xnu-4570.20.62.tar.gz

[apple/xnu.git] / osfmk / i386 / commpage / commpage.h

diff --git a/osfmk/i386/commpage/commpage.h b/osfmk/i386/commpage/commpage.h
index c8369d78d7f543edfc426740f41d68cefda16842..e4a2c7ac36fed989922940df98efec578a7175ff 100644 (file)
--- a/osfmk/i386/commpage/commpage.h
+++ b/osfmk/i386/commpage/commpage.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003-2009 Apple Inc. All rights reserved.
+ * Copyright (c) 2003-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -59,29 +59,17 @@
 
 #define COMMPAGE_DESCRIPTOR_NAME(label)  _commpage_ ## label
 
-#if defined (__i386__)
-
-#define COMMPAGE_DESCRIPTOR_FIELD_POINTER .long
-#define COMMPAGE_DESCRIPTOR_REFERENCE(label) \
-       .long COMMPAGE_DESCRIPTOR_NAME(label)
-
-#elif defined (__x86_64__)
-
 #define COMMPAGE_DESCRIPTOR_FIELD_POINTER .quad
 #define COMMPAGE_DESCRIPTOR_REFERENCE(label) \
        .quad COMMPAGE_DESCRIPTOR_NAME(label)
 
-#else
-#error unsupported architecture
-#endif
-
 #define COMMPAGE_FUNCTION_START(label,codetype,alignment) \
 .text                                                          ;\
 .code ## codetype                                              ;\
 .align alignment, 0x90                                         ;\
 L ## label ## :
 
-#define        COMMPAGE_DESCRIPTOR(label,address,must,cant)    \
+#define        COMMPAGE_DESCRIPTOR(label,address)                      \
 L ## label ## _end:                                            ;\
 .set L ## label ## _size, L ## label ## _end - L ## label      ;\
 .const_data                                                    ;\
@@ -90,8 +78,6 @@ COMMPAGE_DESCRIPTOR_NAME(label) ## :                          ;\
     COMMPAGE_DESCRIPTOR_FIELD_POINTER  L ## label              ;\
     .long                              L ## label ## _size     ;\
     .long                              address                 ;\
-    .long                              must                    ;\
-    .long                              cant                    ;\
 .text
 
 
@@ -120,6 +106,14 @@ COMMPAGE_DESCRIPTOR_NAME(label) ## :                               ;\
 
 #define UNIQUEID(name) L ## name
 
+/* COMMPAGE_JMP(target,from,start)
+ *
+ * This macro perform a jump to another commpage routine.
+ * Used to return from the PFZ by jumping via a return outside the PFZ.
+ */
+#define COMMPAGE_JMP(target,from,start)                                \
+       jmp      L ## start - from + target
+
 #else /* __ASSEMBLER__ */
 
 /* Each potential commpage routine is described by one of these.
@@ -131,8 +125,6 @@ typedef     struct  commpage_descriptor     {
     void               *code_address;                          // address of code
     uint32_t           code_length;                            // length in bytes
     uint32_t           commpage_address;                       // put at this address (_COMM_PAGE_BCOPY etc)
-    uint32_t           musthave;                               // _cpu_capability bits we must have
-    uint32_t           canthave;                               // _cpu_capability bits we can't have
 } commpage_descriptor;
 
 
@@ -150,17 +142,21 @@ typedef   volatile struct commpage_time_data      {
        uint64_t        gtod_sec_base;                          // _COMM_PAGE_GTOD_SEC_BASE
 } commpage_time_data;
 
-
 extern char    *commPagePtr32;                         // virt address of 32-bit commpage in kernel map
 extern char    *commPagePtr64;                         // ...and of 64-bit commpage
 
-extern void    commpage_set_timestamp(uint64_t abstime, uint64_t secs);
-extern void    commpage_disable_timestamp( void );
+extern  void   commpage_set_timestamp(uint64_t abstime, uint64_t sec, uint64_t frac, uint64_t scale, uint64_t tick_per_sec);
+#define commpage_disable_timestamp() commpage_set_timestamp( 0, 0, 0, 0, 0 );
 extern  void   commpage_set_nanotime(uint64_t tsc_base, uint64_t ns_base, uint32_t scale, uint32_t shift);
 extern void    commpage_set_memory_pressure(unsigned int  pressure);
 extern void    commpage_set_spin_count(unsigned int  count);
 extern void    commpage_sched_gen_inc(void);
 extern void    commpage_update_active_cpus(void);
+extern void    commpage_update_mach_approximate_time(uint64_t abstime);
+extern  void   commpage_update_mach_continuous_time(uint64_t sleeptime);
+extern  void   commpage_update_boottime(uint64_t boottime_usec);
+extern void    commpage_update_kdebug_state(void);
+extern void    commpage_update_atm_diagnostic_config(uint32_t);
 
 extern uint32_t        commpage_is_in_pfz32(uint32_t);
 extern uint32_t        commpage_is_in_pfz64(addr64_t);