, FALSE);
+
+ if (!VM_DYNAMIC_PAGING_ENABLED() &&
+ m->dirty && m_object->internal &&
+ (m_object->purgable == VM_PURGABLE_DENY ||
+ m_object->purgable == VM_PURGABLE_NONVOLATILE ||
+ m_object->purgable == VM_PURGABLE_VOLATILE)) {
+ vm_page_check_pageable_safe(m);
+ vm_page_queue_enter(&vm_page_queue_throttled, m, vm_page_t, pageq);
+ m->vm_page_q_state = VM_PAGE_ON_THROTTLED_Q;
vm_page_throttled_count++;
} else {
- if (m->object->named && m->object->ref_count == 1) {
+ if (m_object->named && m_object->ref_count == 1) {
vm_page_speculate(m, FALSE);
#if DEVELOPMENT || DEBUG
vm_page_speculative_recreated++;
#endif
} else {
- VM_PAGE_ENQUEUE_INACTIVE(m, FALSE);
+ vm_page_enqueue_inactive(m, FALSE);
}
}
}
void vm_page_enqueue_cleaned(vm_page_t m)
{
- assert(m->phys_page != vm_page_guard_addr);
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
-#endif
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(m);
+
+ assert(VM_PAGE_GET_PHYS_PAGE(m) != vm_page_guard_addr);
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
assert( !(m->absent && !m->unusual));
+ assert( !VM_PAGE_WIRED(m));
if (m->gobbled) {
- assert( !VM_PAGE_WIRED(m));
if (!m->private && !m->fictitious)
vm_page_wire_count--;
vm_page_gobble_count--;
}
/*
* if this page is currently on the pageout queue, we can't do the
- * VM_PAGE_QUEUES_REMOVE (which doesn't handle the pageout queue case)
+ * vm_page_queues_remove (which doesn't handle the pageout queue case)
* and we can't remove it manually since we would need the object lock
* (which is not required here) to decrement the activity_in_progress
* reference which is held on the object while the page is in the pageout queue...
* just let the normal laundry processing proceed
*/
- if (m->clean_queue || m->pageout_queue || m->private || m->fictitious)
- return;
-
- VM_PAGE_QUEUES_REMOVE(m);
+ if (m->laundry || m->private || m->fictitious ||
+ (m->vm_page_q_state == VM_PAGE_ON_INACTIVE_CLEANED_Q) ||
+ (m->vm_page_q_state == VM_PAGE_ON_PAGEOUT_Q)) {
+ return;
+ }
+ vm_page_queues_remove(m, FALSE);
- queue_enter(&vm_page_queue_cleaned, m, vm_page_t, pageq);
- m->clean_queue = TRUE;
+ vm_page_check_pageable_safe(m);
+ vm_page_queue_enter(&vm_page_queue_cleaned, m, vm_page_t, pageq);
+ m->vm_page_q_state = VM_PAGE_ON_INACTIVE_CLEANED_Q;
vm_page_cleaned_count++;
- m->inactive = TRUE;
vm_page_inactive_count++;
- if (m->object->internal) {
+ if (m_object->internal) {
vm_page_pageable_internal_count++;
} else {
vm_page_pageable_external_count++;
}
-
+#if CONFIG_BACKGROUND_QUEUE
+ if (m->vm_page_in_background)
+ vm_page_add_to_backgroundq(m, TRUE);
+#endif
vm_pageout_enqueued_cleaned++;
}
* The page queues must be locked.
*/
-#if CONFIG_JETSAM
-#if LATENCY_JETSAM
-extern struct vm_page jetsam_latency_page[NUM_OF_JETSAM_LATENCY_TOKENS];
-#endif /* LATENCY_JETSAM */
-#endif /* CONFIG_JETSAM */
-
void
vm_page_activate(
- register vm_page_t m)
+ vm_page_t m)
{
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(m);
+
VM_PAGE_CHECK(m);
#ifdef FIXME_4778297
- assert(m->object != kernel_object);
-#endif
- assert(m->phys_page != vm_page_guard_addr);
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+ assert(m_object != kernel_object);
#endif
+ assert(VM_PAGE_GET_PHYS_PAGE(m) != vm_page_guard_addr);
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
assert( !(m->absent && !m->unusual));
if (m->gobbled) {
}
/*
* if this page is currently on the pageout queue, we can't do the
- * VM_PAGE_QUEUES_REMOVE (which doesn't handle the pageout queue case)
+ * vm_page_queues_remove (which doesn't handle the pageout queue case)
* and we can't remove it manually since we would need the object lock
* (which is not required here) to decrement the activity_in_progress
* reference which is held on the object while the page is in the pageout queue...
* just let the normal laundry processing proceed
*/
- if (m->pageout_queue || m->private || m->fictitious || m->compressor)
+ if (m->laundry || m->private || m->fictitious ||
+ (m->vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR) ||
+ (m->vm_page_q_state == VM_PAGE_ON_PAGEOUT_Q))
return;
#if DEBUG
- if (m->active)
+ if (m->vm_page_q_state == VM_PAGE_ON_ACTIVE_Q)
panic("vm_page_activate: already active");
#endif
- if (m->speculative) {
+ if (m->vm_page_q_state == VM_PAGE_ON_SPECULATIVE_Q) {
DTRACE_VM2(pgrec, int, 1, (uint64_t *), NULL);
DTRACE_VM2(pgfrec, int, 1, (uint64_t *), NULL);
}
- VM_PAGE_QUEUES_REMOVE(m);
+ vm_page_queues_remove(m, FALSE);
if ( !VM_PAGE_WIRED(m)) {
-
- if (!VM_DYNAMIC_PAGING_ENABLED(memory_manager_default) &&
- m->dirty && m->object->internal &&
- (m->object->purgable == VM_PURGABLE_DENY ||
- m->object->purgable == VM_PURGABLE_NONVOLATILE ||
- m->object->purgable == VM_PURGABLE_VOLATILE)) {
- queue_enter(&vm_page_queue_throttled, m, vm_page_t, pageq);
- m->throttled = TRUE;
+ vm_page_check_pageable_safe(m);
+ if (!VM_DYNAMIC_PAGING_ENABLED() &&
+ m->dirty && m_object->internal &&
+ (m_object->purgable == VM_PURGABLE_DENY ||
+ m_object->purgable == VM_PURGABLE_NONVOLATILE ||
+ m_object->purgable == VM_PURGABLE_VOLATILE)) {
+ vm_page_queue_enter(&vm_page_queue_throttled, m, vm_page_t, pageq);
+ m->vm_page_q_state = VM_PAGE_ON_THROTTLED_Q;
vm_page_throttled_count++;
} else {
- queue_enter(&vm_page_queue_active, m, vm_page_t, pageq);
- m->active = TRUE;
- vm_page_active_count++;
- if (m->object->internal) {
- vm_page_pageable_internal_count++;
- } else {
- vm_page_pageable_external_count++;
- }
-#if LATENCY_JETSAM
- if (jlp_init) {
- uint64_t now = mach_absolute_time();
- uint64_t delta = now - jlp_time;
- clock_sec_t jl_secs = 0;
- clock_usec_t jl_usecs = 0;
- vm_page_t jlp;
-
- absolutetime_to_microtime(delta, &jl_secs, &jl_usecs);
-
- jl_usecs += jl_secs * USEC_PER_SEC;
- if (jl_usecs >= JETSAM_LATENCY_TOKEN_AGE) {
-
- jlp = &jetsam_latency_page[jlp_current];
- if (jlp->active) {
- queue_remove(&vm_page_queue_active, jlp, vm_page_t, pageq);
- }
- queue_enter(&vm_page_queue_active, jlp, vm_page_t, pageq);
-
- jlp->active = TRUE;
-
- jlp->offset = now;
- jlp_time = jlp->offset;
-
- if(++jlp_current == NUM_OF_JETSAM_LATENCY_TOKENS) {
- jlp_current = 0;
- }
-
- }
- }
-#endif /* LATENCY_JETSAM */
+#if CONFIG_SECLUDED_MEMORY
+ if (secluded_for_filecache &&
+ vm_page_secluded_target != 0 &&
+ num_tasks_can_use_secluded_mem == 0 &&
+ m_object->eligible_for_secluded &&
+ ((secluded_aging_policy == SECLUDED_AGING_FIFO) ||
+ (secluded_aging_policy ==
+ SECLUDED_AGING_ALONG_ACTIVE) ||
+ (secluded_aging_policy ==
+ SECLUDED_AGING_BEFORE_ACTIVE))) {
+ vm_page_queue_enter(&vm_page_queue_secluded, m,
+ vm_page_t, pageq);
+ m->vm_page_q_state = VM_PAGE_ON_SECLUDED_Q;
+ vm_page_secluded_count++;
+ vm_page_secluded_count_inuse++;
+ assert(!m_object->internal);
+// vm_page_pageable_external_count++;
+ } else
+#endif /* CONFIG_SECLUDED_MEMORY */
+ vm_page_enqueue_active(m, FALSE);
}
m->reference = TRUE;
m->no_cache = FALSE;
boolean_t new)
{
struct vm_speculative_age_q *aq;
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(m);
VM_PAGE_CHECK(m);
- assert(m->object != kernel_object);
- assert(m->phys_page != vm_page_guard_addr);
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
-#endif
+ vm_page_check_pageable_safe(m);
+
+ assert(VM_PAGE_GET_PHYS_PAGE(m) != vm_page_guard_addr);
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
assert( !(m->absent && !m->unusual));
+ assert(m_object->internal == FALSE);
/*
* if this page is currently on the pageout queue, we can't do the
- * VM_PAGE_QUEUES_REMOVE (which doesn't handle the pageout queue case)
+ * vm_page_queues_remove (which doesn't handle the pageout queue case)
* and we can't remove it manually since we would need the object lock
* (which is not required here) to decrement the activity_in_progress
* reference which is held on the object while the page is in the pageout queue...
* just let the normal laundry processing proceed
*/
- if (m->pageout_queue || m->private || m->fictitious || m->compressor)
+ if (m->laundry || m->private || m->fictitious ||
+ (m->vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR) ||
+ (m->vm_page_q_state == VM_PAGE_ON_PAGEOUT_Q))
return;
- VM_PAGE_QUEUES_REMOVE(m);
+ vm_page_queues_remove(m, FALSE);
if ( !VM_PAGE_WIRED(m)) {
mach_timespec_t ts;
}
aq = &vm_page_queue_speculative[speculative_age_index];
- if (!queue_empty(&aq->age_q))
+ if (!vm_page_queue_empty(&aq->age_q))
vm_page_speculate_ageit(aq);
aq->age_ts.tv_sec = vm_page_speculative_q_age_ms / 1000;
ADD_MACH_TIMESPEC(&aq->age_ts, &ts);
}
}
- enqueue_tail(&aq->age_q, &m->pageq);
- m->speculative = TRUE;
+ vm_page_enqueue_tail(&aq->age_q, &m->pageq);
+ m->vm_page_q_state = VM_PAGE_ON_SPECULATIVE_Q;
vm_page_speculative_count++;
- if (m->object->internal) {
- vm_page_pageable_internal_count++;
- } else {
- vm_page_pageable_external_count++;
- }
+ vm_page_pageable_external_count++;
if (new == TRUE) {
- vm_object_lock_assert_exclusive(m->object);
+ vm_object_lock_assert_exclusive(m_object);
- m->object->pages_created++;
+ m_object->pages_created++;
#if DEVELOPMENT || DEBUG
vm_page_speculative_created++;
#endif
sq = &vm_page_queue_speculative[VM_PAGE_SPECULATIVE_AGED_Q];
- if (queue_empty(&sq->age_q)) {
+ if (vm_page_queue_empty(&sq->age_q)) {
sq->age_q.next = aq->age_q.next;
sq->age_q.prev = aq->age_q.prev;
- t = (vm_page_t)sq->age_q.next;
- t->pageq.prev = &sq->age_q;
+ t = (vm_page_t)VM_PAGE_UNPACK_PTR(sq->age_q.next);
+ t->pageq.prev = VM_PAGE_PACK_PTR(&sq->age_q);
- t = (vm_page_t)sq->age_q.prev;
- t->pageq.next = &sq->age_q;
+ t = (vm_page_t)VM_PAGE_UNPACK_PTR(sq->age_q.prev);
+ t->pageq.next = VM_PAGE_PACK_PTR(&sq->age_q);
} else {
- t = (vm_page_t)sq->age_q.prev;
+ t = (vm_page_t)VM_PAGE_UNPACK_PTR(sq->age_q.prev);
t->pageq.next = aq->age_q.next;
- t = (vm_page_t)aq->age_q.next;
+ t = (vm_page_t)VM_PAGE_UNPACK_PTR(aq->age_q.next);
t->pageq.prev = sq->age_q.prev;
- t = (vm_page_t)aq->age_q.prev;
- t->pageq.next = &sq->age_q;
+ t = (vm_page_t)VM_PAGE_UNPACK_PTR(aq->age_q.prev);
+ t->pageq.next = VM_PAGE_PACK_PTR(&sq->age_q);
sq->age_q.prev = aq->age_q.prev;
}
- queue_init(&aq->age_q);
+ vm_page_queue_init(&aq->age_q);
}
vm_page_t m)
{
VM_PAGE_CHECK(m);
- assert(m->object != kernel_object);
- assert(m->phys_page != vm_page_guard_addr);
+ assert(VM_PAGE_OBJECT(m) != kernel_object);
+ assert(VM_PAGE_GET_PHYS_PAGE(m) != vm_page_guard_addr);
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
-#endif
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
/*
* if this page is currently on the pageout queue, we can't do the
- * VM_PAGE_QUEUES_REMOVE (which doesn't handle the pageout queue case)
+ * vm_page_queues_remove (which doesn't handle the pageout queue case)
* and we can't remove it manually since we would need the object lock
* (which is not required here) to decrement the activity_in_progress
* reference which is held on the object while the page is in the pageout queue...
* just let the normal laundry processing proceed
*/
- if (m->pageout_queue || m->private || m->compressor || (VM_PAGE_WIRED(m)))
+ if (m->laundry || m->private ||
+ (m->vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR) ||
+ (m->vm_page_q_state == VM_PAGE_ON_PAGEOUT_Q) ||
+ VM_PAGE_WIRED(m))
return;
m->no_cache = FALSE;
- VM_PAGE_QUEUES_REMOVE(m);
+ vm_page_queues_remove(m, FALSE);
- VM_PAGE_ENQUEUE_INACTIVE(m, FALSE);
+ vm_page_enqueue_inactive(m, FALSE);
}
vm_page_t m;
int extra_active_count;
int extra_internal_count, extra_external_count;
+ vm_object_t m_object;
- if (!VM_DYNAMIC_PAGING_ENABLED(memory_manager_default))
+ if (!VM_DYNAMIC_PAGING_ENABLED())
return;
extra_active_count = 0;
extra_internal_count = 0;
extra_external_count = 0;
vm_page_lock_queues();
- if (! queue_empty(&vm_page_queue_throttled)) {
+ if (! vm_page_queue_empty(&vm_page_queue_throttled)) {
/*
* Switch "throttled" pages to "active".
*/
- queue_iterate(&vm_page_queue_throttled, m, vm_page_t, pageq) {
+ vm_page_queue_iterate(&vm_page_queue_throttled, m, vm_page_t, pageq) {
VM_PAGE_CHECK(m);
- assert(m->throttled);
- assert(!m->active);
- assert(!m->inactive);
- assert(!m->speculative);
- assert(!VM_PAGE_WIRED(m));
+ assert(m->vm_page_q_state == VM_PAGE_ON_THROTTLED_Q);
+
+ m_object = VM_PAGE_OBJECT(m);
extra_active_count++;
- if (m->object->internal) {
+ if (m_object->internal) {
extra_internal_count++;
} else {
extra_external_count++;
}
- m->throttled = FALSE;
- m->active = TRUE;
+ m->vm_page_q_state = VM_PAGE_ON_ACTIVE_Q;
VM_PAGE_CHECK(m);
+#if CONFIG_BACKGROUND_QUEUE
+ if (m->vm_page_in_background)
+ vm_page_add_to_backgroundq(m, FALSE);
+#endif
}
/*
* get re-evaluated by the LRU algorithm first, since they've been
* completely out of it until now.
*/
- first_throttled = (vm_page_t) queue_first(&vm_page_queue_throttled);
- last_throttled = (vm_page_t) queue_last(&vm_page_queue_throttled);
- first_active = (vm_page_t) queue_first(&vm_page_queue_active);
- if (queue_empty(&vm_page_queue_active)) {
- queue_last(&vm_page_queue_active) = (queue_entry_t) last_throttled;
+ first_throttled = (vm_page_t) vm_page_queue_first(&vm_page_queue_throttled);
+ last_throttled = (vm_page_t) vm_page_queue_last(&vm_page_queue_throttled);
+ first_active = (vm_page_t) vm_page_queue_first(&vm_page_queue_active);
+ if (vm_page_queue_empty(&vm_page_queue_active)) {
+ vm_page_queue_active.prev = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(last_throttled);
} else {
- queue_prev(&first_active->pageq) = (queue_entry_t) last_throttled;
+ first_active->pageq.prev = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(last_throttled);
}
- queue_first(&vm_page_queue_active) = (queue_entry_t) first_throttled;
- queue_prev(&first_throttled->pageq) = (queue_entry_t) &vm_page_queue_active;
- queue_next(&last_throttled->pageq) = (queue_entry_t) first_active;
+ vm_page_queue_active.next = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(first_throttled);
+ first_throttled->pageq.prev = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(&vm_page_queue_active);
+ last_throttled->pageq.next = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(first_active);
#if DEBUG
printf("reactivated %d throttled pages\n", vm_page_throttled_count);
#endif
- queue_init(&vm_page_queue_throttled);
+ vm_page_queue_init(&vm_page_queue_throttled);
/*
* Adjust the global page counts.
*/
vm_page_throttled_count = 0;
}
assert(vm_page_throttled_count == 0);
- assert(queue_empty(&vm_page_queue_throttled));
+ assert(vm_page_queue_empty(&vm_page_queue_throttled));
vm_page_unlock_queues();
}
/*
* Switch "local" pages to "active".
*/
- assert(!queue_empty(&lq->vpl_queue));
+ assert(!vm_page_queue_empty(&lq->vpl_queue));
- queue_iterate(&lq->vpl_queue, m, vm_page_t, pageq) {
+ vm_page_queue_iterate(&lq->vpl_queue, m, vm_page_t, pageq) {
VM_PAGE_CHECK(m);
- assert(m->local);
- assert(!m->active);
- assert(!m->inactive);
- assert(!m->speculative);
- assert(!VM_PAGE_WIRED(m));
- assert(!m->throttled);
+ vm_page_check_pageable_safe(m);
+ assert(m->vm_page_q_state == VM_PAGE_ON_ACTIVE_LOCAL_Q);
assert(!m->fictitious);
if (m->local_id != lid)
panic("vm_page_reactivate_local: found vm_page_t(%p) with wrong cpuid", m);
m->local_id = 0;
- m->local = FALSE;
- m->active = TRUE;
+ m->vm_page_q_state = VM_PAGE_ON_ACTIVE_Q;
VM_PAGE_CHECK(m);
-
+#if CONFIG_BACKGROUND_QUEUE
+ if (m->vm_page_in_background)
+ vm_page_add_to_backgroundq(m, FALSE);
+#endif
count++;
}
if (count != lq->vpl_count)
/*
* Transfer the entire local queue to a regular LRU page queues.
*/
- first_local = (vm_page_t) queue_first(&lq->vpl_queue);
- last_local = (vm_page_t) queue_last(&lq->vpl_queue);
- first_active = (vm_page_t) queue_first(&vm_page_queue_active);
+ first_local = (vm_page_t) vm_page_queue_first(&lq->vpl_queue);
+ last_local = (vm_page_t) vm_page_queue_last(&lq->vpl_queue);
+ first_active = (vm_page_t) vm_page_queue_first(&vm_page_queue_active);
- if (queue_empty(&vm_page_queue_active)) {
- queue_last(&vm_page_queue_active) = (queue_entry_t) last_local;
+ if (vm_page_queue_empty(&vm_page_queue_active)) {
+ vm_page_queue_active.prev = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(last_local);
} else {
- queue_prev(&first_active->pageq) = (queue_entry_t) last_local;
+ first_active->pageq.prev = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(last_local);
}
- queue_first(&vm_page_queue_active) = (queue_entry_t) first_local;
- queue_prev(&first_local->pageq) = (queue_entry_t) &vm_page_queue_active;
- queue_next(&last_local->pageq) = (queue_entry_t) first_active;
+ vm_page_queue_active.next = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(first_local);
+ first_local->pageq.prev = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(&vm_page_queue_active);
+ last_local->pageq.next = VM_PAGE_CONVERT_TO_QUEUE_ENTRY(first_active);
- queue_init(&lq->vpl_queue);
+ vm_page_queue_init(&lq->vpl_queue);
/*
* Adjust the global page counts.
*/
lq->vpl_internal_count = 0;
lq->vpl_external_count = 0;
}
- assert(queue_empty(&lq->vpl_queue));
+ assert(vm_page_queue_empty(&lq->vpl_queue));
if (nolocks == FALSE) {
VPL_UNLOCK(&lq->vpl_lock);
#endif
#ifdef PMAP_ZERO_PART_PAGE_IMPLEMENTED
- pmap_zero_part_page(m->phys_page, m_pa, len);
+ pmap_zero_part_page(VM_PAGE_GET_PHYS_PAGE(m), m_pa, len);
#else
vm_page_t tmp;
while (1) {
vm_page_t m)
{
XPR(XPR_VM_PAGE,
- "vm_page_zero_fill, object 0x%X offset 0x%X page 0x%X\n",
- m->object, m->offset, m, 0,0);
+ "vm_page_zero_fill, object 0x%X offset 0x%X page 0x%X\n",
+ VM_PAGE_OBJECT(m), m->offset, m, 0,0);
#if 0
/*
* we don't hold the page queue lock
VM_PAGE_CHECK(m);
#endif
-// dbgTrace(0xAEAEAEAE, m->phys_page, 0); /* (BRINGUP) */
- pmap_zero_page(m->phys_page);
+// dbgTrace(0xAEAEAEAE, VM_PAGE_GET_PHYS_PAGE(m), 0); /* (BRINGUP) */
+ pmap_zero_page(VM_PAGE_GET_PHYS_PAGE(m));
}
/*
VM_PAGE_CHECK(src_m);
VM_PAGE_CHECK(dst_m);
#endif
- pmap_copy_part_page(src_m->phys_page, src_pa,
- dst_m->phys_page, dst_pa, len);
+ pmap_copy_part_page(VM_PAGE_GET_PHYS_PAGE(src_m), src_pa,
+ VM_PAGE_GET_PHYS_PAGE(dst_m), dst_pa, len);
}
/*
vm_page_t src_m,
vm_page_t dest_m)
{
+ vm_object_t src_m_object;
+
+ src_m_object = VM_PAGE_OBJECT(src_m);
+
XPR(XPR_VM_PAGE,
- "vm_page_copy, object 0x%X offset 0x%X to object 0x%X offset 0x%X\n",
- src_m->object, src_m->offset,
- dest_m->object, dest_m->offset,
- 0);
+ "vm_page_copy, object 0x%X offset 0x%X to object 0x%X offset 0x%X\n",
+ src_m_object, src_m->offset,
+ VM_PAGE_OBJECT(dest_m), dest_m->offset,
+ 0);
#if 0
/*
* we don't hold the page queue lock
VM_PAGE_CHECK(src_m);
VM_PAGE_CHECK(dest_m);
#endif
- vm_object_lock_assert_held(src_m->object);
+ vm_object_lock_assert_held(src_m_object);
/*
* ENCRYPTED SWAP:
}
dest_m->encrypted = FALSE;
- if (src_m->object != VM_OBJECT_NULL &&
- src_m->object->code_signed) {
+ if (src_m_object != VM_OBJECT_NULL &&
+ src_m_object->code_signed) {
/*
* We're copying a page from a code-signed object.
* Whoever ends up mapping the copy page might care about
*/
vm_page_copy_cs_validations++;
vm_page_validate_cs(src_m);
+#if DEVELOPMENT || DEBUG
+ DTRACE_VM4(codesigned_copy,
+ vm_object_t, src_m_object,
+ vm_object_offset_t, src_m->offset,
+ int, src_m->cs_validated,
+ int, src_m->cs_tainted);
+#endif /* DEVELOPMENT || DEBUG */
+
}
if (vm_page_is_slideable(src_m)) {
}
dest_m->slid = src_m->slid;
dest_m->error = src_m->error; /* sliding src_m might have failed... */
- pmap_copy_page(src_m->phys_page, dest_m->phys_page);
+ pmap_copy_page(VM_PAGE_GET_PHYS_PAGE(src_m), VM_PAGE_GET_PHYS_PAGE(dest_m));
}
#if MACH_ASSERT
vm_page_t p)
{
printf("vm_page %p: \n", p);
- printf(" pageq: next=%p prev=%p\n", p->pageq.next, p->pageq.prev);
- printf(" listq: next=%p prev=%p\n", p->listq.next, p->listq.prev);
- printf(" next=%p\n", p->next);
- printf(" object=%p offset=0x%llx\n", p->object, p->offset);
+ printf(" pageq: next=%p prev=%p\n",
+ (vm_page_t)VM_PAGE_UNPACK_PTR(p->pageq.next),
+ (vm_page_t)VM_PAGE_UNPACK_PTR(p->pageq.prev));
+ printf(" listq: next=%p prev=%p\n",
+ (vm_page_t)(VM_PAGE_UNPACK_PTR(p->listq.next)),
+ (vm_page_t)(VM_PAGE_UNPACK_PTR(p->listq.prev)));
+ printf(" next=%p\n", (vm_page_t)(VM_PAGE_UNPACK_PTR(p->next_m)));
+ printf(" object=%p offset=0x%llx\n",VM_PAGE_OBJECT(p), p->offset);
printf(" wire_count=%u\n", p->wire_count);
+ printf(" q_state=%u\n", p->vm_page_q_state);
- printf(" %slocal, %sinactive, %sactive, %spageout_queue, %sspeculative, %slaundry\n",
- (p->local ? "" : "!"),
- (p->inactive ? "" : "!"),
- (p->active ? "" : "!"),
- (p->pageout_queue ? "" : "!"),
- (p->speculative ? "" : "!"),
- (p->laundry ? "" : "!"));
- printf(" %sfree, %sref, %sgobbled, %sprivate, %sthrottled\n",
- (p->free ? "" : "!"),
+ printf(" %slaundry, %sref, %sgobbled, %sprivate\n",
+ (p->laundry ? "" : "!"),
(p->reference ? "" : "!"),
(p->gobbled ? "" : "!"),
- (p->private ? "" : "!"),
- (p->throttled ? "" : "!"));
+ (p->private ? "" : "!"));
printf(" %sbusy, %swanted, %stabled, %sfictitious, %spmapped, %swpmapped\n",
- (p->busy ? "" : "!"),
- (p->wanted ? "" : "!"),
- (p->tabled ? "" : "!"),
- (p->fictitious ? "" : "!"),
- (p->pmapped ? "" : "!"),
- (p->wpmapped ? "" : "!"));
- printf(" %spageout, %sabsent, %serror, %sdirty, %scleaning, %sprecious, %sclustered\n",
- (p->pageout ? "" : "!"),
+ (p->busy ? "" : "!"),
+ (p->wanted ? "" : "!"),
+ (p->tabled ? "" : "!"),
+ (p->fictitious ? "" : "!"),
+ (p->pmapped ? "" : "!"),
+ (p->wpmapped ? "" : "!"));
+ printf(" %sfree_when_done, %sabsent, %serror, %sdirty, %scleaning, %sprecious, %sclustered\n",
+ (p->free_when_done ? "" : "!"),
(p->absent ? "" : "!"),
(p->error ? "" : "!"),
(p->dirty ? "" : "!"),
(p->unusual ? "" : "!"),
(p->encrypted ? "" : "!"),
(p->encrypted_cleaning ? "" : "!"));
- printf(" %scs_validated, %scs_tainted, %sno_cache\n",
+ printf(" %scs_validated, %scs_tainted, %scs_nx, %sno_cache\n",
(p->cs_validated ? "" : "!"),
(p->cs_tainted ? "" : "!"),
+ (p->cs_nx ? "" : "!"),
(p->no_cache ? "" : "!"));
- printf("phys_page=0x%x\n", p->phys_page);
+ printf("phys_page=0x%x\n", VM_PAGE_GET_PHYS_PAGE(p));
}
/*
vm_page_t pages,
unsigned int npages)
{
- register vm_page_t m;
+ vm_page_t m;
unsigned int page_count;
vm_offset_t prev_addr;
- prev_addr = pages->phys_page;
+ prev_addr = VM_PAGE_GET_PHYS_PAGE(pages);
page_count = 1;
for (m = NEXT_PAGE(pages); m != VM_PAGE_NULL; m = NEXT_PAGE(m)) {
- if (m->phys_page != prev_addr + 1) {
+ if (VM_PAGE_GET_PHYS_PAGE(m) != prev_addr + 1) {
printf("m %p prev_addr 0x%lx, current addr 0x%x\n",
- m, (long)prev_addr, m->phys_page);
+ m, (long)prev_addr, VM_PAGE_GET_PHYS_PAGE(m));
printf("pages %p page_count %d npages %d\n", pages, page_count, npages);
panic("vm_page_verify_contiguous: not contiguous!");
}
- prev_addr = m->phys_page;
+ prev_addr = VM_PAGE_GET_PHYS_PAGE(m);
++page_count;
}
if (page_count != npages) {
/*
* Check the free lists for proper length etc.
*/
+static boolean_t vm_page_verify_this_free_list_enabled = FALSE;
static unsigned int
vm_page_verify_free_list(
- queue_head_t *vm_page_queue,
+ vm_page_queue_head_t *vm_page_queue,
unsigned int color,
vm_page_t look_for_page,
boolean_t expect_page)
vm_page_t prev_m;
boolean_t found_page;
+ if (! vm_page_verify_this_free_list_enabled)
+ return 0;
+
found_page = FALSE;
npages = 0;
- prev_m = (vm_page_t) vm_page_queue;
- queue_iterate(vm_page_queue,
- m,
- vm_page_t,
- pageq) {
+ prev_m = (vm_page_t)((uintptr_t)vm_page_queue);
+
+ vm_page_queue_iterate(vm_page_queue,
+ m,
+ vm_page_t,
+ pageq) {
if (m == look_for_page) {
found_page = TRUE;
}
- if ((vm_page_t) m->pageq.prev != prev_m)
+ if ((vm_page_t)VM_PAGE_UNPACK_PTR(m->pageq.prev) != prev_m)
panic("vm_page_verify_free_list(color=%u, npages=%u): page %p corrupted prev ptr %p instead of %p\n",
- color, npages, m, m->pageq.prev, prev_m);
+ color, npages, m, (vm_page_t)VM_PAGE_UNPACK_PTR(m->pageq.prev), prev_m);
if ( ! m->busy )
panic("vm_page_verify_free_list(color=%u, npages=%u): page %p not busy\n",
color, npages, m);
if (color != (unsigned int) -1) {
- if ((m->phys_page & vm_color_mask) != color)
+ if ((VM_PAGE_GET_PHYS_PAGE(m) & vm_color_mask) != color)
panic("vm_page_verify_free_list(color=%u, npages=%u): page %p wrong color %u instead of %u\n",
- color, npages, m, m->phys_page & vm_color_mask, color);
- if ( ! m->free )
- panic("vm_page_verify_free_list(color=%u, npages=%u): page %p not free\n",
- color, npages, m);
+ color, npages, m, VM_PAGE_GET_PHYS_PAGE(m) & vm_color_mask, color);
+ if (m->vm_page_q_state != VM_PAGE_ON_FREE_Q)
+ panic("vm_page_verify_free_list(color=%u, npages=%u): page %p - expecting q_state == VM_PAGE_ON_FREE_Q, found %d\n",
+ color, npages, m, m->vm_page_q_state);
+ } else {
+ if (m->vm_page_q_state != VM_PAGE_ON_FREE_LOCAL_Q)
+ panic("vm_page_verify_free_list(npages=%u): local page %p - expecting q_state == VM_PAGE_ON_FREE_LOCAL_Q, found %d\n",
+ npages, m, m->vm_page_q_state);
}
++npages;
prev_m = m;
if (expect_page && !found_page) {
printf("vm_page_verify_free_list(color=%u, npages=%u): page %p not found phys=%u\n",
- color, npages, look_for_page, look_for_page->phys_page);
+ color, npages, look_for_page, VM_PAGE_GET_PHYS_PAGE(look_for_page));
_vm_page_print(look_for_page);
for (other_color = 0;
other_color < vm_colors;
other_color++) {
if (other_color == color)
continue;
- vm_page_verify_free_list(&vm_page_queue_free[other_color],
+ vm_page_verify_free_list(&vm_page_queue_free[other_color].qhead,
other_color, look_for_page, FALSE);
}
if (color == (unsigned int) -1) {
}
if (!expect_page && found_page) {
printf("vm_page_verify_free_list(color=%u, npages=%u): page %p found phys=%u\n",
- color, npages, look_for_page, look_for_page->phys_page);
+ color, npages, look_for_page, VM_PAGE_GET_PHYS_PAGE(look_for_page));
}
}
return npages;
}
-static boolean_t vm_page_verify_free_lists_enabled = FALSE;
+static boolean_t vm_page_verify_all_free_lists_enabled = FALSE;
static void
vm_page_verify_free_lists( void )
{
unsigned int color, npages, nlopages;
+ boolean_t toggle = TRUE;
- if (! vm_page_verify_free_lists_enabled)
+ if (! vm_page_verify_all_free_lists_enabled)
return;
npages = 0;
lck_mtx_lock(&vm_page_queue_free_lock);
+
+ if (vm_page_verify_this_free_list_enabled == TRUE) {
+ /*
+ * This variable has been set globally for extra checking of
+ * each free list Q. Since we didn't set it, we don't own it
+ * and we shouldn't toggle it.
+ */
+ toggle = FALSE;
+ }
+
+ if (toggle == TRUE) {
+ vm_page_verify_this_free_list_enabled = TRUE;
+ }
for( color = 0; color < vm_colors; color++ ) {
- npages += vm_page_verify_free_list(&vm_page_queue_free[color],
+ npages += vm_page_verify_free_list(&vm_page_queue_free[color].qhead,
color, VM_PAGE_NULL, FALSE);
}
nlopages = vm_page_verify_free_list(&vm_lopage_queue_free,
"npages %u free_count %d nlopages %u lo_free_count %u",
npages, vm_page_free_count, nlopages, vm_lopage_free_count);
+ if (toggle == TRUE) {
+ vm_page_verify_this_free_list_enabled = FALSE;
+ }
+
lck_mtx_unlock(&vm_page_queue_free_lock);
}
-void
-vm_page_queues_assert(
- vm_page_t mem,
- int val)
-{
-#if DEBUG
- lck_mtx_assert(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
-#endif
- if (mem->free + mem->active + mem->inactive + mem->speculative +
- mem->throttled + mem->pageout_queue > (val)) {
- _vm_page_print(mem);
- panic("vm_page_queues_assert(%p, %d)\n", mem, val);
- }
- if (VM_PAGE_WIRED(mem)) {
- assert(!mem->active);
- assert(!mem->inactive);
- assert(!mem->speculative);
- assert(!mem->throttled);
- assert(!mem->pageout_queue);
- }
-}
#endif /* MACH_ASSERT */
+
+
+
+extern boolean_t (* volatile consider_buffer_cache_collect)(int);
+
/*
* CONTIGUOUS PAGE ALLOCATION
*
unsigned int idx_last_contig_page_found = 0;
int free_considered, free_available;
int substitute_needed;
- boolean_t wrapped;
+ boolean_t wrapped, zone_gc_called = FALSE;
#if DEBUG
clock_sec_t tv_start_sec, tv_end_sec;
clock_usec_t tv_start_usec, tv_end_usec;
#endif
-#if MACH_ASSERT
+
int yielded = 0;
int dumped_run = 0;
int stolen_pages = 0;
int compressed_pages = 0;
-#endif
+
if (contig_pages == 0)
return VM_PAGE_NULL;
+full_scan_again:
+
#if MACH_ASSERT
vm_page_verify_free_lists();
#endif
PAGE_REPLACEMENT_ALLOWED(TRUE);
vm_page_lock_queues();
+
+
lck_mtx_lock(&vm_page_queue_free_lock);
RESET_STATE_OF_RUN();
assert(!m->fictitious);
assert(!m->private);
- if (max_pnum && m->phys_page > max_pnum) {
+ if (max_pnum && VM_PAGE_GET_PHYS_PAGE(m) > max_pnum) {
/* no more low pages... */
break;
}
- if (!npages & ((m->phys_page & pnum_mask) != 0)) {
+ if (!npages & ((VM_PAGE_GET_PHYS_PAGE(m) & pnum_mask) != 0)) {
/*
* not aligned
*/
RESET_STATE_OF_RUN();
} else if (VM_PAGE_WIRED(m) || m->gobbled ||
- m->encrypted_cleaning ||
- m->pageout_queue || m->laundry || m->wanted ||
- m->cleaning || m->overwriting || m->pageout) {
+ m->encrypted_cleaning || m->laundry || m->wanted ||
+ m->cleaning || m->overwriting || m->free_when_done) {
/*
* page is in a transient state
* or a state we don't want to deal
*/
RESET_STATE_OF_RUN();
- } else if (!m->free && !m->active && !m->inactive && !m->speculative && !m->throttled && !m->compressor) {
+ } else if ((m->vm_page_q_state == VM_PAGE_NOT_ON_Q) ||
+ (m->vm_page_q_state == VM_PAGE_ON_FREE_LOCAL_Q) ||
+ (m->vm_page_q_state == VM_PAGE_ON_FREE_LOPAGE_Q) ||
+ (m->vm_page_q_state == VM_PAGE_ON_PAGEOUT_Q)) {
/*
- * page needs to be on one of our queues
- * or it needs to belong to the compressor pool
+ * page needs to be on one of our queues (other then the pageout or special free queues)
+ * or it needs to belong to the compressor pool (which is now indicated
+ * by vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR and falls out
+ * from the check for VM_PAGE_NOT_ON_Q)
* in order for it to be stable behind the
* locks we hold at this point...
* if not, don't consider it which
*/
RESET_STATE_OF_RUN();
- } else if (!m->free && (!m->tabled || m->busy)) {
+ } else if ((m->vm_page_q_state != VM_PAGE_ON_FREE_Q) && (!m->tabled || m->busy)) {
/*
* pages on the free list are always 'busy'
* so we couldn't test for 'busy' in the check
RESET_STATE_OF_RUN();
} else {
- if (m->phys_page != prevcontaddr + 1) {
- if ((m->phys_page & pnum_mask) != 0) {
+ if (VM_PAGE_GET_PHYS_PAGE(m) != prevcontaddr + 1) {
+ if ((VM_PAGE_GET_PHYS_PAGE(m) & pnum_mask) != 0) {
RESET_STATE_OF_RUN();
goto did_consider;
} else {
npages = 1;
start_idx = page_idx;
- start_pnum = m->phys_page;
+ start_pnum = VM_PAGE_GET_PHYS_PAGE(m);
}
} else {
npages++;
}
- prevcontaddr = m->phys_page;
+ prevcontaddr = VM_PAGE_GET_PHYS_PAGE(m);
VM_PAGE_CHECK(m);
- if (m->free) {
+ if (m->vm_page_q_state == VM_PAGE_ON_FREE_Q) {
free_considered++;
} else {
/*
*/
free_available = vm_page_free_count - vm_page_free_reserved;
considered = 0;
-#if MACH_ASSERT
+
yielded++;
-#endif
+
goto retry;
}
considered++;
m1 = &vm_pages[start_idx++];
#if !VM_PAGE_FIND_CONTIGUOUS_CAN_STEAL
- assert(m1->free);
+ assert(m1->vm_page_q_state == VM_PAGE_ON_FREE_Q);
#endif
- if (m1->free) {
+ if (m1->vm_page_q_state == VM_PAGE_ON_FREE_Q) {
unsigned int color;
- color = m1->phys_page & vm_color_mask;
+ color = VM_PAGE_GET_PHYS_PAGE(m1) & vm_color_mask;
#if MACH_ASSERT
- vm_page_verify_free_list(&vm_page_queue_free[color], color, m1, TRUE);
+ vm_page_verify_free_list(&vm_page_queue_free[color].qhead, color, m1, TRUE);
#endif
- queue_remove(&vm_page_queue_free[color],
- m1,
- vm_page_t,
- pageq);
- m1->pageq.next = NULL;
- m1->pageq.prev = NULL;
+ vm_page_queue_remove(&vm_page_queue_free[color].qhead,
+ m1,
+ vm_page_t,
+ pageq);
+
+ VM_PAGE_ZERO_PAGEQ_ENTRY(m1);
#if MACH_ASSERT
- vm_page_verify_free_list(&vm_page_queue_free[color], color, VM_PAGE_NULL, FALSE);
+ vm_page_verify_free_list(&vm_page_queue_free[color].qhead, color, VM_PAGE_NULL, FALSE);
#endif
/*
* Clear the "free" bit so that this page
* does not get considered for another
* concurrent physically-contiguous allocation.
*/
- m1->free = FALSE;
+ m1->vm_page_q_state = VM_PAGE_NOT_ON_Q;
assert(m1->busy);
vm_page_free_count--;
}
}
- /*
- * adjust global freelist counts
- */
- if (vm_page_free_count < vm_page_free_count_minimum)
- vm_page_free_count_minimum = vm_page_free_count;
-
if( flags & KMA_LOMEM)
vm_page_lomem_find_contiguous_last_idx = page_idx;
else
*/
m1 = &vm_pages[cur_idx--];
- assert(!m1->free);
-
- if (m1->object == VM_OBJECT_NULL) {
+ if (m1->vm_page_object == 0) {
/*
* page has already been removed from
* the free list in the 1st pass
*/
+ assert(m1->vm_page_q_state == VM_PAGE_NOT_ON_Q);
assert(m1->offset == (vm_object_offset_t) -1);
assert(m1->busy);
assert(!m1->wanted);
if (abort_run == TRUE)
continue;
- object = m1->object;
+ assert(m1->vm_page_q_state != VM_PAGE_NOT_ON_Q);
+
+ object = VM_PAGE_OBJECT(m1);
if (object != locked_object) {
if (locked_object) {
}
if (locked_object == VM_OBJECT_NULL ||
(VM_PAGE_WIRED(m1) || m1->gobbled ||
- m1->encrypted_cleaning ||
- m1->pageout_queue || m1->laundry || m1->wanted ||
- m1->cleaning || m1->overwriting || m1->pageout || m1->busy)) {
+ m1->encrypted_cleaning || m1->laundry || m1->wanted ||
+ m1->cleaning || m1->overwriting || m1->free_when_done || m1->busy) ||
+ (m1->vm_page_q_state == VM_PAGE_ON_PAGEOUT_Q)) {
if (locked_object) {
vm_object_unlock(locked_object);
reusable = FALSE;
if ((m1->reusable ||
- m1->object->all_reusable) &&
- m1->inactive &&
+ object->all_reusable) &&
+ (m1->vm_page_q_state == VM_PAGE_ON_INACTIVE_INTERNAL_Q) &&
!m1->dirty &&
!m1->reference) {
/* reusable page... */
- refmod = pmap_disconnect(m1->phys_page);
+ refmod = pmap_disconnect(VM_PAGE_GET_PHYS_PAGE(m1));
disconnected = TRUE;
if (refmod == 0) {
/*
}
if (! disconnected) {
if (m1->pmapped)
- refmod = pmap_disconnect(m1->phys_page);
+ refmod = pmap_disconnect(VM_PAGE_GET_PHYS_PAGE(m1));
else
refmod = 0;
}
/* copy the page's contents */
- pmap_copy_page(m1->phys_page, m2->phys_page);
+ pmap_copy_page(VM_PAGE_GET_PHYS_PAGE(m1), VM_PAGE_GET_PHYS_PAGE(m2));
/* copy the page's state */
assert(!VM_PAGE_WIRED(m1));
- assert(!m1->free);
- assert(!m1->pageout_queue);
+ assert(m1->vm_page_q_state != VM_PAGE_ON_FREE_Q);
+ assert(m1->vm_page_q_state != VM_PAGE_ON_PAGEOUT_Q);
assert(!m1->laundry);
m2->reference = m1->reference;
assert(!m1->gobbled);
assert(!m1->private);
m2->no_cache = m1->no_cache;
- m2->xpmapped = m1->xpmapped;
+ m2->xpmapped = 0;
assert(!m1->busy);
assert(!m1->wanted);
assert(!m1->fictitious);
m2->pmapped = m1->pmapped; /* should flush cache ? */
m2->wpmapped = m1->wpmapped;
- assert(!m1->pageout);
+ assert(!m1->free_when_done);
m2->absent = m1->absent;
m2->error = m1->error;
m2->dirty = m1->dirty;
assert(!m1->encrypted_cleaning);
m2->cs_validated = m1->cs_validated;
m2->cs_tainted = m1->cs_tainted;
+ m2->cs_nx = m1->cs_nx;
/*
* If m1 had really been reusable,
// m2->reusable = m1->reusable;
assert(!m2->reusable);
- assert(!m1->lopage);
+ // assert(!m1->lopage);
m2->slid = m1->slid;
- m2->was_dirty = m1->was_dirty;
- m2->compressor = m1->compressor;
+
+ if (m1->vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR)
+ m2->vm_page_q_state = VM_PAGE_USED_BY_COMPRESSOR;
+
+ /*
+ * page may need to be flushed if
+ * it is marshalled into a UPL
+ * that is going to be used by a device
+ * that doesn't support coherency
+ */
+ m2->written_by_kernel = TRUE;
/*
* make sure we clear the ref/mod state
* inheriting state from the last time
* this page was used...
*/
- pmap_clear_refmod(m2->phys_page, VM_MEM_MODIFIED | VM_MEM_REFERENCED);
+ pmap_clear_refmod(VM_PAGE_GET_PHYS_PAGE(m2), VM_MEM_MODIFIED | VM_MEM_REFERENCED);
if (refmod & VM_MEM_REFERENCED)
m2->reference = TRUE;
* now put the substitute page
* on the object
*/
- vm_page_insert_internal(m2, locked_object, offset, TRUE, TRUE, FALSE);
+ vm_page_insert_internal(m2, locked_object, offset, VM_KERN_MEMORY_NONE, TRUE, TRUE, FALSE, FALSE, NULL);
- if (m2->compressor) {
+ if (m2->vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR) {
m2->pmapped = TRUE;
m2->wpmapped = TRUE;
PMAP_ENTER(kernel_pmap, m2->offset, m2,
VM_PROT_READ | VM_PROT_WRITE, VM_PROT_NONE, 0, TRUE);
-#if MACH_ASSERT
+
compressed_pages++;
-#endif
+
} else {
if (m2->reference)
vm_page_activate(m2);
PAGE_WAKEUP_DONE(m2);
} else {
- assert(!m1->compressor);
+ assert(m1->vm_page_q_state != VM_PAGE_USED_BY_COMPRESSOR);
/*
* completely cleans up the state
*/
vm_page_free_prepare(m1);
}
-#if MACH_ASSERT
+
stolen_pages++;
-#endif
+
}
- m1->pageq.next = (queue_entry_t) m;
- m1->pageq.prev = NULL;
+#if CONFIG_BACKGROUND_QUEUE
+ vm_page_assign_background_state(m1);
+#endif
+ VM_PAGE_ZERO_PAGEQ_ENTRY(m1);
+ m1->snext = m;
m = m1;
}
if (locked_object) {
}
if (abort_run == TRUE) {
- if (m != VM_PAGE_NULL) {
- vm_page_free_list(m, FALSE);
- }
-#if MACH_ASSERT
- dumped_run++;
-#endif
/*
* want the index of the last
* page in this run that was
*/
page_idx = tmp_start_idx + 2;
if (page_idx >= vm_pages_count) {
- if (wrapped)
+ if (wrapped) {
+ if (m != VM_PAGE_NULL) {
+ vm_page_unlock_queues();
+ vm_page_free_list(m, FALSE);
+ vm_page_lock_queues();
+ m = VM_PAGE_NULL;
+ }
+ dumped_run++;
goto done_scanning;
+ }
page_idx = last_idx = 0;
wrapped = TRUE;
}
last_idx = page_idx;
+ if (m != VM_PAGE_NULL) {
+ vm_page_unlock_queues();
+ vm_page_free_list(m, FALSE);
+ vm_page_lock_queues();
+ m = VM_PAGE_NULL;
+ }
+ dumped_run++;
+
lck_mtx_lock(&vm_page_queue_free_lock);
/*
* reset our free page limit since we
for (m1 = m; m1 != VM_PAGE_NULL; m1 = NEXT_PAGE(m1)) {
- if (wire == TRUE)
+ assert(m1->vm_page_q_state == VM_PAGE_NOT_ON_Q);
+ assert(m1->wire_count == 0);
+
+ if (wire == TRUE) {
m1->wire_count++;
- else
+ m1->vm_page_q_state = VM_PAGE_IS_WIRED;
+ } else
m1->gobbled = TRUE;
}
if (wire == FALSE)
#if MACH_ASSERT
vm_page_verify_free_lists();
#endif
+ if (m == NULL && zone_gc_called == FALSE) {
+ printf("%s(num=%d,low=%d): found %d pages at 0x%llx...scanned %d pages... yielded %d times... dumped run %d times... stole %d pages... stole %d compressed pages... wired count is %d\n",
+ __func__, contig_pages, max_pnum, npages, (vm_object_offset_t)start_pnum << PAGE_SHIFT,
+ scanned, yielded, dumped_run, stolen_pages, compressed_pages, vm_page_wire_count);
+
+ if (consider_buffer_cache_collect != NULL) {
+ (void)(*consider_buffer_cache_collect)(1);
+ }
+
+ consider_zone_gc();
+
+ zone_gc_called = TRUE;
+
+ printf("vm_page_find_contiguous: zone_gc called... wired count is %d\n", vm_page_wire_count);
+ goto full_scan_again;
+ }
+
return m;
}
void
vm_page_do_delayed_work(
vm_object_t object,
+ vm_tag_t tag,
struct vm_page_delayed_work *dwp,
int dw_count)
{
if (dwp->dw_mask & DW_vm_pageout_throttle_up)
vm_pageout_throttle_up(m);
-
+#if CONFIG_PHANTOM_CACHE
+ if (dwp->dw_mask & DW_vm_phantom_cache_update)
+ vm_phantom_cache_update(m);
+#endif
if (dwp->dw_mask & DW_vm_page_wire)
- vm_page_wire(m);
+ vm_page_wire(m, tag, FALSE);
else if (dwp->dw_mask & DW_vm_page_unwire) {
boolean_t queueit;
- queueit = (dwp->dw_mask & DW_vm_page_free) ? FALSE : TRUE;
+ queueit = (dwp->dw_mask & (DW_vm_page_free | DW_vm_page_deactivate_internal)) ? FALSE : TRUE;
vm_page_unwire(m, queueit);
}
if (dwp->dw_mask & DW_vm_page_free) {
vm_page_free_prepare_queues(m);
- assert(m->pageq.next == NULL && m->pageq.prev == NULL);
+ assert(m->pageq.next == 0 && m->pageq.prev == 0);
/*
* Add this page to our list of reclaimed pages,
* to be freed later.
*/
- m->pageq.next = (queue_entry_t) local_free_q;
+ m->snext = local_free_q;
local_free_q = m;
} else {
if (dwp->dw_mask & DW_vm_page_deactivate_internal)
vm_page_deactivate_internal(m, FALSE);
else if (dwp->dw_mask & DW_vm_page_activate) {
- if (m->active == FALSE) {
+ if (m->vm_page_q_state != VM_PAGE_ON_ACTIVE_Q) {
vm_page_activate(m);
}
}
* cleaned queue, and so we would have a referenced (maybe even dirty)
* page on that queue, which we don't want
*/
- int refmod_state = pmap_disconnect(m->phys_page);
+ int refmod_state = pmap_disconnect(VM_PAGE_GET_PHYS_PAGE(m));
if ((refmod_state & VM_MEM_REFERENCED)) {
/*
vm_pageout_cleaned_reactivated++;
vm_pageout_cleaned_commit_reactivated++;
- if (m->active == FALSE)
+ if (m->vm_page_q_state != VM_PAGE_ON_ACTIVE_Q)
vm_page_activate(m);
} else {
m->reference = FALSE;
else if (dwp->dw_mask & DW_vm_page_lru)
vm_page_lru(m);
else if (dwp->dw_mask & DW_VM_PAGE_QUEUES_REMOVE) {
- if ( !m->pageout_queue)
- VM_PAGE_QUEUES_REMOVE(m);
+ if (m->vm_page_q_state != VM_PAGE_ON_PAGEOUT_Q)
+ vm_page_queues_remove(m, TRUE);
}
if (dwp->dw_mask & DW_set_reference)
m->reference = TRUE;
m->reference = FALSE;
if (dwp->dw_mask & DW_move_page) {
- if ( !m->pageout_queue) {
- VM_PAGE_QUEUES_REMOVE(m);
+ if (m->vm_page_q_state != VM_PAGE_ON_PAGEOUT_Q) {
+ vm_page_queues_remove(m, FALSE);
- assert(m->object != kernel_object);
+ assert(VM_PAGE_OBJECT(m) != kernel_object);
- VM_PAGE_ENQUEUE_INACTIVE(m, FALSE);
+ vm_page_enqueue_inactive(m, FALSE);
}
}
if (dwp->dw_mask & DW_clear_busy)
return (KERN_RESOURCE_SHORTAGE);
}
- mem->pageq.next = (queue_entry_t) lo_page_list;
+ mem->snext = lo_page_list;
lo_page_list = mem;
}
*list = lo_page_list;
vm_page_t
vm_page_get_next(vm_page_t page)
{
- return ((vm_page_t) page->pageq.next);
+ return (page->snext);
}
vm_object_offset_t
ppnum_t
vm_page_get_phys_page(vm_page_t page)
{
- return (page->phys_page);
+ return (VM_PAGE_GET_PHYS_PAGE(page));
}
static vm_page_t hibernate_gobble_queue;
-extern boolean_t (* volatile consider_buffer_cache_collect)(int);
-
static int hibernate_drain_pageout_queue(struct vm_pageout_queue *);
static int hibernate_flush_dirty_pages(int);
-static int hibernate_flush_queue(queue_head_t *, int);
+static int hibernate_flush_queue(vm_page_queue_head_t *, int);
void hibernate_flush_wait(void);
void hibernate_mark_in_progress(void);
int cd_found_laundry;
int cd_found_dirty;
int cd_found_xpmapped;
+ int cd_skipped_xpmapped;
int cd_local_free;
int cd_total_free;
int cd_vm_page_wire_count;
} hibernate_stats;
+/*
+ * clamp the number of 'xpmapped' pages we'll sweep into the hibernation image
+ * so that we don't overrun the estimated image size, which would
+ * result in a hibernation failure.
+ */
+#define HIBERNATE_XPMAPPED_LIMIT 40000
+
static int
hibernate_drain_pageout_queue(struct vm_pageout_queue *q)
vm_page_lock_queues();
- while ( !queue_empty(&q->pgo_pending) ) {
+ while ( !vm_page_queue_empty(&q->pgo_pending) ) {
q->pgo_draining = TRUE;
wait_result = thread_block(THREAD_CONTINUE_NULL);
- if (wait_result == THREAD_TIMED_OUT && !queue_empty(&q->pgo_pending)) {
+ if (wait_result == THREAD_TIMED_OUT && !vm_page_queue_empty(&q->pgo_pending)) {
hibernate_stats.hibernate_drain_timeout++;
if (q == &vm_pageout_queue_external)
boolean_t hibernate_skip_external = FALSE;
static int
-hibernate_flush_queue(queue_head_t *q, int qcount)
+hibernate_flush_queue(vm_page_queue_head_t *q, int qcount)
{
vm_page_t m;
vm_object_t l_object = NULL;
vm_page_lock_queues();
- while (qcount && !queue_empty(q)) {
+ while (qcount && !vm_page_queue_empty(q)) {
if (current_run++ == 1000) {
if (hibernate_should_abort()) {
current_run = 0;
}
- m = (vm_page_t) queue_first(q);
- m_object = m->object;
+ m = (vm_page_t) vm_page_queue_first(q);
+ m_object = VM_PAGE_OBJECT(m);
/*
* check to see if we currently are working
goto reenter_pg_on_q;
}
- vm_pageout_scan_wants_object = m_object;
vm_page_unlock_queues();
mutex_pause(try_failed_count++);
continue;
} else {
l_object = m_object;
- vm_pageout_scan_wants_object = VM_OBJECT_NULL;
}
}
if ( !m_object->alive || m->encrypted_cleaning || m->cleaning || m->laundry || m->busy || m->absent || m->error) {
}
}
if ( !m->dirty && m->pmapped) {
- refmod_state = pmap_get_refmod(m->phys_page);
+ refmod_state = pmap_get_refmod(VM_PAGE_GET_PHYS_PAGE(m));
if ((refmod_state & VM_MEM_MODIFIED)) {
SET_PAGE_DIRTY(m, FALSE);
vm_object_unlock(l_object);
l_object = NULL;
}
- vm_pageout_scan_wants_object = VM_OBJECT_NULL;
while (retval == 0) {
/*
* we've already factored out pages in the laundry which
* means this page can't be on the pageout queue so it's
- * safe to do the VM_PAGE_QUEUES_REMOVE
+ * safe to do the vm_page_queues_remove
*/
- assert(!m->pageout_queue);
-
- VM_PAGE_QUEUES_REMOVE(m);
+ vm_page_queues_remove(m, TRUE);
- if (COMPRESSED_PAGER_IS_ACTIVE)
- pmap_disconnect(m->phys_page);
+ if (m_object->internal == TRUE)
+ pmap_disconnect_options(VM_PAGE_GET_PHYS_PAGE(m), PMAP_OPTIONS_COMPRESSOR, NULL);
- vm_pageout_cluster(m, FALSE);
+ (void)vm_pageout_cluster(m, FALSE, FALSE);
hibernate_stats.hibernate_found_dirty++;
goto next_pg;
reenter_pg_on_q:
- queue_remove(q, m, vm_page_t, pageq);
- queue_enter(q, m, vm_page_t, pageq);
+ vm_page_queue_remove(q, m, vm_page_t, pageq);
+ vm_page_queue_enter(q, m, vm_page_t, pageq);
hibernate_stats.hibernate_reentered_on_q++;
next_pg:
vm_object_unlock(l_object);
l_object = NULL;
}
- vm_pageout_scan_wants_object = VM_OBJECT_NULL;
vm_page_unlock_queues();
struct vm_speculative_age_q *aq;
uint32_t i;
- bzero(&hibernate_stats, sizeof(struct hibernate_statistics));
-
if (vm_page_local_q) {
for (i = 0; i < vm_page_local_q_count; i++)
vm_page_reactivate_local(i, TRUE, FALSE);
aq = &vm_page_queue_speculative[i];
- if (queue_empty(&aq->age_q))
+ if (vm_page_queue_empty(&aq->age_q))
continue;
qcount = 0;
vm_page_lockspin_queues();
- queue_iterate(&aq->age_q,
+ vm_page_queue_iterate(&aq->age_q,
m,
vm_page_t,
pageq)
}
if (hibernate_flush_queue(&vm_page_queue_inactive, vm_page_inactive_count - vm_page_anonymous_count - vm_page_cleaned_count))
return (1);
+ /* XXX FBDP TODO: flush secluded queue */
if (hibernate_flush_queue(&vm_page_queue_anonymous, vm_page_anonymous_count))
return (1);
if (hibernate_flush_queue(&vm_page_queue_cleaned, vm_page_cleaned_count))
if (hibernate_drain_pageout_queue(&vm_pageout_queue_internal))
return (1);
- if (COMPRESSED_PAGER_IS_ACTIVE && pass == 1)
+ if (pass == 1)
vm_compressor_record_warmup_start();
if (hibernate_flush_queue(&vm_page_queue_active, vm_page_active_count)) {
- if (COMPRESSED_PAGER_IS_ACTIVE && pass == 1)
+ if (pass == 1)
vm_compressor_record_warmup_end();
return (1);
}
if (hibernate_drain_pageout_queue(&vm_pageout_queue_internal)) {
- if (COMPRESSED_PAGER_IS_ACTIVE && pass == 1)
+ if (pass == 1)
vm_compressor_record_warmup_end();
return (1);
}
- if (COMPRESSED_PAGER_IS_ACTIVE && pass == 1)
+ if (pass == 1)
vm_compressor_record_warmup_end();
if (hibernate_skip_external == FALSE && hibernate_drain_pageout_queue(&vm_pageout_queue_external))
}
+void
+hibernate_reset_stats()
+{
+ bzero(&hibernate_stats, sizeof(struct hibernate_statistics));
+}
+
+
int
hibernate_flush_memory()
{
int retval;
+ assert(VM_CONFIG_COMPRESSOR_IS_PRESENT);
+
KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 3) | DBG_FUNC_START, vm_page_free_count, 0, 0, 0, 0);
hibernate_cleaning_in_progress = TRUE;
if ((retval = hibernate_flush_dirty_pages(1)) == 0) {
- if (COMPRESSED_PAGER_IS_ACTIVE) {
-
- if ((retval = hibernate_flush_dirty_pages(2)) == 0) {
+ KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 10) | DBG_FUNC_START, VM_PAGE_COMPRESSOR_COUNT, 0, 0, 0, 0);
- KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 10) | DBG_FUNC_START, VM_PAGE_COMPRESSOR_COUNT, 0, 0, 0, 0);
+ vm_compressor_flush();
- vm_compressor_flush();
+ KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 10) | DBG_FUNC_END, VM_PAGE_COMPRESSOR_COUNT, 0, 0, 0, 0);
- KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 10) | DBG_FUNC_END, VM_PAGE_COMPRESSOR_COUNT, 0, 0, 0, 0);
- }
- }
- if (retval == 0 && consider_buffer_cache_collect != NULL) {
+ if (consider_buffer_cache_collect != NULL) {
unsigned int orig_wire_count;
KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 7) | DBG_FUNC_START, 0, 0, 0, 0, 0);
orig_wire_count = vm_page_wire_count;
(void)(*consider_buffer_cache_collect)(1);
- consider_zone_gc(TRUE);
+ consider_zone_gc();
HIBLOG("hibernate_flush_memory: buffer_cache_gc freed up %d wired pages\n", orig_wire_count - vm_page_wire_count);
KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 3) | DBG_FUNC_END, vm_page_free_count, hibernate_stats.hibernate_found_dirty, retval, 0, 0);
- if (retval && COMPRESSED_PAGER_IS_ACTIVE)
+ if (retval)
HIBLOG("hibernate_flush_memory() failed to finish - vm_page_compressor_count(%d)\n", VM_PAGE_COMPRESSOR_COUNT);
}
}
-void
-hibernate_gobble_pages(uint32_t gobble_count, uint32_t free_page_time)
-{
- uint32_t i;
- vm_page_t m;
- uint64_t start, end, timeout, nsec;
- clock_interval_to_deadline(free_page_time, 1000 * 1000 /*ms*/, &timeout);
- clock_get_uptime(&start);
-
- for (i = 0; i < gobble_count; i++)
- {
- while (VM_PAGE_NULL == (m = vm_page_grab()))
- {
- clock_get_uptime(&end);
- if (end >= timeout)
- break;
- VM_PAGE_WAIT();
- }
- if (!m)
- break;
- m->busy = FALSE;
- vm_page_gobble(m);
-
- m->pageq.next = (queue_entry_t) hibernate_gobble_queue;
- hibernate_gobble_queue = m;
- }
-
- clock_get_uptime(&end);
- absolutetime_to_nanoseconds(end - start, &nsec);
- HIBLOG("Gobbled %d pages, time: %qd ms\n", i, nsec / 1000000ULL);
-}
-
void
hibernate_free_gobble_pages(void)
{
m = (vm_page_t) hibernate_gobble_queue;
while(m)
{
- next = (vm_page_t) m->pageq.next;
+ next = m->snext;
vm_page_free(m);
count++;
m = next;
if (m->private)
panic("hibernate_consider_discard: private");
- if (!vm_object_lock_try(m->object)) {
+ object = VM_PAGE_OBJECT(m);
+
+ if (!vm_object_lock_try(object)) {
+ object = NULL;
if (!preflight) hibernate_stats.cd_lock_failed++;
break;
}
- object = m->object;
-
if (VM_PAGE_WIRED(m)) {
if (!preflight) hibernate_stats.cd_found_wired++;
break;
}
if (!m->dirty)
{
- refmod_state = pmap_get_refmod(m->phys_page);
+ refmod_state = pmap_get_refmod(VM_PAGE_GET_PHYS_PAGE(m));
if (refmod_state & VM_MEM_REFERENCED)
m->reference = TRUE;
if (discard == FALSE) {
if (!preflight)
hibernate_stats.cd_found_dirty++;
- } else if (m->xpmapped && m->reference) {
- if (!preflight)
- hibernate_stats.cd_found_xpmapped++;
- discard = FALSE;
+ } else if (m->xpmapped && m->reference && !object->internal) {
+ if (hibernate_stats.cd_found_xpmapped < HIBERNATE_XPMAPPED_LIMIT) {
+ if (!preflight)
+ hibernate_stats.cd_found_xpmapped++;
+ discard = FALSE;
+ } else {
+ if (!preflight)
+ hibernate_stats.cd_skipped_xpmapped++;
+ }
}
}
while (FALSE);
static void
hibernate_discard_page(vm_page_t m)
{
+ vm_object_t m_object;
+
if (m->absent || m->unusual || m->error)
/*
* If it's unusual in anyway, ignore
*/
return;
-#if DEBUG
- vm_object_t object = m->object;
- if (!vm_object_lock_try(m->object))
+ m_object = VM_PAGE_OBJECT(m);
+
+#if MACH_ASSERT || DEBUG
+ if (!vm_object_lock_try(m_object))
panic("hibernate_discard_page(%p) !vm_object_lock_try", m);
#else
/* No need to lock page queue for token delete, hibernate_vm_unlock()
makes sure these locks are uncontended before sleep */
-#endif /* !DEBUG */
+#endif /* MACH_ASSERT || DEBUG */
if (m->pmapped == TRUE)
{
- __unused int refmod_state = pmap_disconnect(m->phys_page);
+ __unused int refmod_state = pmap_disconnect(VM_PAGE_GET_PHYS_PAGE(m));
}
if (m->laundry)
if (m->fictitious)
panic("hibernate_discard_page(%p) fictitious", m);
- if (VM_PURGABLE_VOLATILE == m->object->purgable)
+ if (VM_PURGABLE_VOLATILE == m_object->purgable)
{
/* object should be on a queue */
- assert((m->object->objq.next != NULL) && (m->object->objq.prev != NULL));
- purgeable_q_t old_queue = vm_purgeable_object_remove(m->object);
+ assert((m_object->objq.next != NULL) && (m_object->objq.prev != NULL));
+ purgeable_q_t old_queue = vm_purgeable_object_remove(m_object);
assert(old_queue);
- if (m->object->purgeable_when_ripe) {
+ if (m_object->purgeable_when_ripe) {
vm_purgeable_token_delete_first(old_queue);
}
- m->object->purgable = VM_PURGABLE_EMPTY;
+ vm_object_lock_assert_exclusive(m_object);
+ m_object->purgable = VM_PURGABLE_EMPTY;
+
+ /*
+ * Purgeable ledgers: pages of VOLATILE and EMPTY objects are
+ * accounted in the "volatile" ledger, so no change here.
+ * We have to update vm_page_purgeable_count, though, since we're
+ * effectively purging this object.
+ */
+ unsigned int delta;
+ assert(m_object->resident_page_count >= m_object->wired_page_count);
+ delta = (m_object->resident_page_count - m_object->wired_page_count);
+ assert(vm_page_purgeable_count >= delta);
+ assert(delta > 0);
+ OSAddAtomic(-delta, (SInt32 *)&vm_page_purgeable_count);
}
vm_page_free(m);
-#if DEBUG
- vm_object_unlock(object);
-#endif /* DEBUG */
+#if MACH_ASSERT || DEBUG
+ vm_object_unlock(m_object);
+#endif /* MACH_ASSERT || DEBUG */
}
/*
boolean_t discard_all;
boolean_t discard;
- HIBLOG("hibernate_page_list_setall(preflight %d) start %p, %p\n", preflight, page_list, page_list_wired);
+ HIBLOG("hibernate_page_list_setall(preflight %d) start\n", preflight);
if (preflight) {
page_list = NULL;
discard_all = will_discard;
}
-#if DEBUG
+#if MACH_ASSERT || DEBUG
if (!preflight)
{
vm_page_lock_queues();
}
}
}
-#endif /* DEBUG */
+#endif /* MACH_ASSERT || DEBUG */
KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 8) | DBG_FUNC_START, count_wire, 0, 0, 0, 0);
pages--;
count_wire--;
if (!preflight) {
- hibernate_page_bitset(page_list, TRUE, m->phys_page);
- hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
+ hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
}
- m = (vm_page_t) m->pageq.next;
+ m = m->snext;
}
if (!preflight) for( i = 0; i < real_ncpus; i++ )
{
if (cpu_data_ptr[i] && cpu_data_ptr[i]->cpu_processor)
{
- for (m = PROCESSOR_DATA(cpu_data_ptr[i]->cpu_processor, free_pages); m; m = (vm_page_t)m->pageq.next)
+ for (m = PROCESSOR_DATA(cpu_data_ptr[i]->cpu_processor, free_pages); m; m = m->snext)
{
+ assert(m->vm_page_q_state == VM_PAGE_ON_FREE_LOCAL_Q);
+
pages--;
count_wire--;
- hibernate_page_bitset(page_list, TRUE, m->phys_page);
- hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
+ hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
hibernate_stats.cd_local_free++;
hibernate_stats.cd_total_free++;
for( i = 0; i < vm_colors; i++ )
{
- queue_iterate(&vm_page_queue_free[i],
- m,
- vm_page_t,
- pageq)
+ vm_page_queue_iterate(&vm_page_queue_free[i].qhead,
+ m,
+ vm_page_t,
+ pageq)
{
+ assert(m->vm_page_q_state == VM_PAGE_ON_FREE_Q);
+
pages--;
count_wire--;
if (!preflight) {
- hibernate_page_bitset(page_list, TRUE, m->phys_page);
- hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
+ hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
hibernate_stats.cd_total_free++;
}
}
}
- queue_iterate(&vm_lopage_queue_free,
- m,
- vm_page_t,
- pageq)
+ vm_page_queue_iterate(&vm_lopage_queue_free,
+ m,
+ vm_page_t,
+ pageq)
{
+ assert(m->vm_page_q_state == VM_PAGE_ON_FREE_LOPAGE_Q);
+
pages--;
count_wire--;
if (!preflight) {
- hibernate_page_bitset(page_list, TRUE, m->phys_page);
- hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
+ hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
hibernate_stats.cd_total_free++;
}
}
- m = (vm_page_t) queue_first(&vm_page_queue_throttled);
- while (m && !queue_end(&vm_page_queue_throttled, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_throttled);
+ while (m && !vm_page_queue_end(&vm_page_queue_throttled, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
+ assert(m->vm_page_q_state == VM_PAGE_ON_THROTTLED_Q);
+
+ next = (vm_page_t)VM_PAGE_UNPACK_PTR(m->pageq.next);
discard = FALSE;
if ((kIOHibernateModeDiscardCleanInactive & gIOHibernateMode)
&& hibernate_consider_discard(m, preflight))
{
- if (!preflight) hibernate_page_bitset(page_list, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
count_discard_inactive++;
discard = discard_all;
}
else
count_throttled++;
count_wire--;
- if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (discard) hibernate_discard_page(m);
m = next;
}
- m = (vm_page_t) queue_first(&vm_page_queue_anonymous);
- while (m && !queue_end(&vm_page_queue_anonymous, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_anonymous);
+ while (m && !vm_page_queue_end(&vm_page_queue_anonymous, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
+ assert(m->vm_page_q_state == VM_PAGE_ON_INACTIVE_INTERNAL_Q);
+
+ next = (vm_page_t)VM_PAGE_UNPACK_PTR(m->pageq.next);
discard = FALSE;
if ((kIOHibernateModeDiscardCleanInactive & gIOHibernateMode)
&& hibernate_consider_discard(m, preflight))
{
- if (!preflight) hibernate_page_bitset(page_list, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (m->dirty)
count_discard_purgeable++;
else
else
count_anonymous++;
count_wire--;
- if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (discard) hibernate_discard_page(m);
m = next;
}
- m = (vm_page_t) queue_first(&vm_page_queue_inactive);
- while (m && !queue_end(&vm_page_queue_inactive, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_cleaned);
+ while (m && !vm_page_queue_end(&vm_page_queue_cleaned, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
+ assert(m->vm_page_q_state == VM_PAGE_ON_INACTIVE_CLEANED_Q);
+
+ next = (vm_page_t)VM_PAGE_UNPACK_PTR(m->pageq.next);
discard = FALSE;
if ((kIOHibernateModeDiscardCleanInactive & gIOHibernateMode)
&& hibernate_consider_discard(m, preflight))
{
- if (!preflight) hibernate_page_bitset(page_list, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (m->dirty)
count_discard_purgeable++;
else
- count_discard_inactive++;
+ count_discard_cleaned++;
discard = discard_all;
}
else
- count_inactive++;
+ count_cleaned++;
count_wire--;
- if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (discard) hibernate_discard_page(m);
m = next;
}
- m = (vm_page_t) queue_first(&vm_page_queue_cleaned);
- while (m && !queue_end(&vm_page_queue_cleaned, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_active);
+ while (m && !vm_page_queue_end(&vm_page_queue_active, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
+ assert(m->vm_page_q_state == VM_PAGE_ON_ACTIVE_Q);
+
+ next = (vm_page_t)VM_PAGE_UNPACK_PTR(m->pageq.next);
discard = FALSE;
- if ((kIOHibernateModeDiscardCleanInactive & gIOHibernateMode)
+ if ((kIOHibernateModeDiscardCleanActive & gIOHibernateMode)
&& hibernate_consider_discard(m, preflight))
{
- if (!preflight) hibernate_page_bitset(page_list, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (m->dirty)
count_discard_purgeable++;
else
- count_discard_cleaned++;
+ count_discard_active++;
discard = discard_all;
}
else
- count_cleaned++;
+ count_active++;
count_wire--;
- if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (discard) hibernate_discard_page(m);
m = next;
}
- for( i = 0; i <= VM_PAGE_MAX_SPECULATIVE_AGE_Q; i++ )
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_inactive);
+ while (m && !vm_page_queue_end(&vm_page_queue_inactive, (vm_page_queue_entry_t)m))
{
- m = (vm_page_t) queue_first(&vm_page_queue_speculative[i].age_q);
- while (m && !queue_end(&vm_page_queue_speculative[i].age_q, (queue_entry_t)m))
- {
- next = (vm_page_t) m->pageq.next;
- discard = FALSE;
- if ((kIOHibernateModeDiscardCleanInactive & gIOHibernateMode)
- && hibernate_consider_discard(m, preflight))
- {
- if (!preflight) hibernate_page_bitset(page_list, TRUE, m->phys_page);
- count_discard_speculative++;
- discard = discard_all;
- }
- else
- count_speculative++;
- count_wire--;
- if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
- if (discard) hibernate_discard_page(m);
- m = next;
- }
- }
+ assert(m->vm_page_q_state == VM_PAGE_ON_INACTIVE_EXTERNAL_Q);
- m = (vm_page_t) queue_first(&vm_page_queue_active);
- while (m && !queue_end(&vm_page_queue_active, (queue_entry_t)m))
- {
- next = (vm_page_t) m->pageq.next;
+ next = (vm_page_t)VM_PAGE_UNPACK_PTR(m->pageq.next);
discard = FALSE;
- if ((kIOHibernateModeDiscardCleanActive & gIOHibernateMode)
+ if ((kIOHibernateModeDiscardCleanInactive & gIOHibernateMode)
&& hibernate_consider_discard(m, preflight))
{
- if (!preflight) hibernate_page_bitset(page_list, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (m->dirty)
count_discard_purgeable++;
else
- count_discard_active++;
+ count_discard_inactive++;
discard = discard_all;
}
else
- count_active++;
+ count_inactive++;
count_wire--;
- if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
if (discard) hibernate_discard_page(m);
m = next;
}
+ /* XXX FBDP TODO: secluded queue */
- queue_iterate(&compressor_object->memq, m, vm_page_t, listq)
+ for( i = 0; i <= VM_PAGE_MAX_SPECULATIVE_AGE_Q; i++ )
{
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_speculative[i].age_q);
+ while (m && !vm_page_queue_end(&vm_page_queue_speculative[i].age_q, (vm_page_queue_entry_t)m))
+ {
+ assert(m->vm_page_q_state == VM_PAGE_ON_SPECULATIVE_Q);
+
+ next = (vm_page_t)VM_PAGE_UNPACK_PTR(m->pageq.next);
+ discard = FALSE;
+ if ((kIOHibernateModeDiscardCleanInactive & gIOHibernateMode)
+ && hibernate_consider_discard(m, preflight))
+ {
+ if (!preflight) hibernate_page_bitset(page_list, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
+ count_discard_speculative++;
+ discard = discard_all;
+ }
+ else
+ count_speculative++;
+ count_wire--;
+ if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
+ if (discard) hibernate_discard_page(m);
+ m = next;
+ }
+ }
+
+ vm_page_queue_iterate(&compressor_object->memq, m, vm_page_t, listq)
+ {
+ assert(m->vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR);
+
count_compressor++;
count_wire--;
- if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, m->phys_page);
+ if (!preflight) hibernate_page_bitset(page_list_wired, TRUE, VM_PAGE_GET_PHYS_PAGE(m));
}
if (preflight == FALSE && discard_all == TRUE) {
discard_all ? "did" : "could",
count_discard_active, count_discard_inactive, count_discard_purgeable, count_discard_speculative, count_discard_cleaned);
+ if (hibernate_stats.cd_skipped_xpmapped)
+ HIBLOG("WARNING: hibernate_page_list_setall skipped %d xpmapped pages\n", hibernate_stats.cd_skipped_xpmapped);
+
*pagesOut = pages - count_discard_active - count_discard_inactive - count_discard_purgeable - count_discard_speculative - count_discard_cleaned;
if (preflight && will_discard) *pagesOut -= count_compressor + count_throttled + count_anonymous + count_inactive + count_cleaned + count_speculative + count_active;
-#if DEBUG
+#if MACH_ASSERT || DEBUG
if (!preflight)
{
if (vm_page_local_q) {
}
vm_page_unlock_queues();
}
-#endif /* DEBUG */
+#endif /* MACH_ASSERT || DEBUG */
if (preflight) {
lck_mtx_unlock(&vm_page_queue_free_lock);
uint32_t count_discard_speculative = 0;
-#if DEBUG
+#if MACH_ASSERT || DEBUG
vm_page_lock_queues();
if (vm_page_local_q) {
for (i = 0; i < vm_page_local_q_count; i++) {
VPL_LOCK(&lq->vpl_lock);
}
}
-#endif /* DEBUG */
+#endif /* MACH_ASSERT || DEBUG */
clock_get_uptime(&start);
- m = (vm_page_t) queue_first(&vm_page_queue_anonymous);
- while (m && !queue_end(&vm_page_queue_anonymous, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_anonymous);
+ while (m && !vm_page_queue_end(&vm_page_queue_anonymous, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
- if (hibernate_page_bittst(page_list, m->phys_page))
+ assert(m->vm_page_q_state == VM_PAGE_ON_INACTIVE_INTERNAL_Q);
+
+ next = (vm_page_t) VM_PAGE_UNPACK_PTR(m->pageq.next);
+ if (hibernate_page_bittst(page_list, VM_PAGE_GET_PHYS_PAGE(m)))
{
if (m->dirty)
count_discard_purgeable++;
for( i = 0; i <= VM_PAGE_MAX_SPECULATIVE_AGE_Q; i++ )
{
- m = (vm_page_t) queue_first(&vm_page_queue_speculative[i].age_q);
- while (m && !queue_end(&vm_page_queue_speculative[i].age_q, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_speculative[i].age_q);
+ while (m && !vm_page_queue_end(&vm_page_queue_speculative[i].age_q, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
- if (hibernate_page_bittst(page_list, m->phys_page))
+ assert(m->vm_page_q_state == VM_PAGE_ON_SPECULATIVE_Q);
+
+ next = (vm_page_t) VM_PAGE_UNPACK_PTR(m->pageq.next);
+ if (hibernate_page_bittst(page_list, VM_PAGE_GET_PHYS_PAGE(m)))
{
count_discard_speculative++;
hibernate_discard_page(m);
}
}
- m = (vm_page_t) queue_first(&vm_page_queue_inactive);
- while (m && !queue_end(&vm_page_queue_inactive, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_inactive);
+ while (m && !vm_page_queue_end(&vm_page_queue_inactive, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
- if (hibernate_page_bittst(page_list, m->phys_page))
+ assert(m->vm_page_q_state == VM_PAGE_ON_INACTIVE_EXTERNAL_Q);
+
+ next = (vm_page_t) VM_PAGE_UNPACK_PTR(m->pageq.next);
+ if (hibernate_page_bittst(page_list, VM_PAGE_GET_PHYS_PAGE(m)))
{
if (m->dirty)
count_discard_purgeable++;
}
m = next;
}
+ /* XXX FBDP TODO: secluded queue */
- m = (vm_page_t) queue_first(&vm_page_queue_active);
- while (m && !queue_end(&vm_page_queue_active, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_active);
+ while (m && !vm_page_queue_end(&vm_page_queue_active, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
- if (hibernate_page_bittst(page_list, m->phys_page))
+ assert(m->vm_page_q_state == VM_PAGE_ON_ACTIVE_Q);
+
+ next = (vm_page_t) VM_PAGE_UNPACK_PTR(m->pageq.next);
+ if (hibernate_page_bittst(page_list, VM_PAGE_GET_PHYS_PAGE(m)))
{
if (m->dirty)
count_discard_purgeable++;
m = next;
}
- m = (vm_page_t) queue_first(&vm_page_queue_cleaned);
- while (m && !queue_end(&vm_page_queue_cleaned, (queue_entry_t)m))
+ m = (vm_page_t) vm_page_queue_first(&vm_page_queue_cleaned);
+ while (m && !vm_page_queue_end(&vm_page_queue_cleaned, (vm_page_queue_entry_t)m))
{
- next = (vm_page_t) m->pageq.next;
- if (hibernate_page_bittst(page_list, m->phys_page))
+ assert(m->vm_page_q_state == VM_PAGE_ON_INACTIVE_CLEANED_Q);
+
+ next = (vm_page_t) VM_PAGE_UNPACK_PTR(m->pageq.next);
+ if (hibernate_page_bittst(page_list, VM_PAGE_GET_PHYS_PAGE(m)))
{
if (m->dirty)
count_discard_purgeable++;
m = next;
}
-#if DEBUG
+#if MACH_ASSERT || DEBUG
if (vm_page_local_q) {
for (i = 0; i < vm_page_local_q_count; i++) {
struct vpl *lq;
}
}
vm_page_unlock_queues();
-#endif /* DEBUG */
+#endif /* MACH_ASSERT || DEBUG */
clock_get_uptime(&end);
absolutetime_to_nanoseconds(end - start, &nsec);
if (ppnm)
ppnm->ppnm_eindx = i;
- if (ppnm == NULL || vm_pages[i].phys_page != next_ppnum_in_run) {
+ if (ppnm == NULL || VM_PAGE_GET_PHYS_PAGE(&vm_pages[i]) != next_ppnum_in_run) {
ppnm = kalloc(sizeof(struct ppnum_mapping));
ppnm_head = ppnm;
ppnm->ppnm_sindx = i;
- ppnm->ppnm_base_paddr = vm_pages[i].phys_page;
+ ppnm->ppnm_base_paddr = VM_PAGE_GET_PHYS_PAGE(&vm_pages[i]);
}
- next_ppnum_in_run = vm_pages[i].phys_page + 1;
+ next_ppnum_in_run = VM_PAGE_GET_PHYS_PAGE(&vm_pages[i]) + 1;
}
ppnm->ppnm_eindx++;
{
vm_page_bucket_t *bucket;
int hash_id;
+ vm_object_t m_object;
- assert(mem->tabled);
- assert(mem->object);
+ m_object = VM_PAGE_OBJECT(mem);
+
+ assert(mem->hashed);
+ assert(m_object);
assert(mem->offset != (vm_object_offset_t) -1);
/*
* Insert it into the object_object/offset hash table
*/
- hash_id = vm_page_hash(mem->object, mem->offset);
+ hash_id = vm_page_hash(m_object, mem->offset);
bucket = &vm_page_buckets[hash_id];
- mem->next = bucket->pages;
- bucket->pages = mem;
+ mem->next_m = bucket->page_list;
+ bucket->page_list = VM_PAGE_PACK_PTR(mem);
}
vm_page_init(mem, hibernate_lookup_paddr(sindx), FALSE);
mem->lopage = FALSE;
- mem->free = TRUE;
+ mem->vm_page_q_state = VM_PAGE_ON_FREE_Q;
- color = mem->phys_page & vm_color_mask;
- queue_enter_first(&vm_page_queue_free[color],
- mem,
- vm_page_t,
- pageq);
+ color = VM_PAGE_GET_PHYS_PAGE(mem) & vm_color_mask;
+ vm_page_queue_enter_first(&vm_page_queue_free[color].qhead,
+ mem,
+ vm_page_t,
+ pageq);
vm_page_free_count++;
sindx++;
* hibernate_teardown_vm_structs leaves the location where
* this vm_page_t must be located in "next".
*/
- tmem = mem->next;
- mem->next = NULL;
+ tmem = (vm_page_t)(VM_PAGE_UNPACK_PTR(mem->next_m));
+ mem->next_m = VM_PAGE_PACK_PTR(NULL);
sindx = (int)(tmem - &vm_pages[0]);
*tmem = *mem;
mem = tmem;
}
- if (mem->tabled)
+ if (mem->hashed)
hibernate_hash_insert_page(mem);
/*
* the 'hole' between this vm_page_t and the previous
assert(vm_page_free_count == hibernate_teardown_vm_page_free_count);
/*
- * process the list of vm_page_t's that were tabled in the hash,
+ * process the list of vm_page_t's that were entered in the hash,
* but were not located in the vm_pages arrary... these are
* vm_page_t's that were created on the fly (i.e. fictitious)
*/
for (mem = hibernate_rebuild_hash_list; mem; mem = mem_next) {
- mem_next = mem->next;
+ mem_next = (vm_page_t)(VM_PAGE_UNPACK_PTR(mem->next_m));
- mem->next = NULL;
+ mem->next_m = 0;
hibernate_hash_insert_page(mem);
}
hibernate_rebuild_hash_list = NULL;
bucket = &vm_page_buckets[i];
- for (mem = bucket->pages; mem != VM_PAGE_NULL; mem = mem_next) {
-
- assert(mem->tabled);
+ for (mem = (vm_page_t)(VM_PAGE_UNPACK_PTR(bucket->page_list)); mem != VM_PAGE_NULL; mem = mem_next) {
+ assert(mem->hashed);
- mem_next = mem->next;
+ mem_next = (vm_page_t)(VM_PAGE_UNPACK_PTR(mem->next_m));
if (mem < &vm_pages[0] || mem >= &vm_pages[vm_pages_count]) {
- mem->next = hibernate_rebuild_hash_list;
+ mem->next_m = VM_PAGE_PACK_PTR(hibernate_rebuild_hash_list);
hibernate_rebuild_hash_list = mem;
}
}
mem = &vm_pages[i];
- if (mem->free) {
+ if (mem->vm_page_q_state == VM_PAGE_ON_FREE_Q) {
unsigned int color;
assert(mem->busy);
assert(!mem->lopage);
- color = mem->phys_page & vm_color_mask;
+ color = VM_PAGE_GET_PHYS_PAGE(mem) & vm_color_mask;
- queue_remove(&vm_page_queue_free[color],
- mem,
- vm_page_t,
- pageq);
- mem->pageq.next = NULL;
- mem->pageq.prev = NULL;
+ vm_page_queue_remove(&vm_page_queue_free[color].qhead,
+ mem,
+ vm_page_t,
+ pageq);
+
+ VM_PAGE_ZERO_PAGEQ_ENTRY(mem);
vm_page_free_count--;
hibernate_teardown_found_free_pages++;
- if ( !vm_pages[compact_target_indx].free)
+ if (vm_pages[compact_target_indx].vm_page_q_state != VM_PAGE_ON_FREE_Q)
compact_target_indx = i;
} else {
/*
* as an indicator to the rebuild function that
* we don't have to move it
*/
- mem->next = mem;
+ mem->next_m = VM_PAGE_PACK_PTR(mem);
- if (vm_pages[compact_target_indx].free) {
+ if (vm_pages[compact_target_indx].vm_page_q_state == VM_PAGE_ON_FREE_Q) {
/*
* we've got a hole to fill, so
* move this vm_page_t to it's new home
*/
vm_pages[compact_target_indx] = *mem;
- mem->free = TRUE;
+ mem->vm_page_q_state = VM_PAGE_ON_FREE_Q;
hibernate_teardown_last_valid_compact_indx = compact_target_indx;
compact_target_indx++;
bucket_lock = &vm_page_bucket_locks[i / BUCKETS_PER_LOCK];
lck_spin_lock(bucket_lock);
- for (m = bucket->pages; m != VM_PAGE_NULL; m = m->next)
+ for (m = (vm_page_t)(VM_PAGE_UNPACK_PTR(bucket->page_list));
+ m != VM_PAGE_NULL;
+ m = (vm_page_t)(VM_PAGE_UNPACK_PTR(m->next_m)))
bucket_count++;
lck_spin_unlock(bucket_lock);
return vm_page_bucket_count;
}
#endif /* MACH_VM_DEBUG */
+
+#if VM_PAGE_BUCKETS_CHECK
+void
+vm_page_buckets_check(void)
+{
+ unsigned int i;
+ vm_page_t p;
+ unsigned int p_hash;
+ vm_page_bucket_t *bucket;
+ lck_spin_t *bucket_lock;
+
+ if (!vm_page_buckets_check_ready) {
+ return;
+ }
+
+#if HIBERNATION
+ if (hibernate_rebuild_needed ||
+ hibernate_rebuild_hash_list) {
+ panic("BUCKET_CHECK: hibernation in progress: "
+ "rebuild_needed=%d rebuild_hash_list=%p\n",
+ hibernate_rebuild_needed,
+ hibernate_rebuild_hash_list);
+ }
+#endif /* HIBERNATION */
+
+#if VM_PAGE_FAKE_BUCKETS
+ char *cp;
+ for (cp = (char *) vm_page_fake_buckets_start;
+ cp < (char *) vm_page_fake_buckets_end;
+ cp++) {
+ if (*cp != 0x5a) {
+ panic("BUCKET_CHECK: corruption at %p in fake buckets "
+ "[0x%llx:0x%llx]\n",
+ cp,
+ (uint64_t) vm_page_fake_buckets_start,
+ (uint64_t) vm_page_fake_buckets_end);
+ }
+ }
+#endif /* VM_PAGE_FAKE_BUCKETS */
+
+ for (i = 0; i < vm_page_bucket_count; i++) {
+ vm_object_t p_object;
+
+ bucket = &vm_page_buckets[i];
+ if (!bucket->page_list) {
+ continue;
+ }
+
+ bucket_lock = &vm_page_bucket_locks[i / BUCKETS_PER_LOCK];
+ lck_spin_lock(bucket_lock);
+ p = (vm_page_t)(VM_PAGE_UNPACK_PTR(bucket->page_list));
+
+ while (p != VM_PAGE_NULL) {
+ p_object = VM_PAGE_OBJECT(p);
+
+ if (!p->hashed) {
+ panic("BUCKET_CHECK: page %p (%p,0x%llx) "
+ "hash %d in bucket %d at %p "
+ "is not hashed\n",
+ p, p_object, p->offset,
+ p_hash, i, bucket);
+ }
+ p_hash = vm_page_hash(p_object, p->offset);
+ if (p_hash != i) {
+ panic("BUCKET_CHECK: corruption in bucket %d "
+ "at %p: page %p object %p offset 0x%llx "
+ "hash %d\n",
+ i, bucket, p, p_object, p->offset,
+ p_hash);
+ }
+ p = (vm_page_t)(VM_PAGE_UNPACK_PTR(p->next_m));
+ }
+ lck_spin_unlock(bucket_lock);
+ }
+
+// printf("BUCKET_CHECK: checked buckets\n");
+}
+#endif /* VM_PAGE_BUCKETS_CHECK */
+
+/*
+ * 'vm_fault_enter' will place newly created pages (zero-fill and COW) onto the
+ * local queues if they exist... its the only spot in the system where we add pages
+ * to those queues... once on those queues, those pages can only move to one of the
+ * global page queues or the free queues... they NEVER move from local q to local q.
+ * the 'local' state is stable when vm_page_queues_remove is called since we're behind
+ * the global vm_page_queue_lock at this point... we still need to take the local lock
+ * in case this operation is being run on a different CPU then the local queue's identity,
+ * but we don't have to worry about the page moving to a global queue or becoming wired
+ * while we're grabbing the local lock since those operations would require the global
+ * vm_page_queue_lock to be held, and we already own it.
+ *
+ * this is why its safe to utilze the wire_count field in the vm_page_t as the local_id...
+ * 'wired' and local are ALWAYS mutually exclusive conditions.
+ */
+
+#if CONFIG_BACKGROUND_QUEUE
+void
+vm_page_queues_remove(vm_page_t mem, boolean_t remove_from_backgroundq)
+#else
+void
+vm_page_queues_remove(vm_page_t mem, boolean_t __unused remove_from_backgroundq)
+#endif
+{
+ boolean_t was_pageable = TRUE;
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(mem);
+
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+
+ if (mem->vm_page_q_state == VM_PAGE_NOT_ON_Q)
+ {
+ assert(mem->pageq.next == 0 && mem->pageq.prev == 0);
+#if CONFIG_BACKGROUND_QUEUE
+ if (remove_from_backgroundq == TRUE) {
+ vm_page_remove_from_backgroundq(mem);
+ }
+ if (mem->vm_page_on_backgroundq) {
+ assert(mem->vm_page_backgroundq.next != 0);
+ assert(mem->vm_page_backgroundq.prev != 0);
+ } else {
+ assert(mem->vm_page_backgroundq.next == 0);
+ assert(mem->vm_page_backgroundq.prev == 0);
+ }
+#endif /* CONFIG_BACKGROUND_QUEUE */
+ return;
+ }
+
+ if (mem->vm_page_q_state == VM_PAGE_USED_BY_COMPRESSOR)
+ {
+ assert(mem->pageq.next == 0 && mem->pageq.prev == 0);
+#if CONFIG_BACKGROUND_QUEUE
+ assert(mem->vm_page_backgroundq.next == 0 &&
+ mem->vm_page_backgroundq.prev == 0 &&
+ mem->vm_page_on_backgroundq == FALSE);
+#endif
+ return;
+ }
+ if (mem->vm_page_q_state == VM_PAGE_IS_WIRED) {
+ /*
+ * might put these guys on a list for debugging purposes
+ * if we do, we'll need to remove this assert
+ */
+ assert(mem->pageq.next == 0 && mem->pageq.prev == 0);
+#if CONFIG_BACKGROUND_QUEUE
+ assert(mem->vm_page_backgroundq.next == 0 &&
+ mem->vm_page_backgroundq.prev == 0 &&
+ mem->vm_page_on_backgroundq == FALSE);
+#endif
+ return;
+ }
+
+ assert(m_object != compressor_object);
+ assert(m_object != kernel_object);
+ assert(m_object != vm_submap_object);
+ assert(!mem->fictitious);
+
+ switch(mem->vm_page_q_state) {
+
+ case VM_PAGE_ON_ACTIVE_LOCAL_Q:
+ {
+ struct vpl *lq;
+
+ lq = &vm_page_local_q[mem->local_id].vpl_un.vpl;
+ VPL_LOCK(&lq->vpl_lock);
+ vm_page_queue_remove(&lq->vpl_queue,
+ mem, vm_page_t, pageq);
+ mem->local_id = 0;
+ lq->vpl_count--;
+ if (m_object->internal) {
+ lq->vpl_internal_count--;
+ } else {
+ lq->vpl_external_count--;
+ }
+ VPL_UNLOCK(&lq->vpl_lock);
+ was_pageable = FALSE;
+ break;
+ }
+ case VM_PAGE_ON_ACTIVE_Q:
+ {
+ vm_page_queue_remove(&vm_page_queue_active,
+ mem, vm_page_t, pageq);
+ vm_page_active_count--;
+ break;
+ }
+
+ case VM_PAGE_ON_INACTIVE_INTERNAL_Q:
+ {
+ assert(m_object->internal == TRUE);
+
+ vm_page_inactive_count--;
+ vm_page_queue_remove(&vm_page_queue_anonymous,
+ mem, vm_page_t, pageq);
+ vm_page_anonymous_count--;
+ vm_purgeable_q_advance_all();
+ break;
+ }
+
+ case VM_PAGE_ON_INACTIVE_EXTERNAL_Q:
+ {
+ assert(m_object->internal == FALSE);
+
+ vm_page_inactive_count--;
+ vm_page_queue_remove(&vm_page_queue_inactive,
+ mem, vm_page_t, pageq);
+ vm_purgeable_q_advance_all();
+ break;
+ }
+
+ case VM_PAGE_ON_INACTIVE_CLEANED_Q:
+ {
+ assert(m_object->internal == FALSE);
+
+ vm_page_inactive_count--;
+ vm_page_queue_remove(&vm_page_queue_cleaned,
+ mem, vm_page_t, pageq);
+ vm_page_cleaned_count--;
+ break;
+ }
+
+ case VM_PAGE_ON_THROTTLED_Q:
+ {
+ assert(m_object->internal == TRUE);
+
+ vm_page_queue_remove(&vm_page_queue_throttled,
+ mem, vm_page_t, pageq);
+ vm_page_throttled_count--;
+ was_pageable = FALSE;
+ break;
+ }
+
+ case VM_PAGE_ON_SPECULATIVE_Q:
+ {
+ assert(m_object->internal == FALSE);
+
+ vm_page_remque(&mem->pageq);
+ vm_page_speculative_count--;
+ break;
+ }
+
+#if CONFIG_SECLUDED_MEMORY
+ case VM_PAGE_ON_SECLUDED_Q:
+ {
+ vm_page_queue_remove(&vm_page_queue_secluded,
+ mem, vm_page_t, pageq);
+ vm_page_secluded_count--;
+ if (m_object == VM_OBJECT_NULL) {
+ vm_page_secluded_count_free--;
+ was_pageable = FALSE;
+ } else {
+ assert(!m_object->internal);
+ vm_page_secluded_count_inuse--;
+ was_pageable = FALSE;
+// was_pageable = TRUE;
+ }
+ break;
+ }
+#endif /* CONFIG_SECLUDED_MEMORY */
+
+ default:
+ {
+ /*
+ * if (mem->vm_page_q_state == VM_PAGE_ON_PAGEOUT_Q)
+ * NOTE: vm_page_queues_remove does not deal with removing pages from the pageout queue...
+ * the caller is responsible for determing if the page is on that queue, and if so, must
+ * either first remove it (it needs both the page queues lock and the object lock to do
+ * this via vm_pageout_steal_laundry), or avoid the call to vm_page_queues_remove
+ *
+ * we also don't expect to encounter VM_PAGE_ON_FREE_Q, VM_PAGE_ON_FREE_LOCAL_Q, VM_PAGE_ON_FREE_LOPAGE_Q
+ * or any of the undefined states
+ */
+ panic("vm_page_queues_remove - bad page q_state (%p, %d)\n", mem, mem->vm_page_q_state);
+ break;
+ }
+
+ }
+ VM_PAGE_ZERO_PAGEQ_ENTRY(mem);
+ mem->vm_page_q_state = VM_PAGE_NOT_ON_Q;
+
+#if CONFIG_BACKGROUND_QUEUE
+ if (remove_from_backgroundq == TRUE)
+ vm_page_remove_from_backgroundq(mem);
+#endif
+ if (was_pageable) {
+ if (m_object->internal) {
+ vm_page_pageable_internal_count--;
+ } else {
+ vm_page_pageable_external_count--;
+ }
+ }
+}
+
+void
+vm_page_remove_internal(vm_page_t page)
+{
+ vm_object_t __object = VM_PAGE_OBJECT(page);
+ if (page == __object->memq_hint) {
+ vm_page_t __new_hint;
+ vm_page_queue_entry_t __qe;
+ __qe = (vm_page_queue_entry_t)vm_page_queue_next(&page->listq);
+ if (vm_page_queue_end(&__object->memq, __qe)) {
+ __qe = (vm_page_queue_entry_t)vm_page_queue_prev(&page->listq);
+ if (vm_page_queue_end(&__object->memq, __qe)) {
+ __qe = NULL;
+ }
+ }
+ __new_hint = (vm_page_t)((uintptr_t) __qe);
+ __object->memq_hint = __new_hint;
+ }
+ vm_page_queue_remove(&__object->memq, page, vm_page_t, listq);
+#if CONFIG_SECLUDED_MEMORY
+ if (__object->eligible_for_secluded) {
+ vm_page_secluded.eligible_for_secluded--;
+ }
+#endif /* CONFIG_SECLUDED_MEMORY */
+}
+
+void
+vm_page_enqueue_inactive(vm_page_t mem, boolean_t first)
+{
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(mem);
+
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+ assert(!mem->fictitious);
+ assert(!mem->laundry);
+ assert(mem->vm_page_q_state == VM_PAGE_NOT_ON_Q);
+ vm_page_check_pageable_safe(mem);
+
+#if CONFIG_SECLUDED_MEMORY
+ if (secluded_for_filecache &&
+ vm_page_secluded_target != 0 &&
+ num_tasks_can_use_secluded_mem == 0 &&
+ m_object->eligible_for_secluded &&
+ secluded_aging_policy == SECLUDED_AGING_FIFO) {
+ mem->vm_page_q_state = VM_PAGE_ON_SECLUDED_Q;
+ vm_page_queue_enter(&vm_page_queue_secluded, mem,
+ vm_page_t, pageq);
+ vm_page_secluded_count++;
+ vm_page_secluded_count_inuse++;
+ assert(!m_object->internal);
+// vm_page_pageable_external_count++;
+ return;
+ }
+#endif /* CONFIG_SECLUDED_MEMORY */
+
+ if (m_object->internal) {
+ mem->vm_page_q_state = VM_PAGE_ON_INACTIVE_INTERNAL_Q;
+
+ if (first == TRUE)
+ vm_page_queue_enter_first(&vm_page_queue_anonymous, mem, vm_page_t, pageq);
+ else
+ vm_page_queue_enter(&vm_page_queue_anonymous, mem, vm_page_t, pageq);
+
+ vm_page_anonymous_count++;
+ vm_page_pageable_internal_count++;
+ } else {
+ mem->vm_page_q_state = VM_PAGE_ON_INACTIVE_EXTERNAL_Q;
+
+ if (first == TRUE)
+ vm_page_queue_enter_first(&vm_page_queue_inactive, mem, vm_page_t, pageq);
+ else
+ vm_page_queue_enter(&vm_page_queue_inactive, mem, vm_page_t, pageq);
+
+ vm_page_pageable_external_count++;
+ }
+ vm_page_inactive_count++;
+ token_new_pagecount++;
+
+#if CONFIG_BACKGROUND_QUEUE
+ if (mem->vm_page_in_background)
+ vm_page_add_to_backgroundq(mem, FALSE);
+#endif
+}
+
+void
+vm_page_enqueue_active(vm_page_t mem, boolean_t first)
+{
+ vm_object_t m_object;
+
+ m_object = VM_PAGE_OBJECT(mem);
+
+ LCK_MTX_ASSERT(&vm_page_queue_lock, LCK_MTX_ASSERT_OWNED);
+ assert(!mem->fictitious);
+ assert(!mem->laundry);
+ assert(mem->vm_page_q_state == VM_PAGE_NOT_ON_Q);
+ vm_page_check_pageable_safe(mem);
+
+ mem->vm_page_q_state = VM_PAGE_ON_ACTIVE_Q;
+ if (first == TRUE)
+ vm_page_queue_enter_first(&vm_page_queue_active, mem, vm_page_t, pageq);
+ else
+ vm_page_queue_enter(&vm_page_queue_active, mem, vm_page_t, pageq);
+ vm_page_active_count++;
+
+ if (m_object->internal) {
+ vm_page_pageable_internal_count++;
+ } else {
+ vm_page_pageable_external_count++;
+ }
+
+#if CONFIG_BACKGROUND_QUEUE
+ if (mem->vm_page_in_background)
+ vm_page_add_to_backgroundq(mem, FALSE);
+#endif
+}
+
+/*
+ * Pages from special kernel objects shouldn't
+ * be placed on pageable queues.
+ */
+void
+vm_page_check_pageable_safe(vm_page_t page)
+{
+ vm_object_t page_object;
+
+ page_object = VM_PAGE_OBJECT(page);
+
+ if (page_object == kernel_object) {
+ panic("vm_page_check_pageable_safe: trying to add page" \
+ "from kernel object (%p) to pageable queue", kernel_object);
+ }
+
+ if (page_object == compressor_object) {
+ panic("vm_page_check_pageable_safe: trying to add page" \
+ "from compressor object (%p) to pageable queue", compressor_object);
+ }
+
+ if (page_object == vm_submap_object) {
+ panic("vm_page_check_pageable_safe: trying to add page" \
+ "from submap object (%p) to pageable queue", vm_submap_object);
+ }
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * wired page diagnose
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include <libkern/OSKextLibPrivate.h>
+
+vm_allocation_site_t *
+vm_allocation_sites[VM_KERN_MEMORY_COUNT];
+
+vm_tag_t
+vm_tag_bt(void)
+{
+ uintptr_t* frameptr;
+ uintptr_t* frameptr_next;
+ uintptr_t retaddr;
+ uintptr_t kstackb, kstackt;
+ const vm_allocation_site_t * site;
+ thread_t cthread;
+
+ cthread = current_thread();
+ if (__improbable(cthread == NULL)) return VM_KERN_MEMORY_OSFMK;
+
+ kstackb = cthread->kernel_stack;
+ kstackt = kstackb + kernel_stack_size;
+
+ /* Load stack frame pointer (EBP on x86) into frameptr */
+ frameptr = __builtin_frame_address(0);
+ site = NULL;
+ while (frameptr != NULL)
+ {
+ /* Verify thread stack bounds */
+ if (((uintptr_t)(frameptr + 2) > kstackt) || ((uintptr_t)frameptr < kstackb)) break;
+
+ /* Next frame pointer is pointed to by the previous one */
+ frameptr_next = (uintptr_t*) *frameptr;
+
+ /* Pull return address from one spot above the frame pointer */
+ retaddr = *(frameptr + 1);
+
+ if ((retaddr < vm_kernel_stext) || (retaddr > vm_kernel_top))
+ {
+ site = OSKextGetAllocationSiteForCaller(retaddr);
+ break;
+ }
+
+ frameptr = frameptr_next;
+ }
+ return (site ? site->tag : VM_KERN_MEMORY_NONE);
+}
+
+static uint64_t free_tag_bits[256/64];
+
+void
+vm_tag_alloc_locked(vm_allocation_site_t * site)
+{
+ vm_tag_t tag;
+ uint64_t avail;
+ uint64_t idx;
+
+ if (site->tag) return;
+
+ idx = 0;
+ while (TRUE)
+ {
+ avail = free_tag_bits[idx];
+ if (avail)
+ {
+ tag = __builtin_clzll(avail);
+ avail &= ~(1ULL << (63 - tag));
+ free_tag_bits[idx] = avail;
+ tag += (idx << 6);
+ break;
+ }
+ idx++;
+ if (idx >= (sizeof(free_tag_bits) / sizeof(free_tag_bits[0])))
+ {
+ tag = VM_KERN_MEMORY_ANY;
+ break;
+ }
+ }
+ site->tag = tag;
+ if (VM_KERN_MEMORY_ANY != tag)
+ {
+ assert(!vm_allocation_sites[tag]);
+ vm_allocation_sites[tag] = site;
+ }
+}
+
+static void
+vm_tag_free_locked(vm_tag_t tag)
+{
+ uint64_t avail;
+ uint32_t idx;
+ uint64_t bit;
+
+ if (VM_KERN_MEMORY_ANY == tag) return;
+
+ idx = (tag >> 6);
+ avail = free_tag_bits[idx];
+ tag &= 63;
+ bit = (1ULL << (63 - tag));
+ assert(!(avail & bit));
+ free_tag_bits[idx] = (avail | bit);
+}
+
+static void
+vm_tag_init(void)
+{
+ vm_tag_t tag;
+ for (tag = VM_KERN_MEMORY_FIRST_DYNAMIC; tag < VM_KERN_MEMORY_ANY; tag++)
+ {
+ vm_tag_free_locked(tag);
+ }
+}
+
+vm_tag_t
+vm_tag_alloc(vm_allocation_site_t * site)
+{
+ vm_tag_t tag;
+
+ if (VM_TAG_BT & site->flags)
+ {
+ tag = vm_tag_bt();
+ if (VM_KERN_MEMORY_NONE != tag) return (tag);
+ }
+
+ if (!site->tag)
+ {
+ lck_spin_lock(&vm_allocation_sites_lock);
+ vm_tag_alloc_locked(site);
+ lck_spin_unlock(&vm_allocation_sites_lock);
+ }
+
+ return (site->tag);
+}
+
+static void
+vm_page_count_object(mach_memory_info_t * sites, unsigned int __unused num_sites, vm_object_t object)
+{
+ if (!object->wired_page_count) return;
+ if (object != kernel_object)
+ {
+ assert(object->wire_tag < num_sites);
+ sites[object->wire_tag].size += ptoa_64(object->wired_page_count);
+ }
+}
+
+typedef void (*vm_page_iterate_proc)(mach_memory_info_t * sites,
+ unsigned int num_sites, vm_object_t object);
+
+static void
+vm_page_iterate_purgeable_objects(mach_memory_info_t * sites, unsigned int num_sites,
+ vm_page_iterate_proc proc, purgeable_q_t queue,
+ int group)
+{
+ vm_object_t object;
+
+ for (object = (vm_object_t) queue_first(&queue->objq[group]);
+ !queue_end(&queue->objq[group], (queue_entry_t) object);
+ object = (vm_object_t) queue_next(&object->objq))
+ {
+ proc(sites, num_sites, object);
+ }
+}
+
+static void
+vm_page_iterate_objects(mach_memory_info_t * sites, unsigned int num_sites,
+ vm_page_iterate_proc proc)
+{
+ purgeable_q_t volatile_q;
+ queue_head_t * nonvolatile_q;
+ vm_object_t object;
+ int group;
+
+ lck_spin_lock(&vm_objects_wired_lock);
+ queue_iterate(&vm_objects_wired,
+ object,
+ vm_object_t,
+ objq)
+ {
+ proc(sites, num_sites, object);
+ }
+ lck_spin_unlock(&vm_objects_wired_lock);
+
+ lck_mtx_lock(&vm_purgeable_queue_lock);
+ nonvolatile_q = &purgeable_nonvolatile_queue;
+ for (object = (vm_object_t) queue_first(nonvolatile_q);
+ !queue_end(nonvolatile_q, (queue_entry_t) object);
+ object = (vm_object_t) queue_next(&object->objq))
+ {
+ proc(sites, num_sites, object);
+ }
+
+ volatile_q = &purgeable_queues[PURGEABLE_Q_TYPE_OBSOLETE];
+ vm_page_iterate_purgeable_objects(sites, num_sites, proc, volatile_q, 0);
+
+ volatile_q = &purgeable_queues[PURGEABLE_Q_TYPE_FIFO];
+ for (group = 0; group < NUM_VOLATILE_GROUPS; group++)
+ {
+ vm_page_iterate_purgeable_objects(sites, num_sites, proc, volatile_q, group);
+ }
+
+ volatile_q = &purgeable_queues[PURGEABLE_Q_TYPE_LIFO];
+ for (group = 0; group < NUM_VOLATILE_GROUPS; group++)
+ {
+ vm_page_iterate_purgeable_objects(sites, num_sites, proc, volatile_q, group);
+ }
+ lck_mtx_unlock(&vm_purgeable_queue_lock);
+}
+
+static uint64_t
+process_account(mach_memory_info_t * sites, unsigned int __unused num_sites, uint64_t zones_collectable_bytes)
+{
+ uint64_t found;
+ unsigned int idx;
+ vm_allocation_site_t * site;
+
+ assert(num_sites >= VM_KERN_MEMORY_COUNT);
+ found = 0;
+ for (idx = 0; idx < VM_KERN_MEMORY_COUNT; idx++)
+ {
+ found += sites[idx].size;
+ if (idx < VM_KERN_MEMORY_FIRST_DYNAMIC)
+ {
+ sites[idx].site = idx;
+ sites[idx].flags |= VM_KERN_SITE_TAG;
+ if (VM_KERN_MEMORY_ZONE == idx)
+ {
+ sites[idx].flags |= VM_KERN_SITE_HIDE;
+ sites[idx].collectable_bytes = zones_collectable_bytes;
+ } else sites[idx].flags |= VM_KERN_SITE_WIRED;
+ continue;
+ }
+ lck_spin_lock(&vm_allocation_sites_lock);
+ if ((site = vm_allocation_sites[idx]))
+ {
+ if (sites[idx].size)
+ {
+ sites[idx].flags |= VM_KERN_SITE_WIRED;
+ if (VM_TAG_KMOD == (VM_KERN_SITE_TYPE & site->flags))
+ {
+ sites[idx].site = OSKextGetKmodIDForSite(site, NULL, 0);
+ sites[idx].flags |= VM_KERN_SITE_KMOD;
+ }
+ else
+ {
+ sites[idx].site = VM_KERNEL_UNSLIDE(site);
+ sites[idx].flags |= VM_KERN_SITE_KERNEL;
+ }
+ site = NULL;
+ }
+ else
+ {
+#if 1
+ site = NULL;
+#else
+ /* this code would free a site with no allocations but can race a new
+ * allocation being made */
+ vm_tag_free_locked(site->tag);
+ site->tag = VM_KERN_MEMORY_NONE;
+ vm_allocation_sites[idx] = NULL;
+ if (!(VM_TAG_UNLOAD & site->flags)) site = NULL;
+#endif
+ }
+ }
+ lck_spin_unlock(&vm_allocation_sites_lock);
+ if (site) OSKextFreeSite(site);
+ }
+
+ return (found);
+}
+
+kern_return_t
+vm_page_diagnose(mach_memory_info_t * sites, unsigned int num_sites, uint64_t zones_collectable_bytes)
+{
+ enum { kMaxKernelDepth = 1 };
+ vm_map_t maps [kMaxKernelDepth];
+ vm_map_entry_t entries[kMaxKernelDepth];
+ vm_map_t map;
+ vm_map_entry_t entry;
+ vm_object_offset_t offset;
+ vm_page_t page;
+ int stackIdx, count;
+ uint64_t wired_size;
+ uint64_t wired_managed_size;
+ uint64_t wired_reserved_size;
+ mach_memory_info_t * counts;
+
+ bzero(sites, num_sites * sizeof(mach_memory_info_t));
+
+ if (!vm_page_wire_count_initial) return (KERN_ABORTED);
+
+ vm_page_iterate_objects(sites, num_sites, &vm_page_count_object);
+
+ wired_size = ptoa_64(vm_page_wire_count + vm_lopage_free_count + vm_page_throttled_count);
+ wired_reserved_size = ptoa_64(vm_page_wire_count_initial - vm_page_stolen_count + vm_page_throttled_count);
+ wired_managed_size = ptoa_64(vm_page_wire_count - vm_page_wire_count_initial);
+
+ assert(num_sites >= (VM_KERN_MEMORY_COUNT + VM_KERN_COUNTER_COUNT));
+ counts = &sites[VM_KERN_MEMORY_COUNT];
+
+#define SET_COUNT(xcount, xsize, xflags) \
+ counts[xcount].site = (xcount); \
+ counts[xcount].size = (xsize); \
+ counts[xcount].flags = VM_KERN_SITE_COUNTER | xflags;
+
+ SET_COUNT(VM_KERN_COUNT_MANAGED, ptoa_64(vm_page_pages), 0);
+ SET_COUNT(VM_KERN_COUNT_WIRED, wired_size, 0);
+ SET_COUNT(VM_KERN_COUNT_WIRED_MANAGED, wired_managed_size, 0);
+ SET_COUNT(VM_KERN_COUNT_RESERVED, wired_reserved_size, VM_KERN_SITE_WIRED);
+ SET_COUNT(VM_KERN_COUNT_STOLEN, ptoa_64(vm_page_stolen_count), VM_KERN_SITE_WIRED);
+ SET_COUNT(VM_KERN_COUNT_LOPAGE, ptoa_64(vm_lopage_free_count), VM_KERN_SITE_WIRED);
+
+#define SET_MAP(xcount, xsize, xfree, xlargest) \
+ counts[xcount].site = (xcount); \
+ counts[xcount].size = (xsize); \
+ counts[xcount].free = (xfree); \
+ counts[xcount].largest = (xlargest); \
+ counts[xcount].flags = VM_KERN_SITE_COUNTER;
+
+ vm_map_size_t map_size, map_free, map_largest;
+
+ vm_map_sizes(kernel_map, &map_size, &map_free, &map_largest);
+ SET_MAP(VM_KERN_COUNT_MAP_KERNEL, map_size, map_free, map_largest);
+
+ vm_map_sizes(zone_map, &map_size, &map_free, &map_largest);
+ SET_MAP(VM_KERN_COUNT_MAP_ZONE, map_size, map_free, map_largest);
+
+ vm_map_sizes(kalloc_map, &map_size, &map_free, &map_largest);
+ SET_MAP(VM_KERN_COUNT_MAP_KALLOC, map_size, map_free, map_largest);
+
+ map = kernel_map;
+ stackIdx = 0;
+ while (map)
+ {
+ vm_map_lock(map);
+ for (entry = map->hdr.links.next; map; entry = entry->links.next)
+ {
+ if (entry->is_sub_map)
+ {
+ assert(stackIdx < kMaxKernelDepth);
+ maps[stackIdx] = map;
+ entries[stackIdx] = entry;
+ stackIdx++;
+ map = VME_SUBMAP(entry);
+ entry = NULL;
+ break;
+ }
+ if (VME_OBJECT(entry) == kernel_object)
+ {
+ count = 0;
+ vm_object_lock(VME_OBJECT(entry));
+ for (offset = entry->links.start; offset < entry->links.end; offset += page_size)
+ {
+ page = vm_page_lookup(VME_OBJECT(entry), offset);
+ if (page && VM_PAGE_WIRED(page)) count++;
+ }
+ vm_object_unlock(VME_OBJECT(entry));
+
+ if (count)
+ {
+ assert(VME_ALIAS(entry) < num_sites);
+ sites[VME_ALIAS(entry)].size += ptoa_64(count);
+ }
+ }
+ while (map && (entry == vm_map_last_entry(map)))
+ {
+ vm_map_unlock(map);
+ if (!stackIdx) map = NULL;
+ else
+ {
+ --stackIdx;
+ map = maps[stackIdx];
+ entry = entries[stackIdx];
+ }
+ }
+ }
+ }
+
+ process_account(sites, num_sites, zones_collectable_bytes);
+
+ return (KERN_SUCCESS);
+}
+
+uint32_t
+vm_tag_get_kext(vm_tag_t tag, char * name, vm_size_t namelen)
+{
+ vm_allocation_site_t * site;
+ uint32_t kmodId;
+
+ kmodId = 0;
+ lck_spin_lock(&vm_allocation_sites_lock);
+ if ((site = vm_allocation_sites[tag]))
+ {
+ if (VM_TAG_KMOD == (VM_KERN_SITE_TYPE & site->flags))
+ {
+ kmodId = OSKextGetKmodIDForSite(site, name, namelen);
+ }
+ }
+ lck_spin_unlock(&vm_allocation_sites_lock);
+
+ return (kmodId);
+}
+
+#if DEBUG || DEVELOPMENT
+
+#define vm_tag_set_lock(set) lck_spin_lock(&set->lock)
+#define vm_tag_set_unlock(set) lck_spin_unlock(&set->lock)
+
+void
+vm_tag_set_init(vm_tag_set_t set, uint32_t count)
+{
+ lck_spin_init(&set->lock, &vm_page_lck_grp_bucket, &vm_page_lck_attr);
+ bzero(&set->entries, count * sizeof(struct vm_tag_set_entry));
+}
+
+kern_return_t
+vm_tag_set_enter(vm_tag_set_t set, uint32_t count, vm_tag_t tag)
+{
+ kern_return_t kr;
+ uint32_t idx, free;
+
+ vm_tag_set_lock(set);
+
+ assert(tag != VM_KERN_MEMORY_NONE);
+
+ kr = KERN_NO_SPACE;
+ free = -1U;
+ for (idx = 0; idx < count; idx++)
+ {
+ if (tag == set->entries[idx].tag)
+ {
+ set->entries[idx].count++;
+ kr = KERN_SUCCESS;
+ break;
+ }
+ if ((free == -1U) && !set->entries[idx].count) free = idx;
+ }
+
+ if ((KERN_SUCCESS != kr) && (free != -1U))
+ {
+ set->entries[free].tag = tag;
+ set->entries[free].count = 1;
+ kr = KERN_SUCCESS;
+ }
+
+ vm_tag_set_unlock(set);
+
+ return (kr);
+}
+
+kern_return_t
+vm_tag_set_remove(vm_tag_set_t set, uint32_t count, vm_tag_t tag, vm_tag_t * new_tagp)
+{
+ kern_return_t kr;
+ uint32_t idx;
+ vm_tag_t new_tag;
+
+ assert(tag != VM_KERN_MEMORY_NONE);
+ new_tag = VM_KERN_MEMORY_NONE;
+ vm_tag_set_lock(set);
+
+ kr = KERN_NOT_IN_SET;
+ for (idx = 0; idx < count; idx++)
+ {
+ if ((tag != VM_KERN_MEMORY_NONE)
+ && (tag == set->entries[idx].tag)
+ && set->entries[idx].count)
+ {
+ set->entries[idx].count--;
+ kr = KERN_SUCCESS;
+ if (set->entries[idx].count)
+ {
+ new_tag = tag;
+ break;
+ }
+ if (!new_tagp) break;
+ tag = VM_KERN_MEMORY_NONE;
+ }
+
+ if (set->entries[idx].count && (VM_KERN_MEMORY_NONE == new_tag))
+ {
+ new_tag = set->entries[idx].tag;
+ if (VM_KERN_MEMORY_NONE == tag) break;
+ }
+ }
+
+ vm_tag_set_unlock(set);
+ if (new_tagp) *new_tagp = new_tag;
+
+ return (kr);
+}
+
+#endif /* DEBUG || DEVELOPMENT */
projects / apple / xnu.git / blobdiff