xnu-4570.41.2.tar.gz

[apple/xnu.git] / bsd / sys / systm.h

diff --git a/bsd/sys/systm.h b/bsd/sys/systm.h
index f08bc477cda279b302a4765fb59fe9b58f313197..fb2badf23d469ebe02fc901c7a4e671e2238a85e 100644 (file)
--- a/bsd/sys/systm.h
+++ b/bsd/sys/systm.h
@@ -123,9 +123,13 @@ extern const char copyright[];             /* system copyright */
 
 extern int     boothowto;      /* reboot flags, from console subsystem */
 extern int     show_space;
+extern int     minimalboot;
+#if CONFIG_EMBEDDED
+extern int     darkboot;
+#endif
 
-extern int nblkdev;            /* number of entries in bdevsw */
-extern int nchrdev;            /* number of entries in cdevsw */
+extern const int nblkdev; /* number of entries in bdevsw */
+extern const int nchrdev; /* number of entries in cdevsw */
 #endif /* BSD_KERNEL_PRIVATE */
 
 #ifdef KERNEL_PRIVATE
@@ -134,12 +138,6 @@ extern int securelevel;            /* system security level */
 extern dev_t rootdev;          /* root device */
 extern struct vnode *rootvp;   /* vnode equivalent to above */
 
-#ifdef XNU_KERNEL_PRIVATE
-#define NO_FUNNEL 0
-#define KERNEL_FUNNEL 1
-extern funnel_t * kernel_flock;
-#endif /* XNU_KERNEL_PRIVATE */
-
 #endif /* KERNEL_PRIVATE */
 
 #define SYSINIT(a,b,c,d,e)
@@ -162,15 +160,13 @@ void      realitexpire(struct proc *);
 int    hzto(struct timeval *tv);
 void   tablefull(const char *);
 int    kvprintf(char const *, void (*)(int, void*), void *, int,
-                     __darwin_va_list);
+                     __darwin_va_list) __printflike(1,0);
 void   uprintf(const char *, ...) __printflike(1,2);
 int    copywithin(void *saddr, void *daddr, size_t len);
 int64_t        fulong(user_addr_t addr);
 int    sulong(user_addr_t addr, int64_t longword);
 uint64_t fuulong(user_addr_t addr);
 int    suulong(user_addr_t addr, uint64_t ulongword);
-int    vslock(user_addr_t addr, user_size_t len);
-int    vsunlock(user_addr_t addr, user_size_t len, int dirtied);
 int    clone_system_shared_regions(int shared_regions_active,
                                    int chain_regions,
                                    int base_vnode);
@@ -185,15 +181,18 @@ struct time_value;
 void   get_procrustime(struct time_value *tv);
 void   load_init_program(struct proc *p);
 void __pthread_testcancel(int presyscall);
-void syscall_exit_funnelcheck(void);
 void throttle_info_get_last_io_time(mount_t mp, struct timeval *tv);
 void update_last_io_time(mount_t mp);
+void throttle_info_end_io(buf_t bp);
 #endif /* BSD_KERNEL_PRIVATE */
 
 #ifdef KERNEL_PRIVATE
 void   timeout(void (*)(void *), void *arg, int ticks);
+void   timeout_with_leeway(void (*)(void *), void *arg, int ticks, int leeway_ticks);
 void   untimeout(void (*)(void *), void *arg);
 int    bsd_hostname(char *, int, int*);
+int    vslock(user_addr_t addr, user_size_t len);
+int    vsunlock(user_addr_t addr, user_size_t len, int dirtied);
 #endif /* KERNEL_PRIVATE */
 
 int    nullop(void);
@@ -222,6 +221,7 @@ void        bsd_timeout(void (*)(void *), void *arg, struct timespec * ts);
 void   bsd_untimeout(void (*)(void *), void *arg);
 void   set_fsblocksize(struct vnode *);
 uint64_t tvtoabstime(struct timeval *);
+uint64_t tstoabstime(struct timespec *);
 void   *throttle_info_create(void);
 void   throttle_info_mount_ref(mount_t mp, void * throttle_info);
 void   throttle_info_mount_rel(mount_t mp);
@@ -229,11 +229,45 @@ void      throttle_info_release(void *throttle_info);
 void   throttle_info_update(void *throttle_info, int flags);
 uint32_t throttle_lowpri_io(int sleep_amount);
 void   throttle_set_thread_io_policy(int policy);
+
 typedef struct __throttle_info_handle *throttle_info_handle_t;
-int            throttle_info_ref_by_mask(
-       uint64_t throttle_mask, throttle_info_handle_t *throttle_info_handle);
+int    throttle_info_ref_by_mask(uint64_t throttle_mask, throttle_info_handle_t *throttle_info_handle);
 void   throttle_info_rel_by_mask(throttle_info_handle_t throttle_info_handle);
 void   throttle_info_update_by_mask(void *throttle_info_handle, int flags);
+void   throttle_info_disable_throttle(int devno, boolean_t isfusion);
+/*
+ * 'throttle_info_handle' acquired via 'throttle_info_ref_by_mask'
+ * 'policy' should be specified as either IOPOL_UTILITY or IPOL_THROTTLE,
+ * all other values will be treated as IOPOL_NORMAL (i.e. no throttling)
+ */
+int    throttle_info_io_will_be_throttled(void *throttle_info_handle, int policy);
+
+#ifdef KERNEL_PRIVATE
+
+/* returned by throttle_io_will_be_throttled */
+#define THROTTLE_DISENGAGED    0
+#define THROTTLE_ENGAGED       1
+#define THROTTLE_NOW           2
+
+int  throttle_io_will_be_throttled(int lowpri_window_msecs, mount_t mp);
+int throttle_lowpri_window(void) __attribute__((pure));
+struct uthread;
+void throttle_info_reset_window(struct uthread *ut);
+
+#endif
+
+#ifdef XNU_KERNEL_PRIVATE
+void *exec_spawnattr_getmacpolicyinfo(const void *macextensions, const char *policyname, size_t *lenp);
+#endif
+
+#ifdef BSD_KERNEL_PRIVATE
+
+#define THROTTLE_IO_ENABLE     1
+#define THROTTLE_IO_DISABLE    0
+void sys_override_io_throttle(int flag);
+
+#endif /* BSD_KERNEL_PRIVATE */
+
 __END_DECLS
 
 #endif /* !_SYS_SYSTM_H_ */