X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..c18c124eaa464aaaa5549e99e5a70fc9cbb50944:/iokit/Kernel/IOFilterInterruptEventSource.cpp

diff --git a/iokit/Kernel/IOFilterInterruptEventSource.cpp b/iokit/Kernel/IOFilterInterruptEventSource.cpp
index 47a3b8a14..83b6ed6e0 100644
--- 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 +25,32 @@
  * 
  * @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>
+#include <IOKit/IOInterruptAccountingPrivate.h>
+
+#if IOKITSTATS
 
-#if KDEBUG
+#define IOStatisticsInitializeCounter() \
+do { \
+	IOStatistics::setCounterType(IOEventSource::reserved->counter, kIOStatisticsFilterInterruptEventSourceCounter); \
+} while (0)
 
-#define IOTimeTypeStampS(t)						\
-do {									\
-    IOTimeStampStart(IODBG_INTES(t),					\
-                     (uintptr_t) this, (uintptr_t) owner);	\
-} while(0)
+#define IOStatisticsInterrupt() \
+do { \
+	IOStatistics::countInterrupt(IOEventSource::reserved->counter); \
+} while (0)
 
-#define IOTimeTypeStampE(t)						\
-do {									\
-    IOTimeStampEnd(IODBG_INTES(t),					\
-                   (uintptr_t) this, (uintptr_t) owner);		\
-} while(0)
+#else
 
-#define IOTimeStampLatency()						\
-do {									\
-    IOTimeStampEnd(IODBG_INTES(IOINTES_LAT),				\
-                   (uintptr_t) this, (uintptr_t) 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 +99,9 @@ IOFilterInterruptEventSource::init(OSObject *inOwner,
         return false;
 
     filterAction = inFilterAction;
+
+    IOStatisticsInitializeCounter();
+	
     return true;
 }
 
@@ -133,13 +125,19 @@ 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 +153,81 @@ 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),
-                        (uintptr_t) filterAction, (uintptr_t) owner);
+    bool 	filterRes;
+    uint64_t	startTime = 0;
+    uint64_t	endTime = 0;
+	bool	trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+	
+	if (trace)
+		IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+					 VM_KERNEL_UNSLIDE(filterAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+
+    if (IOInterruptEventSource::reserved->statistics) {
+        if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)) {
+            startTime = mach_absolute_time();
+        }
+    }
+    
+    // Call the filter.
     filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
 
+    if (IOInterruptEventSource::reserved->statistics) {
+        if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelCountIndex)) {
+            IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelCountIndex], 1);
+        }
+
+        if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)) {
+            endTime = mach_absolute_time();
+            IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelTimeIndex], endTime - startTime);
+        }
+    }
+	
+	if (trace)
+		IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+				       VM_KERNEL_UNSLIDE(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;
+    bool 	filterRes;
+    uint64_t	startTime = 0;
+    uint64_t	endTime = 0;
+	bool	trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+	
+	if (trace)
+		IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+					 VM_KERNEL_UNSLIDE(filterAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+
+    if (IOInterruptEventSource::reserved->statistics) {
+        if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)) {
+            startTime = mach_absolute_time();
+        }
+    }
+    
+    // Call the filter.
+    filterRes = (*filterAction)(owner, this);
 
-IOTimeTypeStampS(IOINTES_INTCTXT);
+    if (IOInterruptEventSource::reserved->statistics) {
+        if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelCountIndex)) {
+            IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelCountIndex], 1);
+        }
 
-IOTimeTypeStampS(IOINTES_INTFLTR);
-    IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
-                        (uintptr_t) filterAction, (uintptr_t) owner);
-    filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
+        if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)) {
+            endTime = mach_absolute_time();
+            IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelTimeIndex], endTime - startTime);
+        }
+    }
 
+	if (trace)
+		IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+				       VM_KERNEL_UNSLIDE(filterAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+	
     if (filterRes) {
         prov->disableInterrupt(source);	/* disable the interrupt */
-
         signalInterrupt();
     }
-IOTimeTypeStampE(IOINTES_INTCTXT);
 }