xnu-517.tar.gz

[apple/xnu.git] / osfmk / ppc / cpu_data.h

diff --git a/osfmk/ppc/cpu_data.h b/osfmk/ppc/cpu_data.h
index 5e5ef54bb670e51eeb855f68353d1719db97cae8..34c2ff7eaf7668ff55773dcff2b26733221fae93 100644 (file)
--- a/osfmk/ppc/cpu_data.h
+++ b/osfmk/ppc/cpu_data.h
@@ -30,6 +30,12 @@
 #ifndef        PPC_CPU_DATA
 #define PPC_CPU_DATA
 
+typedef struct
+{
+       int             preemption_level;
+       int             simple_lock_count;
+       int             interrupt_level;
+} cpu_data_t;
 
 #define disable_preemption                     _disable_preemption
 #define enable_preemption                      _enable_preemption
@@ -38,18 +44,25 @@
 #define mp_enable_preemption                   _enable_preemption
 #define mp_enable_preemption_no_check          _enable_preemption_no_check
 
-extern cpu_data_t*                             get_cpu_data(void);
-
 extern __inline__ thread_act_t current_act(void) 
 {
        thread_act_t act;
        __asm__ volatile("mfsprg %0,1" : "=r" (act));  
        return act;
-}
+};
+
+/*
+ *     Note that the following function is ONLY guaranteed when preemption or interrupts are disabled
+ */
+extern __inline__ struct per_proc_info *getPerProc(void) 
+{
+       struct per_proc_info *perproc;
+       __asm__ volatile("mfsprg %0,0" : "=r" (perproc));  
+       return perproc;
+};
 
 #define        current_thread()        current_act()->thread
 
-extern void                                    set_machine_current_thread(thread_t);
 extern void                                    set_machine_current_act(thread_act_t);
 
 extern int                                     get_preemption_level(void);