xnu-1699.22.81.tar.gz

[apple/xnu.git] / iokit / Kernel / IOFilterInterruptEventSource.cpp

diff --git a/iokit/Kernel/IOFilterInterruptEventSource.cpp b/iokit/Kernel/IOFilterInterruptEventSource.cpp
index 9e268f6e76f85883daa16a63ad90c41cf93a70ff..944e84ced357c79514e52884297c68476ff427db 100644 (file)
--- a/iokit/Kernel/IOFilterInterruptEventSource.cpp
+++ b/iokit/Kernel/IOFilterInterruptEventSource.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2010 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -25,43 +25,31 @@
  * 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
-/*
-Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
 
-HISTORY
-    1999-4-15  Godfrey van der Linden(gvdl)
-        Created.
-*/
 #include <IOKit/IOFilterInterruptEventSource.h>
 #include <IOKit/IOService.h>
+#include <IOKit/IOKitDebug.h>
 #include <IOKit/IOTimeStamp.h>
 #include <IOKit/IOWorkLoop.h>
 
-#if KDEBUG
+#if IOKITSTATS
+
+#define IOStatisticsInitializeCounter() \
+do { \
+       IOStatistics::setCounterType(IOEventSource::reserved->counter, kIOStatisticsFilterInterruptEventSourceCounter); \
+} while (0)
 
-#define IOTimeTypeStampS(t)                                            \
-do {                                                                   \
-    IOTimeStampStart(IODBG_INTES(t),                                   \
-                     (unsigned int) this, (unsigned int) owner);       \
-} while(0)
+#define IOStatisticsInterrupt() \
+do { \
+       IOStatistics::countInterrupt(IOEventSource::reserved->counter); \
+} while (0)
 
-#define IOTimeTypeStampE(t)                                            \
-do {                                                                   \
-    IOTimeStampEnd(IODBG_INTES(t),                                     \
-                   (unsigned int) this, (unsigned int) owner);         \
-} while(0)
+#else
 
-#define IOTimeStampLatency()                                           \
-do {                                                                   \
-    IOTimeStampEnd(IODBG_INTES(IOINTES_LAT),                           \
-                   (unsigned int) this, (unsigned int) owner);         \
-} while(0)
+#define IOStatisticsInitializeCounter()
+#define IOStatisticsInterrupt()
 
-#else /* !KDEBUG */
-#define IOTimeTypeStampS(t)
-#define IOTimeTypeStampE(t)
-#define IOTimeStampLatency()
-#endif /* KDEBUG */
+#endif /* IOKITSTATS */
 
 #define super IOInterruptEventSource
 
@@ -110,6 +98,9 @@ IOFilterInterruptEventSource::init(OSObject *inOwner,
         return false;
 
     filterAction = inFilterAction;
+
+    IOStatisticsInitializeCounter();
+       
     return true;
 }
 
@@ -133,13 +124,19 @@ IOFilterInterruptEventSource *IOFilterInterruptEventSource
 
 void IOFilterInterruptEventSource::signalInterrupt()
 {
-IOTimeStampLatency();
-
+       bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+    
+    IOStatisticsInterrupt();
     producerCount++;
-
-IOTimeTypeStampS(IOINTES_SEMA);
+       
+       if (trace)
+           IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+    
     signalWorkAvailable();
-IOTimeTypeStampE(IOINTES_SEMA);
+       
+       if (trace)
+           IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+       
 }
 
 
@@ -155,39 +152,43 @@ IOFilterInterruptEventSource::getFilterAction() const
 void IOFilterInterruptEventSource::normalInterruptOccurred
     (void */*refcon*/, IOService */*prov*/, int /*source*/)
 {
-    bool filterRes;
-
-IOTimeTypeStampS(IOINTES_INTCTXT);
-
-IOTimeTypeStampS(IOINTES_INTFLTR);
-    IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
-                        (unsigned int) filterAction, (unsigned int) owner);
+    bool       filterRes;
+       bool    trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+       
+       if (trace)
+               IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+                                                                (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+    
+    // Call the filter.
     filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
-
+       
+       if (trace)
+               IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+                                                          (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+       
     if (filterRes)
         signalInterrupt();
-
-IOTimeTypeStampE(IOINTES_INTCTXT);
 }
 
 void IOFilterInterruptEventSource::disableInterruptOccurred
     (void */*refcon*/, IOService *prov, int source)
 {
-    bool filterRes;
-
-IOTimeTypeStampS(IOINTES_INTCTXT);
-
-IOTimeTypeStampS(IOINTES_INTFLTR);
-    IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
-                        (unsigned int) filterAction, (unsigned int) owner);
+    bool       filterRes;
+       bool    trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+       
+       if (trace)
+               IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+                                                                (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+    
+    // Call the filter.
     filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
-
+       
+       if (trace)
+               IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+                                                          (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+       
     if (filterRes) {
         prov->disableInterrupt(source);        /* disable the interrupt */
-
         signalInterrupt();
     }
-IOTimeTypeStampE(IOINTES_INTCTXT);
 }