xnu-4903.221.2.tar.gz

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

diff --git a/osfmk/i386/pmCPU.h b/osfmk/i386/pmCPU.h
index cbfaebe658d377c9a8de23f690472bb300c385cb..1ed973e4ceb2fae9a33dd1a88e058a6a463ee0cd 100644 (file)
--- a/osfmk/i386/pmCPU.h
+++ b/osfmk/i386/pmCPU.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2009 Apple Inc. All rights reserved.
+ * Copyright (c) 2006-2010 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -34,24 +34,26 @@
 #ifndef ASSEMBLER
 
 /*
- * This value should be changed each time that pmDsipatch_t or pmCallBacks_t
+ * This value should be changed each time that pmDispatch_t or pmCallBacks_t
  * changes.
  */
-#define PM_DISPATCH_VERSION    16
+#define PM_DISPATCH_VERSION    102
 
 /*
  * Dispatch table for functions that get installed when the power
  * management KEXT loads.
+ *
+ * pmDispatch_t is the set of functions that the kernel can use to call
+ * into the power management KEXT.
+ *
+ * pmCallBacks_t is the set of functions that the power management kext
+ * can call to get at specific kernel functions.
  */
 typedef struct
 {
-    int                        (*pmCPUStateInit)(void);
-
-    /*
-     * The following are the 'C' State interfaces.
-     */
+    kern_return_t      (*pmCPUStateInit)(void);
     void               (*cstateInit)(void);
-    uint64_t           (*cstateMachineIdle)(uint64_t maxIdleDuration);
+    uint64_t           (*MachineIdle)(uint64_t maxIdleDuration);
     uint64_t           (*GetDeadline)(x86_lcpu_t *lcpu);
     uint64_t           (*SetDeadline)(x86_lcpu_t *lcpu, uint64_t);
     void               (*Deadline)(x86_lcpu_t *lcpu);
@@ -72,10 +74,26 @@ typedef struct
     void               (*markAllCPUsOff)(void);
     void               (*pmSetRunCount)(uint32_t count);
     boolean_t          (*pmIsCPUUnAvailable)(x86_lcpu_t *lcpu);
+    int                        (*pmChooseCPU)(int startCPU, int endCPU, int preferredCPU);
+    int                        (*pmIPIHandler)(void *state);
+    void               (*pmThreadTellUrgency)(int urgency, uint64_t rt_period, uint64_t rt_deadline);
+    void               (*pmActiveRTThreads)(boolean_t active);
+    boolean_t           (*pmInterruptPrewakeApplicable)(void);
 } pmDispatch_t;
 
+/* common time fields exported to PM code. This structure may be
+ * allocated on the stack, so avoid making it unnecessarily large.
+ */
+typedef struct pm_rtc_nanotime {
+       uint64_t        tsc_base;               /* timestamp */
+       uint64_t        ns_base;                /* nanoseconds */
+       uint32_t        scale;                  /* tsc -> nanosec multiplier */
+       uint32_t        shift;                  /* tsc -> nanosec shift/div */
+       uint32_t        generation;             /* 0 == being updated */
+} pm_rtc_nanotime_t;
+
 typedef struct {
-    int                        (*setRTCPop)(uint64_t time);
+    uint64_t           (*setRTCPop)(uint64_t time);
     void               (*resyncDeadlines)(int cpu);
     void               (*initComplete)(void);
     x86_lcpu_t         *(*GetLCPU)(int cpu);
@@ -92,7 +110,16 @@ typedef struct {
     processor_t                (*LCPUtoProcessor)(int lcpu);
     processor_t                (*ThreadBind)(processor_t proc);
     uint32_t           (*GetSavedRunCount)(void);
+    void               (*pmSendIPI)(int cpu);
+    void               (*GetNanotimeInfo)(pm_rtc_nanotime_t *);
+    int                        (*ThreadGetUrgency)(uint64_t *rt_period, uint64_t *rt_deadline);
+    uint32_t           (*timerQueueMigrate)(int cpu);
+    void               (*RTCClockAdjust)(uint64_t adjustment);
     x86_topology_parameters_t  *topoParms;
+    boolean_t          (*InterruptPending)(void);
+    boolean_t          (*IsInterrupting)(uint8_t vector);
+    void               (*InterruptStats)(uint64_t intrs[256]);
+    void               (*DisableApicTimer)(void);
 } pmCallBacks_t;
 
 extern pmDispatch_t    *pmDispatch;
@@ -114,6 +141,7 @@ void pmTimerSave(void);
 void pmTimerRestore(void);
 kern_return_t pmCPUExitHalt(int cpu);
 kern_return_t pmCPUExitHaltToOff(int cpu);
+uint32_t pmTimerQueueMigrate(int);
 
 #define PM_HALT_NORMAL         0               /* normal halt path */
 #define PM_HALT_DEBUG          1               /* debug code wants to halt */
@@ -128,7 +156,19 @@ void pmSafeMode(x86_lcpu_t *lcpu, uint32_t flags);
 #define PM_SAFE_FL_RESUME      0x00000020      /* resume execution on the CPU */
 
 extern int pmsafe_debug;
-extern int idlehalt;
+/* Default urgency timing threshold for the DEBUG build */
+#define                URGENCY_NOTIFICATION_ASSERT_NS (5 * 1000 * 1000)
+extern uint64_t        urgency_notification_assert_abstime_threshold;
+
+x86_lcpu_t *
+pmGetLogicalCPU(int cpu);
+x86_lcpu_t *
+pmGetMyLogicalCPU(void);
+processor_t
+pmLCPUtoProcessor(int lcpu);
+x86_pkg_t *
+pmGetPkgRoot(void);
+
 
 /******************************************************************************
  *