xnu-344.tar.gz

[apple/xnu.git] / osfmk / vm / vm_map.c

diff --git a/osfmk/vm/vm_map.c b/osfmk/vm/vm_map.c
index f7c440eb6fbc5962a955c8803e1a643c9c9695b7..87b0b30db23af06e254b0e5903dcbea691790d51 100644 (file)
--- a/osfmk/vm/vm_map.c
+++ b/osfmk/vm/vm_map.c
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.

  *
  * @APPLE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_LICENSE_HEADER_START@
  * 


@@ -388,6 +388,7 @@ vm_map_create(
        result->max_offset = max;
        result->wiring_required = FALSE;
        result->no_zero_fill = FALSE;
        result->max_offset = max;
        result->wiring_required = FALSE;
        result->no_zero_fill = FALSE;

+       result->mapped = FALSE;

        result->wait_for_space = FALSE;
        result->first_free = vm_map_to_entry(result);
        result->hint = vm_map_to_entry(result);
        result->wait_for_space = FALSE;
        result->first_free = vm_map_to_entry(result);
        result->hint = vm_map_to_entry(result);


@@ -570,53 +571,7 @@ MACRO_END
        (entry)->vme_prev->vme_next = (entry)->vme_next;                \
        MACRO_END
 
        (entry)->vme_prev->vme_next = (entry)->vme_next;                \
        MACRO_END
 

-/*
- *     kernel_vm_map_reference:
- *
- *     kernel internal export version for iokit and bsd components
- *     in lieu of component interface semantics.
- *
- */
-void
-kernel_vm_map_reference(
-       register vm_map_t       map)
-{
-       if (map == VM_MAP_NULL)
-               return;
-
-       mutex_lock(&map->s_lock);
-#if    TASK_SWAPPER
-       assert(map->res_count > 0);
-       assert(map->ref_count >= map->res_count);
-       map->res_count++;
-#endif
-       map->ref_count++;
-       mutex_unlock(&map->s_lock);
-}
-

 #if    MACH_ASSERT && TASK_SWAPPER
 #if    MACH_ASSERT && TASK_SWAPPER

-/*
- *     vm_map_reference:
- *
- *     Adds valid reference and residence counts to the given map.
- *     The map must be in memory (i.e. non-zero residence count).
- *
- */
-void
-vm_map_reference(
-       register vm_map_t       map)
-{
-       if (map == VM_MAP_NULL)
-               return;
-
-       mutex_lock(&map->s_lock);
-       assert(map->res_count > 0);
-       assert(map->ref_count >= map->res_count);
-       map->ref_count++;
-       map->res_count++;
-       mutex_unlock(&map->s_lock);
-}
-

 /*
  *     vm_map_res_reference:
  *
 /*
  *     vm_map_res_reference:
  *


@@ -685,44 +640,6 @@ void vm_map_res_deallocate(register vm_map_t map)
 }
 #endif /* MACH_ASSERT && TASK_SWAPPER */
 
 }
 #endif /* MACH_ASSERT && TASK_SWAPPER */
 

-/*
- *     vm_map_deallocate:
- *
- *     Removes a reference from the specified map,
- *     destroying it if no references remain.
- *     The map should not be locked.
- */
-void
-vm_map_deallocate(
-       register vm_map_t       map)
-{
-       unsigned int            ref;
-
-       if (map == VM_MAP_NULL)
-               return;
-
-       mutex_lock(&map->s_lock);
-       ref = --map->ref_count;
-       if (ref > 0) {
-               vm_map_res_deallocate(map);
-               mutex_unlock(&map->s_lock);
-               return;
-       }
-       assert(map->ref_count == 0);
-       mutex_unlock(&map->s_lock);
-
-#if    TASK_SWAPPER
-       /*
-        * The map residence count isn't decremented here because
-        * the vm_map_delete below will traverse the entire map, 
-        * deleting entries, and the residence counts on objects
-        * and sharing maps will go away then.
-        */
-#endif
-
-       vm_map_destroy(map);
-}
-

 /*
  *     vm_map_destroy:
  *
 /*
  *     vm_map_destroy:
  *


@@ -1190,6 +1107,7 @@ vm_map_pmap_enter(
        vm_object_offset_t      offset,
        vm_prot_t               protection)
 {
        vm_object_offset_t      offset,
        vm_prot_t               protection)
 {

+       unsigned int            cache_attr;

 
        while (addr < end_addr) {
                register vm_page_t      m;
 
        while (addr < end_addr) {
                register vm_page_t      m;


@@ -1218,13 +1136,14 @@ vm_map_pmap_enter(
 
                if (m->no_isync == TRUE) {
                        pmap_sync_caches_phys(m->phys_addr);
 
                if (m->no_isync == TRUE) {
                        pmap_sync_caches_phys(m->phys_addr);

-

                        m->no_isync = FALSE;
                }
                        m->no_isync = FALSE;
                }

+
+               cache_attr = ((unsigned int)object->wimg_bits) & VM_WIMG_MASK;

                vm_object_unlock(object);
 
                vm_object_unlock(object);
 

-               PMAP_ENTER(map->pmap, addr, m,
-                          protection, FALSE);
+               PMAP_ENTER(map->pmap, addr, m, 
+                               protection, cache_attr, FALSE);

 
                vm_object_lock(object);
 
 
                vm_object_lock(object);
 


@@ -1524,13 +1443,16 @@ MACRO_BEGIN                                                             \
        if (VMCS_startaddr > VMCS_entry->vme_start) {                   \
                if(entry->use_pmap) {                                   \
                        vm_offset_t     pmap_base_addr;                 \
        if (VMCS_startaddr > VMCS_entry->vme_start) {                   \
                if(entry->use_pmap) {                                   \
                        vm_offset_t     pmap_base_addr;                 \

-                       vm_offset_t     pmap_end_addr;                  \

                                                                        \
                        pmap_base_addr = 0xF0000000 & entry->vme_start; \
                                                                        \
                        pmap_base_addr = 0xF0000000 & entry->vme_start; \

-                       pmap_end_addr = (pmap_base_addr + 0x10000000) - 1; \

                        pmap_unnest(map->pmap, pmap_base_addr,          \
                        pmap_unnest(map->pmap, pmap_base_addr,          \

-                               (pmap_end_addr - pmap_base_addr) + 1);  \
+                                                       0x10000000);    \

                        entry->use_pmap = FALSE;                        \
                        entry->use_pmap = FALSE;                        \

+               } else if(entry->object.vm_object                       \
+                       && !entry->is_sub_map                           \
+                       && entry->object.vm_object->phys_contiguous) {  \
+                       pmap_remove(map->pmap,                          \
+                               entry->vme_start, entry->vme_end);      \

                }                                                       \
                _vm_map_clip_start(&VMCS_map->hdr,VMCS_entry,VMCS_startaddr);\
        }                                                               \
                }                                                       \
                _vm_map_clip_start(&VMCS_map->hdr,VMCS_entry,VMCS_startaddr);\
        }                                                               \


@@ -1613,13 +1535,16 @@ MACRO_BEGIN                                                             \
        if (VMCE_endaddr < VMCE_entry->vme_end) {                       \
                if(entry->use_pmap) {                                   \
                        vm_offset_t     pmap_base_addr;                 \
        if (VMCE_endaddr < VMCE_entry->vme_end) {                       \
                if(entry->use_pmap) {                                   \
                        vm_offset_t     pmap_base_addr;                 \

-                       vm_offset_t     pmap_end_addr;                  \

                                                                        \
                        pmap_base_addr = 0xF0000000 & entry->vme_start; \
                                                                        \
                        pmap_base_addr = 0xF0000000 & entry->vme_start; \

-                       pmap_end_addr = (pmap_base_addr + 0x10000000) - 1; \

                        pmap_unnest(map->pmap, pmap_base_addr,          \
                        pmap_unnest(map->pmap, pmap_base_addr,          \

-                               (pmap_end_addr - pmap_base_addr) + 1);  \
+                                                       0x10000000);    \

                        entry->use_pmap = FALSE;                        \
                        entry->use_pmap = FALSE;                        \

+               } else if(entry->object.vm_object                       \
+                       && !entry->is_sub_map                           \
+                       && entry->object.vm_object->phys_contiguous) {  \
+                       pmap_remove(map->pmap,                          \
+                               entry->vme_start, entry->vme_end);      \

                }                                                       \
                _vm_map_clip_end(&VMCE_map->hdr,VMCE_entry,VMCE_endaddr); \
        }                                                               \
                }                                                       \
                _vm_map_clip_end(&VMCE_map->hdr,VMCE_entry,VMCE_endaddr); \
        }                                                               \


@@ -1789,6 +1714,8 @@ vm_map_submap(
 
        vm_map_lock(map);
 
 
        vm_map_lock(map);
 

+       submap->mapped = TRUE;
+

        VM_MAP_RANGE_CHECK(map, start, end);
 
        if (vm_map_lookup_entry(map, start, &entry)) {
        VM_MAP_RANGE_CHECK(map, start, end);
 
        if (vm_map_lookup_entry(map, start, &entry)) {


@@ -2084,7 +2011,8 @@ vm_map_wire_nested(
        register vm_offset_t    end,
        register vm_prot_t      access_type,
        boolean_t               user_wire,
        register vm_offset_t    end,
        register vm_prot_t      access_type,
        boolean_t               user_wire,

-       pmap_t                  map_pmap)
+       pmap_t                  map_pmap, 
+       vm_offset_t             pmap_addr)

 {
        register vm_map_entry_t entry;
        struct vm_map_entry     *first_entry, tmp_entry;
 {
        register vm_map_entry_t entry;
        struct vm_map_entry     *first_entry, tmp_entry;


@@ -2093,7 +2021,7 @@ vm_map_wire_nested(
        kern_return_t           rc;
        boolean_t               need_wakeup;
        boolean_t               main_map = FALSE;
        kern_return_t           rc;
        boolean_t               need_wakeup;
        boolean_t               main_map = FALSE;

-       boolean_t               interruptible_state;
+       wait_interrupt_t        interruptible_state;

        thread_t                cur_thread;
        unsigned int            last_timestamp;
        vm_size_t               size;
        thread_t                cur_thread;
        unsigned int            last_timestamp;
        vm_size_t               size;


@@ -2130,6 +2058,8 @@ vm_map_wire_nested(
                 * block after informing other thread to wake us up.
                 */
                if (entry->in_transition) {
                 * block after informing other thread to wake us up.
                 */
                if (entry->in_transition) {

+                       wait_result_t wait_result;
+

                        /*
                         * We have not clipped the entry.  Make sure that
                         * the start address is in range so that the lookup
                        /*
                         * We have not clipped the entry.  Make sure that
                         * the start address is in range so that the lookup


@@ -2150,22 +2080,21 @@ vm_map_wire_nested(
                        /*
                         * User wiring is interruptible
                         */
                        /*
                         * User wiring is interruptible
                         */

-                       vm_map_entry_wait(map, 
+                       wait_result = vm_map_entry_wait(map, 

                                          (user_wire) ? THREAD_ABORTSAFE :
                                                        THREAD_UNINT);
                                          (user_wire) ? THREAD_ABORTSAFE :
                                                        THREAD_UNINT);

-                       if (user_wire && cur_thread->wait_result ==
-                                                       THREAD_INTERRUPTED) {
+                       if (user_wire && wait_result == THREAD_INTERRUPTED) {

                                /*
                                 * undo the wirings we have done so far
                                 * We do not clear the needs_wakeup flag,
                                 * because we cannot tell if we were the
                                 * only one waiting.
                                 */
                                /*
                                 * undo the wirings we have done so far
                                 * We do not clear the needs_wakeup flag,
                                 * because we cannot tell if we were the
                                 * only one waiting.
                                 */

+                               vm_map_unlock(map);

                                vm_map_unwire(map, start, s, user_wire);
                                return(KERN_FAILURE);
                        }
 
                                vm_map_unwire(map, start, s, user_wire);
                                return(KERN_FAILURE);
                        }
 

-                       vm_map_lock(map);

                        /*
                         * Cannot avoid a lookup here. reset timestamp.
                         */
                        /*
                         * Cannot avoid a lookup here. reset timestamp.
                         */


@@ -2195,13 +2124,14 @@ vm_map_wire_nested(
                if(entry->is_sub_map) {
                        vm_offset_t     sub_start;
                        vm_offset_t     sub_end;
                if(entry->is_sub_map) {
                        vm_offset_t     sub_start;
                        vm_offset_t     sub_end;

+                       vm_offset_t     local_start;

                        vm_offset_t     local_end;
                        pmap_t          pmap;
                        
                        vm_map_clip_start(map, entry, start);
                        vm_map_clip_end(map, entry, end);
 
                        vm_offset_t     local_end;
                        pmap_t          pmap;
                        
                        vm_map_clip_start(map, entry, start);
                        vm_map_clip_end(map, entry, end);
 

-                       sub_start += entry->offset;
+                       sub_start = entry->offset;

                        sub_end = entry->vme_end - entry->vme_start;
                        sub_end += entry->offset;
                        
                        sub_end = entry->vme_end - entry->vme_start;
                        sub_end += entry->offset;
                        


@@ -2209,8 +2139,16 @@ vm_map_wire_nested(
                        if(map_pmap == NULL) {
                                if(entry->use_pmap) {
                                        pmap = entry->object.sub_map->pmap;
                        if(map_pmap == NULL) {
                                if(entry->use_pmap) {
                                        pmap = entry->object.sub_map->pmap;

+                                       /* ppc implementation requires that */
+                                       /* submaps pmap address ranges line */
+                                       /* up with parent map */
+#ifdef notdef
+                                       pmap_addr = sub_start;
+#endif
+                                       pmap_addr = start;

                                } else {
                                        pmap = map->pmap;
                                } else {
                                        pmap = map->pmap;

+                                       pmap_addr = start;

                                }
                                if (entry->wired_count) {
                                        if (entry->wired_count 
                                }
                                if (entry->wired_count) {
                                        if (entry->wired_count 


@@ -2225,8 +2163,10 @@ vm_map_wire_nested(
                                                entry->vme_start, user_wire);
                                           return(KERN_FAILURE);
                                        }
                                                entry->vme_start, user_wire);
                                           return(KERN_FAILURE);
                                        }

-                                       if (!user_wire || 
-                                             (entry->user_wired_count++ == 0))
+                                       if(user_wire)
+                                               entry->user_wired_count++;
+                                       if((!user_wire) ||
+                                            (entry->user_wired_count == 0))

                                                entry->wired_count++;
                                        entry = entry->vme_next;
                                        continue;
                                                entry->wired_count++;
                                        entry = entry->vme_next;
                                        continue;


@@ -2239,7 +2179,6 @@ vm_map_wire_nested(
                                        vm_prot_t               prot;
                                        boolean_t               wired;
                                        vm_behavior_t           behavior;
                                        vm_prot_t               prot;
                                        boolean_t               wired;
                                        vm_behavior_t           behavior;

-                                       vm_offset_t             local_start;

                                        vm_map_entry_t          local_entry;
                                        vm_map_version_t         version;
                                        vm_map_t                lookup_map;
                                        vm_map_entry_t          local_entry;
                                        vm_map_version_t         version;
                                        vm_map_t                lookup_map;


@@ -2252,7 +2191,7 @@ vm_map_wire_nested(
                                        vm_map_lock_write_to_read(map);
                                        if(vm_map_lookup_locked(
                                                &lookup_map, local_start, 
                                        vm_map_lock_write_to_read(map);
                                        if(vm_map_lookup_locked(
                                                &lookup_map, local_start, 

-                                               VM_PROT_WRITE,
+                                               access_type,

                                                &version, &object,
                                                &offset, &prot, &wired,
                                                &behavior, &offset_lo,
                                                &version, &object,
                                                &offset, &prot, &wired,
                                                &behavior, &offset_lo,


@@ -2265,17 +2204,11 @@ vm_map_wire_nested(
                                        }
                                        if(pmap_map != lookup_map)
                                                vm_map_unlock(pmap_map);
                                        }
                                        if(pmap_map != lookup_map)
                                                vm_map_unlock(pmap_map);

-                                       if(lookup_map != map) {
-                                               vm_map_unlock(lookup_map);
-                                               vm_map_lock(map);
-                                       } else {
-                                               vm_map_unlock(map);
-                                               vm_map_lock(map);
-                                       }
-                                       last_timestamp = 
-                                               version.main_timestamp;
+                                       vm_map_unlock_read(lookup_map);
+                                       vm_map_lock(map);

                                        vm_object_unlock(object);
                                        vm_object_unlock(object);

-                                       if (vm_map_lookup_entry(map, 
+
+                                       if (!vm_map_lookup_entry(map, 

                                                local_start, &local_entry)) {
                                                vm_map_unlock(map);
                                                vm_map_unwire(map, start,
                                                local_start, &local_entry)) {
                                                vm_map_unlock(map);
                                                vm_map_unwire(map, start,


@@ -2283,11 +2216,15 @@ vm_map_wire_nested(
                                                return(KERN_FAILURE);
                                        }
                                        /* did we have a change of type? */
                                                return(KERN_FAILURE);
                                        }
                                        /* did we have a change of type? */

-                                       if (!local_entry->is_sub_map)
+                                       if (!local_entry->is_sub_map) {
+                                               last_timestamp = map->timestamp;

                                                continue;
                                                continue;

+                                       }

                                        entry = local_entry;
                                        if (user_wire)
                                                entry->user_wired_count++;
                                        entry = local_entry;
                                        if (user_wire)
                                                entry->user_wired_count++;

+                                       if((!user_wire) || 
+                                               (entry->user_wired_count == 1))

                                        entry->wired_count++;
 
                                        entry->in_transition = TRUE;
                                        entry->wired_count++;
 
                                        entry->in_transition = TRUE;


@@ -2297,32 +2234,34 @@ vm_map_wire_nested(
                                                entry->object.sub_map, 
                                                sub_start, sub_end,
                                                access_type, 
                                                entry->object.sub_map, 
                                                sub_start, sub_end,
                                                access_type, 

-                                               user_wire, pmap);
+                                               user_wire, pmap, pmap_addr);

                                        vm_map_lock(map);
                                        vm_map_lock(map);

-                                       last_timestamp = map->timestamp;

                                }
                        } else {
                                }
                        } else {

+                               local_start = entry->vme_start;
+                               if (user_wire)
+                                       entry->user_wired_count++;
+                               if((!user_wire) || 
+                                       (entry->user_wired_count == 1))
+                                       entry->wired_count++;

                                vm_map_unlock(map);
                                rc = vm_map_wire_nested(entry->object.sub_map, 
                                                sub_start, sub_end,
                                                access_type, 
                                vm_map_unlock(map);
                                rc = vm_map_wire_nested(entry->object.sub_map, 
                                                sub_start, sub_end,
                                                access_type, 

-                                               user_wire, pmap);
+                                               user_wire, pmap, pmap_addr);

                                vm_map_lock(map);
                                vm_map_lock(map);

-                               last_timestamp = map->timestamp;

                        }
                        s = entry->vme_start;
                        e = entry->vme_end;
                        }
                        s = entry->vme_start;
                        e = entry->vme_end;

-                       if (last_timestamp+1 != map->timestamp) {
+

                        /*
                         * Find the entry again.  It could have been clipped
                         * after we unlocked the map.
                         */
                        /*
                         * Find the entry again.  It could have been clipped
                         * after we unlocked the map.
                         */

-                               if (!vm_map_lookup_entry(map, local_end,
-                                                        &first_entry))
-                                       panic("vm_map_wire: re-lookup failed");
-
-                               entry = first_entry;
-                       }
+                       if (!vm_map_lookup_entry(map, local_start,
+                                                &first_entry))
+                               panic("vm_map_wire: re-lookup failed");
+                       entry = first_entry;

 
                        last_timestamp = map->timestamp;
                        while ((entry != vm_map_to_entry(map)) &&
 
                        last_timestamp = map->timestamp;
                        while ((entry != vm_map_to_entry(map)) &&


@@ -2334,11 +2273,11 @@ vm_map_wire_nested(
                                        need_wakeup = TRUE;
                                }
                                if (rc != KERN_SUCCESS) {/* from vm_*_wire */
                                        need_wakeup = TRUE;
                                }
                                if (rc != KERN_SUCCESS) {/* from vm_*_wire */

-                                  if(main_map) {

                                        if (user_wire)
                                                entry->user_wired_count--;
                                        if (user_wire)
                                                entry->user_wired_count--;

-                                       entry->wired_count--;
-                                  }
+                                       if ((!user_wire) || 
+                                               (entry->user_wired_count == 0))
+                                               entry->wired_count--;

                                }
                                entry = entry->vme_next;
                        }
                                }
                                entry = entry->vme_next;
                        }


@@ -2359,7 +2298,7 @@ vm_map_wire_nested(
                 * If this entry is already wired then increment
                 * the appropriate wire reference count.
                 */
                 * If this entry is already wired then increment
                 * the appropriate wire reference count.
                 */

-               if (entry->wired_count && main_map) {
+               if (entry->wired_count) {

                        /* sanity check: wired_count is a short */
                        if (entry->wired_count >= MAX_WIRE_COUNT)
                                panic("vm_map_wire: too many wirings");
                        /* sanity check: wired_count is a short */
                        if (entry->wired_count >= MAX_WIRE_COUNT)
                                panic("vm_map_wire: too many wirings");


@@ -2377,7 +2316,9 @@ vm_map_wire_nested(
                         */
                        vm_map_clip_start(map, entry, start);
                        vm_map_clip_end(map, entry, end);
                         */
                        vm_map_clip_start(map, entry, start);
                        vm_map_clip_end(map, entry, end);

-                       if (!user_wire || (entry->user_wired_count++ == 0))
+                       if (user_wire)
+                               entry->user_wired_count++;
+                       if ((!user_wire) || (entry->user_wired_count == 1))

                                entry->wired_count++;
 
                        entry = entry->vme_next;
                                entry->wired_count++;
 
                        entry = entry->vme_next;


@@ -2443,11 +2384,10 @@ vm_map_wire_nested(
 
                assert(entry->wired_count == 0 && entry->user_wired_count == 0);
 
 
                assert(entry->wired_count == 0 && entry->user_wired_count == 0);
 

-               if(main_map) {
-                       if (user_wire)
-                               entry->user_wired_count++;
+               if (user_wire)
+                       entry->user_wired_count++;
+               if ((!user_wire) || (entry->user_wired_count == 1))

                        entry->wired_count++;
                        entry->wired_count++;

-               }

 
                entry->in_transition = TRUE;
 
 
                entry->in_transition = TRUE;
 


@@ -2469,18 +2409,19 @@ vm_map_wire_nested(
                 */
                vm_map_unlock(map);
 
                 */
                vm_map_unlock(map);
 

-               if (!user_wire && cur_thread != THREAD_NULL) {
-                       interruptible_state = cur_thread->interruptible;
-                       cur_thread->interruptible = FALSE;
-               }
-                 
+               if (!user_wire && cur_thread != THREAD_NULL)
+                       interruptible_state = thread_interrupt_level(THREAD_UNINT);
+

                if(map_pmap)
                if(map_pmap)

-                       rc = vm_fault_wire(map, &tmp_entry, map_pmap);
+                       rc = vm_fault_wire(map, 
+                                       &tmp_entry, map_pmap, pmap_addr);

                else
                else

-                       rc = vm_fault_wire(map, &tmp_entry, map->pmap);
+                       rc = vm_fault_wire(map, 
+                                       &tmp_entry, map->pmap, 
+                                       tmp_entry.vme_start);

 
                if (!user_wire && cur_thread != THREAD_NULL)
 
                if (!user_wire && cur_thread != THREAD_NULL)

-                       cur_thread->interruptible = interruptible_state;
+                       thread_interrupt_level(interruptible_state);

 
                vm_map_lock(map);
 
 
                vm_map_lock(map);
 


@@ -2507,11 +2448,11 @@ vm_map_wire_nested(
                                need_wakeup = TRUE;
                        }
                        if (rc != KERN_SUCCESS) {       /* from vm_*_wire */
                                need_wakeup = TRUE;
                        }
                        if (rc != KERN_SUCCESS) {       /* from vm_*_wire */

-                               if(main_map) {
-                                       if (user_wire)
-                                               entry->user_wired_count--;
+                               if (user_wire)
+                                       entry->user_wired_count--;
+                               if ((!user_wire) || 
+                                               (entry->user_wired_count == 0))

                                        entry->wired_count--;
                                        entry->wired_count--;

-                               }

                        }
                        entry = entry->vme_next;
                }
                        }
                        entry = entry->vme_next;
                }


@@ -2564,7 +2505,7 @@ vm_map_wire(
         mapping_prealloc(end - start);
 #endif
        kret = vm_map_wire_nested(map, start, end, access_type, 
         mapping_prealloc(end - start);
 #endif
        kret = vm_map_wire_nested(map, start, end, access_type, 

-                                               user_wire, (pmap_t)NULL);
+                                               user_wire, (pmap_t)NULL, 0);

 #ifdef ppc
        mapping_relpre();
 #endif
 #ifdef ppc
        mapping_relpre();
 #endif


@@ -2590,7 +2531,8 @@ vm_map_unwire_nested(
        register vm_offset_t    start,
        register vm_offset_t    end,
        boolean_t               user_wire,
        register vm_offset_t    start,
        register vm_offset_t    end,
        boolean_t               user_wire,

-       pmap_t                  map_pmap)
+       pmap_t                  map_pmap,
+       vm_offset_t             pmap_addr)

 {
        register vm_map_entry_t entry;
        struct vm_map_entry     *first_entry, tmp_entry;
 {
        register vm_map_entry_t entry;
        struct vm_map_entry     *first_entry, tmp_entry;


@@ -2657,8 +2599,10 @@ vm_map_unwire_nested(
                        if(map_pmap == NULL) {
                           if(entry->use_pmap) {
                                        pmap = entry->object.sub_map->pmap;
                        if(map_pmap == NULL) {
                           if(entry->use_pmap) {
                                        pmap = entry->object.sub_map->pmap;

+                                       pmap_addr = sub_start;

                           } else {
                                        pmap = map->pmap;
                           } else {
                                        pmap = map->pmap;

+                                       pmap_addr = start;

                           }
                           if (entry->wired_count == 0 ||
                               (user_wire && entry->user_wired_count == 0)) {
                           }
                           if (entry->wired_count == 0 ||
                               (user_wire && entry->user_wired_count == 0)) {


@@ -2702,7 +2646,7 @@ vm_map_unwire_nested(
                            */
                           vm_map_unlock(map);
                           vm_map_unwire_nested(entry->object.sub_map, 
                            */
                           vm_map_unlock(map);
                           vm_map_unwire_nested(entry->object.sub_map, 

-                                       sub_start, sub_end, user_wire, pmap);
+                               sub_start, sub_end, user_wire, pmap, pmap_addr);

                           vm_map_lock(map);
 
                           if (last_timestamp+1 != map->timestamp) {
                           vm_map_lock(map);
 
                           if (last_timestamp+1 != map->timestamp) {


@@ -2740,7 +2684,7 @@ vm_map_unwire_nested(
                        } else {
                           vm_map_unlock(map);
                           vm_map_unwire_nested(entry->object.sub_map, 
                        } else {
                           vm_map_unlock(map);
                           vm_map_unwire_nested(entry->object.sub_map, 

-                                       sub_start, sub_end, user_wire, pmap);
+                               sub_start, sub_end, user_wire, pmap, pmap_addr);

                           vm_map_lock(map);
 
                           if (last_timestamp+1 != map->timestamp) {
                           vm_map_lock(map);
 
                           if (last_timestamp+1 != map->timestamp) {


@@ -2762,8 +2706,8 @@ vm_map_unwire_nested(
                }
 
 
                }
 
 

-               if (main_map && (entry->wired_count == 0 ||
-                  (user_wire && entry->user_wired_count == 0))) {
+               if ((entry->wired_count == 0) ||
+                  (user_wire && entry->user_wired_count == 0)) {

                        if (!user_wire)
                                panic("vm_map_unwire: entry is unwired");
 
                        if (!user_wire)
                                panic("vm_map_unwire: entry is unwired");
 


@@ -2792,14 +2736,12 @@ vm_map_unwire_nested(
                        continue;
                }
 
                        continue;
                }
 

-               if(main_map) {
-                  if (!user_wire || (--entry->user_wired_count == 0))
+               if (!user_wire || (--entry->user_wired_count == 0))

                        entry->wired_count--;
 
                        entry->wired_count--;
 

-                  if (entry->wired_count != 0) {
+               if (entry->wired_count != 0) {

                        entry = entry->vme_next;
                        continue;
                        entry = entry->vme_next;
                        continue;

-                  }

                }
 
                entry->in_transition = TRUE;
                }
 
                entry->in_transition = TRUE;


@@ -2811,9 +2753,12 @@ vm_map_unwire_nested(
                 */
                vm_map_unlock(map);
                if(map_pmap) {
                 */
                vm_map_unlock(map);
                if(map_pmap) {

-                       vm_fault_unwire(map, &tmp_entry, FALSE, map_pmap);
+                       vm_fault_unwire(map, 
+                               &tmp_entry, FALSE, map_pmap, pmap_addr);

                } else {
                } else {

-                       vm_fault_unwire(map, &tmp_entry, FALSE, map->pmap);
+                       vm_fault_unwire(map, 
+                               &tmp_entry, FALSE, map->pmap, 
+                               tmp_entry.vme_start);

                }
                vm_map_lock(map);
 
                }
                vm_map_lock(map);
 


@@ -2865,7 +2810,8 @@ vm_map_unwire(
        register vm_offset_t    end,
        boolean_t               user_wire)
 {
        register vm_offset_t    end,
        boolean_t               user_wire)
 {

-       return vm_map_unwire_nested(map, start, end, user_wire, (pmap_t)NULL);
+       return vm_map_unwire_nested(map, start, end, 
+                                       user_wire, (pmap_t)NULL, 0);

 }
 
 
 }
 
 


@@ -2951,7 +2897,20 @@ vm_map_submap_pmap_clean(
                                entry->object.sub_map,
                                entry->offset);
                } else {
                                entry->object.sub_map,
                                entry->offset);
                } else {

-                       pmap_remove(map->pmap, start, start + remove_size);
+
+                       if((map->mapped) && (map->ref_count)
+                               && (entry->object.vm_object != NULL)) {
+                               vm_object_pmap_protect(
+                                       entry->object.vm_object,
+                                       entry->offset,
+                                       remove_size,
+                                       PMAP_NULL,
+                                       entry->vme_start,
+                                       VM_PROT_NONE);
+                       } else {
+                               pmap_remove(map->pmap, 
+                                       start, start + remove_size);
+                       }

                }
        }
 
                }
        }
 


@@ -2971,9 +2930,21 @@ vm_map_submap_pmap_clean(
                                entry->object.sub_map,
                                entry->offset);
                } else {
                                entry->object.sub_map,
                                entry->offset);
                } else {

-                       pmap_remove(map->pmap, 
-                               (start + entry->vme_start) - offset,
-                               ((start + entry->vme_start) - offset) + remove_size);
+                       if((map->mapped) && (map->ref_count)
+                               && (entry->object.vm_object != NULL)) {
+                               vm_object_pmap_protect(
+                                       entry->object.vm_object,
+                                       entry->offset,
+                                       remove_size,
+                                       PMAP_NULL,
+                                       entry->vme_start,
+                                       VM_PROT_NONE);
+                       } else {
+                               pmap_remove(map->pmap, 
+                                  (start + entry->vme_start) - offset,
+                                  ((start + entry->vme_start) 
+                                       - offset) + remove_size);
+                       }

                }
                entry = entry->vme_next;
        } 
                }
                entry = entry->vme_next;
        } 


@@ -3047,6 +3018,8 @@ vm_map_delete(
 
                vm_map_clip_end(map, entry, end);
                if (entry->in_transition) {
 
                vm_map_clip_end(map, entry, end);
                if (entry->in_transition) {

+                       wait_result_t wait_result;
+

                        /*
                         * Another thread is wiring/unwiring this entry.
                         * Let the other thread know we are waiting.
                        /*
                         * Another thread is wiring/unwiring this entry.
                         * Let the other thread know we are waiting.


@@ -3063,21 +3036,17 @@ vm_map_delete(
                                need_wakeup = FALSE;
                        }
 
                                need_wakeup = FALSE;
                        }
 

-                       vm_map_entry_wait(map, interruptible);
+                       wait_result = vm_map_entry_wait(map, interruptible);

 
                        if (interruptible &&
 
                        if (interruptible &&

-                          current_thread()->wait_result == THREAD_INTERRUPTED)
+                           wait_result == THREAD_INTERRUPTED) {

                                /*
                                 * We do not clear the needs_wakeup flag,
                                 * since we cannot tell if we were the only one.
                                 */
                                /*
                                 * We do not clear the needs_wakeup flag,
                                 * since we cannot tell if we were the only one.
                                 */

+                               vm_map_unlock(map);

                                return KERN_ABORTED;
                                return KERN_ABORTED;

-
-                       vm_map_lock(map);
-                       /*
-                        * Cannot avoid a lookup here. reset timestamp.
-                        */
-                       last_timestamp = map->timestamp;
+                       }

 
                        /*
                         * The entry could have been clipped or it
 
                        /*
                         * The entry could have been clipped or it


@@ -3094,6 +3063,7 @@ vm_map_delete(
                                entry = first_entry;
                                SAVE_HINT(map, entry->vme_prev);
                        }
                                entry = first_entry;
                                SAVE_HINT(map, entry->vme_prev);
                        }

+                       last_timestamp = map->timestamp;

                        continue;
                } /* end in_transition */
 
                        continue;
                } /* end in_transition */
 


@@ -3120,28 +3090,24 @@ vm_map_delete(
                                 * error.
                                 */
                                if (flags & VM_MAP_REMOVE_WAIT_FOR_KWIRE) {
                                 * error.
                                 */
                                if (flags & VM_MAP_REMOVE_WAIT_FOR_KWIRE) {

+                                       wait_result_t wait_result;

 
                                        s = entry->vme_start;
                                        entry->needs_wakeup = TRUE;
 
                                        s = entry->vme_start;
                                        entry->needs_wakeup = TRUE;

-                                       vm_map_entry_wait(map, interruptible);
+                                       wait_result = vm_map_entry_wait(map,
+                                                               interruptible);

 
                                        if (interruptible &&
 
                                        if (interruptible &&

-                                           current_thread()->wait_result == 
-                                                       THREAD_INTERRUPTED)
+                                           wait_result == THREAD_INTERRUPTED) {

                                                /*
                                                 * We do not clear the 
                                                 * needs_wakeup flag, since we 
                                                 * cannot tell if we were the 
                                                 * only one.
                                                 */
                                                /*
                                                 * We do not clear the 
                                                 * needs_wakeup flag, since we 
                                                 * cannot tell if we were the 
                                                 * only one.
                                                 */

+                                               vm_map_unlock(map);

                                                return KERN_ABORTED;
                                                return KERN_ABORTED;

-
-                                       vm_map_lock(map);
-                                       /*
-                                        * Cannot avoid a lookup here. reset 
-                                        * timestamp.
-                                        */
-                                       last_timestamp = map->timestamp;
+                                       }

 
                                        /*
                                         * The entry could have been clipped or
 
                                        /*
                                         * The entry could have been clipped or


@@ -3160,6 +3126,7 @@ vm_map_delete(
                                                entry = first_entry;
                                                SAVE_HINT(map, entry->vme_prev);
                                        }
                                                entry = first_entry;
                                                SAVE_HINT(map, entry->vme_prev);
                                        }

+                                       last_timestamp = map->timestamp;

                                        continue;
                                }
                                else {
                                        continue;
                                }
                                else {


@@ -3182,7 +3149,7 @@ vm_map_delete(
                        vm_map_unlock(map);
                        vm_fault_unwire(map, &tmp_entry,
                                tmp_entry.object.vm_object == kernel_object,
                        vm_map_unlock(map);
                        vm_fault_unwire(map, &tmp_entry,
                                tmp_entry.object.vm_object == kernel_object,

-                               map->pmap);
+                               map->pmap, tmp_entry.vme_start);

                        vm_map_lock(map);
 
                        if (last_timestamp+1 != map->timestamp) {
                        vm_map_lock(map);
 
                        if (last_timestamp+1 != map->timestamp) {


@@ -3236,6 +3203,14 @@ vm_map_delete(
                                pmap_unnest(map->pmap, entry->vme_start,
                                        entry->vme_end - entry->vme_start);
 #endif
                                pmap_unnest(map->pmap, entry->vme_start,
                                        entry->vme_end - entry->vme_start);
 #endif

+                               if((map->mapped) && (map->ref_count)) {
+                                       /* clean up parent map/maps */
+                                       vm_map_submap_pmap_clean(
+                                               map, entry->vme_start,
+                                               entry->vme_end,
+                                               entry->object.sub_map,
+                                               entry->offset);
+                               }

                           } else {
                                vm_map_submap_pmap_clean(
                                        map, entry->vme_start, entry->vme_end,
                           } else {
                                vm_map_submap_pmap_clean(
                                        map, entry->vme_start, entry->vme_end,


@@ -3243,8 +3218,19 @@ vm_map_delete(
                                        entry->offset);
                           }
                        } else {
                                        entry->offset);
                           }
                        } else {

-                               pmap_remove(map->pmap, 
-                                       entry->vme_start, entry->vme_end);
+                               if((map->mapped) && (map->ref_count)) {
+                                       vm_object_pmap_protect(
+                                               entry->object.vm_object,
+                                               entry->offset,
+                                               entry->vme_end - entry->vme_start,
+                                               PMAP_NULL,
+                                               entry->vme_start,
+                                               VM_PROT_NONE);
+                               } else {
+                                       pmap_remove(map->pmap, 
+                                               entry->vme_start, 
+                                               entry->vme_end);
+                               }

                        }
                }
 
                        }
                }
 


@@ -3310,12 +3296,25 @@ vm_map_remove(
        register boolean_t      flags)
 {
        register kern_return_t  result;
        register boolean_t      flags)
 {
        register kern_return_t  result;

+       boolean_t       funnel_set = FALSE;
+       funnel_t        *curflock;
+       thread_t        cur_thread;
+
+       cur_thread = current_thread();

 
 

+       if ((cur_thread->funnel_state & TH_FN_OWNED) == TH_FN_OWNED) {
+               funnel_set = TRUE;
+               curflock = cur_thread->funnel_lock;
+               thread_funnel_set( curflock , FALSE);
+       }

        vm_map_lock(map);
        VM_MAP_RANGE_CHECK(map, start, end);
        result = vm_map_delete(map, start, end, flags);
        vm_map_unlock(map);
        vm_map_lock(map);
        VM_MAP_RANGE_CHECK(map, start, end);
        result = vm_map_delete(map, start, end, flags);
        vm_map_unlock(map);

-
+       if (funnel_set) {
+               thread_funnel_set( curflock, TRUE);
+               funnel_set = FALSE;
+       }

        return(result);
 }
 
        return(result);
 }
 


@@ -3445,9 +3444,9 @@ vm_map_overwrite_submap_recurse(
         */
 
        dst_end = round_page(dst_addr + dst_size);
         */
 
        dst_end = round_page(dst_addr + dst_size);

+       vm_map_lock(dst_map);

 
 start_pass_1:
 
 start_pass_1:

-       vm_map_lock(dst_map);

        if (!vm_map_lookup_entry(dst_map, dst_addr, &tmp_entry)) {
                vm_map_unlock(dst_map);
                return(KERN_INVALID_ADDRESS);
        if (!vm_map_lookup_entry(dst_map, dst_addr, &tmp_entry)) {
                vm_map_unlock(dst_map);
                return(KERN_INVALID_ADDRESS);


@@ -3679,8 +3678,9 @@ vm_map_copy_overwrite_nested(
                dst_end = dst_addr + copy->size;
        }
 
                dst_end = dst_addr + copy->size;
        }
 

-start_pass_1:

        vm_map_lock(dst_map);
        vm_map_lock(dst_map);

+
+start_pass_1:

        if (!vm_map_lookup_entry(dst_map, dst_addr, &tmp_entry)) {
                vm_map_unlock(dst_map);
                return(KERN_INVALID_ADDRESS);
        if (!vm_map_lookup_entry(dst_map, dst_addr, &tmp_entry)) {
                vm_map_unlock(dst_map);
                return(KERN_INVALID_ADDRESS);


@@ -3854,7 +3854,6 @@ start_overwrite:
                                        entry->needs_wakeup = TRUE;
                                        vm_map_entry_wait(dst_map, THREAD_UNINT);
 
                                        entry->needs_wakeup = TRUE;
                                        vm_map_entry_wait(dst_map, THREAD_UNINT);
 

-                               vm_map_lock(dst_map);

                                if(!vm_map_lookup_entry(dst_map, base_addr, 
                                                                &tmp_entry)) {
                                        vm_map_unlock(dst_map);
                                if(!vm_map_lookup_entry(dst_map, base_addr, 
                                                                &tmp_entry)) {
                                        vm_map_unlock(dst_map);


@@ -4536,32 +4535,48 @@ vm_map_copy_overwrite_aligned(
 
                        if (old_object != VM_OBJECT_NULL) {
                                if(entry->is_sub_map) {
 
                        if (old_object != VM_OBJECT_NULL) {
                                if(entry->is_sub_map) {

-                                  if(entry->use_pmap) {
+                                       if(entry->use_pmap) {

 #ifndef i386
 #ifndef i386

-                                     pmap_unnest(dst_map->pmap, 
-                                       entry->vme_start,
-                                       entry->vme_end - entry->vme_start);
+                                               pmap_unnest(dst_map->pmap, 
+                                                       entry->vme_start,
+                                                       entry->vme_end 
+                                                         - entry->vme_start);

 #endif
 #endif

-                                  } else {
-                                     vm_map_submap_pmap_clean(
-                                       dst_map, entry->vme_start, 
-                                       entry->vme_end,
-                                       entry->object.sub_map,
-                                       entry->offset);
-                                  }
-                                  vm_map_deallocate(
+                                               if(dst_map->mapped) {
+                                                       /* clean up parent */
+                                                       /* map/maps */
+                                                  vm_map_submap_pmap_clean(
+                                                       dst_map, entry->vme_start,
+                                                       entry->vme_end,
+                                                       entry->object.sub_map,
+                                                       entry->offset);
+                                               }
+                                       } else {
+                                               vm_map_submap_pmap_clean(
+                                                       dst_map, entry->vme_start, 
+                                                       entry->vme_end,
+                                                       entry->object.sub_map,
+                                                       entry->offset);
+                                       }
+                                       vm_map_deallocate(

                                                entry->object.sub_map);
                                                entry->object.sub_map);

-                               } else {
-                                       vm_object_pmap_protect(
-                                               old_object,
-                                               old_offset,
-                                               size,
-                                               pmap,
-                                               tmp_entry->vme_start,
-                                               VM_PROT_NONE);
-
+                               } else {
+                                       if(dst_map->mapped) {
+                                               vm_object_pmap_protect(
+                                                       entry->object.vm_object,
+                                                       entry->offset,
+                                                       entry->vme_end 
+                                                               - entry->vme_start,
+                                                       PMAP_NULL,
+                                                       entry->vme_start,
+                                                       VM_PROT_NONE);
+                                       } else {
+                                               pmap_remove(dst_map->pmap, 
+                                                       entry->vme_start, 
+                                                       entry->vme_end);
+                                       }

                                        vm_object_deallocate(old_object);
                                        vm_object_deallocate(old_object);

-                               }
+                               }

                        }
 
                        entry->is_sub_map = FALSE;
                        }
 
                        entry->is_sub_map = FALSE;


@@ -4624,8 +4639,8 @@ vm_map_copy_overwrite_aligned(
                                        /* a pc to execute it.         */
                                        /* No isync here */
 
                                        /* a pc to execute it.         */
                                        /* No isync here */
 

-                                       PMAP_ENTER(pmap, va, m,
-                                                  prot, FALSE);
+                                       PMAP_ENTER(pmap, va, m, prot, 
+                                               VM_WIMG_USE_DEFAULT, FALSE);

                
                                        vm_object_lock(object);
                                        vm_page_lock_queues();
                
                                        vm_object_lock(object);
                                        vm_page_lock_queues();


@@ -4666,7 +4681,8 @@ vm_map_copy_overwrite_aligned(
 
                        vm_object_reference(dst_object);
 
 
                        vm_object_reference(dst_object);
 

-                       version.main_timestamp = dst_map->timestamp;
+                       /* account for unlock bumping up timestamp */
+                       version.main_timestamp = dst_map->timestamp + 1;

 
                        vm_map_unlock(dst_map);
 
 
                        vm_map_unlock(dst_map);
 


@@ -4719,7 +4735,7 @@ vm_map_copy_overwrite_aligned(
 
                        start += copy_size;
                        vm_map_lock(dst_map);
 
                        start += copy_size;
                        vm_map_lock(dst_map);

-                       if ((version.main_timestamp + 1) == dst_map->timestamp) {
+                       if (version.main_timestamp == dst_map->timestamp) {

                                /* We can safely use saved tmp_entry value */
 
                                vm_map_clip_end(dst_map, tmp_entry, start);
                                /* We can safely use saved tmp_entry value */
 
                                vm_map_clip_end(dst_map, tmp_entry, start);


@@ -5128,8 +5144,8 @@ vm_map_copyout(
                        m->busy = TRUE;
                        vm_object_unlock(object);
 
                        m->busy = TRUE;
                        vm_object_unlock(object);
 

-                       PMAP_ENTER(dst_map->pmap, va, m,
-                                  entry->protection, TRUE);
+                       PMAP_ENTER(dst_map->pmap, va, m, entry->protection, 
+                                               VM_WIMG_USE_DEFAULT, TRUE);

 
                        vm_object_lock(object);
                        PAGE_WAKEUP_DONE(m);
 
                        vm_object_lock(object);
                        PAGE_WAKEUP_DONE(m);


@@ -5178,7 +5194,9 @@ vm_map_copyout(
                                                        prot &= ~VM_PROT_WRITE;
 
                                                PMAP_ENTER(dst_map->pmap, va, 
                                                        prot &= ~VM_PROT_WRITE;
 
                                                PMAP_ENTER(dst_map->pmap, va, 

-                                                          m, prot, FALSE);
+                                                       m, prot, 
+                                                       VM_WIMG_USE_DEFAULT, 
+                                                       FALSE);

 
                                                vm_object_lock(object);
                                                vm_page_lock_queues();
 
                                                vm_object_lock(object);
                                                vm_page_lock_queues();


@@ -5350,6 +5368,8 @@ vm_map_copyin_common(
 #define        RETURN(x)                                               \
        MACRO_BEGIN                                             \
        vm_map_unlock(src_map);                                 \
 #define        RETURN(x)                                               \
        MACRO_BEGIN                                             \
        vm_map_unlock(src_map);                                 \

+       if(src_map != base_map)                                 \
+               vm_map_deallocate(src_map);                     \

        if (new_entry != VM_MAP_ENTRY_NULL)                     \
                vm_map_copy_entry_dispose(copy,new_entry);      \
        vm_map_copy_discard(copy);                              \
        if (new_entry != VM_MAP_ENTRY_NULL)                     \
                vm_map_copy_entry_dispose(copy,new_entry);      \
        vm_map_copy_discard(copy);                              \


@@ -5358,6 +5378,8 @@ vm_map_copyin_common(
                                                                \
                for(ptr = parent_maps; ptr != NULL; ptr = parent_maps) { \
                        parent_maps=parent_maps->next;          \
                                                                \
                for(ptr = parent_maps; ptr != NULL; ptr = parent_maps) { \
                        parent_maps=parent_maps->next;          \

+                       if (ptr->parent_map != base_map)        \
+                               vm_map_deallocate(ptr->parent_map);     \

                        kfree((vm_offset_t)ptr, sizeof(submap_map_t));  \
                }                                               \
        }                                                       \
                        kfree((vm_offset_t)ptr, sizeof(submap_map_t));  \
                }                                               \
        }                                                       \


@@ -5428,6 +5450,9 @@ vm_map_copyin_common(
                        src_end = src_start + submap_len;
                        src_map = tmp_entry->object.sub_map;
                        vm_map_lock(src_map);
                        src_end = src_start + submap_len;
                        src_map = tmp_entry->object.sub_map;
                        vm_map_lock(src_map);

+                       /* keep an outstanding reference for all maps in */
+                       /* the parents tree except the base map */
+                       vm_map_reference(src_map);

                        vm_map_unlock(ptr->parent_map);
                        if (!vm_map_lookup_entry(
                                        src_map, src_start, &tmp_entry))
                        vm_map_unlock(ptr->parent_map);
                        if (!vm_map_lookup_entry(
                                        src_map, src_start, &tmp_entry))


@@ -5438,7 +5463,8 @@ vm_map_copyin_common(
                        src_entry = tmp_entry;
                }
                if ((tmp_entry->object.vm_object != VM_OBJECT_NULL) && 
                        src_entry = tmp_entry;
                }
                if ((tmp_entry->object.vm_object != VM_OBJECT_NULL) && 

-                   (tmp_entry->object.vm_object->phys_contiguous)) {
+                   ((tmp_entry->object.vm_object->wimg_bits != VM_WIMG_DEFAULT) ||
+                   (tmp_entry->object.vm_object->phys_contiguous))) {

                        /* This is not, cannot be supported for now */
                        /* we need a description of the caching mode */
                        /* reflected in the object before we can     */
                        /* This is not, cannot be supported for now */
                        /* we need a description of the caching mode */
                        /* reflected in the object before we can     */


@@ -5607,7 +5633,7 @@ RestartCopy:
                 */
 
                version.main_timestamp = src_map->timestamp;
                 */
 
                version.main_timestamp = src_map->timestamp;

-               vm_map_unlock(src_map);
+               vm_map_unlock(src_map); /* Increments timestamp once! */

 
                /*
                 *      Perform the copy
 
                /*
                 *      Perform the copy


@@ -5652,7 +5678,7 @@ RestartCopy:
                 *      changed while the copy was being made.
                 */
 
                 *      changed while the copy was being made.
                 */
 

-               vm_map_lock(src_map);   /* Increments timestamp once! */
+               vm_map_lock(src_map);

 
                if ((version.main_timestamp + 1) == src_map->timestamp)
                        goto VerificationSuccessful;
 
                if ((version.main_timestamp + 1) == src_map->timestamp)
                        goto VerificationSuccessful;


@@ -5735,8 +5761,9 @@ RestartCopy:
                                ptr = parent_maps;
                                assert(ptr != NULL);
                                parent_maps = parent_maps->next;
                                ptr = parent_maps;
                                assert(ptr != NULL);
                                parent_maps = parent_maps->next;

-                               vm_map_lock(ptr->parent_map);

                                vm_map_unlock(src_map);
                                vm_map_unlock(src_map);

+                               vm_map_deallocate(src_map);
+                               vm_map_lock(ptr->parent_map);

                                src_map = ptr->parent_map;
                                src_start = ptr->base_start;
                                src_end = ptr->base_end;
                                src_map = ptr->parent_map;
                                src_start = ptr->base_start;
                                src_end = ptr->base_end;


@@ -5977,16 +6004,19 @@ vm_map_fork_share(
                 *      to remove write permission.
                 */
 
                 *      to remove write permission.
                 */
 

-/* CDY FIX this! page_protect! */

                if (!old_entry->needs_copy &&
                    (old_entry->protection & VM_PROT_WRITE)) {
                if (!old_entry->needs_copy &&
                    (old_entry->protection & VM_PROT_WRITE)) {

-                       if(old_entry->is_sub_map && old_entry->use_pmap) {
-                               pmap_protect(old_entry->object.sub_map->pmap,
-                                    old_entry->vme_start,
-                                    old_entry->vme_end,
-                                    old_entry->protection & ~VM_PROT_WRITE);
+                       if(old_map->mapped) {
+                               vm_object_pmap_protect(
+                                       old_entry->object.vm_object,
+                                       old_entry->offset,
+                                       (old_entry->vme_end -
+                                                       old_entry->vme_start),
+                                       PMAP_NULL,
+                                       old_entry->vme_start,
+                                       old_entry->protection & ~VM_PROT_WRITE);

                        } else {
                        } else {

-                               pmap_protect(vm_map_pmap(old_map),
+                               pmap_protect(old_map->pmap,

                                     old_entry->vme_start,
                                     old_entry->vme_end,
                                     old_entry->protection & ~VM_PROT_WRITE);
                                     old_entry->vme_start,
                                     old_entry->vme_end,
                                     old_entry->protection & ~VM_PROT_WRITE);


@@ -6174,7 +6204,9 @@ vm_map_fork(
 
                        if(old_entry->is_sub_map)
                                break;
 
                        if(old_entry->is_sub_map)
                                break;

-                       if (old_entry->wired_count != 0) {
+                       if ((old_entry->wired_count != 0) ||
+                               ((old_entry->object.vm_object != NULL) &&
+                               (old_entry->object.vm_object->true_share))) {

                                goto slow_vm_map_fork_copy;
                        }
 
                                goto slow_vm_map_fork_copy;
                        }
 


@@ -6205,7 +6237,7 @@ vm_map_fork(
                                        (old_entry->vme_end -
                                                        old_entry->vme_start),
                                        ((old_entry->is_shared 
                                        (old_entry->vme_end -
                                                        old_entry->vme_start),
                                        ((old_entry->is_shared 

-                                               || old_entry->is_sub_map)
+                                               || old_map->mapped)

                                                        ? PMAP_NULL :
                                                        old_map->pmap),
                                        old_entry->vme_start,
                                                        ? PMAP_NULL :
                                                        old_map->pmap),
                                        old_entry->vme_start,


@@ -6489,7 +6521,8 @@ RetrySubMap:
                                        submap_entry->offset,
                                        submap_entry->vme_end - 
                                                submap_entry->vme_start,
                                        submap_entry->offset,
                                        submap_entry->vme_end - 
                                                submap_entry->vme_start,

-                                       submap_entry->is_shared ?
+                                       (submap_entry->is_shared 
+                                               || map->mapped) ?

                                                PMAP_NULL : map->pmap,
                                        submap_entry->vme_start,
                                        submap_entry->protection &
                                                PMAP_NULL : map->pmap,
                                        submap_entry->vme_start,
                                        submap_entry->protection &


@@ -7428,15 +7461,13 @@ vm_region_top_walk(
         register struct vm_object *obj, *tmp_obj;
        register int    ref_count;
 
         register struct vm_object *obj, *tmp_obj;
        register int    ref_count;
 

-       if (entry->object.vm_object == 0) {
+       if (entry->object.vm_object == 0 || entry->is_sub_map) {

            top->share_mode = SM_EMPTY;
            top->ref_count = 0;
            top->obj_id = 0;
            return;
        }
            top->share_mode = SM_EMPTY;
            top->ref_count = 0;
            top->obj_id = 0;
            return;
        }

-        if (entry->is_sub_map)
-           vm_region_top_walk((vm_map_entry_t)entry->object.sub_map, top);
-       else {
+       {

            obj = entry->object.vm_object;
 
            vm_object_lock(obj);
            obj = entry->object.vm_object;
 
            vm_object_lock(obj);


@@ -7500,16 +7531,14 @@ vm_region_walk(
        register int               ref_count;
        void vm_region_look_for_page();
 
        register int               ref_count;
        void vm_region_look_for_page();
 

-       if ((entry->object.vm_object == 0) || 
+       if ((entry->object.vm_object == 0) ||
+               (entry->is_sub_map) ||

                (entry->object.vm_object->phys_contiguous)) {
            extended->share_mode = SM_EMPTY;
            extended->ref_count = 0;
            return;
        }
                (entry->object.vm_object->phys_contiguous)) {
            extended->share_mode = SM_EMPTY;
            extended->ref_count = 0;
            return;
        }

-        if (entry->is_sub_map)
-           vm_region_walk((vm_map_entry_t)entry->object.sub_map, extended, offset + entry->offset,
-                          range, map, va);
-       else {
+       {

            obj = entry->object.vm_object;
 
            vm_object_lock(obj);
            obj = entry->object.vm_object;
 
            vm_object_lock(obj);


@@ -7804,14 +7833,96 @@ vm_map_machine_attribute(
        vm_machine_attribute_val_t* value)              /* IN/OUT */
 {
        kern_return_t   ret;
        vm_machine_attribute_val_t* value)              /* IN/OUT */
 {
        kern_return_t   ret;

-
+       vm_size_t sync_size;
+       vm_offset_t     start;
+       vm_map_entry_t entry;
+       

        if (address < vm_map_min(map) ||
            (address + size) > vm_map_max(map))
                return KERN_INVALID_ADDRESS;
 
        vm_map_lock(map);
        if (address < vm_map_min(map) ||
            (address + size) > vm_map_max(map))
                return KERN_INVALID_ADDRESS;
 
        vm_map_lock(map);

+       
+       if (attribute != MATTR_CACHE) { 
+               /* If we don't have to find physical addresses, we */
+               /* don't have to do an explicit traversal here.    */
+               ret = pmap_attribute(map->pmap, 
+                               address, size, attribute, value);
+               vm_map_unlock(map);
+               return ret;
+       }
+
+       /* Get the starting address */
+       start = trunc_page(address);
+       /* Figure how much memory we need to flush (in page increments) */
+       sync_size = round_page(start + size) - start;   

 
 

-       ret = pmap_attribute(map->pmap, address, size, attribute, value);
+
+       ret = KERN_SUCCESS;                                                                             /* Assume it all worked */
+
+       while(sync_size) {
+               if (vm_map_lookup_entry(map, start, &entry)) {
+                       vm_size_t       sub_size;
+                       if((entry->vme_end - start) > sync_size) {
+                               sub_size = sync_size;
+                               sync_size = 0;
+                       } else {
+                               sub_size = entry->vme_end - start;
+                                       sync_size -= sub_size;
+                       }
+                       if(entry->is_sub_map) {
+                               vm_map_machine_attribute(
+                                       entry->object.sub_map, 
+                                       (start - entry->vme_start) 
+                                                       + entry->offset,
+                                       sub_size,
+                                       attribute, value);
+                       } else {
+                               if(entry->object.vm_object) {
+                                       vm_page_t               m;
+                                       vm_object_t             object;
+                                       vm_object_t             base_object;
+                                       vm_object_offset_t      offset;
+                                       vm_object_offset_t      base_offset;
+                                       vm_size_t               range;
+                                       range = sub_size;
+                                       offset = (start - entry->vme_start)
+                                                       + entry->offset;
+                                       base_offset = offset;
+                                       object = entry->object.vm_object;
+                                       base_object = object;
+                                       while(range) {
+                                               m = vm_page_lookup(
+                                                       object, offset);
+                                               if(m && !m->fictitious) {
+       
+                                                 ret = 
+                                                    pmap_attribute_cache_sync(
+                                                       m->phys_addr, 
+                                                       PAGE_SIZE, 
+                                                       attribute, value);
+                                               } else if (object->shadow) {
+                                                  offset = offset + 
+                                                       object->shadow_offset;
+                                                  object = object->shadow;
+                                                  continue;
+                                               }
+                                               range -= PAGE_SIZE;
+                                               /* Bump to the next page */
+                                               base_offset += PAGE_SIZE;
+                                               offset = base_offset;
+                                               object = base_object;
+                                               
+                                       }
+                               }
+                       }
+                       start += sub_size;
+               } else {
+                       vm_map_unlock(map);
+                       return KERN_FAILURE;
+               }
+               
+       }

 
        vm_map_unlock(map);
 
 
        vm_map_unlock(map);
 


@@ -7846,6 +7957,10 @@ vm_map_behavior_set(
        case VM_BEHAVIOR_SEQUENTIAL:
        case VM_BEHAVIOR_RSEQNTL:
                break;
        case VM_BEHAVIOR_SEQUENTIAL:
        case VM_BEHAVIOR_RSEQNTL:
                break;

+       case VM_BEHAVIOR_WILLNEED:
+       case VM_BEHAVIOR_DONTNEED:
+               new_behavior = VM_BEHAVIOR_DEFAULT;
+               break;

        default:
                return(KERN_INVALID_ARGUMENT);
        }
        default:
                return(KERN_INVALID_ARGUMENT);
        }


@@ -8348,11 +8463,22 @@ vm_remap_extract(
 
                                if (!src_entry->needs_copy &&
                                    (src_entry->protection & VM_PROT_WRITE)) {
 
                                if (!src_entry->needs_copy &&
                                    (src_entry->protection & VM_PROT_WRITE)) {

-                                       pmap_protect(vm_map_pmap(map),
-                                            src_entry->vme_start,
-                                            src_entry->vme_end,
-                                            src_entry->protection &
+                                       if(map->mapped) {
+                                          vm_object_pmap_protect(
+                                               src_entry->object.vm_object,
+                                               src_entry->offset,
+                                               entry_size,
+                                               PMAP_NULL,
+                                               src_entry->vme_start,
+                                               src_entry->protection &
+                                                      ~VM_PROT_WRITE);
+                                       } else {
+                                          pmap_protect(vm_map_pmap(map),
+                                                src_entry->vme_start,
+                                               src_entry->vme_end,
+                                               src_entry->protection &

                                                     ~VM_PROT_WRITE);
                                                     ~VM_PROT_WRITE);

+                                       }

                                }
 
                                object = src_entry->object.vm_object;
                                }
 
                                object = src_entry->object.vm_object;


@@ -8413,7 +8539,8 @@ vm_remap_extract(
                                vm_object_pmap_protect(object,
                                                       offset,
                                                       entry_size,
                                vm_object_pmap_protect(object,
                                                       offset,
                                                       entry_size,

-                                                      (src_entry->is_shared ?
+                                                      ((src_entry->is_shared 
+                                                         || map->mapped) ?

                                                        PMAP_NULL : map->pmap),
                                                       src_entry->vme_start,
                                                       src_entry->protection &
                                                        PMAP_NULL : map->pmap),
                                                       src_entry->vme_start,
                                                       src_entry->protection &


@@ -8437,7 +8564,7 @@ vm_remap_extract(
                         * verification, and unlock the map.
                         */
                        version.main_timestamp = map->timestamp;
                         * verification, and unlock the map.
                         */
                        version.main_timestamp = map->timestamp;

-                       vm_map_unlock(map);
+                       vm_map_unlock(map);     /* Increments timestamp once! */

 
                        /*
                         * Perform the copy.
 
                        /*
                         * Perform the copy.


@@ -8481,7 +8608,7 @@ vm_remap_extract(
                         * changed while the copy was being made.
                         */
 
                         * changed while the copy was being made.
                         */
 

-                       vm_map_lock(map);       /* Increments timestamp once! */
+                       vm_map_lock(map);

                        if (version.main_timestamp + 1 != map->timestamp) {
                                /*
                                 * Simple version comparison failed.
                        if (version.main_timestamp + 1 != map->timestamp) {
                                /*
                                 * Simple version comparison failed.


@@ -9053,3 +9180,77 @@ boolean_t vm_map_check_protection(map, start, end, protection)
        vm_map_unlock(map);
        return(TRUE);
 }
        vm_map_unlock(map);
        return(TRUE);
 }

+
+/*
+ *      This routine is obsolete, but included for backward
+ *      compatibility for older drivers.
+ */
+void
+kernel_vm_map_reference(
+       vm_map_t map)
+{
+       vm_map_reference(map);
+}
+
+/*
+ *     vm_map_reference:
+ *
+ *     Most code internal to the osfmk will go through a
+ *     macro defining this.  This is always here for the
+ *     use of other kernel components.
+ */
+#undef vm_map_reference
+void
+vm_map_reference(
+       register vm_map_t       map)
+{
+       if (map == VM_MAP_NULL)
+               return;
+
+       mutex_lock(&map->s_lock);
+#if    TASK_SWAPPER
+       assert(map->res_count > 0);
+       assert(map->ref_count >= map->res_count);
+       map->res_count++;
+#endif
+       map->ref_count++;
+       mutex_unlock(&map->s_lock);
+}
+
+/*
+ *     vm_map_deallocate:
+ *
+ *     Removes a reference from the specified map,
+ *     destroying it if no references remain.
+ *     The map should not be locked.
+ */
+void
+vm_map_deallocate(
+       register vm_map_t       map)
+{
+       unsigned int            ref;
+
+       if (map == VM_MAP_NULL)
+               return;
+
+       mutex_lock(&map->s_lock);
+       ref = --map->ref_count;
+       if (ref > 0) {
+               vm_map_res_deallocate(map);
+               mutex_unlock(&map->s_lock);
+               return;
+       }
+       assert(map->ref_count == 0);
+       mutex_unlock(&map->s_lock);
+
+#if    TASK_SWAPPER
+       /*
+        * The map residence count isn't decremented here because
+        * the vm_map_delete below will traverse the entire map, 
+        * deleting entries, and the residence counts on objects
+        * and sharing maps will go away then.
+        */
+#endif
+
+       vm_map_destroy(map);
+}