xnu-7195.50.7.100.1.tar.gz

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

diff --git a/osfmk/kern/simple_lock.h b/osfmk/kern/simple_lock.h
index d791567b0004072aa31198312bc6c6c6ddd34467..67eb289710c36affc25428e2280db82acc44af88 100644 (file)
--- a/osfmk/kern/simple_lock.h
+++ b/osfmk/kern/simple_lock.h
@@ -76,7 +76,7 @@
 #include <kern/lock_group.h>
 #include <machine/simple_lock.h>
 
-#ifdef  MACH_KERNEL_PRIVATE
+#ifdef MACH_KERNEL_PRIVATE
 #include <machine/atomic.h>
 #include <mach_ldebug.h>
 
@@ -142,8 +142,32 @@ extern void                     hw_lock_unlock_nopreempt(
 extern unsigned int             hw_lock_held(
        hw_lock_t);
 
-extern boolean_t hw_atomic_test_and_set32(uint32_t *target, uint32_t test_mask, uint32_t set_mask, enum memory_order ord, boolean_t wait);
-#endif  /* MACH_KERNEL_PRIVATE */
+extern boolean_t                hw_atomic_test_and_set32(
+       uint32_t *target,
+       uint32_t test_mask,
+       uint32_t set_mask,
+       enum memory_order ord,
+       boolean_t wait);
+
+#endif /* MACH_KERNEL_PRIVATE */
+#if XNU_KERNEL_PRIVATE
+
+struct usimple_lock_startup_spec {
+       usimple_lock_t  lck;
+       unsigned short  lck_init_arg;
+};
+
+extern void                     usimple_lock_startup_init(
+       struct usimple_lock_startup_spec *spec);
+
+#define SIMPLE_LOCK_DECLARE(var, arg) \
+       decl_simple_lock_data(, var); \
+       static __startup_data struct usimple_lock_startup_spec \
+       __startup_usimple_lock_spec_ ## var = { &var, arg }; \
+       STARTUP_ARG(LOCKS_EARLY, STARTUP_RANK_FOURTH, usimple_lock_startup_init, \
+           &__startup_usimple_lock_spec_ ## var)
+
+#endif /* XNU_KERNEL_PRIVATE */
 
 __BEGIN_DECLS