xnu-2782.40.9.tar.gz

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

diff --git a/iokit/Kernel/IOFilterInterruptEventSource.cpp b/iokit/Kernel/IOFilterInterruptEventSource.cpp
index f4f73e2b4c1b3a371ddf791b5915590af1d8916e..83b6ed6e0c37d64dfbdced44e9f55664a00c1f40 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@
  * 
@@ -31,6 +31,26 @@
 #include <IOKit/IOKitDebug.h>
 #include <IOKit/IOTimeStamp.h>
 #include <IOKit/IOWorkLoop.h>
+#include <IOKit/IOInterruptAccountingPrivate.h>
+
+#if IOKITSTATS
+
+#define IOStatisticsInitializeCounter() \
+do { \
+       IOStatistics::setCounterType(IOEventSource::reserved->counter, kIOStatisticsFilterInterruptEventSourceCounter); \
+} while (0)
+
+#define IOStatisticsInterrupt() \
+do { \
+       IOStatistics::countInterrupt(IOEventSource::reserved->counter); \
+} while (0)
+
+#else
+
+#define IOStatisticsInitializeCounter()
+#define IOStatisticsInterrupt()
+
+#endif /* IOKITSTATS */
 
 #define super IOInterruptEventSource
 
@@ -79,6 +99,9 @@ IOFilterInterruptEventSource::init(OSObject *inOwner,
         return false;
 
     filterAction = inFilterAction;
+
+    IOStatisticsInitializeCounter();
+       
     return true;
 }
 
@@ -103,9 +126,10 @@ IOFilterInterruptEventSource *IOFilterInterruptEventSource
 void IOFilterInterruptEventSource::signalInterrupt()
 {
        bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
-
+    
+    IOStatisticsInterrupt();
     producerCount++;
-
+       
        if (trace)
            IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
     
@@ -129,20 +153,39 @@ IOFilterInterruptEventSource::getFilterAction() const
 void IOFilterInterruptEventSource::normalInterruptOccurred
     (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),
-                                                                (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+                                        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);
+
+    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),
-                                                          (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
-
+                                      VM_KERNEL_UNSLIDE(filterAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+       
     if (filterRes)
         signalInterrupt();
 }
@@ -150,20 +193,39 @@ void IOFilterInterruptEventSource::normalInterruptOccurred
 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),
-                                                                (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+                                        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);
-       
+
+    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),
-                                                          (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
-
+                                      VM_KERNEL_UNSLIDE(filterAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+       
     if (filterRes) {
         prov->disableInterrupt(source);        /* disable the interrupt */
         signalInterrupt();