xnu-6153.11.26.tar.gz

[apple/xnu.git] / osfmk / atm / atm_internal.h

diff --git a/osfmk/atm/atm_internal.h b/osfmk/atm/atm_internal.h
index 6fbc32b657a6ccaa69be11ee4ae25796247ab02c..a8a4aace6414f511a82ab3f13c58a69175943221 100644 (file)
--- a/osfmk/atm/atm_internal.h
+++ b/osfmk/atm/atm_internal.h
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2012-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2012-2019 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

- * 
+ *

  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in


@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.

- * 
+ *

  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,


@@ -22,7 +22,7 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.

- * 
+ *

  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 


@@ -32,8 +32,9 @@
 #include <stdint.h>
 #include <mach/mach_types.h>
 #include <atm/atm_types.h>
 #include <stdint.h>
 #include <mach/mach_types.h>
 #include <atm/atm_types.h>

+#include <os/refcnt.h>

 
 

-#ifdef MACH_KERNEL_PRIVATE
+#ifdef  MACH_KERNEL_PRIVATE

 
 #include <kern/thread.h>
 #include <kern/locks.h>
 
 #include <kern/thread.h>
 #include <kern/locks.h>


@@ -49,16 +50,14 @@
 typedef mach_voucher_attr_value_handle_t atm_voucher_id_t;
 
 struct atm_task_descriptor {
 typedef mach_voucher_attr_value_handle_t atm_voucher_id_t;
 
 struct atm_task_descriptor {

-       decl_lck_mtx_data(,lock)             /* lock to protect reference count */
-       mach_port_t     trace_buffer;            /* named memory entry registered by user */
-       uint64_t        trace_buffer_size;   /* size of the trace_buffer registered */
-       uint64_t        mailbox_array_size;      /* Mailbox array size in bytes. */
-       void *          mailbox_kernel_addr; /* Kernel address where the mailbox is mapped. */
-       uint32_t        reference_count:31,
-                       flags:1;
+       decl_lck_mtx_data(, lock);                /* lock to protect reference count */
+       mach_port_t     trace_buffer;           /* named memory entry registered by user */
+       uint64_t        trace_buffer_size;      /* size of the trace_buffer registered */
+       os_refcnt_t     reference_count;
+       uint8_t         flags;

 #if DEVELOPMENT || DEBUG
 #if DEVELOPMENT || DEBUG

-       task_t          task;           /* task pointer for debugging purposes */
-       queue_chain_t   descriptor_elt; /* global chain of all descriptors */
+       task_t          task;                   /* task pointer for debugging purposes */
+       queue_chain_t   descriptor_elt;         /* global chain of all descriptors */

 #endif
 };
 
 #endif
 };
 


@@ -66,18 +65,28 @@ typedef struct atm_task_descriptor *atm_task_descriptor_t;
 #define ATM_TASK_DESCRIPTOR_NULL NULL
 
 struct atm_value {
 #define ATM_TASK_DESCRIPTOR_NULL NULL
 
 struct atm_value {

-       aid_t            aid;                   /* activity id */
-       queue_head_t     listeners;             /* List of listeners who register for this activity */
-       decl_lck_mtx_data( ,listener_lock)      /* Lock to protect listener list */
-       queue_chain_t    vid_hash_elt;          /* Next hash element in the global hash table */
+       aid_t            aid;                   /* activity id */
+       queue_head_t     listeners;             /* List of listeners who register for this activity */
+       decl_lck_mtx_data(, listener_lock);      /* Lock to protect listener list */
+       queue_chain_t    vid_hash_elt;          /* Next hash element in the global hash table */

 #if DEVELOPMENT || DEBUG
 #if DEVELOPMENT || DEBUG

-       queue_chain_t    value_elt;             /* global chain of all values */
+       queue_chain_t    value_elt;             /* global chain of all values */

 #endif
 #endif

-       uint32_t         sync;                  /* Made ref count given to voucher sub system. */
-       uint32_t         listener_count;        /* Number of Listerners listening on the value. */
-       int32_t          reference_count;       /* use count on the atm value, 1 taken by the global hash table */      
+       uint32_t         sync;                  /* Made ref count given to voucher sub system. */
+
+       uint32_t         listener_count;
+       os_refcnt_t      reference_count;               /* use count on the atm value, 1 taken by the global hash table */

 };
 
 };
 

+#define atm_listener_count_incr_internal(elem)  \
+       (os_atomic_inc(&(elem)->listener_count, relaxed))
+
+#define atm_listener_count_decr_internal(elem)  \
+       (os_atomic_dec(&(elem)->listener_count, relaxed))
+
+#define atm_sync_reference_internal(elem)       \
+       (os_atomic_inc(&(elem)->sync, relaxed))
+

 typedef struct atm_value *atm_value_t;
 #define ATM_VALUE_NULL NULL
 
 typedef struct atm_value *atm_value_t;
 #define ATM_VALUE_NULL NULL
 


@@ -86,32 +95,28 @@ typedef struct atm_value *atm_value_t;
 
 struct atm_link_object {
        atm_task_descriptor_t  descriptor;
 
 struct atm_link_object {
        atm_task_descriptor_t  descriptor;

-       void *                 mailbox;              /* Offset in the mailbox registered by the user for an activity. */
-       uint32_t                reference_count;     /* Refernece count for link object */
-       uint8_t                flags;                /* Flags used mark for deletion from the listener list */
-       queue_chain_t          listeners_element;    /* Head is atm_value->listeners. */
+       queue_chain_t          listeners_element;    /* Head is atm_value->listeners. */
+       atm_guard_t            guard;                /* Guard registered by the user for an activity. */
+       os_refcnt_t            reference_count;

 };
 
 typedef struct atm_link_object *atm_link_object_t;
 
 };
 
 typedef struct atm_link_object *atm_link_object_t;
 

-#define atm_link_object_reference_internal(elem)       \
-       (hw_atomic_add(&(elem)->reference_count, 1))
-
-#define atm_link_object_release_internal(elem) \
-       (hw_atomic_sub(&(elem)->reference_count, 1))
-

 struct atm_value_hash {
 struct atm_value_hash {

-       queue_head_t    hash_list;
-       decl_lck_mtx_data(, hash_list_lock)     /* lock to protect bucket list. */
+       queue_head_t    hash_list;
+       decl_lck_mtx_data(, hash_list_lock);    /* lock to protect bucket list. */

 };
 
 typedef struct atm_value_hash *atm_value_hash_t;
 
 void atm_init(void);
 void atm_task_descriptor_destroy(atm_task_descriptor_t task_descriptor);
 };
 
 typedef struct atm_value_hash *atm_value_hash_t;
 
 void atm_init(void);
 void atm_task_descriptor_destroy(atm_task_descriptor_t task_descriptor);

-kern_return_t atm_register_trace_memory(task_t task, uint64_t trace_buffer_address, uint64_t buffer_size, uint64_t mailbox_array_size);
+kern_return_t atm_register_trace_memory(task_t  task, uint64_t trace_buffer_address, uint64_t buffer_size);

 kern_return_t atm_send_proc_inspect_notification(task_t task, int32_t traced_pid, uint64_t traced_uniqueid);
 
 #endif /* MACH_KERNEL_PRIVATE */
 
 kern_return_t atm_send_proc_inspect_notification(task_t task, int32_t traced_pid, uint64_t traced_uniqueid);
 
 #endif /* MACH_KERNEL_PRIVATE */
 

+kern_return_t atm_set_diagnostic_config(uint32_t);
+uint32_t atm_get_diagnostic_config(void);
+

 #endif /* _ATM_ATM_INTERNAL_H_ */
 #endif /* _ATM_ATM_INTERNAL_H_ */