xnu-1699.22.73.tar.gz

[apple/xnu.git] / osfmk / kern / locks.h

diff --git a/osfmk/kern/locks.h b/osfmk/kern/locks.h
index b936f226aebc2b7c020a8615929bd5f2a8297dad..659336194cd76b8cac6ade2ac905186919280ee2 100644 (file)
--- a/osfmk/kern/locks.h
+++ b/osfmk/kern/locks.h
@@ -57,8 +57,9 @@ typedef       unsigned int            lck_sleep_action_t;
 #define        LCK_SLEEP_UNLOCK        0x01    /* Release the lock and return unheld */
 #define        LCK_SLEEP_SHARED        0x02    /* Reclaim the lock in shared mode (RW only) */
 #define        LCK_SLEEP_EXCLUSIVE     0x04    /* Reclaim the lock in exclusive mode (RW only) */
+#define        LCK_SLEEP_SPIN          0x08    /* Reclaim the lock in spin mode (mutex only) */
 
-#define        LCK_SLEEP_MASK          0x07    /* Valid actions */
+#define        LCK_SLEEP_MASK          0x0f    /* Valid actions */
 
 #ifdef MACH_KERNEL_PRIVATE
 
@@ -104,11 +105,11 @@ typedef   struct _lck_grp_stat_ {
 
 typedef        struct _lck_grp_ {
        queue_chain_t           lck_grp_link;
-       unsigned int            lck_grp_refcnt;
-       unsigned int            lck_grp_spincnt;
-       unsigned int            lck_grp_mtxcnt;
-       unsigned int            lck_grp_rwcnt;
-       unsigned int            lck_grp_attr;
+       uint32_t                lck_grp_refcnt;
+       uint32_t                lck_grp_spincnt;
+       uint32_t                lck_grp_mtxcnt;
+       uint32_t                lck_grp_rwcnt;
+       uint32_t                lck_grp_attr;
        char                    lck_grp_name[LCK_GRP_MAX_NAME];
        lck_grp_stat_t          lck_grp_stat;
 } lck_grp_t;
@@ -121,7 +122,7 @@ typedef struct __lck_grp__ lck_grp_t;
 
 #ifdef MACH_KERNEL_PRIVATE
 typedef        struct _lck_grp_attr_ {
-       unsigned int    grp_attr_val;
+       uint32_t        grp_attr_val;
 } lck_grp_attr_t;
 
 extern lck_grp_attr_t  LockDefaultGroupAttr;
@@ -265,6 +266,10 @@ extern wait_result_t       lck_spin_sleep_deadline(
 extern boolean_t               lck_spin_try_lock(
                                                                        lck_spin_t              *lck);
 
+struct _lck_mtx_ext_;
+extern void lck_mtx_init_ext(lck_mtx_t *lck, struct _lck_mtx_ext_ *lck_ext,
+    lck_grp_t *grp, lck_attr_t *attr);
+
 #endif
 
 
@@ -278,12 +283,15 @@ extern void                               lck_mtx_init(
                                                                        lck_mtx_t               *lck, 
                                                                        lck_grp_t               *grp,
                                                                        lck_attr_t              *attr);
-
 extern void                            lck_mtx_lock(
                                                                        lck_mtx_t               *lck);
 
+#if    defined(__i386__)
+extern void    lck_mtx_unlock(lck_mtx_t                *lck) __DARWIN10_ALIAS(lck_mtx_unlock);
+#else
 extern void                            lck_mtx_unlock(
                                                                        lck_mtx_t               *lck);
+#endif /* __i386__ */
 
 extern void                            lck_mtx_destroy(
                                                                        lck_mtx_t               *lck,
@@ -311,18 +319,31 @@ extern wait_result_t      lck_mtx_sleep_deadline(
 extern boolean_t               lck_mtx_try_lock(
                                                                        lck_mtx_t               *lck);
 
-#ifdef i386
+extern void                            mutex_pause(uint32_t);
+
+extern void                    lck_mtx_yield (
+                                                                       lck_mtx_t               *lck);
+
+#if defined(__i386__) || defined(__x86_64__)
 extern boolean_t               lck_mtx_try_lock_spin(
                                                                        lck_mtx_t               *lck);
 
+extern void                    lck_mtx_lock_spin_always(
+                                                                       lck_mtx_t               *lck);
+
 extern void                    lck_mtx_lock_spin(
                                                                        lck_mtx_t               *lck);
 
 extern void                    lck_mtx_convert_spin(
                                                                        lck_mtx_t               *lck);
+
+#define lck_mtx_unlock_always(l)       lck_mtx_unlock(l)
+
 #else
 #define lck_mtx_try_lock_spin(l)       lck_mtx_try_lock(l)
 #define        lck_mtx_lock_spin(l)            lck_mtx_lock(l)
+#define lck_mtx_lock_spin_always(l)    lck_spin_lock(l)
+#define lck_mtx_unlock_always(l)       lck_spin_unlock(l)
 #define        lck_mtx_convert_spin(l)         do {} while (0)
 #endif
 
@@ -354,9 +375,6 @@ extern void                         lck_mtx_unlockspin_wakeup(
 extern boolean_t               lck_mtx_ilk_unlock(
                                                                        lck_mtx_t               *lck);
 
-struct _lck_mtx_ext_;
-extern void lck_mtx_init_ext(lck_mtx_t *lck, struct _lck_mtx_ext_ *lck_ext,
-    lck_grp_t *grp, lck_attr_t *attr);
 #endif
 
 #define decl_lck_rw_data(class,name)     class lck_rw_t name;